منابع مشابه
petrology and geochemistry of khar-bash (western shahrood) and its relation ship to iron mineralization
منطقه مورد مطالعه در 23 کیلومتری جنوب غرب شهرستاشاهرود قرار دارد که در نقشه 100000/1 شاهرود قرار گرفته است.ناحیه مورد مطالعه در تقسیمات ساختاری ایران بخشی از زون البرز شرقی است . در طی سنوزوئیک این زون به شدت تحت تأثیر فازهای کوهزایی آلپی قرار گرفته و فعالیت های آتشفشانی انوسن در قسمت های غربی آن دیده می شود . از نظر ترکیب سنگ شناسی منطقه مورد مطالعه متنوع و بیشتر شامل سنگ های رسوبی مانند : آ...
15 صفحه اولAddition of Alumina to Nanoporous Calcium Titanium Phosphate Glass-Ceramics and its Effects on Crystallization Behavior
Microporous Calcium Titanium Phosphate glass-ceramics have many uses in high-tech industries. For example, they have applications in catalysts industry. In this study, different molar percentages of alumina were added to a glass with P2O5 30, CaO 45, TiO2 25 (mol%) composition. The samples were melted at 1350°C and crystallization heat treatment was performed on...
متن کاملProduction and Crystallization Behavior of an Iron Rich Glass–Ceramic Prepared by Ironmaking and Steelmaking Wastes
Using wastes as starting raw materials is a common method to reduce the production costs and the environmental pollution problems arising from such wastes. In this study the production and crystallization behavior of an iron rich glass prepared by iron and steel making wastes has been investigated. The raw materials used, were the blast furnace slag, the blast furnace dust, converter slag and s...
متن کاملTrout Erythrocytes and Its Effects upon Oxygen-carrying Capacity
Addition of adrenalin (10~moll~) to trout erythrocytes in an unbuffered saline resulted in a rapid acidification of the extracellular medium. This process was inhibited by amiloride (Ki/2~10~moll~) and by the removal of extracellular Na + . The rate of acidification was a saturable function of extracellular Na concentration. When extracellular pH was maintained constant by continual titration w...
متن کاملAlcohol Use and Its Effects Upon Aboriginal Women
Social scientists, particularly anthropologists, have been taken to task for deflating and de-emphasising the problematic outcomes associated with alcohol use (Room 1984). Many researchers, reacting perhaps to the sometimes moralising stance taken by welfare-oriented approaches, have focused on the benefits associated with alcohol use for different societies, for example its role in exchange, a...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1882
ISSN: 0036-8733
DOI: 10.1038/scientificamerican08051882-5494asupp