scholarly journals Investigation of the influence of modification of the working tool for the manufacture of niobium case products

2021 ◽  
Vol 2094 (4) ◽  
pp. 042006
Author(s):  
E Yu Remshev ◽  
Z N Rasulov ◽  
S A Voinash ◽  
V A Sokolova ◽  
I A Teterina ◽  
...  
Keyword(s):  
Significant Proportion ◽  
Machine Building ◽  
Test Cycle ◽  
New Methods ◽  
Urgent Task ◽  
Main Production ◽  
The Stability ◽  
Cold Stamping

Abstract The main production of machine-building enterprises of various industries is the production of metal parts and products, 90-95% of which are manufactured using metal processing by pressure. Ensuring the stability of the technological processes of cold stamping is impossible without the use of interoperative coatings, which play the role of lubrication, preventing the diffusion “setting” (interpenetration at the atomic-molecular level) of the processed materials and tools. Therefore, one of the tasks in constructing the technology for manufacturing parts from these materials is to conduct a test cycle to establish the most acceptable coatings at the intermediate stages of processing. In the process of studying the operability and manufacturability, it is also advisable to use new methods for evaluating quality indicators at separate stages of processing semi-finished products and at the stages of control of finished products, which allows practically eliminating defects due to internal defects, ensuring the uniformity of the microstructure and predicting the operability of finished products during operation. Ensuring the quality of stamped semi-finished products made of refractory metals (niobium, molybdenum) is an urgent task due to the significant proportion of defects during cold stamping of these parts.

Structural and functional analysis of reconnaissance and fire system and decomposition of its functions and subsystems

2021 ◽  
pp. 38-48
Author(s):  
O. Maistrenko ◽  
O. Karavanov ◽  
A. Shcherba
Keyword(s):  
Functional Analysis ◽  
Fire Damage ◽  
Expert Group ◽  
Expert Evaluation ◽  
Military Conflicts ◽  
Main Factors ◽  
The Stability ◽  
The Impact

It is established that the role of reconnaissance and fire systems in the implementation of enemy fire damage in military conflicts occurring at the beginning of the XXI century. Increased  to 75%. However, it was found that the effectiveness of these systems depends on the quality of their equipment. The main factors that are often not taken into account in the acquisition are the possibility, interoperability, stability of each element, the impact of elements on the stability of each other and the functioning of the RVS as a whole. The analysis of recent research and publications has shown that as of today, the approaches to determining the composition of reconnaissance fire systems taking into account these factors are not justified. Given the above, it was decided to conduct a structural and functional analysis of the reconnaissance fire system and the decomposition of its functions and subsystems. To this end, based on the method of cluster analysis, an algorithm for combining a set of tasks performed by reconnaissance and fire systems into groups has been developed and substantiated. The method of expert evaluation was used to obtain substantiated data on the implementation of such a merger. According to the proposed algorithm, the main tasks were first identified, which involve reconnaissance and fire systems. Subsequently, an expert group was formed and the coefficient of relative competence of each member of the expert group was determined. The experts were then asked to combine the identified tasks according to their characteristics into an arbitrary number of groups. After processing the opinions of experts, 10 characteristic groups were identified. Finally, the experts were asked to combine the obtained groups in such a way that each association consisted of similar objects and the objects of different associations differed significantly. The results of the work revealed the functional interconnectedness of the tasks, processes and subsystems of the reconnaissance and fire system. It is also established that a typical reconnaissance fire system will consist of three subsystems (control, reconnaissance and fire influence), which perform specific functions for each of them.

scholarly journals The Role of Cultivation Systems in Quality Sugar Beet Production

2005 ◽  
pp. 134-138
Author(s):  
Kinga Diána Ungai ◽  
Zoltán Győri
Keyword(s):  
Sugar Beet ◽  
Production System ◽  
Plant Protection ◽  
Plant Production ◽  
High Yield ◽  
Yield And Quality ◽  
The Stability ◽  
Saccharose Content

Producing sugar beet, as it is a demanding field crop, has contributed to the raising standard of plant production. It has an outstanding place among the plants that are cultivated in the intensive plant production system. Rentability of sugar manufacture is determined by the stability of yield and the quality (saccharose content) of sugar beet. In this way, the fundamental interest both of the producers and the processing industry is high yield and quality, year by year. The yield and the quality of the sugar beet are mainly determined by the plant production system, so we studied the effect of fertilization, irrigation and plant protection.

scholarly journals PHILOSOPHY OF EDUCATION: NEWS AND MEDIA IN THE CONTEXT OF GLOBALIZATION OF CULTURE

2020 ◽  
Vol 67 (4) ◽  
Author(s):  
B.A. Amaniyazova ◽  
Keyword(s):  
Distance Learning ◽  
Education System ◽  
Philosophy Of Education ◽  
Media Culture ◽  
Quality Of Education ◽  
Methodological Issues ◽  
Urgent Task ◽  
The Impact

