نتایج جستجو برای: lr 115 detector

تعداد نتایج: 87518  

2015
Yingzi Lin Mingli Chen Jing Hengfeng Miao Kejia Zhang

Ozone pre-oxidation can effectively degrade MC-LR, 2mg / L ozone for MC-LR removal efficiency of 65.28%. 2mg / L ozone for MC-LR removal efficiency reach to 65.28%. Ozone also has a better removal effect for turbidity and UV254 , 4mg / L ozone for UV254 and turbidity removal efficiency are 50% and 59.38%. But ozone removal efficiency of TOC and CODMn was poor, 3mg / L ozone for TOC and CODMn re...

Journal: :Radiation protection dosimetry 2010
V W Y Choi C K M Ng R K K Lam M Janik A Sorimachi C Kranrod D Nikezic S Tokonami K N Yu

The 'proxy equilibrium factor' (F(p)) method has been developed for long-term determination of airborne radon progeny concentrations using LR 115 solid-state nuclear track detectors. In this paper, the effects of (220)Rn on the F(p) method have been studied. The correction to the track density was related to a parameter α which was the ratio of the sum of activity concentrations of alpha-partic...

2016
Leonid Pishchulin Eldar Insafutdinov Siyu Tang Bjoern Andres Mykhaylo Andriluka Peter Gehler Bernt Schiele

First, detailed performance analysis is performed when evaluating various parameters of AFR-CNN and results are reported using PCK [13] evaluation measure. Then, performance of the proposed AFR-CNN and Dense-CNN part detection models is evaluated using strict PCP [4] measure. Detailed AFR-CNN performance analysis (PCK). Detailed parameter analysis of AFR-CNN is provided in Tab. 1 and results ar...

2003
Joon-Hyuk Chang Jong Won Shin Nam Soo Kim

This paper proposes a voice activity detector (VAD) based on the complex Laplacian model. With the use of a goodness-of-fit (GOF) test, it is discovered that the Laplacian model is more suitable to describe noisy speech distribution than the conventional Gaussian model. The likelihood ratio (LR) based on the Laplacian model is computed and then applied to the VAD operation. According to the exp...

2012
G. H. Rieke

Use of infrared detector arrays in astronomy began roughly 20 years ago, and our detection capabilities in parts of this spectral range have doubled about every seven months since then. A variety of approaches are now used for detector arrays operating from 1 μm to 1 mm and beyond. They include direct hybrid arrays of InSb and HgCdTe photodiodes that operate from 0.6μm to 5μm, and of Si:As impu...

Afshin Ebrahimi, Ali Abdolahnejad, Karim Ebrahimpour, Negar Jafari,

Introduction: Microcystin-leucine arginine (MC-LR) is a toxin with harmful effects on the liver, kidney, heart, and gastrointestinal tract. So, effective removal of MC-LR from water resources is of great importance. The aim of this study was to remove microcystin-LR (MC-LR) from aqueous solution by Titanium Dioxide (TiO2). Materials and Methods: In the present study, TiO2, as a semiconductor, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1378

به منظور شناساییی فاکتورهای غیربیماریزا و بیماریزایی (avirulence/virulence factors) جدایه های قارچ puccinia recondita f. sp. tritici عامل بیماری زنگ قهوه ای گندم در ایران، در سالهای 1374 الی 1376 تعداد 115 نمونه برگ گندم آلوده به این بیماری از مناطق مختلف کشور جمع آوری و به گلخانه منتقل گردید. پس از خالص سازی و تکثیر، جدایه های خالص شده در گلخانه روی گیاهچه های 34 لاین تقریبا ایزوژن (near isoge...

Journal: :The Astrophysical Journal 2023

In this work, we make use of a supervised machine learning algorithm based on Logistic Regression (LR) to select TeV blazar candidates from the 4FGL-DR2 / 4LAC-DR2, 3FHL, 3HSP, and 2BIGB catalogs. LR constructs hyperplane selection optimal parameters, named features, hyper-parameters whose values control process determine features that ends up learning, discriminate blazars non-TeV blazars. add...

2002
A F POLMEAR I J KENNEY S A BARNARD

Background. All children with urinary tract infections (UTIs) should undergo imaging of the urinary tract. The Royal College of Radiologists currently recommends that such children should be referred to a paediatric specialist prior to imaging. Aim. To investigate whether direct referral of such children by general practitioners (GPs) for imaging offers advantages over the traditional approach....

Journal: :Sustainability 2022

Archaeological site predictive modeling is widely adopted in archaeological research and cultural resource management. It conducive to excavation reveals the progress of human social civilization. Xiangyang City focus this paper. We selected eight geographical variables as influencing variables, which are elevation, slope, aspect, micro-landform, slope position, plan curvature, profile distance...

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