نتایج جستجو برای: terrestrial radioactivity

تعداد نتایج: 45697  

Journal: :Chemosphere 2002
Claire Laurent Cyril Feidt Nathalie Grova Didier Mpassi Eric Lichtfouse François Laurent Guido Rychen

Polycyclic aromatic hydrocarbons (PAHs) and dioxins are lipophilic organic pollutants occurring widely in the terrestrial environment. In order to study the PAHs and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) transfer in the food chain, pigs have been fed with milk mixed either with 14C-phenanthrene, with 14C-benzo[a]pyrene or with 14C-TCDD. The analysis of portal and arterial blood radioactivi...

2012
Dennis F Whigham

Terrestrial orchids represent a wide diversity of species that are characterised by an equally diverse range of life history attributes. Threatened and endangered species of terrestrial orchids have been identif ed on all continents where they occur and conservation plans have been developed for some species. Even though there is a considerable amount of information on the ecology of terrestria...

Journal: :iranian journal of radiation research 0
s. dizman abant i̇zzet baysal university, faculty of sciences and arts, department of physics, 14280, bolu, turkey f.k. görür recep tayyip erdoğan university, faculty of sciences and arts, department of physics, 53100, rize, turkey r. keser abant i̇zzet baysal university, faculty of sciences and arts, department of physics, 14280, bolu, turkey

background: turkey, especially the northern part of it, was one of the countries which were contaminated by the chernobyl accident.  rize is a city located in the northeastern district of turkey which was heavily influenced by the chernobyl nuclear accident. materials and methods: in this study, the activity concentrations of natural (226ra, 232th, 40k) and artificial (137cs) were measurements ...

Journal: :iranian journal of public health 0
b.khademi ma. hanjani

the existence of ra 226 is proved and measured by radiom emanation-method in waters and food products of north , north west and north – east of iran. a total of 126 water, 249 food and 22 air samples have been examined. the concertration of ra 226 in waters found to be 0.01 to 1.104 pci/1 and in food products from 0.01 to pci/gr. ash.the amount found in due ranges from 0.003 to 0.227 pci/m 3.it...

2012
S. B. Bengtsson

10 The dry and wet deposition of radionuclides released into the atmosphere can be 11 intercepted by vegetation in terrestrial ecosystems. The aim of this study was to quantify the 12 interception of wet deposited Cs and Sr by spring oilseed rape (Brassíca napus L.) and 13 spring wheat (Tríticum aestívum L.). The dependency of the intercepted fraction (f) on total 14 above ground plant biomass,...

2009
Majid Hosseini Abdul Samad Bin Haji Ismail Shukor Abd Razak

This paper reviews the existing localization techniques and parameters in Wireless Sensor Networks (WSNs) and few schemes are discussed in term of Terrestrial WSNs. The fundamental differences between Underwater and Terrestrial WSN are highlighted. Furthermore, the paper analyzes the few existing aquatic localization schemes and presents a discussion in two parts including general localization ...

Journal: :CoRR 2011
Yanlin Geng Amin Aminzadeh Gohari Chandra Nair Yuanming Yu

We establish a new outer bound for the capacity region of product broadcast channels. This outer bound matches Marton’s inner bound for a variety of classes of product broadcast channels whose capacity regions were previously unknown. These classes include product of reversely semi-deterministic and product of reversely more-capable channels. A significant consequence of this new outer bound is...

Journal: :CoRR 2001
Douglas W. Webbink

As far as many consumers and businessmen and women are concerned, increasingly wireline and wireless services, including those provided by terrestrial and satellite systems, are considered to be substitutes and sometimes complements, regardless of the laws and regulations applicable to them. At the same time, many writers and even government agencies (such as the FCC) have suggested that users ...

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