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| 1 | INTERFACE REACTION IN MAGNETIC MULTILAYERS显示文摘Ta/NiO/NiFe/Ta multilayers were prepared by rf reactive and dc magnetron sputtering. The exchange coupling field (Hex) between NiO and NiFe reached 120Oe. The composition and chemical states at the interface region of NiO/NiFe were studied using the x-ray photoelectron spectroscopy (XPS) and peak decomposition technique. The results show that there are two thermodynamically favorable reactions at NiO/NiFe interface: NiO+Fe=Ni+FeO and 3NiO+2Fe = 3Ni+Fe2O3. The thickness of the chemical reaction as estimated by angle-resolved XPS was about 1-1.5nm. These interface reaction products are magnetic defects, and we believe that the Hex and the coercivity (Hc) of NiO/NiFe are affected by these defects. Moreover, the results also show that there is an 'intermixing layer' at the Ta/NiO (and NiO/Ta) interface due to a thermodynamically favorable reaction: 2Ta+5NiO=5Ni+ Ta2O5. This interface reaction has an effect on the exchange coupling as well. The thickness of the 'intermixing layer' as estimated by XPS depth-profiles was about 8-10nm. | G.H. Yu, M.H Li, F. W Zhu, X.F. Cui and J.L. Jin ( Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083, China) ( State key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing | 2001 | Acta Metallurgica Sinica(English Letters)2001,14,6: | 47 |
| 2 | 基于HHT和CSSD的多域融合自适应脑电特征提取方法显示文摘为改善运动想象脑电信号特征提取的自适应性和实时性,提出一种基于希尔伯特-黄变换(HHT)与共空域子空间分解算法(CSSD)的特征提取方法(HCSSD).在对脑电信号进行预处理的基础上,定义一种相对距离准则优选脑电极组合;计算脑电的Hilbert瞬时能量谱和边际能量谱,以获取脑电的时-频特征,并基于CSSD提取其空域特征,采用串行特征融合策略得到脑电的时-频-空特征;设计学习矢量量化神经网络分类器,实现脑电数据分类.在训练集与测试集间隔一周且减少导联数量的情况下,基于HCSSD对左手小指和舌头的运动想象ECoG脑电数据的平均识别率为92%.实验结果表明:HCSSD在增强特征提取方法的自适应性、改善实时性的同时,提高了脑电信号识别率,为便携式BCI系统在康复领域的应用创造了条件. | 李明爱 崔燕 杨金福 郝冬梅 | 2013 | 电子学报2013,41,12: | 36 |
| 3 | Energy Dissipation and Transport in Nanoscale Devices显示文摘Understanding energy dissipation and transport in nanoscale structures is of great importance for the design of energy-efficient circuits and energy-conversion systems.This is also a rich domain for fundamental discoveries at the intersection of electron,lattice(phonon),and optical(photon)interactions.This review presents recent progress in understanding and manipulation of energy dissipation and transport in nanoscale solid-state structures.First,the landscape of power usage from nanoscale transistors(~10^(-8) W)to massive data centers(~10^(-9) W)is surveyed.Then,focus is given to energy dissipation in nanoscale circuits,silicon transistors,carbon nanostructures,and semiconductor nanowires.Concepts of steady-state and transient thermal transport are also reviewed in the context of nanoscale devices with sub-nanosecond switching times.Finally,recent directions regarding energy transport are reviewed,including electrical and thermal conductivity of nanostructures,thermal rectification,and the role of ubiquitous material interfaces. | Eric Pop | 2010 | Nano Research2010,3,3: | 31 |
| 4 | 界面导热材料研究进展显示文摘综述了导热脂、导热胶黏剂、导热橡胶、导热胶带及相变材料等几类界面导热材料(TIMs)的组成成分、制备方法、主要性能、应用领域及其优化设计方法,并对国内外界面导热材料的发展进行了展望。 | 丁孝均 赵云峰 | 2010 | 宇航材料工艺2010,40,6: | 24 |
| 5 | New type of spherical pore Al alloy foam with low porosity and high strength显示文摘A computer system for displacement sensor is developed to obtain the real-time curve of the liquid porosity of molten Al alloy foam. The relationship between the curve of Pl-t and the change of the shape of the cells (spherical, similar spherical and polygonal) in the foaming process is analyzed. The changes of cell diameter and cell wall thickness are studied. And the the controlling methods of a new Al alloy foam with spherical pores, low porosity and high strength are developed on this basis. Also, the stress-strain curve during compressive deforma- tion and energy absorption characteristics are investigated and compared with polygonal pore Al alloy foam with high porosity. | ZOU Yi HE Deping JIANG Jiaqiao | 2004 | Science China Chemistry2004,47,5: | 21 |
