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Your search keyword '"Huang, L. R."' showing total 102 results
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102 results on '"Huang, L. R."'

1. Timing calibration of the APOLLO experiment

Author

Battat, J. B. R., Huang, L. R., Schlerman, E., Murphy, Jr, T. W., Colmenares, N. R., and Davis, R.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology
Abstract

The Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) began millimeter-precision ranging to the Moon in 2006. Until now, a comprehensive validation of APOLLO system range accuracy has not been possible because of centimeter-scale deficiencies in computational models of the Earth-Moon range, and because APOLLO lacked an internal timing calibration system. Here, we report on the development of a system that enables in-situ calibration of the timing response of the APOLLO apparatus, simultaneous with lunar range measurements. The system was installed in August 2016. Preliminary results show that the APOLLO system can provide lunar range measurements with millimeter accuracy., Comment: 6 pages, 4 figures. Proceedings of the 20th International Workshop on Laser Ranging, Potsdam, Germany, October 9--14, 2016

Published
2017

2. An absolute calibration system for millimeter-accuracy APOLLO measurements

Author

Adelberger, E. G., Battat, J. B. R., Birkmeier, K. J., Colmenares, N. R., Davis, R., Hoyle, C. D., Huang, L. R., McMillan, R. J., Murphy Jr., T. W., Schlerman, E., Skrobol, C., Stubbs, C. W., and Zach, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology
Abstract

Lunar laser ranging provides a number of leading experimental tests of gravitation -- important in our quest to unify General Relativity and the Standard Model of physics. The Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) has for years achieved median range precision at the ~2 mm level. Yet residuals in model-measurement comparisons are an order-of-magnitude larger, raising the question of whether the ranging data are not nearly as accurate as they are precise, or if the models are incomplete or ill-conditioned. This paper describes a new absolute calibration system (ACS) intended both as a tool for exposing and eliminating sources of systematic error, and also as a means to directly calibrate ranging data in-situ. The system consists of a high-repetition-rate (80 MHz) laser emitting short (< 10 ps) pulses that are locked to a cesium clock. In essence, the ACS delivers photons to the APOLLO detector at exquisitely well-defined time intervals as a "truth" input against which APOLLO's timing performance may be judged and corrected. Preliminary analysis indicates no inaccuracies in APOLLO data beyond the ~3 mm level, suggesting that historical APOLLO data are of high quality and motivating continued work on model capabilities. The ACS provides the means to deliver APOLLO data both accurate and precise below the 2 mm level., Comment: 21 pages, 10 figures, submitted to Classical and Quantum Gravity

Published
2017
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9. Circular RNA circRNA_0000285 promotes cervical cancer development by regulating FUS.

Author

CHEN, R. X., LIU, H. L., YANG, L. L., KANG, F. H., XIN, L. P., HUANG, L.-R., GUO, Q. F., and WANG, Y. L.

Abstract

OBJECTIVE: Recently, the vital role of circular RNAs (circRNAs) in human diseases has attracted much attention. The aim of this research was to verify the potential role of circRNA_0000285 in the development of cervical cancer (CC). PATIENTS AND METHODS: CircRNA_0000285 expression in both CC cells and tissue samples was detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Functional experiments were performed, including cell counting kit-8 (CCK-8) assay, cell cycle assay and transwell assay. Meanwhile, the underlying mechanism was explored through qRT-PCR and Western blot assay, respectively. In addition, the function of circRNA_0000285 was identified in vivo. RESULTS: CircRNA_0000285 expression level was significantly higher in CC samples than that of corresponding normal tissues. Moreover, the growth and migration abilities of CC cells were significantly inhibited after circRNA_0000285 was knocked down in vitro. Furthermore, the expression of FUS was remarkably down-regulated after knockdown of circRNA_0000285. Subsequent results indicated that the expression level of FUS was positively correlated with the expression of circRNA_0000285 in CC tissues. In addition, the knockdown of circRNA_0000285 significantly inhibited the formation and metastasis of CC in nude mice. CONCLUSIONS: CircRNA_0000285 could enhance the proliferation and metastasis of CC by up-regulating FUS, which might be a potential therapeutic target for CC treatment. [ABSTRACT FROM AUTHOR]

Published
2019

13. An absolute calibration system for millimeter-accuracy APOLLO measurements

Author

Adelberger, E G, primary, Battat, J B R, additional, Birkmeier, K J, additional, Colmenares, N R, additional, Davis, R, additional, Hoyle, C D, additional, Huang, L R, additional, McMillan, R J, additional, Murphy, T W, additional, Schlerman, E, additional, Skrobol, C, additional, Stubbs, C W, additional, and Zach, A, additional

Published
2017
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18. 340 T CELLS REDIRECTED BY A CHIMERIC ANTIGEN RECEPTOR RECOGNIZING HBsAg EFFICIENTLY CONTROL HBV IN VIVO IN TRANSGENIC MICE

