effect of prolonged soaking on the strength characteristics of lime stabilised black cotton soil

due to heavy precipitation during monsoons, the subgrade as well as the pavement layers are apt to be saturated if the drainage conditions are not satisfactory. this problem of saturation of subgrade and pavement layers becomes more acute in areas under canal irrigation, where the height and width of embankment is generally low, the subgr..

leaching phenomenon in lime-soil mix layers

field performance of many a lime-soil mix used as sub-base layers in the construction of road pavements has shown that such a layer starts deteriorating after some time. this weakening is more pronounced in the layer which is exposed either to upward fluctuations of the water table or infiltration of rain water. this is, in a large measur..

production function for cotton with dated irrigation quantities and qualities

a dynamic crop-water production function model is estimated for cotton. evapotranspiration (et) depends on soil moisture and soil salinity which in turn depend on irrigation volumes and qualities crop yield is a function of et. a maximum likelihood approach is developed for estimating the et function when moisture and et observations are ..

distribution of cross-sectional area, perimeter, circularity, and secondary wall thickness of different cotton fibers during growth

bolls from four cottons, one from each of the cultivated species g. arboreum, g. herbaceum, g. barbadense, and g. hirsutum, were picked at weekly intervals. cross-sectional area and perimeter were determined for 200 fibers of each of these samples, and secondary wall thickness and circularity were calculated cross-sectional area, circular..

never dried cotton fibers as a meaningful expression of maturity

a novel microscopical technique was used for direct measurement of the dimensions of never dried fibers, fibers swollen with water, and fibers swollen in sodium hydroxide. an extensive comparative study revealed that the original state of never dried fibers cannot be recovered when using seed cotton or bale cotton. no clear relation could..

skin friction and fabric sensations in neutral and warm environments

the influence of skin friction on the perception of fabric texture and pleasantness (acceptability) was studied by exposing eight men to a sequence of environmental conditions: neutral (comfortable), hot-dry, hot-humid, and return to neutral. the air and dew point temperatures (t//a:t//d//b) of these conditions were 23:15 $degree$ c, 35:1..

electrosweep - electrodynamic transportation of cotton trash

electrodynamic forces for moving waste or trash from beneath and around textile processing equipment are produced by a set of parallel electrodes encased in a plastic panel and connected to a polyphase source of ac power. such an apparatus is known as an electric curtain of the contact type, or more simply, an 'electric panel. ' when the ..

foliar washoff of pesticides by rainfall

several insecticides were subjected to simulated rainfall after application on octadecylsilanized/trimethylsilanized glass or foliar surfaces. flucythrinate fenvalerate, and azinphosmethyl showed 35-61 washoff by 25 mm of simulated rainfall, while methyl parathion loss was over 90 of that applied. washoff was initially rapid, but reached ..

peanut, soybean and cottonseed oil as diesel fuels

two single cylinder diesel engines burning three vegetable oils, and their blends with diesel fuel, were evaluated and compared to engines burning a reference diesel fuel (phillips 2). tests were conducted determining power output, fuel consumption, thermal efficiency and exhaust smoke. using the three vegetable oils and their blends with..

engine endurance with peanut, soybean, and cottonseed fuels

two single cylinder diesel engines with direct and indirect injection fuel systems, equippend with a dual-fuel provision were tested burning vegetable oil-diesel fuel blends to evaluate long term durability in comparison to that of the engines burning diesel fuel fuels with 10 to 25 (by volume) of vegetable oils performed satisfactorily a..