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Recent advances in metastable alloys for hydrogen storage:a review

Rare Metals 2022年第6期41卷 1797-1817页

作者： Huai-Jun Lin yan.Shan Lu Liu-Ting Zhang Hai-Zhen Liu Kaveh Edalati Adám Révész Institute of Advanced Wear and Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China Guangdong Provincial Key Laboratory of Advance Energy Storage Materials South China University of TechnologyGuangzhou 510640China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Guangxi Colleges and Universities Key Laboratory of Novel Energy Materials and Related Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Novel Battery Materials Research Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Key Laboratory of Processing for Non-Ferrous Metallic and Featured Materials Guangxi UniversityNanning 530004China International Institute for Carbon-Neutral Energy Research(WPI-I2CNER) Kyushu UniversityFukuoka 819-0395Japan Department of Materials Physics E?tv?s UniversityBudapest 1518Hungary

Development of new materials with high hydrogen storage capacity and reversible hydrogen sorp-tion performances under mild conditions has very high value in both fundamental and application *** the past years,some new systems with metastable structures,such as ultra-fine nanocrystalline alloys,amorphous alloys,nanoglass alloys,immiscible alloys,high-entropy alloys,have been abundantly studied as hydrogen storage *** new hydrogen storage properties either from the kinetics or thermodynamics aspects have been *** this review,recent advances of studies on metastable alloys for hydrogen storage applications have been comprehensively *** materials preparation methods to synthesize metastable hydrogen storage alloys are firstly ***,hydrogen storage prop-erties of the metastable alloys are summarized and dis-cussed,focusing on the unique kinetics and thermodynamics properties by forming of such unique metastable *** examples,superior hydrogena-tion kinetics and higher hydrogen storage capacity have been achieved in Mg-based amorphous and nanoglass *** thermodynamics properties can be obtained in the immiscible Mg-Mn and Mg-Zr *** addition to highlighting the recent achievements of metastable alloys in the field of hydrogen storage,the remaining challenges and trends of the emerging research are also discussed.

关键词： Hydrogen storage Metastable alloys Kinetics Thermodynamics

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Changes of the Molecular Mobility of Poly(ε-caprolactone) upon Drawing,Studied by Dielectric Relaxation Spectroscopy

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Chinese Journal of Polymer Science 2018年第5期36卷 665-674页

作者： Xiao-yan.yan. Shao-Shuai Liu AlexANDer v.Korobko Stephen J.Picken Nicolaas A.M.Besseling Lucky Research Institute China Lucky Group Corporation Department of Chemical Engineering Delft University of Technology 2628 BL Delft and Dutch Polymer Institute(DPI)

Dielectric relaxation spectroscopy（DRS） of poly（ε-caprolactone） with different draw ratios showed that the mobility of polymer chains in the amorphous part decreases as the draw ratio increases. The activation energy of the α process, which corresponds to the dynamic glass transition, increases upon drawing. The enlarged gap between the activation energies of the α process and the β process results in a change of continuity at the crossover between the high temperature a process and the α and β processes. At low drawing ratios the a process connects with the β process, while at the highest drawing ratio in our measurements, the a process is continuous with the αprocess. This is consistent with X-ray diffraction results that indicate that upon drawing the polymer chains in the amorphous part align and densify upon drawing. As the draw ratio increases, the α relaxation broadens and decreases its intensity, indicating an increasing heterogeneity. We observed slope changes in the α traces, when the temperature decreases below that at which τα≈ 1 s. This may indicate the glass transition from the ‘rubbery＇ state to the non-equilibrium glassy state.

关键词： Semicrystalline polymer Dielectric relaxation spectroscopy Molecular mobility

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Magnetic susceptibility inversion method with full tensor gradient data using low-temperature SQUIDs

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Petroleum Science 2019年第4期16卷 794-807页

作者： yan.Fei Wang Liang-Liang Rong Long-Qing Qiu D.v.Lukyan.nko A.G.Yagola Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China University of the Chinese Academy of Sciences Beijing 100049China Institutions of Earth Science Chinese Academy of SciencesBeijing 100029China Shanghai Institute of Microsystem and Information Technology Chinese Academy of SciencesShanghai 200050China Physical Faculty Lomonosov Moscow State UniversityMoscowRussia 119991

Full tensor magnetic gradient measurements are available nowadays. These are essential for determining magnetization parameters in deep layers. Using full or partial tensor magnetic gradient measurements to determine the subsurface properties, e.g., magnetic susceptibility, is an inverse problem. Inversion using total magnetic intensity data is a traditional *** of di culty in obtaining the practical full tensor magnetic gradient data, the corresponding inversion results are not so widely reported. With the development of superconducting quantum interference devices(SQUIDs), we can acquire the full tensor magnetic gradient data through field measurements. In this paper, we study the inverse problem of retrieving magnetic susceptibility with the field data using our designed low-temperature SQUIDs. The solving methodology based on sparse regularization and an alternating directions method of multipliers is established. Numerical and field data experiments are performed to show the feasibility of our algorithm.

