Numerical Analysis of Microcracks of Fly Ash/Slag Concrete with Cobble as Coarse Aggregate by Songfang Xie, Mingxing Gao, Hangtian Li

“…The Monte Carlo simulation is used in the finite element solver of ANSYS to conduct the four-point bending beam test. Three-dimensional and two-dimensional finite element models are established to discuss how the gradation of large size cobbles affects the performance of the concrete by comparing macromechanical experiments. …”
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Synthesis and Characterization of Chloridobis(dimethylglyoximato)4-(2-ferrocenylvinyl)pyridinecobalt(III): A New Heterobinuclear Cobaloxime by Sebastián Pizarro, Guillermo Saá, Francisco Gajardo, Alvaro Delgadillo

“…The complex showed ferrocene-ligand charge transfer bands at 334 nm and 505 nm. TDDFT/B3LYP/6-31G(d) calculations support this assignation.…”
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Mechanical Properties of Steel Fiber-Reinforced Concrete by Vibratory Mixing Technology by Yuanxun Zheng, Xiaolong Wu, Guangxian He, Qingfang Shang, Jianguo Xu, Yikai Sun

“…As a kind of important engineering material, steel fiber-reinforced concrete was used widely in civil engineering. …”
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Investigation of Range Profiles from a Simplified Ship on Rough Sea Surface and Its Multipath Imaging Mechanisms by Siyuan He, Fan Zhang, Weidong Hu, Lei Zhuang, Xingbin Ye, Guoqiang Zhu

“…The range profiles of a two-dimension (2 D) perfect electric conductor (PEC) ship on a wind-driven rough sea surface are derived by performing an inverse discrete Fourier transform (IDFT) on the wide band backscattered field. …”
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Spectroscopic Characteristics and Color Origin of Red Tourmaline from Brazil by Ming Li

“…The results showed that the red color was confirmed by the symmetric broad absorption at 527 nm and the narrow absorption at 400 and 450 nm, and the above three absorption bands were caused by the d-d electron transition of Mn3+, which occupied the Y site in the crystal structure and coordinated with F to form bonds. …”
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Quasi-Static Test Study on Seismic Behavior of Large-Section Fabricated Utility Tunnel by Li Zhu, Shiqing Shangguan, Haitao Yu, Yawei Guo, Zheng Chen, Dong An

“…The middle joint has better bending performance. The ductility of the side joint is worse than that of the middle one. (2) The skeleton curve of the joint specimen is divided into three stages: obvious cracking, yielding, and ultimate load. …”
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A NB-IoT access scheme based on Beta distribution by Mengya LI, Zhengquan LI

“…As one of the emerging technologies of low-power wide-area Internet of things, narrow band Internet of things (NB-IoT) faces the pressure and challenge of massive connections of terminals.Aiming at practical application scenarios, a preamble allocation scheme based on Beta distribution was proposed.In this scheme, the energy consumption of each time slot device was firstly calculated.The equipment was divided into high energy consumption according to two grouping methods: average energy consumption and cumulative energy consumption.The preamble was assigned to the high-energy-consuming device group first, and the remaining preamble and the conflicting preamble of the high-energy-consuming device group were assigned to the low-energy-consuming device group.The simulation results show that compared with the traditional random allocation scheme, the proposed scheme can effectively improve the average access success rate and average throughput of the NB-IoT system, and can effectively reduce the back off time.…”
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Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection by Xiangbing Wang, Xiangxu Chai, Ping Li, Bo Zhang, Qihua Zhu, Xiaocheng Tian, Ju Wang, Zhaoyu Zong, Song Zhou, Ke Yao, Sen Li, Junpu Zhao, Zhitao Peng

“…The SRRS in the atmospheric environment excited with signal laser injection can provide wide-band light output with controllable beam quality without long-distance propagation, representing an important potential route to realization of broadband laser drivers.…”
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Characterization of Cu(II)-ACC Complexes and Conversion of the Bound ACC into Ethylene in the Presence of Hydrogen Peroxide. Detection of a Brown Intermediate at Low Temperature by Wadih Ghattas, Michel Giorgi, Christian Gaudin, Antal Rockenbauer, Marius Réglier, A. Jalila Simaan

“…Indeed, a brown intermediate with an absorption band centered at 433 nm can be detected at low temperature when 1 is treated with 10 equivalents of H2O2.…”
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Self-Supervised Deep Hyperspectral Inpainting with Plug-and-Play and Deep Image Prior Models by Shuo Li, Mehrdad Yaghoobi

“…Hyperspectral images are typically composed of hundreds of narrow and contiguous spectral bands, each containing information regarding the material composition of the imaged scene. …”
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Wax Myrtle, Morella cerifera Synonym: Myrica cerifera by Debbie Miller, Mack Thetford, Chris Verlinde, Gabriel Campbell, Ashlynn Smith

