ASYMMETRIC

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Construction Monitoring and Analysis of Asymmetric Prestressed Concrete Bridge Crossing Multiple-Line Railways
《Structural Durability & Health Monitoring》2025年第2期385-398,共14页Yi Wang Bing Wang Changwen Li Feng Zheng Yong Liu Shaohua He 
The Guangdong Basic and Applied Basic Research Foundation(Grant#2023A1515010535).
Complex bridge structures designed and constructed by humans often necessitate extensive on-site execution,which carries inherent risks.Consequently,a variety of engineering practices are employed to monitor bridge co...
关键词：Continuous girder bridge construction monitoring bridge alignment stress monitoring 
Phase distortion correction of fringe patterns in spaceborne Doppler asymmetric spatial heterodyne interferometry
《中国光学(中英文)》2025年第2期382-392,共11页PEI Hui-yi JIANG Lun WANG Jin-jiang CUI Yong FANG Yuan-xiang ZHANG Jia-ming CHEN Ci 
吉林省科技发展计划项目(No.20230201006GX)。
As an advanced device for observing atmospheric winds,the spaceborne Doppler Asymmetric Spatial Heterodyne(DASH)interferometer also encounters challenges associated with phase distortion,par-ticularly in limb sounding...
关键词：Doppler asymmetric spatial heterodyne spectroscopy phase distortion phase inversion atmospheric wind measurement 
Dynamic analysis of asymmetric piecewise linear systems
《Applied Mathematics and Mechanics(English Edition)》2025年第4期633-646,共14页Ruiliang ZHANG Yongjun SHEN Xiaotong YANG 
Project supported by the National Natural Science Foundation of China(Nos.12272242 and U1934201)。
Piecewise linear systems are prevalent in engineering practice,and can be categorized into symmetric and asymmetric piecewise linear systems.Considering that symmetry is a special case of asymmetry,it is essential to ...
关键词：nonlinear vibration piecewise linear system asymmetry averaging method OFFSET 
Numerical simulation of 3D supersonic asymmetric truncated nozzle based on k-kL algebraic stress model
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2025年第3期238-251,共14页Gang WANG Shuai ZHANG Jifa ZHANG Yao ZHENG 
supported by the Zhejiang Provincial Key Research and Development Program of China(No.2020C01020).
The nozzle is a critical component responsible for generating most of the net thrust in a scramjet engine.The quality of its design directly affects the performance of the entire propulsion system.However,most turbule...
关键词：Supersonic nozzle Turbulence model Numerical simulation Performance analysis 
Asymmetric construction of axial and planar chirality with N-heterocyclic carbene(NHC)organocatalysis
《Science China Chemistry》2025年第3期815-825,共11页Meng Zhang Xiaoqun Yang Xiaolin Peng Xiangyang Li Zhichao Jin 
supported by the National Natural Science Foundation of China (22371057,32172459,32330087);the National Key Research and Development Program of China (2022YFD-1700300);the Science and Technology Department of Guizhou Province (Qiankehejichu-ZK (2021)Key033);the Frontiers Science Center for Asymmetric Synthesis and Medicinal Molecules,Department of Education,Guizhou Province (Qianjiaohe KY (2020)004);the Central Government Guides Local Science and Technology Development Fund Projects (Qiankehezhongyindi (2024)007, (2023)001);the Program of Major Scientific and Technological,Guizou Province (Qiankehechengguo (2024)zhongda007);the Program of Introducing Talents of Discipline to Universities of China (111 Program,D20023)at Guizhou University;the Yongjiang Plan for Innovation and Entrepreneurship Leading Talent Project in the City of Nanning (2021005);Guizhou University (China)。
N-heterocyclic carbene(NHC)organocatalytic reactions that have been developed for asymmetric construction of axial and planar chirality are systematically summarized and discussed in this review.The challenges and lim...
关键词：N-heterocyclic carbene axial chirality planar chirality asymmetric synthesis ORGANOCATALYSIS 
Numerical study of terahertz radiation from N-polar AlGaN/GaN HEMT under asymmetric boundaries
《Frontiers of Optoelectronics》2025年第1期63-73,共11页Runxian Xing Hongyang Guo Bohan Guo Guohao Yu Ping Zhang Jia'an Zhou An Yang Yu Li Chunfeng Hao Huixin Yue Zhongming Zeng Xinping Zhang Baoshun Zhang 
In this paper, we have studied the electrical excitation of plasma-wave in N-polar AlGaN/GaN high electron mobility transistors (HEMT) under asymmetric boundaries leads to terahertz emission. Numerical calculations ar...
