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SSRN 2024年

作者： Hamoud, Yousef Alhaj Shaghaleh, Hiba Zhang, Ke Okla, Mohammad K. Alaraidh, Ibrahim A. Sheteiwy, Mohamed S. AbdElgawad, Hamada The National Key Laboratory of Water Disaster Prevention Hohai University Nanjing210098 China College of Hydrology and Water Resources Hohai University Nanjing210098 China College of Environment Hohai University Nanjing210098 China Yangtze Institute for Conservation and Development Hohai University Jiangsu Nanjing210024 China China Meteorological Administration Hydro-Meteorology Key Laboratory Hohai University Jiangsu Nanjing210024 China Key Laboratory of Water Big Data Technology of Ministry of Water Resources Hohai University Nanjing210024 China Key Laboratory of Hydrologic-Cycle and Hydrodynamic-System of Ministry of Water Resources Hohai University Nanjing210024 China Botany and Microbiology Department College of Science King Saud University P.O. Box 2455 Riyadh11451 Saudi Arabia Department of Integrative Agriculture College of Agriculture and Veterinary Medicine United Arab Emirates University P.O. Box 15551 Al Ain Abu Dhabi United Arab Emirates Department of Agronomy Faculty of Agriculture Mansoura University Mansoura35516 Egypt Integrated Molecular Plant Physiology Research Department of Biology University of Antwerp Antwerp2020 Belgium

Rice is threatened by ineffective inputs of water and fertilizers. Therefore, we detected the impact soil clay content and water regime on the plant physiological attributes and their relations to the phosphorus utilization efficiency of rice under various irrigation methods. Therefore, this trail was carried out in a completely randomized block design. The main factor was the irrigation method using three watering options: alternate wetting and critical drying (AWCD), alternate wetting and modest drying (AWSD), and alternative wetting and minor drying (AWMD). The sub-factor was soil clay level, with three contents at 65, 50, and 30%, which were called SHC, SMC, and SLC, respectively. The active absorption area and peroxidase activity of roots were lower in AWCD × SLC than in AWMD × SHC. While the former treatment decreased the P level in the soil, the latter increased their accessibility. The glutamine synthetase (492.5 µmol g-1h-1) was lower in AWCD × SLC than in in AWMD × SHC at 1006.1 µmol g-1h-1, leading to the increase of oxidative cell damage. The optimal P nutrition improved the plant cell ultrastructure under AWMD × SHC. The AWCD × SLC led to the minimum agronomic efficiency of P (PAE, 13.67 g/g), and the apparent recovery efficiency of P (PARE, 1.55%). However, the maximum values of PAE (44.05 g/g), and PARE (21.45%) were detected in AWMD × SHC. This study advocates that AWMD × SHC could stimulate plant physiological traits, warranting optimal P acquisition and utilization of rice grown in high clay soil. © 2024, The Authors. All rights reserved.

关键词： Drying

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Effect of thermal-cycling on the piezoelectricity of 0.5Ba(Zr 0.2 Ti 0.8 )O 3 -0.5(Ba 0.7 Ca 0.3 )TiO 3 Pb-free piezoceramic

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Journal of Alloys and Compounds 2020年 847卷

作者： Yanshuang Hao Chang Liu Liqiang He Yuanchao Ji Luo Zhao Jinghui Gao Shuai Ren Mengyao Guo Zhufeng Hou Bo Da Xiaobing Ren Frontier Institute of Science and Technology And State Key Laboratory for Mechanical Behaviour of Materials And MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi’an Jiaotong University Xi’an 710049 China Center for Functional Materials National Institute for Materials Science Tsukuba 305-0047 Ibaraki Japan State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an 710049 China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China Research and Services Division of Materials Data and Integrated System National Institute for Materials Science Tsukuba 305-0044 Ibaraki Japan

The reliability of piezoelectricity under thermal-cycling is an important consideration for the practical application of Pb-free piezoelectric materials. In this paper, we investigated the effect of thermal-cycling on the piezoelectricity of 0.5Ba(Zr 0.2 Ti 0.8 )O 3 -0.5(Ba 0.7 Ca 0.3 )TiO 3 (BZT-BCT) Pb-free piezoceramic. The results show that, in BZT-BCT, the tetragonal-orthorhombic (T-O) transition causes a strong piezoelectricity degradation (∼40% reduction after 60 thermal cycles between −40 °C and 50 °C), whereas the orthorhombic-rhombohedral (O-R) transition only leads to negligible degradation during the thermal-cycling test, indicating a weak depoling effect. The comparative studies made between BZT-BCT and BaTiO 3 (BT) reveal that the weak depoling effect results from the diffuseness of the O-R transition in BZT-BCT and weak domain pattern change across the transition. Our work implies that Pb-free piezoelectrics with good thermal-cycling stability can be achieved through engineering the normal ferroelectric-to-ferroelectric transition to a diffused one, which may help to design new Pb-free piezoelectric materials with good thermal-cycling stability.

