System Design for Leather Cavity XCT     

ZHANG Ping  JIANG Yang 《保鲜与加工》2001,(2):53-56

This paper introduces a method of solving the problem of leather cavity measurement in shoe CAD/CAM by industrial CT technology. Concentrating on peculiarity and requirement of leather cavity measurement, this paper presents a X-ray industrial CT system scheme, which not only satisfy the requirement of leather cavity measurement but also can achieve general industrial CT. measurement. The achievement on data collection system and motion control of stepping motor is emphasized.  相似文献   

Analysis on Knowledge Sharing Under the Incomplete Information Condition     

ZHAO Hua~ 《保鲜与加工》2006,(4):133-136

Knowledge sharing is the important way in which enterprises create organizational knowledge and obtain competition advantage.Scholars always have difference viewpoints about the motivators in knowledge sharing.This paper(analyzes) the incomplete information game and the choice of the motivators in knowledge sharing.If the knowledge(acceptant) offers motivators to the knowledge owner,knowledge sharing might make the participants obtain knowledge-sharing incomes.If knowledge-sharing incomes can make up the participants' costs,knowledge sharing can be caught through.Because the information of knowledge's value is incomplete,enterprises need knowledge managers and organizational additional motivators promote knowledge sharing.  相似文献   

Experiment of Two-phase Flow Patterns and Analysis of Flow Map During Condesation inside Horizontal Two Dimensional Internal Microfin Tubes     

Du Yang  Xin Mingdao 《保鲜与加工》1996,(2):41-47

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Vibration Analysis and System Simulation for a Stalled Wind Turbine     

HE Jing  HE Yu-lin  JIN Xin  LIU Hua 《保鲜与加工》2007,(5):91-95

The aerodynamic characteristic of wind turbine is calculated by applying the Blade Element Momentum(BEM) theory.Also finite element mode analysis is done for the tower and the rotor.Then the multi-dynamic model of the wind turbine is built in Adams.Also the drive chain is calculated by applying state space method and programmed in Matlab/ Simulink.With that the combined simulation of vibration characteristics is carried out on the base of MATLAB/Simulink and ADAMS,in which the transmission effects and aero-elasticity coupling is fully considered.The results show that the method is able to simulate the vibration characteristic almost the same as software Bladed,which is well-known for analyzing performance and loads for the design and certification of wind turbines.  相似文献   

白血病抑制因子（LIF）及其受体在月经 周期猕猴卵巢内的表达     

岳占碰  李世杰  张学明  韩春田  郭斌  王洪斌  杨增明 《中国农学通报》2006,22(2):14-14

应用免疫细胞化学方法对白血病抑制因子（leukemia inhibitory factor, LIF）、白血病抑制因子受体（leukemia inhibitory factor receptor, LIFR）和gp130在月经周期猕猴卵巢内的表达进行了研究。结果表明：LIF、LIFR和gp130在猕猴卵巢内的表达量随月经周期的不同而变化，LIF及其受体在增殖期卵巢内的表达量高于分泌期的卵巢。LIF及其受体在原始卵泡、腔前卵泡和有腔卵泡的卵细胞内表达量均较高，在颗粒细胞、卵泡膜、卵巢生殖上皮和卵巢基质中有少量表达，而在闭锁卵泡、退化的黄体和卵巢髓质中未见表达。LIF及其受体在猕猴卵巢内的表达可能受卵巢分泌的类固醇激素所调控，LIF可能通过自分泌或旁分泌的方式在猕猴卵泡发育及排卵等过程中起重要作用。  相似文献   

The Application of 8098 Single Chip Microcomputer in an OpticaI Fibre Pred uction Line     

Cao ChangXiu  Yang Yinglin 《保鲜与加工》1994,(4):79-84

A winding and rowing microcomputer controller is proposed to be applied in an optical fibre preduction line. This controller consists of 8 09 8 single chip microcomputer.With trac-ing the linear velocity of d rivin g m otor,m edulating optical fibre tension with PLD and calculating layers of optical fibre. The controller automatically medulates the speed of winding and rowin8 step motors.  相似文献   

Research of the Coefficient of Wind-induced Vibration About Complicated Tall Buildings     

ZHANG Liang-liang  LUO Sheng  YU Yang  WU Yun-fang  LIN Guan-ming  LIN Rong-sheng 《保鲜与加工》2006,(5):96-98

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New Algorithms for Data Discretization Based on Rough Set Theory     

ZHAO Jun  WANG Guo_yin  WU Zhong_fu  LI Hua 《保鲜与加工》2002,(3):18-21

The discretization of real values is always one of the key problems to be solved in the domain of machine learning for its great contribution to speeding up the followed learning algorithms, cutting down the real demand of algorithms on running space and time, and improving the clustering capability of the ultimate learning results. The basic characteristics and framework of discretization approaches based on rough set model are analyzed at first, then the different measurements of the importance of candidate cuts are discussed and researched. Two new heuristic algorithms are put forward to finally select the useful cuts from a candidate set. The selected cuts of the two algorithms will adequately maintain the discernible relation of information systems for their full considering the specialty of rough set, which perfectly embodies the advantages of this theory. Moreover, excellent discretization results may be expected through these heuristic algorithms.  相似文献   

Simulation Investigation for the Regulating Characteristics of Real and Reactive Power of Asynchronized Turbogenerators     

Ling Zhixians  Yang Shunchang  Qing Yihong  Xu Guoyu 《保鲜与加工》1994,(6):36-42

This paper discuas the controlling principle of asynchronized turbogenerators,deduces their mathematical model,and studies their regulating characteristics of real and reactive power(or voltage)by means of simulation calculation of operating characteristics for a 200MW asychronlzed turbogenerator.The conclusion is that the asychronlzed tubogenerators not only can regulate real and reactive power independently but also has an excellent dynamic performance.  相似文献   

A Study on the FMS Planning and Scheduling System     

Hu Lide Yang Dan Wang Shilong 《保鲜与加工》1993,(6):58-64

After researching the function requirements of the planning and scheduling in manufacturing cells, the paper advanced a control structure with three phases, i. e. planning , scheduling and dispatching. The paper represented in detail the main purposes, requirements and scheduling actions in each phase. It suits to general machining FMSs.  相似文献