关键词： Full tensor magnetic gradient Susceptibility Sparse regularization

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Ion Channel Dysregulation Following Intracerebral Hemorrhage

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Neuroscience Bulletin 2024年第3期40卷 401-414页

作者： Xiangyu Zhang yan.Zhang Qiuyan. Su yan. Liu Zhe Li v.Wee Yong Mengzhou Xue Department of Cerebrovascular Diseases The Second Afliated Hospital of Zhengzhou UniversityZhengzhou 450000China Academy of Medical Science Zhengzhou UniversityZhengzhou 450000China Hotchkiss Brain Institute and Department of Clinical Neurosciences University of CalgaryCalgaryAB T2N 1N4Canada

Injury to the brain after intracerebral hemorrhage(ICH)results from numerous complex cellular *** present,effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve *** is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following *** channels such as TWIK-related K+channel 1,sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in *** in turn participate in the formation of brain edema,disruption of the blood-brain barrier,and the generation of *** this review,we summarize the interaction between ions and ion channels,the effects of ion channel dysregulation,and we discuss some therapeutics based on ion-channel modulation following ICH.

关键词： Intracerebral hemorrhage Ion dyshomeostasis Sulfonylurea 1 transient receptor potential melastatin 4 TWIK-related K+channel 1 N-methyl-Daspartate receptor Transient receptor potential vanilloid 4

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Seeing Human Weight from a Single RGB-D Image

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Journal of Computer Science & Technology 2014年第5期29卷 777-784页

作者： Tam v. Nguyen 冯佳时颜水成 ARTIC Centre Department for TechnologyInnovation and Enterprise Singapore Polytechnic Singapore 139651 Singapore Department of Electrical Engineering and Computer Sciences University of CaliforniaBerkeley CA 94720 U.S.A. Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583 Singapore Senior MemberIEEE

Human weight estimation is useful in a variety of potential applications, e.g., targeted advertisement, entertainment scenarios and forensic science. However, estimating weight only from color cues is particularly challenging since these cues are quite sensitive to lighting and imaging conditions. In this article, we propose a novel weight estimator based on a single RGB-D image, which utilizes the visual color cues and depth information. Our main contributions are ***, we construct the W8-RGBD dataset including RGB-D images of different people with ground truth weight. Second,the novel sideview shape feature and the feature fusion model are proposed to facilitate weight estimation. Additionally, we consider gender as another important factor for human weight estimation. Third, we conduct comprehensive experiments using various regression models and feature fusion models on the new weight dataset, and encouraging results are obtained based on the proposed features and models.

关键词： RGB-D image depth information human weight estimation

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White Organic Light Emitting Devices Based on Multiple Emissive Nanolayers

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Nano-Micro Letters 2010年第4期2卷 242-246页

作者： M.v.Madhava Rao yan.Kuin Su T.S.Huang Yi-Chun Chen Institute of Microelectronics Department of Electrical Engineeringand Advanced Optoelectronic Technology CenterNational Cheng Kung University

In this paper,a white organic light-emitting device(WOLEDs) with multiple-emissive-layer structure has been *** device has a simple structure of indium tin oxide(ITO)/NPB(20 nm)//DPvBi(20 nm)/CDBP:x Ir(btp)2acac(10 nm)/Alq3(25 nm)/BCP(5 nm)/Cs F(1 nm)/Al(150 nm)(x= 0.15,2.5 and 3.0 wt%),where NPB and BCP are used as the hole-injecting layer,electron transporting and hole blocking layer,*** light emission was realized in an OLED with 2.5% Ir(btp)2acac doping *** device exhibits peak efficiency of 1.93 cd/A at 9 v and maximum brightness of 7005 cd/m^2 at 14 *** Commission International de I'Eclairage(CIE)(1931) coordinates of white emission are well within the white zone,which moves from(0.35,0.33) to(0.26,0.30) when the applied voltage is varied from 5 v to 14 v.