| 6 | Methane and nitrous oxide concentration and emission flux of Yangtze Delta plain river net显示文摘Methane (CH4) and nitrous oxide (N2O) saturation concentration and gas-water interface emission flux in surface water of the Yangtze Delta plain river net were investigated in summer at representative sites including the upper reaches of the Huangpu River and the rivers in the Chongming Island. The results show that the CH4 concentration in river water ranged from 0.30±0.03 to 6.66±0.14 μmol.L-1, and N2O concentration ranged from 13.8±2.33 to 435±116 nmol.L-1. River surface water had a very high satura- tion level of CH4 (from 468±49.0% to 11560±235%) and that of N2O (from 175±29.5% to 4914±1304%). Dissolved oxygen (DO) was the primary factor controlling the CH4 concentration in water. N2O concentration had significant negative correlation with salinity and a significant positive correlation with nitrate (NO3-), nitrite (NO2-), chemical oxygen demand (CODcr) concentration and pH of river water. CH4 and N2O of river water were brought about mainly by methanogenesis and denitrification in river bottom sediment that diffused through sediment-water interface into the water body and then into atmosphere through the gas-water interface. The emission flux of CH4 and N2O at river gas-water interface reached 778±59.8 and 236±63.6 μmol.m-2.h-1, respectively in summer. The river net was a potential source of atmospheric CH4 and N2O because of eutrophication of the water body. | WANG DongQi CHEN ZhenLou SUN WeiWei HU BeiBei XU ShiYuan | 2009 | Science China Chemistry2009,52,5: | 19 |
| 7 | Laboratory pull-out tests on fully grouted rock bolts and cable bolts:Results and lessons learned显示文摘Laboratory pull-out tests were conducted on the following rock bolts and cable bolts:steel rebars,smooth steel bars,fiberglass reinforced polymer threaded bolts,flexible cable bolts,IR5/IN special cable bolts and Mini-cage cable bolts.The diameter of the tested bolts was between 16 mm and 26 mm.The bolts were grouted in a sandstone sample using resin or cement grouts.The tests were conducted under either constant radial stiffness or constant confining pressure boundary conditions applied on the outer surface of the rock sample.In most tests,the rate of displacement was about 0.02 mm/s.The tests were performed using a pull-out bench that allows testing a wide range of parameters.This paper provides an extensive database of laboratory pull-out test results and confirms the influence of the confining pressure and the embedment length on the pull-out response(rock bolts and cable bolts).It also highlights the sensitivity of the results to the operating conditions and to the behavior of the sample as a whole,which cannot be neglected when the test results are used to assess the bolt-grout or the grouterock interface. | Isabelle Thenevin Laura Blanco-Martín Faouzi Hadj-Hassen Jacques Schleifer Zbigniew Lubosik Aleksander Wrana | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017,9,5: | 14 |
