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15,891 results on '"University of Illinois at Urbana-Champaign [Urbana]"'

1. Measurement of double-polarization asymmetries in the quasi-elastic He^→ 3 (e^→, e′ p) process

Author

Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany, University of Virginia, Charlottesville, VA 22908, USA, University of New Hampshire, Durham, NH 03824, USA, Rutgers University, New Brunswick, NJ 08901, USA, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA, Kent State University, Kent, OH 44242, USA, Glasgow University, Glasgow G12 8QQ, Scotland, United Kingdom, The College of William and Mary, Williamsburg, VA 23187, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Florida International University, Miami, FL 33181, USA, Old Dominion University, Norfolk, VA 23529, USA, Hampton University, Hampton, VA 23669, USA, Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy, Institute for Theoretical Physics and Astronomy, Vilnius University, LT-01108 Vilnius, Lithuania, University of Kentucky, Lexington, KY 40506, USA, Temple University, Philadelphia, PA 19122, USA, Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy, Duke University, Durham, NC 27708, USA, Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine, M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland, Longwood College, Farmville, VA 23909, USA, Cairo University, Cairo, Giza 12613, Egypt, Christopher Newport University, Newport News, VA 23606, USA, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan, Seoul National University, Seoul, Republic of Korea, INFN-Pisa, I-56127 Pisa, Italy, Ohio University, Athens, OH 45701, USA, Huangshan University, People's Republic of China, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Tel Aviv University, Tel Aviv 69978, Israel, Norfolk State University, Norfolk, VA 23504, USA, University of Connecticut, Storrs, CT 06269, USA, Institute for Theoretical Physics, University of Hannover, D-30167 Hannover, Germany, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA, Old Dominion University, Norfolk, VA 23529, USA, Northern Michigan University, Marquette, MI 49855, USA, Yerevan Physics Institute, Yerevan, Armenia, Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, George Washington University, Washington, DC 20052, USA, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Mihovilovič , M., Jin, G., Long, E., Zhang, Y.-W., Allada, K., Anderson, B., Annand, J.R.M., Averett, T., Bertozzi, W., Boeglin, W., Bradshaw, P., Camsonne, A., Canan, M., Cates, G.D., Chen, C., Chen, J.P., Chudakov, E., De Leo, R., Deng, X., Deltuva, A., Deur, A., Dutta, C., El Fassi, L., Flay, D., Frullani, S., Garibaldi, F., Gao, H., Gilad, S., Gilman, R., Glamazdin, O., Golak, J., Golge, S., Gomez, J., Hansen, O., Higinbotham, D.W., Holmstrom, T., Huang, J., Ibrahim, H., de Jager, C.W., Jensen, E., Jiang, X., Jones, M., Kamada, H., Kang, H., Katich, J., Khanal, H.P., Kievsky, A., King, P., Korsch, W., LeRose, J., Lindgren, R., Lu, H.-J., Luo, W., Marcucci, L.E., Markowitz, P., Meziane, M., Michaels, R., Moffit, B., Monaghan, P., Muangma, N., Nanda, S., Norum, B.E., Pan, K., Parno, D.S., Piasetzky, E., Posik, M., Punjabi, V., Puckett, A.J.R., Qian, X., Qiang, Y., Qui, X., Riordan, S., Saha, A., Sauer, P.U., Sawatzky, B., Schiavilla, R., Schoenrock, B., Shabestari, M., Shahinyan, A., Širca, S., Skibi ́nski, R., St. John, J., Subedi, R., Sulkosky, V., Tireman, W., Tobias, W.A., Topolnicki, K., Urciuoli, G.M., Viviani, M., Wang, D., Wang, K., Wang, Y., Watson, J., Wojtsekhowski, B., Witała, H., Ye, Z., Zhan, X., Zhang, Y., Zheng, X., Zhao, B., Zhu, L., Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany, University of Virginia, Charlottesville, VA 22908, USA, University of New Hampshire, Durham, NH 03824, USA, Rutgers University, New Brunswick, NJ 08901, USA, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA, Kent State University, Kent, OH 44242, USA, Glasgow University, Glasgow G12 8QQ, Scotland, United Kingdom, The College of William and Mary, Williamsburg, VA 23187, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Florida International University, Miami, FL 33181, USA, Old Dominion University, Norfolk, VA 23529, USA, Hampton University, Hampton, VA 23669, USA, Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy, Institute for Theoretical Physics and Astronomy, Vilnius University, LT-01108 Vilnius, Lithuania, University of Kentucky, Lexington, KY 40506, USA, Temple University, Philadelphia, PA 19122, USA, Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy, Duke University, Durham, NC 27708, USA, Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine, M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland, Longwood College, Farmville, VA 23909, USA, Cairo University, Cairo, Giza 12613, Egypt, Christopher Newport University, Newport News, VA 23606, USA, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan, Seoul National University, Seoul, Republic of Korea, INFN-Pisa, I-56127 Pisa, Italy, Ohio University, Athens, OH 45701, USA, Huangshan University, People's Republic of China, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Tel Aviv University, Tel Aviv 69978, Israel, Norfolk State University, Norfolk, VA 23504, USA, University of Connecticut, Storrs, CT 06269, USA, Institute for Theoretical Physics, University of Hannover, D-30167 Hannover, Germany, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA, Old Dominion University, Norfolk, VA 23529, USA, Northern Michigan University, Marquette, MI 49855, USA, Yerevan Physics Institute, Yerevan, Armenia, Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia, George Washington University, Washington, DC 20052, USA, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Mihovilovič , M., Jin, G., Long, E., Zhang, Y.-W., Allada, K., Anderson, B., Annand, J.R.M., Averett, T., Bertozzi, W., Boeglin, W., Bradshaw, P., Camsonne, A., Canan, M., Cates, G.D., Chen, C., Chen, J.P., Chudakov, E., De Leo, R., Deng, X., Deltuva, A., Deur, A., Dutta, C., El Fassi, L., Flay, D., Frullani, S., Garibaldi, F., Gao, H., Gilad, S., Gilman, R., Glamazdin, O., Golak, J., Golge, S., Gomez, J., Hansen, O., Higinbotham, D.W., Holmstrom, T., Huang, J., Ibrahim, H., de Jager, C.W., Jensen, E., Jiang, X., Jones, M., Kamada, H., Kang, H., Katich, J., Khanal, H.P., Kievsky, A., King, P., Korsch, W., LeRose, J., Lindgren, R., Lu, H.-J., Luo, W., Marcucci, L.E., Markowitz, P., Meziane, M., Michaels, R., Moffit, B., Monaghan, P., Muangma, N., Nanda, S., Norum, B.E., Pan, K., Parno, D.S., Piasetzky, E., Posik, M., Punjabi, V., Puckett, A.J.R., Qian, X., Qiang, Y., Qui, X., Riordan, S., Saha, A., Sauer, P.U., Sawatzky, B., Schiavilla, R., Schoenrock, B., Shabestari, M., Shahinyan, A., Širca, S., Skibi ́nski, R., St. John, J., Subedi, R., Sulkosky, V., Tireman, W., Tobias, W.A., Topolnicki, K., Urciuoli, G.M., Viviani, M., Wang, D., Wang, K., Wang, Y., Watson, J., Wojtsekhowski, B., Witała, H., Ye, Z., Zhan, X., Zhang, Y., Zheng, X., Zhao, B., and Zhu, L.

