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Hippocampal dopamine as a key regulator for learning deficits in Parkinson's disease

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Neural Regeneration Research 2024年第6期19卷 1193-1194页

作者： kun wu Shuai Liu Shanghai Key Laboratory of Brain Functional Genomics(Ministry of Education) Affiliated Mental Health Center(ECNU)School of Psychology and Cognitive ScienceEast China Normal UniversityShanghaiChina Shanghai Changning Mental Health Center ShanghaiChina NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai ShanghaiChina

Parkinson's disease(PD)is a progressive neurodegenerative disorder with clinical symptoms of involuntary or uncontrollable movements such as tremors,rigidity,and *** learning deficit is largely overlooked in the past ... 详细信息

关键词： impaired dopamine clinical

Reversal of circularly polarized luminescence direction and an“onoff”switch driven by exchange between UV light irradiation and the applied direct current electric field

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Science China Chemistry 2022年第10期65卷 1945-1952页

作者： kun Yao Zheng Liu Hang Li Dan Xu Wen-hua Zheng Yi-wu Quan Yi-Xiang Cheng Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education Department of Polymer Science and EngineeringSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

We report the rational design of a dual stimulus-activated quaternary chiral emission nematic liquid crystals(Q-N*-LCs)containing light-driven chiral dopant R-S-R-1,a static chiral dopant S-2 and an achiral Nile Red(NR)in a nematic liquid crystal(SLC1717).The dopant R-S-R-1 acts as a dynamic chiral donor and an energy donor,and the achiral NR serves as a circularly polarized luminescence(CPL)emitter and energy ***,this kind of Q-N*-LCs appears reversal CPL emission direction(L-CPL)using 365 nm UV light irradiation compared with the initial state(R-CPL).Most importantly,the“On-Off”CPL switch behavior of Q-N*-LCs can be repeatedly driven by revoking or rearranging the applied direct current(DC)electric *** OR chiral information logic gate demonstrates that this dual driven Q-N*-LCs can be potentially used for chiral information storage and coding.

关键词： chiral supramolecular liquid crystals circularly polarized luminescence light and electricity dual stimuli-activated Förster resonance energy transfer

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ON THE CELL ENTROPY INEQUALITY FOR THE FULLY DISCRETE RELAXING SCHEMES

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Journal of Computational Mathematics 2001年第5期19卷 511-518页

作者： hua-zhong Tang hua-mo wu School of Mathematical Sciences Peking UniversityBeijing 100871China LSEC JCMSECAcademy of Mathematics and Systems SciencesChinese Academy of SciencesBeijing 100080China

Presents a study on the cell entropy inequality for two classes of fully discrete relaxing schemes approximating scalar conservation laws. Main advantage of the schemes; Review of the construction of the relaxing syst... 详细信息

关键词： the relaxing schemes entropy inequality conservation laws

ON THE CONVERGENCE OF IMPLICIT DIFFERENCE SCHEMES FOR HYPERBOLIC CONSERVATION LAWS

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Journal of Computational Mathematics 2002年第2期20卷 121-128页

作者： hua-zhong Tang hua-mo wu School of Mathematical Sciences Peking UniversityBeijing 100871China LSEC ICMSECAcademy of Mathematics and System SciencesChinese Academy of SciencesBeijing 100080China

Discusses the treatment of implicit difference approximations to hyperbolic conservation laws with non-convex flux. Information on weighted implicit difference schemes; Convergence of difference scheme; Establishment ... 详细信息

关键词： conservation laws weighted implicit schemes entropy solution

Scanning tunneling spectroscopic study of monolayer 1T-TaS2 and 1T-TaSe2

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Nano Research 2020年第1期13卷 133-137页

作者： Haicheng Lin Wantong huang kun Zhao Shuang Qiao Zheng Liu Jian wu Xi Chen Shuai-hua Ji State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing100084China Institute for Advanced Studies Tsinghua UniversityBeijing100084China

The isostructural and isoelectronic transition-metal-dichalcogenides 1T-TaS2 and 1T-TaSe2 are layered materials with intricate electronic *** the molecular beam epitaxy growth,scanning tunneling microscopy measurements and first-principles calculations,we prepare monolayer 1T-TaS2 and TaSe2 and explore their electronic structures at the atomic *** two-dimensional(2D)compounds exhibit commensurate charge density wave phase at low *** conductance mapping identifies the contributions from different Ta atoms to the local density of states with spatial and energy *** 1T-TaS2 and 1T-TaSe2 monolayer are shown to be insulators,while the former has a Mott gap and the latter is a regular band insulator.

