Manufacture of High Density Artificial Graphite by Pitch Impregnation
نویسندگان
چکیده
منابع مشابه
A method of artificial eye manufacture.
In most hospitals in the United Kingdom and in many other countries, the provision of an artificial eye depends upon an exchange of information between an artificial eye fitter and an artificial eye manufacturer who may be situated some distance away and who, in most instances, does not see the patient. The centralization of manufacturing facilities may have some advantages and while, in genera...
متن کاملNew Stellar Sources for High-density, Presolar Graphite Grains
We present C, N, O, Si, Al-Mg, K, Ca, and Ti isotopic analyses of seven high-density (ORG1f, 2:02 2:04 g cm ) graphite grains from Orgueil with C/C ratios smaller than 20. The presence of 44Ti in three of these grains indicates an origin in Type II supernovae (SNe). The C excesses in these SNe grains, however, remain enigmatic. The remaining grains have extremely large Ca and Ti isotopic anomal...
متن کاملthe effect of keeping reflective journals by language instructors on the process of reading comprehension among iranian high school students
خواندن ودرک مطلب از مهمترین مهارتها در یادگیری زبان خارجی محسوب می شود. این تحقیق تاثیر برگه های تامل برانگیز هدایت شده را در ارتقاع مهارت خواندن ودر ک مطلب در دانش اموزان دبیرستانی ایرانی بررسی می نماید. ازمجموع ?2 دانش آموز سال چهارم دبیرستان شهید رجایی شهرستان اسلامشهر¸ پس از اجرای آزمون استاندارد ((nelson 150a تعداد 39 دانش آموز که نمرات آنها یک سطح انحراف معیار بالاتر یا پایین تر ازمعدل قر...
Improved impregnation efficiency and pulp yield of softwood kraft pulp by high effective alkali charge in the impregnation stage
A pulp yield increase up to 2% can be achieved by impregnation with a liquor containing 2 M effective alkali (EA) concentration instead of 1 M. The yield increase is due to higher cellulose and glucomannan contents in the pulp, which can be rationalized by less yield loss by peeling, as impregnation is more effective at an elevated EA level. A rapid loading of chips with alkali can be realized...
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: TANSO
سال: 1957
ISSN: 1884-5495,0371-5345
DOI: 10.7209/tanso.6.38