Wideband RCS Reduction of Microstrip Array Antenna Based on Absorptive Frequency Selective Surface and Microstrip Resonators by Jingjing Xue, Wen Jiang, Shuxi Gong

“…An approach for wideband radar cross section (RCS) reduction of a microstrip array antenna is presented and discussed. …”
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A Wideband Printed Directional Antenna Array with Impedance Regulating Load by Chun-Ying Kang, Shu Lin, Li-Wen Jing, Yu Tian, Jia-Xin Dong, Jia Lu

“…To enhance the antenna bandwidth, we introduced a section of loading metal strip. The antenna prototype has a S11 lower than −10 dB within the 1.5 GHz to 2.52 GHz frequency band, particularly from 2.01 GHz to 2.50 GHz, the S11 is lower than −15 dB. …”
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Analysis of the defect mode features in an asymmetric and symmetric acoustic system using expansion chambers by Ilyas Antraoui, Ali Khettabi, Mohammed Sallah, Zaky A. Zaky

“…In the asymmetrical structure, the consistent peak height depends on the variance in the cross-section of the defect guide. Moreover, the impact of the defect guide’s length on the number of consistent peaks that appear in the band gap will be examined. …”
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CALCULATION OF STATIC PARAMETERS OF SILICON DIODE CONTAINING δ-LAYER OF TRIPLE-CHARGED POINT DEFECTS IN SYMMETRIC p–n-JUNCTION by N. A. Poklonski, A. I. Kovalev, N. I. Gorbachuk, S. V. Shpakovski

“…It was assumed that the cross-section for v-band hole capture on t-defects is greater than the cross-section for c-band electron capture on t-defects.The system of stationary nonlinear differential equations, which describe in the drift-diffusion approximation a migration of electrons and holes in semiconductors, is solved numerically. …”
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Integration of Resonant Coil for Wireless Power Transfer and Implantable Antenna for Signal Transfer by Dong-Wook Seo, Jae-Ho Lee, Hyungsoo Lee

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Wideband Polarization Conversion Metasurface for RCS Reduction of Antennas by Tao Hong, Ke Peng, Yue Gu, Wen Jiang, Shuxi Gong

“…Polarization conversion metasurface (PCM) with wide operating band and high polarization conversion ratio is proposed for antenna radar cross-section (RCS) reduction. …”
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Potential Properties of Plant Sprout Extracts on Amyloid β by Mizue Okada, Yoshinori Okada

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A New Method for the Calibration of Site-Related Response Spectra by Xin Han, Shun Yang, Jingshan Bo, Chaoyu Chang, Mei Guo, Yimeng Cai

“…The seismic acceleration response spectra are statistically analyzed in the random period bands in the form of regression analysis, and the fitting indices in each frequency band under 11 different functions are given. …”
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Spin transport properties in a topological insulator sandwiched between two-dimensional magnetic layers by Nezhat Pournaghavi, Banasree Sadhukhan, Anna Delin

“…Abstract Non-trivial band topology along with magnetism leads to different novel quantum phases. …”
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Extra-Hepatic Portal Venous Obstruction in Pregnant Women of South-Asian Descent: A Case Series by Nimmi Amala, Akshaya Murali, Annamma Thomas

“…Two women underwent Endoscopic band ligation for esophageal varices and one woman underwent splenectomy before pregnancy for disease control. …”
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Extraction of Least-Dispersive Ultrasonic Guided Wave Mode in Rail Track Based on Floquet-Bloch Theory by Maodan Yuan, Peter W. Tse, Weiming Xuan, Wenjin Xu

“…With a carefully designed 2D bandpass filter, a specific mode W0 was extracted in the wavenumber-frequency domain. Finally, a frequency band sweep technique was also proposed to get the optimal frequency band to achieve a pure and least-dispersive UGW mode along the rail web. …”
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Er³⁺,Yb³⁺:YGdSiO₅ Crystal as Gain Media for Lasers Emitting in the Spectral Range of 1.5–1.6 µm by K. N. Gorbachenya, A. S. Yasukevich, V. E. Kisel, N. A. Tolstik, A. A. Tarachenko, V. I. Homan, L. K. Pavlovskiy, V. A. Orlovich, E. A. Volkova, V. O. Yapaskurt, N. V. Kuleshov

“…It was shown that excited state absorption band does not overlap with gain band in the range 1.5–1.6 µm. …”
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Suppression of Specular Reflections by Metasurface with Engineered Nonuniform Distribution of Reflection Phase by Xin Mi Yang, Ge Lan Jiang, Xue Guan Liu, Cheng Xiang Weng

“…We make preliminary investigations on a new approach to reducing radar cross section (RCS) of conducting objects. This approach employs novel planar metasurfaces characterizing nonuniform distribution of reflection phase. …”
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Low-Interference Dual Resonant Antenna Configurations for Multistandard Multifunction Handsets and Portable Computers by Mohamed Sanad, Noha Hassan

“…The most effective factor on the interference between the low-band and high-band antennas is their relative orientations. …”
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Quantum size effects and tailoring the electron energy levels in semiconductors: comparison study on Al x Ga 1-x As and Ga x In 1-x As quantum wires by M. K. Abu-Assy, Fatin Fadhel Mahmood, Z. A. El-Wahab

“…The electron energy dispersion in Al x Ga 1-x As and Ga x In 1-x As quantum wires of 100 nm2 cross-section area, x = 0.4 for E 1 , E 2 and E 3 with the wave vector value has been investigated. …”
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A Case Report of Bowel Perforation in a Gravid COVID-19 Patient by A. T. Guiritan, J. G. Cataluña

“…An emergency repeat cesarean section was performed due to maternal deterioration and poor variability of the fetus. …”
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Wind Turbine Clutter Mitigation in Coastal UHF Radar by Jing Yang, Chao Pan, Caijun Wang, Dapeng Jiang, Biyang Wen

“…The size of a wind turbine is much larger than the wavelength of radio waves at UHF band, which results in large radar cross section. …”
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Double Meander Dipole Antenna Array with Enhanced Bandwidth and Gain by Halgurd N. Awl, Rashad H. Mahmud, Bakhtiar A. Karim, Yadgar I. Abdulkarim, Muharrem Karaaslan, Lianwen Deng, Heng Luo

“…Two in-phase resonant frequencies in the Ku-band (12–18 GHz) could be achieved in the double meander dipole array structure, which lead to enhance impedance bandwidth without costing extra design section. …”
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Low-RCS, Circular Polarization, and High-Gain Broadband Antenna Based on Mirror Polarization Conversion Metasurfaces by Liang Zhang, Changqing Liu, Chun Ni, Meng Kong, Xianliang Wu

“…It achieves circular polarization (CP) and effectively reduces the radar cross section (RCS) and increases gain in the entire x-band. …”
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Using Flexible Polyimide as a Substrate to Deposit ZnO:Ga Thin Films and Fabricate p-i-n α-Si:H Thin-Film Solar Cells by Fang-Hsing Wang, Cheng-Fu Yang, Min-Chu Liu

“…The value variations in the films’ optical band gap (Eg) of the GZO thin films were evaluated from plots of  (αhν)2=c(hν-Eg), revealing that the measured Eg values increased with increasing deposition temperature. …”
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