关键词： Thermal cycling Phase transition Pb-free Diffuse phase transition

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design of Wide Interval Frequency Hopping Pattern for Frequency Hopping Mobile Ad-hoc Networks

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Journal of Physics: Conference Series 2020年第1期1584卷

作者： Yadong Zhao Yu Zhang Jian Song Beijing National Research Center for Information Science and Technology (BNRist) Department of Electronic Engineering Tsinghua University Beijing 100084 China Key Laboratory of Digital TV System of Guangdong Province and Shenzhen City Research Institute of Tsinghua University in Shenzhen Shenzhen 518057. P.R. China

The frequency hopping mobile ad-hoc network (FH MANET) is a communication network that combines frequency hopping (FH) technology and mobile ad-hoc network (MANET) technology. FH technology can improve the anti-interference performance of the network, and MANET technology improves the mobility and anti-destructiveness of the network. It can be networked autonomously without manual intervention and other network facilities. It has strong application value in complex battlefield environment and occasions with harsh environment and high confidentiality requirements. The frequency hopping pattern (FHP) design is a key technology in the FH MANET, which is directly related to the network's anti-interference and multipath fading capabilities. In this paper, a wide interval expansion method (WIEBM) based on m-sequence and non-continuous tap L-G model is proposed. The experimental results demonstrate that proposed scheme can effectively improve the anti-interference ability of the system. It has the ability to resist more than 30% of broadband interference.

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Ruthenium-Catalyzed α-Regioselective Hydroboration of Allenes

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Angewandte Chemie 2024年第8期137卷

作者： Dr. Yun-Xuan Tan Dr. Shijia Li Dr. Liang Chen Jing Huang Dr. Chaoshen Zhang Prof. Dr. Lijuan Song Prof. Dr. Xinhao Zhang Prof. Dr. Yun-Dong Wu Prof. Dr. Jianwei Sun Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction The Hong Kong University of Science and Technology Clear Water Bay Kowloon 999077 Hong Kong SAR China Shenzhen Bay Laboratory Shenzhen 518055 China School of Science Harbin Institute of Technology (Shenzhen) Shenzhen Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen 518055 China

Hydroboration of allenes is powerful and atom-economic approach to the synthesis of organoboranes, such as the highly versatile allylboranes. However, regarding regiocontrol, existing methods uniformly deliver the boron functionality to the less hindered β- or γ-position, but not the α-position. The latter is particularly challenging for allenes with substantial steric difference between the two terminals and lacking electronic bias (e.g., 1,1-disubstituted allenes). Herein we report the first highly efficient ruthenium-catalyzed hydroboration of allenes featuring exclusive α-regioselectivity, providing access to sterically hindered allyl boranes that are limitedly accessible by conventional methods. DFT studies suggested that the unusual α-regioselectivity is attributed to the disfavored reductive elimination at the γ-position due to the high energy cost required to overcome the agostic interaction and rotation of the key π-allyl intermediates. This protocol is also applicable to the previously unprecedented α-hydroalkynylation and underdeveloped α-hydrosilylation of allenes, thus complementing known catalytic systems and providing convenient access to highly congested yet densely-functionalized allyl silanes and skipped enynes bearing a fully-substituted allylic carbon center. It is expected that this ruthenium-catalyzed system can serve as a new platform for the development of other hydrofunctionalization processes with unorthodox selectivity.

