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Genes & Diseases 2024年第3期11卷 484-484页

作者： De-Ping Wang fang-ying jiang Xian-Yan Zeng Yu-Jie Liu Rong Zhao Mei-Yue Wang Jing Luo Chen Chen Yong Zhu Ji-Min Cao Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of Educationand the Department of PhysiologyShanxi Medical UniversityTaiyuanShanxi 030001China College of Life Sciences Chongqing Medical UniversityChongqing 400016China Department of Biochemistry and Molecular Biology School of Basic Medical SciencesTianjin Medical UniversityTianjin300070China Department of Rheumatology The Second Hospital of Shanxi Medical UniversityTaiyuanShanxi 030001China

We're very sorry for missing a funding program in funding ***,we would like to add this program:The Natural Science Foundation of Tianjin(China)(No.21JCQNJCO1890)from Tianjin Science and Technology in the first *** au... 详细信息

关键词： section. Tianjin funding

Ultrafast optical investigation of carrier and spin dynamics in low-dimensional perovskites

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Science China(Technological Sciences) 2024年第1期67卷 2-18页

作者： FU JinYue jiang ying fang HongHua Key Laboratory for Micro-Nano Physics and Technology of Hunan Province School of Physics and ElectronicsHunan UniversityChangsha 410012China State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China

Low-dimensional perovskite(PVK)materials have attracted significant research interest,because of their quantum-confined effect,tunable band gap structures,and higher stability than that of three-dimensional(3D)*** semiconductor optoelectronic devices,high speed and small size are closely *** development of high-speed devices requires researchers to fully understand the properties of materials,especially the dynamic processes such as carrier recombination,separation,and transport,which often play a crucial role in the performance of *** an indispensable part of dynamic research,spin relaxation is also of great significance in studying the properties of materials and explore possible *** halide PVK materials have strong spin-orbit coupling(SOC),which provides a basis for information storage and processing by using spin degrees of ***,studying the carrier and spin dynamics of low-dimensional PVKs is an effective way to understand the internal properties of low-dimensional PVKs *** paper summarizes the latest research progress on the ultrafast carrier and spin dynamics in low-dimensional PVKs,to comprehensively understand their carrier and spin behaviors and present an outlook for relevant studies in this area.

关键词： low-dimensional perovskites carrier dynamics spin dynamics optoelectronic devices

Stress Analysis of the Subsea Dynamic Riser BaseProcess Piping

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Journal of Marine Science and Application 2014年第3期13卷 327-332页

作者： Xuanzc Ju Wei fang Hanjun Yin ying jiang OffShore Oil Engineering Co. Ltd. Tianjin 300451 China

Thesubsea dynamic riser base （SDRB） is an important piece of equipment for the floating production platform mooring *** end is connected to the rigid pipeline, carrying a rigid pipeline thermal expansion load and the other end is connected to a flexible riser, carrying the dynamic load of the flexible riser, so its function is a transition connection between the flexible riser and the rigid pipeline which fixes the flexible riser on the seabed. On the other hand. as a typical subsea product, the design will satisfythe requirements of the standards for subsea products. By studying the stress analysisphilosophy of the topside piping and subsea pipeline, a physical model and procedure for piping stress analysis of the SDRB have been *** conditions of the adverse design load have been considered, and a combination of the static load from the rigid pipeline and the dynamic load flexibility has also been optimized. And a comparative analysis between the AMSE, DNV and API standards for piping stress with the checking rules has been *** theSDRB belongs to the subsea pipeline terminal product, the use of DNV standards to check its process piping stress is recommended. Finally, the process piping stress of the SDRB has been calculated, and the results show that the jacket pipe and the carrier pipe stress of the SDRB process piping satisfy the DNV standards as a *** bulkhead cannot be accurately simulated by the AutoPIPE software which uses the FEA software ANSYS inthe detailed analysis, but the checking results will still meet the requirements of the DNV standards.

关键词： subsea product design subsea dynamic riserbase(SDRB) process piping stress analysis flexible riser rigidpipeline

Physical and Electrochemical Characterization of Hydrothermal Prepared α'-NaV_2O_5 Crystals

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Chemical Research in Chinese Universities 2010年第2期26卷 291-293页

作者： HU fang WEI ying-jin jiang Tao MING Xing CHEN Gang WANG Chun-zhong College of Physics State Key Laboratory of Superhard Materials Jilin University Changchun 130012 P. R. China

a＇-NaV2O5 was prepared by a simple hydrothermal process. X-ray diffraction confirmed the orthorhombic structure of a＇-NaV2O5, with preferential growth along the （001） direction. Scanning electron microscopy showed a＇-NaV205 was composed of flake-shaped crystals. X-ray photoelectron spectroscopy confirmed the co-existence of V^4＋ and V^5＋ in a＇-NaV2O5, which results in an average V^4.5＋ oxidation state of a＇-NaV2O5. The observed Raman bands are ascribed to different V-O vibrations, a＇-NaV205 shows a reversible specific capacity of about 100 mA·h·g^-1 between 3.5 and 1.0 V, with a good capacity retention. The good electrochemical stability of the material is attributed to its structural stability during Li^＋ intercalation.

