Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 945

会议视频 112

会议专题 2

会议信息 1

年份

2024 1

2023 61

2022 81

2021 116

2020 73

2019 39

2018 59

2017 58

2016 42

2015 39

2014 31

2013 37

2012 33

2011 33

2010 59

2009 51

2008 25

2007 29

2006 12

2005 21

展开︾

关键词

颠覆性技术 22

关键技术 17

智能制造 16

信息技术 14

技术 14

农业科学 11

技术预见 11

发展趋势 8

工程科技 8

三峡工程 7

战略研究 7

施工技术 7

碳中和 7

能源 7

2035年 6

技术创新 6

2035 5

发展战略 5

城镇建设 5

展开︾

检索范围：

排序：展示方式：

Research on integrating customization design for mechanical product

TAI Ligang, LI Dianqi, ZHONG Tingxiu, LI Zhi

《机械工程前沿（英文）》 2007年第2卷第1期页码 89-93 doi: 10.1007/s11465-007-0015-9

摘要： This paper proposes an integrating rapid customization design system which combines various technologies such as Web, knowledge based engineering (KBE), engineering database and Computer Aided Design (CAD) and has been used in elevator design. The whole system is set up on the base of engineering database technology, integrating Product Data Management (PDM), Enterprise Resource Planning (ERP) etc. It adopts Web technology to enable customers to individually customize products remo tely through the internet. The system also adopts KBE to manage and reuse product design knowledge, while combining the technology of product family modeling and technologies of feature modeling and parametric design, based on the assembly of the CAD system of Unigraphics Solutions Inc., to create a product family case library that achieves intelligent, rapid design customization.

关键词： engineering database product Management database technology knowledge

HTML PDF 收藏

Computer-Aided Design System for CP Single-Screw Compressor

SHEN Jing-feng, YAO Fu-sheng

《机械工程前沿（英文）》 2006年第1卷第1期页码 21-25 doi: 10.1007/s11465-005-0018-3

摘要：

To design various optimum parameters and simulate the working process of CP single-screw compressor, the Computer-Aided Design (CAD) system for the CP single-screw compressor has been established. A new method based on computer graphics technology, database technology, object-oriented programming technology, and visual simulation technology has been adopted in this CAD system. The system has integrated solid modeling function with parameterization design function and animator simulation function based on analyzing the working principle of the CP single-screw compressor. The experimental results show that the CAD system for the CP single-screw compressor is practical and feasible.

关键词： CP single-screw database technology simulation technology programming technology animator simulation

HTML PDF 收藏

A prototype online database-enabled design framework for wind analysis/design of low-rise buildings

Dae Kun KWON,Ahsan KAREEM,Deepak KUMAR,Yukio TAMURA

《结构与土木工程前沿（英文）》 2016年第10卷第1期页码 121-130 doi: 10.1007/s11709-015-0329-3

摘要： This study presents a development of an advanced cyberbased database-enabled design module for low-rise buildings (DEDM-LR) which provides estimation of the wind-induced responses for main wind force resisting frames by making direct use of pressure time histories measured at a large number of pressure taps over a suite of building models. These responses may be considered in lieu of code-specified load effects in which the overall accuracy may be influenced by the inherent simplifications in codes. In addition, this new automated approach is particularly attractive and advantageous as it allows a web-based online analysis/design via intuitive user-friendly interfaces for both the input and output in terms of familiar web-style forms that are nowadays very common in most of web-based services. Presently, the DEDM-LR hosts an aerodynamic database developed by the Tokyo Polytechnic University (TPU), Japan for a variety of building configurations like flat, gable, and hip roofs under suburban terrain flow condition with immediate application to other databases. The paper shows the efficacy and validity of the DEDM-LR by walking through its details and examples on selected gable-roofed buildings. The architecture of DEDM-LR platform offers the ability to pool resources by hosting other databases that may become available in the near future.

关键词： wind loads low-rise building pressure measurement aerodynamics building design structural response building codes information technology (IT)

HTML PDF 收藏

Case modifying of high-speed cutting database based on CSP and similarity theory

Kejun XIANG, Zhanqiang LIU, Xing AI

《机械工程前沿（英文）》 2009年第4卷第1期页码 83-87 doi: 10.1007/s11465-009-0014-0

摘要： By analyzing the reasoning of a high-speed cutting database system, a case modifying method is put forward. According to the variables’ difference of the solution part in a case, a constraint satisfaction problem (CSP) and similarity calculation are used to modify a case. The constraint relationship of discrete variables is described by establishing a rule knowledge base. The algorithm of CSP is used to solve the discrete variable constraint problem. On the basis of the high-speed cutting theory, a similarity calculation formula is deduced to calculate the consecutive variables. The CSP and similarity calculation are applied to case modifying, which is possible to automatically modify cases in the high-speed cutting database system.

