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Earthquake Engineering and Engineering Vibration 2010年第1期9卷 103-112页

作者： c.s. Tsai Yung-chang Lin Wen-shin chen H.c. su D G epartment of civil Engineering Feng Chia University Taichung Chinese Taipei Graduate Institute of civil and Hydraulic Engineering Feng Chia University Taichung Chinese Taipei Department of Water Resources Engineering and conservation Feng Chia University Taichung Chinese Taipei

Recently, the high-tech industry has become a key industry for economic development in many countries. However, vibration sensitive equipment located in these industrial buildings is vulnerable during earthquakes, which may cause huge economic loss. In this study, an innovative isolator for safeguarding the vibration sensitive equipment, namely, the static dynamics interchangeable^all pendulum system （sDI-BPs） is proposed and investigated to examine its protective capability for the vibration sensitive equipment during earthquakes through a series of tri-directional shaking table tests. The experimental results illustrate that the sDI-BPs isolator can provide significant damping to rolling types of base isolation systems for reducing the bearing displacement and size, and avoid the stress concentration, which can cause damage or scratches on the rolling surface of the isolator, to prolong its life span of service. The sDI-BPs isolator also provides excellent capability in protecting the vibration sensitive equipment and exhibits a stable behavior under long terms of service loadings and earthquakes.

关键词： ball pendulum system critical equipment base isolation vibration sensitive equipment base isolator passive control earthquake engineering structural control

Dual-Donor-Induced crystallinity Modulation Enables 19.23% Efficiency Organic solar cells

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NANO-MIcRO LETTERs 2025年第1期17卷 1-13页

作者： Liang, Anhai sun, Yuqing chung, sein shin, Jiyeong sun, Kangbo Zhu, chaofeng Zhao, Jingjing Zhao, Zhenmin Zhong, Yufei Zhang, Guangye cho, Kilwon Kan, Zhipeng Guangxi Univ Inst Sci & Technol Carbon Peak & Neutral Ctr Nanoenergy Res Sch Phys Sci & Technol Nanning 530004 Peoples R China Pohang Univ sci & Technol Dept Chem Engn Pohang 37673 South Korea shenzhen Technol Univ Coll New Mat & New Energies Shenzhen 518118 Peoples R China NingboTech Univ Zhejiang Engn Res Ctr Fabricat & Applicat Adv Phot Sch Mat Sci & Engn Ningbo 315100 Peoples R China state Key Lab Featured Met Mat & Life cycle safety Nanning 530004 Peoples R China

By modulating the crystalline properties of the active layer with dual donors, the efficiency of organic solar cells reaches 19.23%.The introduction of PTzBI-dF suppresses the accumulation of traps and charge recombination, allowing ternary devices to maintain 82% of their initial power conversion efficiency (PcE) after illumination for 800 *** dual-donor strategy for modulating the crystallinity of the active layer is applicable to a variety of Y6 derivatives, and the increase in PcE exceeds 1%. Trap-assisted charge recombination is one of the primary limitations of restricting the performance of organic solar cells. However, effectively reducing the presence of traps in the photoactive layer remains challenging. Herein, wide bandgap polymer donor PTzBI-dF is demonstrated as an effective modulator for enhancing the crystallinity of the bulk heterojunction active layers composed of D18 derivatives blended with Y6, leading to dense and ordered molecular packings, and thus, improves photoluminescence quenching properties. As a result, the photovoltaic devices exhibit reduced trap-assisted charge recombination losses, achieving an optimized power conversion efficiency of over 19%. Besides the efficiency enhancement, the devices comprised of PTzBI-dF as a third component simultaneously attain decreased current leakage, improved charge carrier mobilities, and suppressed bimolecular charge recombination, leading to reduced energy losses. The advanced crystalline structures induced by PTzBI-dF and its characteristics, such as well-aligned energy level, and complementary absorption spectra, are ascribed to the promising performance improvements. Our findings suggest that donor phase engineering is a feasible approach to tuning the molecular packings in the active layer, providing guidelines for designing effective morphology modulators for high-performance organic solar cells.

关键词： Trap-assisted charge recombination Photoluminescence Miscibility current leakage Power conversion efficiency

Enhancing the Faradaic efficiency of solid oxide electrolysis cells: progress and perspective

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npj computational Materials 2023年第1期9卷 803-816页

作者： Prashik s.Gaikwad Kunal Mondal Yun Kyung shin Adri c.T.van Duin Gorakh Pawar Department of Material science and Manufacturing Engineering Idaho National LaboratoryIdaho FallsID 83415USA Department of Mechanical Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA

To reduce global warming,many countries are shifting to sustainable energy production *** oxide electrolysis cells(sOEcs)are being considered due to their high hydrogen generation ***,low faradaic efficiency in scaling sOEc technology affects costs and limits large-scale adoption of hydrogen as *** review covers sOEcs’critical aspects:current state-of-the-art anode,cathode,and electrolyte materials,operational and materials parameters affecting faradaic efficiency,and computational modeling techniques to resolve bottlenecks affecting sOEc faradaic efficiency.

关键词： shifting electrolyte solid

Effect of Temperature on structural and Magnetic Properties of Laser Ablated Iron Oxide Deposited on si（100）

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chinese Physics Letters 2009年第11期26卷 211-214页

作者： shahid M. Ramay saadat A. siddiqi M. sabieh Anwar s. c. shin centre for solid state Physics University of Punjab Lahore-54590 Pakistan school of science and Engineering Lahore University of Management Sciences (LUMS) Opposite Sector U D.H.A Lahore 54972 Pakistan Department of Physics KAIST 373-1 Guseong-dong Yuseong-gu Daejeon 305-701 Republic of Korea

We fabricate Fe3O4 thin films on si（100） substrates at different temperatures using pulsed laser deposition, and study the effect of annealing and deposition temperature on the structural and magnetic properties of Fe3O4 thin films. subsequently, the films are characterized by x-ray diffraction （XRD）, scanning electron microscopy （sEM） and vibrating sample magnetometery （VsM）. The XRD results of these films confirm the presence of the Fe3O4 phase and show room-temperature ferromagnetism, as observed with VsM. We demonstrate the optimized deposition and annealing conditions for an enhanced magnetization of 854 emu/cm3 that is very high when compared to the bulk sample.