| 8 | Designing solid-state interfaces on lithium-metal anodes: a review显示文摘Li-metal anodes are one of the most promising energy storage systems that can considerably exceed the current technology to meet the ever-increasing demand of power applications. The apparent cycling performances and dendrite challenges of Li-metal anodes are highly influenced by the interface layer on the Li-metal anode because the intrinsic high reactivity of metallic Li results in an inevitable solid-state interface layer between the Li-metal and electrolytes. In this review, we summarize the recent progress on the interfacial chemistry regarding the interactions between electrolytes and ion migration through dynamic interfaces. The critical factors that affect the interface formation for constructing a stable interface with a low resistance are reviewed. Moreover, we review emerging strategies for rationally designing multiple-structured solid-state electrolytes and their interfaces, including the interfacial properties within hybrid electrolytes and the solid electrolyte/electrode interface. Finally, we present scientific issues and perspectives associated with Li-metal anode interfaces toward a practical Li-metal battery. | Chen-Zi Zhao Hui Duan Jia-Qi Huang Juan Zhang Qiang Zhang Yu-Guo Guo Li-Jun Wan | 2019 | Science China Chemistry2019,62,10: | 14 |
| 9 | 断层模拟中FLAC模拟方法的对比研究显示文摘弱化法和Interface命令法是FLAC断层模拟中的两类基本方法,通过对两类方法的对比分析,认为两种方法均能达到断层模拟的目的,但断层弱化法能有效抑制网格变形,并保持断层两侧岩体的连续性,具有较好的模拟效果。 | 欧阳秀兰 占文锋 | 2006 | 北京工业职业技术学院学报2006,5,4: | 14 |
| 10 | SCATTERING FAR FIELD SOLUTION OF SH-WAVE BY MOVABLE RIGID CYLINDRICAL INTERFACE INCLUSION显示文摘The Green’s function is used to solve the scattering far field solution of SH-wave by a mov-able rigid cylindrical interface inclusion in a linear elastic body.First,a suitable Green’s function is devel-oped,which is the fundamental displacement solution of an elastic half space with a movable rigid half-cylin-drical inclusion impacted by out-of-plane harmonic line source loaded at any point of its horizontal surface.By using the Green’s function,a series of Fredholm integral equations of the first kind which determine thescattering far field can be set up.Then the paper gives the expressions on the far field including the displace-ment mode of scattering wave and the solution of scattering cross-section.Finally,some examples and nu-merical results are discussed to analyze the influence of the combination of different media parameters on theanswer of far field. | Yang Zailin Liu Diankui Shi Wenpu | 2002 | Acta Mechanica Solida Sinica2002,15,3: | 12 |
| 11 | 油溶性纳米铜的制备及其在SF15W/40汽油机油中的摩擦学性能(英文)显示文摘采用液相化学还原法结合界面生长法,以醋酸铜为母体,维生素C(Vc)为还原剂,聚乙二醇2000为修饰剂,正丁醇为生长剂,制得粒度分布为18.2~80.2nm、平均粒度为44.7nm的油溶性球形纳米Cu样品。XRD分析表明样品的晶格常数膨胀率为1.478%。将样品添加到SF15W/40汽油机油中制得金属纳米润滑油。高浓度激光粒度仪检测表明,该金属纳米润滑油具有优异的分散稳定性。在UMT-Ⅱ摩擦磨损试验机上考察SF15W/40汽油机油、金属纳米润滑油的摩擦磨损性能。结果表明:与SF15W/40汽油机油相比,金属纳米润滑油较大程度降低了摩擦系数,减小了磨损量,显著改善了SF15W/40汽油机油的摩擦性能;纳米Cu的最佳添加量为0.8%。 | 潘秋红 张锡凤 | 2010 | 稀有金属材料与工程2010,39,10: | 12 |
| 12 | 基于LabVIEWSIT的过程控制系统仿真显示文摘首先介绍了虚拟仪器软件LabVIEW及simulation interface toolkit(SIT),利用LabVIEW的可视化技术,直观、生动地模拟工业系统的运行状况,可以使仿真具有更好的效果.LabVIEWSIT可以快速地将LabVIEW与Matlab/Simulink结合进行系统的仿真.以一个二阶液位过程控制系统为例介绍了基于LabVIEW SIT的过程控制系统仿真的设计. | 向学军 刘平 杨盛 | 2006 | 三峡大学学报(自然科学版)2006,28,4: | 12 |
| 13 | Perspective on the critical role of interface for advanced batteries显示文摘As an efficient and environmental friendly energy storage system, lithium battery has been integrated into daily mobile life [1].Lithium batteries are becoming indispensable to all types of electronic products such as laptop computers, mobile phones, digital cameras [2]. A typical lithium battery consists of positive electrode(cathode), negative electrode(anode), electrolyte and other inactive materials(binder, conductive agent, separator) [3]. | Chong Yan Hong Yuan Ho Seok Park Jia-Qi Huang | 2020 | Journal of Energy Chemistry2020,29,8: | 12 |
