资源类型

期刊论文 140

会议视频 22

年份

2023 9

2022 18

2021 21

2020 17

2019 10

2018 7

2017 16

2016 11

2015 11

2014 4

2013 1

2012 3

2011 2

2010 3

2009 7

2008 5

2007 3

2006 2

2005 2

2004 3

展开 ︾

关键词

智能制造 8

大数据 5

信息技术 4

体系结构 3

发展战略 3

天基信息 2

实时服务 2

服役寿命 2

2022全球工程前沿 1

GIS 1

Grid service 1

HLA/RTI 1

JavaBeans 1

LASC 1

P2P网络 1

PMI 1

PPP融资 1

SOAP 1

Web Service 1

展开 ︾

检索范围:

排序: 展示方式:

地理信息系统的发展与发展中的地理信息系统

王家耀

《中国工程科学》 2009年 第11卷 第2期   页码 10-16

摘要: 探讨了随着计算机通信网络技术的发展而引起的GIS体系结构和软件 开发模式的变化,认为开放式GIS思想和组件式GIS更适合网络(网格)环境下数据服务和功能的服务分布式 特点;提出GIS将向以网络服务( Webservice)和网格服务( Grid service)为主要形式的开放式GIS方向发展,论 述了基于网络服务的地理信息共享与数据互操作的基本架构及其特点,指出Grid service为实现信息资源共享和协同解决问题提供了新的机遇和技术途径,强调Web service和Grid service的核心都是服务,两者既相互联 系又有区别。

关键词: GIS     体系结构     开发模式     Web service     Grid service    

基于Web服务的分布式仿真系统的双重访问控制

陈学勤,吴慧中,朱耀琴

《中国工程科学》 2009年 第11卷 第8期   页码 72-78

摘要:

随着分布式仿真系统与Web服务技术的结合日益紧密,以及功能与资源分离的愈加明显,导致大量仿真资源暴露于网络中,传统、单一的访问控制模型已无法应对

关键词: Web服务安全     双重访问控制     分布式仿真系统    

智能楼宇远程监控系统的数据交互研究

段敬民, 王英, 宋永恒, 常辉

《中国工程科学》 2008年 第10卷 第8期   页码 73-75

摘要:

楼宇的智能化体现了智能在楼宇控制中的应用,合理采用控制方法对建筑的智能化有着更高的保障,同时也带来了个性化。主要讨论了在远程控制智能楼宇中分布式技术交互的理论,并构造了一个高效的分布式控制网络数据交互服务端。

关键词: 智能楼宇     数据接口     分布式     Web Service    

Finite element analysis and structural design of pretensioned inverted T-beams with web openings

Hock Tian CHENG, Bashar S. MOHAMMED, Kamal Nasharuddin MUSTAPHA

《结构与土木工程前沿(英文)》 2009年 第3卷 第2期   页码 148-157 doi: 10.1007/s11709-009-0030-5

摘要: This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. Opening size and placement and required materials strengths were investigated. In this paper the nonlinear analysis and design of simply supported pretensioned inverted T-beam with circular web openings are presented. Two design parameters are varied: opening location and number of openings. The results from nonlinear finite element analysis were substantiated by test results from five pretensioned inverted T-beams with web opening and one solid beam. Good agreement is shown between the theoretical and the experimental results. The test results obtained from this investigation show that the performance of the specimens with web openings is almost identical to that of the specimen without web openings. A simple design method for pretensioned inverted T-beam with circular web openings is proposed.

