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1,777 results on '"Fei, J"'

1. Research and Application of Deep Security Protection Technology in Power Industrial Control System

Author: Lin, W., Shi, C., Yu, Y., Fei, J., and Huang, X.
Published: 2023

2. Green synthesis of N-doped carbon quantum dots derived from Ginkgo biloba L. leaves for the determination of butocarboxim based on a “turn-off” fluorescent probe

Author: Fei, J. C. and Sun, S. W.
Published: 2024
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3. A Case of Rectal Endometriosis Misdiagnosed as Rectal Malignancy on Three Colonoscopies and Biopsies Sharing a Combined Literature Review

Author: Liang Y, Mei L, Ning Q, Zhang J, Fei J, and Dong J
Subjects: endometriosis, intestinal malignant tumor, colonoscopy, Gynecology and obstetrics, RG1-991
Abstract: Yufei Liang,1 Lina Mei,2 Qipeng Ning,2 Jiao Zhang,2 Jingying Fei,3 Jie Dong1 1Department of Gynaecology and Obstetrics, Huzhou Maternity & Child Health Care Hospital, Huzhou, People’s Republic of China; 2Department of Digestive, Huzhou Maternity & Child Health Care Hospital, Huzhou, People’s Republic of China; 3Department of Ultrasound, Huzhou Maternity & Child Health Care Hospital, Huzhou, People’s Republic of ChinaCorrespondence: Jie Dong, Department of Gynaecology and Obstetrics, Huzhou Maternity & Child Health Care Hospital, No. 2 East Street, Wuxing District, Huzhou City, Zhejiang Province, People’s Republic of China, Email 94276941@qq.comBackground: Endometriosis involves the intestine, and its clinical manifestations are nonspecific and lack of etiological manifestations. The diagnosis is difficult, which often leads to misdiagnosis. We report a case of endometriosis which was misdiagnosed as intestinal malignant tumor after colonoscopy and three biopsies.Case Presentation: We reported a 42-year-old woman who went to see a doctor because of anal distension. She was examined by three gastrointestinal endoscopists at different levels in different hospitals and underwent biopsy at the same time. Combined with clinical manifestations, imaging examination, endoscopic examination and pathological examination, she was misdiagnosed as intestinal malignant tumor, and partial intestinal resection was performed according to the surgical principle of malignant tumor.Conclusion: Although there are advanced gastrointestinal endoscopy and imaging techniques, intestinal endometriosis is still easy to be misdiagnosed. As our case report shows, after three colonoscopy and biopsy, it is still misdiagnosed as intestinal malignant tumor. Further research is needed to improve the ability of preoperative diagnosis, which deserves the attention of gastroenterologists and obstetricians and gynecologists.Keywords: endometriosis, intestinal malignant tumor, colonoscopy
Published: 2024

4. ATS Core Curriculum 2021. Pediatric Pulmonary Medicine: Pulmonary Infections

Author: Gross, Jane E, McCown, Michael Y, Okorie, Caroline UA, Bishay, Lara C, Dy, Fei J, Astudillo, Carmen Leon, Muhlebach, Marianne S, Abu-Nassar, Sara, Chen, Diana Y, Hossain, Nazia, Wang, Ruobing, Klouda, Timothy, Martiniano, Stacey L, Lenhart-Pendergrass, Patricia, Kirkby, Stephen, Ortenberg, Robin, McSparron, Jakob I, Wang, Tisha, Hayes, Margaret M, and Çoruh, Başak
Subjects: Education Systems, Education, Lung, Biomedical Imaging, Pediatric Research Initiative, Infectious Diseases, Prevention, Clinical Research, Pediatric, 4.2 Evaluation of markers and technologies, 4.1 Discovery and preclinical testing of markers and technologies, Detection, screening and diagnosis, Infection, Respiratory, Good Health and Well Being, molecular diagnostics, imaging, COVID-19, nontuberculous mycobacteria, immune compromise, Education systems
Abstract: The following is a concise review of the Pediatric Pulmonary Medicine Core reviewing pediatric pulmonary infections, diagnostic assays, and imaging techniques presented at the 2021 American Thoracic Society Core Curriculum. Molecular methods have revolutionized microbiology. We highlight the need to collect appropriate samples for detection of specific pathogens or for panels and understand the limitations of the assays. Considerable progress has been made in imaging modalities for detecting pediatric pulmonary infections. Specifically, lung ultrasound and lung magnetic resonance imaging are promising radiation-free diagnostic tools, with results comparable with their radiation-exposing counterparts, for the evaluation and management of pulmonary infections. Clinicians caring for children with pulmonary disease should ensure that patients at risk for nontuberculous mycobacteria disease are identified and receive appropriate nontuberculous mycobacteria screening, monitoring, and treatment. Children with coronavirus disease (COVID-19) typically present with mild symptoms, but some may develop severe disease. Treatment is mainly supportive care, and most patients make a full recovery. Anticipatory guidance and appropriate counseling from pediatricians on social distancing and diagnostic testing remain vital to curbing the pandemic. The pediatric immunocompromised patient is at risk for invasive and opportunistic pulmonary infections. Prompt recognition of predisposing risk factors, combined with knowledge of clinical characteristics of microbial pathogens, can assist in the diagnosis and treatment of specific bacterial, viral, or fungal diseases.
Published: 2021

5. ATS Core Curriculum 2020. Pediatric Pulmonary Medicine.

Author: Gross, Jane E, McCown, Michael Y, Okorie, Caroline, Bishay, Lara C, Dy, Fei J, Rettig, Jordan S, Baker, Christopher D, Balmes, John R, Barber, Andrew T, Bose, Sourav K, Casey, Alicia, Hawkins, Stephen MM, Kass, Alexandra, Keim, Garrett, Mokhallati, Nadine, Montgomery, Gregory, Peranteau, William H, Serrano, Ryan, Vece, Timothy J, Yehya, Nadir, Boyer, Debra, and Hayes, Margaret M
Subjects: e-cigarettes, pediatric, review, sarcoidosis, wildfires
Abstract: The American Thoracic Society Core Curriculum updates clinicians annually in adult and pediatric pulmonary disease, medical critical care, and sleep medicine, in a 3- to 4-year recurring cycle of topics. These topics will be presented at the 2020 International Conference. Below is the pediatric pulmonary medicine core, including pediatric hypoxemic respiratory failure; modalities in noninvasive management of chronic respiratory failure in childhood; surgical and nonsurgical management of congenital lung malformations; an update on smoke inhalation lung injury; an update on vaporizers, e-cigarettes, and other electronic delivery systems; pulmonary complications of sarcoidosis; pulmonary complications of congenital heart disease; and updates on the management of congenital diaphragmatic hernia.
Published: 2020

