نتایج جستجو برای: thermoluminescence dosimeters tld
تعداد نتایج: 3413 فیلتر نتایج به سال:
background: different kinds and models of personal dosimeters are used in individual monitoring by workers. performance testing as part of approval procedures is carried out to demonstrate that the essential performance specifications are routinely maintained. there are four service providers in iran which use different luminescence techniques (i. e. tld and rpl) with various kinds of dosimete...
Background: Different kinds and models of personal dosimeters are used in individual monitoring by workers. Performance testing as part of approval procedures is carried out to demonstrate that the essential performance specifications are routinely maintained. There are four service providers in Iran which use different luminescence techniques (i. e. TLD and RPL) with various kinds of dos...
BACKGROUND Lymphoscintigraphy (LS) and sentinel lymph node biopsy (SLNB) have typically been contraindicated for pregnant patients diagnosed with breast cancer because they are considered unsafe. PATIENTS AND METHODS Twenty-six premenopausal non-pregnant patients who were candidates for LS underwent peritumoral injection of approximately 12 MBq of 99mTc-HSA nanocolloids. Static [15 min and 16...
<span>Using a camera to monitor an object or group of objects over time is the process detection. It can be used for variety things, including security and surveillance, video communication, traffic light detection (TLD), from compressed in public places. In recent times, tracking has become popular topic computer science particularly, data community, thanks usage deep learning (DL) artif...
Simulating talker-to-listener distance (TLD) in virtual audio environments requires mimicking natural changes in vocal effort. Studies have identified several acoustic parameters manipulated by talkers when varying vocal effort. However, no systematic study has investigated vocal effort variations due to TLD, under natural conditions, and their perceptual consequences. This work examined the fe...
A retrospective study aims to explore differences in spinopelvic sagittal alignment between thoracolumbar disc herniation (TLD) and lower lumbar disc herniation (LLD).A total of 185 patients included 26 with TLD and 129 with LLD and 30 asymptomatic volunteers in normal group (NG). Each individual took full spine X-ray to evaluate pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumba...
AIMS Complex invasive electrophysiological procedures may result in high cumulative operator radiation exposure. Classical protection with lead aprons results in discomfort while radioprotection is still incomplete. This study evaluated the usefulness of a radiation protection cabin (RPC) that completely surrounds the operator. METHODS AND RESULTS The evaluation was performed independently in...
میزان موفقیت در پرتودرمانی به درستی و دقت میزان دز جذب شده در تومور بستگی دارد و معمولا به علت غیر عملی بودن اندازه گیری مستقیم دز جذب شده در بیماران از فانتوم استفاده می شود. در این تحقیق مقایسه دز تجویزی و دز جذبی در میدان های درمانی تنه در بیماری های هوچکین و آدنوکارسینومای رحم انجام پذیرفته است. روش درمانی را در این دو بیماری روی فانتوم اعمال کرده و دز جذبی در مرکز و نقاط مجاور تومورها با ا...
Thymineless death (TLD) is a classic and enigmatic phenomenon, documented in bacterial, yeast, and human cells, whereby cells lose viability rapidly when deprived of thymine. Despite its being the essential mode of action of important chemotherapeutic agents, and despite having been studied extensively for decades, the basic mechanisms of TLD have remained elusive. In Escherichia coli, several ...
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