منابع مشابه
Physico-Chemical Disintegration of Concrete
The purpose of this paper is to list and discuss briefly some of the causes of chemical and physico-chemical disintegration of concrete and to point out some methods that can be used to study these causes. In this paper a distinction is made between physico-chemical (or chemico-physical) and mechanical causes of failure. Processes involving changes in chemical composition (chemical reactions pr...
متن کاملPhysico-chemical fingerprinting of RNA genes
We advance here a novel concept for characterizing different classes of RNA genes on the basis of physico-chemical properties of DNA sequences. As knowledge-based approaches could yield unsatisfactory outcomes due to limitations of training on available experimental data sets, alternative approaches that utilize properties intrinsic to DNA are needed to supplement training based methods and to ...
متن کاملPhysico-chemical Profile of Ammi Majus
whole part and mother tincture of Ammi majus were chemically analyzed for setting the standards in Homoeopathic system of medicine. Extractive value, Ash value, TLC UV study and the absorbance spectra in the range of 200-500 nm can be taken as parameters to fix standards.
متن کاملCcxli. the Physico-chemical Behaviour of Lecithin
THE work described in this paper is a continuation of that commenced by H. I. Price and Lewis [1929] and extended by Jones and Lewis [1932]. The former measured, by means of a dynamic method, the surface tension of aqueous dispersions of pure lecithin as a function of PH. It was found that a maximum value of the surface tension occurred at PH 2-6 (approx.) in close agreement with the value of t...
متن کاملPhysico-chemical Basis for Struvite Stone Formation
iii ACKNOWLEDGEMENTS iv TABLE OF CONTENTS vi LIST OF TABLES xii LIST OF FIGURES xiv CHAPTER
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 Geographical Journal
سال: 1927
ISSN: 0016-7398
DOI: 10.2307/1783509