Study of cooling properties new quenching media

The paper presents the results of testing the cooling capacity of a number of quenching oils using the device “IVF SMART QUENCH” of the company [[CHECK_DOUBLEQUOT_ENT]] IVF [[CHECK_DOUBLEQUOT_ENT]] (Sweden). The tests were carried out in order to expand the range of suppliers, to find alternative quenching media that match the cooling characteristics of traditionally used quenching oils. Both new and traditionally used quenching oils for volumetric quenching were tested. The cooling capacity characteristics of the Voltes 16 and Voltes 26 quenching oils were tested in comparison with the Thermo Oil 16 and Thermo Oil 26 oils used. The characteristics of Thermo Oil 16 and Thermo Oil 26 quenching oils in the “before operation” state (selected from storage tanks) were evaluated, and in the “during operation” state (selected directly from the quenching tanks). Based on the results obtained, the quenching media Thermo Oil 16 and Thermo Oil 26 produced by “TNK Lubricants” LLC in Ryazan are recommended for further practical use. The paper uses methods of statistical data processing to determine the characteristics of the stability of technological processes - the reliability and suitability indices.

Integration of MatLab and R with high-level languages using C# and Microsoft Visual Studio as an example

The paper discusses the technology of integration (providing a single interface of interaction) of different software systems working in a single environment. The levels of integration are indicated, the composition of subtasks (subsystems), which can be solved efficiently using various computing environments, are highlighted. The expediency of joint use of MatLab and R systems with high-level programming languages C ++ and C # is shown due to the limited or lack of tools for creating a convenient graphical user interface for mathematical systems, as well as the weak adaptability of programming languages for mathematical or statistical data processing and solving modeling problems. The aim of the article is to justify the most appropriate technology for integrating MatLab and R with highlevel programming languages to ensure high interaction efficiency and a user-friendly interface for complex mathematical or statistical data processing problems. The analysis of the possibilities and ways of solving the organization of interaction of MatLab and R systems with high-level languages carried out on the example of C # and the Microsoft Visual Studio environment. The possibilities of interaction of the R system and the MatLab system with highlevel programming languages, respectively, are considered. An example of software implementation of the integration of R and MatLab with a C# application is given. The capabilities of the developed program as a whole and the functionality of each of the subsystems used (R, MatLab and applications in C #) are indicated. The most preferable variant of integration of the considered systems - with the use of .NetFramework platform - is singled out. The advantages of using the Common Language Runtime for the implementation of the considered option of integrating R, MatLab and C # applications are noted.

Features of instrumental research methods in combination of endometrial hyperplasia with chronic endometritis

Annotation. Hyperplastic processes of the endometrium can be triggered by a chronic inflammatory process. In addition, the importance of the presence of a long hyperproliferative process in the endometrium to accelerate genome modification with significant negative consequences of the development of oncogynecological pathology has been proved. The above risks require the development of clear diagnostic criteria for endometrial hyperplastic processes at the stage of non-invasive instrumental diagnosis. The aim of the study was to establish the features of the impact of chronic endometritis on the risk of neoplastic endometrial processes. A study of 161 women aged 18 to 53 years. Of these, 58 women had a verified diagnosis of endometrial hyperplastic process, and 71 women had endometrial hyperplasia due to chronic endometritis. The control group consisted of 32 women without signs of hyperplastic processes and chronic endometritis. Statistical data processing was performed on a personal computer using Microsoft Excel spreadsheets and the application package Statistica for Windows v.7.0, StatSoft Inc. (USA). All obtained quantitative data were processed by the method of variation statistics. A significant increase in uterine size was found in patients with endometrial hyperplastic processes, an increase in M-echo in patients with a combination of chronic endometritis and endometrial hyperplasia. The control group consisted of 32 somatically healthy women. Statistical data processing was performed on a personal computer using Microsoft Excel spreadsheets and the application package Statistica for Windows v.7.0, StatSoft Inc. (USA). All obtained quantitative data were processed by the method of variation statistics. A significant increase in uterine size was found in patients with endometrial hyperplastic processes, an increase in M-echo in patients with a combination of chronic endometritis and endometrial hyperplasia. The basal artery resistance index was found to be lower in the group of women with chronic endometritis. Similar indicators are established for the values of the pulsation index of the basal arteries of the uterus and the state of the spiral arteries. Thus, the method of ultrasound diagnosis of internal female genitals is a highly sensitive and specific method for the diagnosis of hyperproliferative processes of the endometrium, but has limited informativeness for the diagnosis of chronic endometritis. The combination of ultrasound diagnostics with dopplerometry of uterine vessels and endometrium (with the development of appropriate diagnostic criteria) allows to suspect chronic endometritis at the stage of pre-diagnostic hysteroscopy and subsequent pathomorphological and immunohistochemical examination.

An Analysis of an Area’s Vulnerability to the Emergence of Land-Use Conflicts

The optimization of space is the priority goal of spatial planning. Spatial planning policies have numerous objectives, including the prevention of land-use conflicts. Conflicts arise whenever two entities have contradictory expectations regarding the surrounding space. In the process of spatial development, humans impart new characteristics to space, which, under specific circumstances, can give rise to land-use conflict. The elements of space that are particularly vulnerable to conflict include boundary points, property boundaries, density of development, or the shared use of infrastructure. The main aim of this study was to develop a procedure for evaluating the risk of land-use conflict based on the characteristic attributes of space. The proposed procedure for assessing the accumulation of conflict-generating traits in space was developed with the use of databases, GIS tools, and statistical data processing methods.