The only urgent task facing universities today is, of course, to ensure the highest quality of education. In his annual Address to the Nation, the First President Nursultan Nazarbayev said that, first of all, the education system should be raised to a new level. The proposed article considers the role of theoretical and methodological issues of education in the context of media culture in Kazakhstan. The impact of media education on the development of distance learning in the context of media culture is reflected.

scholarly journals Approach and models for using distributed ledger technology to authenticate educational documents

Doklady BGUIR ◽  
2020 ◽  
Vol 18 (7) ◽  
pp. 14-22
Author(s):  
D. A. Kachan ◽  
U. A. Vishniakou
Keyword(s):  
Public Administration ◽  
Third Party ◽  
Digital Documents ◽  
Distributed Ledger ◽  
Distributed Ledger Technology ◽  
Urgent Task ◽  
Block Chain ◽  
Structural Solutions

The purpose of this article is to analyze methods, approaches, and tools of distributed ledger technology (DLT) for working with documents in education. The objectives of the article are to analyze problems with the authentication of educational documents, develop new structural solutions using block chain technology, consider two models, and evaluate their use for educational documents.Authentication of educational documents is carried out using state registers, which is a complex and resource-intensive process. There is an increase in the number of forged documents in the world, which calls into question the effectiveness of modern mechanisms. Distributed ledger technology (block chain) is a sustainable technological trend that affects the development and quality of the digital economy. The existence of a mechanism for verifying the authenticity of educational documents that is resistant to malicious manipulation is an urgent task that goes beyond the sphere of education, possible solutions to which are proposed to be considered in this paper.The article provides a brief description of DLT and considers the approach of using the technology to authenticate educational documents. It consists of two main stages: the issue of a digital educational document and its verification. The role of a trusted third party in the issue and validation process is considered. The paper presents the models for issuing and validating digital documents based on distributed ledger technology, which allows one to eliminate the limitations and shortcomings of existing approaches. The effectiveness of the approach based on the proposed models is revealed. The formulated approaches can be applied in various socio-economic areas and public administration to work with similar documents.

Party Systems: Types, Dimensions, and Explanations

2020 ◽  
Author(s):  
Zsolt Enyedi ◽  
Fernando Casal Bértoa
Keyword(s):  
Party System ◽  
Balance Of Power ◽  
Party Systems ◽  
Party Competition ◽  
System Stability ◽  
Informal Institution ◽  
Democratic Experience ◽  
The Stability

The study of political parties and party systems is intimately linked to the development of modern political science. The configuration of party competition varies across time and across polities. In order to capture this variance, one needs to go beyond the analysis of individual parties and to focus on their numbers (i.e. fragmentation), their interactions (i.e. closure), the prevailing ideological patterns (i.e. polarization), and the stability of the balance of power (i.e. volatility) in all spheres of competition, including the electoral, parliamentary, and governmental arenas. Together, these factors constitute the core informal institution of modern politics: a party system. The relevant scholarship relates the stability of party systems to the degree of the institutionalization of individual parties, to various institutional factors such as electoral systems, to sociologically anchored structures such as cleavages, to economic characteristics of the polity (primarily growth), to historical legacies (for example, the type of dictatorship that preceded competitive politics) and to the length of democratic experience and to the characteristics of the time when democracy was established. The predictability of party relations has been found to influence both the stability of governments and the quality of democracy. However, still a lot is to be learned about party systems in Africa or Asia, the pre-WWII era or in regional and/or local contexts. Similarly, more research is needed regarding the role of colonialism or how party system stability affects policy-making. As far as temporal change is concerned, we are witnessing a trend towards the destabilization of party systems, but the different indicators show different dynamics. It is therefore crucial to acknowledge that party systems are complex, multifaceted phenomena.

Neuroimmune mechanisms of pruritus in atopic dermatitis

2022 ◽  
pp. 12-16
Author(s):  
Y. A. Kandrashkina ◽  
E. A. Orlova ◽  
A. A. Pribytkov
Keyword(s):  
Quality Of Life ◽  
Atopic Dermatitis ◽  
Skin Disease ◽  
Neurogenic Inflammation ◽  
New Methods ◽  
Neuroimmune Interactions ◽  
High Prevalence ◽  
Depth Study

Atopic dermatitis is a chronic hereditary recurrent skin disease. One of the most pronounced symptoms of this dermatosis is itchy skin. Pruritus accompanies atopic dermatitis in more than 80% of cases. This review presents modern data on the mechanisms of pruritus formation in atopic dermatitis. The issues of etiological factors, neuroimmune interactions, peculiarities of skin dysfunction, as well as the role of stress are considered. The relevance of studying the topic is due to the high prevalence of atopic dermatitis among the population, a decrease in the quality of life and the lack of effective therapy. Analysis of the literature indicates the need for a comprehensive assessment of the pathogenetic mechanisms of the development of pruritus in atopic dermatitis. A more in-depth study of the mechanisms of neurogenic inflammation in atopic dermatitis will contribute to the development of new methods of diagnosis and treatment.

