检索结果-内蒙古大学图书馆

International Conference on computer science and Information Technology (CSIT)

作者： Hossein Rouhani Zeidanloo Mohammad Jorjor Zadeh Shooshtari Payam Vahdani Amoli M. Safari Mazdak Zamani Faculty of Computer Science and Information System University of Technology Kuala Lumpur Malaysia Industrial Engineering Department Amirkabir University of Technology슠 Tehran Iran

Among the diverse forms of malware, Botnet is the most widespread and serious threat which occurs commonly in today's cyber attacks. Botnets are collections of compromised computers which are remotely controlled by its originator (BotMaster) under a common Commond-and-Control (C&C) infrastructure. They provide a distributed platform for several illegal activities such as launching distributed denial of service (DDOS) attacks against critical targets, malware distribution, phishing, and click fraud. Most of the existing Botnet detection approaches concentrate only on particular Botnet command and control (C&C) protocols (e.g., IRC, HTTP) and structures (e.g., centralized), and can become ineffective as Botnets change their structure and C&C techniques. The detection of Botnet has been a major research topic in recent years. Different techniques and approaches have been proposed for detection and tracking of Botnet. This survey classifies Botnet detection techniques into two approaches. One approach is based on setting up honeynets and another approach is based on Intrusion Detection system( IDS) which has been categorized into signature-based and anomaly-based detection techniques.

关键词： Monitoring Computational modeling computers Cryptography

来源：评论

学校读者我要写书评

暂无评论

Modern development of low cost RT industrial process control based on Matlab-Simulink and PAC

Modern development of low cost RT industrial process control...

引用

Roedunet International Conference (RoEduNet)

作者： Michal Tutsch Petr Konarik Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava Czech Republic Department of Control System and Instrumentation Faculty of Mechanical Engineering VSB-Technical University of Ostrava Ostrava Czech Republic

The paper presents modern advanced development methods of control systems that minimizes the cost of development of applications which are widely applicable in industrial control of whole range of processes.

ISBN: (纸本)9781424473359

关键词： Costs Industrial control Process control computer languages

来源：评论

学校读者我要写书评

暂无评论

Wideband, fast, and wide-dynamic-range spectrum sensing using dual-stage spectrum detection

Wideband, fast, and wide-dynamic-range spectrum sensing usin...

引用

IEEE Radio and Wireless Symposium (RWS formerly RAWCON)

作者： Hiroyuki Abe Yohtaro Umeda Osamu Takyu Takeo Fujii Masao Nakagawa Department of Electrical Engineering Faculty of Science and Technology Tokyo University of Science Japan Advanced Wireless Communication Research Center (AWCC) University of Electro-Communications Japan Department of Information and Computer Science Faculty of Science and Technology Keio University Japan

ISBN: (纸本)9781424447251

Cognitive radio is considered as the highly promising solution to the shortage problem of the frequency resource. In this report, we propose the dual-stage spectrum detection method for achieving the wideband, fast, and wide-dynamic-range spectrum detection. In addition, the success probability of detecting the vacant frequency spectrum and the detection time of it are evaluated by computer simulation. As a result, the simulation shows that the dual-stage spectrum detection method can achieve a highly successful probability of detecting vacant frequency spectrum as well as a small detection time. Therefore, the proposed detection method can be expected to establish high-speed spectrum detection in cognitive radio.

关键词： Wideband Frequency Cognitive radio Signal detection Wireless communication Dynamic range computer science computer simulation Computational modeling Detectors

来源：评论

学校读者我要写书评

暂无评论

Urea monitor based on chemiluminescence and electrolysis as a marker for dialysis efficiency

引用

IEEJ Transactions on Sensors and Micromachines 2010年第1期130卷 11-16页

作者： Ozaki, Masahiro Okabayashi, Tohru Ishimaru, Teppei Hayashi, Kunihito Hori, JuN'Ya Yamamoto, Isao Nakagawa, Masuo Department of Applied Physics Faculty of Science Okayama University of Science 1-1 Ridai-cho Okayama 700-0005 Japan Department of Disaster System Science Faculty of Risk and Crisis Management Chiba Institute of Science 3 Shiomi-cho Choshi 288-0005 Japan Department of Clinical Engineering Sumida Clinic 3-3-113 Chu-o Soja719-1131 Japan Department of Information and Computer Engineering Faculty of Engineering Okayama University of Science 1-1 Ridai-cho Japan

We have developed a practical urea monitor based on a chemiluminescent (CL) reaction of urea and hypobromous acid produced by electrolysis of sodium bromide (NaBr) for measuring urea concentration in spent dialysate at set intervals. A reagent containing 4×10-2 M hypobromous acid is produced by electrolysis of an electrolyte containing 5.9 M NaBr and 0.2 M sodium hydroxide (NaOH). Chemiluminescence is emitted by injection of spent hemodialysis fluid (0.11 ml) into the reagent, and the CL-intensity is measured by a photomultiplier tube using the photon counting technique. The CL-intensity is proportional to the 0.9th power of the urea concentration between 7×10-4 and 2×10-2 M. The urea monitor can determine the urea concentration in spent dialysate samples collected from the waste line of a dialyzer, and the time for the intermittent measurements including the cleaning cycle of the reaction chamber is 3 min. The urea concentrations measured by the monitor are in close agreement with those measured by the conventional enzyme colorimetric method using urease for the spent dialysate collected during a hemodialysis treatment, and the correlation coefficient is 0.93. © 2010 the Institute of Electrical Engineers of Japan.

