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新型三维立体远程交互系统端口机设计及实现方案
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作者 刘自鸿 高志 《仪器仪表学报》 EI CAS CSCD 北大核心 2003年第z1期566-570,共5页
本文提出了一种新型三维立体远程智能交互系统的概念 ,并对该新型系统端口机的设计 ,以及系统本身的实现原理提出了两种不同的方案。该系统彻底改变了现有远程交流 A B的单一对称模式 ,在二维可视电话的基础上增进了动作信息反馈来实... 本文提出了一种新型三维立体远程智能交互系统的概念 ,并对该新型系统端口机的设计 ,以及系统本身的实现原理提出了两种不同的方案。该系统彻底改变了现有远程交流 A B的单一对称模式 ,在二维可视电话的基础上增进了动作信息反馈来实现三维实境交流。系统及用户端口机是在可视电话 ,电脑网络 ,光电通信 ,机器人 ,人工智能等技术的基础上实现的。第一方案利用了分布式压力传感器 ,电脑算法等 。 展开更多
关键词 智能网络 三维立体 压力传感器 行为子系统 CP控制 虚拟传感器 伺服机构 电致伸缩材料
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Molecular Simulations of Adsorption and Diffusion Behaviors of Benzene Molecules in NaY Zeolite 被引量:5
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作者 张舟 刘辉 +3 位作者 朱吉钦 陈标华 田辉平 贺振富 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2009年第4期618-624,共7页
In the article the Grand Canonical Monte Carlo (GCMC), molecular dynamics(MD), and kinetic Monte Carlo (KMC) simulations with particular focus on ascertaining the loading dependence of benzene diffusion in the z... In the article the Grand Canonical Monte Carlo (GCMC), molecular dynamics(MD), and kinetic Monte Carlo (KMC) simulations with particular focus on ascertaining the loading dependence of benzene diffusion in the zeolite were performed. First, a realistic representation of the structure of the sorbate-sorbent system was obtained based on GCMC simulation. The simulation clearly shows the characteristics of the adsorption sites of the benzene-NaY system, from which two kinds of preferably adsorbing sites for benzene molecules, called SⅡ and W sites, are identified. The structure thus obtained was then used as a basis for KMC and MD simulations. A compara-tive study by introducing and comparing two different mechanisms underlying jump diffusion in the zeolite of in-terest shows that the.MS diffusivity values predicted by the KMC and MD methods are fairly close to each other,leading to the conclusion that for benzene diffusion in NaY, the SⅡ→W→SⅡ jumps of benzene molecules are dominated,while the W→Wjumps do not exist in the process. These findings provide further support to our previous conclusion about the absence of the W→W jumps in the process of benzene diffusion in NaY. Finally, to relations, for predicting the self-and MS difthsivities were derived and found to be in fair agreement with the KMC and MD simulations. 展开更多
关键词 BENZENE ADSORPTION DIFFUSION NAY Grand Canonical Monte Carlo kinetic Monte Carlo
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Oscillatory Behavior of In-medium Interparticle Potential in Hot Gauge System with Scalar Bound States
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作者 LIU Hui HOU De-Fu LI Jia-Rong 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第6期1107-1112,共6页
We investigate the in-medium interparticle potential of hot gauge system with bound states by employing the QED and scalar QED coupling. At the finite temperature an oscillatory behavior of the potential has been foun... We investigate the in-medium interparticle potential of hot gauge system with bound states by employing the QED and scalar QED coupling. At the finite temperature an oscillatory behavior of the potential has been found as well as its variation in terms of different free parameters. We expect the competition among the parameters will lead to an appropriate interparticle potential, which could be extended to discuss the fluid properties of QGP with scalar bound states. 展开更多
关键词 quark-gluon plasma finite temperature field theory oscillatory potential
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Gelling Behavior of Plant Proteins and Polysaccharides in Food Systems
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作者 Florence O. Uruakpa 《Journal of Food Science and Engineering》 2012年第5期247-256,共10页
Biological macromolecules, such as proteins and polysaccharides, are widely used in food systems because their interactions impart a desirable texture to food products. Plant proteins interact with food components via... Biological macromolecules, such as proteins and polysaccharides, are widely used in food systems because their interactions impart a desirable texture to food products. Plant proteins interact with food components via protein-protein and protein-polysaccharide associations, and the formation of a matrix, which can entrap other food components such as water, lipids and flavors. These networks provide structural integrity to food products and can serve as important functional ingredients in processed foods. Intermolecular interactions of typical polysaccharides result either in simple associations or in the form of a double or triple helix. The linear double helical segments may then interact to form a super junction and a three-dimensional gel network. The formation of these structural networks takes place during processing and involves the transformation from a liquid or viscous sol into a solid material with elastic properties. Interests in the behavior of mixed gels center on the prospects of enhanced flexibility in their mechanical and structural properties compared to those of pure gels. Findings on molecular interactions between plant proteins (e.g., soy, canola and pea proteins) and polysaccharides (e.g., guar gum, carrageenan, and pectin) allow for the modification of physical and textural characteristics of mixed biopolymers to meet desired functional property. 展开更多
关键词 Molecular interactions plant proteins and polysaccharides gelling macromolecules.
