نتایج جستجو برای: exposed node problem
تعداد نتایج: 1181694 فیلتر نتایج به سال:
In recent years, privacy concerns about social network graph data publishing has increased due to the widespread use of such data for research purposes. This paper addresses the problem of identity disclosure risk of a node assuming that the adversary identifies one of its immediate neighbors in the published data. The related anonymity level of a graph is formulated and a mathematical model is...
Burn injury is one of the most devastating injuries that may affect a patient. Even in economically deprived areas, burn care is largely driven by relatively plentiful resources equating quality of care with generous monitoring and clinical attention with little concern to management cost. Burn care costs have been the subject of very few investigations and are among the least studied by health...
background: in this study we evaluated the prognostic impact of metastatic lymph node ratio (mlr) in patients with gastric cancer undergoing curative surgical resection. methods: a total of 121 patients with gastric adenocarcinoma undergoing curative r0 surgical resection in our institutions between 2003 and 2010 were included in this study. mlr was classified into 3 groups as follows: mlr0; 0...
Mobile ad-hoc networks (MANETs) have no fixed infrastructure, so all network operations such as routing and packet forwarding are done by the nodes themselves. However, almost all common existing routing protocols basically focus on performance measures regardless of security issues. Since these protocols consider all nodes to be trustworthy, they are prone to serious security threats. Wormhole...
Simultaneous routing and resource allocation has been considered in wireless networks for its performance improvement. In this paper we propose a cross-layer optimization framework for worst-case queue length minimization in some type of FDMA based wireless networks, in which the the data routing and the power allocation problem are jointly optimized with Fuzzy distributed H∞ control strategy ....
:فعالیت قلب وابسته به ایمپالس های الکتریکی است که توسط سیستم ریتمیسیته تخصص عمل یافته ی تحریکی وهدایتی آن تولید وهدایت می شود. این سیستم نسبت به آسیب ناشی از بیماری های قلبی وداروهاومواد خاص حساس است.نتیجه ی اختلال در کار این سیستم غالبا پیدایش یک ریتم غیر عادی در الکتروکاردیوگرام می باشد. مطالعات در جانوران پیشنهاد میکند که کافئین در دوزهای بالاسیستم هدایتی قلب را متاثر میکند و بسیاری از پزشکا...
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