关键词： Lithium ion battery Vanadium bronze Electrochemical performance

Liver injury in COVID-19:A minireview

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World Journal of Gastroenterology 2022年第47期28卷 6716-6731页

作者： Wen-Shu Hu fang-ying jiang Wen Shu Rong Zhao Ji-Min Cao De-Ping Wang Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of EducationShanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Physiology Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

Coronavirus disease 2019(COVID-19),caused by infection with the severe acute respiratory syndrome coronavirus-2(SARS-CoV-2),has escalated into a global tragedy afflicting human health,life,and social *** the increasing depth of research and a better understanding of this disease,it has been ascertained that,in addition to the lungs,SARS-CoV-2 can also induce injuries to other organs including the *** injury is a common clinical manifestation of COVID-19,particularly in severe cases,and is often associated with a poorer prognosis and higher severity of *** review focuses on the general existing information on liver injury caused by COVID-19,including risk factors and subpopulations of liver injury in COVID-19,the association between preexisting liver diseases and the severity of COVID-19,and the potential mechanisms by which SARS-CoV-2 affects the *** review may provide some useful information for the development of therapeutic and preventive strategies for COVID-19-associated liver injury.

关键词： Liver SARS-CoV-2 Angiotensin-converting enzyme 2 Transmembrane serine protease 2 Chronic liver disease

Particle Distribution Informed by Chain Rigidity in Diblock Copolymer Melts: The Effect of Entropy

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Chinese Journal of Polymer Science 2024年第3期42卷 388-399,I0009页

作者： Yuguo Chen Shuanhu Qi ying jiang School of Chemistry Beihang UniversityBeijing 100191China

We study the effect of chain rigidity on tailoring the nanoparticle locations for neutral and selective particles embedded in the lamellar morphology formed by semiflexible diblock copolymer chains using self-consistent field calculations. The nanoparticles are modeled through a cavity function, and the semiflexible chains are represented by the continuous Kratsky-Porod chain model. In general situation, the nanoparticles prefer to stay at the interface in order to reduce the interface areas and thus the system free energy. However, the particle distribution at the domain center is subtle, and the underlying physics is intrinsically different depending on the polymer flexibility. In the case of flexible chains, the entropy just contributes a constant shift to the free energy when the nanoparticles move around the domain center indicating that the local metastable state if appears at the domain center is wholly attributed to the local minimum in the enthalpy. If the polymers are rigid, the variation of the particle distribution at the domain center has a close relation with the polymer rigidity and nanoparticle size. In the case of strongly rigid polymers with small nanoparticles, a nearly uniform particle distribution at the domain center is observed, while in other cases, a local enhancement of particle distribution there is found. In contrast to the case of flexible chains, further analysis reveals the crucial role of entropy in controlling the shape of particle distributions at the phase domain. Specifically, the local metastable state appears in the domain center is determined by the large entropy there which arises from the weak coupling of bond orientations that allows the polymer chains to be relatively relaxed. When the particle becomes selective, its distribution in the phase domain exhibits a shift almost uniformly rather than changes its profile, and the underlying physics still holds. In all, our study establishes a strong coupling between the chain rigi

关键词： Semiflexible diblock copolymer Nanoparticle distribution Self-consistent field theory Entropic effect

Application of artificial synapse based on all-inorganic perovskite memristor in neuromorphic computing

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Nano Materials Science 2024年第1期6卷 68-76页

作者： fang Luo Wen-Min Zhong Xin-Gui Tang Jia-ying Chen Yan-Ping jiang Qiu-Xiang Liu School of Physics&Optoelectric Engineering Guangdong University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou510006China

Artificial synapse inspired by the biological brain has great potential in the field of neuromorphic computing and artificial *** memristor is an ideal artificial synaptic device with fast operation and good ***,we have prepared a memristor device with Au/CsPbBr_(3)/ITO *** memristor device exhibits resistance switching behavior,the high and low resistance states no obvious decline after 400 switching *** memristor device is stimulated by voltage pulses to simulate biological synaptic plasticity,such as long-term potentiation,long-term depression,pair-pulse facilitation,short-term depression,and short-term *** transformation from short-term memory to long-term memory is achieved by changing the stimulation *** addition,a convolutional neural network was constructed to train/recognize MNIST handwritten data sets;a distinguished recognition accuracy of~96.7%on the digital image was obtained in 100 epochs,which is more accurate than other memristor-based neural *** results show that the memristor device based on CsPbBr3 has immense potential in the neuromorphic computing system.

