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һ  ڶ       ڰ ھʮ11 һ


ѵ1ƪ

Iһ֦⣭߉ˮӹg
^ȫՈc朽
ע⣺ՓڡCеOӋc칤̡(19993:12)s־l
ʹՈעՓij̎

BW   w Ա

ժҪ Փ˸߉ˮӹgԴиCB˫@ø߉ˮĻԭ͑÷
PI~ ߉ ˮ иC

A Exciting Flower of ManufacturingHigh Pressure Water Jet Cutting Technology

Zhao Wei ,Liu Xiaobing ,Zhu Pailong

Abstract This paper tells the origin and cutting mechanism of water jet cutting technology, and introduces fundamental of getting high pressure water jet and its application .
Key words: high pressure; water jet; cutting mechanism


ѵ2ƪ

Һϵyо
^ȫՈc朽ӣ
ע⣺ՓڡCеƌWcg(2000.19(1):146149)s־l
ʹՈעՓij̎

A Ա
(BWCIMS 116023)

ժҪĽBķoһNķģ͵ı_ҺϵyOӋ鹤̑ñ̽ӑķڹϵyеđY}ԌӺͷՌ傀ӴηҺϵyӴΘɼBcͨ
PI~ķҺϵy

Research on Hydraulic System Design with Object-Oriented Analysis Method

Dong Jianhua, Liu Xiaobing

CIMS Center of Dalian University of Technology 116023

Abstract:Object-Oriented Analysis (OOA) is introduced and a representation method of OOA is provided in this paperHydraulic system is selected as engineering application background.How to apply OOA method to engineering applications is discussed.According to Class-Object level Structure levelSubject levelAttribute levelService level these five levelswe analysis the class hierarchy of hydraulic system their interrelation and their communication.
Keywords:Object,Object-Oriented Analysis (OOA),hydraulic system


ѵ3ƪ

΢CеԪ̓xMչ
^ȫՈc朽
ע⣺ՓڡWܹ(1999,7(1):1015)s־l
ʹՈעՓij̎

BWCеϵ

LWܙCео

 

ժҪ΢CеԪ΢Cеxmڴaгɱ܃we΢Сɶȸߵcʮ_lЈUȡ˾޴MչչFõǰ

New Progress of MEMS Component and Instrument

Dalian University of Science and Technology Shao Pei-ge
Changchun Institute of and Optics and Fine Mechanics Wang Li-ding Ren Yan-tong

Abstract:MEMS component and Instrument are suitable for batch manufacture and have the advantage of low price, high reliability, smaller volume and large-scale integration. In this decade a great progress has been made in the research, development and marketing of this field, which suggests a bright future.


ѵ4ƪ

چxӈDĹ̈DDַȡ
^ȫՈc朽
ע⣺Փڡ̈DWW(2000.21(2):9095)s־l
ʹՈעՓij̎

W
(BWCе̌WԺCAD&CGо B 116024)

ժҪ:̈DDĈDķָһҪ}ژxӈDAρȡַDķxȏĆxкYxַPMгxȻַPcvӈDַPȡַMһYxַcГMַַÛཻжùַӾļDΌַMжˮƽַDˮƽxӈDԱ_׺cؓmReʂ㷨^õַ̎cDεճB}ȡЧܺ܉ַw
PI~: xӈDDķxַPַȡȡ

An Algorithm of Extracting Characters from Scanned Image of Engineering Drawings Using Primitive Region Adjacency Graph

Zhang Xiwen, Ou Zongying
(Institute of CAD&CG, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024)

AbstractIt is a important issue how to separate text from scanned image of engineering drawings. The paper presents an algorithm to extract characters and their features from images using Primitive Region Adjacency Graph. We can easily get character stroke regions from primitive regions. At start of a character stroke region, a character region grows by traversing the graph for adjacent character stroke regions. After analyzing features of character regions, we can get real character regions. A string can be got through combining those near and collinear character regions. If rectangles inflated of two character regions are intersected, they are near. The direction of a string region is attained by the center points of enclosed rectangles of characters shared by the string and figures attached. Then characters not horizontal are rotated to horizontal. A Primitive Region Adjacency Graph can represent geometrical and topological features of a character region, which is helpful to extract features of a character region. Some applications show that the algorithm can deal with adherence of characters to graphics, and is effective and robust.
Key words Primitive Region Adjacency Graph, text-graphics separation, character stroke regions, character extraction, feature extraction


ѵ5ƪ

چxӈDĈAcARe
^ȫՈc朽
ע⣺ՓڡЇDDΌW(2000.5(1):7074)s־l
ʹՈעՓij̎

W
(BWCеϵCAD&CGо
B 116024)

ժҪ ̈DݔcReCADƏVռPIE֮һҪQдDÆ}ڹ̈DDReоAReRe㷨еcycyĈAReǻھαƽһNچxӈDĈAARe㷨ֱȡAֵDˮƽγ̾aPγ̻ھcؓһԘɗlжxMзѵÆx򣨾͈AxӈD^DĎ׺ΌcؓPϵx@ΠxA^ȣRewAAReȏӈDcгȡANӈAȻĴ˳lvDͬA·MALK@ÈA͈AĎ׺α_㷨^õ̎AcμAཻcm^Re^
PI~ ̈DʸARelxӈD

An Algorithm for Recognizing Circular Arcs and Circles Using Primitive Region Adjacency Graph

Zhang Xiwen ,Ou Zongying
(CAD&CG Institute, Dalian University of Technology, Dalian 116024)

