检索结果-南通市图书馆

A new impedance and robust adaptive inverse control approach for a teleoperation system with varying time delay

Science China(Technological Sciences) 2009年第9期52卷 2629-2643页

作者： Mokhtar sha SADEGHi Hamid reza MOMENi Electrical and Electronic Engineering Department Shiraz University of TechnologyShiraz Iran Electrical Engineering Department Faculty of Engineering Tarbiat Modares UniversityTehran Iran

This paper presents a new robust adaptive inverse control approach for a force-reflecting teleoperation system with varying time delay. First,an impedance control is designed for the master robot. Second,an adaptive inverse control is proposed for the slave robot. Finally,the slave side controller is modified such that the robust stability and performance are achieved. in addition,robust stability analysis has been performed and optimal behavior is ensured by using standard characteristic polynomials. it is shown that despite of presence of randomly-varying time delay,the proposed control algorithm compensates the position drifts efficiently. Demonstrable simulation studies confirm the effectiveness of the proposed control system and its advantages over the existing sliding mode control strategies.

关键词： teleoperation bilateral force feedback adaptive inverse control time delay system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Letter to the editor regarding "Galen’s place in Avicenna’s The Canon of Medicine: Respect,confirmation and criticism"

引用

Journal of integrative Medicine 2020年第3期18卷 274-274页

作者： Mostafa Araj-Khodaei Javad Ghazi-sha’rbaf Somaiyeh Taheri-Targhi reza Mohammadinasab Department of Persian Medicine School of Traditional MedicineTabrizUniversity of Medical SciencesTabriz ***Iran Department of islamic History&Civilization Faculty of TheologyAzarbaijan Shahid Madani UniversityTabriz ***Iran Aging Research institute Tabriz University of Medical SciencesTabriz***Iran Department of History of Medicine School of Traditional MedicineTabriz University of Medical SciencesTabriz ***Iran

We have read the article entitled "Galen’s place in Avicenna’s The Canon of Medicine: Respect, confirmation and criticism."(online available: 15 November 2019) [1]. We want to congratulate the authors for this successful review article and make some *** article explains that Avicenna mentioned Galen in his famous medical book—The Cannon of Medicine, in detail.

关键词： Galen’s place in Avicenna’s The Canon of Medicine Letter to the editor regarding Respect,confirmation and criticism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Diffusion Analysis of Message Expansion in STiTCH-256

引用

Journal of information Security 2013年第3期4卷 129-137页

作者： Norziana Jamil Ramlan Mahmod Muhammad reza Z’aba Nur izura Udzir Zuriati Ahmad Zukarnain College of information Technology Universiti Tenaga Nasional Kajang Malaysia Cryptography Lab MIMOS Berhad Technology Park Malaysia Bukit Jalil Malaysia Faculty of Computer Science and information Technology Universiti Putra Malaysia Seri Kembangan Malaysia

Cryptographic hash functions are built up from individual components, namely pre-processing, step transformation, and final processing. Some of the hash functions, such as sha-256 and STiTCH-256, employ non-linear message expansion in their pre-processing stage. However, STiTCH-256 was claimed to produce high diffusion in its message expansion. in a cryptographic algorithm, high diffusion is desirable as it helps prevent an attacker finding collision-producing differences, which would allow one to find collisions of the whole function without resorting to a brute force search. in this paper, we analyzed the diffusion property of message expansion of STiTCH-256 by observing the effect of a single bit difference over the output bits, and compare the result with that of sha-256. We repeated the same procedure in 3 experiments of different round. The results from the experiments showed that the minimal weight in the message expansion of STiTCH-256 is very much lower than that in the message expansion of sha-256, i.e. message expansion of STiTCH-256 produce high diffusion. Significantly, we showed that the probability to construct differential characteristic in the message expansion of STiTCH-256 is reduced.

关键词： STiTCH-256 Message Expansion Diffusion Hash Function

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：