scholarly journals Assessment of Selected Properties of Varnish Coating of Motor Vehicles

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1320
Author(s):  
Dariusz Ulbrich ◽  
Jakub Kowalczyk ◽  
Marian Jósko ◽  
Wojciech Sawczuk ◽  
Przemyslaw Chudyk
Keyword(s):  
Negative Impact ◽  
Motor Vehicles ◽  
Entire Body ◽  
Car Body ◽  
Varnish Coating ◽  
Vehicle Components ◽  
Vehicle Bodies

The technology and methods of testing the properties of varnish coatings used in motor vehicles are constantly and successfully developed. However, in the case of automotive varnish renovation coatings used in the repair of car bodies, the problem of fitting the quality of these coatings to the quality and current condition of the coating applied to undamaged vehicle components is not definitely solved. The main goal of the research was to determine the thickness and gloss distribution of the varnish coatings. The thickness and gloss of the varnish coating on the entire body of the vehicle were measured. Classical methods of assessing these properties were used. Defects in the renovation coating were also simulated, to show their negative impact on the varnish quality. The performed tests allowed for development of a procedure and algorithm for evaluation of the quality of the car’s renovation coating after the repair of the car body. The proposed procedure, expressed with the presented algorithm, allows to fit the obtained renovation coating to the quality and condition of the coating manufactured in factory on the car body in the range of its thickness up to 270 µm and gloss in the range of 5–90 GU. The developed procedure for the assessment of renovation coatings can be used in workshops that repair vehicle bodies. This will allow to improve the quality of renovation coatings and bring their properties, such as thickness or gloss, closer to those applied to the vehicle’s body at the factory.

Increasing the Durability of Roller-electrodes in Electrocontact Surfacing of Parts of Mobile Agricultural and Transport Equipment

2020 ◽  
pp. 133-139
Author(s):  
Viktor Dubovyk ◽  
◽  
Yurii Nevdakha ◽  
Viktor Pukalov ◽  
Vlvdyslav Chernov ◽  
...  
Keyword(s):  
Welded Joint ◽  
Negative Impact ◽  
Operating Conditions ◽  
Motor Vehicles ◽  
Transport Equipment ◽  
Repair Costs ◽  
Negative Effect ◽  
Hot Rolled ◽  
Traction Power

During the operation of mobile agricultural and motor vehicles, their connections and parts are activated. This leads to a decrease in traction power, operating speed, quality and productivity when performing technological operations. Repair costs are constantly rising, so the question of finding inexpensive technologies for the restoration of worn parts is relevant. Such technologies include electro-contact surfacing. One of the reasons that constrains the widespread use of the method of electrocontact surfacing is the low stability of the electrode roller. Currently, little research has been conducted to study the wear of the electrode rollers and increase their wear resistance. The research on search of ways of increase of durability of rollers-electrodes at electrocontact surfacing is carried out. The operating conditions of the electrode rollers and their operation, the strength of the welded joint when using a tool with different degrees of operation were considered. The operation of the roller-electrode during electro-contact surfacing has a negative effect on the strength of the welded joint of the metal coating with the base due to the reduction of deformation of the filler wire. The results of tests for operation show that a significant reduction in the quality of the welded joint occurs when using electrodes made of hot-rolled copper after 1.5...2 hours of operation. It is not possible to fully compensate for the negative impact of the electrode operation on the quality of the welded joint by adjusting the technological modes of surfacing. This indicates the need for 2 - 3 times the replacement of such tools, after grooving their working surfaces on a lathe. Developed recommendations for the choice of sizes of rollers-electrodes used in electro-contact surfacing of parts of mobile agricultural and transport equipment.