Author

Krebs, K., primary, Böttinger, N., additional, Huang, L.-R., additional, Chmielewski, M., additional, Arzberger, S., additional, Gasteiger, G., additional, Schmitt, E., additional, Bohne, F., additional, Aichler, M., additional, Uckert, W., additional, Abken, H., additional, Heikenwälder, M., additional, Knolle, P., additional, and Protzer, U., additional

Published
2013
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29. Performance of a novel VUV bending magnet beamline

Author

Song, Y.F., primary, Ma, C.-I, additional, Hsieh, T.-F., additional, Huang, L.-R., additional, Chung, S.-C., additional, Cheng, N.-F., additional, Hsiung, G.Y., additional, Wang, D.-J., additional, Chen, C.T., additional, and Tsang, K.-L., additional

Published
2001
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30. Performance of an elliptically polarized undulator beamline

Author

Chung, S.-C., primary, Chen, J., additional, Huang, L.-R., additional, Wu, R.T., additional, Chen, C.-C., additional, Cheng, N.-F., additional, Chuang, J.M., additional, Tseng, P.-C., additional, Huang, D.J., additional, Chang, C.F., additional, Perng, S.-Y., additional, Chen, C.T., additional, and Tsang, K.-L., additional

Published
2001
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38. Performance of the 1 m Seya–Namioka monochromator beam line at SRRC

Author

Tseng, P.‐C., primary, Hsieh, T.‐F., additional, Song, Y.‐F., additional, Lee, K.‐D., additional, Chung, S.‐C., additional, Chen, C.‐I., additional, Lin, H.‐F., additional, Dann, T.‐E., additional, Huang, L.‐R., additional, Chen, C.‐C., additional, Chuang, J.‐M., additional, Tsang, K.‐L., additional, and Chang, C.‐N., additional

Published
1995
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41. Protective effect of excitatory amino acids on cold-restraint stress-induced gastric ulcers in mice: role of cyclic nucleotides.

Author

Chen, Sheng-Hsuan, Lei, Hsiao, Huang, Lih, Tsai, Li, Chen, S H, Lei, H L, Huang, L R, and Tsai, L H

Abstract

Previous studies have shown that excitatory amino acids (EAAs) and their receptors may play important roles in the mammalian enteric system. In this study, we investigated whether EEAs, including L-glutamate (L-Glu) and subtypes N-methyl-D-aspartate (NMDA), kainic acid (KA), and quisqualic acid (QA), reduce cyclic AMP (cAMP) levels and play a role in protecting gastric lesions in cold-restraint stress (CRS) mice. First, we found that dose-dependent administration of four selected EAAs significantly attenuated the increase of cAMP content and exhibited a protective effect on the development of gastric lesions induced by CRS. Second, CRS treatment exhibited a decrease of cGMP content and an increase of cAMP content with marked time-dependent changes, and a high cAMP/cGMP ratio in mice gastric mucosa. Third, pretreatment with 0.25 microg/kg or 0.5 microg/kg dibutyryl cGMP (db-cGMP) exhibited protective effects on CRS-induced gastric lesions, with preventive ratios of 24.61% and 35.32%, respectively. Moreover, db-cGMP at 0.5 microgg/kg significantly attenuated the increase in both cAMP content and the cAMP/cGMP ratio in CRS-treated gastric mucosa. In contrast, db-cAMP exhibited no protective effect, and significantly decreased cGMP content and increased the cAMP/cGMP ratio. These results suggest that EAAs significantly reduce CRS-induced gastric ulcers in mice. The possible mechanism of the antiulcer activity of EAAs may be related to a decrease in the cAMP content in the gastric mucosa of mice. In addition, an increase of the cAMP/cGMP ratio significantly involved in CRS-induced gastric ulcer formation in mice. [ABSTRACT FROM AUTHOR]

Published
2001
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44. Self-assembled InAs/GaAs quantum dot molecules with InxGa1-xAs strain-reducing layer

Author

Yu, Y., Huang, L. R., Tian, P., and Huang, D. X.

Abstract

Self-assembled lateral aligned InAs quantum dot molecules (QDMs) with InxGa1-xAs strain-reducing layer are grown on GaAs substrate by metal-organic chemical vapor deposition. The effects of growth temperature and In content of InxGa1-xAs on the structural and optical properties of QDMs are investigated by using atomic force microscopy and photoluminescence. It is found that through appropriately selecting growth parameters, QDMs composed of two closely spaced InAs QDs are formed, and a redshift of emission wavelength and wideband photoluminescence spectra of QDMs are observed, which make QDM a potential candidate for broadband optical devices.

Published
2010
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50. ChemInform Abstract: Unit Construction in the Formation of Metal Clusters — Investigation on Metal Cluster Compounds Containing Fe2S2(CO)6Units

Author

ZHUANG, B.‐T., PAN, B.‐H., HUANG, L.‐R., HE, L.‐J., CHEN, P.‐C., SUN, H.‐F., and PAN, G.‐H.

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
1998
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