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Quantum Confinement in GaAs Microcrystallites embedded in SiO_(2) Thin Film

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Chinese Physics Letters 1996年第10期13卷 797-800页

作者： SHI Wang-zhou LIN Kui-xun LIN Xuan-ying QI Zhen-zhong Institute of Material Science Shantou UniversityShantou 515063 Centre of Information Storage Shanghai Jiaotong UniversityShanghai 200030

Semiconductor GaAs microcrystallites were embedded in SiO_(2) thin films by magnetron rf cosputtering *** of the thin films were characterized by transmission electron microscopy,x-ray diffraction and x-ray photoelectron *** size of microcrystallites,depending on the substrate temperature during deposition,is *** spectra of the films were *** shift of absorption edge was observed and discussed according to quantum confinement effect.

关键词： technique. Quantum embedded

Preparation, characterization, and adsorption-photocatalytic activity of nano TiO_2 embedded in diatomite synthesis materials

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Rare Metals 2017年第12期36卷 987-991页

作者： Ya-Li Zhang Jing Yang Xian-Jin Yu School of Chemical-Engineering Shandong University of Technology Zibo 255049 China

Nano TiOembedded in diatomite(NTED)synthesis materials were prepared by a sol-gel method in absolute ethyl alcohol suspension. NTED synthesis materials have a higher specific surface area and larger pore volume using micromeritics ASAP 2020. The result of characterization was measured by X-ray diffraction(XRD),Fourier transform infrared(FT-IR) spectroscopy, scanning electron microscope(SEM), and energy dispersive spectroscopy(EDS). The cyanide wastewater was employed to evaluate the adsorption capacity and photocatalytic activity of prepared NTED synthesis materials. The better photocatalytic activity and adsorption capacity of NTED synthesis materials are attributed to their high surface area and higher UV absorption intensity for the cyanide wastewater.

关键词： Nano TiO_2 Diatomite(NTED) embedded Adsorption Photocatalysis

Simple analytic embedded atom potentials for HCP metals

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中国有色金属学会会刊：英文版 1999年第3期9卷 586-592页

作者： Ouyang Yifang(欧阳义芳) Zhang Bangwei(张邦维) Liao Shuzhi(廖树帜) Jin Zhanpeng(金展鹏) Guangxi Univ Dept Phys Nanning 530004 Peoples R China

A new simple analytic embedded atom model including a modified term, which has previously been successfully applied to the atoms in the FCC and BCC crystal systems, is now extended to the HCP structure. The model parameters are determined for HCP transition metals Co, Hf, Re, Ru, Sc, Ti, Y and Zr with ideal c/a ratios. The model is fitted to the lattice constants, cohesive energy, vacancy formation energy, elastic constants and is able to reproduce the experimental data quite well. The structure stability of real HCP, BCC and simple cubic is discussed, the formation energy of divacancy in the base plane and in different planes are also calculated, and the divacancy is found to be not bound.

关键词： embedded atom method vacancies formation energy structural stability

embedded BCI Rehabilitation System for Stroke

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Journal of Beijing Institute of Technology 2019年第1期28卷 35-41页

作者： Wanzeng Kong Siman Fu Bin Deng Hong Zeng Jianhai Zhang Shijie Guo School of Computer Science and Technology Hangzhou Dianzi University Fujian Key Laboratory of Rehabilitation Technology(Fuzhou)

In stroke rehabilitation,rehabilitation equipments can help with the *** traditional equipments are not convenient to carry,which limits patients to use related rehabilitation *** solve this kind of problem,a new embedded rehabilitation system based on brain computer interface(BCI)is proposed in this *** system is based on motor imagery(MI)therapy,in which electroencephalogram(EEG)is evoked by grasping motor imageries of left and right hands,then collected by a wearable *** EEG is transmitted to a Raspberry Pie processing unit through Bluetooth and decoded as the instructions to control the equipment *** experience the limb movement through the visual feedback so as to achieve active rehabilitation.A pilot study shows that the user can control the movement of the rehabilitation equipment through his mind,and the equipment is convenient to *** study provides a new way to stroke rehabilitation.