关键词： Urea

来源：评论

学校读者我要写书评

暂无评论

Color Image Segmentation Based on Adaptive Level Set and Region Statistical Information

Color Image Segmentation Based on Adaptive Level Set and Reg...

引用

Chinese Conference on Pattern Recognition (CCPR)

作者： Xi-li Wang Yuan Feng Department of Computer Science Shaanxi Normal University Xi'an China Research Center of Electron Communication System and Electron Antagonize Technique Air Force Engineering University Xi'an China

This paper proposed an adaptive level set algorithm combining region statistical information for color image segmentation. In this model, we deduce image segmentation model with Maximum a posteriori according to Bayesian theory, and combine it into GAC model. Firstly, construct a speed stop function based on region statistical information which combines region statistical character and Bayesian model. And apply it to image segmentation on color images. Secondly, construct alterable coefficient based on a posteriori of segmented image of inside and outside the curve. It aims to change evolution direction adaptively based on the information of image. Thirdly, eliminate the re-initialization procedure by introducing interior restrict energy term of the Li method. At the same time, simplify the definition of the initial level set function. Experimental results show that this method has the advantages of evolving adaptively and stable numerical solution, and can extract the real edge of object from color image efficiently, so that is an effective image segmentation method.

关键词： Bayesian methods Image segmentation Level set Color Adaptation model Electronic mail Atmospheric modeling

来源：评论

学校读者我要写书评

暂无评论

Time-scale domain characterization of nonstationary wideband vehicle-to-vehicle propagation channel

Time-scale domain characterization of nonstationary wideband...

引用

Asia-Pacific Conference on Applied Electromagnetics, APACE

作者： Uche A.K. Chude Okonkwo Siti Zaiton Mohd Hashim Razali Ngah N.F. Nanyan Tharek Abd. Rahman Wireless Communication Center (WCC) Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai Johor Malaysia Department of Software Engineering b Faculty of Computer Science & Information Systems Universiti Teknologi Malaysia Skudai Johor Malaysia

The design and deployment of efficient vehicle-to-vehicle (V2V) communications systems require the knowledge of the propagation channel in which it will operate. Due to the mobility of the transmitter/receiver terminals as well as the existence of dynamic scatterers, the V2V channel is nonstationary. To account for the nonstationarity, channel characterization methods that employs the non wide-sense stationary uncorrelated scattering (non-WSSUS) approach are often desired. More also the inadequacy of the Doppler shift operator to properly account for frequency variation effects by the wideband channel operator implies that the time-frequency characterization methods that employ the Doppler shift operator are not appropriate for wideband V2V channels. In this paper we present the time-scale domain characterization of the non-WSSUS channel which employs time scaling operator to account for frequency variation and also emphasizes on the non-stationary property of the channel. The non-WSSUS statistical property termed local sense stationary uncorrelated scattering (LSSUS) is employed. The effect of the channel nonstationarity on the channel capacity is also addressed. From the simulated example, it is inferred that the assumption of ergodic capacity depend on the number of available independent fades which invariably depend on the degree of the V2V channel nonstationarity.

关键词： Scattering Wideband Delay Time frequency analysis Correlation Wireless communication Mobile communication

来源：评论

学校读者我要写书评

暂无评论

Secure Hybrid communications for Medical Applications

Secure Hybrid Communications for Medical Applications

引用

International Conference on Broadband, Wireless Computing, communication and Applications (BWCCA)

作者： Arjan Durresi Mimoza Durresi Zeynep Salih Leonard Barolli Computer and Information Science Purdue School of Science USA Department of Pediatrics School of Medicine Indiana University-Purdue University Indianapolis Indianapolis USA Department of Information and Communication Engineering Faculty of Information Engineering Fukuoka Institute of Technology Fukuoka Japan

We explore the use of a hybrid and networked system for medical applications. In particular we are interested in monitoring the physiological data of newborn babies. The key element in our design is the use of cell phones as aggregating devices for the sensor collected information. Cell phones in particular enable secure communications with medical wireless sensors. We discuss a key distribution scheme among mobile cell phones and stationary networks of medical sensors. Our goal is to isolate and limit the security damages when nodes of a given sensor network are compromised. We show with simulation results the offered tradeoffs among security, connectivity and node memory.

