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2003-2022 全部
为您找到包含“security”的内容共3035

张和

2007-12-27

集中式认证授权机制是根据业界标准WS-Security和SAML规范而建立的,以便于今后系统扩展和与其它异构系统的集成。本文简要介绍了面向服务的架构(Service-Oriented

北京邮电大学计算机科学与技术学院

#计算机科学技术#

0评论(0 分享(0)

Ali Ahmed Hassabo

mismanagement. The research recommended impacting the ideal husbandry practice and bio-security packages so as to

2010-03-25

Al Neelain University

#Animal Husbandry, Veterinary Medicine#

0评论(0 分享(0)

LIU Kun,LIAO Hua,HU Youyi,LEI Juzhang

In this paper, the plasma water treatment technology can degrade high concentrations of refractory organic wastewater efficiently, with the advantage of no additives, and no secondary pollution and it has become a research hotspot in recent years. According to the phase state participated by the mediators, the plasma water treatment technology can be divided into three categories: gas phase electrical discharge, liquid phase electrical discharge, and gas-liquid mixed phase electrical discharge water treatment. According to the above classification, not only the development course of the plasma water treatment technology has been deeply analyzed, but also the structure, the work principle and the treatment effect of several representative devices in latest researches has been introduced in this paper. Through the analysis of this article, it has been found that the most difficult problem for the plasma water treatment technology is how to promote its industrialization process, improving the amount of water treatment in specified unit of time, which will be a huge challenge for us.

2016-06-07

visiting scholars of state key laboratory of power transmission equipment &system security and new technology(NO. 2007DA10512712401

Chongqing University, The State Key Laboratory of Power Transmission Equipment & System Security

#Dynamic and Electronic Engineering#

0评论(0 分享(0)

LIU Kun,WANG Chenying,LIAO Hua,HU Huimin

In this paper, To determine the effects of the factors such as electrode position, velocity and voltage on electrical characteristics of needle-ring atmosphere helium plasma jet, a jet device was designed in this study. The experimental results showed that: the stable positive current "multi-pulse" could be achieved, with three pulses at most and the larger the H valve (distance between ground electrode and nozzle) is, the earlier the positive current "multi-pulse" appeared; with the increase of H value, the amplitude of positive current impulse becomes higher; when H was 28 mm, in the stage of positive multi-pulse, displacement current in bulge form presented at the negative direction, and with the decrease of H value, the negative current pulse gradually appeared. Furthermore, the change of helium flow had little effect on the power of atmospheric pressure plasma jet under fixed voltage, however the power increased with the increase of H value; under the same voltage, with the increase of helium flow, jet length firstly increased to the maximum value, then decreased and stabilized; when H value increased, jet length presented a decreasing trend. We have also proposed a mechanism of the above experimental phenomena.

2016-06-07

the Visiting Scholarship of State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University)

Chongqing University, The State Key Laboratory of Power Transmission Equipment & System Security

#Dynamic and Electronic Engineering#

0评论(0 分享(0)

Shixiong Zhang,Xiufeng Bao ,Lei Wang

A complicated problem faced by organizations is how to balance their potential opportunity costs against the expense of securing their IT infrastructure (preventative defensive measures). The primary goal of this paper is to minimize the costs when we implement preventive defensive measures in a new university campus or enterprise. On the basic assumption that the opportunity costs function are all inverse proportion functions, and with our introduction of 0-1 variables to represent different defensive measure, we constructed an non-linear, restricted optimal model (see formula (10)) to obtain a minimum costs. With the help of the mathematic software LINGO we got the minimum costs and determined the corresponding politic and technical defensive measures.

2004-10-06

Jilin University,Jilin University,Jilin University

#Mathematics#

0评论(0 分享(0)

Zhou Wei ,Lin Lihong ,Chen Xiaoan ,He Ye

Access control is an important composing part of information security. Aimed at the characteristics

2008-01-24

the Specialized Research Fund for the Doctoral Program of Higher Education(20040611006

China(0

College of Mechanical Engineering, Chongqing University,College of Mechanical Engineering, Chongqing University,State Key Lab of Mechanical Transmissions,Chongqing University,State Key Lab of Mechanical Transmissions,Chongqing University

#Mechanical Engineering#

0评论(0 分享(0)

李强,孟祥武

2007-12-17

本文提出了一种通过扩展Acegi Security技术构建基于Spring Framework 的Web应用安全的方法。该方法可以为Web应用程序提供URL级的动态认证授权机制,使业务逻辑和安全检查

北京邮电大学计算机科学与技术学院,北京邮电大学计算机科学与技术学院

#计算机科学技术#

0评论(0 分享(0)

刘铭,杨正球

2011-12-09

对Web服务规范(WS-Security)中的用户名令牌方法进行了深入研究,由于该方法存在一定的缺陷,因此提出了一种基于用户名令牌及数字签名的WEB服务安全认证方法。该方法通过运用SHA-1和MAC

北京邮电大学计算机学院,北京 100876,北京邮电大学计算机学院,北京 100876

#计算机科学技术#

0评论(0 分享(0)