NOTE ON FLUORITE
نویسندگان
چکیده
منابع مشابه
the effects of cognitive strategies- note making and underlining- on iranian efl learners’ reading comprehension
هدف از انجام این مطالعه ، بررسی اثرات استفاده از استراتژی های شناختی یعنی "نت برداری" و "زیر خط کردن" بر روی عملکرد درک مطلب زبان آموزان ایرانی می باشد. به این منظور، 60 زبان آموز دختر سال چهارم دبیرستان از طریق آزمون پیشرفت زبان انگلیسی (نلسون)، از یک جامعه آماری بزرگتر انتخاب شدند. سپس به صورت تصادفی به سه گروه که هر گروه شامل ?0 دانش آموز همسان بود، تقسیم شدند: دو گروه آزمایش(گروه "نت برداری...
15 صفحه اولThe significance of metamorphic fluorite in the Adirondacks*
Thermodynamic calculations for selected silicate-oxide-fluorite assemblages indicate that several commonly occurring fluorite-bearing assemblages are restricted to relatively narrow fo,-fF> fields at constant P-T. The presence of fayalite-ferrohedenbergite-fluorite-quartz *magnetite and ferrosalite-fluorite-quartz-magnetite assemblages in orthogneisses from Au Sable Forks, Wanakena and Lake Ple...
متن کاملStructure and Conductivity of Pyrochlore and Fluorite Type Solid Solutions
High oxygen conductivities can be achieved in cation ordered LnxZrl_=O2_l x (Ln=Gd, Nd) solid solutions with pyrochlore (P) structure. High values of the pre-exponentlal factor °o are correlated with the degree of anion disorder in the 8b oxygen sublattice (neutron diffraction). The activation energy AH is lowered by cation ordering (F-P transition; effect of x) due to the occurence of a prefer...
متن کاملRate of Recovery from the Action of Fluorite Rays
This paper is a report of some experiments upon the rate of recovery of Paramecium caudatum from the cytolyfic action of fluorite rays. The organisms were exposed to the radiation emitted through the fluorite window of the hydrogen discharge tube described in previous communications. 1,* The intensity of the radiation was such that an exposure of 8 seconds caused cytolysis in 57 per cent of the...
متن کاملThe mechanism of adsorption of sodium dodecylsulfonate on fluorite and its surface free energy
The interaction mechanism of sodium dodecyl sulfonate (NaDS) with mineral fluorite has been investigated by Infrared Attenuated Total Reflection (ATR). Measurements have been done using a modified ATR cell which allows the study of powdered samples without previous manipulations. Adsorption experiments were carried out at 25°C and pH 6.5. Also measurements of the contact angle for water. glycer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Royal Microscopical Society
سال: 1920
ISSN: 0368-3974
DOI: 10.1111/j.1365-2818.1920.tb06120.x