DESIGNING THE CONTENT OF GRAPHIC KNOWLEDGE IN THE CAD SYSTEMS ENVIRONMENT

The information support of the product life’s cycle requires to produce and to design this product with the help of the modern graphic CAD packages by creating an information model. In this regard, the question of the introduction of information technology in the educational process of the graphic training becomes relevant, as the basic graphic training forms the skills of graphic presentation of information. The purpose of the article is to substantiate the content of graphic training in institutions of higher technical education in conjunction with special software CAD-systems, including SolidWorks. The purpose of the study is to substantiate the content of graphic training in institutions of higher technical education in conjunction with the special software CAD-systems, including the SolidWorks. The methods of the research: analysis of the problems of future bachelors-mechanics’ graphic training, analysis of modern software for the graphic documentation, the generalization to obtain the conclusions and recommendations. The research results demonstrate that the development of modern software to solve problems of automation of three-dimensional design, the design and technological preparation of production of any complexity in various industries allows graduates to be competitive professionally in the labor market. We considered the graphic training in the environment of CAD-systems, also we highlighted the features of a special software SolidWorks-CAD. In the course of research of the content of basic graphic training that includes the descriptive geometry, the engineering and computer graphics in CAD-systems they revealed the most important factors in the formation of methods of mental activity of students. We consider that the most progressive method of the graphic training of engineers is to teach two courses instead of the three classic parts of basic graphic training. The effected research of engineering graphics and the peculiarities of the construction of working drawings in SolidWorks allowed to reconcile their relationship. The mastering of the modern software for solving of the problems of automation of three-dimensional design, the design and technological preparation of production of any complexity in various industries allows for graduates to be competitive professionally in the labor market.

Method of Modelling a Tank with Ribbing using a Spatial Scanner for Optimized Control of Volume Characteristics

Increasing requirements for product quality, whether from the side of technical standards or customers, generate demands on the optimization of measurement and data evaluation processes, which include also dimensional characteristics. The paper deals with determining the volume of the tank of a railway wagon with ribbing. In practice, volume flow meters are usually used to measure the internal volumes of manufactured tanks, which measure the volume of water when filled with water. The method is not only time-consuming but also energy-consuming and generates a large amount of wastewater. Therefore, these obsolete methods are gradually being replaced by those that allow effective inspection of tank wagon dimensions according to the technical documentation. The topic of the paper is a description and verification of the design of a progressive method of determining the internal volume of the tank using a spatial 3D scanner Faro FocusS150 and software processing of measured data. At the same time, verification of compliance with the requirements for the accuracy of determining the internal volume of the tank is presented. The aforementioned methods are therefore compared in terms of accuracy, complexity and time consumption.

Increasing the resource of agricultural machines

The object of research is the technological process of increasing the service life of pointed cultivator shares of tillage machines through the use of a progressive method of vibration hardening. One of the most problematic areas is the inadequate study of the investigated technological process of restoring the working bodies of agricultural machines. In order to gain a deeper understanding of the process of vibration processing of the material of these machine parts during their restoration, it is necessary to conduct further experimental studies. In the course of the study, it has been found that the use of vibration deformation of the surface layer of the material of parts contributes to an increase in their resource. The optimal parameters of vibration hardening of the cutting elements of the cultivator shares of tillage machines have been determined, which makes it possible to increase their durability. The main parameters of vibration hardening are revealed: the vibration amplitude of the processing tool is 0.75 mm; vibration frequency – 1400 min–1; hardening time – 30 s. As a research result, the assessment of the change in linear wear along the width of the cutting element of the cultivator duckfoot of tillage machines was carried out. In cultivators with tines restored by welding angle plates made of 45 steel (GOST 1050-2013, GB 699-88), sormite surfacing and vibration hardening, the linear wear rate by weight of cutting elements is 35–43 % less than in new tines. A study of changes in the wear of the cutting edge of cultivator shares was carried out, which, when restored by welding corner plates made of steel 45 (GOST 1050-2013, GB 699-88), surfacing with sormite and vibration hardening, is 1.57–1.68 times less than in new shares. In comparison with existing technologies, the developed technology provides a reduction in the wear of cutting elements by 10–17 %, in comparison with new ones made of 65G steel (GOST 14959-2016, GB 1222). The coefficient of technical utilization of the cultivator with tines restored according to the developed technology, in comparison with the new ones, is 1.07 times higher.

Important questions to ask when choosing hormonal contraception. Myths about contraception

Due to the introduction of modern methods of contraception in Europe and, in particular, in Russia, the abortion rate has decreased significantly. This is largely due to the use of such a progressive method as hormonal contraception. However, the level of use of modern methods of contraception in Russia remains low, which is often due to fear of side effects and existing myths, especially in relation to hormonal contraception. Combined oral contraceptives are well studied, have a favorable profile of efficacy and safety, the risks of taking them are minimal and are reflected in the instructions for use. When properly prescribed, hormonal contraception is a reliable method of protection against unwanted pregnancy, which also has additional benefits, including therapeutic effects.

Nonlinear theory of macroscopic flow induced in a drop of ferrofluid

We present results of theoretical modelling of macroscopic circulating flow induced in a cloud of ferrofluid by an oscillating magnetic field. The cloud is placed in a cylindrical channel filled by a nonmagnetic liquid. The aim of this work is the development of a scientific basis for a progressive method of addressing drug delivery to thrombus clots in blood vessels with the help of the magnetically induced circulation flow. Our results show that the oscillating field can induce, inside and near the cloud, specific circulating flows with the velocity amplitude about several millimetres per second. These flows can significantly increase the rate of transport of the molecular non-magnetic impurity in the channel. This article is part of the theme issue ‘Transport phenomena in complex systems (part 1)’.

The Carnival of the Mad: Foucault’s Window into the Origin of Psychology

Foucault’s participation in the 1954 carnival of the mad at an asylum in Switzerland marked the beginning of his critical reflections on the origins of psychology. The event revealed a paradox at the heart of psychology to Foucault, for here was an asylum known for its progressive method and groundbreaking scientific research that was somehow still exhibiting traces of a medieval conception of madness. Using the cultural expression of this carnival as a starting place, this paper goes beyond carnival costumes to uncover the historical structures underneath the discipline of modern psychology. Drawing on Foucault’s earliest works in psychology, his 1954 Mental Illness and Personality, his 1954 “Dream, Existence and Imagination,” his 1957 “Scientific Research and Psychology” and briefly his 1961 History of Madness, I will describe the discrepancy between the theory of modern psychology, which finds its heritage in the methods of modern science, and the practice of modern psychology, which finds its heritage in the classical age. I will argue that this division helps make sense of unexplained psychological phenomena, as seen in general practices related to artistic expression, and individual experiences, as seen in the presence of guilt and the resistance to medical diagnosis in patients.