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Acta Metallurgica Sinica(English Letters) 2020年第8期33卷 1057-1063页

作者： Xigang Yang Yun zhou Ruihua Zhu Shengqi Xi cheng he Hongjing Wu Yuan Gao State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi’an Jiaotong UniversityXi'an 710049China School of Medical Information and Engineering Southwest Medical UniversityLuzhou 646000China

The exceptional corrosion resistance and mechanical properties of high-entropy metallic glasses(he-MGs)are highly desirable for diverse critical ***,a long-standing problem of these alloys is that their alloy design approaches are based on limited equiatomic or near-equiatomic *** this study,a novel senary alloy(non-equiatomic Fe3 Cr2 Al2 CuNi4 Si5)with amorphous structure was *** alloy exhibited exceptional corrosion resistance and Vickers hardness as high as^1150 Hv at room *** processing route involved amorphous powder molding via a mechanical alloying and ultrahigh pressure consolidation technique,resulting in an optimal microstructure of amorphous structure with nanoparticles uniformly distributed in the matrix *** approach can effectively inhibit the crystallization of amorphous structure,thus providing a general pathway for manufacturing next-generation non-equiatomic he-MGs with both exceptional corrosion resistance and strength.

关键词： Alloying Metallic glasses Corrosion resistance Mechanical alloying High-entropy metallic glasses

Measurement of^(134)Xe(n,2n)^(133m),gXe reaction cross sections in 14‑MeV region with detailed uncertainty quantification

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Nuclear Science and Techniques 2023年第1期34卷 33-42页

作者： Jun‑Hua Luo Jun‑cheng Liang Li Jiang Fei Tuo Liang zhou Long he Institute of New Energy Hexi UniversityZhangye 734000China School of Physics and Electromechanical Engineering Hexi UniversityZhangye 734000China National Institute of Metrology Beijing 100029China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China China CDC National Institute for Radiological ProtectionBeijing 100088China

A lead-shielded HPGe detector and offlineγ-ray spectra of the residual product were used to measure the cross section(CS)and ratios of isomeric CS(σm/σg)in^(134)Xe(n,2n)^(133m),gXe reactions at different energies(13.5 MeV,13.8 MeV,14.1 MeV,14.4 MeV,14.8 MeV)relative to the^(93)Nb(n,2n)^(92)mNb reaction *** target was high-purity natural Xe gas under high *** T(d,n)4he reaction produces *** code(version 1.95)for nuclear reactions was used for calculations,with default parameters and nuclear level density *** uncertainties in the measured CS data were thoroughly analyzed using the covariance analysis *** results were compared with theoretical values,evaluation data,and previous experimental *** data of the 134Xe(n,2n)133mXe and 134Xe(n,2n)133gXe reactions and the corresponding isomeric CS ratios at 13.5 MeV,13.8 MeV,and 14.1 MeV neutron energies are reported for the first *** research advances our knowledge of pre-equilibrium emission in the(n,2n)reaction channel by resolving inconsistencies in the Xe data.

关键词： ^(134)Xe(n,2n)reactions 14-MeV neutrons Cross sections(CSs) Isomeric ratios(IRs) Covariance analysis

Suppress voltage decay of lithium-rich materials by coating layers with different crystalline states

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Journal of Energy Chemistry 2021年第9期30卷 591-598页

作者： Zhiwei zhou Ziyan Luo Zhenjiang he Junchao Zheng Yunjiao Li cheng Yan Jing Mao School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals Central South UniversityChangsha 410083HunanChina Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083HunanChina School of Mechanical Medical and Process EngineeringScience and Engineering FacultyQueensland University of Technology(QUT)BrisbaneQueensland4001Australia School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

Li-rich oxides are considered as the most commercial potential cathode materials due to the high theoretical specific discharge capacity. here, ZrO_(2) in different crystalline states are applied as the coating layers to enhance the electrochemical performance of hollow Li[Li_(0.2)Mn_(0.54)Ni_(0.13)Co_(0.13)]O_(2) ***, a series of characterizations(XRD, SEM, TEM, EDX etc.) are conducted to compare the effects of ZrO_(2) coating layer with different crystalline states on the host material. The results elucidate that the Li-rich Mn-based material with the polycrystal ZrO_(2) coating layer has a slight advantage in rate performance, while the host material with the single crystal ZrO_(2)-coating layer has a better cycling performance and effectively suppresses voltage decay with the effect of excellently inhibiting layered to spinel-like phase transition and metal dissolution during charging and discharging process.

