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Behaviors of Cementites in Medium Carbon Low Alloy Steels during Surface Nanocrystallization

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Behaviors of Cementites in Medium Carbon Low Alloy Steels du...

第五届国际低合金高强度钢会议暨第三届国际超细晶粒钢会议

作者： ZHANG Junbao1 LIU Yuliang2 SONG Hongwei1 WU Jie2 SHI Bi1 XIONG Tianying2 (1. Baosteel technology center Baoshan Iron & Steel CO. LTD. Shanghai 201900 china 2. institute of Metal research Chinese Academy of Sciences shenyang 110016 china)

Behaviors of cementites in surface nanocrystallized layers of medium carbon low alloy steel induced by different methods were systematically investigated using XRD analysis, TEM and M?ssbauer spectra.

关键词： surface nanocrystallization cementite medium carbon low alloy steel dissolution.

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轴向车铣等距曲边三角形廓形运动建模及仿真

沈阳工业学院学报 2003年第1期22卷 67-69页

作者：刘萍贾春德姜增辉沈阳工业学院高速切削工程技术中心辽宁沈阳110016

建立轴向车铣加工等距曲边三角形廓形运动过程的矢量表达式 ,用内嵌AutoLisp的AutoCAD2 0 0 0对轴向车铣加工等距曲边三角形运动曲线进行计算机仿真 .得出已加工表面质量与铣刀齿数、铣刀与工件转数比成正比 ,且与铣削方式有关 ;

关键词：轴向车铣等距曲边三角形建模仿真

Studies of Structure Evolution of Nanostructured Hf_(11)Ni_(89) Alloy

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Journal of Materials Science & technology 1998年第3期14卷 205-210页

作者： Zhenfu DONG and Lianmao PENG(Beijing Lab. of Electron Microscopy, institute of Physics and center for Condensed Matter Physics,Chinese Academy of Sciences, P.O.Box 2724, Beijing 100080, china)Ke LU and Zhuangqi HU(State Key Lab. for RSA, institute of Meta Beijing Lab. of Electron Microscopy Institute of Physics and Center for Condensed Matter Physics Chinese Academy of Sciences P.O.Box 2724 Beijing 100080 China State Key Lab. for RSA Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China

A nanostructured Hf11Ni89 ribbon sample was prepared by melt-spinning. It was found that the as-quenched sample is composed of a major HfNi5 compound nanophase and an interfacial magnetic Ni(Hf) solid solution phase. The structure evolution of the sample was studied by using X-ray difFraction (XRD), transmission electron microscopy (TEM), difFerential scanning calorimetry (DSC), resistivity and magnetothermal analysis. Upon heating, a second precipitation process of the Ni(Hf) phase prior to grain growth wa5 detected by means of both structural analysis and physical property measurements. The measurement results are discussed based on the relationship between microstructure and physical properties.

关键词： Studies of Structure Evolution of Nanostructured Hf Alloy Ni

An Instance Generator for Project Scheduling Problems with Multi-Skilled Personnel Constraints

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An Instance Generator for Project Scheduling Problems with M...

第24届中国控制与决策会议

作者： WANG Yifan 1 , CHEN Di 1,2 , LIU Shixin 1 ,ZENG Qingfu 3 1. College of Information Science & Engineering, Northeastern University, shenyang 110819, china2. Department of Information technology and Business Administration, Dalian Neusoft institute of Information, Dalian 116023, china3. Shandong Iron and Steel Group Logistics center, Jinan 250132, china

As the knowledge-based economy society comes, knowledge workers, which has replaced capital, facilities, raw material and other kinds of traditional resource, is becoming the most important resource in economic activity. Project scheduling problems with multi-skilled personnel constraints （PSPMSPC） has come to one of the research hotspots in project management field. researchers have proposed a wide variety of models and algorithms, but there are not benchmark instances for testing these models and algorithms, which leads to the hardship in the performance comparison of different models and algorithms. Making use of the typical resource-constrained project scheduling problems （RCPSP） as basic instances, combining with the feature of multi-skilled personnel resource, this paper presents several parameters concern about the solving difficulty, and proposes an instance generator for the PSPMSPC. The proposed generator can generate instances with high randomicity under different problem scales and parameter sets, which has a high level of theoretical and practical value.