Abstract

type:Journal Article, We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of 3Heproceeding to pdand ppnfinal states, performed in quasi-elastic kinematics at Q2=0.25 (GeV/c)2for missing momenta up to 250 MeV/c. These observables represent highly sensitive tools to investigate the electromagnetic and spin structure of 3Heand the relative importance of two-and three-body effects involved in the breakup reaction dynamics. The measured asymmetries cannot be satisfactorily reproduced by state-of-the-art calculations of 3Heunless their three-body segment is adjusted, indicating that the spin-dependent part of the nuclear interaction governing the three-body breakup process is much smaller than previously thought., source:https://doi.org/10.1016/j.physletb.2018.10.063

Published
2020

3. Effects of the antimicrobial tylosin on the microbial community structure of an anaerobic sequencing batch reactor

Author

Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275 ; Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275., Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, Department of Civil Engineering, University of Nebraska at Lincoln, Lincoln, Nebraska, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dubendorf, Switzerland ; Institute of Environmental Engineering, ETH Zurich, Zurich, Switzerland, Shimada, Toshio, Li, Xu, Zilles, Julie L., Morgenroth, Eberhard, Raskin, Lutgarde, Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275 ; Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275., Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, Department of Civil Engineering, University of Nebraska at Lincoln, Lincoln, Nebraska, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dubendorf, Switzerland ; Institute of Environmental Engineering, ETH Zurich, Zurich, Switzerland, Shimada, Toshio, Li, Xu, Zilles, Julie L., Morgenroth, Eberhard, and Raskin, Lutgarde

Abstract

The effects of the antimicrobial tylosin on a methanogenic microbial community were studied in a glucose-fed laboratory-scale anaerobic sequencing batch reactor (ASBR) exposed to stepwise increases of tylosin (0, 1.67, and 167???mg/L). The microbial community structure was determined using quantitative fluorescence in situ hybridization (FISH) and phylogenetic analyses of bacterial 16S ribosomal RNA (rRNA) gene clone libraries of biomass samples. During the periods without tylosin addition and with an influent tylosin concentration of 1.67???mg/L, 16S rRNA gene sequences related to Syntrophobacter were detected and the relative abundance of Methanosaeta species was high. During the highest tylosin dose of 167???mg/L, 16S rRNA gene sequences related to Syntrophobacter species were not detected and the relative abundance of Methanosaeta decreased considerably. Throughout the experimental period, Propionibacteriaceae and high GC Gram-positive bacteria were present, based on 16S rRNA gene sequences and FISH analyses, respectively. The accumulation of propionate and subsequent reactor failure after long-term exposure to tylosin are attributed to the direct inhibition of propionate-oxidizing syntrophic bacteria closely related to Syntrophobacter and the indirect inhibition of Methanosaeta by high propionate concentrations and low pH. Biotechnol. Bioeng. 2011;108: 296???305. ?? 2010 Wiley Periodicals, Inc.

Published
2011

4. An approximation algorithm for counting contingency tables

Author

Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1043 ; Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1043, Department of Computer Science, Hebrew University of Jerusalem, Givat Ram Campus, 91904, Israel, Department of Mathematics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, Barvinok, Alexander, Luria, Zur, Samorodnitsky, Alex, Yong, Alexander, Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1043 ; Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1043, Department of Computer Science, Hebrew University of Jerusalem, Givat Ram Campus, 91904, Israel, Department of Mathematics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, Barvinok, Alexander, Luria, Zur, Samorodnitsky, Alex, and Yong, Alexander

Abstract

We present a randomized approximation algorithm for counting contingency tables , m × n non-negative integer matrices with given row sums R = ( r 1 ,…, r m ) and column sums C = ( c 1 ,…, c n ). We define smooth margins ( R , C ) in terms of the typical table and prove that for such margins the algorithm has quasi-polynomial N O (ln N ) complexity, where N = r 1 + … + r m = c 1 + … + c n . Various classes of margins are smooth, e.g., when m = O ( n ), n = O ( m ) and the ratios between the largest and the smallest row sums as well as between the largest and the smallest column sums are strictly smaller than the golden ratio (1 + $ {sqrt{5}} $ )/2 ≈ 1.618. The algorithm builds on Monte Carlo integration and sampling algorithms for log-concave densities, the matrix scaling algorithm, the permanent approximation algorithm, and an integral representation for the number of contingency tables. © 2010 Wiley Periodicals, Inc. Random Struct. Alg., 2010

Published
2010

5. Inhibitory effects of the macrolide antimicrobial tylosin on anaerobic treatment

Author

Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275 ; Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275., Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, Shimada, Toshio, Zilles, Julie L., Morgenroth, Eberhard, Raskin, Lutgarde, Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275 ; Department of Civil and Environmental Engineering, University of Michigan, 107 EWRE Building, 1351 Beal Ave, Ann Arbor, Michigan 48109-2125; telephone: 734-647-6920; fax: 734-763-2275., Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, Shimada, Toshio, Zilles, Julie L., Morgenroth, Eberhard, and Raskin, Lutgarde

Abstract

A laboratory-scale anaerobic sequencing batch reactor (ASBR) was operated using a glucose-based synthetic wastewater to study the effects of tylosin, a macrolide antimicrobial commonly used in swine production, on treatment performance. The experimental period was divided into three consecutive phases with different influent tylosin concentrations (0, 1.67, and 167 mg/L). The addition of 1.67 mg/L tylosin to the reactor had negligible effects on the overall treatment performance, that is, total methane production and effluent chemical oxygen demand did not change significantly ( P < 0.05), yet analyses of individual ASBR cycles revealed a decrease in the rates of both methane production and propionate uptake after tylosin was added. The addition of 167 mg/L tylosin to the reactor resulted in a gradual decrease in methane production and the accumulation of propionate and acetate. Subsequent inhibition of methanogenesis was attributed to a decrease in the pH of the reactor. After the addition of 167 mg/L tylosin to the reactor, an initial decrease in the rate of glucose uptake during the ASBR cycle followed by a gradual recovery was observed. In batch tests, the specific biogas production with the substrate butyrate was completely inhibited in the presence of tylosin. This study indicated that tylosin inhibited propionate- and butyrate-oxidizing syntrophic bacteria and fermenting bacteria resulting in unfavorable effects on methanogenesis. Biotechnol. Biotechnol. Bioeng. 2008;101: 73–82. © 2008 Wiley Periodicals, Inc.

Published
2008

6. The Open Grid Computing Environments collaboration: portlets and services for science gateways

Author

School of Information, University of Michigan, Ann Arbor, MI 48109-1107, U.S.A., National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61301, U.S.A., Department of Computer Science, Indiana University, Bloomington, IN 47404, U.S.A., Department of Computer Science, Indiana University, Bloomington, IN 47404, U.S.A. ; Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A., Computation Institute, University of Chicago, Chicago, IL 60637, U.S.A., Mathematics and Computer Science Division, Argonne National Laboratory, Argonne, IL 60439, U.S.A., Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A., Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A. ; Community Grids Laboratory, Indiana University, 501 N. Morton, Suite 224, Bloomington, IN 47404, U.S.A., Texas Advanced Computing Center, University of Texas, Austin, TX 78758-4497, U.S.A., Department of Computer Science, San Diego State University, San Diego, CA 92182, U.S.A., Alameda, Jay, Christie, Marcus, Fox, Geoffrey, Futrelle, Joe, Gannon, Dennis, Hategan, Mihael, Kandaswamy, Gopi, von Laszewski, Gregor, Nacar, Mehmet A., Pierce, Marlon, Roberts, Eric, Severance, Charles, Thomas, Mary, School of Information, University of Michigan, Ann Arbor, MI 48109-1107, U.S.A., National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61301, U.S.A., Department of Computer Science, Indiana University, Bloomington, IN 47404, U.S.A., Department of Computer Science, Indiana University, Bloomington, IN 47404, U.S.A. ; Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A., Computation Institute, University of Chicago, Chicago, IL 60637, U.S.A., Mathematics and Computer Science Division, Argonne National Laboratory, Argonne, IL 60439, U.S.A., Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A., Community Grids Laboratory, Indiana University, Bloomington, IN 47404, U.S.A. ; Community Grids Laboratory, Indiana University, 501 N. Morton, Suite 224, Bloomington, IN 47404, U.S.A., Texas Advanced Computing Center, University of Texas, Austin, TX 78758-4497, U.S.A., Department of Computer Science, San Diego State University, San Diego, CA 92182, U.S.A., Alameda, Jay, Christie, Marcus, Fox, Geoffrey, Futrelle, Joe, Gannon, Dennis, Hategan, Mihael, Kandaswamy, Gopi, von Laszewski, Gregor, Nacar, Mehmet A., Pierce, Marlon, Roberts, Eric, Severance, Charles, and Thomas, Mary

Abstract

We review the efforts of the Open Grid Computing Environments collaboration. By adopting a general three-tiered architecture based on common standards for portlets and Grid Web services, we can deliver numerous capabilities to science gateways from our diverse constituent efforts. In this paper, we discuss our support for standards-based Grid portlets using the Velocity development environment. Our Grid portlets are based on abstraction layers provided by the Java CoG kit, which hide the differences of different Grid toolkits. Sophisticated services are decoupled from the portal container using Web service strategies. We describe advance information, semantic data, collaboration, and science application services developed by our consortium. Copyright © 2006 John Wiley & Sons, Ltd.