6. Search for Light Dark Matter Interactions Enhanced by the Migdal effect or Bremsstrahlung in XENON1T

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Antochi, V. C., Angelino, E., Arneodo, F., Barge, D., Baudis, L., Bauermeister, B., Bellagamba, L., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Depoian, A., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Gaemers, P., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hils, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Kobayashi, M., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manenti, L., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Palacio, J., Pelssers, B., Peres, R., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Qin, J., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Volta, G., Wack, O., Wang, H., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Instrumentation and Detectors
Abstract: Direct dark matter detection experiments based on a liquid xenon target are leading the search for dark matter particles with masses above $\sim$ 5 GeV/c$^2$, but have limited sensitivity to lighter masses because of the small momentum transfer in dark matter-nucleus elastic scattering. However, there is an irreducible contribution from inelastic processes accompanying the elastic scattering, which leads to the excitation and ionization of the recoiling atom (the Migdal effect) or the emission of a Bremsstrahlung photon. In this letter, we report on a probe of low-mass dark matter with masses down to about 85 MeV/c$^2$ by looking for electronic recoils induced by the Migdal effect and Bremsstrahlung, using data from the XENON1T experiment. Besides the approach of detecting both scintillation and ionization signals, we exploit an approach that uses ionization signals only, which allows for a lower detection threshold. This analysis significantly enhances the sensitivity of XENON1T to light dark matter previously beyond its reach.
Published: 2019
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7. Light Dark Matter Search with Ionization Signals in XENON1T

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Antochi, V. C., Angelino, E., Arneodo, F., Barge, D., Baudis, L., Bauermeister, B., Bellagamba, L., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Depoian, A., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Gaemers, P., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hils, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Kobayashi, M., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Palacio, J., Pelssers, B., Peres, R., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Qin, J., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Volta, G., Wack, O., Wang, H., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We report constraints on light dark matter (DM) models using ionization signals in the XENON1T experiment. We mitigate backgrounds with strong event selections, rather than requiring a scintillation signal, leaving an effective exposure of $(22 \pm 3)$ tonne-days. Above $\sim\!0.4\,\mathrm{keV}_\mathrm{ee}$, we observe $<1 \, \text{event}/(\text{tonne} \times \text{day} \times \text{keV}_\text{ee})$, which is more than one thousand times lower than in similar searches with other detectors. Despite observing a higher rate at lower energies, no DM or CEvNS detection may be claimed because we cannot model all of our backgrounds. We thus exclude new regions in the parameter spaces for DM-nucleus scattering for DM masses $m_\chi$ within $3-6\,\mathrm{GeV}/\mathrm{c}^2$, DM-electron scattering for $m_\chi > 30\,\mathrm{MeV}/\mathrm{c}^2$, and absorption of dark photons and axion-like particles for $m_\chi$ within $0.186 - 1 \, \mathrm{keV}/\mathrm{c}^2$.
Published: 2019
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8. XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Antochi, V. C., Arneodo, F., Baudis, L., Bauermeister, B., Bellagamba, L., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Peres, R., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N. N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: The XENON1T experiment at the Laboratori Nazionali del Gran Sasso is the most sensitive direct detection experiment for dark matter in the form of weakly interacting particles (WIMPs) with masses above $6\,$GeV/$c^2$ scattering off nuclei. The detector employs a dual-phase time projection chamber with 2.0 metric tons of liquid xenon in the target. A one metric $\mathrm{ton}\times\mathrm{year}$ exposure of science data was collected between October 2016 and February 2018. This article reports on the performance of the detector during this period and describes details of the data analysis that led to the most stringent exclusion limits on various WIMP-nucleon interaction models to date. In particular, signal reconstruction, event selection and calibration of the detector response to nuclear and electronic recoils in XENON1T are discussed.
Published: 2019
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9. The XENON1T Data Acquisition System

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Antochi, V. C., Arneodo, F., Barge, D., Baudis, L., Bauermeister, B., Bellagamba, L., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Gaemers, P., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Kobayashi, M., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Peres, R., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C. D., Upole, N., Vargas, M., Volta, G., Wack, O., Wang, H., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., Zopounidis, J. P., Pieracci, M., and Tintori, C.
Subjects: Physics - Instrumentation and Detectors
Abstract: The XENON1T liquid xenon time projection chamber is the most sensitive detector built to date for the measurement of direct interactions of weakly interacting massive particles with normal matter. The data acquisition system (DAQ) is constructed from commercial, open source, and custom components to digitize signals from the detector and store them for later analysis. The system achieves an extremely low signal threshold below a tenth of a photoelectron using a parallelized readout with the global trigger deferred to a later, software stage. The event identification is based on MongoDB database queries and has over 97% efficiency at recognizing interactions at the analysis energy threshold. A readout bandwidth over 300 MB/s is reached in calibration modes and is further expandable via parallelization. This DAQ system was successfully used during three years of operation of XENON1T., Comment: 14 pages, 6 figures, submitted to JINST; Version 2 with minor updates to text
Published: 2019
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10. First observation of two-neutrino double electron capture in $^{124}$Xe with XENON1T

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Anthony, M., Antochi, V. C., Arneodo, F., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kaminsky, B., Kish, A., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Peres, R., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Priel, N., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Xu, Z., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: Nuclear Experiment
Abstract: Two-neutrino double electron capture ($2\nu$ECEC) is a second-order Weak process with predicted half-lives that surpass the age of the Universe by many orders of magnitude. Until now, indications for $2\nu$ECEC decays have only been seen for two isotopes, $^{78}$Kr and $^{130}$Ba, and instruments with very low background levels are needed to detect them directly with high statistical significance. The $2\nu$ECEC half-life provides an important input for nuclear structure models and its measurement represents a first step in the search for the neutrinoless double electron capture processes ($0\nu$ECEC). A detection of the latter would have implications for the nature of the neutrino and give access to the absolute neutrino mass. Here we report on the first direct observation of $2\nu$ECEC in $^{124}$Xe with the XENON1T Dark Matter detector. The significance of the signal is $4.4\sigma$ and the corresponding half-life $T_{1/2}^{2\nu\text{ECEC}} = (1.8\pm 0.5_\text{stat}\pm 0.1_\text{sys})\times 10^{22}\;\text{y}$ is the longest ever measured directly. This study demonstrates that the low background and large target mass of xenon-based Dark Matter detectors make them well suited to measuring other rare processes as well, and it highlights the broad physics reach for even larger next-generation experiments.
Published: 2019
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11. XENON1T Dark Matter Data Analysis: Signal & Background Models, and Statistical Inference

