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298 results on '"Guo, Y. C."'

118. Multiple models track algorithm for radar with high pulse-repetition frequency in frequency-modulated ranging mode.

Author

Liu, Z. L., Guo, Y. C., Zhang, G. Y., and Xu, J. F.

Subjects
*PULSE frequency modulation, *TRACKING radar, *ESTIMATION theory, *ELECTRONIC pulse techniques, *PULSE-code modulation
Abstract

When the airborne fire control radar operates with the high pulse-repetition frequency (PRF) in the frequency-modulated ranging mode, the range measurement is ambiguous. Here, the problem of target range estimation and ambiguity resolving is converted to the problem of static multiple models estimation and decision. Frequency and pseudo-range measurements are used to update each model of the target with the probabilistic data association and tracking filter. The method to select the PRF used to detect the target is also suggested according to the state estimates of the survived models. Simulation results demonstrate the improved accuracy and convergence when compared with the conventional methods. [ABSTRACT FROM AUTHOR]

Published
2007
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119. Internet+ and COVID-19 - A short report.

Author

CHEN, J., GUO, Y.-C., YE, L., ZHOU, M.-Y., CHENG, Y.-R., WANG, M.-W., and FENG, Z.-H.

Abstract

OBJECTIVE: COVID-19 broke out in China at the end of 2019 and spread rapidly around the world. The World Health Organization designated COVID-19 as a global pandemic on March 11, 2020. China has adopted its own country-specific comprehensive prevention and control measures, and, as a result, the domestic COVID-19 epidemic became effectively controlled in China in mid-March 2020. During the COVID-19 epidemic, remarkable changes have taken place in China's domestic learning, living, and working methods, primarily in terms of the synergy between the Internet Plus (Internet+) strategy and the leadership of the Chinese government. [ABSTRACT FROM AUTHOR]

Published
2020

120. Small Angle Grain Boundary in YBa[sub 2]Cu[sub 3]O[sub y] Superconductor.

Author

Chen, Wu Ming, Huang, J. W., Jiang, S. S., Guo, Y. C., Liu, H. K., and Dou, S. X.

Subjects
SUPERCONDUCTORS, CRYSTAL grain boundaries, CRYSTAL growth
Abstract

Electron diffraction spots splitting into three is an unusual phenomenon. Based on the analysis of crystal structure, the splitting is believed due to some neighboring crystal cells grow along a small angle θ, rather than along a parallel direction as in general case. When a crystal grows along two neighboring boundaries with a small angle, the distance of the two boundaries increases as well. When the distance of the two boundaries reaches as large as a cell constant, a new cell will grow in the site, which is called an edge dislocation. According to the geometric relation of the reciprocal space, small angle grain boundaries can be calculated from the corresponding splitting spots. In this work, two small angles θ are determined to be -2.5° and 3.0°, respectively. Obviously, the grain with small angle grain boundaries has a curved surface and the curvature of the surface is determined by the density of the edge dislocation. The corresponding parameters of the edge dislocation are calculated. Both the edge dislocation and the neighboring cells growing along a small angle are a growing mechanism of YBa[sub 2]Cu[sub 3]O[sub y] and this mechanism is responsible for the curved grain surface. [ABSTRACT FROM AUTHOR]

Published
1999
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129. Visualization Method for Fingerprints on Skin by Impression on a Polyethylene Terephthalate (PET) Semirigid Sheet

Author

Guo, Y-C and Xing, L-P

Abstract

Based on the phenomenon that static electricity attracts dust, a polyethylene terephthalate (PET) semirigid sheet coated with printing ink was used to visualize impressions of fingerprints on the skin of living and dead bodies. Compared with visualization methods for perspiration fingerprints, this method recovers better images for a longer time after the fingerprint has been deposited on skin. Fingerprints transferred to the PET sheet are photographed with sidelighting using an ordinary light source. For fingerprints that yield inadequate contrast, an argon-ion laser can be used to improve the contrast.