Published
2007

7. De Sitter Holography and the Cosmic Microwave Background

Author

Michigan Center for Theoretical Physics, Randall Laboratory, Department of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA, Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Ann Arbor, Larsen, Finn, Schaar, Jan Pieter van der, Leigh, Robert G., Michigan Center for Theoretical Physics, Randall Laboratory, Department of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA, Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Ann Arbor, Larsen, Finn, Schaar, Jan Pieter van der, and Leigh, Robert G.

Abstract

We interpret cosmological evolution holographically as a renormalisation group flow in a dual euclidean field theory, as suggested by the conjectured dS/CFT correspondence. Inflation is described by perturbing around the infra-red fixed point of the dual field theory. The spectrum of the cosmic microwave background radiation is determined in terms of scaling violations in the field theory. The dark energy allows similar, albeit less predictive, considerations. We discuss the cosmological fine-tuning problems from the holographic perspective.

Published
2006

8. Flow modulation of a planar free shear layer with large bubbles--direct numerical simulations

Author

Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109, U.S.A., Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, U.S.A., Taeibi-Rahni, M., Loth, Eric, Tryggvason, Gretar, Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109, U.S.A., Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, U.S.A., Taeibi-Rahni, M., Loth, Eric, and Tryggvason, Gretar

Abstract

The flow of a planar free shear layer with cylindrical bubbles is simulated using a finite difference/front tracking scheme. This approach allows direct numerical simulation of the multiphase flow by wholly incorporating the local bubble flow field in conjunction with the large scale vortical structures of the liquid. The role of large bubbles in modifying low Reynolds number (~ 250) shear flow structures is investigated, specifically for bubbles whose diameter approaches the scale of the largest liquid eddies. The results indicate that duration of eddy crossing is the main mechanism for flow modulation, which is typically characterized by decreased vortex coherency and size, modified fluctuation statistics and significant variations in pairing/merging phenomena. The comparison of fluctuating statistics and flow field visualization also allowed qualitative discrimination between the modulation of the non-linear eddy dynamics and fluctuations due simply to the random bubble induced perturbations.

Published
2006

9. Bifurcation of self-folded polygonal bilayers

Author

Hsia, K. [Department of Mechanical Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, USA, Departments of Mechanical Engineering and Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA]

Published
2017
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10. Overall energy conversion efficiency of a photosynthetic vesicle

Author

Schulten, Klaus [Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, United States, Department of Physics, University of Illinois at Urbana-Champaign, Urbana, United States, Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, Urbana, United States] (ORCID:0000000171929632)

Published
2016
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11. Characterization of Bacillus subtilis Colony Biofilms via Mass Spectrometry and Fluorescence Imaging

Author

Sweedler, Jonathan [Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States, Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States]

Published
2016
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15. Block Copolymer Assembly on Nanoscale Patterns of Polymer Brushes Formed by Electrohydrodynamic Jet Printing

Author

Rogers, John [Department of Materials Science and Engineering, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States]

Published
2014
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16. Towards a Computational Model of a Methane Producing Archaeum

Author

Luthey-Schulten, Zaida [Department of Chemistry, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA; Center for Biophysics and Computational Biology, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA; Department of Physics, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA]

Published
2014
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17. Soft, skin-interfaced microfluidic systems with integrated immunoassays, fluorometric sensors and impedance measurement capabilities

Author

John A. Rogers, Min-Ho Seo, Inkyu Park, Sung-Uk Lee, Sunghyun Han, Boram Lee, Yurina Sekine, Sung Soo Kwak, Gyungmin Park, Paul V. Braun, Stephen P. Lee, Joonchul Shin, Seon Hee Seo, Jonathan T. Reeder, Aurélie Hourlier-Fargette, Alexander J. Aranyosi, Sungbong Kim, Geumbee Lee, Jeffrey B. Model, Jahyun Koo, Hyoyoung Jeong, Yong Suk Oh, Roozbeh Ghaffari, Hyo Il Jung, Seongbin Jo, Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA, Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, Department of Medicine, Konkuk University, Seoul 05029, Republic of Korea, Northwestern University [Evanston], Nano Hybrid Technology Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea, ATF Technology Development Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea, Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Center for Electronic Materials, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea, Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea, Epicore Biosystems, Inc. Cambridge, MA 02139, USA, Department of Chemical and Biomolecular Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, School of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea, and School of Biomedical Engineering, Korea University, Seoul 02841, Republic of Korea

Subjects
Microfluidics, 02 engineering and technology, Biosensing Techniques, MESH: Microfluidics, Engineering, Lab-On-A-Chip Devices, Electric Impedance, Fluorometry, Biomarker Analysis, Sweat, Wearable technology, Skin, MESH: Wearable Electronic Devices, Immunoassay, 0303 health sciences, Galvanic skin response, Multidisciplinary, integumentary system, Focused Impedance Measurement, Soft materials, MESH: Sweat, Healthcare, Equipment Design, MESH: Lab-On-A-Chip Devices, 021001 nanoscience & nanotechnology, Dielectric Spectroscopy, Physical Sciences, [SDV.IB]Life Sciences [q-bio]/Bioengineering, 0210 nano-technology, MESH: Immunoassay, Computer hardware, MESH: Biosensing Techniques, Context (language use), MESH: Dielectric Spectroscopy, 03 medical and health sciences, Wearable Electronic Devices, Epidermal devices, MESH: Skin, Humans, MESH: Electric Impedance, 030304 developmental biology, MESH: Humans, business.industry, MESH: Fluorometry, Ascorbic acid, Key features, Sweat cortisol, ComputingMethodologies_PATTERNRECOGNITION, business, MESH: Equipment Design
Abstract

Significance Skin-interfaced, wireless devices for clinical-grade monitoring of physiological parameters are of growing interest for uses that range from healthcare to sports performance. This paper introduces a multifunctional skin-mounted microfluidic platform for capture and biomarker analysis of microliter volumes of sweat, a biofluid that can be collected noninvasively, with potential relevance in biophysical sensing. The focus is on colorimetric and digital assessments of a collection of parameters related to stress, including concentrations of vitamin C, cortisol, and glucose, along with quantitative measurements of sweat rate and galvanic skin response. The results represent important additions to a portfolio of emerging capabilities in skin-interfaced technologies for physiological monitoring, with particular relevance to conditions that follow from unhealthy levels of physical and mental stress., Soft microfluidic systems that capture, store, and perform biomarker analysis of microliter volumes of sweat, in situ, as it emerges from the surface of the skin, represent an emerging class of wearable technology with powerful capabilities that complement those of traditional biophysical sensing devices. Recent work establishes applications in the real-time characterization of sweat dynamics and sweat chemistry in the context of sports performance and healthcare diagnostics. This paper presents a collection of advances in biochemical sensors and microfluidic designs that support multimodal operation in the monitoring of physiological signatures directly correlated to physical and mental stresses. These wireless, battery-free, skin-interfaced devices combine lateral flow immunoassays for cortisol, fluorometric assays for glucose and ascorbic acid (vitamin C), and digital tracking of skin galvanic responses. Systematic benchtop evaluations and field studies on human subjects highlight the key features of this platform for the continuous, noninvasive monitoring of biochemical and biophysical correlates of the stress state.

