Nitrogen oxides are one of the most common and toxic gaseous air pollutants of large industrial centers. The main difficulty of cleaning gas emissions is related to the dependence of the efficiency of the applied cleaning technologies on the NOx concentration, the frequency of emissions, the need for processing and/or disposal of products of interaction of nitrogen oxides with absorbers and regeneration of catalysts. The article analyzes the features of currently used and promising methods of cleaning waste gases from NOx, systematizes data on the effectiveness of such technologies. Based on the analysis of the processes of formation of nitrogen oxides, rational approaches to reducing NOx emissions in metal etching technology and electroplating are proposed.

Keywords: nitrogen oxides, biogenic and technogenic sources, catalytic and non-catalytic purification, selective purification, absorption purification, comparative efficiency

An overview of the current state of the design of building objects is presented, and the possibilities for improving its quality are described based on the AutoCAD computer-aided design system, the development of which begins at the university level. Describes the sequence of building a plan for a one-story building using AutoCAD.

Keywords: Construction, design, project documentation, drawings, AutoCAD, engineering and computer graphics

A brief overview of the AutoCAD software product is presented, which is a universally recognized world leader in the field of graphical work automation and is gaining increasing popularity in our country. Using the presentation capabilities of AutoCAD, the authors created an electronic training program on engineering graphics, while solving a two-fold problem: on the one hand - to consolidate and popularize the classical educational material at the rate of engineering graphics; on the other - to instill in future engineers the skills of owning a modern "electronic kulman".

Keywords: AutoCAD, Autodesk, presentation, slide, script, engineering education, engineering and computer graphics

In this paper we construct complex econometric models, allowing to estimate the value of strategic risks when choosing a development strategy of industrial enterprise on the basis of imitation processes change the current profits and losses of the industrial enterprise in the face of uncertainty, including the assessment model laws distributions of profits and losses, both in the presence and in the absence of historical statistical data.
Keywords: strategic risk, in-house planning. industrial enterprise, risk ratio strategy.

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