ANALYSIS OF MEASURES TO REDUCE ECOLOGICAL AND ECONOMIC DAMAGE FROM AUTOMOBILE TRANSPORT

2020 ◽  
Author(s):  
V.N. Kurdyukov ◽  
◽  
T.V. Lebedeva ◽  
Keyword(s):  
Resource Allocation ◽  
Negative Impact ◽  
The State ◽  
Point Of View ◽  
Motor Vehicles ◽  
Economic Damage ◽  
Agriculture Education

The article considers common classifications of measures to reduce environmentaleconomic damage from motor vehicles. Classification from the point of view of control impact is proposed, which allows to take into account relations between the state and citizens in the field of reduction of negative impact of motor vehicles on the environment. The analysis of the classification made it possible to identify areas of activity for improving the efficiency of management impacts, taking into account the incentives of citizens to comply with the requirements of the legislation and to create conditions for their exceeding. Increasing the efficiency of resource allocation in the Territory will allow the released funds to be allocated to the development of industry, agriculture, education and science.

Green Beans Cultivation Using Mice Pets Control to Improve the Quality of Bintaro Fruit Extract

2018 ◽  
Vol 1 (1) ◽  
pp. 38
Author(s):  
Ajeng Embri Legawati ◽  
Nur Azizah ◽  
Achmad Ramadhan
Keyword(s):  
Natural Resources ◽  
Negative Impact ◽  
Green Beans ◽  
Fruit Extract ◽  
Bean Plants ◽  
Cultivation Technology ◽  
Environmental Balance ◽  
The Impact ◽  
Chemical Pesticides

Green beans cultivation technology using mice pets control has been implemented in the Gluranploso village, Benjeng Gresik. The implementation of the technology performed for 2.5 months from August to October 2017. The purpose of the implementation is aimed to reduce the dependence of farmers on the use of chemical pesticides so that the farmers are aware of the negative impact of chemical pesticides. Assessing the impact of the utilization of Bintaro fruit and fruit extracts to explore ways of making Bintaro as a natural biopesticide to overcome rat attack on green bean plants in the Gluranploso village. Pest control mice can reduce the rate of loss of the crops more effectively and efficiently. Finally, with the use of those natural resources as a biopesticide material can also maintain the environmental balance

CHRONOBIOLOGICAL AND PSYCHOEMOTIONAL STATUS IN WOMEN WITH CHRONIC RECURRENT BACTERIAL CYSTITIS AND CARBOHYDRATE METABOLISM DISORDER

2020 ◽  
pp. 56-59
Author(s):  
Мария Николаевна Химичева ◽  
Андрей Владимирович Кузьменко ◽  
Владимир Васильевич Кузьменко ◽  
Тимур Асланбекович Гяургиев
Keyword(s):  
Chronic Disease ◽  
Carbohydrate Metabolism ◽  
Negative Impact ◽  
High Risk Group ◽  
Chronic Complications ◽  
Course Of Disease ◽  
Metabolism Disorder ◽  
Common Group ◽  
Tract Infections

Инфекции мочевых путей - наиболее распространённая группа заболеваний в практике врача уролога. Один из представителей является хронический рецидивирующий бактериальный цистит. Данное заболевание встречается во всех возрастных категориях и затрагивает все сферы жизни пациентов. Симптомы, возникающие при обострении хронического бактериального цистита, оказывают негативное влияние на качество жизни, что может приводить к нарушению психоэмоционального состояния больных. Отдельную группу высокого риска в отношении ИНМП составляют пациенты с нарушением углеводного обмена, у которых риск развития различных инфекций выше, чем у людей без подобных нарушений. К факторам, повышающим риск развития ИНМП у больных с нарушением углеводного обмена, относят возраст, компенсацию и наличие хронических осложнений, в первую очередь нефропатии и цистопатии. Человеческий организм функционирует циклически в соответствии с определенными индивидуальными ритмами. Любое хроническое заболевание приводит к рассогласованию процессов, протекающих в различных системах организма, вызывая развитие десинхроноза. Наличие у человека более 1 хронического заболевания утяжеляет течение болезни и приводит к снижению восстановительных способностей организма и сокращению его адаптационного потенциала Urinary tract Infections are the most common group of diseases in the practice of a urologist. One of the representatives is chronic recurrent bacterial cystitis. This disease occurs in all age categories and affects all areas of life of patients. Symptoms that occur with the exacerbation of chronic bacterial cystitis have a negative impact on the quality of life, which can lead to a violation of the psychoemotional state of patients. A separate high-risk group for INMP is patients with impaired carbohydrate metabolism, who have a higher risk of developing various infections than people without such disorders. Factors that increase the risk of developing INMP in patients with impaired carbohydrate metabolism include age, compensation, and the presence of chronic complications, primarily nephropathy and cystopathy. The human body functions cyclically in accordance with certain individual rhythms. Any chronic disease leads to misalignment of the processes occurring in various body systems, causing the development of DS, the Presence of more than 1 chronic disease complicates the course of disease and leads to a decrease in regenerative abilities of the organism and reduce its adaptive capacity

