features of the structure of some components of oxidized peat wax

it has been shown previously that oxidation with nitric acid of nitrogen dioxide changes the chemical structure of the peat in the direction of increasing its exchange capacity, enables the yield of wax from it to be increased 2- to 2. 5-fold, and enriches it with acids. in the present work the authors have investigated the changes in the..

elongation coefficient and tensile stresses over width of strip as function of lubricating conditions

a new strip-rolling technology comprises use of a standard lubricant over the center of the strip but a lubricant with a higher efficiency (polymerized cotton-seed oil) on the edges. this method reduces longitudinal tensile stresses at edges

photodecomposition of gossypol by ultraviolet irradiation

the present investigation was designed to study the degradation of gossypol as a thin film upon exposure to ultraviolet radiation also studied was the effect of various solvents on the rate of decomposition of gossypol when irradiated in solution. this study demonstrates that gossypol is sensitive to degradation by ultraviolet light. ther..

effect of additions of oligomeric epoxides on the physicochemical properties of cellulose acetates

the authors examine the effect of small additions (0. 5-10 by wt. ) of oligomeric epoxides based on polyethylene oxide and epichlorohydrin having an epoxide group content of 8-15 on the rheological and optical properties of concentrated ca solutions, and also on the thermophysical and mechanical properties of ca films. as modifiers the au..

production of particle boards from cottonseed hulls

a process for the utilization of cottonseed hulls for the production of particle board is described. in this process, cottonseed hulls are reduced in size, mixed with a suitable resin binder and catalyst and pressed between the heated platens of a press under known pressure and temperature to form the boards. the effects of resin concentr..

tricresyl phosphate retention by bearing retainer and reservoir materials

tricresyl phosphate (tcp) is an important extended-pressure additive in lubricating oils. its depletion from reservoir oil could constitute a failure mechanism for bearing systems. the interaction of tcp with bearing retainer and reservoir materials was investigated using an apparatus that mimicked centrifugal oil feed. tcp was not select..

nature and incendiary behaviour of spark discharges from textile surfaces

the present work concerns the determination of the charge in single spark discharges from selected textile fabrics and the incendiary behavior of such sparks in the presence of stoichiometric mixtures of natural gas and air and hydrogen and air. the results have shown that under certain conditions sparks from a polyester and a cotton fabr..

time series analysis: theory and practice 4, proceedings of the international conference (8th international time series meeting and 3rd american conference)

the proceedings contains 28 papers. some of the topics discussed are: seasonal adjustment evaluation from the residuals; rank tests for randomness against autocorrelated alternatives; multiple time series modeling of macroeconomic series; a vector time series analysis of cotton-polymers price competition; subject transfer function model f..

hyperfine properties of tb**3** $plus$ : lacl//3

highly resolved optical spectra, obtained using laser-induced fluorescence techniques, have allowed determination of the magnetic-dipole and electric-quadrupole parameters of the 4f**8 configuration. 2 refs

soil populations of rhizobium japonicum in a cotton-corn-soybean rotation

the ability of legume root nodule bacteria to live in soil in the absence of host plants has great practical value. since soybean $left bracket$ glycine max (l. ) merrill $right bracket$ is extensively grown and its value is largely dependent upon effective n//2 fixation, it is important to develop an understanding of the ecology of its n..