关键词： Lithium-ion battery Cathode material Surface modification Electrochemical performance Voltage decay

Magneto-electric integrated design strategy of NiCo@C composites for synergistic absorption and conversion in mid-high frequency microwaves

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Nano Research 2024年第4期17卷 2205-2215页

作者： Yijie Liu Jintang zhou Xiaoxuan he Lvtong Duan Yucheng Wang Zhenyu cheng Zhengjun Yao College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211100China Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics) Ministry of Industry and Information TechnologyNanjing 211100China

Achieving synergistic absorption of electromagnetic waves(EMWs)in the mid-high frequency and absorption band conversion is an urgent ***,the present solution is usually a straightforward mixture of magnetic component-carbon ***,we optimize the magnetic properties and electrical relaxation response from a chemical synthesis *** integrated design,the contents of carbon components and multi-dimensional morphology are controlled by retaining strong magnetic *** morphology design and the construction of heterogeneous interfaces will boost the intense response of charge in the surrounding to enhance the polarization *** multi-dimensional structure and electromagnetic(EM)properties of the sample after optimized engineering have an extremely powerful absorption conversion effect on EMW ***@C particles ultimately achieve synergistic absorption effects at low thickness(dhes a correlation mechanism between the physical and chemical properties of materials and EM *** also provides insight into the synergistic absorption of EMWs in the mid-high frequency and absorption band conversion strategies.

关键词： micro-nano composites NiCo@C hollow structure mid-high frequency absorption

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非静水压作用下石膏电学性质的理论研究

原子与分子物理学报 2025年第6期42卷 129-135页

作者：周梅吴雷罗小松何宗润贵州民族大学物理与机电工程学院贵阳550025 重庆大学能源与动力工程学院重庆400044

地球内部广泛存在着差应力,这些外在因素的存在影响着矿物的性质,而矿物的电学性质与结构相变息息相关.为了更加了解地球内部结构与动力学过程,采用第一性原理方法,在等效平衡压0~10 GPa范围内计算地球内部浅层矿物石膏在静水压和非静... 详细信息

地球内部广泛存在着差应力,这些外在因素的存在影响着矿物的性质,而矿物的电学性质与结构相变息息相关.为了更加了解地球内部结构与动力学过程,采用第一性原理方法,在等效平衡压0~10 GPa范围内计算地球内部浅层矿物石膏在静水压和非静水压条件下的电学性质.计算结果表明:静水压和非静水压条件下无水石膏的密度和带隙变化基本一致,但二水石膏的密度和带隙在非静水压为6 GPa附近发生突变,这可能是由于非静水压环境使晶体结构更容易发生畸变,更有利于水分子氢键网络的重新排列和CaSO_(4)层间结构的塌缩,因此非静水压下可能更加有利于二水石膏在高温高压下的脱水反应.这对理解地幔中矿物的脱水和储水产生重大的影响,为理解地幔中矿物的脱氢和储水提供理论依据.