关键词： high-speed cutting database case modifying CSP similarity calculation

HTML PDF 收藏

A comprehensive information database (CID) of breast cancer patients in China

null

《医学前沿（英文）》 2012年第6卷第2期页码 212-216 doi: 10.1007/s11684-012-0185-7

HTML PDF 收藏

Intelligent high-speed cutting database system development

XIANG Kejun, LIU Zhanqiang, AI Xing

《机械工程前沿（英文）》 2008年第3卷第2期页码 180-188 doi: 10.1007/s11465-008-0038-x

摘要： In this paper, the components of a high-speed cutting system are analyzed firstly. The component variables of the high-speed cutting system are classified into four types: uncontrolled variables, process variables, control variables, and output variables. The relationships and interactions of these variables are discussed. Then, by analyzing and comparing intelligent reasoning methods frequently used, the hybrid reasoning is employed to build the high-speed cutting database system. Then, the data structures of high-speed cutting case base and databases are determined. Finally, the component parts and working process of the high-speed cutting database system on the basis of hybrid reasoning are presented.

关键词： control hybrid reasoning process component uncontrolled

HTML PDF 收藏

基于I-deas的工装CAD系统中知识库系统的研究

尹晓伟,郝永平,钱文学,魏永合

《中国工程科学》 2004年第6卷第10期页码 71-74

摘要：

论述了基于三维建模软件I-deas的工装CAD系统中工装知识库系统的结构、功能及其子库实现方法，分析了子库之间的相互关系。以开发的工装设计管理系统中工装知识库系统开发为例，描述了知识库系统与工装设计管理系统的集成。

关键词：工装基于知识的工程工装知识库成组技术 I-deas

HTML PDF 收藏

ARGs-OAP v3.0——抗生素耐药基因数据库的筛选和分析流程优化 Article

Xiaole Yin, Xiawan Zheng, Liguan Li, An-Ni Zhang, Xiao-Tao Jiang, Tong Zhang

《工程（英文）》 2023年第27卷第8期页码 234-241 doi: 10.1016/j.eng.2022.10.011

摘要：

Antibiotic resistance, which is encoded by antibiotic-resistance genes (ARGs), has proliferated to become a growing threat to public health around the world. With technical advances, especially in the popularization of metagenomic sequencing, scientists have gained the ability to decipher the profiles of ARGs in diverse samples with high accuracy at an accelerated speed. To analyze thousands of ARGs in a highthroughput way, standardized and integrated pipelines are needed. The new version (v3.0) of the widely used ARGs online analysis pipeline (ARGs-OAP) has made significant improvements to both the reference database—the structured ARGs (SARG) database—and the integrated analysis pipeline. SARG has been enhanced with sequence curation to improve annotation reliability, incorporate emerging resistance genotypes, and determine rigorous mechanism classification. The database has been further organized and visualized online in the format of a tree-like structure with a dictionary. It has also been divided into sub-databases for different application scenarios. In addition, the ARGs-OAP has been improved with adjusted quantification methods, simplified tool implementation, and multiple functions with userdefined reference databases. Moreover, the online platform now provides a diverse biostatistical analysis workflow with visualization packages for the efficient interpretation of ARG profiles. The ARGs-OAP v3.0 with an improved database and analysis pipeline will benefit academia, governmental management, and consultation regarding risk assessment of the environmental prevalence of ARGs.

关键词： SARG database ARGs-OAP Antibiotic-resistance genes Environmental metagenome Quantification

HTML PDF 收藏

微生物资源分子鉴定技术的研究进展

张羽,马爱进,高利芬,彭海,贾英民,孙宝国

《中国工程科学》 2021年第23卷第5期页码 86-93 doi: 10.15302/J-SSCAE-2021.05.011

摘要：

微生物作为全世界分布最广且拥有量最多的生物资源，应用领域广泛，具有突出的经济价值和社会价值。以往虽已有众多微生物研究，但限于技术方法无法深入展开，随着微生物检测技术的不断发展，为微生物研究提供了新途径和新方法。本文总结了国内外微生物资源分子鉴定技术的发展及其应用情况，主要有脱氧核糖核酸（DNA）含量测定、核酸杂交技术、DNA 指纹图谱技术、核酸扩增技术、基因芯片技术和高通量测序技术等；梳理了现有微生物资源分子鉴定技术的优缺点；分析了微生物资源分子鉴定技术存在的问题，如依赖于实验室环境，实验结果的重现性、准确性不足，缺乏相应的微生物数据库。为促进我国微生物资源的保护和利用，研究建议，要继续加强对各鉴定技术的研究，建立具有自主知识产权的微生物资源鉴定平台，完善微生物资源数据库等。

关键词：微生物资源，分子鉴定，核酸扩增技术，基因芯片技术，高通量测序技术，微生物数据库

HTML PDF 收藏

面向金融场景的下一代数据库测试基准研究

荆一楠 ,张寒冰,李智鑫 ,王晓阳 ,吴杰,柴洪峰

《中国工程科学》 2022年第24卷第4期页码 121-132 doi: 10.15302/J-SSCAE-2022.04.014

摘要： His major research field is database.