关键词： Pediatrics Mobile communication Monitoring Cellular phones Blood Temperature measurement Biomedical monitoring

来源：评论

学校读者我要写书评

暂无评论

Grid and P2P Middleware for Scientific Computing systems

Grid and P2P Middleware for Scientific Computing Systems

引用

International Conference on Complex, Intelligent and Software Intensive systems, CISIS

作者： Fatos Xhafa Sabri Pllana Leonard Barolli Department of Computer Science and Information Systems Birkbeck University of London London UK Department of Scientific Computing Faculty of Computer Science University of Technology Vienna Vienna Austria Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan

ISBN: (纸本)9781424459179;9780769539676

Grid and P2P systems have achieved a notable success in the domain of scientific and engineering applications, which commonly demand considerable amounts of computational resources. However, Grid and P2P systems remain still difficult to be used by the domain scientists and engineers due to the inherent complexity of the corresponding middleware and the lack of adequate documentation. In this paper we survey recent developments of Grid and P2P middleware in the context of scientific computing systems. The differences on the approaches taken for Grid and P2P middleware as well as the common points of both paradigms are highlighted. In addition, we discuss the corresponding programming models, languages, and applications.

关键词： Middleware Scientific computing Grid computing Power engineering computing Distributed computing Application software computer science Documentation computer applications Parallel processing

来源：评论

学校读者我要写书评

暂无评论

Integration of RFID technology into reconfigurable aperture coupled patch array (RACPA) antenna system

Integration of RFID technology into reconfigurable aperture ...

引用

European Conference on Antennas and Propagation, EuCAP

作者： M. F. Jamlos T. A. Rahman M. R. Kamarudin M. T. Ali M. N. Md Tan M. A. Shamsudin P. Saad Wireless Communication Center (WCC) Universiti Teknologi Malaysia Johor Malaysia Faculty of Electrical Engineering(FKE) Universiti Teknologi Malaysia Johor Malaysia Faculty of Computer Science and Information System (FSKSM) Universiti Teknologi Malaysia Johor Malaysia

Localization and responded accordingly are the most challenging and important issues in reconfigurable microstrip antenna (RMA). Hence, the challenges of combining Radio Frequency Identification (RFID) technology into the RMA are outlined. Integrating RFID into RMA is very important in wireless communication systems since the technologies have the ability to predict exact location of the users. In this paper, discussion and analyze approaches relying on the received signal strength indicator (RSSI) had been done intensively. The received signal strength was measured with respect to distance. From this aspect, RSSI is believed could be used for evaluating distance between base station or central and RFID tags. The RFID tag was used in the system is responsible for the central to facilitate location tracking of the user. RSSI will provide the distance estimation and yield the real time localization of users. Based on certain level of RSSI, RMA will respond accordingly by supplying coverage around the area. RMA with PIN diodes switches enabled altering the radiation pattern electronically by microcontroller development board (MDB) which is responding to the RFID tag. Indirectly, this system has the ability to control degree of radiation pattern (narrower or broader) adaptively to the distance between central and the tag. Through an outdoor testing and deep analysis of RFID and RMA, a form of new system architecture that combines the two technologies is proposed and its feasibility, technical challenges are discussed thoroughly. Finally, the measurement and calculation results had shown the combination between these two technologies in producing a new method of RMA had proven successfully.

关键词： Radiofrequency identification Antenna arrays Aperture coupled antennas Aperture antennas RFID tags Microstrip antennas Antenna radiation patterns Microstrip antenna arrays Wireless communication Signal analysis

来源：评论

学校读者我要写书评

暂无评论

ENHANCED AUTOMATED INTRUSION PREVENTION IN NETWORK SECURITY

ENHANCED AUTOMATED INTRUSION PREVENTION IN NETWORK SECURITY

引用

2010 2nd International Conference on computer engineering and Technology(2010年第二届计算机工程与技术国际会议 ICCET 2010)

作者： Xiao Dong He Teck Chaw Ling Department of Data Communication and Engineering Guangzhou Civil Aviation College Guangzhou City Gua Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia

ISBN: (纸本)9781424463473

An automated Intrusion Prevention Mechanism (AIPM) which comprises the functionalities of IDS,IPS,and auto configuring network devices is proposed to enhance network security. AIPM is a mechanism that includes automated intrusion prevention function and automated analysis of intrusion messages function. In addition,the ability of automatically detecting and analyzing network traffic allows AIPM to detect malicious attacks in almost real time. Likewise,the ability of automatically analyzing intrusion messages and network configuration enable AIPM to build a topological view and locate the source of a malicious attack. Results from the case studies show that AIPM imposes lower overhead than conventional method,which queries all pre-defined routers to block every interface irrespective of where the attack is launched. In summary,AIPM which incorporates the functionalities of IDS/IPS offers network protection against potential malicious acts without incurring additional overheads as compare to the conventional method.

关键词： Network:Security:IDS:IPS:Intrusion

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：