关键词：差应力石膏电学性质第一性原理

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Numerical analysis of turbulent fluctuations around an axisymmetric body of revolution based on wall-modeled large eddy simulations

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Journal of Hydrodynamics 2023年第6期35卷 1041-1051页

作者： Kang-jian he Fu-chang zhou Wei-wen Zhao Jian-hua Wang De-cheng Wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Wuhan Second Ship Design and Research Institute Wuhan430205China

Wall-modeled large eddy simulation(WMLES)is used to investigate turbulent fluctuations around an axisymmetric body of *** study focuses on evaluating the ability of WMLES to predict the fluctuating flow over the axisymmetric hull and analyzing the evolution of turbulent fluctuations around the *** geometry is the DARPA SUBOFF bare model and the Reynolds number is 1.2×10^(7),based on the free-stream velocity and the length of the ***-wall flow structures and complex turbulent fluctuation fields are successfully ***-averaged flow quantities,such as time-averaged pressure and skin-friction coefficients,and time-averaged velocity profiles on the stern,achieved great agreements between WMLES results and experimental ***-similarity of time-averaged velocity defects within a self-similar coordinate up to twelve diameters from the tail.A comprehensive analysis of second-order statistics in the mid-body,stern,and wake regions is *** results agree well with experimental data and previous wall-resolved large eddy simulation(WRLES)results about root mean square(rms)of radial and axial fluctuating velocities at the *** fluctuations including turbulent kinetic energy(TKE)and second-order velocity statistics are identified as dual peak behavior and non-self-similar over the wake length,consistent with previous findings in the *** assessment enhances the understanding of WMLES capabilities in capturing complex fluctuating flow around axisymmetric geometries.

关键词： Turbulent fluctuations wall-modeled large eddy simulation(WMLES) turbulent boundary layer wake

Research and applications of biochip technologies

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Chinese Science Bulletin 2000年第2期45卷 101-108页

作者： XU Junquan he Xuezhong zhou Yuxiang LIU Litian cheng Jing Biochip Research and Development Center Tsinghua UniversityBeijing 100084China State Key Laboratory of Biomembrane and Membrane Biotechnology SchooI of Biological Sciences and Engineering Tsinghua UniversityBeijing 100084China 不详

Biochip as a new research field has enjoyed its rapid development in the past 10 years. Using microfabrication technology, thousands or hundred thousands of biological molecules can be assembled on a centimeter square microchip. Those chip-based devices can be used to analyze mutations, antigens, cells, etc. Compared with the traditional analytical instruments, chip-based micro total analytical systems have many advantages, such as reduced size, lower consumption of both reagents and energy contamination-free, etc. Biochip technology is believed to revolutionize the future research in life sciences, disease diagnosis, drug discovery forensic sciences and outer space exploitation in the coming

关键词： biocbip disease diagnosis pharmacogenomics lahoratory-on-a-chip.

Orofacial inflammatory pain affects the expression of MT1 and NADPH-d in rat caudal spinal trigeminal nucleus and trigeminal ganglion

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Neural Regeneration Research 2013年第32期8卷 2991-3002页

作者： Fang Huang Hongwen he Wenguo Fan Yongliang Liu Hongyu zhou Bin cheng Guanghua School of Stomatology Hospital of StomatologySun Yat-sen UniversityGuangdong Provincial Key Laboratory of Stomatology

Very little is known about the role of melatonin in the trigeminal system, including the function of melatonin receptor 1. In the present study, adult rats were injected with formaldehyde into the right vibrissae pad to establish a model of orofacial inflammatory pain. The distribution of melatonin re- ceptor 1 and nicotinamide adenine dinucleotide phosphate diaphorase in the caudal spinal trigeminal nucleus and trigeminal ganglion was determined with immunohistochemistry and histo- chemistry. The results show that there are significant differences in melatonin receptor 1 expression and nicotinamide adenine dinucleotide phosphate diaphorase expression in the trigeminal ganglia and caudal spinal nucleus during the early stage of orofacial inflammatory pain. Our findings sug- gest that when melatonin receptor 1 expression in the caudal spinal nucleus is significantly reduced, melatonin＇s regulatory effect on pain is attenuated.