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Antochi, V. C., Arneodo, F., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: The XENON1T experiment searches for dark matter particles through their scattering off xenon atoms in a 2 tonne liquid xenon target. The detector is a dual-phase time projection chamber, which measures simultaneously the scintillation and ionization signals produced by interactions in target volume, to reconstruct energy and position, as well as the type of the interaction. The background rate in the central volume of XENON1T detector is the lowest achieved so far with a liquid xenon-based direct detection experiment. In this work we describe the response model of the detector, the background and signal models, and the statistical inference procedures used in the dark matter searches with a 1 tonne$\times$year exposure of XENON1T data, that leaded to the best limit to date on WIMP-nucleon spin-independent elastic scatter cross-section for WIMP masses above 6 GeV/c$^2$.
Published: 2019
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12. Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Anthony, M., Antochi, V. C., Arneodo, F., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kazama, S., Kish, A., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Mosbacher, Y., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Priel, N., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wenz, D., Wittweg, C., Wulf, J., Xu, Z., Ye, J., Zhang, Y., Zhu, T., and Zopounidis, J. P.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract: We report the first experimental results on spin-dependent elastic weakly interacting massive particle (WIMP) nucleon scattering from the XENON1T dark matter search experiment. The analysis uses the full ton year exposure of XENON1T to constrain the spin-dependent proton-only and neutron-only cases. No significant signal excess is observed, and a profile likelihood ratio analysis is used to set exclusion limits on the WIMP-nucleon interactions. This includes the most stringent constraint to date on the WIMP-neutron cross section, with a minimum of $6.3\times10^{-42}$ cm$^2$ at 30 GeV/c${}^2$ and 90% confidence level. The results are compared with those from collider searches and used to exclude new parameter space in an isoscalar theory with an axial-vector mediator.
Published: 2019
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13. Youth-Adult Partnerships that Foster Individual and Collective Wellbeing

Author: Brion-Meisels, G., primary, Vasudevan, D. S., additional, and Fei, J. T., additional
Published: 2023
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14. First results on the scalar WIMP-pion coupling, using the XENON1T experiment

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Anthony, M., Antochi, V. C., Arneodo, F., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Grandi, L., Greene, Z., Hasterok, C., Hogenbirk, E., Howlett, J., Iacovacci, M., Itay, R., Joerg, F., Kaminsky, B., Kazama, S., Kish, A., Koltman, G., Kopec, A., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Fune, E. López, Macolino, C., Mahlstedt, J., Manfredini, A., Marignetti, F., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Mastroianni, S., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Odgers, K., Pelssers, B., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Priel, N., Qiu, H., García, D. Ramírez, Reichard, S., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Šarčević, N., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Therreau, C., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., Zhu, T., Zopounidis, J. P., Hoferichter, M., Klos, P., Menéndez, J., and Schwenk, A.
Subjects: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, Nuclear Theory
Abstract: We present first results on the scalar WIMP-pion coupling from 1 t$\times$yr of exposure with the XENON1T experiment. This interaction is generated when the WIMP couples to a virtual pion exchanged between the nucleons in a nucleus. In contrast to most non-relativistic operators, these pion-exchange currents can be coherently enhanced by the total number of nucleons, and therefore may dominate in scenarios where spin-independent WIMP-nucleon interactions are suppressed. Moreover, for natural values of the couplings, they dominate over the spin-dependent channel due to their coherence in the nucleus. Using the signal model of this new WIMP-pion channel, no significant excess is found, leading to an upper limit cross section of $6.4\times10^{-46}$ cm$^2$ (90 % confidence level) at 30 GeV/c$^2$ WIMP mass.
Published: 2018
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15. Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Anthony, M., Arneodo, F., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Elykov, A., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Grandi, L., Greene, Z., Qiu, H., Hasterok, C., Hogenbirk, E., Howlett, J., Itay, R., Joerg, F., Kaminsky, B., Kazama, S., Kish, A., Koltman, G., Landsman, H., Lang, R. F., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Mahlstedt, J., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Masson, D., Messina, M., Micheneau, K., Miller, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pelssers, B., Piastra, F., Pienaar, J., Pizzella, V., Plante, G., Podviianiuk, R., Priel, N., García, D. Ramírez, Rauch, L., Reichard, S., Reuter, C., Riedel, B., Rizzo, A., Rocchetti, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schulte, D., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Thers, D., Toschi, F., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., and Zhu, T.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract: We report on a search for Weakly Interacting Massive Particles (WIMPs) using 278.8 days of data collected with the XENON1T experiment at LNGS. XENON1T utilizes a liquid xenon time projection chamber with a fiducial mass of $(1.30 \pm 0.01)$ t, resulting in a 1.0 t$\times$yr exposure. The energy region of interest, [1.4, 10.6] $\mathrm{keV_{ee}}$ ([4.9, 40.9] $\mathrm{keV_{nr}}$), exhibits an ultra-low electron recoil background rate of $(82\substack{+5 \\ -3}\textrm{ (sys)}\pm3\textrm{ (stat)})$ events/$(\mathrm{t}\times\mathrm{yr}\times\mathrm{keV_{ee}})$. No significant excess over background is found and a profile likelihood analysis parameterized in spatial and energy dimensions excludes new parameter space for the WIMP-nucleon spin-independent elastic scatter cross-section for WIMP masses above 6 GeV/c${}^2$, with a minimum of $4.1\times10^{-47}$ cm$^2$ at 30 GeV/c${}^2$ and 90% confidence level., Comment: 8 pages, 5 figures, v2 limit points as csv
Published: 2018
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16. XENON1T dark matter data analysis: Signal and background models and statistical inference

