scholarly journals Using TeX Markup Language for 3D and 2D Geological Plotting

2021 ◽  
Vol 46 (1) ◽  
pp. 43-69
Author(s):  
Vasiliy Lemenkov ◽  
Polina Lemenkova
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Experimental Tests ◽  
Markup Language ◽  
Technical Application ◽  
Graphical Visualization ◽  
Compressibility Coefficient ◽  
High Level ◽  
2D And 3D ◽  
Logical Data

Abstract The paper presents technical application of TeX high-level, descriptive markup language for processing geological dataset from soil laboratory. Geotechnical measurements included equivalent soil cohesion, absolute and absolute deformation index, soil compressibility coefficient by time of immersion depth, exposure time to compressive strength to samples and physical and mechanical properties (humidity, density). Dataset was received from laboratory based experimental tests of the physical and mechanical properties of soils. Data were converted to csv table and processed by LaTeX. Methodology is based on LaTeX packages: {tikz}, {tikz-3dplot}, {tikzpicture}, {pgfplot}, {filecontetns}, {spy} for 3D plotting showing correlation in variables and descriptive statistical analysis based on the data array processing. Results demonstrated LaTeX scripts and graphics: 2D and 3D scatterplots, ternaries, bar charts, boxplots, zooming techniques detailing fragment of the plot, flowchart. Research novelty consists in technical approach of TeX language application for geo- logical data processing and graphical visualization. Engineering graphics by TeX was demonstrated with screenshots of the codes used for plotting.

scholarly journals Studying the similarities of deformation properties of leather materials in the process of creating a model of shoes

2020 ◽  
Author(s):  
Maryna Leshchyshyn Mykolaivna ◽  
Svitlana Stepanivna Garkavenko ◽  
Antonina Ivanivna Babich
Keyword(s):  
Mechanical Properties ◽  
Marketing Research ◽  
Physical And Mechanical Properties ◽  
Experimental Tests ◽  
Practical Significance ◽  
Preliminary Measurement ◽  
Parameters Selection ◽  
Wet Friction ◽  
Deformation Properties ◽  
The Individual

Determination of values and dependencies of deformation and physical and mechanical properties of materials of shoe models and finished products. According to the results of theoretical, analytical and marketing research, a number of experimental tests of materials have been carried out to prove the practical significance of the work, namely tests for: deformation of the vamp part of the product, uniaxial and biaxial stretching, bending, dry and wet friction, adhesion, elongation and tearing. There has been established the nature of the distribution of the total elongations of the samples of the vamps cut from different areas of the leather, as well as the ability of the leather material to be formed when improving the shape of the product or changing the shape of the shoetree. The processes of deformation of the vamp part of shoe blanks, physical and mechanical properties of different groups of modern materials and values analysis of similarity of their deformation properties have been studied. There has been created a working model-transformer for carrying out preliminary measurement of clients’ feet at the individual order. The expediency of these works has been proved experimentally. A working version of a model-transformer for foot measurements has been made and as a result of the works approbation, a sample of shoes has been made. The ergonomic properties of the manufactured footwear have been improved due to the use of materials with enhanced physical and mechanical properties. The article investigates the deformation of the most vulnerable vamp part of the men's model of a typical model, as well as the physical and mechanical characteristics of leather materials for manufacturing models and shoes of this type. Providing high quality and comfort of footwear, accuracy of parameters selection of foot measurement, zones of beams and achievement of form stability of footwear with a top from genuine leathers has been predicted.

scholarly journals ЕКСПЛУАТАЦІЙНІ ВЛАСТИВОСТІ ГОТЕЛЬНИХ МАХРОВИХ РУШНИКІВ

2021 ◽  
pp. 43-51
Author(s):  
А. С. Паршин ◽  
С. І. Арабулі ◽  
А. Т. Арабулі
Keyword(s):  
Mechanical Properties ◽  
Materials Science ◽  
Experimental Studies ◽  
Statistical Processing ◽  
Physical And Mechanical Properties ◽  
Basic Principles ◽  
Textile Materials ◽  
Textile Fabrics ◽  
High Level ◽  
Experimental Researches