Published
2020

18. Scalable molecular dynamics on CPU and GPU architectures with NAMD

Author

Ryan McGreevy, Julio D.C. Maia, David J. Hardy, Giacomo Fiorin, Zaida Luthey-Schulten, Aleksei Aksimentiev, Emad Tajkhorshid, James C. Phillips, John E. Stone, Yi Wang, Benoît Roux, João V. Ribeiro, Wei Jiang, Christophe Chipot, Robert D. Skeel, Ronak Buch, Jérôme Hénin, Abhishek Singharoy, Rafael C. Bernardi, Brian K. Radak, Marcelo C. R. Melo, Klaus Schulten, Laxmikant V. Kale, TCBG, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign [Urbana], University of Illinois System-University of Illinois System-University of Illinois at Urbana-Champaign [Urbana], University of Illinois System-University of Illinois System, National Institutes of Health [Bethesda] (NIH), Arizona State University [Tempe] (ASU), The Chinese University of Hong Kong [Hong Kong], Centre National de la Recherche Scientifique (CNRS), Laboratoire de biochimie théorique [Paris] (LBT (UPR_9080)), Institut de biologie physico-chimique (IBPC (FR_550)), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)

Subjects
Source code, Charm (programming language), Computer science, media_common.quotation_subject, [PHYS.PHYS.PHYS-BIO-PH]Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph], General Physics and Astronomy, Parallel computing, 010402 general chemistry, 01 natural sciences, Set (abstract data type), Molecular dynamics, ARTICLES, graphics processing units, Molecular dynamics simulation, 0103 physical sciences, Code (cryptography), Physical and Theoretical Chemistry, Massively parallel, ComputingMilieux_MISCELLANEOUS, media_common, 010304 chemical physics, high-performance computing, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, 0104 chemical sciences, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Petascale computing, Scalability, statistical mechanics
Abstract

International audience; NAMD is a molecular dynamics program designed for high-performance simulations of very large biological objects on central processing unit (CPU)-and graphics processing unit (GPU)-based architectures. NAMD offers scalable performance on petascale parallel supercomputers consisting of hundreds of thousands of cores, as well as on inexpensive commodity clusters commonly found in academic environments. It is written in C++ and leans on Charm++ parallel objects for optimal performance on low-latency architectures. NAMD is a versatile, multipurpose code that gathers state-of-the-art algorithms to carry out simulations in apt thermodynamic ensembles, using the widely popular CHARMM, AMBER, OPLS and GROMOS biomolecular force fields. Here, we review the main features of NAMD that allow both equilibrium and enhanced-sampling molecular dynamics simulations with numerical efficiency. We describe the underlying concepts utilized by NAMD and their implementation, most notably for handling long-range electrostatics, controlling the temperature, pressure and pH, applying external potentials on tailored grids, leveraging massively parallel resources in multiple-copy simulations, as well as hybrid QM/MM descriptions. We detail the variety of options offered by NAMD for enhanced-sampling simulations aimed at determining free-energy differences of either alchemical or geometrical transformations, and outline their applicability to specific problems. Last, we discuss the roadmap for the development of NAMD and our current efforts towards achieving optimal performance on GPUbased architectures, for pushing back the limitations that have prevented biologically realistic billion-atom objects to be fruitfully simulated, and for making large-scale simulations less expensive and easier to set up, run and analyze. NAMD is distributed free of charge with its source code at www.ks.uiuc.edu.

Published
2020

28. Single-particle excitations in sup 89 Y

Author

Papanicolas, C [University of Illinois at Urbana-Champaign, Urbana, IL (USA). Department of Physics University of Illinois at Urbana-Champaign, Urbana, IL (USA). Nuclear Physics Laboratory]

Published
1990
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36. A PDE-ODE model for traffic control with autonomous vehicles

Author

Liard, Thibault, Stern, Raphael, Delle Monache, Maria Laura, Universidad de Deusto [Bilbao] (DEUSTO), Universidad de Deusto (DEUSTO), Department of Civil and Environmental Engineering [Urbana], University of Illinois at Urbana-Champaign [Urbana], and University of Illinois System-University of Illinois System

Subjects
Statistics and Probability, Traffic control, Applied Mathematics, MathematicsofComputing_NUMERICALANALYSIS, Autonomous vehicles, General Engineering, Computer Science Applications, Computer Science::Robotics, ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION, [MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP], [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], PDE-ODE systems, [MATH]Mathematics [math], [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA]
Abstract

We consider a partial differential equation - ordinary differential equation system to describe the dynamics of traffic flow with autonomous vehicles. In the model, the bulk flow of human drivers is represented by a scalar conservation law, while each autonomous vehicle is described by an ordinary differential equation. The coupled PDE-ODE model is introduced, and existence of solutions for this model is shown, along with a proposed algorithm to construct approximate solutions. Next, we propose a control strategy for the speeds of the autonomous vehicles to minimize the average fuel consumption of the entire traffic flow. Existence of solutions for the optimal control problem is proved, and we numerically show that a reduction in average fuel consumption is possible with an AV acting as a moving bottleneck.

Published
2023

38. Evolution of immune genes is associated with the Black Death

Author

Jennifer Klunk, Tauras P. Vilgalys, Christian E. Demeure, Xiaoheng Cheng, Mari Shiratori, Julien Madej, Rémi Beau, Derek Elli, Maria I. Patino, Rebecca Redfern, Sharon N. DeWitte, Julia A. Gamble, Jesper L. Boldsen, Ann Carmichael, Nükhet Varlik, Katherine Eaton, Jean-Christophe Grenier, G. Brian Golding, Alison Devault, Jean-Marie Rouillard, Vania Yotova, Renata Sindeaux, Chun Jimmie Ye, Matin Bikaran, Anne Dumaine, Jessica F. Brinkworth, Dominique Missiakas, Guy A. Rouleau, Matthias Steinrücken, Javier Pizarro-Cerdá, Hendrik N. Poinar, Luis B. Barreiro, McMaster Ancient DNA Center [Hamilton, Ontario], McMaster University [Hamilton, Ontario], Daicel Arbor Biosciences [Ann Arbor, MI], University of Chicago, Yersinia, Université Paris Cité (UPCité)-Microbiologie Intégrative et Moléculaire (UMR6047), Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Museum of London, University of South Carolina [Columbia], University of Manitoba [Winnipeg], University of Southern Denmark (SDU), Indiana University [Bloomington], Indiana University System, Rutgers University [Newark], Rutgers University System (Rutgers), Université de Montréal (UdeM), University of Michigan [Ann Arbor], University of Michigan System, Centre de recherche du CHU Sainte-Justine / Research Center of the Sainte-Justine University Hospital [Montreal, Canada], Université de Montréal (UdeM)-CHU Sainte Justine [Montréal], University of California [San Francisco] (UC San Francisco), University of California (UC), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, McGill University = Université McGill [Montréal, Canada], and This work was supported by grant R01-GM134376 to L.B.B., H.P. and J.P.-C., a grant from the Wenner-Gren Foundation to J.F.B. (8702), and the UChicago DDRCC, Center for Interdisciplinary Study of Inflammatory Intestinal Disorders (C-IID) (NIDDK P30 DK042086). The SSHRC Insight Development Grant supported the collection of the Danish samples (430-2017-01193). H.N.P. was supported by an Insight Grant no. 20008499 from the Social Sciences and Humanities Research Council of Canada (SSHRC) and The Canadian Institute for Advanced Research under the Humans and the Microbiome programme. T.P.V. was supported by NIH F32GM140568. X.C. and M. Steinrücken were supported by grant R01GM146051. We also thank the University of Chicago Genomics Facility (RRID:SCR_019196), especially P. Faber, for their assistance with RNA sequencing. H.P. thanks D. Poinar for continued support and manuscript suggestions and editing.