关键词: prestressed concrete     inverted-T beam     web opening    

Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

《结构与土木工程前沿(英文)》 2016年 第10卷 第4期   页码 409-419 doi: 10.1007/s11709-016-0358-6

摘要: A triangular web profile (TriWP) is a modified section where the flanges are connected to a web plate of triangular profile. This study examined the torsional behavior of TriWP steel sections and compared to that of the flat web (FW) steel sections. Three types of specimen sizes were used: 180 mm × 75 mm × 5 mm × 2 mm, 200 mm × 100 mm × 8 mm × 6 mm, and 200 mm × 100 mm × 6 mm × 5 mm. All the specimens were loaded vertically until the maximum load was achieved and then the load was released. For both types of specimens, it was observed that the torsional rotation for bigger size [200 mm × 100 mm × 8 mm × 6 mm] were smaller than that of smaller size [180 mm × 75 mm × 5 mm × 2 mm] of the specimens. At the maximum torsional loading, the experimental result was compared to the theoretical calculation. The comparison showed that the percentage difference ranged from 1.10% to 16.80%. From the graph of torsional load versus rotational angle, the torsional rotation for all TriWP steel sections were smaller than that of the FW steel section under the same torsional loading i.e., 0.2 kNm and 1 kNm. The range between FW and TriWP were 3.74 to 71.83 at 0.2 kNm while 14.5 to 75.1 at 1.0 kNm. The findings were shown that the TriWP steel sections had better resistance against torsion in comparison to FW steel section.

关键词: corrugated web     i-beam     non uniform steel section     torsion resistance     torsion angle     triangular web profile steel section    

Experimental study on shear behavior of reinforced concrete beams with web horizontal reinforcement

Dong XU,Yu ZHAO,Chao LIU

《结构与土木工程前沿(英文)》 2014年 第8卷 第4期   页码 325-336 doi: 10.1007/s11709-014-0080-1

摘要: In determining the shear capacity of reinforced concrete beams, current codes do not provide any calculation method to evaluate the influence of web horizontal reinforcement, although they exist as structural reinforcements (or skin reinforcement). The present paper comprises results of 11 reinforced concrete beams in an effort to investigate the influence of web horizontal reinforcement on the shear behavior of reinforced concrete beams. The primary design variables are the shear-span-depth ratio, different reinforcement ratio of stirrups and web horizontal reinforcement. Influence of web horizontal reinforcement on crack patterns and failure mode was studied. It was found that web horizontal reinforcement can increase the shear capacity of the beams and restrain growth of inclined cracks effectively. Test results are very valuable, as very few references of shear tests can be found focusing on the effect of web horizontal reinforcement on the shear capacity of the beams.

关键词: reinforced concrete beam     shear strength     web horizontal reinforcement     experiments    

Robust optimization of the billet for isothermal local loading transitional region of a Ti-alloy rib-web

Ke WEI, Xiaoguang FAN, Mei ZHAN, Miao MENG

《机械工程前沿(英文)》 2018年 第13卷 第3期   页码 376-384 doi: 10.1007/s11465-018-0500-3

摘要:

Billet optimization can greatly improve the forming quality of the transitional region in the isothermal local loading forming (ILLF) of large-scale Ti-alloy rib-web components. However, the final quality of the transitional region may be deteriorated by uncontrollable factors, such as the manufacturing tolerance of the preforming billet, fluctuation of the stroke length, and friction factor. Thus, a dual-response surface method (RSM)-based robust optimization of the billet was proposed to address the uncontrollable factors in transitional region of the ILLF. Given that the die underfilling and folding defect are two key factors that influence the forming quality of the transitional region, minimizing the mean and standard deviation of the die underfilling rate and avoiding folding defect were defined as the objective function and constraint condition in robust optimization. Then, the cross array design was constructed, a dual-RSM model was established for the mean and standard deviation of the die underfilling rate by considering the size parameters of the billet and uncontrollable factors. Subsequently, an optimum solution was derived to achieve the robust optimization of the billet. A case study on robust optimization was conducted. Good results were attained for improving the die filling and avoiding folding defect, suggesting that the robust optimization of the billet in the transitional region of the ILLF was efficient and reliable.

