نتایج جستجو برای: node density

تعداد نتایج: 575200  

Journal: :iranian journal of nuclear medicine 2012
vahid reza dabbagh kakhki ali jangjoo alireza tavassoli mahdi asadi keyvan sadri

introduction: several radiotracers are being used for sentinel node mapping in patients with breast cancer. in the current study, we reported our experience with 99m-tc phytate for sentinel node mapping in mashhad university of medical sciences. methods: all breast cancer patients who underwent sentinel node mapping using 99m-tc phytate were included. all patients received intradermal peri-areo...

2001
Michele Zorzi Ramesh R. Rao

In this paper, we describe a novel forwarding technique based on geographical location of the nodes involved and random selection of the relaying node via contention among receivers. A collision avoidance scheme based on this idea is described in detail, and an approximate analysis is provided. The proposed scheme is compared with STEM, and is shown to perform significantly better for sufficien...

Journal: :Ad Hoc & Sensor Wireless Networks 2009
Lakshmi V. Thanayankizil Aravind Kailas Mary Ann Ingram

The Opportunistic Large Array (OLA is a simple strategy that provides a Signal-to-Noise Ratio (SNR) advantage from the spatial diversity of distributed single-antenna radios. In this paper, we present a collection of broadcasting and upstream routing protocols that have been developed for the OLA physical layer. We consider several benefits of OLA transmissions, namely, energy efficiency, survi...

Journal: :Int. J. Systems Science 2014
Jifu Zhang Sulan Zhang Kai-Hsiung Chang Xiao Qin

An Outlier Mining Algorithm Based on Constrained Concept Lattice Jifu Zhang , Sulan Zhang , Kai H. Chang b, and Xiao Qin a School of Computer Science and Technology, Taiyuan University of Science and Technology, Taiyuan, P. R. China 030024 b Department of Computer Science and Software Engineering, Auburn University, Auburn, AL, USA 36849-5347 [email protected] Abstract: Traditional outlier min...

Journal: :acta medica iranica 0
houman hashemian department of pediatrics, school of medicine, guilan university of medical sciences, guilan, iran. mohammad mahdi karambin department of pediatrics, school of medicine, guilan university of medical sciences, guilan, iran.

to review children with kawasaki disease admitted in 17-shahrivar hospital of rasht from 1999 to 2007. we reviewed retrospectively 64 children with kawasaki disease between 1999-2007 admitted in 17-shahrivar hospital of rasht. frequency distributions of variants including age, sex, season, clinical and laboratory manifestations, response to treatment and complications of the patients were abstr...

ژورنال: مجله دندانپزشکی 2008
رهرو تابان, صدیقه, عشقیار, نصرت اله, مطهری, پوریا,

Background and Aim: Angiogenesis plays a central role for development and progression of malignant tumors.It is considered as an important factor for predicting of malignant tumor's behavior such as metastasis to lymph nodes and other clinicopathologic factors. However , it is still a controversial factor especially in oral squamous cell carcinoma.The aim of this study was to evaluate the corre...

2012
Zenglin Zhang Pute Wu Wenting Han Xiaoqing Yu

With the research of the wireless sensor network technology, some wireless underground sensor network nodes and a sink node based on embedded technology and RF technology were designed innovatively. Wireless underground sensor network node consists of sensor, the processor, wireless RF module and power module; here, processor using MSP430 microcontroller, RF modules adopting nRF905 communicatio...

Journal: :علوم باغبانی 0
سیدحسین نعمتی علی اکبر اسماعیلی غلامحسین داوری نژاد محمد فارسی

abstract the quantative and qualitative yield comparison of three cucumber f1 cultivars including' sina, amyral, and negin was evaluated using 3×3×3 factorial experimental design with six replication. three types of pruning treatments were applied; cutting down all branches on main stem (b1), leaving one node and the leaf next to it on all branches (b2), leaving two node and the leaf next to th...

Journal: :CoRR 2014
Luis Enrique Correa da Rocha Naoki Masuda

Nodes can be ranked according to their relative importance within the network. Ranking algorithms based on random walks are particularly useful because they connect topological and diffusive properties of the network. Previous methods based on random walks, as for example the PageRank, have focused on static structures. However, several realistic networks are indeed dynamic, meaning that their ...

2016
Guisong Yang Shuai Liu Xingyu He Naixue Xiong Chunxue Wu

The design of movement trajectories for mobile sink plays an important role in data gathering for Wireless Sensor Networks (WSNs), as it affects the network coverage, and packet delivery ratio, as well as the network lifetime. In some scenarios, the whole network can be divided into subareas where the nodes are randomly deployed. The node densities of these subareas are quite different, which m...

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