potassium: a new marker for washed cotton

data are presented which show that potassium salts are readily removed from raw cotton by washing the cotton with water. the potassium contents of cotton samples determined by ion-selective electrode, atomic absorption, and x-ray fluorescence methods confirmed that washed samples had low levels of potassium compared to unwashed samples. a..

stochastic recursive interactive programming model for farm firm policy analysis

a first-generation, farm level recursive interactive programming model for analyzing the impacts of commodity farm programs on typical farms (fliprip) is described and demonstrated fliprip uses a specialized linear programming algorithm (xmp) and the farm management-policy components of flipsim. a texas cotton farm is analyzed using stoch..

different types of foundations in isro projects

the civil engineering division of department of space which is responsible for providing all the facilities for research and development activities of indian space research organization (isro) has its activities in project sites located in different parts of the country. thumba in kerala, ahmedabad in gujarat, hassan and bangalore in karn..

measurement of the ir-ord of induced cholesteric solutions in presence of linear dichroism

the sign of absorption-induced cotton effects in the ir-ord spectra of induced cholesteric solutions allows us to distinguish between enantiometric solutes. it is shown here that the often distorted shape of these rotatory anomalies, sometimes making the evaluation ambiguous (in particular for highly diluted solutions), is due to the supe..

studies on the $beta$ -turn of peptides. vii. syntheses and antibiotic activities of gramicidin s analogs with l-pro-l-asn or l-pro-d-ala sequence at the $beta$ -turn part

two analogs of gramicidin s (gs), $left bracket$ l-pro**4**, **4 $prime$ , l-asn**5**,**5 $prime$ $right bracket$ -gs and $left bracket$ l-pro**4**,**4 $prime$ , d-ala**5**,**5 $prime$ $right bracket$ -gs were synthesized to investigate the possibility of replacing the $beta$ -turn part of gs by a different type of $beta$ -turn keeping th..

spectrophotometric determination of total gossypol in cottonseeds and cottonseed meals

a new spectrophotometric method for the determination of total gossypol content in cottonseeds and cottonseed meals has been developed. the method is based on the reaction of gossypol with 3-amino-1-propanol and its subsequent complexation with iron(iii) the green colored iron(iii)-bis-(aminopropanol)-gossypol complex has a characteristic..

streaming potential and electrokinetic coefficients of cellulose aqueous electrolyte solution systems

experimental results for the streaming potential of aqueous solutions of sodium chloride, calcium chloride, aluminum chloride and thorium nitrate across a pad of cotton wool are reported thermodynamics of irreversible processes has been frequently applied to the study of these phenomena in the linear as well as in the non-linear range, an..

single crystals of dye in cellulose fibers seen through electron microscope

crystallization of dye molecules in fibers is a controversial subject and is of great theoretical and industrial interest. high light-fastness and wash-fastness of some dyes and change of shade after soaping in vat dyeings of cellulose was assumed to be due to crystallization of dyes. previously, the authors reported electron diffraction ..

investment indicators for profitability analysis must reflect recent economic developments

several developments in recent years have increased the need to make profitability analyses for decisions on petroleum investment opportunities. some of these developments have also increased the hazards in using even time-tested investment indicators. these developments include major changes in the levels and variability of interest rate..

ionograph cleaning

an ionograph machine is used to clean printed circuit products the cleaning device comprises a tank containing a working fluid of alcohol and water, pumps to circulate the fluid, and ion exchange cartridges. the fluid is continuously circulated through the ion exchange resins to keep the fluid pure. in this way, printed circuit products i..