关键词： monolayer 1T-TaS2 1T-TaSe2 commensurate charge density wave(CCDW) Mott gap band insulator

An in-situ generated Bi-based sodiophilic substrate with high structural stability for high-performance sodium metal batteries

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Journal of Energy Chemistry 2022年第8期31卷 595-603,I0016页

作者： Lulu Li Ming Zhu Guanyao Wang Fangfang Yu Liaoyong Wen hua-kun Liu Shi-Xue Dou Chao wu School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Institute for Superconducting&Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongNSW2522Australia Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake UniversityHangzhou 310024ZhejiangChina

Sodium(Na)metal anode exhibits a potential candidate in next-generation rechargeable batteries owing to its advantages of high earth abundance and low ***,the practical development of sodium metal batteries is inherently plagued by challenges such as the side reactions and the growth of Na *** we report a highly stable Bi-based“sodiophilic”substrate to stabilize Na anode,which is created by in-situ electrochemical reactions of 3D hierarchical porous Bi_(2)MoO_(6)(BMO)*** is initially transformed into the Bi“nanoseeds”embedded in the Na-Mo-O ***,the Bi nanoseeds working as preferential nucleation sites through the formation of BiNa alloy enable the non-dendritic Na *** asymmetric cells based on such BMO-based substrate can deliver a long-term cycling for 600 cycles at a large capacity of 4 m Ah cm^(-2) and for 800 cycles at a high current density of 10 m A cm^(-2).Even at a high depth of discharge(66.67%),the Na-predeposited BMO(Na@BMO)electrodes can cycle for more than 1600 *** limited Na@BMO anodes coupled with the Na_(3)V_(2)(PO_(4))_(3) cathodes(N/P ratio of 3)in full cells also show excellent electrochemical performance with a capacity retention of about 97.4%after 1100 cycles at 2 C.

关键词： Sodium metal anode Bi_(2)MoO_(6)microspheres Sodiophilic substrate Conversion and alloying reaction Uniform sodium deposition

Influence of Heat Treatment Temperature on Microstructure and Property of 00Cr13Ni5Mo2 Supermartensitic Stainless Steel

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Journal of Iron and Steel Research International 2014年第3期21卷 364-368页

作者： De-ning ZOU Xiao-hua LIU Ying HAN Wei ZHANG Jiao LI kun wu School of Metallurgy and Engineering Xi'an University of Architecture and Technology Key Laboratory of Advanced Structural Materials of Ministry of Education Changchun University of Technology State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University

The microstructural evolution and mechanical property of 00Crl3NiSMo2 supermartensitic stainless steel （SMSS） subjected to different heat treatments were investigated. Room tensile tests, hardness tests, scanning elec- tron microscopy, transmission electron microscopy and X ray diffraction were conducted on the heat-treated steels. It is found that the microstructure of the heat-treated steel is composed of tempered lath martensite, retained austenite and ^-ferrite. The austenitizing temperature and tempering temperature have a significant effect on the microstrtlctur al changes, which leads to the complex variations of mechanical properties. The fine tempered lath martensite and more dispersed reversed austenite in the microstructure facilitate improving the comprehensive mechanical properties of the studied steel. The optimal heat treatment process of 00Crl3Ni5Mo2 SMSS is obtained by austenitizing at 1000 ℃ for 0.5 h＋air cooling followed by tempering at 630 ℃ for 2 h＋air cooling, where the excellent combination of ten- sile strength, elongation and hardness can be achieved.

关键词： supermartensitic stainless steel heat treatment microstructure mechanical property reversed austenite

A Survey of Image Synthesis and Editing with Generative Adversarial Networks

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Tsinghua Science and Technology 2017年第6期22卷 660-674页

作者： Xian wu kun Xu Peter Hall TNList and the Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China the Department of Computer Science University of BathBathUK

This paper presents a survey of image synthesis and editing with Generative Adversarial Networks（GANs）. GANs consist of two deep networks, a generator and a discriminator, which are trained in a competitive way. Due to the power of deep networks and the competitive training manner, GANs are capable of producing reasonable and realistic images, and have shown great capability in many image synthesis and editing *** paper surveys recent GAN papers regarding topics including, but not limited to, texture synthesis, image inpainting, image-to-image translation, and image editing.

关键词： image synthesis image editing constrained image synthesis generative adversarial networks imageto-image translation

Investigation of system structure and information processing mechanism for cognitive skywave over-the-horizon radar

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Journal of Systems Engineering and Electronics 2016年第4期27卷 797-806页

作者： Xia wu Jianwen Chen kun Lu Key Laboratory for Radar Application Engineering Wuhan Institute of RadarWuhan 430019China Nanjing Research Institute of Electronics Technology Nanjing 210039China

Based on the cognitive radar concept and the basic connotation of cognitive skywave over-the-horizon radar（SWOTHR）, the system structure and information processingmechanism about cognitive SWOTHR are researched. Amongthem, the hybrid network system architecture which is thedistributed configuration combining with the centralized cognition and its soft/hardware framework with the sense-detectionintegration are proposed, and the information processing framebased on the lens principle and its information processing flowwith receive-transmit joint adaption are designed, which buildand parse the work law for cognition and its self feedback adjustment with the lens focus model and five stages informationprocessing sequence. After that, the system simulation andthe performance analysis and comparison are provided, whichinitially proves the rationality and advantages of the proposedideas. Finally, four important development ideas of futureSWOTHR toward ＂high frequency intelligence information processing system＂ are discussed, which are scene information fusion, dynamic reconfigurable system, hierarchical and modulardesign, and sustainable development. Then the conclusion thatthe cognitive SWOTHR can cause the performance improvement is gotten.

关键词： cognitive radar skywave over-the-horizon radar system structure intelligence information processing information fusion target detection