bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of the method of structural-parametric synthesis of the subsystem of interference of special purpose radio communication systems
Authors: Shyshatskyi Andrii , Hasan Vitalii , Hasan Anatolii , Kravchuk Serhii , Shidlovsky Yuriy , Opalak Andrii , Modlinskyi Oleksandr , Kobylynskyi Oleksii , Bezstrochnyi Ihor , Onbinskyi Yaroslav 
Published: July 2021

The object of research is the military radio communication system. One of the most problematic areas in the management of military radio resources is the interference of military radio systems and facilities. A number of works have been devoted to the research of ways to increase the noise immunity of military radio communication systems and facilities. However, the known works contain some results of research by scientists aimed at increasing the noise immunity of military radio systems and facilities and do not have a comprehensive approach. In this article, the problem of developing a method of structural-parametric synthesis of the noise protection subsystem of special purpose radio communication systems is solved.
The scientific problem is solved by formalizing the problem of structural-parametric synthesis of the noise protection subsystem of military radio communication systems, starting with its mathematical description and synthesis of the quantitative and qualitative structure of the noise protection subsystem. In the course of the research, the authors used the main provisions of the queuing theory, the theory of automation, the theory of complex technical systems and general scientific methods of cognition, namely analysis and synthesis. The novelty of this technique is the synthesis of the structure of the military radio system and the parameters of the radio system in the context of electronic conflict. This technique is multi-criteria, in which the parameters are different in importance. The basis of this technique is the principle of nonlinear scheme of A. Voronin compromises. This technique allows to:
– to synthesize the structure of the radio communication system in the conditions of electronic conflict;
– to determine the optimal number of radio communication devices to ensure management tasks in the conditions of electronic conflict;
– to substantiate a set of mechanisms to increase the noise immunity of the noise protection subsystem in the conditions of electronic conflict.
The results of the research should be used at the stage of planning and operational management of the structure and parameters of military radio communication systems.
Investigating the fiscal motive of state incentives for innovative and investment activity
Authors: Yereshko Julia 
Published: July 2021

The object of research is the state as an economic agent of innovative development. The analysis of scientific achievements on the issue of the state innovation and investment activity stimulation and the study of the state from the standpoint of the innovative development subject forms a fairly clear idea about the mechanisms of activation of them both, at the same time, the motives for the state to stimulate innovation remain not fully covered.
The state itself is not interested in stimulating the innovation and investment processes and in transition to sustainable development. This interest is mediated, as for any other economic agent, by imbalance and/or obtaining additional economic effect in the form, for example, budget expenditures reduction; tax revenues growth, managerial staff optimization, etc. And, crucialness of purely liberal nature of any controlled influence on the system mediates that state regulatory activity should be based on the economic benefit of the agent, as opposed to the political motives of nominal adherence to the generally accepted course of development.
Well-known trajectories and patterns of administrative and economic activity of the state give grounds to assume the following main economic motives for stimulating the innovation process:
– increase in tax revenues (fiscal motive);
– reducing the burden on the budget;
– GDP growth;
– increasing the country's competitiveness;
– optimization of administrative costs and management staff;
– attracting program financing and investments.
Prominent among which is the increase in tax revenues or fiscal motive. It can result in several areas:
– from the standpoint of additional taxes due to the increase in effectiveness of legal entities innovative activity – the expansion of business activities; types and volumes of sales of products and services; increase in the number of enterprises; increase in the cost of sold products; profitability, etc.;
– from the standpoint of additional taxes due to better development of the workforce – higher employment; higher wages, etc.
Analysis of cutting forces during grinding of titanium alloy and corrosion-resistant steel by diamond, electrocorundum and cubic borine nitrid wheels
Authors: Lebedev Vladimir , Chumachenko Tatiana , Bespalova Alla , Nikolaeva Tatiana , Omelchenko Yevhen 
Published: July 2021