Author: Aprile, E, Aalbers, J, Agostini, F, Alfonsi, M, Althueser, L, Amaro, FD, Antochi, VC, Arneodo, F, Baudis, L, Bauermeister, B, Benabderrahmane, ML, Berger, T, Breur, PA, Brown, A, Brown, E, Bruenner, S, Bruno, G, Budnik, R, Capelli, C, Cardoso, JMR, Cichon, D, Coderre, D, Colijn, AP, Conrad, J, Cussonneau, JP, Decowski, MP, de Perio, P, Di Gangi, P, Di Giovanni, A, Diglio, S, Elykov, A, Eurin, G, Fei, J, Ferella, AD, Fieguth, A, Fulgione, W, Rosso, A Gallo, Galloway, M, Gao, F, Garbini, M, Grandi, L, Greene, Z, Hasterok, C, Hogenbirk, E, Howlett, J, Iacovacci, M, Itay, R, Joerg, F, Kazama, S, Kish, A, Koltman, G, Kopec, A, Landsman, H, Lang, RF, Levinson, L, Lin, Q, Lindemann, S, Lindner, M, Lombardi, F, Lopes, JAM, Fune, E Lopez, Macolino, C, Mahlstedt, J, Manfredini, A, Marignetti, F, Undagoitia, T Marrodan, Masbou, J, Masson, D, Mastroianni, S, Messina, M, Micheneau, K, Miller, K, Molinario, A, Mora, K, Mosbacher, Y, Murra, M, Naganoma, J, Ni, K, Oberlack, U, Odgers, K, Pelssers, B, Peres, R, Piastra, F, Pienaar, J, Pizzella, V, Plante, G, Podviianiuk, R, Qiu, H, Garcia, D Ramirez, Reichard, S, Riedel, B, Rizzo, A, Rocchetti, A, Rupp, N, dos Santos, JMF, Sartorelli, G, Sarcevic, N, Scheibelhut, M, Schindler, S, and Schreiner, J
Subjects: physics.ins-det, hep-ex
Abstract: The XENON1T experiment searches for dark matter particles through theirscattering off xenon atoms in a 2 tonne liquid xenon target. The detector is adual-phase time projection chamber, which measures simultaneously thescintillation and ionization signals produced by interactions in target volume,to reconstruct energy and position, as well as the type of the interaction. Thebackground rate in the central volume of XENON1T detector is the lowestachieved so far with a liquid xenon-based direct detection experiment. In thiswork we describe the response model of the detector, the background and signalmodels, and the statistical inference procedures used in the dark mattersearches with a 1 tonne$\times$year exposure of XENON1T data, that leaded tothe best limit to date on WIMP-nucleon spin-independent elastic scattercross-section for WIMP masses above 6 GeV/c$^2$.
Published: 2019

17. Knowledge visualisation for construction procurement decision-making: a process innovation

Author: Zhao, Nan, Ying, Fei J., and Tookey, John
Published: 2022
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18. The cross-sectional study of depressive symptoms and associated factors among adolescents by backpropagation neural network

Author: Lv, J., Guo, X., Meng, C., Fei, J., Ren, H., Zhang, Y., Qin, Z., Hu, Y., Yuan, T., Liang, L., Li, C., Yue, J., Gao, R., Song, Q., Zhao, X., and Mei, S.
Published: 2022
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19. Achieving construction innovation in best value procurement projects: New Zealand mega projects study

Author: Ying, Fei J., Zhao, Nan, and Tookey, John
Published: 2022
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20. Signal Yields of keV Electronic Recoils and Their Discrimination from Nuclear Recoils in Liquid Xenon

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., García, D. Ramírez, Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: We report on the response of liquid xenon to low energy electronic recoils below 15 keV from beta decays of tritium at drift fields of 92 V/cm, 154 V/cm and 366 V/cm using the XENON100 detector. A data-to-simulation fitting method based on Markov Chain Monte Carlo is used to extract the photon yields and recombination fluctuations from the experimental data. The photon yields measured at the two lower fields are in agreement with those from literature; additional measurements at a higher field of 366 V/cm are presented. The electronic and nuclear recoil discrimination as well as its dependence on the drift field and photon detection efficiency are investigated at these low energies. The results provide new measurements in the energy region of interest for dark matter searches using liquid xenon.
Published: 2017
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21. Search for Bosonic Super-WIMP Interactions with the XENON100 Experiment

Author: XENON collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, Calven, J., Capelli, C., Cardoso, J. M. R., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Howlett, J., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., García, D. Ramírez, Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wittweg, C., Wulf, J., Ye, J., Zhang, Y., and Zhu, T.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: We present results of searches for vector and pseudo-scalar bosonic super-WIMPs, which are dark matter candidates with masses at the keV-scale, with the XENON100 experiment. XENON100 is a dual-phase xenon time projection chamber operated at the Laboratori Nazionali del Gran Sasso. A profile likelihood analysis of data with an exposure of 224.6 live days $\times$ 34\,kg showed no evidence for a signal above the expected background. We thus obtain new and stringent upper limits in the $(8-125)$\,keV/c$^2$ mass range, excluding couplings to electrons with coupling constants of $g_{ae} > 3\times10^{-13}$ for pseudo-scalar and $\alpha'/\alpha > 2\times10^{-28}$ for vector super-WIMPs, respectively. These limits are derived under the assumption that super-WIMPs constitute all of the dark matter in our galaxy., Comment: 6 pages, 6 figures
Published: 2017
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22. The XENON1T Dark Matter Experiment

Author: XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Antunes, B., Arneodo, F., Balata, M., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breskin, A., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Chiarini, A., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Corrieri, R., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Disdier, J. -M., Doets, M., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Florin, D., Front, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Giboni, K. -L., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Huhmann, C., Itay, R., James, A., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Maier, R., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orlandi, D., Othegraven, R., Pakarha, P., Parlati, S., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., García, D. Ramírez, Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Saldahna, R., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stern, M., Stein, A., Tatananni, D., Tatananni, L., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Vargas, M., Wack, O., Walet, R., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wittweg, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract: The XENON1T experiment at the Laboratori Nazionali del Gran Sasso (LNGS) is the first WIMP dark matter detector operating with a liquid xenon target mass above the ton-scale. Out of its 3.2t liquid xenon inventory, 2.0t constitute the active target of the dual-phase time projection chamber. The scintillation and ionization signals from particle interactions are detected with low-background photomultipliers. This article describes the XENON1T instrument and its subsystems as well as strategies to achieve an unprecedented low background level. First results on the detector response and the performance of the subsystems are also presented., Comment: 22 pages, 25 figures
Published: 2017
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23. Intrinsic backgrounds from Rn and Kr in the XENON100 experiment

