نتایج جستجو برای: boundary node

تعداد نتایج: 327797  

Journal: :iranian journal of radiation research 0
m. najafi surgery department, cancer institute, tehran university of medical science, tehran, iran h.a. nedaie radiotherapy oncology department, cancer institute, tehran university of medical sciences, tehran, iran a. lahooti radiotherapy oncology department, cancer institute, tehran university of medical sciences, tehran, iran r. omranipour surgery department, cancer institute, tehran university of medical science, tehran, iran n. nafissi khatam cancer center, khatam-ol-anbia hospital, vali asr ave, tehran, iran m.e. akbari department of surgery, shohada tajrish hospital, tajrish, qhods sq., tehran, iran

background: sentinel node biopsy (slnb) is the standard of care for breast cancer treatment and it is getting wide acceptance in iran. the radiation safety of the procedure has been investigated under controlled conditions, but the standard dose of radiotracer and techniques are not always observed in the community setting. the aim of this study was to assess the magnitude of the absorbed doses...

Journal: :iranian journal of pathology 2012
shokouh aghipour zahir kiyanoosh sedaghat saeed kargar

endometrial adenocarcinoma is uncommon in fewer than 40-year-old people. the first common sign and symptoms are abnormal vaginal bleeding and discharge. metastasis is occurred in the late stage. here we present a 31-year-old nullipar woman who was admitted to surgical ward with enlarged right inguinal lymphnode from one month ago. she had no history of previous malignancy, infectious condition,...

Journal: :Applied Mathematics Letters 2021

This paper is concerned with boundary schemes of the lattice Boltzmann method for Robin conditions convection–diffusion equations on curved boundaries. For such conditions, all existing suffer from possibility that denominator in scheme may become zero, which will lead to numerical instability. To avoid this possibility, we propose a by approximating gradient along outgoing discrete velocity at...

Journal: :Development 1994
R S Beddington

The anterior aspect of the mouse primitive streak resembles the organizer of Xenopus and chick in terms of its developmental fate, ability to alter pattern in the chick limb bud and with respect to the repertoire of genes that its constituent cells express. However, until now there has been no direct evidence that the mouse node organizes pattern during gastrulation, nor that the exceptionally ...

2014
Zhou feng

Received Aug 11, 2013 Revised Mar 4, 2014 Accepted Mar 26, 2014 This paper proposes a new rolling algorithm for path plan of mobile robot based on automatically shunt the ant algorithm. The goal node is mapped to the node nearby the boundary in the eyeshot of the robot, and make out the best partial path, which the robot goes ahead for a step. The algorithm will iterate one time when the robot ...

2014

Node localization technology is a key technology of WSN, and this paper proposes a rank sequence localization algorithm based on Voronoi and Spearman. First of all, the paper divides the localization space of WSN according to the Voronoi diagram, takes the polygon’s points, center of gravity and the boundary intersection as virtual anchor nodes, and builds the rank sequence list for virtual anc...

2004
Dimitrios Lymberopoulos Andreas Savvides

This document describes a new versatile generalpurpose wireless sensor node architecture designed around the OKI ARM ML67Q500x microprocessor and the IEEE 802.15.4 compliant CC2420 radio from Chipcon. This platform designed for experimentation, educational projects and preliminary deployment in industrial environments. The XYZ node architecture is described in the context of a 3-D testbed recen...

2010
Y. J. Liu

A new boundary meshfree method, to be called the boundary distributed source (BDS) method, is presented in this paper that is truly meshfree and easy to implement. The method is based on the same concept in the well-known method of fundamental solutions (MFS). However, in the BDS method the source points and collocation points coincide and both are placed on the boundary of the problem domain d...

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