performance of instrumented underreamed pile foundation supporting a single storey structure in expansive soil

in order to provide information on measured load transfers and to evaluate performance of 3.5 m deep underreamed piles, a detailed field study was carried out on full sclne instrumented piles in a black cotton-soil deposit having a swelling zone more than 3.5 m deep. two of the single underreamed piles supporting a single room at same sit..

biocorrosion in transformer oils

the acid value, surface tension, ph value of aqueous extract and oil color were measured in noninhibited transformer oils aged by microbial and thermooxidation effects. it is found that considerable microbial degradation of transformer oil occurs when free water is present in the oil. degradation is accelerated by the biological decomposi..

application of symbolic algebra to the generation of coordinate transformations

tools for automatic generation of generalized (variable and terrain-following) coordinate transformations are presented and the use of this technique in numerical models of atmospheric flows is explained. such a methodology should be competitive with the more commonly employed nested grid schemes. a symbolic (computer) algebra program for..

technical aspects of the cotton strip assay in soils

tensile strength loss from strips of cotton fabric (ctsl) inserted vertically into field soils is being used as an index of cellulose decomposition. examination of the technique for preparation and handling of strips before and after field placement, using five different soils, showed that sterilization by autoclaving is satisfactory prov..

use of a personal computer for the real-time reception and analysis of data from a sounding rocket experiment

in september of 1988, the earth and planetary atmospheres group of the space sciences laboratory of the university of california at berkeley flew an experiment on a high-altitude sounding rocket launched from nasa's wallops flight facility in virginia. the experiment, bears (berkeley euv (extreme ultraviolet) airglow rocket spectrometer),..

in vivo cutaneous and perceived comfort response to fabric part iii. water content and blood flow in human skin under garments worn by exercising subjects in a hot, humid environment

we studied stratum corneum water content, water evaporation from the skin surface, capillary blood flow, and skin temperature under three different garments worn by ten female subjects exercising and resting in a hot, humid environment (29.4 $degree$ c, 75 rh) single jersey knit fabrics made from 100 1.5 denier polyester, 100 3.5 denier p..

airflow through fiber plugs. part ii. obtaining cotton linear density and maturity from airflow data

from lord's data on solid fibers, we suggest a new equation for linking airflow data with fiber linear density, specific volume, and the form factor. we attempt to apply this equation to lord's data on 44 cottons. our results show that a single equation is sufficient to explain the airflow rates through plugs of different natural and man-..

in vivo cutaneous and perceived comfort response to fabric part i. thermophysiological comfort determinations for three experimental knit fabrics

using a modified kawabata thermolabo apparatus housed in a controlled environmental chamber, we obtained measurements of heat transfer through a specially selected set of jersey knit textile fabrics. we then used analytical models to compute thermal comfort limits based on the experimental values and predetermined estimates of human metab..

new thermal insulation materials for agricultural dewar vessels

thermal insulation materials for agricultural dewars for use in artificial insemination of agricultural animals were investigated the materials were based on paper with a variety of filler materials including basalt, synthetic, and organic fibers. the materials based on synthetic and basalt fibers have a high efficiency, although paper ma..

airflow through fiber plugs. part i. review of theory and its limitations

we have analyzed the extensive data provided by lord on the rate of air flow through plugs of cotton and a number of other fibers without lumena. some of these data comprise over a 200-fold range of air flow. we have shown that the data do not conform to the formulas for air flow through fiber plugs as developed by lord himself. the data ..