Subjects
Yersinia pestis, General Science & Technology, Denmark, Datasets as Topic, [SDV.IMM.II]Life Sciences [q-bio]/Immunology/Innate immunity, Aminopeptidases, Ancient, Genetic, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, London, Genetics, Humans, Genetic Predisposition to Disease, DNA, Ancient, Selection, Genetic, Selection, Plague, Multidisciplinary, [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE], Prevention, Immunity, DNA, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Europe, Vector-Borne Diseases, Emerging Infectious Diseases, Infectious Diseases, Good Health and Well Being, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, Infection
Abstract

International audience; Infectious diseases are among the strongest selective pressures driving human evolution1,2. This includes the single greatest mortality event in recorded history, the first outbreak of the second pandemic of plague, commonly called the Black Death, which was caused by the bacterium Yersinia pestis3. This pandemic devastated Afro-Eurasia, killing up to 30-50% of the population4. To identify loci that may have been under selection during the Black Death, we characterized genetic variation around immune-related genes from 206 ancient DNA extracts, stemming from two different European populations before, during and after the Black Death. Immune loci are strongly enriched for highly differentiated sites relative to a set of non-immune loci, suggesting positive selection. We identify 245 variants that are highly differentiated within the London dataset, four of which were replicated in an independent cohort from Denmark, and represent the strongest candidates for positive selection. The selected allele for one of these variants, rs2549794, is associated with the production of a full-length (versus truncated) ERAP2 transcript, variation in cytokine response to Y. pestis and increased ability to control intracellular Y. pestis in macrophages. Finally, we show that protective variants overlap with alleles that are today associated with increased susceptibility to autoimmune diseases, providing empirical evidence for the role played by past pandemics in shaping present-day susceptibility to disease.

Published
2022

39. Strain localization in Ti and Ti-alloys using three-dimensional topographic imaging

Author

Rouwane, Ali, Passieux, Jean-Charles, Stinville, Jean Charles, Sirvin, Quentin, Romain, Charles, Texier, Damien, Institut Clément Ader (ICA), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, and European Project: 948007,HT-S4DefOx

Subjects
confocal microscope, DIC, plasticity, [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph], strain localization, titanium
Abstract

International audience; Understanding strain localization in titanium and titanium alloys is central to depicting better how individual grains plastically deform and how grain orientation distribution, i.e., the local texture, affects the strain distribution within large regions of interest. High-resolution imaging over large fields of view is vital in detecting the nanometer-scale elementary and irreversible deformation mechanisms as a function of the variability of mesoscopic deformation inherited from the former millimeter-scale β-grains. High Resolution-Digital Image Correlation (HR-DIC) is used to assess quantitative deformation fields from the macroscopic to the microscopic scales. Moreover, HR-DIC is used to identify slip activity in the various polycrystalline Ti and Ti-alloys. Identification of slip systems was obtained using imaging from both scanning electron microscope (SEM) and laser scanning confocal microscope (LSCM). SEM provides a high spatial resolution in the surface plane, while LSCM micrographs provide out-of-plane measurements. Both imaging techniques are complementarily used to identify deformation slip and sliding at the sub-grain scale. In-situ HR-DIC under SEM paired with ex-situ LSCM and conventional SEM observations were used to identify three-dimensional surface strain localization and subsequently slip activity in the various Ti and Ti-alloys under tensile loading at room temperature. Interrupted tensile tests were performed to inform sliding evolution as a function of the applied plastic strain. Both in-plane and out-of-plane sliding displacement were evidenced at the sub-grain level leading to an increase in roughness with increasing applied plastic strain. Interestingly, former β-grains strongly affect both strain distribution and slip activity.

Published
2023

40. Interactive effects of the El Niño-Southern Oscillation and Indian Ocean Dipole on the tropical net ecosystem productivity

Author

Ran Yan, Jun Wang, Weimin Ju, Daniel S. Goll, Atul K. Jain, Stephen Sitch, Hanqin Tian, Poulter Benjamin, Fei Jiang, Hengmao Wang, Nanjing University (NJU), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Modélisation des Surfaces et Interfaces Continentales (MOSAIC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Department of Atmospheric Sciences [Urbana], University of Illinois at Urbana-Champaign [Urbana], University of Illinois System-University of Illinois System, University of Exeter, and Boston College (BC)

Subjects
Atmospheric Science, Global and Planetary Change, [SDU]Sciences of the Universe [physics], Forestry, Agronomy and Crop Science
Published
2023

41. High-Throughput High-Resolution Digital Image Correlation Measurements by Multi-Beam SEM Imaging

Author

R. L. Black, T. Garbowski, C. Bean, A. L. Eberle, S. Nickell, D. Texier, V. Valle, J. C. Stinville, University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Carl Zeiss MultiSEM GmbH, Institut Clément Ader (ICA), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Pprime (PPRIME), and Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI]Engineering Sciences [physics], High-Resolution Digital Image Correlation, Mechanics of Materials, Mechanical Engineering, Nickel-based Superalloy, Strain Localization, Slip Localization, MultiSEM, Aerospace Engineering, Scanning Electron Microscopy
Abstract

International audience; Background Recent improvements in spatial resolution and measurement sensitivity for high-resolution digital image cor-relation (HR-DIC) now provide an avenue for the quantitative measurement of deformation events and capturing the physicalnature of deformation mechanisms. However, HR-DIC measurements require significant time due to scanning electron imageacquisition; such a limitation prevents the widespread use of HR-DIC for material characterization.Objective Apply a novel SEM acquisition technology to enhance HR-DIC measurements for high throughput applications.Methods Multi-beam SEM technology is employed to image an entire gauge length at once at high resolution and at nearly ahundredfold acceleration of typical HR-DIC image acquisition, even when automated stage movement and image acquisitionare employed. These images were fed into a discontinuity-tolerant HR-DIC software to determine slip localization inducedby non-metallic inclusions and grain structure.Results Slip localization was able to be analyzed to an unprecedented level, with over 210,000 slip bands able to be investi-gated, with the most intense slip localizing near and parallel to twin boundaries and in the vicinity of non-metallic inclusionclusters. Additionally, secondary slip activation and grain boundary shearing by intense dislocation pileups are observed toreduce slip amplitude near and parallel to twin boundaries.Conclusions By performing HR-DIC in conjunction with a multi-beam SEM, high-throughput measurements of large field-of-view, high-resolution images were able to be performed in a timely manner. These measurements provided an immensenumber of slip events for statistical analysis to be performed on to relate to microstructural features.

Published
2023

42. Improving crop Yield potential: Underlying biological processes and future prospects

Author

Burgess, Alexandra, Masclaux-Daubresse, Céline, Strittmatter, Günter, Weber, Andreas, Taylor, Samuel Harry, Harbinson, Jeremy, Yin, Xinyou, Long, Stephen, Paul, Matthew, Westhoff, Peter, Loreto, Francesco, Ceriotti, Aldo, Saltenis, Vandasue, Pribil, Mathias, Nacry, Philippe, Scharff, Lars, Jensen, Poul Erik, Muller, Bertrand, Cohan, Jean‐pierre, Foulkes, John, Rogowsky, Peter, Debaeke, Philippe, Meyer, Christian, Nelissen, Hilde, Inzé, Dirk, Klein Lankhorst, René, Parry, Martin, Murchie, Erik, Baekelandt, Alexandra, University of Nottingham, UK (UON), Institut Jean-Pierre Bourgin (IJPB), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich Heine Universität Düsseldorf = Heinrich Heine University [Düsseldorf]-Max Planck Institute for Plant Breeding Research (MPIPZ)-Universität zu Köln = University of Cologne, Lancaster Environment Centre, Lancaster University, Wageningen University and Research [Wageningen] (WUR), University College of London [London] (UCL), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Rothamsted Research, Biotechnology and Biological Sciences Research Council (BBSRC), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), University of Copenhagen = Københavns Universitet (UCPH), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Food Science [Copenhagen] (UCPH FOOD), Faculty of Science [Copenhagen], University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH), Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), ARVALIS - Institut du végétal [Paris], Reproduction et développement des plantes (RDP), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), AGroécologie, Innovations, teRritoires (AGIR), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Plant Systems Biology, VIB, and Department of Plant Biotechnology and Bioinformatics, Universiteit Gent = Ghent University (UGENT), European Commission 817690, and European Project: 817690,ERC