Published
1992
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130. Microstructures, Jc and flux pinning in Ag─Clad Bi─Pb─Sr─Ca─Cu─O wires

Author

Dou, S. X., Guo, Y. C., and Liu, H. K.

Abstract

High critical current density (Jc) and improved Jc-magnetic field dependence have been achieved in Ag-clad (Bi, Pb)2Sr2Ca2Cu3O10+x (2223) wires. Complex AC susceptibility measurements under DC magnetic fields have revealed that the irreversibility temperature scaled with the applied field according to H1/3, in contrast with YBa2Cu3O7-x but in accordance with bulk Bi-based and Tl-based materials. The presence of a fraction of highly dispersed 2212 appears to have a beneficial effect on flux pinning.

Published
1993
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140. On the current transport limitations in Bi-based high temperature superconducting tapes.

Author

To¨nies, S., Weber, H. W., Guo, Y. C., Dou, S. X., Sawh, R., and Weinstein, R.

Subjects
CRITICAL currents, SUPERCONDUCTORS, CRYSTAL grain boundaries, FLUX pinning, ELECTRONIC equipment
Abstract

The transport critical current densities, J[sub c], of superconducting (Bi, Pb)[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub x]/Ag tapes were measured before and after employing a special radiation technique, which leaves the grain boundary properties largely unaffected. We identify two regions separated by a temperature dependent crossover field H[sub gb-p]. In the low field region, J[sub c] is limited by the transport currents across the grain boundaries, which remain unchanged after irradiation. Above H[sub gb-p], J[sub c] is limited by flux pinning. In this field region, the artificial defects optimize flux pinning and enhance J[sub c]. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001
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147. The Large Hadron-Electron Collider at the HL-LHC