关键词： condensed matter: electrical magnetic and optical surfaces interfaces and thin films condensed matter: structural mechanical & thermal

spin synthesis of monolayer of siO_2 thin films

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Journal of semiconductors 2015年第4期36卷 16-25页

作者： s.s.shinde s.Park J.shin Korea Research Institute of standards and science

The highly ordered monolayer of submicron size silica （siO2） particles （235 nm） is developed on p-silicon by using three-step spin-coating in colloidal suspension, which has significant potential in various applications. The influence of three-step spin speeds, spinning time, acceleration time between different steps, concentration of siO2 particles in the solution, solution quantity, and the ambient humidity （relative humidity） on the properties ofmonolayer siO2 are studied in order to achieve a large area monolayer film. A relatively high surface coverage and uniform monolayer film of siO2 particles in the range of 85%-90% are achieved by appropriate control of the preparative parameters. We conclude that this method can be useful in industrial applications, because of the fabrication speed, surface coverage and cost of the process.

关键词： thin films spin synthesis electron microscopy

Mn_(3)O_(4) based materials for electrochemical supercapacitors: Basic principles, charge storage mechanism, progress, and perspectives

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Journal of Materials science & Technology 2022年第35期130卷 227-248页

作者： s.A.Beknalkar A.M.Teli T.s.Bhat K.K.Pawar s.s.Patil N.s.Harale J.c.shin P.s.Patil Thin Film Materials Laboratory Department of PhysicsShivaji UniversityKolhapur 416-009India Division of Electronics and Electrical Engineering Dongguk University-SeoulSeoul 04620South Korea school of Nano-science and Technology Shivaji UniversityKolhapur 416-009India Department of Physics Sadguru Gadage MaharajCollege KaradSataraMississippi 415110India

The captivating properties of supercapacitors(scs) such as high power and reasonably high energy densities made them stand up as a versatile solution to emerging energy storage ***,everyone is in pursuit of improvisation of the energy storage characteristics of *** or manganese oxide(Mn_(3)O_(4)) is a widely studied electrode material considering its fascinating features such as high theoretical capacitance(1370 F/g),variable oxidization states,prominent Jahn-Teller effect,broad potential window,environmentally benign and cost-effectiveness.A lot of research has been carried out on this material to unfold and improve its electrochemical *** this review,comprehensive knowledge and innovative attempts taken to improve its energy storage of Mn_(3)O_(4)material are ***,the basic properties concerned with electrochemical charge storage such as valance states,crystal structure,band diagram and energy storage mechanism are discussed,followed by putting forth the limitations of Mn_(3)O_(4).Later on,various strategies adopted to improve the electrochemical attributes of Mn_(3)O_(4)such as making composite with carbon-based materials,metal-based materials,polymers or doping metal atoms are ***,remarks on key scientific points and perspectives for further development of energy storage in Mn_(3)O_(4)conclude this review.

关键词： supercapacitors Nanostructures Mn_(3)O_(4)based composites

Low cycle fatigue properties and cyclic deformation behavior of as-extruded AZ31 magnesium alloy

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Transactions of Nonferrous Metals society of china 2010年第B07期20卷 533-539页

作者： s.KWON K.sONG K.s.shin s.I.KWUN Department of Materials science and Engineering Korea University school of Materials science and Engineering Seoul National University

The low cycle fatigue(LcF)properties of as-extruded AZ31 Mg alloy were investigated under total strain amplitudes in the range of 0.4%-1.2%with strain rate of 1×10- 2s -*** to the twinning effect in compression during loading and the detwinning effect during unloading,the alloy showed an asymmetric hysteresis *** cyclic stress response exhibited cyclic hardening at high total strain *** cyclic deformation behaviors were discussed using the coffin-Manson plot,which divided the plastic strain amplitudes into the tension side and the compression *** the LcF tests that were started from either tension or compression under a total strain amplitude of 1.0%,the interaction between the twinning effect and dislocation was *** twinning effect during the LcF test and the variation of the dislocation density were investigated using optical microscopy and transmission electron microscopy,respectively.

关键词： AZ31 magnesium alloy low cycle fatigue twinning dislocation

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： s.sAURABH R.KIRAN D.sINGH R.VAIsH V.s.cHAUHAN school of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHsDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the c0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. Various helicoidal layup configurations including helicoidal recursive(HR), helicoidal exponential(HE), helicoidal semi-circular(Hs), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

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HYERs—ULAM—RAssIAs sTABILITY OF QUADRATIc FUNcTIONAL EQUATIONs IN BANAcH MODULEs OVER A c^＊—ALGEBRA

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chinese Annals of Mathematics,series B 2003年第2期24卷 261-266页

作者： c. PARK J. PARK J. shin Department of Mathematics Chungnam National University DaeJeon 305-764 South Korea.Department of Mathematics Chungnam National University DaeJeon 305-764 South Korea.Department of Mathematics Chungnam National University DaeJeon 305-764 South Korea.

The authors prove the Hyers-Ulam-Rassias stability of the quadratic mapping in Banachmodules over a unital c*-algebra, and prove the Hyers-Ulam-Rassias stability of the quadraticmapping in Banach modules over a unital... 详细信息

关键词： stability B-quadratic Functional equation Banach module over Banach algebra