Search results

Recent years, some researchers shifted their interest to the actuator mode based on smart material.
The servomotor is the key part of the mass adjusting mechanism, which can drive a flat lead moving back and forth to change the center of gravity of the robofish.
Hu, Biological Inspiration: From Carangiform Fish to Multi-Joint Robotic Fish, Journal of Bionic Engineering, 7(2010) 35-48
Yang, Pattathil Anjan P. and Zhang Yonghua, “Initial Prototype Design and Investigation of an Undulating Body by SMA,” Proceedings of the IEEE International Conference on Automation Science and Engineering (CASE2006), Shanghai, China, Oct 2006, pp. 472-477
IMechE), Part I: Journal of Systems and Control Engineering, 221(3), 295-309, 2007

Palm Species on the Application of Landscape Garden in Hainan Yi ni Guo 1, a, Yan Zhang 2,b, Ye Huang 3,c 1The horticulture garden college of Hainan University，Danzhou,Hainan ,571737,China 2,3The Mechanical and Electrical Engineering College of Hainan University，Danzhou,Hainan ,571737,China ayvonneni@126.com, bz_yhs163@163.com, cHuangye_zhangjing@163.com Corresponding author: Zhang Yan (1978.10), female, Hubei Ezhou, Master, Lecturer, Mechanical and Electrical Engineering University of Hainan.
Most palm species has a certain resistance to negative, the plant small, form chic, leaf form leaf color are has certain ornamental value, is used for indoor afforest best plant material.
Hainan university often in palm species for fundamental key tree species, and create a unique austral amorous feelings, outstanding tropical landscape features.
Clear fundamental key tree species, reflect local characteristics.
Author : GuoYi ni (1990.12-),female, tianjin, undergraduate, Address: Hainan University Danzhou Campus Mechanical and Electrical Engineering, Code: 571737.

Traditional testing usually last long ,waste both labors and material resources greatly from setting a test paper, pressing it ,preparing the examination room, students' identification ,monitoring examination ,to evaluating the paper and giving scores.
During the analyzing process of manual evaluation, we can find, teachers always set a standard of evaluation , divide a question to different parts ,distribute score to certain key points which is the so-called scoring points ,then giving a score comprehensively according to how much the answer is approximate to the scoring point as well as whether the sentence if fluent and reasonable.
Computer Engineering and Applications,2004:P.132-135(In Chinese) [2] Peng Zu Zeng,Sun Yun Yu.
The application level of distributed computer test system design and implementation. computer engineering and design . 2003:P52-54(In Chinese) [5] Zhang Sen,Wei Ming.

Key Laboratory of Ethnic Medicine Resource Chemistry，State Ethnic Affairs Commission & Ministry of Education，Yunnan University of Nationalities, Kunming 650031, PR China 2.
College of Chemistry and Material Engineering, Yunnan University, Kunming 650092, PR China 3.
College of Chemistry and Molecule Engineering, Peking University, Beijing100871, PR China aemail:zhaojishou@163.com, bemail:yanli5901@126.com, c email: hkwn2005@163.com Keywords: Platinum group metals; Pressure cyanidation; dissolution; Palladium; rotating disk Abstracts: At room temperature and pressures, the reaction between sodium cyanide and platinum group metals (PGMs) does not occur because of poor kinetics.

Evolution Characteristics of Primary Phase in A356 Al Alloy during Isothermal Holding in Solid-liquid Phase Region Zheng Liu1,a , Kai Cao2,b, Hong-biao Xu2,c,Mei-yan Huang2,d 1 Faculty of Mechanical and Electronic Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P R China 2 Faculty of material science and engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P R China a liukk66@163.com, b gacaok@yahoo.com.cn, c nightnice@163.com, d hmybing@163.com Keywords: A356 alloy, semisolid, morphology of primary phase, evolution Abstract.
The foundation and key of semisolid forming technique are preparation of semisolid alloy slurry, in which the original structure in the slurry containing uniform and fine spherical non-dendritic is required.