Author: XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Pizzella, V., Plante, G., Priel, N., García, D. Ramírez, Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wang, Z., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: In this paper, we describe the XENON100 data analyses used to assess the target-intrinsic background sources radon ($^{222}$Rn), thoron ($^{220}$Rn) and krypton ($^{85}$Kr). We detail the event selections of high-energy alpha particles and decay-specific delayed coincidences. We derive distributions of the individual radionuclides inside the detector and quantify their abundances during the main three science runs of the experiment over a period of $\sim$ 4 years, from January 2010 to January 2014. We compare our results to external measurements of radon emanation and krypton concentrations where we find good agreement. We report an observed reduction in concentrations of radon daughters that we attribute to the plating-out of charged ions on the negatively biased cathode., Comment: v1: 11 pages, 5 figures, 4 tables; v2: 12 pages, 5 figures, 4 tables, article updated after referee process
Published: 2017
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24. First Dark Matter Search Results from the XENON1T Experiment

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Gardner, R., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Howlett, J., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Mariş, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Morå, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Riedel, B., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thapa, S., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Upole, N., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., and Zhu, T.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: We report the first dark matter search results from XENON1T, a $\sim$2000-kg-target-mass dual-phase (liquid-gas) xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy and the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042$\pm$12) kg fiducial mass and in the [5, 40] $\mathrm{keV}_{\mathrm{nr}}$ energy range of interest for WIMP dark matter searches, the electronic recoil background was $(1.93 \pm 0.25) \times 10^{-4}$ events/(kg $\times$ day $\times \mathrm{keV}_{\mathrm{ee}}$), the lowest ever achieved in a dark matter detector. A profile likelihood analysis shows that the data is consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV/c${}^2$, with a minimum of 7.7 $\times 10^{-47}$ cm${}^2$ for 35-GeV/c${}^2$ WIMPs at 90% confidence level., Comment: 6 pages, 4 figures, v2 data upload Fig 2/4, v3 as accepted by PRL with textual clarifications, v4 data upload Fig 1
Published: 2017
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25. Effective field theory search for high-energy nuclear recoils using the XENON100 dark matter detector

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Mora, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., and Farmer, B.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We report on WIMP search results in the XENON100 detector using a non-relativistic effective field theory approach. The data from science run II (34 kg $\times$ 224.6 live days) was re-analyzed, with an increased recoil energy interval compared to previous analyses, ranging from $(6.6 - 240)~\mathrm{keV_\mathrm{nr}}$. The data is found to be compatible with the background-only hypothesis. We present 90% confidence level exclusion limits on the coupling constants of WIMP-nucleon effective operators using a binned profile likelihood method. We also consider the case of inelastic WIMP scattering, where incident WIMPs may up-scatter to a higher mass state, and set exclusion limits on this model as well.
Published: 2017
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26. Material radioassay and selection for the XENON1T dark matter experiment

Author: XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calven, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Pizzella, V., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., Laubenstein, M., and Nisi, S.
Subjects: Physics - Instrumentation and Detectors
Abstract: The XENON1T dark matter experiment aims to detect Weakly Interacting Massive Particles (WIMPs) through low-energy interactions with xenon atoms. To detect such a rare event necessitates the use of radiopure materials to minimize the number of background events within the expected WIMP signal region. In this paper we report the results of an extensive material radioassay campaign for the XENON1T experiment. Using gamma-ray spectroscopy and mass spectrometry techniques, systematic measurements of trace radioactive impurities in over one hundred samples within a wide range of materials were performed. The measured activities allowed for stringent selection and placement of materials during the detector construction phase and provided the input for XENON1T detection sensitivity estimates through Monte Carlo simulations.
Published: 2017
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27. Search for WIMP Inelastic Scattering off Xenon Nuclei with XENON100

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kazama, S., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Mora, K., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wang, Z., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Instrumentation and Detectors
Abstract: We present the first constraints on the spin-dependent, inelastic scattering cross section of Weakly Interacting Massive Particles (WIMPs) on nucleons from XENON100 data with an exposure of 7.64$\times$10$^3$\,kg\,day. XENON100 is a dual-phase xenon time projection chamber with 62\,kg of active mass, operated at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy and designed to search for nuclear recoils from WIMP-nucleus interactions. Here we explore inelastic scattering, where a transition to a low-lying excited nuclear state of $^{129}$Xe is induced. The experimental signature is a nuclear recoil observed together with the prompt de-excitation photon. We see no evidence for such inelastic WIMP-$^{129}$Xe interactions. A profile likelihood analysis allows us to set a 90\% C.L. upper limit on the inelastic, spin-dependent WIMP-nucleon cross section of $3.3 \times 10^{-38}$\,cm$^{2}$ at 100\,GeV/c$^2$. This is the most constraining result to date, and sets the pathway for an analysis of this interaction channel in upcoming, larger dual-phase xenon detectors.
Published: 2017
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28. Search for magnetic inelastic dark matter with XENON100

Author: XENON collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lombardi, F., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vargas, M., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhanga, Y.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Instrumentation and Detectors
Abstract: We present the first search for dark matter-induced delayed coincidence signals in a dual-phase xenon time projection chamber, using the 224.6 live days of the XENON100 science run II. This very distinct signature is predicted in the framework of magnetic inelastic dark matter which has been proposed to reconcile the modulation signal reported by the DAMA/LIBRA collaboration with the null results from other direct detection experiments. No candidate event has been found in the region of interest and upper limits on the WIMP's magnetic dipole moment are derived. The scenarios proposed to explain the DAMA/LIBRA modulation signal by magnetic inelastic dark matter interactions of WIMPs with masses of 58.0 GeV/c$^2$ and 122.7 GeV/c$^2$ are excluded at 3.3 $\sigma$ and 9.3 $\sigma$, respectively., Comment: 10 pages, 6 figures
Published: 2017
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29. Online $^{222}$Rn removal by cryogenic distillation in the XENON100 experiment

Author: XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Lin, Q., Lindemann, S., Lindner, M., Manfredini, J. A. M. Lopes A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Pizzella, V., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., and Cristescu, I.
Subjects: Physics - Instrumentation and Detectors
Abstract: We describe the purification of xenon from traces of the radioactive noble gas radon using a cryogenic distillation column. The distillation column is integrated into the gas purification loop of the XENON100 detector for online radon removal. This enabled us to significantly reduce the constant $^{222}$Rn background originating from radon emanation. After inserting an auxiliary $^{222}$Rn emanation source in the gas loop, we determined a radon reduction factor of R > 27 (95% C.L.) for the distillation column by monitoring the $^{222}$Rn activity concentration inside the XENON100 detector.
Published: 2017
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30. Search for Electronic Recoil Event Rate Modulation with 4 Years of XENON100 Data