关键词： Multilayer structure Organic light-emitting device White emission

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About ocean lithodynamics

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Acta Oceanologica Sinica 1994年第4期13卷 527-529,230+531-533页

作者： v. v. Longinov R. D. Kos’yan The P.P.Shirshov institute of Oceanology Russian Academy of audiencesRussia The Southern Branch of the P.P.Shirshov institute of Oceanology Russian Academy of audiencesOkeanologia353470Gelendzhik-7Russia

The term 'lithodynamics' is suggested to denote processes of sediment transport due to exogenic factors and gravity, and also a branch of geosciences studying these processes. Integration of investigations, both of earth surface and of ocean, within one common branch of science is recommended. Basic notions and tasks of lithodynamics as applied to sediment transport processes are described.

关键词： t?

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Joint offloading strategy based on quantum particle swarm optimization for MEC-enabled vehicular networks

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Digital Communications and Networks 2023年第1期9卷 56-66页

作者： Wanneng Shu yan.Li College of Computer Science South-Central University for NationalitiesWuhan430074China College of Science Huazhong Agricultural UniversityWuhan430070China

With the development of the mobile communication technology,a wide variety of envisioned intelligent transportation systems have emerged and put forward more stringent requirements for vehicular *** of computation-intensive and power-hungry applications result in a large amount of energy consumption and computation costs,which bring great challenges to the on-board *** is necessary to exploit traffic offloading and scheduling in vehicular networks to ensure the Quality of Experience(QoE).In this paper,a joint offloading strategy based on quantum particle swarm optimization for the Mobile Edge Computing(MEC)enabled vehicular networks is *** minimize the delay cost and energy consumption,a task execution optimization model is formulated to assign the task to the available service nodes,which includes the service vehicles and the nearby Road Side Units(RSUs).For the task offloading process via vehicle to vehicle(v2v)communication,a vehicle selection algorithm is introduced to obtain an optimal offloading decision ***,an improved quantum particle swarm optimization algorithm for joint offloading is proposed to optimize the task delay and energy *** maintain the diversity of the population,the crossover operator is introduced to exchange information among ***,the crossover probability is defined to improve the search ability and convergence speed of the ***,an adaptive shrinkage expansion factor is designed to improve the local search accuracy in the later *** results show that the proposed joint offloading strategy can effectively reduce the system overhead and the task completion delay under different system parameters.

关键词： Computation offloading MEC-enabled vehicular networks Mobile edge computing Task scheduling

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Stability of Planar Diffusion Wave for the Quasilinear Wave Equation with Nonlinear Damping

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Acta Mathematicae Applicatae Sinica 2015年第1期31卷 17-30页

作者： yan.YONG College of Science University of Shanghai for Science and Technology

In this paper, we will show that under some smallness conditions, the planar diffusion wave v（x1/√＋t）is stable for a quasilinear wave equation with nonlinear damping：vtt-△f（v）＋vt＋g（vt）=0_3 x=（x1,x2…,xn）∈Rn,where v（x1/√1＋t）is the unique similar solution to the one dimensional nonlinear heat equa-tion：vt-f（v）x1 x1=0,f＇（v）〉0,v＋（∞,t）=v±,v＋≠v_.We also obtain the L∞ time decay rate whichreads‖v-v‖L∞=О（1）（1＋t）-r/4,where r=min（3,n）.To get the main result, the energy method and a newinequality have been used.

关键词： stability planar diffusion wave quasilinear wave equation nonlinear damping

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Some Polynomial Maps with Jacobian Rank Two or Three

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Algebra Colloquium 2022年第2期29卷 341-360页

作者： Dan yan MOE-LCSM School of Mathematics and Statistics Hunan Normal UniversityChangsha 410081China

We classify all polynomial maps of the form H=(u(x,y,z),v(x,y,z),h(x,y))in the case when the Jacobian matrix of H is nilpotent and the highest degree of z in v is no more than *** addition,we generalize the structure of polynomial maps H to H=(H_(1)(x_(1),x_(2),…,x_(n)),b_(3)x_(3)+…+b_(n)x_(n)+H^((0))_(2)(x_(2)),H_(3)(x_(1),x_(2)),…,H_(n)(x_(1),x_(2))).

关键词： Jacobian conjecture nilpotent Jacobian matrix polynomial maps

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