关键词：N-polar GaN HEMT Terahertz emission Dyakonov-Shur instability 
How does asymmetric sibling rivalry respond under environmental metal pollution?A case study of the Tree Sparrow(Passer montanus)
《Avian Research》2025年第1期74-82,共9页Jian Ding Shengnan Wang Wenzhi Yang Huijie Zhang Ni Wang Yingmei Zhang 
supported by the National Natural Science Foundation of China (No.32370508 and 32201266);the China Postdoctoral Science Foundation (No.GZC20230731)。
The imbalanced allocation of maternal resources to eggs and nestlings may significantly impact the phenotype and fitness of offspring.Moreover,anthropogenic metal pollution has been reported to exert adverse effects o...
关键词：Passer montanus Environmental metal pollution Offspring characteristics Asymmetric sibling competition 
Tailoring small-molecule acceptors through asymmetric side-chain substitution for efficient organic solar cells
《Science China Materials》2025年第3期860-867,共8页Lan Xie Dingding Qiu Xianghao Zeng Chung Hang Kwok Yan Wang Jia Yao Kan Ding Lu Chen Jicheng Yi Harald Ade Zhixiang Wei Wai-Yeung Wong He Yan Han Yu 
the Hong Kong Research Grants Council(GRF project,16303024,16310824);the support from the National Key Research and Development Program of China(2019YFA0705900)funded by Ministry of Science and Technology of China;Basic and Applied Research Major Program of Guangdong Province(2019B030302007);National Natural Science Foundation of China(NSFC,22075057);Shen Zhen Technology and Innovation Commission through Shenzhen Fundamental Research Program(JCYJ20200109140801751);Hong Kong Research Grants Council(research fellow scheme RFS2021-6S05,RIF project R6021-18,CRF project C6023-19G,GRF project 16310019,16310020,16309221,16309822);Hong Kong Innovation and Technology Commission(ITCCNERC14SC01);Foshan-HKUST(FSUST19-CAT0202);Zhongshan Municipal Bureau of Science and Technology(ZSST20SC02);Guangdong-Hong Kong-Macao Joint Laboratory(2023B1212120003);Tencent Xplorer Prize;the financial support from the RGC Senior Research Fellowship Scheme(SRFS2021-5S01).
Side chain engineering of small-molecule acceptors(SMAs)is a promising strategy for improving device efficiency in organic solar cells(OSCs).This study investigates the parent SMAs of BT-BO and BT-TBO,along with the n...
关键词：organic solar cells side chain engineering active layer asymmetric acceptors thiophene side chains 
Tailor-made high elasticity and low-hysteresis hydrogels based on asymmetric H-bonding crosslinking for wearable applications
《Science China Chemistry》2025年第3期1117-1125,共9页Xiaofang Shi Nan Shi Miaomiao Dang Chengyu Ji Yingjie Li Peiyi Wu Zhiguo Hu 
supported by the National Natural Science Foundation of China (52303006);the National Postdoctoral Science Foundation of China (2023M731012);the Key Science and Technology Project of Henan Province (232102230099);the Foundation of Henan Educational Committee (24A150015)。
The conventional method of fabricating hydrogels constantly confronts the conflict between elasticity and toughness,limiting their repetitive application.Achieving the desired elasticity through a simple and low-cost ...
关键词：new feature monomer asymmetric H-bonding low-hysteresis hydrogel WEARABLE sensor 
Modular Synthesis of C_(2)-Symmetric Chiral TPy-BPI Pincer Ligands and Application in Asymmetric Ni(II)-Catalysed Friedel-Crafts Alkylation
《Chinese Journal of Chemistry》2025年第6期599-606,共8页Hong-Xing Cen Li-Ping Ding Lin-Lu Liu Wei-Dong Pan Xian-Qiao Zhu Wu-Wu Li Wen-Jing Zhang Li-Jun Peng Xiong-Li Liu 
the financial support from the NSFC(22061006);Key Laboratory of Applied Surface and Colloid Chemistry(Shaanxi Normal University)of Ministry of Education,Natural Science Basic Research Plan in Shaanxi Province of China(No.2024JC-YBMS-119);Key Research and Development Plan Project of Xianyang(L2023-ZDYF-QYCX-030);Guizhou Provincial Basic Research Program(GCC[2023]078,ZK[2023]043,ZK[2022]144).
Comprehensive Summary Terpyridine ligands have been applied as a class of unique ligands due to their rich coordination chemistry in the catalysis.Herein,we developed a new class of C_(2)-symmetric chiral terpyridine-...
关键词：Pincer ligands Stereodirecting element Modular synthesis Asymmetric catalysis C_(2)-Symmetric ALKYLATION Synthesis design HETEROCYCLES 
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