Author

Agostini, P., Aksakal, H., Alan, H., Alekhin, S., Allport, P. P., Andari, N., Andre, K. D. J., Angal-Kalinin, D., Antusch, S., Aperio Bella, L., Apolinario, L., Apsimon, R., Apyan, A., Arduini, G., Ari, V., Armbruster, A., Armesto, N., Auchmann, B., Aulenbacher, K., Azuelos, G., Backovic, S., Bailey, I., Bailey, S., Balli, F., Behera, S., Behnke, O., Ben-Zvi, I., Benedikt, M., Bernauer, J., Bertolucci, S., Biswal, S. S., Blümlein, Johannes, Bogacz, A., Bonvini, M., Boonekamp, M., Bordry, F., Boroun, G. R., Bottura, L., Bousson, S., Bouzas, A. O., Bracco, C., Bracinik, J., Britzger, D., Brodsky, S. J., Bruni, C., Brüning, O., Burkhardt, H., Cakir, O., Calaga, R., Caldwell, A., Calıskan, A., Camarda, S., Catalan-Lasheras, N. C., Cassou, K., Cepila, J., Cetinkaya, V., Chetvertkova, V., Cole, B., Coleppa, B., Cooper-Sarkar, A., Cormier, E., Cornell, A. S., Corsini, R., Cruz-Alaniz, E., Currie, J., Curtin, D., D'Onofrio, M., Dainton, J., Daly, E., Das, A., Das, S. P., Dassa, L., De Blas, J., Delle Rose, L., Denizli, H., Deshpande, K. S., Douglas, D., Duarte, L., Dupraz, K., Dutta, S., Efremov, A. V., Eichhorn, R., Eskola, K. J., Ferreiro, E. G., Fischer, O., Flores-Sánchez, O., Forte, S., Gaddi, A., Gao, J., Gehrmann, T., Gehrmann-De Ridder, A., Gerigk, F., Gilbert, A., Giuli, F., Glazov, Alexander, Glover, N., Godbole, R. M., Goddard, B., Gonçalves, V., Gonzalez-Sprinberg, G. A., Goyal, A., Grames, J., Granados, E., Grassellino, A., Gunaydin, Y. O., Guo, Y. C., Guzey, V., Gwenlan, C., Hammad, A., Han, C. C., Harland-Lang, L., Haug, F., Hautmann, F., Hayden, D., Hessler, J., Helenius, I., Henry, J., Hernandez-Sanchez, J., Hesari, H., Hobbs, T. J., Hod, N., Hoffstaetter, G. H., Holzer, B., Honorato, C. G., Hounsell, B., Hu, N., Hug, F., Huss, A., Hutton, A., Islam, R., Iwamoto, S., Jana, S., Jansova, M., Jensen, E., Jones, T., Jowett, J. M., Kaabi, W., Kado, M., Kalinin, D. A., Karadeniz, H., Kawaguchi, S., Kaya, U., Khalek, R. A., Khanpour, H., Kilic, A., Klein, M., Klein, U., Kluth, S., Köksal, M., Kocak, F., Korostelev, M., Kostka, P., Krelina, M., Kretzschmar, J., Kuday, S., Kulipanov, G., Kumar, M., Kuze, M., Lappi, T., Larios, F., Latina, A., Laycock, P., Lei, G., Levitchev, E., Levonian, Serguei V., Levy, A., Li, R., Li, X., Liang, H., Litvinenko, V., Liu, M., Liu, T., Liu, W., Liu, Y., Liuti, S., Lobodzinska, Ewelina, Longuevergne, D., Luo, X., Ma, W., Machado, M., Mandal, S., Mäntysaari, H., Marhauser, F., Marquet, C., Martens, A., Martin, R., Marzani, S., McFayden, J., Mcintosh, P., Mellado, B., Meot, F., Milanese, A., Milhano, J. G., Militsyn, B., Mitra, M., Moch, S., Mohammadi Najafabadi, M., Mondal, S., Moretti, S., Morgan, T., Morreale, A., Nadolsky, P., Navarra, F., Nergiz, Z., Newman, P., Niehues, J., Nissen, E. A., Nowakowski, M., Okada, N., Olivier, G., Olness, F., Olry, G., Osborne, J. A., Ozansoy, A., Pan, R., Parker, B., Patra, M., Paukkunen, H., Peinaud, Y., Pellegrini, D., Perez-Segurana, G., Perini, D., Perrot, L., Pietralla, N., Pilicer, E., Pire, B., Pires, J., Placakyte, R., Poelker, M., Polifka, R., Polini, A., Poulose, P., Pownall, G., Pupkov, Y. A., Queiroz, F. S., Rabbertz, K., Radescu, V., Rahaman, R., Rai, S. K., Raicevic, N., Ratoff, P., Rashed, A., Raut, D., Raychaudhuri, S., Repond, J., Rezaeian, A. H., Rimmer, R., Rinolfi, L., Rojo, J., Rosado, A., Ruan, X., Russenschuck, S., Sahin, M., Salgado, C. A., Sampayo, O. A., Satendra, K., Satyanarayan, N., Schenke, B., Schirm, K., Schopper, H., Schott, M., Schulte, D., Schwanenberger, C., Sekine, T., Senol, A., Seryi, A., Setiniyaz, S., Shang, L., Shen, X., Shipman, N., Sinha, N., Slominski, W., Smith, S., Solans, C., Song, M., Spiesberger, H., Stanyard, J., Starostenko, A., Stasto, A., Stocchi, A., Strikman, M., Stuart, M. J., Sultansoy, S., Sun, H., Sutton, M., Szymanowski, L., Tapan, I., Tapia-Takaki, D., Tanaka, M., Tang, Y., Tasci, A. T., Ten-Kate, A. T., Thonet, P., Tomas-Garcia, R., Tommasini, D., Trbojevic, D., Trott, M., Tsurin, I., Tudora, A., Turk Cakir, I., Tywoniuk, K., Vallerand, C., Valloni, A., Verney, D., Vilella, E., Walker, D., Wallon, S., Wang, B., Wang, K., Wang, X., Wang, Z. S., Wei, H., Welsch, C., Willering, G., Williams, P. H., Wollmann, D., Xiaohao, C., Xu, T., Yaguna, C. E., Yamaguchi, Y., Yamazaki, Y., Yang, H., Yilmaz, A., Yock, P., Yue, C. X., Zadeh, S. G., Zenaiev, O., Zhang, C., Zhang, J., Zhang, R., Zhang, Z., Zhu, G., Zhu, S., Zimmermann, F., Zomer, F., Zurita, J., and Zurita, P.

