نتایج جستجو برای: localization

تعداد نتایج: 138780  

Journal: :archives of breast cancer 0
abdolali assarian department of surgery, tehran university of medical sciences, tehran, iran sanaz zand kaviani breast diseases institute (kbdi) , tehran , iran

background: breast conservation therapy (bct) is the standard of care for early stage breast cancer. the procedure can be a challenge for the surgeon if the lesion is non-palpable. for excision of non-palpable breast lesions, they should be localized precisely before surgery. there are different techniques such as the wgl (wire guided localization), roll (radio-guided occult lesion localization...

Journal: :basic and clinical neuroscience 0
mahbubeh azadehdel mohammad reza parsaei reza boostani

localization of sources in patients with focal seizure has recently attracted many attentions. in the severe cases of focal seizure, there is a possibility of doing neurosurgery operation to remove the defected tissue. the prosperity of this heavy operation completely depends on the accuracy of source localization. to increase this accuracy, this paper presents a new weighted beamforming method...

Journal: :journal of computer and robotics 0
fereydoon abdi faculty of computer and information technology engineering qazvin branch islamic azad university qazvin, iran abolfazl toroghi haghighat faculty of computer and information technology engineering qazvin branch islamic azad university qazvin, iran

wireless sensor networks attracting a great deal of research interest. accurate localization of sensor nodes is a strong requirement in a wide area of applications. in recent years, several techniques have been proposed for localization in wireless sensor networks. in this paper we present a localization scheme with using only one mobile anchor station and received signal strength indicator tec...

Journal: :iranian journal of radiology 0
ali alamdaran mashhad university of medical sciences,mashhad,iran; ramin sadegi mashhad university of medical sciences,mashhad,iran aida sharifi mashhad university of medical sciences,mashhad,iran elaheh moododi mashhad university of medical sciences,mashhad,iran naser forghani mashhad university of medical sciences,mashhad,iran

conclusions radio-guided localization of non-palpable breast lesions is an acceptable method because of technical facilitation, accurate localization and complete excision with limited complications. so it can be recommended as an alternative method for wire-guided localization. results pathologic results were benign in 90.5% and malignant in 9.5% of patients. post-operative margin of lesion wa...

Journal: :iranian rehabilitation journal 0
abdollah moosavi department of audiology, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st, tehran zahra hosseini dastgerdi department of audiology, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st, tehran yones lotfi department of audiology, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st, tehran saeideh mehrkian department of audiology, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st, tehran enayatollah bakhshi department of biostatistic, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st, tehran bahare khavar ghazalani department of audiology, university of social welfare and rehabilitation sciences, avin, daneshjou blvd, koodakyar st., tehran

objectives: the aim of the present study was to assess the auditory lateralization ability in children with (central) auditory processing disorder. methods: participants were divided in two groups: 15 children with central auditory processing disorder (8-10 years) and 80 normal children (8-11 years) from both genders with pure-tone air-conduction thresholds better than 20 db hl bilaterally and ...

Journal: :international journal of smart electrical engineering 2013
mohsen jahanshahi abdolvahed moradpour poorya kiani

a wireless sensor network (wsn) is a wireless decentralized structure network consists of many nodes. nodes can be fixed or mobile. wsn applications typically observe some physical phenomenon through sampling of the environment so determine the location of events is an important issue in wsn. wireless localization used to determine the position of nodes. the precise localization in wsns is a co...

Journal: :journal of ai and data mining 2014
seyed mojtaba hosseinirad mehdi niazi j pourdeilami swapan kumar basu ali akbar pouyan

in wireless sensor networks (wsns), localization algorithms could be range-based or range-free. the approximate point in triangle (apit) is a range-free approach. we propose modification of the apit algorithm and refer as modified-apit. we select suitable triangles with appropriate distance between anchors to reduce pit test errors (edge effect and non-uniform placement of neighbours) in apit a...

Journal: :medical journal of islamic republic of iran 0
shirzad nasiri tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) ahmadreza soroush tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) amir pejman hashemi tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) anushiravan hedayat tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) kianoush donboli tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) farhad mehrkhani tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

background: bilateral neck exploration is the gold standard for parathyroid adenoma localization in primary hyperparathyroidism. but surgeons do not have adequate experience for accurate surgical exploration and new methods are developed for surgery like unilateral exploration and minimally invasive surgery, thus, preoperative localization could reduces time and stress in surgical performance. ...

Abolfazl Toroghi Haghighat, Fereydoon Abdi

Wireless sensor networks attracting a great deal of research interest. Accurate localization of sensor nodes is a strong requirement in a wide area of applications. In recent years, several techniques have been proposed for localization in wireless sensor networks. In this paper we present a localization scheme with using only one mobile anchor station and received signal strength indicator tec...

Journal: :acta medica iranica 0
reza raoofian department of medical genetics, faculty of medicine, tehran university of medical sciences, tehran, iran. mohammad reza noori-daloii department of medical genetics, faculty of medicine, tehran university of medical sciences, tehran, iran. samira saee-rad department of medical genetics, faculty of medicine, tehran university of medical sciences, tehran, iran. mohammad hossein modarresi department of medical genetics, faculty of medicine, tehran university of medical sciences, tehran, iran. seyed hamid ghaffari hematology, oncology and bmt research center, shariati hospital, tehran university of medical sciences, tehran, iran. majid mojarrad department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.

glioblastoma is the most common and the most lethal primary brain cancer. this malignancy is highly locally invasive, rarely metastatic and resistant to current therapies. little is known about the distinct molecular biology of glioblastoma multiforme (gbm) in terms of initiation and progression. so far, several molecular mechanisms have been suggested to implicate in gbm development. homeodoma...

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