Author: The XENON collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Butikofer, L., Calven, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodan, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Pizzella, V., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract: We report on a search for electronic recoil event rate modulation signatures in the XENON100 data accumulated over a period of 4 years, from January 2010 to January 2014. A profile likelihood method, which incorporates the stability of the XENON100 detector and the known electronic recoil background model, is used to quantify the significance of periodicity in the time distribution of events. There is a weak modulation signature at a period of $431^{+16}_{-14}$ days in the low energy region of $(2.0-5.8)$ keV in the single scatter event sample, with a global significance of $1.9\,\sigma$, however no other more significant modulation is observed. The expected annual modulation of a dark matter signal is not compatible with this result. Single scatter events in the low energy region are thus used to exclude the DAMA/LIBRA annual modulation as being due to dark matter electron interactions via axial vector coupling at $5.7\,\sigma$., Comment: 6 pages, 5 figures
Published: 2017
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31. Removing krypton from xenon by cryogenic distillation to the ppq level

Author: XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Lin, Q., Lindemann, S., Lindner, M., Manfredini, J. A. M. Lopes A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Pizzella, V., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., and Cristescu, I.
Subjects: Physics - Instrumentation and Detectors
Abstract: The XENON1T experiment aims for the direct detection of dark matter in a cryostat filled with 3.3 tons of liquid xenon. In order to achieve the desired sensitivity, the background induced by radioactive decays inside the detector has to be sufficiently low. One major contributor is the $\beta$-emitter $^{85}$Kr which is an intrinsic contamination of the xenon. For the XENON1T experiment a concentration of natural krypton in xenon $\rm{^{nat}}$Kr/Xe < 200 ppq (parts per quadrillion, 1 ppq = 10$^{-15}$ mol/mol) is required. In this work, the design of a novel cryogenic distillation column using the common McCabe-Thiele approach is described. The system demonstrated a krypton reduction factor of 6.4$\cdot$10$^5$ with thermodynamic stability at process speeds above 3 kg/h. The resulting concentration of $\rm{^{nat}}$Kr/Xe < 26 ppq is the lowest ever achieved, almost one order of magnitude below the requirements for XENON1T and even sufficient for future dark matter experiments using liquid xenon, such as XENONnT and DARWIN.
Published: 2016
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32. ATS core curriculum 2023. Pediatric pulmonary medicine: Respiratory disorders in infants

Author: Leon‐Astudillo, Carmen, primary, Dy, Fei J., additional, McCown, Michael Y., additional, Perez, Iris A., additional, Chhabra, Divya, additional, Bansal, Manvi, additional, Maloney, Melissa A., additional, Bedoya, Mariana, additional, Ezmigna, Dima, additional, Bush, Douglas, additional, Okorie, Caroline U. A., additional, and Gross, Jane E., additional
Published: 2024
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33. Results from a Calibration of XENON100 Using a Source of Dissolved Radon-220

Author: The XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Butikofer, L., Calven, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., dePerio, P., DiGangi, P., DiGiovanni, A., Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., LeCalloch, M., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodan, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., lante, G. P, Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., dosSantos, J. M. F., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., and Zhang, Y.
Subjects: Physics - Instrumentation and Detectors
Abstract: A Rn-220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the Pb-212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn-222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn-222. Using the delayed coincidence of Rn-220/Po-216, we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po-212, t = 293.9+-(1.0)+-(0.6) ns.
Published: 2016
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34. XENON100 Dark Matter Results from a Combination of 477 Live Days

Author: XENON100 Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Levy, C., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Instrumentation and Detectors
Abstract: We report on WIMP search results of the XENON100 experiment, combining three runs summing up to 477 live days from January 2010 to January 2014. Data from the first two runs were already published. A blind analysis was applied to the last run recorded between April 2013 and January 2014 prior to combining the results. The ultra-low electromagnetic background of the experiment, ~$5 \times 10^{-3}$ events/(keV$_{\mathrm{ee}}\times$kg$\times$day) before electronic recoil rejection, together with the increased exposure of 48 kg $\times$ yr improves the sensitivity. A profile likelihood analysis using an energy range of (6.6 - 43.3) keV$_{\mathrm{nr}}$ sets a limit on the elastic, spin-independent WIMP-nucleon scattering cross section for WIMP masses above 8 GeV/$c^2$, with a minimum of 1.1 $\times 10^{-45}$ cm$^2$ at 50 GeV/$c^2$ and 90% confidence level. We also report updated constraints on the elastic, spin-dependent WIMP-nucleon cross sections obtained with the same data. We set upper limits on the WIMP-neutron (proton) cross section with a minimum of 2.0 $\times 10^{-40}$ cm$^2$ (52$\times 10^{-40}$ cm$^2$) at a WIMP mass of 50 GeV/$c^2$, at 90% confidence level., Comment: 12 pages, 13 figures, 2 tables, Limit data points in TeX
Published: 2016
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35. Search for Two-Neutrino Double Electron Capture of $^{124}$Xe with XENON100

Author: The XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Levy, C., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.
Subjects: Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract: Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For $^{124}$Xe this process has not yet been observed and its detection would provide a new reference for nuclear matrix element calculations. We have conducted a search for two-neutrino double electron capture from the K-shell of $^{124}$Xe using 7636 kg$\cdot$d of data from the XENON100 dark matter detector. Using a Bayesian analysis we observed no significant excess above background, leading to a lower 90 % credibility limit on the half-life $T_{1/2}>6.5\times10^{20}$ yr. We also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and find a sensitivity of $T_{1/2}>6.1\times10^{22}$ yr after an exposure of 2 t$\cdot$yr., Comment: 6 pages, 4 figures
Published: 2016
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36. Green synthesis of N-doped carbon quantum dots derived from Ginkgo biloba L.leaves for the determination of butocarboxim based on a “turn-off” fluorescent probe

