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⊙第11篇⊙

功率键合图法在血液循环系统计算机仿真中的应用
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注意:本论文已在《生物医学工程学》杂志1999第1期发表
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冯宇军     田树军
(大连理工大学 机械系,辽宁 大连   116024

 摘要:根据生物流体系统同工程流体系统所具有的相似性,将功率键合图建模方法应用于人体血液循环系统的计算机仿真当中,对一个简化的人体血液循环系统模型进行了仿真研究,所得仿真数据同基本的生理规律符合较好。为生理医学仿真提供了一种易于理解和统一的建模方法。
关键词:功率键合图法 计算机仿真 血液循环系统

Use of power band graph method in the computer simulation of blood circulation system

FENG Yu-junTIAN Shu-jun

 ( Dep. of Mech. Eng.Dalian Univ. of Technol.Dalian 116024P.R.China)

Abstract The power band graph (PBG) method is a convenient system dynamic modeling method, which is used successfully in fluid system dynamic character simulation. As there are many similarities to a great extent between biological fluid system and engineering fluid system, according to fluid dynamic theory, this paper use the PBG approach in the computer simulation of human blood circulation systemand complete a modeling and simulation study on a simplified human blood circulation system model. The results of the simulation are in good agreement with the basic physiological law. The study provides a simple and unitary simulation modeling method for physiologic medical simulation.
Key words: Power Band Graph Method , Computer Simulation  , Blood Circulation System


⊙第12篇⊙

功率键合图方法在多分支血液循环系统建模和仿真中的应用研究
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 注意:本论文已在《生物医学工程学》杂志,2000第6期,181页发表
使用者请注明论文出处

冯宇军1 田树军2 林海龙3

1. 大连理工大学 管理学院,辽宁 大连 116024

2. 大连理工大学 机械系,辽宁 大连 116024

3. 大连市中心医院,辽宁 大连 116033

 

摘要:应用功率键合图方法,建立了一种多分支血液循环系统的计算机仿真模型,即描述血液循环系统内血流动力学变量变化规律的状态方程。该仿真模型较为细致地刻画了血液循环系统的生理特性,形成了较完整的人体血液循环系统的计算机模型,此模型可模拟血液循环系统的生理和病理特性,得出相应的心血管动力学仿真数据和波形,为进行血液循环系统生理和病理的医学研究提供了新的研究手段。
关键词:血液循环系统 计算机仿真 功率键合图法
分类号:
TH 1371

Study of Modeling and Simulation of the Multi-branch Blood System

FENG Yu-jun1 , TIAN Shu-jun2 , LIN Hai-long3

                    1. School of Manage., Dalian Univ. of Technol., Dalian 116024, P. R. China;
                   2. Dep. of Mech. Eng., Dalian Univ. of Technol. Dalian 116024, P. R. China;
                   3. Dalian Cent. Hosp., Dalian 116033, P. R. China 

Abstract : By the Power Band Graph (PBG) method, a computer simulation model of the multi-branch blood circulation system is presented, which describes the blood fluid dynamic law in the blood system by the state equation. a minute description is gived by the modelon physiological characters of blood circulation system (BCS). An integrated computer model on BCS has been established. The model can simulate physiological characters of blood circulation system, and get the simulation data and curves of BCS hemodynamics varibles.  the model can be used widely in the field of physiological system simulation study, the medical study and medical aid education.
Key words
: Blood Circulation System ,  Computer Simulation  , Power Band Graph Method


⊙第13篇⊙

面向快速原型制造的逆求技术
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注意:本论文已在《机械制造》杂志(2000,38(428):11-13)发表
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孙玉文
大连理工大学
机械系,辽宁 大连116024)   

 

   逆求技术是一种应用非常广泛的新兴技术,在快速原型制造中具有重要作用。本文介绍了面向快速原型制造的逆求工程系统的结构体系、测量方法以及相应的数据处理手段,并指出了存在的问题和今后的发展方向。
关键词
 逆求工程  快速原型制造 测量 数据处理

Reverse Engineering RPM-oriented

 Sun Yuwen
Dalian University of  Technology  Dalian , P. R. China(116024)   

AbstractReverse engineeringa newly developed and widely used techniquehas important application in rapid prototyping manufacturingThis paper discusses chiefly its structure systemmeasure methods and data processing techniquesAlsoin this paperpractical problems and future development trends of reverse engineering are mentioned
Key words
reverse engineering  RPM  measure  data processing

 


⊙第14篇⊙

The zero curvature representation for hierarchies of nonlinear evolution equations
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注意:本论文已在《Physics Letters A》杂志2000年第274期135-142页发表
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(SCI收录本文)

