نتایج جستجو برای: air samples

تعداد نتایج: 615845  

ژورنال: سلامت کار ایران 2014
اسرافیلی, علی, غلامی, حمید, فرزادکیا, مهدی, فرشاد, علی اصغر, کرمانی, مجید,

  Background and aims: Application of low heat devices was increased for infectious waste sterilizing in many hospitals in Iran. Studies have shown that the generation of volatile organic compounds (VOCs) and hazardous materials is most probable in the exhaust air of these devices. The main objective of this research is study of VOCs ( in the exhaust air from low heat sterilizer devices of four...

2014
S. Hebel R. Purtschert F. Göring J. Hands G. Kirchner

This paper introduces the krypton sampling and extraction facilities currently developed at the Centre for Science and Peace Research to collect and extract the krypton content from small air samples. The extraction unit able to isolate the krypton in small ambient air samples with high speed and high efficiency using a combination of cryogenic distillation and gas chromatography. Air samples a...

2012
Alireza Abdollahi Sanam Mahmoudzadeh

Background and Aims: Nosocomial infections cause considerable morbidity and mortality and pose high financial burden on healthcare systems. Although surface contact, surgical incisions, wounds and catheters are responsible for a high percentage of nosocomial infections, bacterial and fungal air contaminations in hospitals have an important role in development of hospital infections. The purpose...

ژورنال: سلامت کار ایران 2009
رستمی, رضا, طباطبایی, سید حمیدرضا, چوبینه, علیرضا,

  Background and aims   Bioaerosol exposure is associated with a vast range of adverse health effects including infectious diseases, acute toxic effects, allergy and cancer. This study was conducted to determine type and concentration of bioaerosols in ambient air of educational hospitals.   Methods   In this cross-sectional study, different wards of 5 educational hospitals including nurse stat...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2010
Marilyn S Bartlett Chao-Hung Lee

In this issue of the journal, Choukri et al [1] state that their study provides the first quantitative data on the spread of Pneumocystis jirovecii in exhaled air from infected patients. There are additional data in prior studies using air samples collected in rooms of patients diagnosed as having P. jirovecii showing that not only could the organisms be detected but also their types correlated...

1988
L.S.B. Bisht N. B. Brindavanam P. Kimothic

The study assess some herbal agents used for fumigations as listed in Ayurvedic literature for various applications. Here coarse powder of 19 freshly collected and dried herbal agents were used for fumigating a room of about 594 cu .ft. volume. Air samples were collected using Nutrient Agar plates just before , 15 minutes and 45 minutes after fumigation from both ground and top. Assessment of t...

2010
M. Brass T. Röckmann

We describe a continuous-flow isotope ratio mass spectrometry (CF-IRMS) technique for high-precision δD and δ13C measurements of atmospheric methane on 40 mL air samples. CH4 is separated from other air components by utilizing purely physical processes based on temperature, time and mechanical valve switching. Chemical agents are avoided. Trace amounts of interfering compounds can be separated ...

2012
Rebecca Bryson

174 Reduction in Allergic Rhinitis Index by Decreasing AeroAllergens and Malodor Causing Volatile Organic Compounds by Luna Air Purifiers Using Photo-Catalytic Oxidation (PCO) Technology Nabarun Ghosh, PhD, Cristina Aguaiza, Alicia Guzman, BS, Jay Chudasama, BS, Jeff Bennert, PhD, CTN, and A. B. Das, DSc. Life, Earth and Environmental Sciences, West Texas A & M University, Canyon, TX; Research ...

2012
Nabarun Ghosh Cristina Aguaiza Alicia Guzman Jay Chudasama Jeff Bennert A. B. Das

174 Reduction in Allergic Rhinitis Index by Decreasing AeroAllergens and Malodor Causing Volatile Organic Compounds by Luna Air Purifiers Using Photo-Catalytic Oxidation (PCO) Technology Nabarun Ghosh, PhD, Cristina Aguaiza, Alicia Guzman, BS, Jay Chudasama, BS, Jeff Bennert, PhD, CTN, and A. B. Das, DSc. Life, Earth and Environmental Sciences, West Texas A & M University, Canyon, TX; Research ...

Journal: :مهندسی بیوسیستم ایران 0
لیلا زیرجانی کارشناس ارشد، دانشگاه آزاد اسلامی واحد سبزوار حمید توکلی پور استادیار، دانشگاه آزاد اسلامی واحد سبزوار

bananas of long cavendish variety constituted the experimental samples in this research work. following the slicing of bananas, the samples were treated with three pretreatments of: 1% sodium bisulphate (t1), a combination of blanching and 1% sodium bisulphate treatment (t2), combined blanching and treatment with 1% ascorbic plus citric acid (1:1) mixture (t3) as well as an untreated sample, co...

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