Subjects
food supply, photosynthesis, [SDV]Life Sciences [q-bio], [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, crop yield, nutrient remobilisation, crop improvement, organ growth
Abstract

International audience; The growing world population and global increases in the standard of living both result in an increasing demand for food, feed and other plant- derived products. In the coming years, plant- based research will be among the major drivers ensuring food security and the expansion of the bio- based economy. Crop productivity is determined by several factors, including the available physical and agricultural resources, crop management, and the resource use efficiency, quality and intrinsic yield potential of the chosen crop. This review focuses on intrinsic yield potential, since understanding its determinants and their biological basis will allow to maximize the plant's potential in food and energy production. Yield potential is determined by a variety of complex traits that integrate strictly regulated processes and their underlying gene regulatory networks. Due to this inherent complexity, numerous potential targets have been identified that could be exploited to increase crop yield. These encompass diverse metabolic and physical processes at the cellular, organ and canopy level. We present an overview of some of the distinct biological processes considered to be crucial for yield determination that could further be exploited to improve future crop productivity.

Published
2023

43. Declining global warming effects on the phenology of spring leaf unfolding

Author

Mengtian Huang, Marc Peaucelle, Zhenzhong Zeng, Hongfang Zhao, Yann Vitasse, Ivan A. Janssens, Philippe Ciais, Guiyun Zhou, Yongshuo H. Fu, Josep Peñuelas, Annette Menzel, Yang Song, Shilong Piao, Shushi Peng, Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University [Beijing], Department of Biology, Centre of Excellence PLECO (Plant and Vegetation Ecology), University of Antwerp (UA), Institute of Tibetan Plateau Research, Key Laboratory of Alpine Ecology and Biodiversity, Chinese Academy of Sciences [Changchun Branch] (CAS), CAS Center for Excellence in Tibetan Plateau Earth Sciences, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, China, ICOS-ATC (ICOS-ATC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Chair for Ecoclimatology, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Global Ecology Unit CREAF-CEAB-CSIC, Universitat Autònoma de Barcelona (UAB), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Université de Neuchâtel (UNINE), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, European Project: 610028,EC:FP7:ERC,ERC-2013-SyG,IMBALANCE-P(2014), European Project: 282250,EC:FP7:ERC,ERC-2011-StG_20101109,E3(2012), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Subjects
Time Factors, Photoperiod, Biology, Global Warming, Models, Biological, Trees, Effects of global warming, Spring (hydrology), [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, photoperiodism, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, geography, Multidisciplinary, geography.geographical_feature_category, Phenology, Ecology, Global warming, 15. Life on land, Cold Temperature, Europe, Plant Leaves, Horticulture, Deciduous, 13. Climate action, Dormancy, Seasons, Engineering sciences. Technology, Tree species
Abstract

Spring leaf unfolding has been occurring earlier in the year because of rising temperatures; however, long-term evidence in the field from 7 European tree species studied in 1,245 sites shows that this early unfolding effect is being reduced in recent years, possibly because the reducing chilling and/or insolation render trees less responsive to warming. Spring leaf unfolding has been occurring earlier in the year because of rising temperatures, but some experimental evidence has suggested that the effect is becoming less marked because trees are not receiving the necessary chilling required to trigger leaf unfolding. Shilong Piao and colleagues present evidence based on long-term field observations of seven European tree species studied in 1,245 locations across Europe confirming that a weakening of temperature sensitivity of leaf unfolding is indeed occurring. The authors provide model-based evidence that the chilling effect is at least partially responsible. Earlier spring leaf unfolding is a frequently observed response of plants to climate warming1,2,3,4. Many deciduous tree species require chilling for dormancy release, and warming-related reductions in chilling may counteract the advance of leaf unfolding in response to warming5,6. Empirical evidence for this, however, is limited to saplings or twigs in climate-controlled chambers7,8. Using long-term in situ observations of leaf unfolding for seven dominant European tree species at 1,245 sites, here we show that the apparent response of leaf unfolding to climate warming (ST, expressed in days advance of leaf unfolding per °C warming) has significantly decreased from 1980 to 2013 in all monitored tree species. Averaged across all species and sites, ST decreased by 40% from 4.0 ± 1.8 days °C−1 during 1980–1994 to 2.3 ± 1.6 days °C−1 during 1999–2013. The declining ST was also simulated by chilling-based phenology models, albeit with a weaker decline (24–30%) than observed in situ. The reduction in ST is likely to be partly attributable to reduced chilling. Nonetheless, other mechanisms may also have a role, such as ‘photoperiod limitation’ mechanisms that may become ultimately limiting when leaf unfolding dates occur too early in the season. Our results provide empirical evidence for a declining ST, but also suggest that the predicted strong winter warming in the future may further reduce ST and therefore result in a slowdown in the advance of tree spring phenology.

Published
2015

44. Covid-19 affects taste independently of smell: results from a combined chemosensory home test and online survey from a global cohort (N=10,953)

Author

Ha Nguyen, Javier Albayay, Richard Höchenberger, Surabhi Bhutani, Sanne Boesveldt, Niko A. Busch, Ilja Croijmans, Keiland W. Cooper, Jasper H. B. de Groot, Michael C. Farruggia, Alexander W. Fjaeldstad, John E. Hayes, Thomas Hummel, Paule V. Joseph, Tatiana K. Laktionova, Thierry Thomas-Danguin, Maria G. Veldhuizen, Vera V. Voznessenskaya, Valentina Parma, M. Yanina Pepino, Kathrin Ohla, Monell Chemical Senses Center, Università degli Studi di Trento (UNITN), Université Paris-Saclay, INRIA, CEA, San Diego State University (SDSU), Wageningen University and Research [Wageningen] (WUR), Department of Psychology, University of Münster, Münster, Radboud University [Nijmegen], University of California [Irvine] (UC Irvine), University of California (UC), Yale University School of Medicine, Regionshospitalet Gødstrup, Herning, The Pennsylvania State University, University Park, PA, University of Dresden Medical School, National Institute on Alcohol Abuse and Alcoholism [Bethesda, MD, USA] (NIAAA), Tatiana K. Laktionova, A N Severtsov Institute of Ecology and Evolution RAS, Moscow, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Mersin University, University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Helmut Schmidt University, University of the Armed Forces Hamburg, Firmenich SA, This work was supported, in part, by the National Science Foundation [grand number DGE-1839285 to C.K.], the National Institute on Alcohol Abuse and Alcoholism [grant number Z01AA000135 to P.V.J], the National Institute of Nursing Research [grant number 1ZIANR000035-01 to P.V.J], the National Institute of Deafness and Other Communication Disorders [grant number U01DC019573 to J.E.H.], and the National Institute of Food and Agriculture via Hatch Act funds [grant number 698-921 to M.Y.P., and PEN04708 to J.E.H.].

Subjects
chemesthesis, olfaction gustation chemesthesis anosmia ageusia taste-smell confusion, ageusia, [SDV.MHEP.OS]Life Sciences [q-bio]/Human health and pathology/Sensory Organs, gustation, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, anosmia, taste-smell confusion, olfaction
Abstract

People often confuse smell loss with taste loss, so it is unclear how much gustatory function is reduced in patients self-reporting taste loss. Our pre-registered cross-sectional study design included an online survey in 12 languages with instructions for self-administering chemosensory tests with ten household items. Between June 2020 and March 2021, 10,953 individuals participated. Of these, 3,356 self-reported a positive and 602 a negative COVID-19 diagnosis (COVID+ and COVID-, respectively); 1,267 were awaiting test results (COVID?). The rest reported no respiratory illness and were grouped by symptoms: sudden smell/taste changes (STC, N=4,445), other symptoms excluding smell or taste loss (OthS, N=832), and no symptoms (NoS, N=416). Taste, smell, and oral irritation intensities and self-assessed abilities were rated on visual analog scales. Compared to the NoS group, COVID+ was associated with a 21% reduction in taste (95% Confidence Interval (CI): 15-28%), 47% in smell (95%-CI: 37-56%), and 17% in oral irritation (95%-CI: 10-25%) intensity. In all groups, perceived intensity of smell (r=0.84), taste (r=0.68), and oral irritation (r=0.37) was correlated. Our findings suggest most reports of taste dysfunction with COVID-19 were genuine and not due to misinterpreting smell loss as taste loss (i.e., a classical taste-flavor confusion). Assessing smell and taste intensity of household items is a promising, cost-effective screening tool that complements self-reports and helps to disentangle taste loss from smell loss. However, it does not replace standardized validated psychophysical tests.

