Direct measurements of reaeration rates using noble gas tracers in the River Lagan, Northern Ireland
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چکیده
منابع مشابه
Noble Gas Measurements in Metal from Pallasites
Introduction: Pallasites are stony-iron meteorites that likely formed at the core-mantle boundary of one or more differentiating parent bodies [e.g., 1]. The noble gas concentrations of palla-sites are interesting for several reasons. First, some samples of Brenham olivines contain solar gases [2,3], which raises the question how the olivines managed to retain the trapped solar component during...
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شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...
Noble Gas Measurements of the Grant Iiiab Iron Meteorite
Introduction: In contrast to stony meteorites, which have exposure ages usually not higher than a few tens of million years, most iron meteorites exhibit cosmic-ray exposures of hundreds of million years. Consequently, iron meteorites have collected information about the solar system, encoded in cosmogenic nuclides, for much longer than stony meteorites. Iron meteorites are therefore indispensa...
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Annual figures collected by the Samaritans from the Registrar Generals' figures for suicides for the years 1984-2002 inclusive were analysed. Trends by gender, age group, marital status and method were examined. Suicide rates were standardised where appropriate. The mean annual rate was calculated for the 10 year period 1984-1993 and compared with the nine year period 1994-2002. The mean annual...
متن کاملthe effect of using critical discourse analytical tools on the improvement of the learners level of critical thinking in reading comprehension
?it is of utmost priority for an experienced teacher to train the mind of the students, and enable them to think critically and correctly. the most important question here is that how to develop such a crucial ability? this study examines a new way to the development of critical thinking utilizing critical discourse analytical tools. to attain this goal, two classes of senior english la...
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ژورنال
عنوان ژورنال: Water and Environment Journal
سال: 2007
ISSN: 1747-6585,1747-6593
DOI: 10.1111/j.1747-6593.2007.00069.x