atomic and molecular collisions in a laser field

this conference proceedings contains 31 papers by various authors dealing with atomic and molecular collisoins in a laser field. major topics covered are: collisional processes in dense metallic vapors under resonant excitation; radiative processes involving a continuum. technical and professional papers from this conference are indexed a..

irradiation of cotton fibers in the presence of liquids

the present study is carried out to investigate the effects of $gamma$ -irradiation on cotton fibers in the presence of water, chlorinated hydrocarbon solvents, and aqueous solutions of naoh by using infrared spectroscopy. irradiation of cotton fibers in the presence of the mentioned solvents results in considerable increase of the degree..

behavior of cyanoethylated cotton towards gamma radiation

unmodified cotton fabric, cyanoethylated cottons having 0. 12, 0. 55, 0. 77, and 1. 24 n as well as cotton treated with naoh under conditions similar to those of cyanoethylation but in absence of acrylonitrile were exposed to gamma radiation doses (3. 199-31. 199 mrads). the six substrates before and after irradiation were assessed for co..

metrological support to nmr quality analyzers for agricultural and food products

the ussr food program for the period up to 1990 envisages radical improvement in the quality of agricultural and food products this essentially requires the use of the latest quality-evaluation methods. the water and oil contents are major parameters for the quality of seeds from oil crops (sunflower, soya, cotton, etc. ) and processing p..

designing in reinforced thermosets

this article considers moulding compounds based on polyester, phenolic, epoxy, alkyd, diallyl phthalate (da), urea and melamine resins. of these materials, polyester and phenolic are, by far, the most important in view of their wide usage. a variety of reinforcing agents are incorporated into one or more of the different types of thermose..

determination of triglycerides on cotton fabrics using fourier transform attenuated total reflection infrared spectroscopy

triglycerides deposited on cotton fabric in the form of artificial body soil (abs) were quantified with the use of atr/ft-ir spectroscopy after abs had been transferred onto the atr crystal under pressure. this approach improved the signal-to-background ratio by avoiding interference from cellulose absorption, and improved precision as co..

mikromitsety v khlebopekarnoi proizvodstve. $left bracket$ micromycetes in the production of bread $right bracket$

on the cotton clothes used in the production of certain kinds of bread, the growth of microorganisms is observed, mainly mycromycetes. characteristics of mycromycetes which contaminate cotton-fabric have been studied by authors. aspergillus niger, aspergillus flavus, rhizopus nigricans and penicillium notatum were identified. (edited auth..

lack of mutagenicity of products formed by ammoniation of gossypol

gossypol distributed on an inert gel carrier was treated in a pressurized ammoniation chamber used to detoxify aflatoxin-contaminated cottonseed meal. ames tests for mutagenicity were performed on untreated gossypol and on fractions eluted sequentially from the gel. nonammoniated gossypol was not mutagenic nor were any of the products for..

absolute configuration of in situ transition metal complexes of ligating natural products from circular dichroism

cottonogenic in situ derivatives of potential ligands with different transition metal complexes containing 2 or 3 metal atoms have been used for the purpose of 1) obtaining cd (circular dichroism) bands from non-absorbing compounds, and 2) to force flexible molecules into one preferred conformation. natural products whose stereochemistry ..

biotechnology of oilseed crops

a general summary of possibilities and limitations application of biotechnology processes to processing and/or production of fats and oils is presented. enzymatic processes, cloning of premium perennial oil crops and genetic manipulation of oilseed compositions are discussed. (author abstract) 7 refs