Search

Your search keyword '"Smith, J. C"' showing total 2,912 results
Start Over Author "Smith, J. C"
2,912 results on '"Smith, J. C"'

101. Addressing technical challenges in 100% variable inverter-based renewable energy power systems

Author

Hodge, B. -MS., Jain, H., Brancucci, C., Seo, G. -S, Korpås, M., Kiviluoma, J., Holttinen, H., Smith, J. C., Orths, A., Estanqueiro, A., Söder, Lennart, Flynn, D., Vrana, T. K., Kenyon, R. W., Kroposki, B., Hodge, B. -MS., Jain, H., Brancucci, C., Seo, G. -S, Korpås, M., Kiviluoma, J., Holttinen, H., Smith, J. C., Orths, A., Estanqueiro, A., Söder, Lennart, Flynn, D., Vrana, T. K., Kenyon, R. W., and Kroposki, B.

Abstract

Rapidly increasing levels of variable inverter-based renewable energy sources (are quickly changing electric power systems and prompting questions about how the systems will be operated when renewable generation becomes the dominant technologies. In this article, we review the status of this shifting paradigm in power systems throughout the world. We then review the implications of this shift, focusing on the rising challenges, and we provide an overview and technology-readiness classifications of some proposed mitigation strategies. Finally, we highlight outstanding questions that will require solutions to reach these ultrahigh shares of variable inverter-based renewable energy sources., QC 20201217

Published
2020
Full Text
View/download PDF

102. Complex Rotational Modulation of Rapidly Rotating M Stars Observed with TESS

Author

Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology. Department of Physics, MIT Kavli Institute for Astrophysics and Space Research, Zhan, Zhuchang, Guenther, Maximilian N., Rappaport, Saul A, Olah, K., Levine, Alan M., Winn, J., Dai, F., Zhou, G., Huang, Chelsea, Bouma, L. G., Ireland, M. J., Ricker, George R., Vanderspek, Roland K., Latham, D., Seager, Sara, Jenkins, J., Caldwell, D. A., Doty, J. P., Essack, Zahra, Furesz, Gabor, Leidos, E. R., Rowden, P., Smith, J. C., Stassun, K. G., Vezie, Michael L., Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology. Department of Physics, MIT Kavli Institute for Astrophysics and Space Research, Zhan, Zhuchang, Guenther, Maximilian N., Rappaport, Saul A, Olah, K., Levine, Alan M., Winn, J., Dai, F., Zhou, G., Huang, Chelsea, Bouma, L. G., Ireland, M. J., Ricker, George R., Vanderspek, Roland K., Latham, D., Seager, Sara, Jenkins, J., Caldwell, D. A., Doty, J. P., Essack, Zahra, Furesz, Gabor, Leidos, E. R., Rowden, P., Smith, J. C., Stassun, K. G., and Vezie, Michael L.

Abstract

We have searched for short periodicities in the light curves of stars with T eff cooler than 4000 K made from 2-minute cadence data obtained in Transiting Exoplanet Survey Satellite sectors 1 and 2. Herein we report the discovery of 10 rapidly rotating M dwarfs with highly structured rotational modulation patterns among 371 M dwarfs found to have rotation periods less than 1 day. Starspot models cannot explain the highly structured periodic variations that typically exhibit between 10 and 40 Fourier harmonics. A similar set of objects was previously reported following K2 observations of the Upper Scorpius association. We examine the possibility that the unusual structured light curves could stem from absorption by charged dust particles that are trapped in or near the stellar magnetosphere. We also briefly explore the possibilities that the sharp structured features in the light curves are produced by extinction by coronal gas, by beaming of the radiation emitted from the stellar surface, or by occultations of spots by a dusty ring that surrounds the star. The last is perhaps the most promising of these scenarios. Most of the structured rotators display flaring activity, and we investigate changes in the modulation pattern following the largest flares. As part of this study, we also report the discovery of 17 rapidly rotating M dwarfs with rotational periods below 4 hr, of which the shortest period is 1.63 hr. Key words: circumstellar matter – stars: flare – stars: low-mass – stars: pre-main sequence – stars: variables: general – starspots

