Power and Resourse Efficient Envoronmentally Safe Technology for Processing Dumps of Technogenic Waste From Ore-Dressing and Processing Enterprises

This research proposes a systematic approach for the analysis of volumes, physicochemical, granulometric, lithologic and thermal characteristics of waste from ore-dressing and processing enterprises stored in the dumps (tailing dumps) of ore-dressing and processing plants to assess the economic potential of its use in the system of complex power and resource efficient environmentally safe processing including palletizing machines, conveyor indurating machines and ore–thermal furnaces. The obtained results allow the authors to formulate the basic engineering, technological, economic and environmental requirements for complex chemical and power engineering systems of processing technogenic waste from ore-dressing and processing plants, these results make it also possible to define the degree of variability for the characteristics of the waste lots from various dumps. The paper describes the developed intensional and mathematical formulations for the multiscale problem of optimizing chemical and power engineering processes of technogenic raw materials processing in a complex chemical and power engineering system as a problem for discrete dynamic programming. The distinctive feature of this problem is to take into account the spatio-temporal multistage processing in a moving multilayer mass of pelletized raw material, the intensity of the process of internal moisture transfer and the variables for the control flow of the heat carrier gas. It allows increasing power efficiency by intensifying heat and mass transfer processes of multilayer drying, calcination and sintering. The criterion of the efficiency is the minimum cost of electric and thermal energy spent on processing. The obtained results were used to calculate power efficient environmentally safe processing of technogenic waste from ore-dressing and processing enterprises dumps. It was defined that heat and mass transfer processes are intensified, power consumption is reduced and the quality of the finished product is increased in the conditions of optimal power and resource efficient operation for the processing system. Keywords: tecnhogenic waste, waste processing, ore-dressing and processing plant, power and resource efficiency, optimization, system analysis, environmentally safet

Communicative Codes of Visual Nature for Business Communications

The use of communication codes for efficiency communication programming (infogramming) is an innovative approach to soft support for management decisions. This approach was proposed by Richard H. Thaler and named Nudge. However, the author of this approach did not offer efficiency tools for the practical application of this innovation in supporting solutions. We offer an author’s tool for the practical implementation of Nudge – infographic, so to speak- information programming of decision makers to transform decisions from the irrational field of the mind to the rational one through communication codes of a visual nature. The practitioners require communication code to form such communications. They are certainly different for divers target environment. Their identification requires complex marketing research. Recently, a scientific and methodological discussion has been held on the relevance of the results obtained through sociological surveys as a method of marketing research. In our opinion these discussions lead to a fair conclusion about the low relevance of the results of opinion polls due to a number of factors affecting this parameter. The most convincing explanations about the traps that the researchers introduce the method of opinion polls are reflected in the work of recognized authorities in marketing research. An alternative to the methodology of the opinion poll is the in-depth interview method, which assumes, in contrast to the method of opinion polls, a qualitative study that answers the questions of “how”, “in what way”, etc. At the same time, qualitative research has its own traps, consisting in a small number of respondents. As a rule, this number is about 3-6 people. For this reason, many researchers do not consider the results of such studies to be practically valuable. In this regard, the authors of this article face the task of proposing a hybrid method that is quantitative in terms of the number of respondents and qualitative in terms of avoiding the traps of social surveys. The authors confirm the practical value of the proposed hybrid method by comparing the results of quantitative and qualitative research methods of the same target environment. The metaphor extraction methodology proposed by Gerald Zaltman (ZMET) was used in order to escape the traps of quantitative research methods

Computer Modeling of Chemical-Microbiological Processes in Rhizomicrobiophytospheric System

Abstract: A computer model of chemical and microbiological production processes of plant biomass, soil microorganisms, and nutrients in the rhizosphere—a complex heterogeneous polydisperse multifactor natural system—has been developed, which makes it possible to determine the growth of the biomass of agricultural crops and the rhizosphere productivity. Parametric identification and the adequacy verification of the developed mathematical model have been carried out using the available experimental data sample on the growth of Krasnoufimskaya-100 spring wheat. Computational experiments have been carried out to determine the safe life of agricultural lands when fertilizers with varying degrees of heavy metal content are applied. © 2020, Pleiades Publishing, Ltd

Monte Carlo modelling of wet-chemical lithography with masks

We propose a Monte Carlo simulation of the etching process in two dimensions for the manufacture of microchannels and microcavities on a solid substrate. The method combines the effect of two different regimes based on diffusion-limited disaggregation and reaction-limited erosion, respectively. Besides, the role of the selectivity in site extraction is taken into account to foresee the effects of the temperature of the eroding bath. This technique proves to be a valid alternative to more complex analytical methods to describe surface decay processes in the presence of overhangs. The relevant geometries of the etched surfaces are analyzed, and other statistical properties of the cavities are discussed and compared to the ones predicted by continuum models