نتایج جستجو برای: computer communication networks

تعداد نتایج: 1217632  

Journal: :journal of dentistry, tehran university of medical sciences 0
s. kumar post graduate student, department of preventive and community dentistry, darshan dental college and g. balasubramanyam senior lecturer, department of preventive and community dentistry, darshan dental college and hospit p. duraiswamy reader, department of preventive and community dentistry, darshan dental college and hospital, udaip s. kulkarni professor, department of preventive and community dentistry, darshan dental college and hospital, ud

objective: in dental and medical education, information and communication technology (ict) has been playing an important role and its use is rapidly increasing. in developing countries, however, information technology is still only available to a minority of health professionals. the present study aimed to assess the level of computer use among dental undergraduate students pursuing their caree...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

Journal: :پژوهشنامه پردازش و مدیریت اطلاعات 0
علیرضا گنجی alireza ganji  کارشناس ارشد کتابداری و اطلاع رسانی دانشگاه فردوسی مشهد

generally, this article deals with the challenges and solutions facing the internet security. first, the article discusses the following subjects: the security of communication and information networks, the importance of the networks, the networks security precedence internet and computers crimes, the beginning of computer crimes, classifying computer crimes as well as the solutions proposed to...

Journal: :journal of advances in computer engineering and technology 0
mohammadreza pourkiani department of information technology, science and research branch, islamic azad university sam jabbehdari department of computer engineering, tehran north branch, islamic azad university ahmad khademzadeh department of education and international cooperation, iran telecommunication research center

the intelligent transportation system (its) provides wireless and mobile communication between vehicles and infrastructure to improve the safety of transportation and make the journey more enjoyable. this system consists of many fixed and mobile nodes (vehicles, trains, vessels, air planes), wireless and wired telecommunication technologies to exchange information between mobile nodes or betwee...

Communication protocols issues are one of the effective factors in communicated networks performance. One of challenging problem in CMT-SCTP which sends data by multipath concurrently is Receive Buffer Blocking. This problem has important role in data transmission speed in computer networks. In this paper, we propose a control method based on fuzzy logic so that can solve Receive Buffer Blockin...

The Intelligent Transportation System (ITS) provides wireless and mobile communication between vehicles and infrastructure to improve the safety of transportation and make the journey more enjoyable. This system consists of many fixed and mobile nodes (Vehicles, Trains, Vessels, Air planes), Wireless and Wired Telecommunication Technologies to exchange information between mobile nodes or betwee...

Journal: :international journal of mathematical modelling and computations 0
deepak c. pandey g. b. pant university of ag. and technology, pantnagar, u. s. nagar, india india arun k. pal department of maths, stats and comp. science g. b. pant university of ag. and technology, pantnagar, u. s. nagar, india india

priority queues have a great importance in the study of computer communication networks in which different types of traffic require different quality of service standards. the discrete-time non-preemptive priority queuing model with priority jumps is proposed in this paper. on the basis of probability generating functions mean system contents and mean queuing delay characteristics are obtained....

Mobile ad hoc networks are networks composed of wireless devices to create a network with the ability for self-organization. These networks are designed as a new generation of computer networks to satisfy some specific requirements and with features different from wired networks. These networks have no fixed communication infrastructure and for communication with other nodes the intermediate no...

Routing in computer networks has played a special role in recent years. The cause of this is the role of routing in a performance of the networks. The quality of service and security is one of the most important challenges in routing due to lack of reliable methods. Routers use routing algorithms to find the best route to a particular destination. When talking about the best path, we consider p...

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