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后危机时代我国新兴产业发展的金融支持研究

新金融 2010年第5期 52-55页

作者：袁中华刘小差西藏大学经济与管理学院西南财经大学

国际金融危机之后,各国纷纷推出新兴产业发展战略规划,以图摆脱危机所带来的困扰,调整产业结构,在新一轮发展中抢占经济制高点。自2009年9月温家宝总理连续主持召开三次战略性新兴产业发展座谈会以来,从国家发改委到各地方政府都在紧锣... 详细信息

国际金融危机之后,各国纷纷推出新兴产业发展战略规划,以图摆脱危机所带来的困扰,调整产业结构,在新一轮发展中抢占经济制高点。自2009年9月温家宝总理连续主持召开三次战略性新兴产业发展座谈会以来,从国家发改委到各地方政府都在紧锣密鼓地制定新兴产业发展规划。由于金融在新兴产业发展在其中扮演了相当重要的角色,本文结合我国金融发展现状,对新兴产业的金融支持进行了深入探讨。

关键词：后危机时代新兴产业产业结构调整金融支持

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酒店智能化系统中的节能措施设计

低压电器 2009年第12期 11-15页

作者：周忠民袁强袁忠华上海枫泉通信电子设备有限公司上海200940 上海宝莲投资(集团)有限公司上海200081

根据多年从事智能建筑规划、设计、实施的经验,以某五星级酒店的智能化系统为例,对酒店中高耗能设备冷源系统、空调系统、风机盘管系统、照明系统中采取的一些节能措施进行了介绍,综合运用这些节能措施以期达到节能的目的。

关键词：智能建筑酒店智能化系统空调系统照明节能

PCDH17 restricts dendritic spine morphogenesis by regulating ROCK2-dependent control of the actin cytoskeleton,modulating emotional behavior

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Zoological Research 2024年第3期45卷 535-550页

作者： Laidong Yu Fangfang Zeng Mengshu Fan Kexuan Zhang Jingjing Duan Yalu Tan Panlin Liao Jin Wen Chenyu Wang Meilin Wang Jialong yuan Xinxin Pang Yan Huang Yangzhou Zhang Jia-Da Li Zhuohua Zhang zhonghua Hu Hunan Key Laboratory of Molecular Precision Medicine Department of Critical Care MedicineXiangya HospitalCentral South UniversityChangshaHunan 410008China Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics School of Life SciencesCentral South UniversityChangshaHunan 410008China National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangshaHunan 410008China Hunan Provincial Clinical Research Center for Critical Care Medicine Xiangya HospitalCentral South UniversityChangshaHunan 410008China Hunan Key Laboratory of Animal Models for Human Diseases School of Life SciencesCentral South UniversityChangshaHunan 410008China MOE Key Lab of Rare Pediatric Diseases School of Life SciencesCentral South UniversityChangshaHunan 410008China Department of Neurosciences University of South China Medical SchoolHengyangHunan 421001China

Proper regulation of synapse formation and elimination is critical for establishing mature neuronal circuits and maintaining brain *** abnormalities,such as defects in the density and morphology of postsynaptic dendritic spines,underlie the pathology of various neuropsychiatric *** 17(PCDH17)is associated with major mood disorders,including bipolar disorder and ***,the molecular mechanisms by which PCDH17 regulates spine number,morphology,and behavior remain *** this study,we found that PCDH17 functions at postsynaptic sites,restricting the number and size of dendritic spines in excitatory *** overexpression of PCDH17 in the ventral hippocampal CA1 results in spine loss and anxiety-and depression-like behaviors in ***,PCDH17 interacts with actin-relevant proteins and regulates actin filament(F-actin)***,PCDH17 binds to ROCK2,increasing its expression and subsequently enhancing the activity of downstream targets such as LIMK1 and the phosphorylation of cofilin serine-3(Ser3).Inhibition of ROCK2 activity with belumosudil(KD025)ameliorates the defective F-actin organization and spine structure induced by PCDH17 overexpression,suggesting that ROCK2 mediates the effects of PCDH17 on F-actin content and spine ***,these findings reveal a novel mechanism by which PCDH17 regulates synapse development and behavior,providing pathological insights into the neurobiological basis of mood disorders.

