Tritium counting with a Windowless Gas Flow Counter

Approximate Counting with a Floating-Point Counter

Memory becomes a limiting factor in contemporary applications, such as analyses of the Webgraph and molecular sequences, when many objects need to be counted simultaneously. Robert Morris [Communications of the ACM, 21:840–842, 1978] proposed a probabilistic technique for approximate counting that is extremely space-efficient. The basic idea is to increment a counter containing the value X with...

A windowless flow-type Geiger counter for the assay of solid materials containing soft beta-emitting isotopes.

a numerical study of a three-dimensional proton exchange membrane fuel cell (pemfc) with parallel and counter flow gas channels

modeling the heat and mass transport in micro channel is being used extensively in researches and industrial applications. the aim is optimizing fuel cell designs before building a prototype for engineering application. in this study, numerical, three-dimensional, single phase computational fluid dynamics model of a proton exchange membrane fuel cell with both the gas distribution flow channels...

Intracellular Localization and Quantitation of Tritiated Antigens in Reticuloendothelial Tissues of Mice during Secondary and Hyperimmune Responses

Autoradiography and quantitative radiochemical techniques have been used to determine intracellular localization of tritium and the quantity of tissue-bound tritium, respectively, following injections of H(3)-aniline azo PGG or H(3)-arsanilazo PGG to yield hyperimmune or secondary response stimulation in mice. Autoradiography revealed intracytoplasmic localization of grains in macrophages of sp...

مطالعه تجربی شعله دیفیوژن counter-flow

در این تحقیق به مطالعه شعله پس اختلاط counterflow در حالت جریان آرام پرداخته شده است. تحقیقات صورت گرفته در این پروژه را می توان به دو دسته تجربی و عددی تقسیم کرد. در قسمت تجربی، جهت انجام آزمایشات، مشعل counterflowطراحی و ساخته شده است. مشعل طراحی شده از دو تکه تشکیل شده که بصورت روبروی هم قرا گرفته اند. هر کدام از آنها شامل دو لوله هم محور با قطرهای مختلف می باشند که فاصله بین دو تکه را می تو...