Published
2020

103. A hot mini-Neptune in the radius valley orbiting solar analogue HD 110113

Author

Osborn, H P, primary, Armstrong, D J, additional, Adibekyan, V, additional, Collins, K A, additional, Delgado-Mena, E, additional, Howell, S B, additional, Hellier, C, additional, King, G W, additional, Lillo-Box, J, additional, Nielsen, L D, additional, Otegi, J F, additional, Santos, N C, additional, Ziegler, C, additional, Anderson, D R, additional, Briceño, C, additional, Burke, C, additional, Bayliss, D, additional, Barrado, D, additional, Bryant, E M, additional, Brown, D J A, additional, Barros, S C C, additional, Bouchy, F, additional, Caldwell, D A, additional, Conti, D M, additional, Díaz, R F, additional, Dragomir, D, additional, Deleuil, M, additional, Demangeon, O D S, additional, Dorn, C, additional, Daylan, T, additional, Figueira, P, additional, Helled, R, additional, Hoyer, S, additional, Jenkins, J M, additional, Jensen, E L N, additional, Latham, D W, additional, Law, N, additional, Louie, D R, additional, Mann, A W, additional, Osborn, A, additional, Pollacco, D L, additional, Rodriguez, D R, additional, Rackham, B V, additional, Ricker, G, additional, Scott, N J, additional, Sousa, S G, additional, Seager, S, additional, Stassun, K G, additional, Smith, J C, additional, Strøm, P, additional, Udry, S, additional, Villaseñor, J, additional, Vanderspek, R, additional, West, R, additional, Wheatley, P J, additional, and Winn, J N, additional

Published
2021
Full Text
View/download PDF

106. Abstracts of Papers Presented at the 51st Annual Meeting Eastern Branch Entomological Society of America Hershey, Pa. September 26, 27 and 28, 1979

Author

Akers, R C, Robinson, William H, Akram, M, Forgash, A J, Averill, Anne L, Prokopy, R J, Bacon, N. P., Bajusz, B. A., Smilowitz, Z, Mack, T P, Petitt, F L, Martinka, C A, Whalon, Mark Edward, Beal, R., Bean, Richard A, Denno, Robert F, Bowman, James S., Eaton, A T, Briggs, S. P., Allen, W. A., Brushwein, Jeffrey R., Granett, J, Burger, T L, Cannon, K F, Clark, R. A., Cochran, D G, Cope, S E, Catts, E P, Cowden, R L, Cromartie, William J., Rivera, M A, Gfrorer, J, Maser, D, Davis, M A, Degrandi, G L, Collison, C H, Dodds, P J, Dowd, P F, Kok, L T, Rabb, R L, Van Duyn, J. W., Elliott, Simon B, Shlotzhauer, T, Engebretson, J A, Mullins, D E, Evans, E W, Fernald, G P, Burger, J F, Fiori, B J, Lamb, R C, Gelman, D B, Hayes, D K, Greenplate, J T, Greenberg, S, Stuart, A M, Hansens, E J, Johnson, W M, Crans, W J, Kamran, M A, Keil, C B, Klemas, V, Kolodny-Hirsch, D M, Harrison, F P, Lake, D J, Logan, P A, Casagrande, Richard A., Mcclintock, J T, Reichelderfer, C F, Mcclure, M S, Maccollom, G B, Baumann, G., Welch, J. G., Madhavan, M M, Madhavan, K, Magnarelli, L A, Mahaney, J H, Maier, Chris T., Mastro, V C, Mather, T N, Mellors, W K, Helgesen, R G, Michelotti, F W, Seidenberger, J W, Mkhize, J, Gupta, A P, Murphy, J W, Smith, J C, Nechols, J R, Newton, W G, Parrella, M P, Horsburgh, R L, Nolan, E S, Powell, P K, Rajotte, E G, Roberts, R B, Raupp, M J, Denno, R F, Rexrode, C O, Ringo, J M, Roitberg, B D, Rossiter, M C, Schneider, J C, Schultz, P B, Schwalbe, C P, Paszek, E C, Schweitzer, D F, Semtner, P J, Terrill, T. R., Shapiro, J P, Hagedorn, H H, Herbert, E W, Shimanuki, H, Shasha, B S, Smith, I B, Caron, D M, Sofield, R K, Stiller, D, Frerichs, W M, Leatch, G, Kuttler, K L, Sunzenauer, I M, Elden, T, Steinhauer, A L, Swift, F C, Blaustein, Leon, Treichler, R., Trumble, John T., Tweeten, Kathleen Anita, Tysowsky, M, Uebel, E. C., Warthen, J. D., Webb, J. W., Weires, Richard William, Leeper, J R, Wheeler, A. G., Valley, K. R., Winegar, J. J., and BioStor

Published
1980

107. Dawn Maneuver Design Performance at Vesta

Author

Parcher, Daniel, Whiffen, Gregory, Abrahamson, M, Ardito, A, Han, D, Haw, R. J, Kennedy, B. M, Mastrodemos, N, Nandi, S, Park, R. S, Rush, B. P, Smith, B. A, Smith, J. C, and Vaughan, A. T

