production of carbonaceous adsorbents by using novolac-resin and cottonseed

mixtures of novolac resin with pressed cottonseed in different proportions after their curing as small cylinders, and also pressed cottonseed as powder were pyrolyzed to 1000 $degree$ c. the weight losses of the samples are much higher, up to 500 $degree$ c, while small weight losses are observed over 800 $degree$ c. the weight losses for..

sanitary and hygienic characteristics of air environment and microflora at a cotton plant

sanitary and hygienic conditions in shops of modern cotton plants do not entirely satisfy the hygienic requirements. the workplace air is characterized by elevated temperature, dust loading and microbial contamination. proceeding from the study of air contamination sources and causes, the recommendations on the improvement of air environm..

land spreading in the tennessee valley

in 1978, tva and florence, alabama, began a cooperative experiment to evaluate land application as a means of sewage sludge disposal and crop fertilization. the research included an evaluation of sludge effects on grund water and surface runoff and a documentation of growth responses by bermuda-grass, cotton, corn and soybeans. sludge app..

irradiation of solvent-treated cotton fibers

the infrared spectra and dielectric properties of cotton fibers pretreated for one day with toluene, methanol, and mixtures of the two have been investigated after drying the samples for 1 and 4 days the effect of $gamma$ -radiation on the crystallinity and dielectric properties of the solvent-treated was examined. the samples were irradi..

saving space and cost in power transmission

thirty years ago, transmission engineers still used v-belt drives, made from cotton, rayon and natural rubber. they deteriorated in storage, they were not very strong, but they worked, and they were the best available. in 1960, the wedge belt was introduced. belts made from neoprene reinforced with polyester lasted longer, were stronger, ..

neps in ginned lint: the effect of varieties, harvesting, and ginning practices

the effects of varieties, harvesting practices, and ginning techniques on the nep content of ginned lint were evaluated in a two year study in the mississippi delta. neps increased more with lint cleaning during ginning than with harvesting practices or varieties two stages of lint cleaning increased the neps in ginned lint from 15.9 to 3..

alternative bulking agent for sludge composting

the successful operation of in-vessel (mechanical) and windrow systems depends on the mixing of large amounts of sawdust bulking agent with sludge cake to increase the porosity and to adjust the moisture content of the composting mass. possible alternatives to sawdust include leaf and yard wastes, rice hulls, cotton gin trash, shredded wa..

spectral reflectance characteristics of cotton && rice in egypt

summary form only given. the objective of this study is to correlate ground bidirectional spectral reflectance data of cotton and rice field crops throughout their growing season with high-altitude remotely sensed data. using a hand-held spectroradiometer with four wavelength bands of the landsat multispectral scanner (mss) makes it possi..

one- and two-layer model for estimating evapotranspiration with remotely sensed surface temperature and ground-based meteorological data over partial canopy cover

surface-air temperature differences are commonly used in a bulk resistance equation for estimating sensible heat flux, h. this estimate of h is inserted in the one-dimensional energy balance equation to solve for the latent heat flux, le, as a residual serious discrepancies between estimated and measured le have been observed for partial-..

remotely sensed measurements of surface temperatures over sparse canopies

summary form only given. discussed is a study to compare ground-based and aircraft-based estimates of the composite surface temperature from measurements of sunlit and shaded soil and vegetation, develop a method of estimating soil heat flux and net radiation from remotely sensed data, and examine the spatial distribution of surface tempe..