نتایج جستجو برای: air quality control

تعداد نتایج: 2141727  

Journal: :Journal of applied physiology 2017
Thuy T Pham Philip H W Leong Paul D Robinson Thomas Gutzler Adelle S Jee Gregory G King Cindy Thamrin

The forced oscillation technique (FOT) can provide unique and clinically relevant lung function information with little cooperation with subjects. However, FOT has higher variability than spirometry, possibly because strategies for quality control and reducing artifacts in FOT measurements have yet to be standardized or validated. Many quality control procedures rely on either simple statistica...

2010
J. Amudhavel Saleem Basha T. Vengattaraman P. Dhavachelvan R. Baskaran

In the recent computing network environment based on reliability and data availability data availability plays a vital role in Network environment. Traffic Management(TM) is widely used in distributed network environment to reduce access cost and improve data availability [5],[6]. It also focuses in maintaining the effective availability of data and maintaining the reliability of data. This pap...

Journal: :iranian journal of pharmaceutical research 0
mh hoshdar tehrani afshin zarghi s fathali

nitrofurazone is one of the antibacterial nitrofuran agents used topically for skin infections. the drug is effective on the majority of infectious microorganisms. because of the importance of this drug in clinic, in this study various methods of synthesis of nitrofurazone were examined and the most appropriate method, applicable to pharmaceutical industry was chosen and optimized from the poin...

ژورنال: سلامت و محیط زیست 2013
جباری, حسین, جمشیدی, ارسلان, رایگان شیرازی نژاد, علیرضا, رضایی, سهیلا, سادات, عبدالمحمد, ندافی, کاظم, یونسیان, مسعود,

Background and Objectives: In recent years exposure to fine airborne particles has been identified as an important factor affecting human health. Epidemiological studies have showed that the aerosol laden air can be an agent for microorganisms’ dispersion. Ignoring internal sources, ambient air quality significantly affects indoor air quality. Since people spend most of their times in the indoo...

2014
Matthew D Brace Elizabeth Stevens S Mark Taylor Sarah Butt Zhennan Sun Licai Hu Megan Borden Neeraj Khanna James Kuchta Jonathan Trites Robert Hart Mark D Gibson

Objectives: To measure changes in air quality during surgery. Methods: Operating room (OR) and hallway air quality was continuously monitored over a 3-month period. Rooftop monitoring was used to control for environmental changes and to account for the infiltration of outdoor air pollutants. Air quality measurements were correlated with operative times and electro-dissection equipment used. Res...

2010

Sources of PM10 within urban areas of the UK include road traffic, industry and power production. Results from numerous investigations of human respiratory and other diseases show consistent statistical associations between human exposure to outdoor levels of PM10 and adverse health impacts. Health effects range from alveolar inflammation in the lungs and respiratory-tract infection (specifical...

2011
C. A. Balaras

The issues of indoor air quality are complex and can be directly influenced by a number of system and building parameters. There are no universal solutions for every problem since there are numerous potential contaminant sources. They may originate from indoors and have a direct impact on indoor environmental quality, or they may originate from outdoors and be transferred by a mechanical or nat...

2009
Sunyoung Kim Eric Paulos

In most large cities of the developing world, urban air pollution has worsened, which has been detrimental to the health of their populations. At the same time, it is difficult for lay people to sense the level of air quality with bare human perception as air pollutants are mostly invisible and odorless. We believe that computing technologies can help increase awareness of urban air quality. To...

Journal: :Allergy proceedings : the official journal of regional and state allergy societies 1991
M J Hodgson

Complaints in modern buildings have been attributed to inadequate ventilation for the last 20 years. Few data exist to support this claim. In fact, few studies have actually looked at ventilation and complaints at the same time. These missing studies indicate a failure of three groups of professionals, physicians and health scientists, architects and engineers, and scientists knowledgeable in e...

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