Author: Fei, J. C. and Sun, S. W.
Abstract: Carbon quantum dots (CDs) would gradually replace metal-based quantum dots due to their advantages of excellent photo-physical properties, low toxicity, and outstanding water solubility. In the current study, the hydrothermal synthesis method was simple, convenient, and fast, and herein was used to prepare nitrogen-doping carbon dots (N-CDs) from the combination of Ginkgo biloba L.leaves and ethylenediamine as carbon and nitrogen precursors, respectively. Furthermore, butocarboxim, a carbamate pesticide, can quench the fluorescence of proposed N-CDs. Therefore, the fluorescent signal changes of N-CDs caused by butocarboxim contributed to robust and sensitive butocarboxim sensing. Under the optimal condition, the fluorescent sensor based on the as-prepared N-CDs demonstrated a good linear response for butocarboxim detection in the range of 0.625–40.0 μg/L with a limit of detection (LOD) of 0.2 μg/L. In addition, the sensor was successfully applied to butocarboxim determination in real water samples and obtained acceptable results with the recoveries ranging from 97.2 to 106.8% and the RSD less than 6%.
Published: 2024
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37. Commute and labour productivity: investigation of inner city construction sites

Author: Chaparro, Daniel Alejandro, Ying, Fei J., Rotimi, Funmilayo Ebun, and Egbelakin, Temitope
Published: 2020
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38. Evaluating packaging performance for bananas under simulated vibration

Author: Fernando, I., Fei, J., Stanley, R., and Rouillard, V.
Published: 2020
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39. Human-Machine Cooperation in Safety Management Developing an Emergency-Response Decision-Making Framework

Author: Zhao, Nan, primary, Ying, fei J., additional, and Han, Rui, additional
Published: 2024
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40. The prenucleosome, a stable conformational isomer of the nucleosome

Author: Fei, J, Torigoe, SE, Brown, CR, Khuong, MT, Kassavetis, GA, Boeger, H, and Kadonaga, JT
Subjects: Developmental Biology, Biological Sciences, Medical and Health Sciences, Psychology and Cognitive Sciences
Abstract: Chromatin comprises nucleosomes as well as nonnucleosomal histone–DNA particles. Prenucleosomes are rapidly formed histone–DNA particles that can be converted into canonical nucleosomes by a motor protein such as ACF. Here we show that the prenucleosome is a stable conformational isomer of the nucleosome. It consists of a histone octamer associated with ~80 base pair (bp) of DNA, which is located at a position that corresponds to the central 80 bp of a nucleosome core particle. Monomeric prenucleosomes with free flanking DNA do not spontaneously fold into nucleosomes but can be converted into canonical nucleosomes by an ATP-driven motor protein such as ACF or Chd1. In addition, histone H3K56, which is located at the DNA entry and exit points of a canonical nucleosome, is specifically acetylated by p300 in prenucleosomes relative to nucleosomes. Prenucleosomes assembled in vitro exhibit properties that are strikingly similar to those of nonnucleosomal histone–DNA particles in the upstream region of active promoters in vivo. These findings suggest that the prenucleosome, the only known stable conformational isomer of the nucleosome, is related to nonnucleosomal histone–DNA species in the cell.
Published: 2015

41. Characteristics of mesoscale convective systems over China and its vicinity using geostationary satellite FY2

Author: Yang, X, Fei, J, Huang, X, Cheng, X, Carvalho, LMV, and He, H
Subjects: Meteorology & Atmospheric Sciences, Atmospheric Sciences, Oceanography, Geomatic Engineering
Abstract: This study investigates mesoscale convective systems (MCSs) over China and its vicinity during the boreal warm season (May-August) from 2005 to 2012 based on data fromthe geostationary satellite Fengyun 2 (FY2) series. The authors classified and analyzed the quasi-circular and elongated MCSs on both large and small scales, including mesoscale convective complexes (MCCs), persistent elongated convective systems (PECSs), meso-ß circular convective systems (MßCCSs), meso-ß elongated convective system (MßECSs), and two additional types named small meso-ß circular convective systems (SMßCCSs) and small meso-ß elongated convective systems (SMßECSs). Results show that nearly 80% of the 8696 MCSs identified in this study fall into the elongated categories. Overall, MCSs occur mainly at three zonal bands with average latitudes around 208, 308, and 508N. The frequency of MCSs occurrences is maximized at the zonal band around 208N and decreases with increase in latitude. During the eight warm seasons, the period of peak systems occurrences is in July, followed decreasingly by June, August, and May. Mean while, fromMay to August three kinds of monthly variations are observed, which are clear northward migration, rapid increase, and persistent high frequency of MCS occurrences. Compared to MCSs in the United States, the four types of MCSs (MCCs, PECSs, MßCCSs, and MßECSs) are relatively smaller both in size and eccentricity but exhibit nearly equal life spans. Moreover, MCSs in both countries share similar positive correlations between their duration and maximum extent. Additionally, the diurnal cycles of MCSs in both countries are similar (local time) regarding the three stages of initiation, maturation, and termination.
Published: 2015

42. Green synthesis of N-doped carbon quantum dots derived from Ginkgo biloba L. leaves for the determination of butocarboxim based on a “turn-off” fluorescent probe

Author: Fei, J. C., primary and Sun, S. W., additional
Published: 2023
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43. ATS Core Curriculum 2022. Pediatric Pulmonary Medicine: Updates in pediatric neuromuscular disease

Author: Leon‐Astudillo, Carmen, primary, Okorie, Caroline U. A., additional, McCown, Michael Y., additional, Dy, Fei J., additional, Puranik, Sandeep, additional, Prero, Moshe, additional, ElMallah, Mai K., additional, Treat, Lauren, additional, and Gross, Jane E., additional
Published: 2023
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44. Leadership: A Case Study Analysis of The Leadership Style in Aurora State College of Technology

Author: Ariel Francis E. Bognot, Mary Fei J. Wy, Jomar R. Merciales, Noel T. Florencondia, Michael John M. Villar, Ariel Francis E. Bognot, Mary Fei J. Wy, Jomar R. Merciales, Noel T. Florencondia, and Michael John M. Villar
Abstract: State universities and colleges are components of the higher education system that provide students with a high-quality education. As a result, the effectiveness of their operations, as well as the leadership and management within them, have a significant impact on the quality of education they provide. Leadership style has a significant impact on the quality of instruction in state colleges and universities. The type of leadership will influence the overall atmosphere on campus. Authoritarian to democratic leadership styles exist. Top-down decision-making without input from stakeholders, teachers, or students, for example, may result from authoritarian leadership approaches. The quality of education provided by state colleges and universities is also influenced by management. Poor management can result in a lack of resources, a breakdown in communication, and a general lack of support for students and faculty. In contrast, good management can result in a more organized and efficient university system, as well as more resources and support for students and faculty. Good management can also lead to better student outcomes because the university is better able to meet its students' needs. In order to ensure that these institutions remain at the forefront of their respective fields, it is important for leadership and management teams to be innovative and forward-thinking.
Published: 2023