A Chemism Analysis of Alkali in the Chemical Mechnical Polishing Process of SiC Substrate

2014 ◽  
Vol 1027 ◽  
pp. 208-212
Author(s):  
Jian Guo Yao ◽  
Li Jie Ma ◽  
Su Fang Fu ◽  
Zhan Kui Wang ◽  
Jian Xiu Su
Keyword(s):  
Removal Rate ◽  
Chemical Characteristic ◽  
Material Surface ◽  
Polishing Process ◽  
Organic Bases ◽  
Crystal Substrate ◽  
Ph Modifier ◽  
The Stability

In this study, according to physic-chemical characteristic of the SiC crystals, we analyzed and researched the role of pH modifier in SiC crystal substrate chemical mechanical polishing and the surface after polishing. We used different polish agents which was made up with inorganic and organic bases to experiment, and then analyzed the results. The parameters of the polishing specimen, such as the removal rate of material, surface scanning and the roughness, were analyzed and used to determine the different pH modifiers played different roles in the stability of polish agents and surface quality of the specimen.

scholarly journals Parliamentary control in the spheres of spirituality and culture: security aspec

2021 ◽  
pp. 9-20
Author(s):  
I. KORZH
Keyword(s):  
National Security ◽  
Russian Federation ◽  
State Power ◽  
The State ◽  
Social Changes ◽  
Urgent Task ◽  
The Russian Federation ◽  
The Stability ◽  
Further Development

This article examines the issue of the effectiveness and quality of the implementation of parliamentary control in the spheres of spirituality and culture, as an aspect of ensuring national security in the modern conditions of the hybrid aggression of the Russian Federation against Ukraine. It is noted that parliamentary control in Ukraine is extremely insufficient and rather contradictory, which does not yet allow to talk about the stability of parliamentary control as such, about its proper scientific understanding and legal consolidation in modern conditions, especially in the context of the hybrid aggression of the Russian Federation against Ukraine. It was stated that social changes caused by globalization processes affect the state of ensuring national security in such spheres as culture and spirituality. Currently, this issue has not been studied enough, and therefore needs further development. It was noted that in the field of culture, certain positive changes in the implementation of state (parliamentary) control have been achieved in recent years. However, in the sphere of spirituality (spiritual culture) and in the related religious sphere, as a result of the ideological sabotage and special informational operations carried out by the Russian Federation, a spiritual crisis has actually been generated in Ukraine, the resolution of which is an urgent task of the state power. Parliamentary control in these areas, which should be carried out through the prism of national security, is virtually absent. A number of proposals have been worked out, which are advisable to be introduced into the process of exercising parliamentary control over the aforementioned spheres.

scholarly journals Efficiency improvement for assigning of cutting conditions on the basis of the thermo-EMF signal

2018 ◽  
Vol 224 ◽  
pp. 01067 ◽  
Author(s):  
Zhanna Tikhonova ◽  
Dmitriy Kraiynev ◽  
Evgeniy Frolov
Keyword(s):  
Production Control ◽  
Front Surface ◽  
Machine Building ◽  
Experimental Proof ◽  
Information Signal ◽  
Cutting Zone ◽  
The Stability ◽  
Natural Thermocouple ◽  
Control And Management

In the realities of modern machine-building production, control and management of processes occurring in the cutting zone are of great importance. The acquisition of control will significantly improve the stability and quality of processing, and the possibility of monitoring will help to increase the economic efficiency of production. This article presents the potential of the thermo-emf signal in a natural thermocouple “tool – workpiece” which is considered to be an information signal from the cutting zone. It also shows experimental proof of the influence between honing width on the front surface of the tool and its size.

scholarly journals New opportunities for treatment of severe bronchial asthma: from clinical studies to portraits of patients

2015 ◽  
Vol 12 (3) ◽  
pp. 51-61
Author(s):  
N M Nenasheva
Keyword(s):  
Quality Of Life ◽  
Severe Asthma ◽  
Bronchial Asthma ◽  
Significant Proportion ◽  
Poor Quality ◽  
New Class ◽  
Definition Of ◽  
First Time

The proportion of patients with controlled asthma has increased over the last 15 years, however, still there is a significant proportion of patients who do not achieve control of the disease, and therefore have a high risk of exacerbations, hospitalizations, and poor quality of life. Patients with severe asthma, for which there were limited additional pharmacotherapy are the major problem. For the first time in recent years in the treatment of asthma a new class of drugs appeared: longacting anticholinergics - tiotropium which had been entered in stepwise therapy of asthma by GINA 2015. The definition of severe asthma, the role of the cholinergic nervous system in bronchial asthma, mechanism of action and clinical efficacy of tiotropium in severe bronchial asthma adults are described in the article.

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