نتایج جستجو برای: communication and traffic infrastructures

تعداد نتایج: 16879347  

Journal: :J. Network and Computer Applications 2010
Abdun Naser Mahmood Jiankun Hu Zahir Tari Christopher Leckie

Networked critical infrastructures are of national importance. However, such infrastructures are running 24/7. The supervisory control and data acquisition system (SCADA) of the critical infrastructure will generate enormous network traffic continuously. It is vital in such environments that only useful data are stored while redundant data are discarded to reduce the huge data storage demand. H...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1390

in one pole of the continuum of language learning, theoreticians and practitioners traditionally consider english as english as a second language or english as a foreign language. however, in the other pole of this continuum where english is thought of as the most effective tool for international communication, it is referred to as a lingua franca. those who favor an approach to english growing...

Journal: :Optical Switching and Networking 2011
Yi Zhang Massimo Tornatore Pulak Chowdhury Biswanath Mukherjee

The energy crisis and environmental protection are gaining increasing concern in recent years. ICT (Information and Communication Technology) has a significant impact on the total electricity consumption all over theworld. Telecomnetworks, being an important part of ICT, consume significant energy since more network equipment is deployed annually. Specifically, in IP-over-WDM networks, energy i...

Journal: :CoRR 2017
Roberto di Lallo Federico Griscioli Gabriele Lospoto Habib Mostafaei Maurizio Pizzonia Massimo Rimondini

In critical infrastructures, communication networks are used to exchange vital data among elements of Industrial Control Systems (ICSes). Due to the criticality of such systems and the increase of the cybersecurity risks in these contexts, best practices recommend the adoption of Intrusion Detection Systems (IDSes) as monitoring facilities. The choice of the positions of IDSes is crucial to mon...

Journal: :Scandinavian J. Inf. Systems 2002
Susan Leigh Star

By bringing together science studies, information science and ethnographic fieldwork in interdisciplinary research the author argues for the relevance of ethnographic practices when studying information systems as infrastructures of communication. Ethnographic fieldwork focuses attention on fringes and materialities of infrastructures and renders the researcher able to read the invisible layers...

2014
Shiva Prakash A. Mahapatra K. Anand C. Lu B. M. Blum T. F. Abdelzaher J. A. Stankovic Djamel Djenouri

Wireless sensor networks (WSNs) emerge as underlying infrastructures for new classes of large scale networked embedded systems. However, WSNs system designers must fulfill the QualityofService (QoS) requirements imposed by the applications (and users). Very harsh and dynamic physical environments and extremely limited resources are major obstacles for satisfying QoS metrics such as reliability,...

Journal: :مدیریت اطلاعات سلامت 0
فرخنده اسدی استادیار، مدیریت اطلاعات بهداشتی درمانی، دانشکده ی پیراپزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران حمید مقدسی دانشیار، مدیریت اطلاعات بهداشتی درمانی، دانشکده ی پیراپزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران اعظم السادات حسینی استادیار، مدیریت اطلاعات بهداشتی درمانی، دانشکده ی پیراپزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران سوسن عزیزی گندزلو دانشجوی کارشناسی ارشد، آموزش مدارک پزشکی، دانشکده ی پیراپزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران

introduction: non-integrated health information has forced health sector to utilize information and communication technology (ict). national health information infrastructure (nhii) integrates clinical and health information, decreases medical errors as well as costs, and increases patient’s safety. thus, this article aimed to review the feasibility of nhii implementation in iran from perspecti...

2010
Heiko Roßnagel Olaf Junker

Large public events such as sporting events, concerts, fairs and street festivals are quite common in metropolitan areas. Because of the high frequency of such events and the increasing number of involved parties, those being responsible for the organization and execution have to cope with increasing complexity and shortening time frames for planning and preperation. Because of the high concent...

2016
Angelos K. Marnerides Dimitrios P. Pezaros Joemon Jose Andreas U. Mauthe David Hutchison

Computer network infrastructures constitute the critical backbone of every socio-economic ICT system. Consequently, they are becoming increasingly mission-critical in our society since they provide always-on services for many everyday applications (e.g., Cloud Data Centres), safety-critical operations (e.g., Air Traffic Control networks), critical manufacturing services (e.g., Utility networks ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Christian M. Schneider André A. Moreira José S. Andrade Shlomo Havlin Hans J. Herrmann

Terrorist attacks on transportation networks have traumatized modern societies. With a single blast, it has become possible to paralyze airline traffic, electric power supply, ground transportation or Internet communication. How and at which cost can one restructure the network such that it will become more robust against a malicious attack? We introduce a new measure for robustness and use it ...

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