Subjects
energy recovery, lepton nucleus: scattering, parton: distribution function, nucleus: structure function, ion: beam, 7. Clean energy, electron p: scattering, electron: linear accelerator, electron hadron: scattering, deep inelastic scattering, CERN LHC Coll: upgrade, quantum chromodynamics, FCC, structure, electron: beam, Nuclear Experiment, detector: design, lattice, electroweak interaction, new physics, superconductivity, resolution, sensitivity, calibration, buildings, magnet, electron p: colliding beams, electron nucleus: colliding beams, 13. Climate action, kinematics, final state: hadronic, LHeC, p: distribution function, Physics::Accelerator Physics, High Energy Physics::Experiment, vertex: primary, parton: density, numerical calculations: Monte Carlo, current: high, acceptance
Abstract

The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High Luminosity--Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron-proton and proton-proton operation. This report represents an update of the Conceptual Design Report (CDR) of the LHeC, published in 2012. It comprises new results on parton structure of the proton and heavier nuclei, QCD dynamics, electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics in extending the accessible kinematic range in lepton-nucleus scattering by several orders of magnitude. Due to enhanced luminosity, large energy and the cleanliness of the hadronic final states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, the report represents a detailed updated design of the energy recovery electron linac (ERL) including new lattice, magnet, superconducting radio frequency technology and further components. Challenges of energy recovery are described and the lower energy, high current, 3-turn ERL facility, PERLE at Orsay, is presented which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution and calibration goals which arise from the Higgs and parton density function physics programmes. The paper also presents novel results on the Future Circular Collider in electron-hadron mode, FCC-eh, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies.