关键词： Memristor CsPbBr_(3) Resistive switching Artificial synapse Neuromorphic computing

Crystal structure of RNA helicase from Saint Louis encephalitis virus and discovery of its inhibitors

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Genes & Diseases 2023年第2期10卷 389-392页

作者： De-Ping Wang fang-ying jiang Xian-Yan Zeng Yu-Jie Liu Rong Zhao Mei-Yue Wang Jing Luo Chen Chen Yong Zhu Ji-Min Cao Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of EducationAnd the Department of PhysiologyShanxi Medical UniversityTaiyuanShanxi 030001China College of Life Sciences Chongqing Medical UniversityChongqing 400016China Department of Biochemistry and Molecular Biology School of Basic Medical SciencesTianjin Medical UniversityTianjin 300070China Department of Rheumatology The Second Hospital of Shanxi Medical UniversityTaiyuanShanxi 030001China

St. Louis encephalitis virus (SLEV) was first recognized in 1933 and caused a major encephalitis epidemic with 1095 clinical cases and 201 deaths in St. Louis, Missouri.1 According to the median values from 2014 to 2018, the percentage of neuroinvasion by SLEV was 62% and the fatality rate was 9% in the United States.2 The clinical symptoms of SLEV infection include neurological abnormalities such as memory loss, disorientation, and meningoencephalitis. Till now, specific treatments including vaccine and drug are unavailable for SLEV infection. It is of particular importance to get prepared for SLEV infection, especially given the currently raging global COVID-19 epidemic.

关键词： encephalitis invasion clinical

A disk I/O optimized system for concurrent graph processing jobs

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Frontiers of Computer Science 2024年第3期18卷 13-29页

作者： Xianghao XU fang WANG Hong jiang Yongli CHENG Dan FENG Peng fang School of Computer Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Department of Computer Science&Engineering University of Texas at ArlingtonArlingtonTX 76019USA College of Computer and Data Science Fuzhou UniversityFuzhou 350108China Zhejiang Lab Hangzhou 311121China

In order to analyze and process the large graphs with high cost efficiency,researchers have developed a number of out-of-core graph processing systems in recent years based on just one commodity *** the other hand,with the rapidly growing need of analyzing graphs in the real-world,graph processing systems have to efficiently handle massive concurrent graph processing(CGP)***,due to the inherent design for single graph processing job,existing out-of-core graph processing systems usually incur unnecessary data accesses and severe competition of I/O bandwidth when handling the CGP *** this paper,we propose GraphCP,a disk I/O optimized out-of-core graph processing system that efficiently supports the processing of CGP *** proposes a benefit-aware sharing execution model to share the I/O access and processing of graph data among the CGP jobs and adaptively schedule the graph data loading based on the states of vertices,which efficiently overcomes above challenges faced by existing out-of-core graph processing ***,GraphCP adopts a dependency-based future-vertex updating model so as to reduce disk I/Os in the future *** addition,GraphCP organizes the graph data with a Source-Sorted Sub-Block graph representation for better processing capacity and I/O access *** evaluation results show that GraphCP is 20.5×and 8.9×faster than two out-of-core graph processing systems GridGraph and GraphZ,and 3.5×and 1.7×faster than two state-of-art concurrent graph processing systems Seraph and GraphSO.

关键词： graph processing disk I/O concurrent jobs

Ca_(2)MnO_(4)-layered perovskite modified by NaNO_(3)for chemical-looping oxidative dehydrogenation of ethane to ethylene

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Chinese Journal of Chemical Engineering 2024年第4期68卷 53-64页

作者： Weixiao Ding Kun Zhao Shican jiang Zhen Huang fang He College of Chemistry and Bioengineering Guilin University of TechnologyGuilin 541006China Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China

Chemical-looping oxidative dehydrogenation(CL-ODH)is a process designed for the conversion of alkanes into olefins through cyclic redox reactions,eliminating the need for gaseous O_(2).In this work,we investigated the use of Ca_(2)MnO_(4)-layered perovskites modified with NaNO_(3) dopants,serving as redox catalysts(also known as oxygen carriers),for the CL-ODH of ethane within a temperature range of 700-780℃.Our findings revealed that the incorporation of NaNO_(3) as a modifier significantly-nhanced the selectivity for-thylene generation from Ca_(2)MnO_(4).At 750℃and a gas hourly space velocity of 1300 h^(-1),we achieved an-thane conversion up to 68.17%,accompanied by a corresponding-thylene yield of 57.39%.X-ray photoelectron spectroscopy analysis unveiled that the doping NaNO_(3) onto Ca_(2)MnO_(4) not only played a role in reducing the oxidation state of Mn ions but also increased the lattice oxygen content of the redox ***,formation of NaNO_(3) shell on the surface of Ca_(2)MnO_(4) led to a reduction in the concentration of manganese sites and modulated the oxygen-releasing behavior in a step-wise *** modulation contributed significantly to the enhanced selectivity for ethylene of the NaNO_(3)-doped Ca_(2)MnO_(4) *** findings provide compelling evidence for the potential of Ca_(2)MnO_(4)-layered perovskites as promising redox catalysts in the context of CL-ODH reactions.

关键词： Chemical-looping oxidative dehydrogenation Ethane Ethylene NaNO_(3)-doped Ca_(2)MnO_(4)redox catalyst Layered perovskites