关键词： Synapse development Dendritic spine Mood disorder Actin cytoskeleton Animal behavior

Collective Molecular Machines: Multidimensionality and Reconfigurability

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Nano-Micro Letters 2024年第8期16卷 309-340页

作者： Bin Wang yuan Lu Department of Chemical Engineering Tsinghua UniversityBeijing 100084People’s Republic of China Key Laboratory of Industrial Biocatalysis Ministry of EducationTsinghua UniversityBeijing 100084People’s Republic of China

Molecular machines are key to cellular activity where they are involved in converting chemical and light energy into efficient mechanical *** the last 60 years,designing molecular structures capable of generating unidirectional mechanical motion at the nanoscale has been the topic of intense *** progress has been made,attributed to advances in various fields such as supramolecular chemistry,biology and nanotechnology,and ***,individual molecular machines are only capable of producing nanometer work and generally have only a single *** order to address these problems,collective behaviors realized by integrating several or more of these individual mechanical units in space and time have become a new *** this review,we comprehensively discuss recent developments in the collective behaviors of molecular *** particular,collective behavior is divided into two *** is the appropriate integration of molecular machines to efficiently amplify molecular motions and deformations to construct novel functional *** other is the construction of swarming modes at the supramolecular level to perform nanoscale or microscale *** discuss design strategies for both modes and focus on the modulation of features and ***,in order to address existing challenges,the idea of transferring experience gained in the field of micro/nano robotics is presented,offering prospects for future developments in the collective behavior of molecular machines.

关键词： Molecular machines Collective control Collective behaviors DNA Biomolecular motors

Global adaptive output-feedback tracking with prescribed performance for uncertain nonlinear systems

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Science China(Information Sciences) 2024年第5期67卷 150-164页

作者： yuan WANG Yungang LIU School of Control Science and Engineering Shandong University

At present, one typical control strategy for guaranteeing transient and steady-state performance is funnel control and prescribed performance control. The strategy features completely discarding the system nonlinearities, even if they are completely known and available. Such an intrinsic feature requires the controller to produce a larger control effect to eliminate the negative impact caused by the high nonlinearities, leading to a conservative controller. In this paper, we fully take advantage of known information on nonlinearities in control design, instead of completely discarding it as done in funnel control. Particularly, we leverage adaptive techniques(i.e., high-gain dynamic compensation) to deal with unknown system nonlinearities. Meanwhile, we integrate the tools of output feedback, tracking control, and the performance *** such, an adaptive output-feedback scheme is developed for global tracking with spatiotemporal performance specifications: arbitrarily given tracking accuracy and accuracy-ensured time. A simulation example supports the developed approach.

关键词： uncertain nonlinear systems output feedback prescribed performance unknown control direction dynamic high gain global tracking

Theoretical study on the synergistic mechanism of Fe–Mn in sodium-ion batteries

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Particuology 2024年第10期93卷 284-290页

作者： Yang You Mingliang yuan School of Mineral Processing and Bioengineering Central South UniversityChangsha410083China

This article conducts first-principles calculations to initially explore the construction of two configurations,NaFeO_(2)(NFO)and NaMnO_(2)(NMO),and studies the mixing enthalpies under different Fe–Mn *** results indicate that NaFe3/8Mn5/8O_(2)(NFMO)exhibits the most thermodynamically stable *** calculations on the mixing enthalpies and volume changes during the sodium extraction process for NFO,NMO,and NFMO configurations are presented,along with the partial density of states(PDOS)and Bader charges of transition metals(TM)and *** calculations reveal the synergistic mechanism of Fe and *** and Mn can engage in more complex electron exchanges during sodium extraction,optimizing the internal electron density distribution and overall charge balance,thereby stabilizing the crystal structure and reducing the migration of Fe^(3+)to the sodium layers during deep sodium *** interaction between Fe’s 3d electrons and Mn’s 3d electrons through the shared oxygen atoms’2p orbitals occurs in the Fe–Mn–O *** interaction can lead to a rebalancing of the electron density around Mn³⁺atoms,mitigating the asymmetric electron density distribution caused by the d4 configuration of the lone Mn³⁺and suppressing the Jahn-Teller effect of Mn^(3+).Moreover,the synergistic effects between Fe and Mn can provide a more balanced charge distribution,reducing extreme changes to the charge state of oxygen atoms and decreasing the irreversible oxygen release caused by anionic redox reactions during deep sodium extraction,thereby enhancing the material’s *** in-depth study of the interaction mechanism at the microscopic level when co-doping Fe and Mn offers valuable insights for the rational design and development of high-performance cathode materials.

关键词： First-principles calculations Sodium-ionbatteries Layered oxides NaFe_(3/8)Mn_(3/8)O_(2)

“客耕农”与城市郊区的小农农业——基于上海的实证研究

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中国乡村研究 2015年第1期 198-221页

作者：袁中华华东师范大学社会学系

本文的研究对象是在上海市郊租种土地,以家庭为单位从事高价值农产品种植或养殖的外地农民———'客耕农'。研究表明,随着工业化和城市化的快速推进,本地农民逐渐被客耕农所替代,呈现为农业劳动力在农业产业内的空间梯度转移。与此同时... 详细信息

