Features of the photoconductivity of iodine-doped cotton fibers illuminated in the fundamental absorption range

The photoelectric properties of cotton fibers treated with iodine were studied in the fundamental absorption range. The samples exhibit a sublinear illumination-current characteristic and a long-term relaxation of photoconductivity (PC) after UV irradiation (hν=5 eV) of the iodine-doped fibers. A PC mechanism is proposed which explains both the nonlinear variation of photocurrent with illumination intensity and the PC decay according to a bimolecular recombination law after UV irradiation of the iodine-doped fiber in the fundamental absorption range.     

Creation and electrical properties of p-Cu2ZnSnS4/n-Si heterojunctions

Technical Physics Letters - Anisotype p-Cu2ZnSnS4/n-Si heterojunctions have been manufactured for the first type by sulfidation of base-metal layers predeposited onto polycrystalline silicon...     

Chemical cross-linking of carboxymethylated viscose yarns

Conclusions The parameters of chemical cross-linking of yarns based on carboxymethylcellulose (CMC) and their physicomechanical properties depend on the concentration of the cross-linking agent — formaldehyde — the catalyst concentration, and also on the reaction temperature and time.A bound formaledhyde content of 0.5% by wt., in the form of methylene bridges in the make-up of CMC yarns, leads to a 31% increase in their strength in the wet state.Chemical cross-linking of CMC fibres with formaldehyde helps increase their resistance to biodegradation and correspondingly leads to a larger strength retention in living organisms.Translated from Khimicheskie Volokna, No. 5, pp. 18–20, September–October, 1989.     

Theoretical and Practical Foundations of the Selective Separation of Phosphate Ions from Phosphate Ores with a High Content of Iron Impurities with the Recirculation Method

Theoretical Foundations of Chemical Engineering - Calculations and experimental analysis of phosphate ores contaminated with Fe(III) compounds showed that advanced processing of these ores in a...     

Technology for the Purification of Electroplating Washwater from Cadmium Ions by Membrane and Membraneless Electrolysis

Theoretical Foundations of Chemical Engineering - A technology for removing toxic Cd2+ from electroplating process electrolytes and washwater containing $${\text{SO}}_{4}^{{2 - }}$$ or Cl– is...     

Reach a nonlinear consensus for MAS via doubly stochastic quadratic operators

This technical note addresses the new nonlinear protocol class of doubly stochastic quadratic operators (DSQOs) for coordination of consensus problem in multi-agent systems (MAS). We derive the conditions for ensuring that every agent reaches consensus on a desired rate of the group's decision where the group decision value in its agent's initial statuses varies. Besides that, we investigate a nonlinear protocol sub-class of extreme DSQO (EDSQO) to reach a consensus for MAS to a common value with nonlinear low-complexity rules and fast time convergence if the interactions for each agent are not selfish. In addition, to extend the results to reach a consensus and to avoid the selfish case we specify a general class of DSQO for reaching a consensus under any given case of initial states. The case that MAS reach a consensus by DSQO is if each member of the agent group has positive interactions of DSQO (PDSQO) with the others. The convergence of both EDSQO and PDSQO classes is found to be directed towards the centre point. Finally, experimental simulations are given to support the analysis from theoretical aspect.