منابع مشابه
Microdetermination of protein nitrogen with a dumbbell diffusion apparatus.
The use of a two-chamber, sealed microdiffusion apparatus has been investigated for the determination of protein nitrogen on samples containing 0.5 mg. protein. The apparatus is constructed from a ground-glass ball-and-socket joint, and all operations including digestion are performed in the designed apparatus. The method has been applied to the determination of nitrogen in tobacco mosaic virus...
متن کاملA New Type of Apparatus for the Determination of the Thermal Diffusion Factor
conclusions. If a laser giant pulse is sent through the liquid the beam diameter is reduced during its path through the cell due to self-focusing. The diameter at the exit window, which decreases with increasing laser power, follows quasistationarily the instantaneous laser power. For low incident laser power, the diameter increases again after the power has passed its peak value. At high laser...
متن کاملA New Sputtering Apparatus
The writer, in sputtering a large number of mirrors, has found that the apparatus and methods to be described have several advantages, particularly where very large and perfect mirrors are desired. The accompanying diagram will be self explanatory, and the dimensions given have been found convenient for mirrors up to 10 cm diameter. The apparatus has been designed to avoid the use of any grease...
متن کاملA Simple Anæsthetic Apparatus
In the apparatus about to be described I make no claim to originality in design. It has been my endeavour to find the simplest form of anaesthetic apparatus which could, with slight adaptation, be used with reliability for intra-tracheal, intra-pharyngeal, or intra-nasal induction using ether with air or oxygen. This apparatus has been in constant use for the past 33r years in certain Indian mi...
متن کاملA Radiofrequency Radiation Exposure Apparatus
A radiofrequency radiation exposure apparatus has been developed and placed into operation at the USAF School of Aerospace Medicine, Brooks AFB, Tex. The rectangular coaxial device has dimensions of 4% ft. by 9% ft. by 30 ft., with a 6-ft.-wide center conductor. It is powered by a B0-kwp. transmitter and operates in a pulsed mode at frequencies of 10.5, 19.27, and 26.6 MHz. Up to 12 animals (Ma...
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: The Journal of Physiology
سال: 1897
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1897.sp000644