| 14 | The Innovation of CNC Machine Interface Based on DNC System显示文摘This paper describes the innovation schemes of the interface of a CNC machinewhich cannot communicate with a computer by a Direct Numerical Control(DNC)interface andthe functions of a DNC interface system.One architecture of hardware and software of a practi-cal single-chip computer based on DNC interface system developed by the authors is given.Without any change of the original hardware and software,this DNC interface system has beenused to innovate the CNC machine’s interface to implement the direct communication between acomputer and a CNC machine and to achieve no tape transmission of a part program and ma-chine parameters.It has been demonstrated that this DNC interface system has certain practicalvalues in improving the reliability,efficiency and production management of CNC/NC machine. | Luo Jianjun Fan Liuqun Liang Gongqian China Research and Education Center of Plant Engineering,Northwestern Polytechnical University Xi’an,710072,P.R.China | 1997 | International Journal of Plant Engineering and Management1997,2,1: | 11 |
| 15 | Bioinspired Ultra-Low Adhesive Energy Interface for Continuous 3D Printing: Reducing Curing Induced Adhesion显示文摘Additive manufacturing based on liquid resin curing is one of the most promising methods to construct delicate structures.However,precision and speed are limited by the vertical adhesion of in situ cured resin at the curing interface.To overcome the unavoidable adhesion and to develop a general curing interface,we propose a slippery surface taking inspiration of the peristome surface of the pitcher plant.Such surface shows ultra-low adhesive energy at the curing interface due to the inhibition of the direct contact between the cured resin and the solid surface,which also increases the reflling speed of liquid resin.Tis ultra-low adhesive energy interface is efective for continuous 3D printing and provides insights into the physical mechanisms in reducing vertical solid-solid interfacial adhesion. | L.Wu ZDong H.Du CLi N.X.Fang Y.Song | 2018 | Research2018,,1: | 11 |
| 16 | HCWCI/Carbon Steel Bimetal Liner by Liquid-Liquid Compound Lost Foam Casting显示文摘Impact, friction and corrosion from the grinding balls and the grinding medium during the mineral processing result in liner breakage. Liner, made from Hadfield steel or alloyed steel, could not have served in wet grinding environment for more than ten months. Composite liner, made from HCWCI (high Cr white cast iron) and carbon steel, has been developed successfully with liquid-liquid composing process based on LFC (lost foam casting). The microstructure of composite was analyzed with optical microscope, SEM (scanning electron microscope)/EDX energy-dispersive X-ray and XRD (X-ray diffraction). According to micrograph, the combination region of two metals was staggered like dogtooth, no mixtures occurred between two liquid metals, and its interface presented excellent metallurgical bonding state. The results of mechanical property test show that, the hardness of HRC, the fracture toughness, and the bending strength are more than 61, 16.5 J/cm2 and 1 600 MPa, respectively. Comparison between liners made from bimetal composite and alloyed steel has also been investigated in industrial hematite ball mill. The results of eight months test in wet grinding environment prove that the service life of bimetal composite liner is three times as long as that of one made from alloyed steel. | XIAO Xiao-feng1,2, YE Sheng-ping2, YIN Wei-xin3, XUE Qiong4 (1. School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, Hubei, China 2. State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China 3. Wuhan Zhike Abrasive-Resistant Material Science and Technology Development Co Ltd, Wuhan 430073, Hubei, China 4. College of Science, Wuhan University of Technology, Wuhan 430079, Hubei, China) | 2012 | Journal of Iron and Steel Research(International)2012,19,10: | 11 |