关键词: isothermal local loading forming     rib-web component     transitional region     robust optimization     dual response surface method    

共享信息的第二类网络

李幼平

《中国工程科学》 2002年 第4卷 第8期   页码 8-11

摘要:

基于Internet的万维网是当代共享信息的原创网络(primary web) ,它是一种隐含冲突的系统,难以摆脱带宽瓶颈的困扰,不支持用户数量的自由增长。提出的第二类信息共享网络(secondary web),通过广播镜像把许多网站的完整内容收存于家庭,然后按内容的语义直接提取满足个性需求的读物。

关键词: 万维网     第二类共享网络     内容的语义     带宽瓶颈    

使用信息流分析检测Web服务组合隐性信息泄露 None

Jia-xin JIANG, Zhi-qiu HUANG, Wei-wei MA, Yan CAO

《信息与电子工程前沿(英文)》 2018年 第19卷 第4期   页码 494-502 doi: 10.1631/FITEE.1601371

摘要: 信息泄露会破坏Web服务组合业务流程对某些策略的遵从性,是Web服务组合中的一个主要问题。提出一种基于信息流分析的有效的自动化方法用于检测业务流程执行语言(BPEL)中的隐性信息泄露。以Petri网中基于库所的无干扰性概念为基础,使用Petri网可达图分析Petri网干扰性,检测Web服务组合中的隐性信息泄露,并通过一个案例说明该方法在具体BPEL工作流中的应用。

关键词: 信息流分析;业务流程执行语言;Petri网;干扰性    

A sampling method based on URL clustering for fast web accessibility evaluation

Meng-ni ZHANG,Can WANG,Jia-jun BU,Zhi YU,Yu ZHOU,Chun CHEN

《信息与电子工程前沿(英文)》 2015年 第16卷 第6期   页码 449-456 doi: 10.1631/FITEE.1400377

摘要: When evaluating the accessibility of a large website, we rely on sampling methods to reduce the cost of evaluation. This may lead to a biased evaluation when the distribution of checkpoint violations in a website is skewed and the selected samples do not provide a good representation of the entire website. To improve sampling quality, stratified sampling methods first cluster web pages in a site and then draw samples from each cluster. In existing stratified sampling methods, however, all the pages in a website need to be analyzed for clustering, causing huge I/O and computation costs. To address this issue, we propose a novel page sampling method based on URL clustering for web accessibility evaluation, namely URLSamp. Using only the URL information for stratified page sampling, URLSamp can efficiently scale to large websites. Meanwhile, by exploiting similarities in URL patterns, URLSamp cluster pages by their generating scripts and can thus effectively detect accessibility problems from web page templates. We use a data set of 45 web sites to validate our method. Experimental results show that our URLSamp method is both effective and efficient for web accessibility evaluation.

关键词: Page sampling     URL clustering     Web accessibility evaluation    

Ultimate load analysis of pretensioned inverted T-beams with circular web openings

Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,

《结构与土木工程前沿(英文)》 2009年 第3卷 第3期   页码 262-271 doi: 10.1007/s11709-009-0031-4

摘要: The provision of transverse openings in floor beams to facilitate the passage of utility pipes and service ducts not only results in a more systematic layout of pipes and ducts, it also translates into substantial economic savings in the construction of a multi-storey building. In this paper, ultimate load analysis of statically loaded simply supported pretensioned inverted T-beams with circular web openings is presented. Major findings relevant to ultimate load analysis of pretensioned beams with circular web openings are summarized. An attempt has been made to answer the frequently asked questions related to ultimate load analysis on multiple circular web openings. It has been shown that the analysis method for pretensioned beams with multiple large circular web openings can be further simplified without sacrificing rationality.

关键词: pretensioned inverted T-beam     web opening    

服务供应链的信息共享机制及绩效研究

杨善林,程飞,杨昌辉

《中国工程科学》 2011年 第13卷 第8期   页码 80-86

摘要:

文章研究的服务供应链包含一个服务供应商和一个服务集成商信息共享机制问题。服务供应商提供原始服务产品或活动给服务集成商,而服务集成商依次以附加值集成服务出售给客户。在不确定性市场环境下,客户服务需求量带有价格敏感和随机性的特征。在服务供应商和服务集成商之间,探析服务供应链的不同信息传输方式下信息共享机制问题,评估服务供应链的绩效,其结果强调服务业开展信息共享的必要性。

关键词: service supply chain     service vendor     service integrator     information sharing     coordination    