Modern challenges of border areas development in the context of decentralization reform

2019 ◽  
pp. 79-89
Author(s):  
Khrystyna Prytula ◽  
Yaroslava Kalat ◽  
Iryna Kyryk
Keyword(s):  
Ethnic Minorities ◽  
Negative Impact ◽  
Local Development ◽  
Economic Security ◽  
Uneven Development ◽  
Scientific Article ◽  
Border Regions ◽  
Border Areas ◽  
Decentralization Reform

An integral part of the implementation of any reform is the emergence of the risks of its negative impact on one or another area of region development. The decentralization reform in Ukraine is not an exception. In its the context the most probable occurrence of negative phenomena is in the border regions, which could be prevented by first detecting them. In the scientific article, the authors focus on the analysis of a number of challenges for the development of border regions in the context of decentralization reform. Given the territorial remoteness of the central regions of the country and the capital, which today serve as areas of concentration of investment and economic activity, the border regions traditionally (this is typical for the border areas of the EU member states) lag behind the rest of the regions by the main socio-economic indicators of development. Among the main challenges facing the border regions of Ukraine today are the following: the provision of competitiveness in the context of European integration processes and reduction of the border barrier function; low level of economic security; the outflow of human capital and the issue of ethnic minorities. Based on an expert survey of representatives of the fifteen united territorial communities (UTCs), the possibility of such risks of decentralization in the border regions were defined as following: groundless use of local budget funds; emergence of significant imbalances between delegated new authority and available financial resources of the community; increasing uneven development of territories within the community; increasing uneven development of communities within the country; deterioration of the availability and quality of providing educational and medical services; deterioration of the quality of local government; reducing of the state influence on the management of local development processes; radicalization of political unions representing the interests of ethnic minorities in places of their compact residence; further economic decline of the territory of communities and so on.

Perianal Hyperhidrosis Successfully Treated with Botulinum Toxin A

2021 ◽  
pp. 1-4
Author(s):  
Leandra Reguero del Cura ◽  
Marta Drake Monfort ◽  
Adrian De Quintana Sancho ◽  
Marcos Antonio González López
Keyword(s):  
Botulinum Toxin ◽  
Negative Impact ◽  
Botulinum Toxin A ◽  
Psychosocial Burden ◽  
Toxin A ◽  
Rare Form ◽  
Good Safety Profile ◽  
Degree Of Satisfaction ◽  
Botulinum Toxin Injections

Perianal hyperhidrosis (HH) is a rare form of primary focal HH and may become a major problem for the patient with a significant psychosocial burden and negative impact on the quality of life. Botulinum toxin injections are widely used as a second-line treatment option for axillary, palmar, and plantar HH with a good safety profile. Herein, we pre­sent a case of primary perianal HH successfully treated with Botulinum toxin A at a dose higher than that previously reported in literature, with a longer response, a higher degree of satisfaction, and no adverse effects. Moreover, we review the main aspects of the perianal anatomy that are essential to carry out the technique correctly and make dermatologists achieve expertise with the procedure.