范恩贵
(复旦大学 数学研究所,上海   200433

摘要:直接由谱问题出发并利用泛函梯度,我们给出非线性方程族零曲率表示的一种简单方法。

The zero curvature representation for hierarchies of nonlinear evolution equations

Engui Fan
 Physics Letters A 274 2000 135–142

Institute of Mathematics, Fudan Uniíersity, Shanghai 200433, PR China

Received 13 July 2000; received in revised form 1 August 2000; accepted 16 August 2000

Communicated by A.R. Bishop

Abstract:. Directly starting from the spectral problem c s U u, l cand with help of functional gradient, a simple method is x proposed for constructing zero curvature representation of the hierarchies of nonlinear evolution equations. q2000 Elsevier Science B.V. All rights reserved.
Keywords:
Nonlinear evolution equation; Zero curvature representation; Lenard operator pairs


⊙第15篇⊙

Two new applications of the homogeneous balance method
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注意:本论文已在《Physics Letters A》杂志2000年第277期212-218页发表
使用者请注明论文出处
(SCI收录本文)
范恩贵
(复旦大学 数学研究所,上海   200433

摘要:我们给出齐次平衡法两个新的应用,寻找非线性方程的Backlund变换和相似解,其结果与CK方法、WTC方法的结果一致。

Two new applications of the homogeneous balance method

Engui Fan )
 Physics Letters A 265 2000 353–357

Institute of Mathematics, Fudan Uniíersity, Shanghai 200433, China

Received 13 July 1999; received in revised form 3 December 1999; accepted 22 December 1999

Communicated by A.R. Bishop

Abstract:The homogeneous balance method is extended to search for Backlund transformation and similarity reduction of ¨nonlinear partial differential equations. It is shown that there exist close connections among the homogeneous balance method, WTC method and CK direct reduction method. The variant Boussinesq equations are discussed as an illustrative example. Their Backlund transformation, linearization transformation and three types of similarity reductions are obtained. ¨In the meantime, some new travelling wave solutions also are found. q2000 Published by Elsevier Science B.V. All rights reserved.
Keywords: Homogeneous balance method; Backlund transformation; Similarity reduction; Travelling wave solution¨


⊙第16篇⊙

Extended tanh-function method and its applications to nonlinear equations
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注意:本论文已在《Physics Letters A》杂志2000年第277期212-218页发表
使用者请注明论文出处

(SCI收录本文)

范恩贵
(复旦大学 数学研究所,上海   200433

 摘要:我们给出一种广义Tanh函数法,可用于得到非线性方程多种行波解,有趣的是其中一个参数的符号可用于判断行波解的形状和数量。
关键词

Extended tanh-function method and its applications to nonlinear equations

Engui Fan
Physics Letters A 277 (2000) 212–218

Institute of Mathematics, Fudan University, Shanghai 200433, PR China

Received 26 July 2000; received in revised form 25 October 2000; accepted 25 October 2000

Communicated by C.R. Doering

Abstract:An extended tanh-function method is proposed for constructing multiple travelling wave solutions of nonlinear partial differential equations (PDEs) in a unified way. The key idea of this method is to take full advantages of a Riccati equation involving a parameter and use its solutions to replace the tanh function in the tanh-function method. It is quite interesting that the sign of the parameter can be used to exactly judge the numbers and types of these travelling wave solutions. In addition, by introducing appropriate transformations, it is shown that the extended tanh-function method still is applicable to nonlinear PDEs whose balancing numbers may be any nonzero real numbers. Some illustrative equations are investigated by this means and new travelling wave solutions are found. 
Keywords:
Nonlinear partial differential equation; Travelling wave solution; Riccati equation; Symbolic computation


⊙第17篇⊙

Soliton solutions for a generalized Hirota–Satsuma coupled KdV equation and a coupled MKdV equation
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 注意:本论文已在《Physics Letters A》杂志,2001年第282期,18-22页发表
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(SCI收录本文)

范恩贵
(复旦大学 数学研究所,上海   200433

摘要:利用广义Tanh方法,我们分别给出了广义耦合HS方程和耦合MKV方程四种孤子解。
关键词:

Soliton solutions for a generalized Hirota–Satsuma coupled KdV equation and a coupled MKdV equation

Engui Fan
Physics Letters A 282 (2001) 18–22

Institute of Mathematics, Fudan University, Shanghai 200433, PR China

Received 20 November 2000; received in revised form 22 February 2001; accepted 23 February 2001

