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期刊论文 25

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信息物理系统;软件工具箱;预实体化设计;系统表现特征;仓库;数据库图式;基因型系统表现特征;表型系统表现特征;实例系统表现特征;信息模式构造 1

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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 1

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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    

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

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    

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    

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    

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)    

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    

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    

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    

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    

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    

具有冗余结构的分布式数据库服务器及其负载平衡模型

田俊峰,刘玉玲,杜瑞忠

《中国工程科学》 2004年 第6卷 第6期   页码 35-42

摘要:

服务器冗余技术在解决传统分布式环境的可用性和性能瓶颈问题的同时给系统的管理带来了新的挑战。介绍了一种分布式数据库服务器的构成原理及工作模型,重点讨论了它的冗余关系、基于移动代理的负载平衡模型及其性能分析等。

关键词: 分布式数据库     冗余     负载平衡     移动代理     性能分析    

Process Planning Support System for Green Manufacturing and its application

HE Yan, LIU Fei, CAO Huajun, ZHANG Hua

《机械工程前沿(英文)》 2007年 第2卷 第1期   页码 104-109 doi: 10.1007/s11465-007-0018-6

摘要: Owing to a lack of practical methods and software tools in the existing researches on green manufacturing (GM), process planning support system for green manufacturing (GMPPSS) was developed to deal with the problems in optimization of environment-benign process planning. The GMPPSS consisted mainly of three function modules and related model repositories including: selection of process elements, optimization of process courses, and evaluation of process projects for GM. The database of the GMPPSS was used to provide plentiful information on resources consumption and environmental impact in manufacturing processes, which consisted of process attribute database, inventory database, machine database, tool database, and the cutting fluid database. Raw materials, secondary material consumption, energy consumption, and environment impacts of process planning were optimized to improve the green attribute of process planning of parts with the supports of the databases and model repositories. The gear processing in the machining tool factory was presented to verify the system s applicability.

关键词: environment     selection     GMPPSS     consumption     database    

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    

Smart model for accurate estimation of solar radiation

Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR

《能源前沿(英文)》 2020年 第14卷 第2期   页码 383-399 doi: 10.1007/s11708-017-0505-3

摘要: Prediction of solar radiation has drawn increasing attention in the recent years. This is because of the lack of solar radiation measurement stations. In the present work, 14 solar radiation models have been used to assess monthly global solar radiation on a horizontal surface as function of three parameters: extraterrestrial solar irradiance ( ), duration sunshine ( ) and daylight hours ( ). Since it has been observed that each model is adequate for some months of the year, one model cannot be used for the prediction of the whole year. Therefore, a smart hybrid system is proposed which selects, based on the intelligent rules, the most suitable prediction model of the 14 models listed in this study. For the test and evaluation of the proposed models, Tamanrasset city, which is located in the south of Algeria, is selected for this study. The meteorological data sets of five years (2000–2004) have been collected from the Algerian National Office of Meteorology (NOM), and two spatial databases. The results indicate that the new hybrid model is capable of predicting the monthly global solar radiation, which offers an excellent measuring accuracy of values ranging from 93% to 97% in this location.

关键词: global solar radiation     statistical indicator     hybrid model     spatial database     correlation coefficients    

标题 作者 时间 类型 操作

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

Kejun XIANG, Zhanqiang LIU, Xing AI

期刊论文

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

null

期刊论文

Intelligent high-speed cutting database system development

XIANG Kejun, LIU Zhanqiang, AI Xing

期刊论文

Research on integrating customization design for mechanical product

TAI Ligang, LI Dianqi, ZHONG Tingxiu, LI Zhi

期刊论文

ARGs-OAP v3.0——抗生素耐药基因数据库的筛选和分析流程优化

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

期刊论文

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

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

期刊论文

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

期刊论文

Review of research and development of computer-aided Kansei Engineering

Li LIN, Chengqi XUE

期刊论文

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

Huafeng DING, Zhen HUANG

期刊论文

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,

期刊论文

Slope stability analysis based on big data and convolutional neural network

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

期刊论文

具有冗余结构的分布式数据库服务器及其负载平衡模型

田俊峰,刘玉玲,杜瑞忠

期刊论文

Process Planning Support System for Green Manufacturing and its application

HE Yan, LIU Fei, CAO Huajun, ZHANG Hua

期刊论文

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

期刊论文

Smart model for accurate estimation of solar radiation

Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR

期刊论文