waste recycling attracts the cotton textile trade

waste recycling in cotton spinning and weaving mills has become more and more attractive in the last few years for several reasons: the cost of raw cotton has been rising steadily; waste recycling allows significant savings in the hard currencies used to buy the raw cotton; recycling reduces the costs of handling and disposing of the wast..

injury and yield response of cotton to chronic doses of ozone and sulfur dioxide

the relationship between the yield of cotton crop 'stoneville 213' and application of chronic doses of sulfur dioxide and ozone was investigated. 'stoneville 213' was exposed in open-top field chambers to five doses of o//3 (seasonal 7 h d** $minus$ **1 means from 0. 026-0. 104 $mu$ l l** $minus$ **1) and four doses of so//2 (seasonal 4 h..

early stage of hydrogeology in the united states, 1776 to 1912

until both the sciences of geology and engineering hydrology were far enough advanced to be of practical help, in the late 1800s, hydrogeologic progress was stymied. with the opening of the west in the late 1180s, hydrogeologic progress was stymied. with the opening of the west in the late 1860s the demand came. hydrogeologists were neede..

relative phytotoxicity of dicyandiamide and availability of its nitrogen to cotton, corn, and grain sorghum

the nitrification inhibitor, dicyandiamide (cyanoguanidine) (dcd), can improve fertilizer n efficiency; however, yield reductions and phytotoxicity from the use of dcd have been reported a greenhouse experiment was designed to determine the effect of dcd on growth, chlorophyll concentration and nutrient concentration of corn (zea mays l. ..

etude comparative de la combustion de l'huile de coton et du gazole a partir des releves de pression dans un moteur a chambres separees. $left bracket$ comparative study of cotton oil and fuel oil combustion by pressure monitoring in a separated chamber e

the authors present simultaneous data of pressure variations in both parts of the separated chamber of a diesel engine for fuel oil and cotton oil. the study of the curves shows the combustion differences for the engine fed with these two fuels. (author abstract) in french. 5 refs

moteur diesel alimente en huiles vegetales d'origine tropicale comparaison des performances et des emissions a l'echappement dans une application groupe electrogene. $left bracket$ tropical vegetable oils as diesel engine fuels: comparison of efficienci

the use of cotton seed oil and coconut oil as alternative fuel for diesel engine of an electric power plant has been tested. we have studied performances and exhaust emissions, which are the same for the three fuels tested, with a light increase of efficiency. the pah production, assumed to be precursors of soot and dangerous pollutants i..

investigation of the ignition and combustion of loosely compacted commercial steel wool

the ignition and combustion characteristics of loosely compacted commercial steel wool samples when introduced promptly into low velocity heated air streams and the morphology of the quenched residues were invetigated. the effects of the important factors of sample compactness, stream temperature and velocity, and exposure time were estab..

nylons: a review of the literature on products of combustion and toxicity

the literature on polyamides was reviewed to determine the nature and extent of information available on these materials which are commonly used in consumer and industrial applications. this review was limited to aliphatic polyamides normally called nylon typical pyrolysis products from a broad range of nylons do not appear to differ grea..

propagation characteristics in cd//1// $minus$ //xmn//x thin films prepared by icb method

the authors have studied applications of cd//1//-//xmn//xte semimagnetic semiconductors in thin-film waveguide devices. basic data that will be useful in fabricating optical isolators, as well as the results of calculations of waveguide characteristics are reported. the index of refraction, verdet constant, and magnetooptical birefringenc..

factors influencing chemisorption and ignition of wood chars

solid discs of cottonwood have been pyrolyzed under nitrogen to an appropriate temperature and then cooled under nitrogen to chemisorption temperature for study of oxygen chemisorption activity the following variables were studied, with the effects indicated presorption of nitrogen slowed the initial rate of oxygen chemisorption but had n..