Published
2023

45. Covid-19 affects taste independent of taste-smell confusions: results from a combined chemosensory home test and online survey from a large global cohort

Author

Nguyen, Ha, Albayay, Javier, Höchenberger, Richard, Bhutani, Surabhi, Boesveldt, Sanne, Busch, Niko, Croijmans, Ilja, Cooper, Keiland, de Groot, Jasper, Farruggia, Michael, Fjaeldstad, Alexander, Hayes, John, Hummel, Thomas, Joseph, Paule, Laktionova, Tatiana, Thomas-Danguin, Thierry, Veldhuizen, Maria, Voznessenskaya, Vera, Parma, Valentina, Pepino, M. Yanina, Ohla, Kathrin, Monell Chemical Senses Center, Università degli Studi di Trento (UNITN), Université Paris-Saclay, INRIA, CEA, San Diego State University (SDSU), Wageningen University and Research [Wageningen] (WUR), Westfälische Wilhelms-Universität Münster = University of Münster (WWU), Radboud University [Nijmegen], University of California (UC), Yale University [New Haven], University research clinic [Herning, Denmark], The Pennsylvania State University, PA, University of Dresden Medical School, National Institutes of Health [Bethesda] (NIH), A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences [Moscow] (RAS), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Mersin University, University of Illinois at Urbana-Champaign [Urbana], and University of Illinois System

Subjects
[SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, chemesthesis, ageusia, gustation, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, anosmia, taste-smell confusion, olfaction
Abstract

International audience; People often confuse smell loss with taste loss, so it is unclear how much gustatory function is reduced in patients self-reporting taste loss. Our pre-registered cross-sectional study design included an online survey in 12 languages with instructions for self-administering chemosensory tests with ten household items. Between June 2020 and March 2021, 10,953 individuals participated. Of these, 5,225 self-reported a respiratory illness and were grouped based on their reported COVID test results: COVID-positive (COVID+, N=3,356), COVID-negative (COVID-, N=602), and COVID unknown for those waiting for a test result (COVID?, N=1,267). The participants who reported no respiratory illness were grouped by symptoms: sudden smell/taste changes (STC, N=4,445), other symptoms excluding smell or taste loss (OthS, N=832), and no symptoms (NoS, N=416). Taste, smell, and oral irritation intensities and self-assessed abilities were rated on visual analog scales. Compared to the NoS group, COVID+ was associated with a 21% reduction in taste (95% Confidence Interval (CI): 15-28%), 47% in smell (95%-CI: 37-56%), and 17% in oral irritation (95%-CI: 10-25%) intensity. In all groups, the perceived intensity of smell (r=0.84), taste (r=0.68), and oral irritation (r=0.37) was correlated. Our study demonstrates that COVID-19 positive individuals report taste dysfunction when self-tested with stimuli that have little to none olfactory components. Assessing the smell and taste intensity of household items is a promising, cost-effective screening tool that complements self-reports and may help to disentangle taste loss from smell loss. However, it does not replace standardized validated psychophysical tests.

Published
2023

46. The CHiME-7 UDASE task: Unsupervised domain adaptation for conversational speech enhancement

Author

Leglaive, Simon, Borne, Léonie, Tzinis, Efthymios, Sadeghi, Mostafa, Fraticelli, Matthieu, Wisdom, Scott, Pariente, Manuel, Pressnitzer, Daniel, Hershey, John R., Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), CentraleSupélec, Pulse Audition, University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Inria Nancy - Grand Est, Institut National de Recherche en Informatique et en Automatique (Inria), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL), Google Inc, and Research at Google

Subjects
CHiME challenge, FOS: Computer and information sciences, Sound (cs.SD), Audio and Speech Processing (eess.AS), [INFO.INFO-SD]Computer Science [cs]/Sound [cs.SD], FOS: Electrical engineering, electronic engineering, information engineering, speech enhancement, unsupervised domain adaptation, multi-speaker conversational speech, Computer Science - Sound, [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], Electrical Engineering and Systems Science - Audio and Speech Processing, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract

Supervised speech enhancement models are trained using artificially generated mixtures of clean speech and noise signals, which may not match real-world recording conditions at test time. This mismatch can lead to poor performance if the test domain significantly differs from the synthetic training domain. In this paper, we introduce the unsupervised domain adaptation for conversational speech enhancement (UDASE) task of the 7th CHiME challenge. This task aims to leverage real-world noisy speech recordings from the target test domain for unsupervised domain adaptation of speech enhancement models. The target test domain corresponds to the multi-speaker reverberant conversational speech recordings of the CHiME-5 dataset, for which the ground-truth clean speech reference is not available. Given a CHiME-5 recording, the task is to estimate the clean, potentially multi-speaker, reverberant speech, removing the additive background noise. We discuss the motivation for the CHiME-7 UDASE task and describe the data, the task, and the baseline system.

Published
2023
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47. Teleoperation of Humanoid Robots: A Survey

Author

Kourosh Darvish, Luigi Penco, Joao Ramos, Rafael Cisneros, Jerry Pratt, Eiichi Yoshida, Serena Ivaldi, Daniele Pucci, Università degli studi di Genova = University of Genoa (UniGe), Florida Institute for Human and Machine Cognition [Pensacola] (IHMC), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Intelligent Systems Institute [Tsukuba] (IS AIST), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo University of Science [Tokyo], Lifelong Autonomy and interaction skills for Robots in a Sensing ENvironment (LARSEN), Inria Nancy - Grand Est, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Department of Complex Systems, Artificial Intelligence & Robotics (LORIA - AIS), Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), European Project: euROBIN, and European Project: 731540,H2020,An.Dy(2017)

Subjects
FOS: Computer and information sciences, Computer Science - Robotics, Control and Systems Engineering, Teleoperation, [INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO], Humanoid robot, Electrical and Electronic Engineering, Robotics (cs.RO), Computer Science Applications
Abstract

International audience; Teleoperation of humanoid robots enables the integration of the cognitive skills and domain expertise of humans with the physical capabilities of humanoid robots. The operational versatility of humanoid robots makes them the ideal platform for a wide range of applications when teleoperating in a remote environment. However, the complexity of humanoid robots imposes challenges for teleoperation, particularly in unstructured dynamic environments with limited communication. Many advancements have been achieved in the last decades in this area, but a comprehensive overview is still missing. This survey paper gives an extensive overview of humanoid robot teleoperation, presenting the general architecture of a teleoperation system and analyzing the different components. We also discuss different aspects of the topic, including technological and methodological advances, as well as potential applications. A web-based version of the paper can be found at https://humanoid-teleoperation.github.io/.