45. An easily-synthesized low carbon ionic liquid functionalized metal-organic framework composite material to remove Congo red from water

Author: Li, H., Fei, J., Chen, S., Jones, K.C., Li, S., Chen, W., Liang, Y., Li, H., Fei, J., Chen, S., Jones, K.C., Li, S., Chen, W., and Liang, Y.
Abstract: Congo red (CR) is documented as a typical azo dye compound that is widely used for industrial activities such as papermaking, textiles, leather and additives production, making it a main component of COD contaminants in industrial wastewaters. Excessive releases of CR have resulted in adverse impacts on water environments and ecological systems due to its non-biodegradable, toxic and carcinogenic properties. Therefore, the removal of CR from water environments is of important for wastewater treatment. Previous studies have proved that metal-organic frameworks (MOFs) were feasible for CR adsorption, but less stable in water environments. Several functionalized materials have therefore been used to produce MOF-derived composite material for better performance. To simplify the synthesis processes and reduce the energy consumption, an ionic liquid (IL) was used in this study for the synthesis of [BMIM][PF6]/ZIF-8 (BP/Z) composite material. The morphological structure of this material remained stable after the incorporation of IL. The equilibrium time of CR adsorption was 90 min with a maximum adsorption capacity of 1463 mg/g. Isotherm and kinetic studies revealed that the adsorption process was better described by Langmuir and pseudo-second-order model. Our results also presented that the IL/MOF composite material can be used within pH 5 and 6 with the presence of Na+, K+, Mg2+, Ca2+, Cl− and SO42−. It was also proved that the novel IL/MOF composites in this study have great potential to adsorb and remove organic dyes from water.
Published: 2023

46. ATS Core Curriculum 2022. Pediatric Pulmonary Medicine: Updates in pediatric neuromuscular disease

Author: Carmen Leon‐Astudillo, Caroline U. A. Okorie, Michael Y. McCown, Fei J. Dy, Sandeep Puranik, Moshe Prero, Mai K. ElMallah, Lauren Treat, and Jane E. Gross
Subjects: Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health
Published: 2023

47. Procurement system selection in the construction sector: a literature review and future research agenda for the digital age

Author: Zhao, Nan, Ying, Fei J., and Tookey, John
Abstract: Recognising the importance of selecting a suitable procurement system, interest in procurement system selection has drawn immense attention in the construction sector. Despite the advanced decision supporting techniques and advocation of the importance of utilising PSS in the literature, PSS implementation appears to be at the nascent stage, with extant studies too fragmented to reveal the practical implications. This paper provides a holistic picture of existing research and identifies future research agenda in procurement system selection (PSS) within the context of construction engineering and management (CEM). An extensive literature review of a total of 198 peer-reviewed journal papers, using a mixed quantitative and qualitative method for integration and analysis, is carried out to shed light on the trend to explore collaborative procurements. Accordingly, a research framework with action points at industry, organisation, and project levels is proposed.
Published: 2024
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48. Knowledge management in the shipping industry : the effects of human mobility on the organisational knowledge base and effective knowledge transfer practices : a perspective from China

Author: Fei, J
Abstract: The severe shortage of skilled and qualified personnel in the shipping industry has been addressed in various ways. This thesis looks into the issue from a new perspective where high mobility in the shipping industry is seen as a vehicle of knowledge flows that can be used for knowledge transfer. The rationality of this approach is that knowledge has been considered the most important asset that an organisation can possibly use as a leverage to gain competitive advantage, and the fact that knowledge management practices have been successfully applied into industries such as the pharmaceutical, oil and gas industries where skill shortages have been a major obstacle for development. It is argued that while an organisation cannot stop personnel leaving, it is possible, by utilising effective knowledge management practices, to retain part of the knowledge held by such personnel. As there is a dearth of research on knowledge management in the shipping industry, the objective of this thesis is to explore the appropriate application of knowledge management practices to the industry. This is achieved by (i) identifying the components of an organisational knowledge base (OKB); (ii) examining the effects of human mobility on the OKB; and (iii) investigating management practices for effective knowledge transfer in the shipping industry. A conceptual framework is established to address these three research questions. In order to empirically validate the research models, a sample of Chinese shipping companies (ship owners, manning companies, ship managers) was selected for a mail survey. The mail survey generated a 60 per cent response rate in which 166 valid questionnaires were returned. A wide range of statistical techniques such as reliability, t-test, ANOVA, Pearson‚ÄövÑvºs correlation, factor analysis (PCA), and multiple regression, was employed to analyse the data collected from the mail survey. The study made a number of findings. First, an OKB consists of fourteen knowledge components with four dimensions, and the perceived importance of these components vary according to business sectors, fleet sizes, and respondents‚ÄövÑvº total work experience. Secondly, all personnel movements except those of ratings are considered critical to the OKB. Such perceived effects can be predicted by two of the three factors regarding current workforce stability (total preferred workforce, total stability and optimism). Finally, effective knowledge transfer practices are comprised of fourteen elements from three main management domains, that is, culture, leadership, and technology. A multiple regression analysis finds that current management practices (a four-factor solution) do not explain perceived effective knowledge transfer practices. It is found, however, that some elements are affected by the establishment of a knowledge management department or the designation of a chief knowledge officer, and that there are correlations between information communication technology related practices and the current/preferred means of communication. It is suggested that through the identification of the composition of an OKB, an organisation should provide a supportive culture, strong leadership, and relevant resources to manage its knowledge asset through effective knowledge transfer, given the impacts that high human mobility has on the OKB
Published: 2023
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49. Online 222 Rn removal by cryogenic distillation in the XENON100 experiment

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Gangi, P. Di, Giovanni, A. Di, Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Gallo Rosso, A., Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M.-C., Pizzella, V., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., dos Santos, J. M. F., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., Cristescu, I., and XENON Collaboration
Published: 2017
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50. Removing krypton from xenon by cryogenic distillation to the ppq level

Author: Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Calvén, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., Perio, P. de, Gangi, P. Di, Giovanni, A. Di, Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Gallo Rosso, A., Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Huhmann, C., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M.-C., Pizzella, V., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., Zhang, Y., Cristescu, I., and XENON Collaboration
Published: 2017
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