| 17 | 地震条件下双排抗滑桩受力分析显示文摘采用FLAC-3D软件模拟桩土的动力作用,抗滑桩、挡土板采用线弹性模型,土体采用Mohr-Coulomb弹塑性模型。对于桩土界面采用无厚度接触面'interface单元'进行模拟。通过计算,得到了在0.15,0.20,0.40g地震力作用下桩的受力与加速度分布情况。 | 陶云辉 周勇波 王伟峰 | 2010 | 路基工程2010,,2: | 11 |
| 18 | Phase-field simulation for the evolution of solid/liquid interface front in directional solidification process显示文摘In this study, the phase field method was used to study the multi-controlling factors of dendrite growth in directional solidification. The effects of temperature gradient, propelling velocity, thermal disturbance and growth orientation angle on the growth morphology of the dendritic growth in the solid/liquid interface were discussed. It is found that the redistribution of solute leads to multilevel cavity and multilevel fusion to form multistage solute segregation, and the increase of temperature gradient and propelling velocity can accelerate the dendrite growth of directional solidification, and also make the second dendrites more developed, which reduces the primary distance and the solute segregation. When the temperature gradient is large, the solid-liquid interface will move forward in a flat interface mode,and the thermal disturbance does not affect the steady state behavior of the directionally solidified dendrite tip. It only promotes the generation and growth of the second dendrites and forms the asymmetric dendrite. Meanwhile, it is found that the inclined dendrite is at a disadvantage in the competitive growth compared to the normal dendrite, and generally it will disappear. When the inclination angle is large, the initial primary dendrite may be eliminated by its secondary or third dendrite. | Yuhong Zhao Bing Zhang Hua Hou Weipeng Chen Meng Wang | 2019 | Journal of Materials Science & Technology2019,35,6: | 10 |
| 19 | Adhesion at cerium doped metal-ceramic α-Fe/WC interface:A first-principles calculation显示文摘Electronic structure, stability and bonding strength of a-Fe/WC interfaces between Ce-doped and undoped WC cermet coating were investigated by first-principles methodology based on densityfunctional theory(DFT). Based on the minimum mismatched lattices, the relatively stable interface that forms between WC(100) and bcc a-Fe(100) was employed to predict the atomic structure, bonding,and ideal work of adhesion. There are three possible positions which were defined as OT, MT, HCP, taking into account both C-and W-terminations. The sequence of structural stability tested in this paper was:MT > OT > HCP. After full relaxation, the results show that only the first and second layers of the interface have significant influence on the electronic structure between Fe and WC. The interaction of Ce elements at the interface is achieved by comparing the interface structure and electronic structure of the doped and undoped interfaces. Ce doped interface possesses a shorter interface distance(d0 = 0.09776 nm)and a larger interface energy(Wad = 8.98 J/m2) than undoped interface(Wad = 8.76 J/m2,d0= 0.10134 nm).Charge density distribution and difference, and density of states were utilized to characterize the electronic properties and determine the interfacial bonding.The results demonstrate that strong covalent bonding existed in the undoped interface, while a mixed covalent/ionic bonding was formed at the Ce-doped interface. | Guiying Yang Yan Liu Zongqiu Hang Naiyuan Xi Hao Fu Hui Chen | 2019 | Journal of Rare Earths2019,37,7: | 10 |
| 20 | 盾构监控系统人机界面组态开发显示文摘为实现对盾构各系统集中监视、控制、数据存储、故障报警、界面多语言切换等功能,采用NET框架下C#自主开发的方式,开发出盾构上位机监控系统。首先简要介绍系统的开发环境和运行的软硬件环境,然后按软件部分系统逻辑分层顺序,分别从以下3个方面进行详细描述:1)底层负责与PLC通讯的OPC协议;2)自定义控件、组合显示界面、报警界面,曲线图界面及注浆界面的多语言切换;3)数据存储格式、海量数据的形象化统计分析。主要研究结论如下:1)系统经过中铁号百余台盾构的实际应用证明设计符合盾构监控要求,界面友好、稳定可靠;2)系统虽为盾构量身定做,但其人机界面软件部分包含了组态软件的大部分功能,进行功能扩展后可以移植到其他工业控制系统。 | 谭顺辉 孟祥波 徐受天 蒲晓波 | 2014 | 隧道建设2014,34,4: | 9 |