关键词： hydroboration allenes regioselectivity allylic compounds ruthenium

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Shape-Memory Polymers: Mechanically Robust and UV-Curable Shape-Memory Polymers for Digital Light Processing Based 4D Printing (Adv. Mater. 27/2021)

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Advanced Materials 2021年第27期33卷

作者： Biao Zhang Honggeng Li Jianxiang Cheng Haitao Ye Amir Hosein Sakhaei Chao Yuan Ping Rao Yuan-Fang Zhang Zhe Chen Rong Wang Xiangnan He Ji Liu Rui Xiao Shaoxing Qu Qi Ge Frontiers Science Center for Flexible Electronics (FSCFE) Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials and Engineering (IBME) Northwestern Polytechnical University 127 West Youyi Road Xi'an 710072 China Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 China Guangdong Provincial Key Laboratory of Human-Augmentation and Rehabilitation Robotics in Universities Southern University of Science and Technology Shenzhen 518055 China School of Engineering and Digital Arts University of Kent Canterbury Kent CT2 7NT UK State Key Laboratory for Strength and Vibration of Mechanical Structures Department of Engineering Mechanics Xi'an Jiaotong University Xi'an 710049 China Department of Mechanics and Aerospace Engineering Southern University of Science and Technology Shenzhen 518055 China Digital Manufacturing and Design Centre Singapore University of Technology and Design Singapore 487372 Singapore State Key Laboratory of Fluid Power and Mechatronic System Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Department of Engineering Mechanics Zhejiang University Hangzhou 310027 China

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Low Profile Microsrip Antenna with Broadside Radiation Patterns and Low Cross Polarizations

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Journal of Physics: Conference Series 2019年第3期1237卷

作者： Ping Lai Chao Xu Zhuo Xu Kang Luo Unit.32382 of PLA Wuhan Hubei 430311 China China Fire Rescue College Beijing Province 102230 China Comprehensive Information Guarantolice Corps Nanning Guangxi 530308 China National Key Laboratory of Science and Technology on Vessel Integrated Power System University Wuhan Hubei 430030 China

A low profile microstrip antenna with adjustable bandwidth around 3 GHz is proposed. The compact antenna consists of a square patch with a square aperture to tune the resonance center frequency. The input impedance bandwidth is about 2.67% with stable gain around 3.2 dBi. Besides, the 3-dB beam width is about 100°. Both the side-fed and bottom-fed modes are analyzed. According to the simulation, good broadside radiation patterns with low cross polarizations are observed in the two principal planes. The detailed design considerations are described and discussed while the surface current distribution and radiation characteristics are analyzed. This design is suitable for mobile wireless communication.

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Noble Metal Dichalcogenides: A Noble Metal Dichalcogenide for High‐Performance Field‐Effect Transistors and Broadband Photodetectors (Adv. Funct. Mater. 5/2020)

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Advanced Functional Materials 2020年第5期30卷

作者： Zhen Wang Peng Wang Fang Wang Jiafu Ye Ting He Feng Wu Meng Peng Peisong Wu Yunfeng Chen Fang Zhong Runzhang Xie Zhuangzhuang Cui Liang Shen Qinghua Zhang Lin Gu Man Luo Yang Wang Huawei Chen Peng Zhou Anlian Pan Xiaohao Zhou Lili Zhang Weida Hu State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China University of Chinese Academy of Sciences Beijing 100049 China Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China State Key Laboratory of Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Jiangsu Key Laboratory of ASIC Design Nantong University Nantong Jiangsu 226019 China State Key Laboratory of ASIC and System Department of Microelectronics Fudan University Shanghai 200433 China Key Laboratory for Micro‐Nano Physics and Technology of Hunan Province College of Materials Science and Engineering Hunan University Changsha 410082 China

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designing Cation–Solvent Fully Coordinated Electrolyte for High-Energy-Density Lithium–Sulfur Full Cell Based On Solid–Solid Conversion

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Angewandte Chemie 2021年第32期133卷

作者： Huijun Yang Dr. Yu Qiao Dr. Zhi Chang Prof. Ping He Prof. Haoshen Zhou Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Umezono Tsukuba 305-8568 Japan Graduate School of System and Information Engineering University of Tsukuba 1-1-1 Tennoudai Tsukuba 305-8573 Japan Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China

Sulfur chemistry based on solid–liquid dissolution-deposition route inevitably encounters shuttle of lithium polysulfides, its parasitic interaction with lithium (Li) anode and flood electrolyte environment. The sulfurized pyrolyzed poly(acrylonitrile) (S@pPAN) cathode favors solid-solid conversion mechanism in carbonate ester electrolytes but fails to pair high-capacity Li anode. Herein, we rationally design a cation-solvent fully coordinated ether electrolyte to simultaneously resolve the problems of both Li anode and S@pPAN cathode. Raman spectroscopy reveals a highly suppressed solvent activity and a cation-solvent fully coordinated structure (molar ratio 1:1). Consequently, Li electrodeposit evolves into round-edged morphology, LiF-rich interphase, and high reversibility. Moreover, S@pPAN cathode inherits a neat solid-phase redox reaction and fully eliminated the dissolution of lithium polysulfides. Finally, we harvest a long-life Li-S@pPAN pouch cell with slight Li metal excessive (0.4 time) and ultra-lean electrolyte design (1 μL mg S −1 ), delivering 394 Wh kg −1 energy density based on electrodes and electrolyte mass.