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产业投资支持系统的实施路径研究
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作者 叶菲 张澜 周贵川 《今日财富(中国知识产权)》 2019年第2期61-61,共1页
新常态下,中国经济发展现面临经济增长可持续性的挑战。产业投资作为激发经济增长活力的'新引擎',在实施的过程中仍存在不少障碍,需要发挥产业投资支持系统的支持功能。文章基于产业投资支持系统各个要素的支持功能及其运行效果... 新常态下,中国经济发展现面临经济增长可持续性的挑战。产业投资作为激发经济增长活力的'新引擎',在实施的过程中仍存在不少障碍,需要发挥产业投资支持系统的支持功能。文章基于产业投资支持系统各个要素的支持功能及其运行效果,提出从产业投资的四个子系统来构建产业投资支持系统的实施路径。 展开更多
关键词 支持系统 行为子系统
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Analysis of 1/2 sub-harmonic resonance in a maneuvering rotor system 被引量:11
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作者 HOU Lei CHEN YuShu 《Science China(Technological Sciences)》 SCIE EI CAS 2014年第1期203-209,共7页
This paper focuses on the 1/2 sub-harmonic resonance of an aircraft’s rotor system under hovering flight that can be modeled as a maneuver load G in the equations of motion.The effect on the rotor system is analyzed ... This paper focuses on the 1/2 sub-harmonic resonance of an aircraft’s rotor system under hovering flight that can be modeled as a maneuver load G in the equations of motion.The effect on the rotor system is analyzed by using theoretical methods.It is shown that the sub-harmonic resonance may occur due to maneuvering flight conditions.The larger the eccentricity E and the maneuver load G,the greater the sub-harmonic resonance.The effects of nonlinear stiffness,damping of the system,maneuver load,and eccentricity on the sub-harmonic resonance region in parameter planes are also investigated.Bifurcation diagrams of the analytical solutions are in good agreement with that of the numerical simulation solutions.These results will contribute to the understanding of the nonlinear dynamic behaviors of maneuvering rotor systems. 展开更多
关键词 sub-harmonic resonance maneuvering rotor system hovering flight maneuver load
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Recent advances in self-propelled particles 被引量:1
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作者 Qi Pan Yan He 《Science China Chemistry》 SCIE EI CAS CSCD 2017年第10期1293-1304,共12页
"Active" components can be introduced into a passive system to completely change its physical behavior from its typical behavior at thermodynamic equilibrium. To reveal the interaction mechanisms between ind... "Active" components can be introduced into a passive system to completely change its physical behavior from its typical behavior at thermodynamic equilibrium. To reveal the interaction mechanisms between individuals, researchers have designed unique self-propelled particles to mimic the collective behavior of biological systems. This review focuses on recent theoretical and experimental advances in the study of self-propelled particle systems and their individual and collective behaviors. The potential applications of active particles in chemical, biological and environmental sensing and single particle imaging are discussed. 展开更多
关键词 self-propelled particles micromotors collective behavior single particle tracking
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