Peningkatan Kompetensi Dalam Menunjang Kinerja Karyawan Pada PT Batang Bumi Mandiri

Competence in an organization or company is important in supporting the performance produced by employees. The management of course will make efforts to increase the competence of its employees with the hope that the performance of the employees will make their work complete and the output produced is of high quality. Recognizing the importance of competence on performance, the authors helped by examining these variables. In this study the researchers collected data by distributing it to all employees at PT Batang Bumi Mandiri with a total of 25, of which the entire population will also be sampled because the sampling method used is the saturated sample technique. In processing this data used statistical data processing tools in the form of SPSS version 26 to assist the author in processing research data. The result of the research is that competence has an effect on performance. The competency variable also has a coefficient of determination of 16.5% to affect performance, while the remaining 83.5% is influenced by other variables not examined in this study.

Algorithm of complex anthroposcopic, anthropometric and dermatoglyphic research in forensic identification of an unknown person

The article presents materials and research methods that are used both to identify an unknown person and to predict a person's susceptibility to illegal actions of varying severity. In particular, this article describes anthroposcopic, anthropometric, dermatoglyphic methods, statistical data processing and neural network forecasting, which are widely used in modern forensics and forensic science. The relevance and objectives of the above research methods are formulated in order to predict a person's propensity to illegal actions of varying severity.

Feature of statistical data processing by computer mathematics systems tools

Processes of error accumulation were analysed during arithmetic operations on statistical data obtained in the course of research on oscillations in cross-field electron vacuum devices. The features of statistical data processing obtained as a result of experimental research were investigated using the most widespread computer mathematical packages. The features of statistical data processing were investigated by processing a sample of 80 values of the magnetron generation frequency using popular mathematical packages Excel, Maple, Matlab and MathCad and comparing the results obtained with calculations using theoretical formulas. Calculation results for all packages give the same results for mean, variance and standard deviation. As for the coefficients of skewness and kurtosis, most of the results do not coincide. Analysis of the calculation results showed that the difference in the obtained values ​​of the skewness and kurtosis is due to different definitions of these indicators in mathematical packages Excel, Maple, Matlab and MathCad. It is proved that in Microsoft Excel we cannot correctly construct a histogram without using additional operations, because the interval limits are calculated with errors. It leads to an incorrect determination of the number of elements into these intervals. To build correctly a histogram using the Excel package, it is necessary to calculate the interval limits in advance. It is concluded that before using computer mathematical packages for processing statistical data, it is necessary to analyze first by what formulas the required parameters are calculated and take appropriate measures to eliminate possible discrepancies with the parameters calculated using theoretical formulas.

FEATURES OF THE INFLUENCE OF CHEMICAL SUBSTANCES ON THE REPRODUCTIVE HEALTH OF MEN WORKING IN CHEMICAL INDUSTRIES

Introduction. A long exposure of chemical substances of low intensity can manifest itself in the form of impaired adaptability of the body, which may be accompanied by an increase in the frequency of erectile dysfunction in men. Purpose of the study: to study the features of the impact of chemical substances on the reproductive health of men working in the chemical industry. Мethods. 72 workers of a chemical enterprise were examined: an observation group - 49 men exposed to a chemical factor; comparison group - 23 engineering and technical employees of the enterprise administration who are not in contact with the studied harmful production factors. The following examinations were performed: hygienic, sociological, clinical, laboratory, statistical data processing. The survey was completed: hygienic, sociological, clinical, laboratory, statistical data processing. Results. According to the chemical factor, the class of working conditions at workplaces corresponded to class 3. 1 degree. Results of a handout survey: 14.2% - inflammatory diseases of the genitourinary system; 19.1% - seeking medical help for infertile marriages. (ICEF in the observation group 18.7, in the comparison group – 21. Analysis of the general incidence: 16.3% - diseases of the endocrine system. Analysis of laboratory data showed that reproductive dysfunction is formed in chemical workers as a result of dishormonosis against the background of detoxification and reproduction gene polymorphism. Conclusion. The exposure of a chemical factors contributes to the development of erectile dysfunction and disruption of spermatogenesis.

Bronchial Glands: Age, Regional and Individual Structural Features

The aim was to study the quantitative indicators and structure of the distribution of the glands in human main bronchi in the age aspect.Material and methods. The object of the study was the glands in the walls of the main bronchi, obtained as a single complex together with the lower part of the trachea, including the area of bifurcation. Samples were taken from 110 corpses of people in the age range from the neonatal period to 87 years (10 observations in each age group), who died from causes not related to the pathology of the respiratory system and did not have pathological changes in the respiratory system at autopsy. For micro-macroscopy using an MBS-9 binocular microscope, the glands in the walls of the main bronchi were selectively stained with methylene blue according to R.D. Sinelnikov, followed by fixation in a saturated solution of ammonium picric acid. The following characteristics were analyzed: the shape of the glands, their total number on the total preparation, the density of their location (the number of the mouths of the excretory ducts per 1 cm2), the width of their initial section. Due to the normal distribution of the data, the methods of parametric statistics based on the Statistica 6.0 program were used for statistical data processing. Statistical data processing included the calculation of the arithmetic mean indicators, their errors, the analysis of the amplitude of the variation series of each indicator was carried out.Results. The performed macro-microscopic examination revealed an asymmetry in the distribution of glands – the number and density of distribution of glands was 1.50–2.10 times higher (p <0.05) for the left bronchus than for the right and 1.56–2.91 (p <0.05) times more in the cartilaginous than in the membranous part. At the same time, the width of the orifice of the gland showed opposite patterns. In terms of age, there was an increase in the number of glands and their size with a maximum by the age of 21–35 and a subsequent decrease by senil age. The distribution density decreased throughout the entire period of life.Conclusion. The revealed age, regional and individual features of the structure of the glandular apparatus of the main human bronchi may be of interest both in scientific research and in clinical practice, forming a basic description of the structural norm.