本文的研究对象是在上海市郊租种土地,以家庭为单位从事高价值农产品种植或养殖的外地农民———'客耕农'。研究表明,随着工业化和城市化的快速推进,本地农民逐渐被客耕农所替代,呈现为农业劳动力在农业产业内的空间梯度转移。与此同时,受居民食品消费结构变迁的影响,客耕农的种养结构也逐渐从粮食作物转型为蔬菜瓜果和水产畜禽。通过实地调查和资料分析可以发现,客耕农呈现出数量大、增长快、来源地相对集中、以家庭经营为主、多从事高值农产品生产和年龄结构优于本地农民等特征。与依赖政府高度计划和财政高额补贴的松江粮食家庭农场不同,客耕农所从事的'新农业'具有'劳动—资本双密集'的特点,其亩产值、净收益及可吸纳的劳动力均远高于粮食作物,通过市场机制获取可观的收益,形成了一种适度规模的高收入小农场。但小农经营的固有弱点和异地务农的特有困境,使得客耕农在大市场和政府面前依然处于相对弱势的地位。地方政府如能真正认识到客耕农对于本地农业生产的不可或缺并加大对其扶持的力度,则既可提升弱势的客耕农的收入水平和生存境况,又能确保农产品的本地自给率和质量安全。

关键词：农业继承人危机客耕农农业结构转型

MAUN:Memory-Augmented Deep Unfolding Network for Hyperspectral Image Reconstruction

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1139-1150页

作者： Qian Hu Jiayi Ma yuan Gao Junjun Jiang Yixuan yuan Electronic Information School Wuhan UniversityWuhan 430072China School of Computer Science and Technology Harbin Institute of TechnologyHarbin 150001China Department of Electronic Engineering Chinese University of Hong KongHong Kong 999077China

Spectral compressive imaging has emerged as a powerful technique to collect the 3D spectral information as 2D *** algorithm for restoring the original 3D hyperspectral images(HSIs)from compressive measurements is pivotal in the imaging *** approaches painstakingly designed networks to directly map compressive measurements to HSIs,resulting in the lack of interpretability without exploiting the imaging *** some recent works have introduced the deep unfolding framework for explainable reconstruction,the performance of these methods is still limited by the weak information transmission between iterative *** this paper,we propose a Memory-Augmented deep Unfolding Network,termed MAUN,for explainable and accurate HSI ***,MAUN implements a novel CNN scheme to facilitate a better extrapolation step of the fast iterative shrinkage-thresholding algorithm,introducing an extra momentum incorporation step for each iteration to alleviate the information ***,to exploit the high correlation of intermediate images from neighboring iterations,we customize a cross-stage transformer(CSFormer)as the deep denoiser to simultaneously capture self-similarity from both in-stage and cross-stage features,which is the first attempt to model the long-distance dependencies between iteration *** experiments demonstrate that the proposed MAUN is superior to other state-of-the-art methods both visually and *** code is publicly available at https://***/HuQ1an/MAUN.

关键词： Deep folding iteration

Gradient microstructure and superior strength-ductility synergy of AZ61 magnesium alloy bars processed by radial forging with different deformation temperatures

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Journal of Materials Science & Technology 2024年第3期170卷 65-77页

作者： Jingfeng Zou Lifeng Ma Yanchun Zhu Ling Qin yuan yuan School of Mechanical Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Heavy Machinery Engineering Research Center of the Ministry Education Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Engineering University of HullCottingham RdHull HU67RXUK National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

Gradient microstructure modification is a cost-efficient strategy for high strength without compromising ductility,which is urgently needed in the fundamental science of engineering *** this study,heterogeneous structures of AZ61 alloy bars with anisotropic gradients(with different grain size distributions from the surface to the center)were observed to exhibit strong strength-ductility synergies under different deformation tem *** results reveal that the grain refinement process under mediumlow temperature deformation conditions(≤350℃)consists of four transition stages along the radial direction,i.e.,twin activations and deformation band formations,dislocation cells and pile-ups,ultrafine sub-grains,and randomly orientated quasi-micron *** deformation temperatures have a great influence on twin activations and deformation band formations,and the high temperature can easily provoke the initiation of non-basal *** deformation bands were determined as a primary nucleation site due to their highly unstable dislocation hindrance *** in combination with the Radial forging(RF)deformation process,the differences of dynamic precipitates can be attributed to microstructural difference and solubility limit of Al at different tem *** summarizing the tensile test results,the sample forged at 350℃exhibited the best strength-ductility synergy,exhibiting the highest elongation(EL)of 23.2%with a 251 MPa yield strength(YS)and 394 MPa ultimate tensile strength(UTS)in center region,and combined with the highest strength value of 256 MPa YS and 420 MPa UTS in the center region,while the EL was slightly degraded to 19.8%.

关键词： Gradient microstructure Radial forging Strength-ductility synergy Magnesium alloy Strengthening mechanism