148. The Large Hadron-Electron Collider at the HL-LHC

Author

Agostini, P., Aksakal, H., Alekhin, S., Allport, P. P., Andari, N., Andre, K. D. J., Angal-Kalinin, D., Antusch, S., Aperio Bella, L., Apolinario, L., Apsimon, R., Apyan, A., Arduini, G., Ari, V., Armbruster, A., Armesto, N., Auchmann, B., Aulenbacher, K., Azuelos, G., Backovic, S., Bailey, I., Bailey, S., Balli, F., Behera, S., Behnke, Olaf, Ben-Zvi, I., Benedikt, M., Bernauer, J., Bertolucci, S., Biswal, S. S., Bl��mlein, J., Bogacz, A., Bonvini, M., Boonekamp, M., Bordry, F., Boroun, G. R., Bottura, L., Bousson, S., Bouzas, A. O., Bracco, C., Bracinik, J., Britzger, D., Brodsky, S. J., Bruni, C., Br��ning, O., Burkhardt, H., Cakir, O., Calaga, R., Caldwell, A., Cal��skan, A., Camarda, S., Catalan-Lasheras, N. C., Cassou, K., Cepila, J., Cetinkaya, V., Chetvertkova, V., Cole, B., Coleppa, B., Cooper-Sarkar, A., Cormier, E., Cornell, A. S., Corsini, R., Cruz-Alaniz, E., Currie, J., Curtin, D., D'Onofrio, M., Dainton, J., Daly, E., Das, A., Das, S. P., Dassa, L., de Blas, J., Delle Rose, L., Denizli, H., Deshpande, K. S., Douglas, D., Duarte, L., Dupraz, K., Dutta, S., Efremov, A. V., Eichhorn, R., Eskola, K. J., Ferreiro, E. G., Fischer, O., Flores-S��nchez, O., Forte, S., Gaddi, A., Gao, J., Gehrmann, T., Gehrmann-De Ridder, A., Gerigk, F., Gilbert, A., Giuli, F., Glazov, A., Glover, N., Godbole, R. M., Goddard, B., Gon��alves, V., Gonzalez-Sprinberg, G. A., Goyal, A., Grames, J., Granados, E., Grassellino, A., Gunaydin, Y. O., Guo, Y. C., Guzey, V., Gwenlan, C., Hammad, A., Han, C. C., Harland-Lang, L., Haug, F., Hautmann, Francesco, Hayden, D., Hessler, J., Helenius, I., Henry, J., Hernandez-Sanchez, J., Hesari, H., Hobbs, T. J., Hod, N., Hoffstaetter, G. H., Holzer, B., Honorato, C. G., Hounsell, B., Hu, N., Hug, F., Huss, A., Hutton, A., Islam, R., Iwamoto, S., Jana, S., Jansova, M., Jensen, E., Jones, T., Jowett, J. M., Kaabi, W., Kado, M., Kalinin, D. A., Karadeniz, H., Kawaguchi, S., Kaya, U., Khalek, R. A., Khanpour, H., Kilic, A., Klein, M., Klein, U., Kluth, S., K��ksal, M., Kocak, F., Korostelev, M., Kostka, P., Krelina, M., Kretzschmar, J., Kuday, S., Kulipanov, G., Kumar, M., Kuze, M., Lappi, T., Larios, F., Latina, A., Laycock, P., Lei, G., Levitchev, E., Levonian, S., Levy, Aharon, Li, R., Li, X., Liang, H., Litvinenko, V., Liu, M., Liu, T., Liu, W., Liu, Y., Liuti, S., Lobodzinska, E., Longuevergne, D., Luo, X., Ma, W., Machado, M., Mandal, S., M��ntysaari, H., Marhauser, F., Marquet, C., Martens, A., Martin, R., Marzani, S., McFayden, J., Mcintosh, P., Mellado, B., Meot, F., Milanese, A., Milhano, J. G., Militsyn, B., Mitra, M., Moch, S., Mohammadi Najafabadi, M., Mondal, S., Moretti, S., Morgan, T., Morreale, A., Nadolsky, P., Navarra, F., Nergiz, Z., Newman, P., Niehues, J., Nissen, E. A., Nowakowski, M., Okada, N., Olivier, G., Olness, F., Olry, G., Osborne, J. A., Ozansoy, A., Pan, R., Parker, B., Patra, M., Paukkunen, H., Peinaud, Y., Pellegrini, D., Perez-Segurana, G., Perini, D., Perrot, L., Pietralla, N., Pilicer, E., Pire, B., Pires, J., Placakyte, R., Poelker, M., Polifka, R., Polini, A., Poulose, P., Pownall, G., Pupkov, Y. A., Queiroz, F. S., Rabbertz, K., Radescu, V., Rahaman, R., Rai, S. K., Raicevic, N., Ratoff, P., Rashed, A., Raut, D., Raychaudhuri, S., Repond, J., Rezaeian, A. H., Rimmer, R., Rinolfi, L., Rojo, J., Rosado, A., Ruan, X., Russenschuck, S., Sahin, M., Salgado, C. A., Sampayo, O. A., Satendra, K., Satyanarayan, N., Schenke, B., Schirm, K., Schopper, H., Schott, M., Schulte, D., Schwanenberger, C., Sekine, T., Senol, A., Seryi, A., Setiniyaz, S., Shang, L., Shen, X., Shipman, N., Sinha, N., Slominski, W., Smith, S., Solans, C., Song, M., Spiesberger, H., Stanyard, J., Starostenko, A., Stasto, A., Stocchi, A., Strikman, M., Stuart, M. J., Sultansoy, S., Sun, H., Sutton, M., Szymanowski, L., Tapan, I., Tapia-Takaki, D., Tanaka, M., Tang, Y., Tasci, A. T., Ten-Kate, A. T., Thonet, P., Tomas-Garcia, R., Tommasini, D., Trbojevic, D., Trott, M., Tsurin, I., Tudora, A., Turk Cakir, I., Tywoniuk, K., Vallerand, C., Valloni, A., Verney, D., Vilella, E., Walker, D., Wallon, S., Wang, B., Wang, K., Wang, X., Wang, Z. S., Wei, H., Welsch, C., Willering, G., Williams, P. H., Wollmann, D., Xiaohao, C., Xu, T., Yaguna, C. E., Yamaguchi, Y., Yamazaki, Y., Yang, H., Yilmaz, A., Yock, P., Yue, C. X., Zadeh, S. G., Zenaiev, O., Zhang, C., Zhang, J., Zhang, R., Zhang, Z., Zhu, G., Zhu, S., Zimmermann, F., Zomer, F., Zurita, J., and Zurita, P.

