全文获取类型
收费全文 | 322篇 |
免费 | 38篇 |
国内免费 | 23篇 |
专业分类
电工技术 | 20篇 |
综合类 | 43篇 |
化学工业 | 15篇 |
金属工艺 | 8篇 |
机械仪表 | 7篇 |
建筑科学 | 90篇 |
矿业工程 | 1篇 |
能源动力 | 3篇 |
轻工业 | 4篇 |
石油天然气 | 1篇 |
无线电 | 14篇 |
一般工业技术 | 28篇 |
冶金工业 | 5篇 |
原子能技术 | 17篇 |
自动化技术 | 127篇 |
出版年
2022年 | 4篇 |
2021年 | 7篇 |
2020年 | 7篇 |
2019年 | 5篇 |
2018年 | 3篇 |
2017年 | 6篇 |
2016年 | 9篇 |
2015年 | 13篇 |
2014年 | 16篇 |
2013年 | 13篇 |
2012年 | 21篇 |
2011年 | 28篇 |
2010年 | 19篇 |
2009年 | 17篇 |
2008年 | 19篇 |
2007年 | 23篇 |
2006年 | 16篇 |
2005年 | 20篇 |
2004年 | 20篇 |
2003年 | 28篇 |
2002年 | 25篇 |
2001年 | 16篇 |
2000年 | 14篇 |
1999年 | 10篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1980年 | 1篇 |
排序方式: 共有383条查询结果,搜索用时 15 毫秒
1.
The microstructure and hardness of the HAZ in a 800 MPa grade ultra-low-carbon microalloyed steel were studied.The results indicate that the heat affected zone (HAZ) of the RPC (Relaxation- Precipitation- Controlling) steel possesses a continuous gradient structure, and can be classified into three zones, i. e. CGHAZ ( coarse-grain HAZ ) , FGHAZ (fine-grain HAZ ) and ICHAZ ( intercritical temperature HAZ ). The microstructures in the HAZ are all composed of bainite-like structure.The microstructare in the CGHAZ mainly consists of lath-like bainite and granular bainite . The influences of heat input and t8/5 on the hardness in the HAZ of RPC steel are notable. With the increase of heat input and t8/5, the softening tendency of HAZ becomes obvious. The hardening phenomenon that normally occurs in the CGHAZ does not take place with this steel in the range of experimental conditions. The softening in the ICHAZ is bound to occur. Hence appropriate welding technologies need to be selected. 相似文献
2.
文章从分析系统集成策略对信息系统研究和发展的重要作用入手,阐述了建立通用一致应用系统集成框架的重要性,并给出基于CORBA规范的集成框架总体结构及实现策略;在此基础上实现了RPC部件的包装集成,并对遇到的关键技术问题进行论述。 相似文献
3.
SOAP中的远程过程调用 总被引:8,自引:0,他引:8
为了实现异构系统的互操作,进而构造Internet环境的高适应性的统一计算环境,介绍了利用SOAP进行远程过程调用的方法,并比较与其它近似目的的方法的优劣。 相似文献
4.
SOA(Service Oriented Architecture)技术无疑为下一代企业分布式架构的趋势,但是很多人目前还无法准确把握SOA的概念。本文旨在帮助读者认清SOA与Web Service(Web服务)的本质区别。文章从分布式计算的发展历程出发,说明Web Service与SOA的出现背景及本质区别。 相似文献
5.
Yoshihiro Nakajima Mitsuhisa Sato Yoshiaki Aida Taisuke Boku Franck Cappello 《Journal of Grid Computing》2008,6(2):141-157
We present a framework for a parallel programming model by remote procedure calls, which bridge large-scale computing resource
pools managed by multiple Grid-enabled job scheduling systems. With this system, the user can exploit not only remote servers
and clusters, but also the computing resources provided by Grid-enabled job scheduling systems located on different sites.
This framework requires a Grid remote procedure call (RPC) system to decouple the computation in a remote node from the Grid
RPC mechanism and uses document-based communication rather than connection-based communication. We implemented the proposed
framework as an extension of the OmniRPC system, which is a Grid RPC system for parallel programming. We designed a general
interface to easily adapt the OmniRPC system to various Grid-enabled job scheduling systems, including XtremWeb, CyberGRIP,
Condor and Grid Engine. We show the preliminary performance of these implementations using a phylogenetic application. We
found that the proposed system can achieve approximately the same performance as OmniRPC and can handle interruptions in worker
programs on remote nodes.
Yoshihiro Nakajima is a Research Fellow of the Japan Society for the Promotion of Science 相似文献
6.
客户机/分布式服务器系统模型中的RPC通信设计 总被引:1,自引:0,他引:1
本文详细给出了客户机/分布式服务器系统模型中RPC通信的设计,其中包括客户机/分布式服务器系统模型的提出、基于该模型的RPC通信设计要解决的问题、该模型下RPC通信的设计思路、设计框图、设计对服务器方RPC应用程序的要求、接受客户机调度请求的服务器地址的指定、设计中涉及的关键问题及解决方法等。 相似文献
7.
8.
9.
Refinement of packet size in low carbon bainitic steel by special thermo-mechanical control process 总被引:1,自引:0,他引:1
ChengjiaShang XueminWang ShanwuYang XinlaiHe 《北京科技大学学报(英文版)》2004,11(3):221-224
The packet size of bainitic steel can be refined by a special relaxation-precipitation-control phase transformation (RPC) technology, When processed by RPC process, the low carbon bainitic steel composes of two kinds of main intermediate transformation phases. One is ultra-fine lath-like bainitic ferrite and the lath is less than 1 tam in width and about 6 tam in length; the alignment of laths forms a refined packet, and the size of packets is about 5-7 ~am in length and about 3-4 tam in width, The other is acicular structure. The morphology and distribution of these acicular structures are influenced by relaxation process, the thin and short acicular structures cut the prior austenite grain and refine the bainitic packet size, For the optimum relaxation time, the packet size can be refined to the finest. The mechanical properties are influenced by relaxation time and the 800 MPa grade low carbon bainitic steel with excellent toughness can be obtained by RPC process, 相似文献
10.
为实现将仪器接入网络的目的,采用Microsoft的RPC开发工具包,TCP/IP-IEEE488.1接口规范进行了软件实现.利用该软件,配合带有IEEE488.1接口的仪器,在以太网内对滤波器幅/频特性进行了自动测试.结果表明,基于RPC开发的网络化自动测试系统运行稳定、可扩展性好. 相似文献