اندازه‌گیری پرتو گاما در زمینه‌های مختلف تحقیقاتی نیازمند آشکارسازهای کارآمد است. زمینه دزیمتری فوتون آشکارساز جرقه‌ای NaI(Tl) به عنوان یکی از سوسوزن معدنی (غیرآلی)، علت دارا بودن مقدار بالای نور خروجی بسیار حایز اهمیت این پژوهش سعی گردیده است، با کمک کد مونت‌کارلو (MCNPX) مقدمات مشخصه‌یابی توسط و بهره‌گیری روش‌های متفاوت محاسبه دز (تالی‌های 6F، 4*F، 6+F 8*F) انجام شود. طور معمول، یک تابش (شمار...

هدف: پژوهش حاضر با هدف شناسایی و اولویت‌بندی پیشایندها پسایندهای سبک رهبری چابک استفاده از روش دلفی فازی صورت پذیرفت.طراحی/ روش‌شناسی/ رویکرد: این نوع پژوهش‌های آمیخته رویکرد کیفی کمی در پارادایم استقرایی است که نظر هدف، کاربردی لحاظ ماهیت روش، اکتشافی است. جامعه آماری شرکت‌های دانش‌بنیان استان لرستان هستند 30 نفر خبرگان آنها بر اساس اصل کفایت نظری نمونه‌گیری هدفمند انتخاب شده‌اند. ابزار گردآور...

Abstract Borehole water has been the main source of drinking for communities living within Nnewi metropolis. The quality this borehole significantly affected by presence unlined waste dumpsites which release leachates. present study investigated physicochemical characteristics and located around environment dumpsite in Nnewi. In study, thirty-two (32) samples were collected from (16) control ar...

This work aims to evaluate the quality of drinking water in Disi aquifer Jordan. Several parameters are included mathematical equation average and establish suitability for purposes. Water sampling zones from three wells were used calculate indices (WQI). The samples analyzed several physicochemical parameters, including pH, turbidity, total dissolved solids, Na+, Ca2+, Mg2+, K+, HCO3−, SO42−, ...

The objective of this work was to evaluate water quality in the Sinú River northern Colombia, duringits dry and rainy seasons. index (WQI), heavy metal pollution (HPI),the evaluation (HEI), toxicity load (HMTL), degree ofcontamination (Cd) were calculated based on analyses samples taken along entire lengthof river at sixteen sampling sites. Comprehensive some cases punctual samplings wereperfor...

The study aimed to assess the relationship between surface water quality and diversity of planktonic communities in An Giang province, Vietnam. national technical regulations on quality, index (WQI), Shannon-Wiener (H') were applied evaluate quality. considerable influence parameters dominant plankton was determined by canonical correspondence analysis (CCA) similarity percentage (SIMPER). resu...

In this work, the possibility of using four water quality indices (WQIs) to evaluate status small rivers in Mediterranean region (Northern Greece) was investigated. The WQIs selected were NSF WQI, Oregon CCME WQI and Prati’s Index Pollution applied three rivers, namely Laspias, Kosynthos Lissos, located prefectures Xanthi Rhodope, Northern Greece. individual calculated based on values 11 physic...

Assessment of groundwater quality is important for drinking water, especially rural populations. The aim this study was to assess the human consumption by integrating water index with geographic information system (GIS) eventual interpretation Meknes area quality. Eight wells and two springs were investigated between February 2013 2014. In light analysis results, spatial distribution maps chose...