Subjects
Astrodynamics
Published
2013

108. Dawn Maneuver Design Performance at Vesta

Author

Parcher, D. W, Abrahamson, M, Ardito, A, Han, D, Haw, R. J, Kennedy, B. M, Mastrodemos, N, Nandi, S, Park, R. S, Rush, B. P, Smith, B. A, Smith, J. C, Vaughan, A. T, and Whiffen, G. J

Subjects
Astrodynamics
Abstract

The Dawn spacecraft orbited the asteroid Vesta from July 16, 2011 to September 5, 2012, successfully accomplishing the four planned science orbits and two planned rotational characterization orbits. The lowest-altitude science orbit lasted four months, with 20 planned orbit maintenance maneuvers. Navigation results from Vesta demonstrate that the navigation plan was sufficient to achieve orbit delivery accuracy requirements. This paper compares the flown Dawn trajectory against the planned trajectory and expected maneuver dispersions. Understanding the effectiveness of the Vesta maneuver design plan is a key component of planning for operations at Ceres, the next destination for the Dawn mission.

Published
2013

115. Supercomputer-Based Ensemble Docking Drug Discovery Pipeline with Application to Covid-19

Author

Acharya, A., primary, Agarwal, R., additional, Baker, M. B., additional, Baudry, J., additional, Bhowmik, D., additional, Boehm, S., additional, Byler, K. G., additional, Chen, S. Y., additional, Coates, L., additional, Cooper, C. J., additional, Demerdash, O., additional, Daidone, I., additional, Eblen, J. D., additional, Ellingson, S., additional, Forli, S., additional, Glaser, J., additional, Gumbart, J. C., additional, Gunnels, J., additional, Hernandez, O., additional, Irle, S., additional, Kneller, D. W., additional, Kovalevsky, A., additional, Larkin, J., additional, Lawrence, T. J., additional, LeGrand, S., additional, Liu, S.-H., additional, Mitchell, J.C., additional, Park, G., additional, Parks, J.M., additional, Pavlova, A., additional, Petridis, L., additional, Poole, D., additional, Pouchard, L., additional, Ramanathan, A., additional, Rogers, D. M., additional, Santos-Martins, D., additional, Scheinberg, A., additional, Sedova, A., additional, Shen, Y., additional, Smith, J. C., additional, Smith, M. D., additional, Soto, C., additional, Tsaris, A., additional, Thavappiragasam, M., additional, Tillack, A. F., additional, Vermaas, J. V., additional, Vuong, V. Q., additional, Yin, J., additional, Yoo, S., additional, Zahran, M., additional, and Zanetti-Polzi, L., additional

Published
2020
Full Text
View/download PDF

116. Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602

Author

Bouma, L. G., primary, Hartman, J. D., additional, Brahm, R., additional, Evans, P., additional, Collins, K. A., additional, Zhou, G., additional, Sarkis, P., additional, Quinn, S. N., additional, de Leon, J., additional, Livingston, J., additional, Bergmann, C., additional, Stassun, K. G., additional, Bhatti, W., additional, Winn, J. N., additional, Bakos, G. Á., additional, Abe, L., additional, Crouzet, N., additional, Dransfield, G., additional, Guillot, T., additional, Marie-Sainte, W., additional, Mékarnia, D., additional, Triaud, A. H. M. J., additional, Tinney, C. G., additional, Henning, T., additional, Espinoza, N., additional, Jordán, A., additional, Barbieri, M., additional, Nandakumar, S., additional, Trifonov, T., additional, Vines, J. I., additional, Vuckovic, M., additional, Ziegler, C., additional, Law, N., additional, Mann, A. W., additional, Ricker, G. R., additional, Vanderspek, R., additional, Seager, S., additional, Jenkins, J. M., additional, Burke, C. J., additional, Dragomir, D., additional, Levine, A. M., additional, Quintana, E. V., additional, Rodriguez, J. E., additional, Smith, J. C., additional, and Wohler, B., additional

Published
2020
Full Text
View/download PDF

117. PTFO 8-8695: Two Stars, Two Signals, No Planet

Author

Bouma, L. G., primary, Winn, J. N., additional, Ricker, G. R., additional, Vanderspek, R., additional, Latham, D. W., additional, Seager, S., additional, Jenkins, J. M., additional, Barclay, T., additional, Collins, K. A., additional, Doty, J. P., additional, Louie, D. R., additional, Quinn, S. N., additional, Rose, M. E., additional, Smith, J. C., additional, Villaseñor, J., additional, and Wohler, B., additional