“…The fruits of wax myrtle are important for birds and other wildlife, and the plant is a larval host for the banded hairstreak and redbanded hairstreak butterflies (Satyrium calanus and Calycopis cecrops, respectively) (Lotts and Naberhaus 2017). …”
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Performance of Resource Management Techniques for Weather-Impacted Satellite Networks by Olugbenga Emmanuel Imole, Tom Mmbasu Walingo

“…Signals transmitted via satellite networks at high frequency in the Ka, Q, and V bands are susceptible to degradation due to rain attenuation. …”
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Double Grazing Periodic Motions and Bifurcations in a Vibroimpact System with Bilateral Stops by Qunhong Li, Limei Wei, Jieyan Tan, Jiezhen Xi

“…Numerical simulations show that there is a continuous transition from the chaotic band to a period-1 periodic motion, which is confirmed by the numerical simulation of the original system.…”
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Game-Theory-Based Multi-Objective Optimization for Enhancing Environmental and Social Life Cycle Assessment in Steel–Concrete Composite Bridges by David Martínez-Muñoz, Jose V. Martí, Víctor Yepes

“…A game-theory-based optimization method was applied in this research to find a sustainable steel–concrete composite bridge design. …”
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Antenna Design and Construction of a Free-Pass System for Hi-Pass Type Ticket Gates in Subways for Transportation-Disadvantaged Individuals by Yunsub Lee, Cholu Lee, Cheol Yoon, Woosu Kim

“…This paper examines the design of antennas for Hi-pass type turnstiles needed to implement a subway free-pass system targeting transportation-disadvantaged individuals. …”
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Research on microwave photonic channelization receiving technology based on dual coherent optical frequency comb by Bo CHEN, Yangyu FAN, Yongsheng GAO

“…In order to meet the future development needs of broadband communications, a microwave photonic channelization receiver based on dual coherent optical frequency comb (OFC) was proposed.The used optical frequency comb can be generated by only a dual parallel Mach-Zehnder modulator (DPMZM), which not only has high degree of flatness and out band rejection ratio, flexible and adjustable free spectrum range, but also effectively simplifies the complexity of the receiver.In the I/Q demodulation module, by the balanced detection method the second-order intermodulation distortion (IMD2) and direct current (DC) offset were effectively suppressed, and the dynamic range of the receiver was improved, at the same time, the electrical hybrid couple (EHC) and electric bandpass filter (EBPF) were used to solve the problem of image interference that is common in superheterodyne architectures.Finally it achieves channelized reception of 5 GHz bandwidth RF signals.…”
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Design of low power and high speed FFT/IFFT processor for UWB system by LIU Liang, WANG Xue-jing, YE Fan, REN Jun-yan

“…A new 128/64-point FFT/IFFT processor used in Ultra-Wide-Band（UWB） system was presented.The proces-sor,which is based on 8×8×2 mixed radix algorithm,can deal with multiple inputs more efficiently for MIMO applica-tions.A new eight-path-feedback structure,which can provide a higher throughput and lower power dissipation,was proposed.The test chip has been fabricated using SMIC 0.13μm single-poly and eight-metal CMOS process with a core area of 1.44mm2.The throughput of this chip is up to 1Gsample/s,and the power dissipation is 39.6mW when it works at the throughput of 500Msample/s which meets the UWB standard.This chip reduces 40% of core area and saves 45% of power dissipation compared with those existing 128-point FFT processors.…”
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QUANTITATIVE DETECTION METHOD OF ASSEMBLY TIGHTNESS OF BOLTED ROTOR BASED ON GHM MULTIWAVELET by YAN Qiang, ZHANG XiaoLi, ZHAO JunFeng, YANG Ji, SHEN YanBin

“…The quantitative detection index of assembly quality was defined by the relative energy band distribution based on multiwavelet. The experimental verification shows that the proposed method can accurately identify six kinds of bolt states from tightness to looseness.…”
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Surface crystal-orientation-dependent second-order nonlinear optical properties of cubic boron arsenide (c-BAs) by Lipeng Zhu, Yachao Ma, Chuyi Zhou, Tanwen Lai, Aochi Jia, Yipeng Zheng, Kaili Ren, Dongdong Han, Jun Dong, Ze Xue, Yani Ren, Qiyi Zhao, Chuan He, Jiming Zheng

“…Herein, the electronic, linear, and nonlinear second-order optical properties have been systematically investigated by the first principles calculation method. The energy band structure demonstrates that c-BAs is an indirect bandgap semiconductor. …”
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Vibration Analysis of a Piecewise-Smooth System with Negative Stiffness under Delayed Feedback Control by Dongmei Huang, Wei Li, Guidong Yang, Meijuan He, Hong Dang

“…The principal resonance of a delayed piecewise-smooth (DPWS) system with negative stiffness under narrow-band random excitation is investigated in aspects of multiscale analysis, design methodology of the controller, and response properties. …”
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