strengthening (hardening) of porcelain semifinished products using complex (multiple) additives

in this study the authors studied the strengthening (hardening) process of porcelain semifinished products using the phosphate additives along with the gel of microcrystalline cellulose. the gel of the microcrystalline cellulose consists of a microfibrous product (obtained during the hydrolysis of the waste products of cotton ginning indu..

evaluation of agricultural management applications in the rio grande valley using satellite imagery

a program to evaluate agricultural applications of multispectral satellite imagery in the rio grande valley is described. the primary application studied was that of monitoring defoliated cotton (gossypium hirsutum l.) stalk destruction for pink bollworm (pectinophora gossypiella $left bracket$ saunders $right bracket$ ) control. satellit..

transitional drop size distributions in gas agitated liquid-liquid dispersions

transitional drop breakage in lean gas-agitated liquid-liquid dispersions is described and a generalized correlation for predicting drop size distribution as a function of time is presented experiments were performed with three ternary dispersed phase systems: linseed oil $plus$ trichloroethylene-water-air, cottonseed oil $plus$ trichloro..

influence of microrelief, aggregate size, and precipitation on soil crust properties

the usda-ars is currently developing a new wind erosion prediction system (weps) to estimate wind-induced soil erosion on a daily basis. this new system will estimate several soil crust-related properties not used in previous wind erosion prediction methods. this study was conducted to determine the effects of selected temporally varying ..

soil erosion varies during the crop year

temporal variations in erosion rates and sediment size distributions were evaluated as affected by crop growth, soil condition, continued storm rainfall, and prior land use. erosion decreased by 90 between cotton emergence and post-harvest, largely due to increased plant canopy and surface residue cover. however, soil changes were also im..

experimental characterization of isotropic chiral composites in circular waveguides

this paper reports the first experimental characterization of microwave chiral composites in circular waveguides and the associated calibration that is required for accurate measurements. the experimental setup, sample preparation, calibration, measurement technique, and data analysis are discussed. results are presented in the form of ro..

study of cotton cellulose nitrates by the spin-probe method

the temperature dependence of the correlation times for the rotational diffusion of a spin-probe in cotton cellulose and in the products of its nitration has been studied. in all cases, the dependence consists of two sections of different slopes, the temperature corresponding to the change in slope increasing from 265 k for cellulose to 3..

polymeric chiral crown ethers. 8. synthesis of optically active poly(dibenzo-19-crown-6)s via cyclopolymerization of diepoxides

chiral diepoxides, (2r,18r)-( $minus$ )- and (2s,18s)-( $plus$ )-5,6:14,15-dibenzo-1,2:18,19-diepoxy-4,7, 10,13, 16-pentaoxanonadeca-5,14-diene $left bracket$ (r,r)-( $minus$ )-1 and (s,s)-( $plus$ )-1 $right bracket$ , were synthesized enantiomerically and polymerized with a lewis acid and koh. all the polymers obtained were soluble in c..

intrinisic second-phase particles in powder-processed mosi//2

mosi//2 has been produced by hot pressing of commercial and in-house powders and also by arc melting of pure molybdenum and silicon. it is shown that the 'glassy' phase observed in powder-processed mosi//2 consists of amorphous sio//2 and that formation of this phase is intrinsic to powder processing. in addition, the mo//5si//3 phase, wh..

environmental assessment and the mining industry. the consolidated professor case

the legal background for environmental issues, and the growing emphasis both from government and private concerns of corporate and management liability for environmental problems provides one of the driving forces behind the growing concern with environmental law for the future. one prime objective must be the identification and minimizat..