关键词： Project Scheduling Human resource Multi-skilled personnel Instance generator

三坐标测量系统与 CAD 系统接口技术研究

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沈阳工业学院学报 1997年第4期16卷 20-24页

作者：魏永合杨国昆郝永平沈阳工业学院CAD中心

在分析ＤＭＩＳ文件结构的基础上，阐述了ＤＭＩＳ文件格式的规范，讨论了几何模型转换方法．用Ｃ语言编写了从ＤＩＭＳ几何模型到ＣＡＤ几何模型转换的通用接口程序，从而实现了测量系统与ＣＡＤ系统之间的集成．

关键词：三坐标量仪 CAD 接口几何模型

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室温离子液体在催化及有机反应中的应用

当代化工 2004年第2期33卷 99-103,124页

作者：何玲玲王新石中亮高恩君沈阳化工学院辽宁沈阳110142 中山大学测试中心广东广州510275

简述了室温离子液体在氢化反应、氧化反应和酯化反应等有机反应中作为催化剂和溶剂的应用。指出室温离子液体具有熔点低、有较宽的液态范围 (大约 30 0℃ )、很强的溶解能力、良好的酸性并在很大的范围内可调、几乎没有蒸气压、高极性... 详细信息

简述了室温离子液体在氢化反应、氧化反应和酯化反应等有机反应中作为催化剂和溶剂的应用。指出室温离子液体具有熔点低、有较宽的液态范围 (大约 30 0℃ )、很强的溶解能力、良好的酸性并在很大的范围内可调、几乎没有蒸气压、高极性、较宽的电化学窗口和较好的热稳定性和化学稳定性等独特性能。

关键词：室温离子液体催化有机反应应用

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ICAI系统中自动答疑策略与机制探讨

沈阳工业学院学报 2003年第1期22卷 4-8页

作者：田凤杰阎明印杨猛于雷岩沈阳工业学院机械工程分院辽宁沈阳110016

针对智能型教学课件 (ICAI)中答疑子系统 ,提出了推理策略、解析机、推理机与知识的表达组织形式等设计构想 .探讨了系统关于语义分析、知识管理、关联规则挖掘、行为跟踪等问题 .简要地分析了解析机、推理机。

关键词：关联度知识库 ICAI 推理机知识管理

Generating Characteristic and Experimental Studies of Ozone with Dielectric Barrier Discharge

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Generating Characteristic and Experimental Studies of Ozone ...

The Fourth International Conference on Applied Electrostatics

作者： Zhang Zhitao , Bai Mindong, Li Shen, Bai Xiyao, Zhou XiaojianDepartment of Physics, College of Science, Northeastern University, shenyang 110006, Liaoning, P. R. china Environmental Engineering research institute, Dalian Maritime University, Dalian 116026, Liaoning, P. R. china

The theory and method of strong ionization discharge are presented in this paper. The intensity of electric field discharge has a key action on the process of O molecule ionization and decomposition. Only when the reduced field in discharge gap is more than 400Td, the electrons can gain enough energy (>12eV) to ionize and decomposed O molecules and to inhibit the process of re-decomposition of O molecules. With this method, we have developed a ozone generation of miniaturization which was fabricated by stacking discharge modules, only volume of 0.36m×0.42m×0.27m for ozone production capacity of 1kg/h. In addition, the ozone production efficiency is significantly improved in comparison with a conventional ozone generator, only 100g/kWh at ozone concentration of 200g/Nm.

关键词： Dielectric barrier discharge Reduced field Miniaturization Ozone concentration

基于Hopfield网络的衰变目标识别研究

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沈阳工业学院学报 2002年第2期21卷 65-69页

作者：董慧颖张明扬杨洁沈阳工业学院信息科学与工程分院辽宁沈阳110016 沈阳市高科技创业中心

人工神经网络是对人脑功能的某种程度的反映 .具有自适应 ,自学习的能力 ,可通过对模式样本的自学习 ,从中获取特征 ,并能将学习获得的知识应用到后来的识别中 .本文采用单层离散 Hopfield网络来实现衰变目标的识别 .提出了选取 Hopfiel... 详细信息

人工神经网络是对人脑功能的某种程度的反映 .具有自适应 ,自学习的能力 ,可通过对模式样本的自学习 ,从中获取特征 ,并能将学习获得的知识应用到后来的识别中 .本文采用单层离散 Hopfield网络来实现衰变目标的识别 .提出了选取 Hopfield网络三个记忆模式方法 .

关键词： Hopfield网络人工神经网络模式识别衰变目标识别