Published
2020
Full Text
View/download PDF

118. A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS

Author

Astudillo-Defru, N., primary, Cloutier, R., additional, Wang, S. X., additional, Teske, J., additional, Brahm, R., additional, Hellier, C., additional, Ricker, G., additional, Vanderspek, R., additional, Latham, D., additional, Seager, S., additional, Winn, J. N., additional, Jenkins, J. M., additional, Collins, K. A., additional, Stassun, K. G., additional, Ziegler, C., additional, Almenara, J. M., additional, Anderson, D. R., additional, Artigau, E., additional, Bonfils, X., additional, Bouchy, F., additional, Briceño, C., additional, Butler, R. P., additional, Charbonneau, D., additional, Conti, D. M., additional, Crane, J., additional, Crossfield, I. J. M., additional, Davies, M., additional, Delfosse, X., additional, Díaz, R. F., additional, Doyon, R., additional, Dragomir, D., additional, Eastman, J. D., additional, Espinoza, N., additional, Essack, Z., additional, Feng, F., additional, Figueira, P., additional, Forveille, T., additional, Gan, T., additional, Glidden, A., additional, Guerrero, N., additional, Hart, R., additional, Henning, Th., additional, Horch, E. P., additional, Isopi, G., additional, Jenkins, J. S., additional, Jordán, A., additional, Kielkopf, J. F., additional, Law, N., additional, Lovis, C., additional, Mallia, F., additional, Mann, A. W., additional, de Medeiros, J. R., additional, Melo, C., additional, Mennickent, R. E., additional, Mignon, L., additional, Murgas, F., additional, Nusdeo, D. A., additional, Pepe, F., additional, Relles, H. M., additional, Rose, M., additional, Santos, N. C., additional, Ségransan, D., additional, Shectman, S., additional, Shporer, A., additional, Smith, J. C., additional, Torres, P., additional, Udry, S., additional, Villasenor, J., additional, Winters, J .G., additional, and Zhou, G., additional

Published
2020
Full Text
View/download PDF

122. Group Report: Microcircuits in the Motor System

Author

Kiehn, O., primary, Büschges, A., additional, Duch, C., additional, Grillner, S., additional, Isa, T., additional, Lansner, A., additional, Pflüger, H.-J., additional, Richter, D. W., additional, Sillar, K. T., additional, Smith, J. C., additional, and Sparks, D. L., additional

Published
2006
Full Text
View/download PDF

130. Characterization of the L 98-59 multi-planetary system with HARPS

Author

Cloutier, R., Astudillo-Defru, N., Bonfils, X., Berdiñas, Z., Ricker, G., Vanderspek, R., Latham, D. W., Seager, S., Winn, J., Jenkins, J. S., Almenara, J. M., Bouchy, F., Delfosse, X., Díaz, M. R., Díaz, R. F., Doyon, R., Figueira, P., Forveille, T., Kurtovic, N. T., Lovis, C., Mayor, M., Menou, K., Morgan, E., Morris, R., Muirhead, P., Murgas, F., Pepe, F., Santos, N. C., Ségransan, D., Smith, J. C., Tenenbaum, P., Torres, G., Udry, S., Vezie, M., Villasenor, J., Université du Québec à Rimouski (UQAR), Universidad de Concepción [Chile], Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Center for Space Research [Cambridge] (CSR), Massachusetts Institute of Technology (MIT), Universidad de Chile, Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Montréal (UdeM), Centro de Astrofísica da Universidade do Porto (CAUP), Universidade do Porto [Porto], Observatoire Astronomique de l'Université de Genève (ObsGE), Université de Genève (UNIGE), Boston University [Boston] (BU), Stanford Linear Accelerator Center (SLAC), Stanford University [Stanford], Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Universidade do Porto, SLAC National Accelerator Laboratory (SLAC), and Stanford University

Subjects
planets and satellites: terrestrial planets, stars: low-mass, [SDU]Sciences of the Universe [physics], techniques: radial velocities, Astrophysics::Earth and Planetary Astrophysics, planetary systems, stars: individual: L 98-59
Abstract

International audience; Aims: L 98-59 (TIC 307210830, TOI-175) is a nearby M3 dwarf around which TESS revealed three small transiting planets (0.80, 1.35, 1.57 Earth radii) in a compact configuration with orbital periods shorter than 7.5 days. Here we aim to measure the masses of the known transiting planets in this system using precise radial velocity (RV) measurements taken with the HARPS spectrograph. Methods: We considered both trained and untrained Gaussian process regression models of stellar activity, which are modeled simultaneously with the planetary signals. Our RV analysis was then supplemented with dynamical simulations to provide strong constraints on the planets' orbital eccentricities by requiring long-term stability. Results: We measure the planet masses of the two outermost planets to be 2.42 ± 0.35 and 2.31 ± 0.46 Earth masses, which confirms the bulk terrestrial composition of the former and eludes to a significant radius fraction in an extended gaseous envelope for the latter. We are able to place an upper limit on the mass of the smallest, innermost planet of

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results