The object of research is the process of circular and surface grinding of titanium alloy and corrosion-resistant steel, namely, the cutting forces arising from mechanical processing. One of the most problematic areas in work is the selection of the required grinding modes, material and grinding wheel grain size.
In the course of the experiment, we used samples of VT8 titanium alloy and 12Х18N9T steel, on which the grinding process was studied with wheels made of various materials (electrocorundum, cubic boron nitride (CBN), diamond). The values of the cutting forces Py and Pz were obtained in the latitude of permissible modes, which are most often used in circular and flat grinding, and can reach maximum values, respectively, Py=27 N, Pz=15.5 N. The data were obtained at a low wheel speed from electrocorundum, about 15 m/s and grain size 8. By reducing the grain size of the wheel, we get the effect of increasing the energy consumption of the grinding process, due to the increase in the values of the cutting forces. If we compare the cutting forces arising from grinding with different wheels, then the following can be noted. Compared to electrocorundum wheels, when using CBN wheels, the cutting forces are reduced by 20–25 %, and when grinding with diamond wheels (despite the high wear of the diamond wheel), the effect of cutting forces is reduced by 25–30 %. This is due to the fact that cutting conditions are the most favorable for diamond and CBN grains, which makes it possible to use more intense cutting conditions.
The results of the study allow predicting the performance of the grinding wheel, reducing the energy consumption of production, and also adjusting the processing mode of the part to obtain the necessary quality indicators of the surface layer and the geometric dimensions of the part.
Feasibility justification of implementation of a device for sorting sheep products in the context of industry development
Authors: Tsybukh Andrii , Kravchenko Olha , Pomitun Ivan , Lysychenko Mykola 
Published: July 2021

The object of research is the methodology of a feasibility study for the introduction of a device for sorting sheep products. Sheep products mean sheep wool, the sorting accuracy of which affects the formation of the sale price of the final product (wool), including the size of the manufacturer’s profit, respectively, and the effectiveness and the level of economic efficiency of production. One of the most problematic areas is the subjective assessment of wool quality at the stage of pricing policy formation. This criterion is determined by a set of physical and technological indicators, which include the color of the coat, due to the degree of its melanin pigmentation or yellowing. Such an assessment, at present, is carried out with the participation of the operator, without the involvement of technical means capable of objectively registering and further providing data for the successful selection of sheep and the sale of wool.
In the course of the study, a systematic approach to the study of technical and economic processes and phenomena, an abstract logical method, monographic and empirical methods, a comparative analysis method, tabular and graphical methods, as well as a computational and constructive method for substantiating technical and economic indicators of the effectiveness of device implementation were used. The proposed analysis of the implementation of the device allows specialists at the level of enterprises producing sheep products to optimize the formation and implementation of the pricing policy. And it can also be used at the level of government bodies in determining the national policy for the development of sheep breeding and the formation of a strategy for its development. The obtained results of implementation allow:
– to increase the profit for each head of animals from the sale of better quality wool;
– to increase the level of profitability, which makes it possible to ensure the payback period for additional capital expenditures of less than two years;
– to confirm the economic feasibility of using this equipment, since the payback period for additional capital costs does not exceed two years, and the discounted payback period does not exceed the useful life.
A COMPREENSÃO DO ESPAÇO GEOGRÁFICO ATRAVÉS DA VIVÊNCIA EM UMA AULA DE CAMPO: RELATO DE EXPERIÊNCIA COM OS DISCENTES DA ESCOLA ESTADUAL FERREIRA ITAJUBÁ
Authors: Ferreira da Silva Mário Jorge 
Published: July 2021

O presente resumo traz como foco a importância da vivência do trabalho de campo como recurso didático dentro da concepção e entendimento do espaço geográfico. Nesse sentido, possibilita a interação entre os conhecimentos teóricos e práticos, inserindo o discente na realidade e permitindo construir uma teia de conhecimento promovendo o processo de ensino-aprendizagem de maneira eficaz e eficiente. Esse trabalho tem por objetivo mostrar a importância da vivência prática, na aula de campo, com os discentes pertencentes ao Programa Institucional de Bolsa de Iniciação à Docência (PIBID), da Escola Ferreira Itajubá, com relação à compreensão do espaço geográfico do município de Ceará-Mirim. A opção por esta pesquisa, diz respeito à importância do docente promover mecanismos didáticos, que possibilitem o discente conhecer, tocar, viver e sentir a realidade do conhecimento teórico aprendido dentro da sala de aula. Além disso, é necessário enaltecer o PIBID, como forma de promoção deste aspecto didático em que consegue juntamente com o espaço escolar e seus componentes promoverem a abertura deste espaço de vivência de grande importância para a formação e compreensão do discente. A pesquisa se desenvolve em torno do projeto “Conhecendo e vivendo o espaço geográfico”, que é desenvolvida pelos os bolsistas do PIBID na referida escola pública estadual. O projeto consiste em entender e conhecer o espaço geográfico de um determinado município do Rio Grande do Norte e a opção pela a cidade de Ceará – Mirim é de cunho informacional, pois os discentes desconheciam sua existência e importância para o desenvolvimento histórico e econômico do Rio Grande do Norte. O projeto “Conhecendo e Vivendo o espaço geográfico” foi desenvolvido na Escola Estadual Ferreira Itajubá, um espaço escolar de grande importância para o bairro de Neópolis, com relação a sua qualidade de ensino, bem como para abertura do espaço escolar para projetos como o PIBID. A pesquisa se desenvolve no âmbito da disciplina de geografia, tendo como público-alvo os discentes do 1° ano do ensino médio, sendo os conteúdos de espaço geográfico, cartografia e regionalização como principais arcabouços para o desenvolvimento teórico da turma.
ASPECTOS SOCIOAMBIENTAIS DOS RESÍDUOS SÓLIDOS URBANOS DA CIDADE DE SÃO TOMÉ RN
Authors: DOS ANJOS AUCEMARA MAURICIO 
Published: July 2021

