نتایج جستجو برای: air samples

تعداد نتایج: 615845  

E. Hosseini F. Darvish Gh. H. Asadi H. Fatemian P. Farzaneh

In this study, the effect of edible coat (carboxy methyl cellulose) before osmotic dehydration anddifferent drying methods on sensory and physical properties of dried apple (V. Golden delicious)rings was investigated. The coated and non-coated samples pretreated with 50% sucrose osmoticsolution and dried in freeze drier (-40 to -50°C, 0.026-0.017 mbar, 24 hr), vacuum drier (70°C, 200mbar, 8-10 ...

Journal: :The Journal of hospital infection 2007
D G Falvey A J Streifel

Airborne fungal samples were collected on a monthly basis for 10 years, from 1995 to 2005, at a tertiary university hospital. Paired samples were cultured at 25 and 37 degrees C. Data were interpreted according to the air filtration systems serving each location. Samples cultured at 37 degrees C from the patient care areas had a mean recovery of 18% of the mean recovery from outdoor air (22 ver...

Journal: :Environmental toxicology and chemistry 2014
Michael S Majewski Richard H Coupe William T Foreman Paul D Capel

A variety of current-use pesticides were determined in weekly composite air and rain samples collected during the 1995 and 2007 growing seasons in the Mississippi Delta (MS, USA) agricultural region. Similar sampling and analytical methods allowed for direct comparison of results. Decreased overall pesticide use in 2007 relative to 1995 generally resulted in decreased detection frequencies in a...

2017
Carla Viegas Tiago Faria Cátia Pacífico Mateus Dos Santos Ana Monteiro Carla Lança Elisabete Carolino Susana Viegas Sandra Cabo Verde

The aim of this work was to assess the microbiota (fungi and bacteria) and particulate matter in optical shops, contributing to a specific protocol to ensure a proper assessment. Air samples were collected through an impaction method. Surface and equipment swab samples were also collected side-by-side. Measurements of particulate matter were performed using portable direct-reading equipment. A ...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2010
Firas Choukri Jean Menotti Claudine Sarfati Jean-Christophe Lucet Gilles Nevez Yves J F Garin Francis Derouin Anne Totet

BACKGROUND Airborne transmission of Pneumocystis has been demonstrated in animal models and is highly probable in humans. However, information concerning burdens of Pneumocystis jirovecii (human-derived Pneumocystis) in exhaled air from infected patients is lacking. Our objective is to evaluate P. jirovecii air diffusion in patients with Pneumocystis pneumonia. METHODS Patients admitted with ...

Journal: :Environmental toxicology and chemistry 2004
Deborah A Davidson Andrew C Wilkinson Lynda E Kimpe Jules M Blais

The exchange of chlorinated organic pollutants between air and vegetation in cold, mountain environments was investigated through the extraction of coniferous vegetation and high-volume air samples collected from the Canadian Rocky Mountains during the summers of 1999 and 2000. Concentrations of several compounds in vegetation increased as temperatures decreased, whereas atmospheric concentrati...

Journal: :Indoor air 2000
J D Miller P D Haisley J H Reinhardt

We studied the extent and nature of fungal colonization of building materials in 58 naturally ventilated apartments that had suffered various kinds of water damage in relation to air sampling done before the physical inspections. The results of air samples from each apartment were compared by rank order of species with pooled data from outdoor air. Approximately 90% of the apartments that had s...

Journal: :Environmental monitoring and assessment 2014
Anita Érseková Klára Hilscherová Jana Klánová John P Giesy Jiří Novák

Although passive sampling has been previously used for the monitoring of volatile and semi-volatile contaminants in air, there are limited data on the use of this technique coupled with bioassays based on specific biological responses. Biological responses including those mediated by the aryl hydrocarbon (AhR) receptor as well as (anti-)estrogenicity and (anti-)androgenicity of samples from fou...

2013
Noor Hasmiza Harun Norhisam Misron Roslina Mohd Sidek Ishak Aris Desa Ahmad Hiroyuki Wakiwaka Kunihisa Tashiro

From the Malaysian harvester's perspective, the determination of the ripeness of the oil palm (FFB) is a critical factor to maximize palm oil production. A preliminary study of a novel oil palm fruit sensor to detect the maturity of oil palm fruit bunches is presented. To optimize the functionality of the sensor, the frequency characteristics of air coils of various diameters are investigated ...

2012
James Patrick White

Title of Document: AN EXPERIMENTAL ANALYSIS OF FIREFIGHTER PROTECTIVE CLOTHING: THE INFLUENCES OF MOISTURE AND A THERMALLY ACTIVATED EXPANDING AIR-GAP. James Patrick White, Master of Science, 2012 Directed By: Professor, Marino di Marzo, Department of Fire Protection Engineering Thermally protective clothing garments are necessary pieces of equipment that ensure the life safety of firefighters....

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