Published
2023

48. Diversity and structure of feather mite communities on seabirds from the north–east Atlantic and Mediterranean Sea

Author

Laura M. Stefan, Wolf Isbert, Elena Gómez-Díaz, Sergey V. Mironov, Jorge Doña, Karen D. McCoy, Jacob González-Solís, Institut de Recerca de la Biodiversitat - Biodiversity Research Institute [Barcelona, Spain] (IRBio UB), Universitat de Barcelona (UB), National Institute of Research and Development for Biological Sciences [Bucarest] (INCDSB), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM), Universitat de València (UV), Alfred Wegener Institute for Polar and Marine Research (AWI), Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Zoological Institute of Russian Academy of Sciences, Russian Academy of Sciences [Moscow] (RAS), University of Illinois at Urbana-Champaign [Urbana], and University of Illinois System

Subjects
MESH: Atlantic Ocean, Multidisciplinary, MESH: Mediterranean Sea, MESH: Host Specificity, [SDV.BA]Life Sciences [q-bio]/Animal biology, MESH: Birds, MESH: Animals, MESH: Mites, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

The richness and structure of symbiont assemblages are shaped by many factors acting at different spatial and temporal scales. Among them, host phylogeny and geographic distance play essential roles. To explore drivers of richness and structure of symbiont assemblages, feather mites and seabirds are an attractive model due to their peculiar traits. Feather mites are permanent ectosymbionts and considered highly host-specific with limited dispersal abilities. Seabirds harbour species-rich feather mite communities and their colonial breeding provides opportunities for symbionts to exploit several host species. To unravel the richness and test the influence of host phylogeny and geographic distance on mite communities, we collected feather mites from 11 seabird species breeding across the Atlantic Ocean and Mediterranean Sea. Using morphological criteria, we identified 33 mite species, of which 17 were new or recently described species. Based on community similarity analyses, mite communities were clearly structured by host genera, while the effect of geography within host genera or species was weak and sometimes negligible. We found a weak but significant effect of geographic distance on similarity patterns in mite communities for Cory’s shearwaters Calonectris borealis. Feather mite specificity mainly occurred at the host-genus rather than at host-species level, suggesting that previously inferred host species-specificity may have resulted from poorly sampling closely related host species. Overall, our results show that host phylogeny plays a greater role than geography in determining the composition and structure of mite assemblages and pinpoints the importance of sampling mites from closely-related host species before describing mite specificity patterns.

Published
2023

49. Conflict Optimization for Binary CSP Applied to Minimum Partition into Plane Subgraphs and Graph Coloring

Author

Loïc Crombez, Guilherme D. Da Fonseca, Florian Fontan, Yan Gerard, Aldo Gonzalez-Lorenzo, Pascal Lafourcade, Luc Libralesso, Benjamin Momège, Jack Spalding-Jamieson, Brandon Zhang, Da Wei Zheng, Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), MAAD, Laboratoire d'Informatique, de Modélisation et d'optimisation des Systèmes (LIMOS), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université d'Auvergne - Clermont-Ferrand I (UdA)-SIGMA Clermont (SIGMA Clermont)-Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université d'Auvergne - Clermont-Ferrand I (UdA)-SIGMA Clermont (SIGMA Clermont)-Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Algorithmique, Combinatoire et Recherche Opérationnelle (ACRO), Laboratoire d'Informatique et Systèmes (LIS), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Chercheur indépendant, Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), MODélisation Géométrique (GMOD), David R. Cheriton School of Computer Science, University of Waterloo [Waterloo], University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, ANR-19-CE48-0005,ADDS,Algorithmes pour les données multidimensionnelles(2019), ANR-19-CE19-0005,ACTIVmap,Assistance à la Conception de carTes pour défIcients Visuels(2019), ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016), ANR-20-CE10-0002,COHERENCE4D,Cohérence des jumeaux numériques pour l'industrie du futur : Modélisation, visualisation et interaction de maquettes numériques 4D interfacées aux systèmes physiques(2020), ANR-18-CE39-0019,MobiS5,La sécurité et la privacy dans les réseaux 5G(2018), ANR-18-CE39-0007,DeCrypt,Langage Déclaratif pour la cryptographie symétrique(2018), and ANR-20-CE39-0005,PRIVABIO,Vers des systèmes de reconnaissance biométrique respectueux de la vie privée(2020)

Subjects
Computational Geometry (cs.CG), FOS: Computer and information sciences, Graph Coloring, Computer Science - Data Structures and Algorithms, Computer Science - Computational Geometry, Constraint Satisfaction Problems, [INFO]Computer Science [cs], Data Structures and Algorithms (cs.DS), CG:SHOP 2022, DIMACS, Theoretical Computer Science
Abstract

CG:SHOP is an annual geometric optimization challenge and the 2022 edition proposed the problem of coloring a certain geometric graph defined by line segments. Surprisingly, the top three teams used the same technique, called conflict optimization. This technique has been introduced in the 2021 edition of the challenge, to solve a coordinated motion planning problem. In this paper, we present the technique in the more general framework of binary constraint satisfaction problems (binary CSP). Then, the top three teams describe their different implementations of the same underlying strategy. We evaluate the performance of those implementations to vertex color not only geometric graphs, but also other types of graphs., Comment: To appear at ACM Journal of Experimental Algorithmics

Published
2023
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50. Are Commercially Implemented Adaptive Cruise Control Systems String Stable?

Author

George Gunter, Roman Lysecky, Maria Laura Delle Monache, Derek Gloudemans, Daniel B. Work, Jonathan Sprinkle, Benedetto Piccoli, Rahul Bhadani, Sean T. McQuade, Matt Bunting, Raphael Stern, Benjamin Seibold, Department of Civil and Environmental Engineering [Urbana], University of Illinois at Urbana-Champaign [Urbana], University of Illinois System-University of Illinois System, Institute for Software Integrated Systems [Nashville], Vanderbilt University [Nashville], Department of Civil and Environmental Engineering [Nashville], Department of Mathematical Sciences [Camden], Rutgers University [Camden], Rutgers University System (Rutgers)-Rutgers University System (Rutgers), Department of Electrical and Computer Engineering [Tucson] (ECE), University of Arizona, Dynamics and Control of Networks (DANCE), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-GIPSA Pôle Automatique et Diagnostic (GIPSA-PAD), Grenoble Images Parole Signal Automatique (GIPSA-lab), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Grenoble Alpes (UGA), Department of Computer Science & Engineering [Riverside] (CSE), University of California [Riverside] (UCR), University of California-University of California, Temple University [Philadelphia], Pennsylvania Commonwealth System of Higher Education (PCSHE), Department of Electrical and Computer Engineering [Tuscon], Inria Associate Team MEMENTO, University of California [Riverside] (UC Riverside), and University of California (UC)-University of California (UC)

Subjects
0209 industrial biotechnology, Computer science, 93D99, Systems and Control (eess.SY), 02 engineering and technology, Stability (probability), Trim, Data modeling, Mathematical model, 020901 industrial engineering & automation, Control theory, 0502 economics and business, 11. Sustainability, FOS: Electrical engineering, electronic engineering, information engineering, [INFO.INFO-SY]Computer Science [cs]/Systems and Control [cs.SY], Point (geometry), Analytical models, Cruise control, 050210 logistics & transportation, Mechanical Engineering, 05 social sciences, String (computer science), Data models, Stability analysis, Adaptation models, Delay differential equation, Computer Science Applications, Automotive Engineering, Computer Science - Systems and Control, Platoon, Automobiles
Abstract

International audience; In this article, we assess the string stability of seven 2018 model year adaptive cruise control (ACC) equipped vehicles that are widely available in the US market. Seven distinct vehicle models from two different vehicle makes are analyzed using data collected from more than 1,200 miles of driving in car-following experiments with ACC engaged by the follower vehicle. The resulting dataset is used to identify the parameters of a linear second order delay differential equation model that approximates the behavior of the black box ACC systems. The string stability of the data-fitted model associated with each vehicle is assessed, and the main finding is that all seven vehicle models have string unstable ACC systems. For one commonly available vehicle model that offers ACC as a standard feature on all trim levels, we validate the string stability finding with a multi-vehicle platoon experiment in which all vehicles are the same year, make, and model. In this test, an initial disturbance of 6 mph is amplified to a 25 mph disturbance, at which point the last vehicle in the platoon is observed to disengage the ACC. The data collected in the driving experiments is made available, representing the largest publicly available comparative driving dataset on ACC equipped vehicles.

Published
2021

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