Dynamic Simulation Analysis for Docking Mechanism of On-orbit-servicing Satellite Zhang Yuan1,a *, Wang Jian1,b, Song Yan1,c, Sun Lili1,d 1Mechanical and Power Engineering College, Harbin University of Science and Technology, Harbin, Heilongjiang, China azhangyuan1966@163.com, b hustwangjian@163.com Keywords: On-orbit-servicing; Contact-impact; Docking mechanism; Adams simulation Abstract: The new type of three jaw docking mechanism is designed for use in orbiting spacecraft, the mathematical model is given and its working characteristics are analyzed.
Using Hertz contact force model which is established on the basis of elasticity theory to calculate the contact force[8], energy consumption is regarded as caused by material damping in the process of contact, although this method is an approximate analysis method, it is easy and convenient to use.
[6] Zhao Mingjun, Key technical study of ground six degrees of freedom platform for microsatellite docking mechanism, Harbin, Chinese, 2011
[9] DAI Ming-jun, CHEN Zhi-gang, Numerical Simulation Of Docking Dynamics Of A Docking Simulating Test Facility, ENGINEERING MECHANICS. 23(2006)54-59

Facing to the System Structure of the Controller CNC of Open-structure Motion Naichang Dai1, a 1 Department of Automobile & Mechianical/Electrcmic Engineering, Zhejiang Industry &Trade Polytechnic, Wenzhou 325003, China adaiaaa@126.com Keywords: open type structure controller; multi-mission parallel processing mechanism; program design Abstract.
Fig 1 The relationship between the background program and the interrupt program 2 Key technology 2.1 Multi-mission parallel processing mechanism This CNC system have many coordination functions for multitask real-time control, using multiple real-time interrupt methods to realize the multi-mission parallel processing mechanism. 2.1.1 Multi-mission operation The attention of the multi-mission operation includes two tasks, that are management and control.
The practical physical system is made up of many element entities such as the material, the part, the product, the cutting machine and so on, and the information system is made up of the information, the information processing, the dicision-making activity and so on.
[7] Yanjun Qe, Aibin Guo, A System for Transmitting CNC Files Based on Multi-thread in Windows, J, Electro-Mechanical Engineering, 2003,19(1):47-51

Shear Behavior of CFRP Prestressed Concrete Beams without Stirrups Zuohu Wang1,a, Xiuli Du2, b and Jingbo Liu1,c 1 Department of Civil Engineering, Tsinghua University, Beijing 100084, China 2 The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China awangzuohu@emails.bjut.edu.cn, bduxiuli@bjut.edu.cn, cliujb@tsinghua.edu.cn Keywords: Carbon fiber; Fiber reinforced plastics; Prestressed; Concrete beams; Shear behavior Abstract.
Due to the relatively low modulus of elasticity of FRP composite material, concrete members prestressed with FRP tendons would develop wider and deeper cracks than members prestressed with steel.

The idea of regional water resources digital management is based on the current situation of water resources management, combines management skills and digital technology, depends on information technology, computers and network as the material foundation and views the modern management decision-making technology as the core.
At the same time, specialized agencies should be responsible for collection, compilation, processing and dissemination of water resources data. 2 The Model Construction of Regional Water Resources Digital Management System The model of regional water resources digital management system includes regional water resources information collection, processing and transmission networks, database systems, modular integrated business management systems and so on. 2.1 Building regional water resources information's collection, processing and transmission network The information collection and transmission network relies on the water resources engineering network which is developing, based on the province-to-municipal information backbone network of water resources departments and the network of province's government office system, extending to the county-level departments and large and medium-sized projects.
Meantime, the network may plan the water resources information collection points of regional water resources engineering facilities, and transmit data through the public network, satellite and other wireless transmission means.
The government departments should give priority to developing information systems for the key activities that are useful to improve management efficiency.

Xu Provincial Key Research Laboratory for Stone Machining, Huaqiao University Quanzhou, Fujian, 362011, China Keywords: Sawing, Temperature, Modeling, Oblique plane heat source, Blade segment ratio Abstract.
As the workpiece passes under the rotating saw blade, a layer of material is removed from the workpiece surface.
Cai: Journal of Manufacturing Science and Engineering Vol. 123 (2001), p. 185 Journal Title and Volume Number (to be inserted by the publisher) 495 [2] W.M.
Xu: Diamond & Abrasives Engineering No. 2 (2002), p. 45 (in Chinese)