scholarly journals Dynamic Quality of an Aerostatic Thrust Bearing with a Microgroove and Support Center on Elastic Suspension

Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1492
Author(s):  
Vladimir Kodnyanko ◽  
Stanislav Shatokhin ◽  
Andrey Kurzakov ◽  
Lilia Strok ◽  
Yuri Pikalov ◽  
...  
Keyword(s):  
Dynamic Characteristics ◽  
Negative Impact ◽  
Aerostatic Bearing ◽  
Elastic Suspension ◽  
Variable Parameters ◽  
Aerostatic Bearings ◽  
Improved Design ◽  
Dynamic Quality ◽  
Bearing Layer

The disadvantage of aerostatic bearings is their low dynamic quality. The negative impact on the dynamic characteristics of the bearing is exerted by the volume of air contained in the bearing gap, pockets, and microgrooves located at the outlet of the feeding diaphragms. Reducing the volume of air in the flow path is a resource for increasing the dynamic quality of the aerostatic bearing. This article presents an improved design of an axial aerostatic bearing with simple diaphragms, an annular microgroove, and an elastic suspension of the movable center of the supporting disk. A mathematical model is presented and a methodology for calculating the static characteristics of a bearing and dynamic quality indicators is described. The calculations were carried out using dimensionless quantities, which made it possible to reduce the number of variable parameters. A new method for solving linearized and Laplace-transformed boundary value problems for transformants of air pressure dynamic functions in the bearing layer was applied, which made it possible to obtain a numerical solution of problems sufficient for practice accuracy. The optimization of the criteria for the dynamic quality of the bearing was carried out. It is shown that the use of an elastic suspension of the support center improves its dynamic characteristics by reducing the volume of compressed air in the bearing layer and choosing the optimal volume of the microgroove.

scholarly journals COVID-19 Pandemic and Quality of Life among Romanian Athletes

2021 ◽  
Vol 18 (8) ◽  
pp. 4065
Author(s):  
Germina-Alina Cosma ◽  
Alina Chiracu ◽  
Amalia Raluca Stepan ◽  
Marian Alexandru Cosma ◽  
Marian Costin Nanu ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Trait Anxiety ◽  
Negative Impact ◽  
Well Being ◽  
Quality Of Life Scale ◽  
Life Scale ◽  
Personality Item ◽  
The Impact ◽  
The Relationship

The aim of this study was to analyze athletes’ quality of life during the COVID-19 pandemic. The study involved 249 athletes between 15 and 35 of age, M = 21.22, SD = 5.12. The sample was composed of eight Olympic Games medalists, three European medalists, 67 international medalists, and 63 national medalists. The instruments used were: (1) COVID-19 Anxiety Scale, (2) Athlete Quality of Life Scale, (3) Impact of Pandemic on Athletes Questionnaire, and (4) International Personality Item Pool (IPIP Anxiety, Depression, and Vulnerability Scales). The results indicate significant differences in COVID-19 anxiety depending on the sport practiced, F (9239) = 3.81, p < 0.01, showing that there were significant differences between sports. The negative impact of the COVID-19 pandemic mediates the relationship between trait anxiety and the athletes’ quality of life. The percentage of mediation was 33.9%, and the indirect effect was −0.11, CI 95% (−0.18, −0.03), Z = −2.82, p < 0.01. Trait anxiety has an increasing effect on the intensity of the negative impact of the COVID-19 pandemic, 0.23, CI 95% (.10, 0.35), Z = 3.56, p < 0.01, and the negative impact of the COVID-19 pandemic has a decreasing effect on quality of life, −0.47, CI 95% (−0.67, −0.27), Z = −4.62, p < 0.01. Gender and age did not moderate the relationship between the negative impact of COVID-19 and athletes’ quality of life. The results of the study highlighted the impact that social isolation and quarantine have on athletes’ affective well-being.

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