关键词： stroke rehabilitation embedded brain computer interface(BCI) motor imagery(MI)

FORMATION ENTHALPIES FOR FCC METAL BASED BINARY ALLOYS BY embedded ATOM METHOD

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中国有色金属学会会刊：英文版 1998年第1期8卷 61-64页

作者： Yifang, Ouyang Bangwei, Zhang Shuzhi, Liao Zhanpeng, Jin Hongmei, Chen Guangxi Univ Nanning China

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关键词： formation enthalpy binary alloy embedded atom method

Development of embedded-atom potentials and prediction of properties for binary Ti-V

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中国有色金属学会会刊：英文版 2000年第5期10卷 635-638页

作者：商顺利刘玉芹白克武沈剑韵王希哲 Gen Res Inst NonFerrous Met Beijing 100088 Peoples R China

The embedded atom potentials for binary Ti V were developed and used to predict the mechanical properties of binary Ti V solid solutions with hcp and bcc structures including lattice parameters, elastic constants and fracture toughness for Mode Ⅰ fracture under plane strain. The calculation results show that with the increment of V content, the lattice parameters and elastic constants decrease but the fracture toughness increases for hcp solid solutions, the lattice parameters decrease but the elastic constants and fracture toughness increase for bcc solid solutions. The calculation results agree well with the available experiment values. [

关键词： embedded atom potentials Ti V system lattice parameters elastic constants fracture toughness

An 8-b 300MS/s folding and interpolating ADC for embedded applications

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Journal of Semiconductors 2010年第6期31卷 151-156页

作者：陆焱林俪夏杰峰叶凡任俊彦 State Key Laboratory of ASIC & System

A 1,4-V 8-bit 300-MS/s folding and interpolating analog-to-digital converter（ADC） is *** in the 0.13-μm CMOS process and occupying only 0.6-mm^2 active area,the ADC is especially suitable for embedded *** system is optimized for a low-power *** sampling switches help to cut down the extra power needed for complete *** averaging resistor array is placed between two folding stages for power-saving *** converter achieves 43.4-dB signal-to-noise and distortion ratio and 53.3-dB spurious-free dynamic range at 1-MHz input and 42.1-dB and 49.5-dB for Nyquist *** results show a power dissipation of 34 mW and a figure of merit of 1.14 pJ/convstep at 250-MHz sampling rate at 1.4-V supply.

关键词： analog-to-digital convertor low-power low-voltage embedded folding and interpolating

Influence of the embedded structure on the EFP formation of compact terminal sensitive projectile

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Defence Technology（防务技术） 2017年第4期13卷 310-315页

作者： Bo-yang Xing Rong-zhong Liu Rui Guo Liang Chen Hao Zhou Yong-liang Yang Lei Liu School of Mechanical Engineering Nanjing University of Science and Technology Faculty of Engineering University of Nottingham Department of Mechanical Engineering Eindhoven University of Technology

To improve the damage efficiency of compact terminal sensitive projectile with EFP warhead,it is vital to understand how the embedded structure(ES)affects the EFP forming *** this paper,the corresponding numerical investigation is focused on,in which the fluid-structure interaction(FSI)method and the experimental verification are *** on the obtained quantitative relations between the forming performance and a(the ratio of height to maximum radius of ES),an optimal design is further *** results indicate that:when the embedded structural length and width range 0.1e0.3D and 0.1e0.2D(D:diameter of EFP warhead)at a fixed volume,respectively,EFP forming velocity nearly keeps as a constant,1760 m/s;the height of ES has a dramatical effect on the propagating range of detonation wave,resulting in significant influence on the aerodynamic shape and length-to-diameter ratio of EFP;under the given constraints,the EFP length-diameter ratio can reach the optimal value2.76,when the height of ES is 0.22D.

关键词： Terminal sensitive projectile embedded structure Detonation wave EFP formation

embedded Scenario Clustering for Wind and Photovoltaic Power,and Load Based on Multi-head Self-attention

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Protection and Control of Modern Power Systems 2024年第1期9卷 122-132页

作者： Lijun Liu Xin Hu Junsheng Chen Ruixing Wu Feixiong Chen School of Electrical Engineering and Automation Fuzhou UniversityFuzhou 350108China State Grid Fuzhou Power Supply Company Fujian Smart Electrical Engineering Technology Research Center

The source and load uncertainties arising from increased applications of renewable energy sources such as wind and photovoltaic energy in the power system have had adverse effects on optimal planning and *** for generating typical renewable energy and load scenarios are constructed to reduce such effects and improve the applicability of a planning and optimal dispatching model of power systems with a high proportion of renewable *** traditional clustering-based model for representing such scenarios cannot handle high-dimensional time-series data and consequently the feature-related information obtained cannot fully reflect the characteristics of the ***,a deep convolutional embedded clustering model based on multi-head self-attention is ***,a variational mode decomposition model is optimized to reduce the influence of noise-related signals on the feature *** deep features are then extracted from the data using an improved convolutional autoencoder,and the appropriate number of clusters is determined using the elbow *** this,the network parameters are optimized based on the sum of losses during reconstruction and ***,typical scenarios are then generated based on the optimized network ***,the proposed method is evaluated based on data visualization and evaluation *** is shown that the quality of features and the accuracy of clustering can be effectively improved by the proposed scenario generation method.

关键词： handle embedded network