RFES:一种面向移动Web3D的实时火灾逃生系统 Research Articles

Feng-ting YAN, Yong-hao HU, Jin-yuan JIA, Qing-hua GUO, He-hua ZHU, Zhi-geng PAN

《信息与电子工程前沿(英文)》 2019年 第20卷 第8期   页码 1061-1074 doi: 10.1631/FITEE.1700548

摘要: 基于Web3D构建公共消防疏散系统存在许多限制其计算能力的瓶颈。仿真结果表明,公众可在移动Web3D设备上实时、顺畅地进行消防疏散演练的交互和体验。

关键词: 消防疏散演习;建筑信息建模建筑空间;移动Web3D;基于蚁群优化算法的实时消防疏散系统    

HLA 分布仿真扩展研究

吴泽彬,吴慧中,李蔚清

《中国工程科学》 2008年 第10卷 第7期   页码 141-146

摘要:

分析HLA 扩展研究现状,针对HLA分布仿真互操作和重用的两个典型问题,结合Web 服务技术,将 传统HLA仿真应用框架进行去耦处理,提出一个

关键词: HLA/RTI     分布仿真     Web 服务     SOAP     体系结构    

Evolution and Frontier Analysis of Lean Construction Research—Integrated Scientometric Analysis using the Web

Qing-hua He,Ge Wang

《工程管理前沿(英文)》 2015年 第2卷 第2期   页码 141-147 doi: 10.15302/J-FEM-2015023

摘要: To develop a lean and green construction industry, Lean Construction (LC) is proposed as a new construction production method to improve the efficient use of resources and the value of construction supply chains, which has received increasing research concerns from scholars and practitioners. Based on related articles covered by the Web of Science and Scopus databases between 1995 and 2014, this study conducts a scientometric analysis. The analysis identifies four core topics in existing research, including: Last Planner System (LPS); production control theory; improvement and evaluation of productivity; and principle of value. Three major directions of LC research: greening LC; Building Information Modeling (BIM) based LC; and lean safety management, are also proposed. Lastly, several recommendations for future LC research and practice are provided in the literature review.

关键词: Lean Construction     green industry     efficient use    

标题 作者 时间 类型 操作

地理信息系统的发展与发展中的地理信息系统

王家耀

期刊论文

基于Web服务的分布式仿真系统的双重访问控制

陈学勤,吴慧中,朱耀琴

期刊论文

智能楼宇远程监控系统的数据交互研究

段敬民, 王英, 宋永恒, 常辉

期刊论文

Finite element analysis and structural design of pretensioned inverted T-beams with web openings

Hock Tian CHENG, Bashar S. MOHAMMED, Kamal Nasharuddin MUSTAPHA

期刊论文

Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

期刊论文

Experimental study on shear behavior of reinforced concrete beams with web horizontal reinforcement

Dong XU,Yu ZHAO,Chao LIU

期刊论文

Robust optimization of the billet for isothermal local loading transitional region of a Ti-alloy rib-web

Ke WEI, Xiaoguang FAN, Mei ZHAN, Miao MENG

期刊论文

共享信息的第二类网络

李幼平

期刊论文

使用信息流分析检测Web服务组合隐性信息泄露

Jia-xin JIANG, Zhi-qiu HUANG, Wei-wei MA, Yan CAO

期刊论文

A sampling method based on URL clustering for fast web accessibility evaluation

Meng-ni ZHANG,Can WANG,Jia-jun BU,Zhi YU,Yu ZHOU,Chun CHEN

期刊论文

Ultimate load analysis of pretensioned inverted T-beams with circular web openings

Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,

期刊论文

服务供应链的信息共享机制及绩效研究

杨善林,程飞,杨昌辉

期刊论文

RFES:一种面向移动Web3D的实时火灾逃生系统

Feng-ting YAN, Yong-hao HU, Jin-yuan JIA, Qing-hua GUO, He-hua ZHU, Zhi-geng PAN

期刊论文

HLA 分布仿真扩展研究

吴泽彬,吴慧中,李蔚清

期刊论文

Evolution and Frontier Analysis of Lean Construction Research—Integrated Scientometric Analysis using the Web

Qing-hua He,Ge Wang

期刊论文