Assessment of the providing level of hotel facilities by quality terry towels based on a comprehensive study of the operational properties of terry textile fabrics. Methodology. Theoretical and experimental researches are based on the basic principles of textile materials science. During experimental studies, modern methods were used to determine the physical and mechanical properties of textile materials, as well as methods of mathematical planning and statistical processing of the experimental results. Results. The state and norms for the provision of hotel facilities in Ukraine with terry towels are given. The assortment of hotel terry towels has been analyzed. The main factors of the formation of a modern assortment of textile materials for hotel terry towels are considered. The focus is on the classic range of double nap terry fabrics for hotel towels. The analyses of the physical and mechanical properties of modern fabrics for hotel towels are present. Indicators characterizing the interaction of textile with liquid moisture have been experimentally determined. The paper presents the results of determining the wear resistance of fabrics after 1, 5 and 10 cycles "wash-ironing". Scientifi c novelty. The data of the physical and mechanical properties of the classic assortment of textile materials for hotel terry towels are systematized. It has been experimentally proven that the assortment of cotton terry textile materials, which is currently available on the Ukrainian market and is used for the manufacture of hotel terry towels, provides a high level of comfort and durability of towels. Practical value. The modern assortment of textile materials for hotel terry towels is analyzed, taking into account the peculiarities of the operational situation of consumption.

Stereological Microstructure Description of Structural SiC Ceramics as Composite Material

2010 ◽  
Vol 65 ◽  
pp. 130-134
Author(s):  
V. Rumyantsev ◽  
Andrey Osmakov ◽  
S. Boykov ◽  
V. Fishev
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Composite Ceramic ◽  
Generalized Equations ◽  
Adequate Description ◽  
Continuous Component ◽  
Discrete Component ◽  
Sic Ceramics ◽  
High Level ◽  
Composite Ceramic Material

Within unified stereological approach the silicon carbide-based ceramics SiSiC , SSiC, and LPSiC are treated as binary compositions, that despite certain structure ordering differences might be similarly described as comprising topologically continuous component (that provides the high level of physical and mechanical properties), and a discrete component. The paper demonstrates the necessity of using dimensionless criterial parameters for adequate description of the integral microstructure ordering level; said parameters including the characteristics of both continuous and discrete components of the composite ceramic material. Generalized equations are derived for compound stereological parameters of the discussed materials, along with statistically reliable approximations of the strength characteristics as functions of these parameters.

New Tanning Agent with Montmorillonite for Leather Manufacturing

2017 ◽  
Vol 267 ◽  
pp. 52-57 ◽  
Author(s):  
Mariia Marukhlenko ◽  
Olena Mokrousova ◽  
Olena Okhmat
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Spectroscopic Studies ◽  
Collagen Structure ◽  
Modified Montmorillonite ◽  
Chromium Compounds ◽  
High Level ◽  
Ir Spectroscopic

The article is devoted to the investigation of the efficiency of chromium-modified montmorillonite dispersions to stabilize the collagen structure of the dermis. The interaction of modified dispersions of montmorillonite with collagen of the dermis was studied with the use of IR spectroscopic studies method. The high level of absorption of chromium compounds and their reduction by 30 % in the exhaust fluid was found. The use of montmorillonite dispersions provides qualitative formation of the structure of the dermis and physical and mechanical properties, with a reduction of tanning agents’ costs/waste by 16 %.

