نتایج جستجو برای: high level natural radiation area
تعداد نتایج: 3765169 فیلتر نتایج به سال:
background: over the past few years, the rapid use of high frequency electromagnetic fields like mobile phones has raised global concerns about the negative health effects of its use. adaptive response is the ability of a cell or tissue to better resist stress damage by prior exposure to a lesser amount of stress. this study aimed to assess whether radiofrequency radiation can induce adaptive r...
One goal of natural language generation is to produce coherent text that presents information in a logical order. In this paper, we show that topological fields, which model high-level clausal structure, are an important component of local coherence in German. First, we show in a sentence ordering experiment that topological field information improves the entity grid model of Barzilay and Lapat...
Cytogenetic investigation in a Brazilian population living in an area of high natural radioactivity.
This paper presents a cytogenetic survey of the inhabitants from Guarapari, a small village on the coast of the state of Espirito Santo, Brazil, who live permanently exposed to high levels of radiation. The geological, physical, and radiochemical aspects of the survey in this area have been published [1-4]. Guarapari is a village of 12,000 inhabitants located on patches of black sand composed o...
Space-time tubes, a feature that can be used for analysis of motion based on the observed moving points in a scene is introduced. Information provided by sensors is used to detect moving points and based on their connectivity, tubes enable a structured approach towards identifying moving objects and high level events. It is shown that using tubes in conjunction with domain knowledge can overcom...
Nominalization is a highly productive phenomena in most languages. The process of nominalization ejects a verb f rom its syntactic role into a nominal position. The original verb is often replaced by a semantically emptied support verb (e.g., make a proposal). The choice of a support verb for a given nominalization is unpredictable, causing a problem for language learners as well as for natural...
an extensive study was undertaken to investigate on the overall film badge service performance with which occupational radiation, exposures are reported in iran, the study involved the analysis of film badges exposed to x-and gamma rays and beta particles. for test exposures, x-rays between 60 and 140 kvpco-60 gamma radiation and sr-90 beta particles were used. the actual delivered dose equival...
Several tree transformation devices that are relevant in natural language processing are presented with a focus on the dependencies that they are able to capture. In many cases, the consideration of the dependencies alone can be used to provide a high-level explanation of the short-comings of tree transformation devices and allows surprising insights into their structure.
As a part of the safety program at the Limerick Nuclear Power Plant in Pennsylvania, per sonnel entering the plant must pass through a radiation monitoring area. In December 1984, the monitoring device detected an abnormally high level of radiation in one construction worker. When an investigation was made to determine how and where this worker was being exposed to excessive radiation, investi...
Introduction Natural and man made radioactive sources exist in our environment they can enter into our food chains. One of these is the soil-mushroom-human chain. High level doses of natural radiation can cause hazards to humans. Materials and Methods Samples of Agaricus bisporus cultivated edible mushroom in Tehran province- Iran were collected from 7 farms. Specific activity of 226Ra, 228Ra, ...
Human activities such as oil and gas production can enhance the natural level of naturally occurring radioactive materials (NORM) in by-product and waste streams. Iran has been among the top five oil producing countries since 2005. This high production rate emphasizes the importance of NORM management to ensure the safety of humans and wildlife. Petroleum storage and transport facilities are lo...
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