water accumulation in the alcohol extraction of cottonseed

the critical moisture content of cottonseed flakes extracted with an aqueous alcohol solvent can be defined as that flake moisture level at which the flakes lose no moisture during extraction. this study shows that the critical moisture content for aqueous ethanol (92, w/w) is 3. for aqueous isopropanol (88, w/w) this value is 6. if the m..

modeling mepiquat chloride-temperature interactions in cotton: the model

the plant growth regulator mepiquat chloride (1, 1-dimethylpiperidinium chloride) is used to reduce vegetative growth in cotton. it is commonly used to control the side effects of optimization of inputs such as water and nitrogen. it has been shown that mepiquat chloride (mc) suppresses excessive plant growth by decreasing plant height, n..

interpretation of vegetation indices derived from multi-temporal spot images

a temporal sequence of 15 spot high-resolution visible images and low altitude aircraft reflectance data wasre obtained over soil and cotton fields at the maricopa agricultural center, arizona, from april to october 1989. the spot data included different view angles ( $minus$ 28 $degree$ $minus$ $plus$ 24 $degree$ ), while the aircraft da..

conformational changes of hyaluronates with partial palmitoylation and the adsorption structures on the surface of oil droplets

the palmitoyl derivatives from hyaluronates, which were useful as new polysaccharide surfactants, were used to form complexes with toluidine blue (tb) in a similar manner to native hyaluronates however, the binding levels of tb decreased because the anionic sites of hyaluronates might be shielded by partially introduced palmitoyl groups. ..

donnan equilibria in wood-alkali interactions. part 3 theoretical modeling

wood-alkali interactions in aqueous solution were described with donnan equilibrium and ionic dissociation equilibrium theories theoretical models of three systems, naoh-h//2o-wood, naoh-nacl-h//2o-wood, and naoh-na//2co//3-h//2o-wood, were developed theoretical predictions fit experimental data well. the theoretical modeling also shows g..

the porosity of fluidized bed of grainy-fibrous materials

none of dependences known in literature for the calculation of granular material bed porosity permits precise calculation of grainy-fibrous material bed porosity. porosity of a bed of grainy-fibrous materials in the course of fluidization with the fluidization numbers k//w $equals$ 0-2.0 was studied. it is ascertained that during fluidiza..

studies on the swelling of cotton fibers in alkali metal hydroxides. iii. structure-property relations in fibers swollen at 0 $degree$ c

cotton fibers were subjected to swelling in various concentrations of lioh, naoh, and koh at 0 $degree$ c. swollen fibers were characterized by measurements of physical, mechanical, and fine structural properties. slack swelling in lioh and naoh produced tremendous changes in fiber properties. clear-cut swelling maxima, disorientation, an..

studies on the acid degradation of cellulosic fibres. i behaviour in hydrochloric acid-zinc chloride solutions

this paper studies the changes which occur in the physical and supermolecular characteristics of cotton cellulose on addition of zinc chloride during mild hydrochloric acid degradation to levelling off of the degree of polymerisation (lodp). both the rate and site of hydrolysis, as well as the supermolecular characteristics, are strongly ..

studies on the alkaline degradation of cellulose. iii. alkaline treatment in presence of anthraquinone

anthraquinone (aq) reduces the rate of alkaline degradation of cotton and bagasse celluloses. this is due to the stabilization effect of aq on the cellulose macromolecules. the d.p. values for the resulting oxycelluloses were in the order. alkali-aq-treated cotton $greater than$ alkali-aq-treated bagasse $greater than$ alkali-treated baga..

spatial and seasonal variation of furrow infiltration

infiltration was measured with a newly developed flow-through infiltrometer qq 27 sites in a 21 ha (52-acre) cotton field in the northern region of the san qq valley of california. the results were comparable with infiltration qq with a neutron probe. the infiltrometer allowed water to flow through the qq filtro meter when a rate test was..