关键词： high-energy-density lithium-sulfur battery metal-organic framework (MOF) S@pPAN cathode solid-solid conversion

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Developing A “Polysulfide‐Phobic” Strategy to Restrain Shuttle Effect in Lithium–Sulfur Batteries

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Angewandte Chemie 2019年第34期131卷

作者： Yibo He Yu Qiao Zhi Chang Xin Cao Min Jia Ping He Haoshen Zhou Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Umezono Tsukuba 305-8568 Japan Graduate School of System and Information Engineering University of Tsukuba 1-1-1 Tennoudai Tsukuba 305-8573 Japan Center of Energy Storage Materials&Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China

Inspired by hydrophobic interface, a novel design of “polysulfide‐phobic” interface was proposed and developed to restrain shuttle effect in lithium–sulfur batteries. Two‐dimensional VOPO 4 sheets with adequate active sites were employed to immobilize the polysulfides through the formation of a V−S bond. Moreover, owing to the intrinsic Coulomb repulsion between polysulfide anions, the surface anchored with polysulfides can be further evolved into a “polysulfide‐phobic” interface, which was demonstrated by the advanced time/space‐resolved operando Raman evidences. In particular, by introducing the “polysulfide‐phobic” surface design into separator fabrication, the lithium–sulfur battery performed a superior long‐term cycling stability. This work expands a novel strategy to build a “polysulfide‐phobic” surface by “self‐defense” mechanism for suppressing polysulfides shuttle, which provides new insights and opportunities to develop advanced lithium–sulfur batteries.

关键词： Coulomb-Abstoßung Lithium-Schwefel-Batterien Operando-Raman-Spektroskopie Polysulfid-phobe Grenzfläche Verankerte Polysulfide

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Recent development of chemically complex metallic glasses:from accelerated compositional design,additive manufacturing to novel applications

材料展望（英文）

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材料展望（英文） 2022年第1期 9-31页

作者： J Y Zhang Z Q Zhou Z B Zhang M H Park Q Yu Z Li J Ma A D Wang H G Huang M Song B S Guo Q Wang Y Yang Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Shenzhen Key Laboratory of High Performance Nontraditional Manufacturing College of Mechatronics and Control EngineeringShenzhen UniversityShenzhenGuangdong 518060People's Republic of China School of Materials Science and Engineering Dongguan University of TechnologyDongguanGuangdong 523808People's Republic of China Institute of Materials China Academy of Engineering PhysicsJiangyouSichuan 621907People's Republic of China State Key Laboratory of Powder Metallurgy Central South UniversityChangshaHunan 410083People's Republic of China Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Institute of Advanced Wear & Corrosion Resistant and Functional Materials Jinan UniversityGuangzhouGuangdong 510632People's Republic of China Institute of Materials Laboratory for MicrostructuresShanghai UniversityShanghai 200444People's Republic of China Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Department of Materials Science and Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Department of Advanced Design and System Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China

Metallic glasses(MGs)or amorphous alloys are an important engineering material that has a history of research of about 80-90 *** different fast cooling methods were developed for multi-component MGs between 1960s and 1980s,1990s witnessed a surge of research interest in the development of bulk metallic glasses(BGMs).Since then,one central theme of research in the metallic-glass community has been compositional design that aims to search for MGs with a better glass forming ability,a larger size and/or more interesting properties,which can hence meet the demands from more important *** this review article,we focus on the recent development of chemically complex MGs,such as high entropy MGs,with new tools that were not available or mature yet until recently,such as the state-of-the-art additive manufacturing technologies,high throughput materials design techniques and the methods for big data analyses(*** learning and artificial intelligence).We also discuss the recent use of MGs in a variety of novel and important applications,from personal healthcare,electric energy transfer to nuclear energy that plays a pivotal role in the battle against global warming.

关键词： metallic glasses amorphous alloys alloy design additive manufacturing machine learning high throughput materials design

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