Communicated by A.R. Bishop

Abstract:We make use of an extended tanh-function method and symbolic computation to obtain respectively four kinds of soliton solutions for a new generalized Hirota–Satsuma coupled KdV equation and a new coupled MKdV equation, which were introduced recently by Wu et al. 
Keywords:
Coupled MKdV equation; Soliton solution; Riccati equation; Symbolic computation


⊙第18篇⊙

Gerjikov-Ivanov 方程的Darboux变换和孤子解
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注意:本论文已在《JOURNAL OF PHYSICS A: MATHEMATICAL AND GENERAL》杂志2000年第33期6925–6933页发表
使用者请注明论文出处

(SCI收录本文)

范恩贵
(复旦大学 数学研究所,上海   200433

 摘要:利用谱问题的规范变换和约化技巧,构造了Gerjikov-Ivanov 方程的NDarboux变换,由此,得到了Gerjikov-Ivanov 方程的单孤子解和双孤子解。
关键词
Gerjikov-Ivanov 方程,Darboux变换,孤子解

Darboux transformation and soliton-like solutions for the Gerdjikov–Ivanov equation

Engui Fan
JOURNAL OF PHYSICS A: MATHEMATICAL AND GENERAL. 33 (2000) 6925–6933.

Institute of Mathematics, Fudan University, Shanghai 200433, PR China

Received 27 April 2000

Abstract. An explicit N -fold Darboux transformation with multiparameters for a kind of coupled derivative nonlinear Schr¨ odinger equation is constructed with the help of a gauge transformation of a spectral problem. As a reduction, a Darboux transformation of the Gerdjikov–Ivanov equation is obtained. Furthermore, the explicit soliton-like solutions of the Gerdjikov–Ivanov equation are given by applying its Darboux transformation.


⊙第19篇⊙

导数Schrodinger型方程族及其多Hamilton结构
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注意:本论文已在《JOURNAL OF PHYSICS A: MATHEMATICAL AND GENERAL》杂志2001年第34期513-519页发表
使用者请注明论文出处

(SCI收录本文)

范恩贵
(复旦大学 数学研究所,上海   200433

 摘要:本文提出一个谱问题并由此导出一导数Schrodinger型方程族,证明了该方程族在Liouville意义下可积并拥有多Hamilton结构,发现几类著名的方程,如KNCLLGISTO 方程等,均可做为特殊的约化包含在该方程族中,特别得到了KNCLLGI方程Lax对、Hamilton结构的统一、显式公式。
关键词
:方程族,Hamilton结构,Liouville可积

Integrable systems of derivative nonlinear Schr¨ odinger type and their multi-Hamiltonian structure

Engui Fan
JOURNAL OF PHYSICS A: MATHEMATICAL AND GENERAL. 34(2001), 513-519

Institute of Mathematics, Fudan University, Shanghai 200433, PR China

Received 1 September 2000, in final form 6 December 2000

Abstract:A spectral problem and the associated hierarchy of Schr¨ odinger type equations are proposed. It is shown that the hierarchy is integrable in Liouville’s sense and possesses multi-Hamiltonian structure. It is found that several kinds of important equation such as the Kaup–Newell (KN) equation, the Chen–Lee–Liu (CLL) equation, the Gerdjikov–Ivanov (GI) equation, the modified Korteweg–de Vries equation and the Sharma–Tasso–Olever equation are members in the hierarchy as its special reductions. Moreover, KN, CLL and GI equations are described by using a unified generalized derivative Schr¨ odinger equation involving a parameter, and their Hamiltonian structure and Lax pairs are also given by unified and explicit formulae.


⊙第20篇⊙

纵弯式压电微电机研究
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注意:本论文已在《中国机械工程》杂志(2001,12(6):704-706)发表
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邵培革      王立鼎
(大连理工大学机械系,大连,116024)

摘要分析了纵弯式压电微电机的驱动机理,提出了电机驱动臂的设计方法。研制了直径为5mm的纵弯式压电微电机并进行了实验研究。
关键词 纵弯式;压电微电机; 驱动机理;设计规则

Research on Micro Piezoelectric Motor Driven by Longitudinal- Transverse Vibration Cantilevers

Shao Peige  Wang Liding
(Dalian Uni. of Technology Mechanical Engineering, Dalian, China, 116024)

Abstract: The driving mechanism of a micro motor is analyzed and the design method of driving is presented. A f5mm of piezoelectric micro motor driven by longitudinal-transverse vibration cantilevers is developed and experimental researches are carried out on it.
Key Words: longitudinal- transverse vibration piezoelectric motor, Driving Mechanism, Design role


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