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1,833 results on '"Chen, S L"'

204. Reconfigurable Antenna Arrays for Integrated Space and Terrestrial Networks

Author

Guo, YJ, Chen, S-L, and Liu, Y

Abstract

Integrated space and terrestrial networks are expected to be a key technology for beyond 5G communications systems. One main challenge posed for the antennas is the array performance deterioration caused by orientation changes of various elements mounted to conformal platforms. To overcome this challenge, a reconfigurable antenna element that can switch among four linear polarizations is reported and applied to a conformal array. An efficient array synthesis algorithm is utilized to attain high-gain, low-sidelobes, and low-cross-polarization characteristics. A linear conformal array is presented to verify the effectiveness of the developed algorithm.

Published
2021

214. A measurement technique for verifying the match condition of assembled RFID tags

Author

Chen, S.-L., Lin, K.-H., and Mittra, R.

Subjects
Standard IC, Radio frequency identification, Electromagnetic fields -- Analysis, Impedance (Electricity) -- Measurement, Integrated circuits -- Models, Semiconductor chips -- Models, Radio frequency identification (RFID) -- Design and construction
Published
2010

221. Polymer microring resonators for high-sensitivity and wideband photoacoustic imaging

Author

Chen. S.-L., Huang, S.-W., Ling, T., Ashkenazi, S., and Guo, L.J.

Subjects
Diagnostic imaging -- Analysis, Polymers -- Acoustic properties, Polymers -- Optical properties, Tissues -- Optical properties, Tissues -- Mechanical properties, Ultrasound imaging -- Analysis, Business, Electronics, Electronics and electrical industries
Published
2009

222. Simulation of disruptions in East tokamak

Author

Chen, S. L., Villone, F., Sun, Y. W., Xiao, B. J., Isernia, N., Guglielmo RUBINACCI, Ventre, S., Chen, S. L., Villone, F., Sun, Y. W., Xiao, B. J., Isernia, N., Rubinacci, G., and Ventre, S.

Published
2019

230. Effect of Crystal Symmetry on the Spin States of Fe3+and Vibration Modes in Lead-free Double-Perovskite Cs2AgBi(Fe)Br6

Author

Puttisong, Y, Moro, F, Chen, S, Hojer, P, Ning, W, Gao, F, Buyanova, I, Chen, W, Puttisong Y., Moro F., Chen S. L., Hojer P., Ning W., Gao F., Buyanova I. A., Chen W. M., Puttisong, Y, Moro, F, Chen, S, Hojer, P, Ning, W, Gao, F, Buyanova, I, Chen, W, Puttisong Y., Moro F., Chen S. L., Hojer P., Ning W., Gao F., Buyanova I. A., and Chen W. M.

Abstract

We show by electron spin resonance (ESR) and Raman spectroscopies that the crystal phase transition of the lead-free double-perovskite Cs2AgBiBr6 has a profound symmetry-breaking effect on the high spin states of, for example, a transition-metal ion Fe3+ and the vibrational modes. It lifts their degeneracy when the crystal undergoes the cubic-tetragonal phase transition, splitting the six-fold degenerate S = 5/2 state of Fe3+ to three Kramer doublets and the enharmonic breathing mode Tg of the MBr6 octahedra (M = Ag, Bi, Fe) into Eg + Ag. The magnitudes of both spin and Raman line splitting are shown to directly correlate with the strength of the tetragonal strain field. This work, in turn, demonstrates the power of the ESR and Raman spectroscopies in probing structural phase transitions and in providing in-depth information on the interplay between the structural, spin, and vibrational properties of lead-free double perovskites, a newly emerging and promising class of materials for low-cost and high-efficiency photovoltaics and optoelectronics.

Published
2020

242. HLA-B13:01 and the Dapsone Hypersensitivity Syndrome

Author

Zhang, F.-R., Liu, H., Irwanto, A., Fu, X.-A., Li, Y., Yu, G.-Q., Yu, Y.-X., Chen, M.-F., Low, H.-Q., Li, J.-H., Bao, F.-F., Foo, J.-N., Bei, J.-X., Jia, X.-M., Liu, J., Liany, H., Wang, N., Niu, G.-Y., Wang, Z.-Z., Shi, B.-Q., Tian, H.-Q., Liu, H.-X., Ma, S.-S., Zhou, Y., You, J.-B., Yang, Q., Wang, C., Chu, T.-S., Liu, D.-C., Yu, X.-L., Sun, Y.-H., Ning, Y., Wei, Z.-H., Chen, S.-L., Chen, X.-C., Zhang, Z.-X., Liu, Y.-X., Pulit, S. L., Wu, W.-B., Zheng, Z.-Y., Yang, R.-D., Long, H., Liu, Z.-S., Wang, J.-Q., Li, M., Zhang, L.-H., Wang, H., Wang, L.-M., Xiao, P., Li, J.-L., Huang, Z.-M., Huang, J.-X., Li, Z., Xiong, L., Yang, J., Wang, X.-D., Yu, D.-B., Lu, X.-M., Zhou, G.-Z., Yan, L.-B., Shen, J.-P., Zhang, G.-C., Zeng, Y.-X., de Bakker, P. I., Chen, S.-M., and Liu, J.-J.

Published
2013
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