关键词： neural regeneration pain melatonin nitric oxide maxillofacial pain caudal spinal trigeminalnucleus trigeminal ganglia mesencephalic trigeminal nucleus melatonin receptor 1 nicotinamideadenine dinucleotide phosphate diaphorase grants-supported paper neuroregeneration

MSCANet: multiscale context information aggregation network for Tibetan Plateau lake extraction from remote sensing images

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International Journal of Digital Earth 2023年第1期16卷 1-30页

作者： Zhihui Tian Xiaoyu Guo Xiaohui he Panle Li Xijjie cheng Guangsheng zhou School of Geoscience and Technology Zhengzhou UniversityZhengzhouPeople's Republic of China Ecometeorology Joint Laboratory of Zhengzhou University and Chinese Academy of Meteorological Science ZhengzhouPeople's Republic of China School of Information Engineering Zhengzhou UniversityZhengzhouPeople's Republic of China

Qinghai-Tibet Plateau lakes are important carriers of water resources in the‘Asian’s Water Tower’,and it is of great significance to grasp the spatial distribution of plateau lakes for the climate,ecological environment,and regional water ***,the differences in spatial-spectral characteristics of various types of plateau lakes,and the complex background information of plateau both influence the extraction effect of ***,it is a great challenge to completely and effectively extract plateau *** this study,we proposed a multiscale contextual information aggregation network,termed MSCANet,to automatically extract Plateau lake *** consists of three main components:a multiscale lake feature encoder,a feature decoder,and a Multicore Pyramid Pooling Module(MPPM).The multiscale lake feature encoder suppressed noise interference to capture multiscale spatial-spectral information from heterogeneous *** MPPM module aggregated the contextual information of various lakes *** applied the MSCANet to the lake extraction of the Qinghai-Tibet Plateau based on Google data;additionally,comparative experiments showed that the MSCANet proposed had obvious improvement in lake detection accuracy and morphological ***,we transferred the pre-trained optimal model to the Landsat-8 and Sentinel-2A dataset to verify the generalization of the MSCANet.

关键词： Remote sensing imagery The Qinghai-Tibet Plateau lake extraction deep learning multiscale feature context information aggregation

Fluorescent Supramolecular Polymersomes Based on Pillararene/Paraquat Molecular Recognition for pH-controlled Drug Release

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Chinese Journal of Polymer Science 2020年第1期38卷 1-8,I0004页

作者： Run Zhao Yu-Juan zhou Ke-cheng Jie Jie Yang Sebastien Perrier Fei-he Huang State Key Laboratory of Chemical Engineering Center for Chemistry of High-Performance&Novel MaterialsDepartment of ChemistryZhejiang UniversityHangzhou 310027China Department of Chemistry The University of WarwickCoventry CV47ALUK Faculty of Pharmacy and Pharmaceutical Sciences Monash University381 Royal ParadeParkvilleVIC3052Australia Warwick Medical School The University of WarwickCoventry GV47ALUK

Researchers have put significant efforts on developing versatile fluorescent polymeric systems due to their promising biological/biomedical labelling, tracking, monitoring, imaging, and diagnostic applications. However, complicated organic/polymeric synthesis or post-modification of these functionalized platforms is still a big obstacle for their further application and thereby provides clear motivation for exploring alternative strategies for the design and fabrication of easily available fluorescent systems. The marriage of supramolecular polymers and fluorescent imaging can provide a facile and dynamic manner instead of tedious and time-consuming synthesis due to the dynamic and reversible nature of noncovalent interactions. herein, based on water-soluble pillararene/paraquat molecular recognition, we successfully prepare two amphiphilic polypseudorotaxanes which can self-assemble into supramolecular polymersomes in water. These polymersomes can be reversibly destroyed and reformed by tuning the solution p H. Attributed to the aggregation-induced emission of tetraphenylethylene groups,intense fluorescence can be introduced into the obtained supramolecular polymersomes. Furthermore, p H-triggered release of an encapsulated water-insoluble drug(doxorubicin) from the self-assembled fluorescent supramolecular polymersomes is also investigated.

关键词： Fluorescent polymers Aggregation-induced emission Host-guest interactions Responsiveness