关键词：金融业银行金融数据数据库测试基准

HTML PDF 收藏

Review of research and development of computer-aided Kansei Engineering

Li LIN, Chengqi XUE

《机械工程前沿（英文）》 2009年第4卷第2期页码 125-128 doi: 10.1007/s11465-009-0023-z

摘要： Kansei Engineering is an important research approach and has become the hotspot of research in design fields. The concept of Kansei Engineering is introduced based on the investigation of related literatures. The working process and the key technology of computer-aided Kansei Engineering systems are discussed. Finally, the development trend of Kansei Engineering is outlined according to the development of computer and networking technology.

关键词： Kansei words design elements system database

HTML PDF 收藏

Loop theory and applications to some key problems of kinematic structure of kinematic chains

Huafeng DING, Zhen HUANG

《机械工程前沿（英文）》 2009年第4卷第3期页码 276-283 doi: 10.1007/s11465-009-0061-6

摘要： Structure synthesis of mechanisms is a pivotal issue in the field of mechanical innovation and mechanical conceptual design. In this paper, a new loop theory of kinematic chains is proposed. Based on this theory, some key problems that hamper computer-based automatic synthesis of mechanisms are solved. 1) The open problem of isomorphism of kinematic chains that has lasted for more than four decades is successfully solved. 2) A new rigid sub-chain detection method that is especially suitable for complex chains is proposed. 3) The characteristic representation code remains the same even if the drawing modes and labeling ways of a chain are changed, and an atlas database of kinematic chains is established. The multi-value problem for the representation of kinematic chains is solved. The results in this paper will benefit the digitization and computerization of mechanical conceptual design.

关键词： Loop theory kinematic chains isomorphism atlas database

HTML PDF 收藏

The liver tissue bank and clinical database in China

Yuan YANG, Yi-Min LIU, Ming-Yue WEI, Wei-Ping ZHOU, Hong-Yang WANG, Meng-Chao WU, Yi-Fei WU, Jun-Hui GAO, Lei LIU,

《医学前沿（英文）》 2010年第4卷第4期页码 443-447 doi: 10.1007/s11684-010-0190-7

摘要： To develop a standardized and well-rounded material available for hepatology research, the National Liver Tissue Bank (NLTB) Project began in 2008 in China to make well-characterized and optimally preserved liver tumor tissue and clinical database. From Dec 2008 to Jun 2010, over 3000 individuals have been enrolled as liver tumor donors to the NLTB, including 2317 cases of newly diagnosed hepatocellular carcinoma (HCC) and about 1000 cases of diagnosed benign or malignant liver tumors. The clinical database and sample store can be managed easily and correctly with the data management platform used. We believe that the high-quality samples with detailed information database will become the cornerstone of hepatology research especially in studies exploring the diagnosis and new treatments for HCC and other liver diseases.

关键词： liver neoplasm tissue bank information systems standardization

HTML PDF 收藏

Slope stability analysis based on big data and convolutional neural network

Yangpan FU; Mansheng LIN; You ZHANG; Gongfa CHEN; Yongjian LIU

《结构与土木工程前沿（英文）》 2022年第16卷第7期页码 882-895 doi: 10.1007/s11709-022-0859-4

摘要： The Limit Equilibrium Method (LEM) is commonly used in traditional slope stability analyses, but it is time-consuming and complicated. Due to its complexity and nonlinearity involved in the evaluation process, it cannot provide a quick stability estimation when facing a large number of slopes. In this case, the convolutional neural network (CNN) provides a better alternative. A CNN model can process data quickly and complete a large amount of data analysis in a specific situation, while it needs a large number of training samples. It is difficult to get enough slope data samples in practical engineering. This study proposes a slope database generation method based on the LEM. Samples were amplified from 40 typical slopes, and a sample database consisting of 20000 slope samples was established. The sample database for slopes covered a wide range of slope geometries and soil layers’ physical and mechanical properties. The CNN trained with this sample database was then applied to the stability prediction of 15 real slopes to test the accuracy of the CNN model. The results show that the slope stability prediction method based on the CNN does not need complex calculation but only needs to provide the slope coordinate information and physical and mechanical parameters of the soil layers, and it can quickly obtain the safety factor and stability state of the slopes. Moreover, the prediction accuracy of the CNN trained by the sample database for slope stability analysis reaches more than 99%, and the comparisons with the BP neural network show that the CNN has significant superiority in slope stability evaluation. Therefore, the CNN can predict the safety factor of real slopes. In particular, the combination of typical actual slopes and generated slope data provides enough training and testing samples for the CNN, which improves the prediction speed and practicability of the CNN-based evaluation method in engineering practice.

关键词： slope stability limit equilibrium method convolutional neural network database for slopes big data