FDM-PRINTED FUNCTIONAL MATERIALS (review)

2021 ◽  
pp. 44-57
Author(s):  
S.V. Kondrashov ◽  
◽  
A.A. Pykhtin ◽  
S.A. Larionov ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Functional Materials ◽  
Polymeric Materials ◽  
Layer By Layer ◽  
High Level ◽  
Degree Of Filling ◽  
Hot Melt ◽  
Printing Method ◽  
Properties Of Composites

The paper provides an overview of studies carried out in the field of obtaining functional materials the FDM printing method. Data on the influence of the type of polymer matrix, filler composition, and FDM printing technological modes on the functional and physical-mechanical properties of composites are presented. It is shown that the technology of layer-by-layer hot-melt printing makes it possible to obtain polymeric materials with electrical conductivity from 10-2 to 1.4•105 S/m, to increase the thermal conductivity to 0.9 W/(m∙K), and to manufacture magnetoplastics. It is noted that to obtain a high level of functional properties, it is required to use polymer matrices with a degree of filling of 5–75 wt %, which inevitably leads to a significant change in the physical and mechanical properties and heat resistance of the material. Possible directions for further research in this area are indicated.

scholarly journals Modified supersulfated cements

2021 ◽  
Vol 62 (4) ◽  
pp. 340-348
Author(s):  
Leonid Dvorkin ◽  
Lyudmila Nihaeva
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Experimental Studies ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Experimental Tests ◽  
Early Age ◽  
Regression Equations ◽  
Mathematical Planning ◽  
Standard Tests

The paper presents the results of experimental studies of the possibility of obtaining modified supersulfate cements (SSC) with improved physical and mechanical properties on lowalumina blast-furnace granular slags. It has been shown in comparative experimental tests of the effect of admixtures of various sulfate activators that the highest strength of cements is achieved when using a phosphogypsum neutralized with lime. An additional activating effect has been established for supersulfated cements with the introduction of admixtures fluorides and, in particular, fluorides of magnesium, calcium and sodium silicofluoride. The additional introduction of hardening accelerators and their compositions with a superplasticizer into the SSC composition makes it possible to increase the compressive strength of cements at 28 days of age up to 60-65 MPa while achieving high strength at an early age. Along with standard tests, experiments were performed using mathematical planning with obtaining adequate regression equations.

scholarly journals The influence of liquid rubber on selected properties of rubber compound and its vulcanizates

2021 ◽  
Vol 1199 (1) ◽  
pp. 012038
Author(s):  
S Brigantová ◽  
M Pajtášová ◽  
R Janík ◽  
D Ondrušová ◽  
S Ďurišová
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Experimental Tests ◽  
Rubber Compound ◽  
Liquid Form ◽  
Liquid Rubber ◽  
Curing Characteristics ◽  
The Individual ◽  
Butadiene Styrene ◽  
General Conditions

Abstract The aim of the work was to determine the influence of liquid rubber on selected properties of rubber compound and its vulcanizates. Due to the liquid form of this rubber, it is not possible to completely replace the conventional solid rubber used in the mixture because of problems in further processing. In four experimental tests, we used different amounts of liquid rubber in the recipe together with butadiene-styrene rubber and the compounds we mixed according to the general conditions. We studied the curing characteristics of prepared mixture and we measuremend physical and mechanical properties of study vulcanizates and summarized the individual measured values for each parameter and suggested the greatest importance of the recipe for rubber practice.

Effective Wear Resistance Parameters of Ion-Plasma Tribological Coatings

2021 ◽  
Vol 410 ◽  
pp. 444-449
Author(s):  
Oleg V. Kudryakov ◽  
Valery N. Varavka ◽  
Dmitriy S. Manturov
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Structural Parameters ◽  
Physical And Mechanical Properties ◽  
Fundamental Difference ◽  
Oxidative Wear ◽  
Maximum Resistance ◽  
Ion Plasma ◽  
Tribological Coatings ◽  
High Level

Comparative studies of wear resistance during dry friction of vacuum ion-plasma coatings of nitride systems TiAlN and CrAlSiN are carried out. The structural parameters, coating thickness, and physical and mechanical properties were chosen as comparison parameters. A fundamental difference in the wear mechanisms of the coatings is demonstrated. In the TiAlN-system coatings develop an oxidative wear mechanism due to their insufficient heat resistance. The CrAlSiN-system coatings have maximum resistance to plastic deformation. And they are wear out according to the fatigue mechanism, which is typical for coatings with a high level of mechanical properties.

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