Abstract: The scanning input and recognition of engineering drawings is a key step in CAD, and is to reuse lots of engineering drawings. In study on recognition of scanned image of engineering drawings, the recognition for circular arcs is an important and difficult problem. Recent algorithms of recognizing arcs are mainly about approximation with lines. This paper presents an algorithm for recognizing arcs and circles using Primitive Regions Adjacent Graph. The method can directly extract arc. The binary image is encoded with black horizontal runlength. A stripe region consists of correlative runlengths with the same width and topology. The stripe regions then can be segmented as some primitive regions (line and arc). The Graph is used to describe geometrical property and topological constraint. The primitive region supplies shape information (line, arc, arrow etc) improving integrality of recognition. After extraction of the arc region from regions, the seed for an arc is obtained. By traversals for the graph, the seed arc grows by constrains for the same circle. Some applications to recognize arcs and circles are finally provided, which show that the algorithm is effective and robust, can solve well intersection and tangency of between a arc and a line or a arc.
Key words engineering drawings, vectorization, recognition for circular arc, stripe region, Primitive Region Adjacency Graph


ѵ6ƪ

aƷܼɈrϵyо
^ȫՈc朽
ע⣺ՓڡMϙCcԄӻӹ
(199912:2427)s־l
ʹՈעՓij̎

ԱꐕԴT
BW
CIMSģ

ժ ҪaƷrϵyоc_lҪ̎SYͷǽY@Щذgؔغ̄ՈrصڌIľrϵyĹܱ^һaƷܼɈrϵyMо
PI~aƷܼrϵyǽYԌW
ЈD̖TP182TP311.1ļRaB¾̖1001-2265(1999)12-0024-04

Research on an intelligent integrated quoting-price system for manufacturing-products

Zhang BaobaoLiu XiaobingChen XiaochuanFeng Xinan

Abstract: Developing a quoted-price system for manufacturing productions is often in relation to many factors between construction and non-construction.Because of the professional limity,its functions was singleness.So this paper proposes a new conception and measure for it,an intelligent integrated quoting-price system for manufacturing-products to discuss.
Key words:manufacturing products;intelligent integrated;quoting-price system;non-construction;self-learning


ѵ7ƪ

Ĥͳs΢оF
^ȫՈc朽
ע⣺Փڡ
(2000,22(3):157159,167)s־l
ʹՈעՓij̎

    d  |  ɯ
(
BWCе̌WԺ  116024)

ժҪsĤһN܃΢Ԫڲ醴īIĻAB˳sĤӵԭC˱Ĥͳs΢_lоɹcB˱Ĥͳs΢΢wϵyеđھԳ•΢R_еđú΢СߙCееđsĤ΢еİlչչ
PI~ s ΢ Ĥ

Current Study on Giant Magnetostrictive Thin Film Microactuators

Jia Zhenyuan, Wu Dan , Yang Xing,Guo Dongming,Guo Lisha

(School. of Mechanical Engineering,Dalian University of Technology ,Dalian,116024)

Abstract: Giant Magnetostictive thin film is a new type of actuating components with high property.Based on many references,the article introduces the actuating principle of Giant magnetostictive thin film,dicusses the late research results of giant magnetostrictive thin film microactuators.Emphasis on the apply to microfluid control system,linear ultrasonic micromotor and micro walking mechanism.Put forward the progress of giant magnetostictive thin film in microactuators.
Key words:giant magnetostictive ; microactuator ; thin film


ѵ8ƪ

swԪеđ
^ȫՈc朽
ע⣺Փڡ
CcҺ(2000,2:14,27)s־l
ʹՈעՓij̎

ZԪ d 䵤 |
(BWCе̌WԺ  116024)

ժҪ:sһN͵Ĺܲڲ醴īIĻAB˳sԭͷwԪеđоFswCееđǰMչ
PI~:s wԪ

Abstract: Giang magnetostictive material is a new type of functional materials.Based on so many references,introduce the principle and classification of giant magnetostictive actuators,current study on fluid control components.Put forward the future of giant magnetostictive actuators in fluid mechanism.
Key word:giant magnetostictive actuator fluid control components


ѵ9ƪ

֪RĵCADģʽо
dՓȫՈc朽
ע⣺Փڡ
CеƌWcg(1999,18(3):506508)s־l
ʹՈעՓij̎
O η
BWM켼gо 116024

ժҪ:ڷOӋ^̺֪RcĻAYX݆LCADϵyGHESCADϵyĿܽY֪RʾDLƵPIgM̽ӑñĽoģʽߵCADϵyc
PI~:s ӋCoOӋ ֪Rʾ
ЈD̖TG 702

Research on Knowledge-Based CAD Model for Cutting Tool

Sun Yuwen, He Fang, Liu jian
(Dalian University of Technology,Dalian, 116024)


ѵ10ƪ

ϵyY̽ӑ
dՓȫՈc朽
ע⣺Փڡ
CеƌWcg(1998,17(3):480482)s־l
ʹՈעՓij̎

÷Ա
BWCIMSġB116024

ժҪҪB˺̵Ŀ˺ͻԭӋCowϵYߌSʩĽoҲ˺Čʩ
PI~:̡aƷYؽMOӋ^̺
ЈD̖TB 21

Discussion System Construction of Ratio Engineering
Li Longmei, Zhang Baobao, Liu Xiaobing
(Dalian University of Technology, Dalian, 116024)

ABSTRACT: In this paper, the principle and the aims of Ratio Engineering(RE) are introduced briefly. A complete system construction of computer aided RE is built, and steps of implementation are described according to our practical experience.
Keywords:Ratio engineeirng,Product structure reengineering, Process engineering reengineering


һ  ڶ       ڰ ھʮ11 һ

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