نتایج جستجو برای: contamination limit

تعداد نتایج: 240891  

2008
Pengjie Zhang

The existence of non-random galaxy intrinsic ellipticity severely challenges precision cosmic shear measurement. We propose to self calibrate the induced gravitational shear-galaxy intrinsic ellipticity contamination (the GI correlation, Hirata & Seljak 2004) using extra information encoded in the same weak lensing survey. Besides the galaxy ellipticity-galaxy ellipticity correlation, the same ...

Journal: :Public health 2006
Maged Mohammed Yassin Salem S Abu Amr Husam M Al-Najar

OBJECTIVE To assess the contamination level of total and faecal coliforms in water wells and distribution networks, and their association with human health in Gaza Governorate, Gaza Strip. METHODS Data were obtained from the Palestinian Ministry of Health on contamination of total and faecal coliforms in water wells and distribution networks, and on the incidence of water-related diseases in ...

2011

Background The Sediment Quality Objectives (SQO) indirect effects assessment determines whether sediments meet California’s narrative SQO for human health: Pollutants shall not be present in sediments at levels that will bioaccumulate in aquatic life to levels that are harmful to human health. This program determines whether sediment contamination at a site results in an unacceptable health ris...

2005
Carl D. Laird Lorenz T. Biegler Bart G. van Bloemen Waanders

Presidential Decision Directive 63 identified water systems as one of the critical infrastructures to the United States. Following this directive and the passing of The Public Health, Security, and Bioterrorism Preparedness and Response Act there has been increased research effort in both assessing the vulnerability of drinking water systems and proposing protection measures. Drinking water net...

2006
EVA ČONKOVÁ ANNA LACIAKOVÁ IGOR ŠTYRIAK LUDWIK CZERWIECKI

ČONKOVÁ E., LACIAKOVÁ A., ŠTYRIAK I., CZERWIECKI L., WILCZINSKA G. (2006): Fungal contamination and the levels of mycotoxins (DON and OTA) in cereal samples from Poland and East Slovakia. Czech J. Food Sci., 24: 33–40. The cereal samples were taken immediately after harvest from the selected localities of Poland (45 samples) and East Slovakia (60 samples). Fungal contamination of these samples ...

Journal: :The Annals of occupational hygiene 2011
G Denola P J Hanhela W Mazurek

Monitoring of tricresyl phosphate (TCP) contamination of cockpit air was undertaken in three types of military aircraft [fighter trainer (FT), fighter bomber (FB), and cargo transport (CT) aircraft]. The aircraft had a previous history of pilot complaints about cockpit air contamination suspected to originate from the engine bleed air supply through the entry of aircraft turbine engine oil (ATO...

2006
G. Bernardi E. Carretti

We present results of polarization observations at 1.4 GHz of the two fields imaged by the DASI experiment (α = 2330, δ = −55◦ and α = 0030, δ = −55◦, respectively). Data were taken with the Australia Telescope Compact Array with 3.4 arcmin resolution and ∼ 0.18 mJy beam sensitivity. The emission is dominated by point sources and we do not find evidence for diffuse synchrotron radiation even af...

2004
Carl Steidley Ray Bachnak Wien Lohatchit Alexey L. Sadovski Cody Ross

Water quality data collection in shallow water areas can be a challenging task. Obstacles encountered in such environments include difficulty in covering large territories and the presence of inaccessible areas due to a variety of reasons such as a soft bottom or contamination. There is also a high probability of disturbing the test area while placing the sensors. This paper describes a NASA-fu...

Journal: :Ecological applications : a publication of the Ecological Society of America 2011
Andrew Robinson Mark A Burgman Rob Cannon

Allocating resources to detect invasive pests, diseases, and pathogens on exposure pathways requires a trade-off between the need to detect as many contaminated items as possible and the need to acquire knowledge about contamination rates. We develop a model and an algorithm that provide guidance for the allocation of inspection resources across multiple dynamic pathways in cases where not ever...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید