scholarly journals HUMAN BODY CAD MODELING IN THE FORM OF A VARIABLE DENSITY OBJECT

2021 ◽  
Vol 1 (63) ◽  
pp. 106-114
Author(s):  
I. Sydorenko ◽  
◽  
V. Salii ◽  
S. Kovban ◽  
M. Kuzmych ◽  
...  

High rates of technological progress contribute to the development and improvement of all spheres of human activity, including biomechanical research. The development of new prostheses, orthoses and exoskeletons place increased demands on the determination of the mass-inertial characteristics of the human body. The paper analyzes the existing experimental-analytical and analytical methods for determining the center of gravity of the human body, which are based on the segmentation method. It is shown that the existing analytical methods do not provide complete information about the individual characteristics of the modeled object, when it is implemented using CAD tools, but give only generalized results without taking into account the physical development, health status and other individual characteristics. An improvement of the analysis technique is proposed, which allows increasing the accuracy of determining the mass-inertial characteristics of the human body (including the center of gravity) by its individual anthropometric parameters on the basis of a 14-segment biomechanical model. The article presents a block-diagram and description of the corresponding software module of the calculation, implemented in the Autodesk Inventor environment, in which the human body, when determining its center of gravity, is represented as a complex three-dimension object. This object consists of elements of different densities, while the data on the density of the constituent parts are obtained on the basis of the individual characteristics of the design object by interpolating information from external specialized databases. A comparative analysis of determining the coordinates of the center of gravity of a biological object using both the existing analytical and experimental-analytical segmentation techniques, and the proposed one is carried out. It is shown that the results obtained using the proposed improved analytical technique implemented in CAD, correlate very well with the results of the existing experimental analytical technique with a deviation of 3...4 %.

2017 ◽  
Vol 27 ◽  
pp. 5-21 ◽  
Author(s):  
Michael Pertsinakis

Research on visual feedback has not produced consistent results to show how visual feedback or the lack, thereof, influences individual handwriting characteristics. A two-pronged approach was designed to investigate the degree of this influence. For this purpose, samples of signatures as well as cursive and block text, written with and without visual feedback, were collected from 40 volunteers and imported into a PC via a pen tablet, using an electronic inking pen. The data was analyzed in a handwriting movement analysis software module specially designed for this research that was added to the software MovAlyzeR by Neuroscript LLC. Two forensic document examiners (FDEs) independently analyzed samples from the two groups (samples executed with normal visual feedback versus the group of samples executed without visual feedback). They found no fundamental differences between these two groups. Their analyses also demonstrated that a large number of similarities existed in the general design of the allographs (alternative forms of a letter or other grapheme) and in the pictorial aspects, regardless of the complexity of the samples. In the cursive and block handwriting, four main qualitative characteristics were linked to the absence of visual feedback: change of overall size, non-uniformity of left margins, change of baseline alignment, and inclusion of extra trajectories. The statistical analysis verified the above findings. The comparative analysis also suggests that gender, educational level (above high school) and handedness create an insignificant influence on the individual characteristics of writing produced with and without visual feedback. The only notable exception is the relationship between signature duration and educational level. The volunteers with a medium education level showed a significant increase in duration while signing their names without visual feedback in comparison to those with higher education levels. The combination of the above findings suggests that handwriting is not fundamentally influenced by visual feedback.  Purchase Article - $10


2021 ◽  
Vol 16 (6) ◽  
pp. 3232-3239
Author(s):  
Bakytbek Konakbayev ◽  
Raisa Bekembetova ◽  
Omirzhan Bekturganov

As a kind of sport, wrestling is characterized by a complex compositional nature of preparing, which requires equal attention to the development of the physical and functional qualities of an athlete. The aim of the study is to optimize the mode and algorithm of training loads of a competitive nature in the period of preparation. The effectiveness of the training process was evaluated by functional indices and blood lactate level not only at the end of training load, but also in the recovery period. In the process of the study also, pedagogical analysis was carried out, anthropometric parameters and analysis of body components were determined. The results of the study indicate the need for regular monitoring of the regime of loads in order to timely correction of the training process, taking into account the individual characteristics of wrestlers at the stage of pre-competition preparing. Keywords: competitive wrestling; freestyle wrestling; functional preparation; lactate; training process.


2021 ◽  
pp. 56-63
Author(s):  
T. S. Kochkonyan ◽  
V. V. Shkarin ◽  
D. A. Domenyuk ◽  
D. S. Dmitrienko ◽  
A. M. Potryasova ◽  
...  

Based on the results of morphological studies of the craniofacial complex, biometrics of plaster models of the jaws of 76 young people (18-25 years old) with asymmetry of dental arches, an algorithm was developed for modeling the predicted sizes of dental arches with their asymmetry in the diagonal direction. The methodological approach is based on the use of individual cephalometric indicators (diagonal and transverse face size), morphometric parameters of dental arches (incisor-molar diagonal, transverse intermolar arch size, dental arch depth) and stable correction factors for assessing the conformity (inconsistency) of real and predicted biometric data. Further stages of modeling the predicted sizes of dental arches with their asymmetry in the diagonal direction include the construction of incisor-molar and incisor-canine triangles, taking into account the anthropometric parameters of the maxillofacial region. The use of a diagnostically significant method in the clinic of orthodontics makes it possible to establish the topography of key teeth (canines, second molars) in the dental arch, taking into account the individual characteristics of the patient’s craniofacial complex. The implementation of the obtained results in clinical dentistry in patients with asymmetry of dental arches in the diagonal direction is advisable to substantiate the methods (extraction, without extraction) of complex treatment in order to achieve a functional balance of occlusal relationships, as well as optimal balance of morphological, functional and aesthetic characteristics. 


Author(s):  
M. M. Klunnikova

The work is devoted to the consideration of improving the quality of teaching students the discipline “Numerical methods” through the development of the cognitive component of computational thinking based on blended learning. The article presents a methodology for the formation of computational thinking of mathematics students, based on the visualization of algorithmic design schemes and the activation of the cognitive independence of students. The characteristic of computational thinking is given, the content and structure of computational thinking are shown. It is argued that a student with such a mind is able to manifest himself in his professional field in the best possible way. The results of the application of the technique are described. To determine the level of development of the cognitive component of computational thinking, a diagnostic model has been developed based on measuring the content, operational and motivational components. It is shown that the proposed method of developing computational thinking of students, taking into account the individual characteristics of students’ thinking, meaningfully based on the theoretical and practical aspects of studying the discipline, increases the effectiveness of learning the course “Numerical methods”. The materials of the article are of practical value for teachers of mathematical disciplines who use information and telecommunication technologies in their professional activities.


2021 ◽  
pp. 104-109
Author(s):  
Chernysh O.O.

The urgency of the researched problem is connected with the growing role of mass media in modern conditions leads to change of values and transformation of identity of the person. The active growth of the role of the media, their influence on the formation and development of personality leads to the concept of “media socialization” and immutation in the media. The aim of the study is to outline the possibilities of the process of media socialization in the context of immutation in the media. The methods of our research are: analysis of pedagogical, psychological, literature, synthesis, comparison, generalization. The article analyzes the views of domestic and foreign scientists on the problem of immutation in the media and the transformation of the information space. In the context of the mass nature of the immutation of society, the concept of “media socialization” becomes relevant, which is the basis for reducing the negative impact of the media on the individual.The author identifies the lack of a thorough study of the concept of “media socialization” in modern scientific thought. Thus, media socialization is associated with the transformation of traditional means of socialization, and is to assimilate and reproduce the social experience of mankind with the help of new media.The article analyzes the essence of the concepts “media space”, “mass media” and “immutation”. The influence of mass media on the formation and development of the modern personality is described in detail.The study concluded that it is necessary to form a media culture of the individual, to establish safe and effective interaction of young people with the modern media system, the formation of media awareness, media literacy and media competence in accordance with age and individual characteristics for successful media socialization. The role of state bodies in solving the problem of media socialization of the individual was also determined. It is determined that the process of formation of media culture in youth should take place at the level of traditional institutions of socialization of the individual.The author sees the prospect of further research in a detailed analysis and study of the potential of educational institutions as an institution and a means of counteracting the mass nature of the immutation of society.Key words: immutation, media socialization, mass media, media space, information.


Author(s):  
Olga Olegovna Eremenko ◽  
Lyubov Borisovna Aminul ◽  
Elena Vitalievna Chertina

The subject of the research is the process of making managerial decisions for innovative IT projects investing. The paper focuses on the new approach to decision making on investing innovative IT projects using expert survey in a fuzzy reasoning system. As input information, expert estimates of projects have been aggregated into six indicators having a linguistic description of the individual characteristics of the project type "high", "medium", and "low". The task of decision making investing has been formalized and the term-set of the output variable Des has been defined: to invest 50-75% of the project cost; to invest 20-50% of the project cost; to invest 10-20% of the project cost; to send the project for revision; to turn down investing project. The fuzzy product model of making investment management decisions has been developed; it adequately describes the process of investment management. The expediency of using constructed production model on a practical example is shown.


Author(s):  
Pavlo Rodionov ◽  
◽  
Anna Ploskonos ◽  
Lesya Gavrutenko ◽  
◽  
...  

The paper analyzes the factors that affect the amount of effort required to create a mobile application and its cost. It is established that the main factors of influence are the design of the application, its functionality, the type of mobile platform, the availability and level of testing and support, as well as the individual characteristics of the developer. Based on the analysis of information sources, the main methods and approaches to forecasting the cost of software products are identified, which include the COCOMO model, Price-to-win method, expert evaluation, algorithmic methods and the method of analogies. It is proposed to consider the method of analogies as a tool that allows you to make predictions about the cost of resources required for the successful implementation of IT projects based on the experience of similar projects. It is proved that the advantages of this method are the simplicity of its implementation and the clarity of the results obtained, which follows from the practical orientation of this tool. Among the limitations of the method of analogy is the mandatory need for reliable data relating to similar projects, as well as the difficulty of taking into account unspecified indicators. Taking into account the mentioned limitations of the method of analogies and on the basis of the analysis of scientific sources the possible directions of its optimization are determined. Thus, among the ways to improve the effectiveness of this method are those aimed at optimizing the project selection process, the data for which are used as a basis for forecasting. Attempts to improve the method of analogies by including parameters that were previously ignored by this technique seem promising. This in turn can lead to an expansion of the scope of the method of analogies and increase the accuracy of forecasts. As prospects for further research, the need to continue research in the field of optimization of the method of analogies with the subsequent practical verification of theoretical positions on the data of real projects.


2020 ◽  
pp. 140-146
Author(s):  
S. I. Chelombitko ◽  
V. V. Piven

During the development of oil and gas fields and transportation of hydrocarbons, the ecology of regions is subject to various negative impacts. The most severe consequences for the environment are caused by accidental spills of oil or petroleum products, which occur due to through damage to pipelines. Polluted territories are subject to mandatory reclamation in accordance with government regulations and industry regulations. However, despite the measures taken by the administrations of the northern regions to increase the rate of reclamation of damaged territories in recent years, there has been a trend of growth of areas contaminated with hydrocarbons.Various remediation technologies that have been tested in warm and temperate climates are not very effective in regions with permafrost. Pollution of the daytime surface with oil or petroleum products leads to an increase in the absorption of the sun's radiant energy, the growth of the seasonal thaw layer and the development of destructive processes for the territory. To achieve a positive effect as a result of rehabilitation measures, it is necessary to take into account the individual characteristics of the territory and the extent of its pollution.


2020 ◽  
Vol 16 ◽  
Author(s):  
Marcus Vinicius Martins Rubatino ◽  
Ana Laura Araújo Santos ◽  
Rayssa Araújo dos Santos ◽  
Magali Benjamim de Araújo

: Roxithromycin is one of the most frequently used macrolide antibiotics, a safe group of antimicrobials that acts against Gram-positive bacteria and some Gram-negative bacteria. It is sold in several countries in different dosage forms (tablets and capsules) and strengths (50, 100, 150 and 300 mg). Several analytical methods have been described to quantify roxithromycin in different matrices, such as biological and environmental samples and food. Identifying the main characteristics of the drugs and selecting appropriate analytical methods for their quantification are of paramount importance for understanding the behavior of drugs, metabolites and impurities. This review presents the physicalchemical and microbiological characteristics, properties as well as methods for quantification of roxithromycin in biological fluids, pharmaceutical preparations, food and environmental samples. HPLC coupled to various detection systems is the most used analytical technique to determine roxithromycin in these matrices. Although many analytical methods have been reported for the analysis of this drug, it is very important to include in this context a prospective view, in order to implement new analytical technologies for the quality control of this antimicrobial that contribute to the preservation of economic and environmental impacts.


Author(s):  
Viktoriya Yu. Ukhanova

In the pig breeding, a large share of the production cost is accounted for by the cost of electricity and heat. Reducing energy costs is one of the important tasks of the industry. It is important to identify and study modern technologies and equipment for pig farming due to the constant increase in electricity tariffs, significant energy costs for creating and maintaining a microclimate. (Research purpose) The research purpose is in an analysis of modern available technologies and equipment for agricultural production, including pig farming, allowing to reduce the cost of production. (Materials and methods) Authors used a method for determining the standard indicators of energy consumption of energy resources in the pig industry, based on the calculation and analytical method. The article presents an analyze of automated microclimate management systems in pig breeding complexes, taking into account the individual characteristics of farms produced by OWEN. (Results and discussion) Automated microclimate management systems can improve the productivity of pig farms; reduce the cost of electrical and thermal energy, reduce the number of diseases of animal from hypothermia, high humidity or temperature in the room, feed consumption; monitor the chemical composition of the air. The article considers three options for creating a microclimate in rooms with animals, taking into account the individual characteristics of enterprises. (Conclusions) The profitability of pig production depend on the level of technical equipment of farms, automation, and the use of energy-saving technologies and equipment. The use of innovations in agricultural production makes it possible to increase labor productivity up to three times, and savings due to reduced feed costs can reach several million rubles a year.


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