Subjects
energy recovery, lepton nucleus: scattering, parton: distribution function, nucleus: structure function, ion: beam, 7. Clean energy, electron p: scattering, electron: linear accelerator, electron hadron: scattering, deep inelastic scattering, CERN LHC Coll: upgrade, quantum chromodynamics, FCC, structure, electron: beam, detector: design, lattice, electroweak interaction, new physics, superconductivity, resolution, sensitivity, calibration, buildings, magnet, electron p: colliding beams, electron nucleus: colliding beams, 13. Climate action, kinematics, final state: hadronic, LHeC, p: distribution function, vertex: primary, parton: density, numerical calculations: Monte Carlo, current: high, acceptance
Abstract

Journal of physics / G 48(11), 110501 (2021). doi:10.1088/1361-6471/abf3ba, The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High Luminosity--Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron-proton and proton-proton operation. This report represents an update of the Conceptual Design Report (CDR) of the LHeC, published in 2012. It comprises new results on parton structure of the proton and heavier nuclei, QCD dynamics, electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics in extending the accessible kinematic range in lepton-nucleus scattering by several orders of magnitude. Due to enhanced luminosity, large energy and the cleanliness of the hadronic final states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, the report represents a detailed updated design of the energy recovery electron linac (ERL) including new lattice, magnet, superconducting radio frequency technology and further components. Challenges of energy recovery are described and the lower energy, high current, 3-turn ERL facility, PERLE at Orsay, is presented which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution and calibration goals which arise from the Higgs and parton density function physics programmes. The paper also presents novel results on the Future Circular Collider in electron-hadron mode, FCC-eh, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies., Published by IOP Publ., Bristol

149. A HIGH EFFICIENCY AND GAIN DOHERTY AMPLIFIER FOR WIRELESS MOBILE BASE STATIONS.

Author

Chen, X. Q., Guo, Y. C., and Shi, X. W.

Subjects
*WIRELESS LANs, *MICROWAVE amplifiers, *LOCAL area networks, *POWER amplifiers, *TOPOLOGY, *MICROWAVE devices, *LINEAR electric circuits, *SYSTEMS design, *MICROWAVE communication systems
Abstract

The article focuses on the high gain and efficiency Doherty amplifier for wireless local area network (WLAN) mobile base stations. It involves three advanced methods which include Doherty amplifier is developed with uneven power drive, a special inverted Doherty topology is proposed in order to optimize the average efficiency of the Doherty amplifier, and a three-stage structure is adopted to increase the total gain. It states that the Freescale MFR6S21050L device was used to satisfy linearity and efficiency of Doherty power amplifier.

Published
2008

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