RESUMOOs impactos causados pelo consumismo, a falta de sensibilização ambiental e de políticas públicas voltadas para este fim têm levado a reflexões e estudos sobre métodos e alternativas para minimizá-los, com o intuito de um dia eliminá-los. Mediante este contexto, este estudo tem como objetivo avaliar a percepção ambiental dos moradores da cidade de São Tomé/RN, tendo em vista que cidades pequenas também sofrem com o consumismo e com a destinação incorreta, seja por falta de orientação ou por falta de opção. Assim, esta pesquisa justifica-se por sua relevância para as políticas públicas, estratégias de gestão de resíduos sólidos a serem adotada, redução dos impactos socioambientais e econômicos do município, assim como para que outras pesquisas tenham informações que contribuam e enriqueçam o tema. Este estudo caracteriza-se como descritivo e exploratório, tendo como procedimento metodológico o estudo de caso. A coleta de dados foi feita inicialmente com embasamento teórico, com levantamento bibliográfico, e após pesquisa de campo com utilização de ferramentas de registro fotográficos e entrevistas com alguns moradores para avaliar a percepção deles em relação a coleta seletiva de São Tomé/RN. Como resultados, esta pesquisa identifica problemas relacionados à geração, destinação e ao armazenamento dos resíduos sólidos urbanos do município. PALAVRAS-CHAVE: São Tomé RN. Resíduos Sólidos Urbanos. Sustentabilidade.
Improving the Methodology of Placing Peripheral Devices for Monitoring the Technical Condition of Rolling Stock
Authors: Burchenkov V. V 
Published: July 2021

Purpose. Based on the research work of units and parts of rolling stock undercarriage in transient modes of emergency situations it is proposed to optimize the sequential placing of peripheral contactless devices for technical control of locomotives and cars on railway lines. Methodology. Investigation of transient processes of temperature increase of faulty axle bearings of locomotives and cars during remote technical diagnosing allows one to organize theory and hardware construction of the peripheral systems for testing the rolling stock on the move. Automatic control of the technical state of the rolling stock on the move – the last and in some cases the only possible process step, which allows revealing unacceptable defects in rolling units and thereby prevent emergencies in railway transport. Findings. Based on the research it was proposed a solution to the optimization problem of placing peripheral control devices of rolling stock when moving according to the criteria of the linear and exponential nature of heating defective axle boxes of wheelsets and other units of undercarriage. The risks of train stop on the railway line because of the erroneous classification of normally heated axle boxes as overheated, as well as the consequences of classification of overheated axle box as normally heated axle boxes were evaluated. Originality. Optimization model of placing peripheral control devices based on probabilistic criteria for evaluating the degree of permissible risk that, at a minimum, should not be exceeded during the transition to control technical means. A functional block diagram of test hardware diagnostics for the wheelsets when determining the gradations of digital indicators of defects was proposed. Practical value. The value of the results obtained lies in the improvement of a method of placing technical control peripheral devices and diagnosing rolling stock when determining the distance between the control stations in the same direction and organizing tracking modes for railcars with developing defects. From a technical point, reduced error probability is directly related to traffic safety and diagnostic algorithms.
Mathematical Model of Risks in Railway Transport During Diagnostics of Axle Boxes of Freight Cars
Authors: Muradian L. A , Pitsenko I. V , Shaposhnyk V. Y 
Published: July 2021

Purpose. The research is aimed at developing a mathematical model for determining the risks in railway transport during the diagnostics of axle boxes of freight cars, which will provide an assessment of traffic safety in the case of freight transportations. Methodology. To develop a mathematical model for determining the risks in railway transport, a continuous static model of the dependence of the level of individual approach of service personnel on the level of common interests (crew, shift) was used. Three types of dependencies were considered: optimistic, neutral, pessimistic. Findings. A mathematical model has been developed that allows assessing the risks and the level of train traffic safety during the diagnosis of axle boxes of freight cars, as well as determining further measures to reduce risks. In the process of assessing the level of individual approaches and general interests of a particular railway subdivision during maintenance and repair of the axle box of freight cars the variants for the limit possibilities of this subdivision were considered. At the same time extreme values for equilibrium distribution, for a case of dominance of maintenance and for a case of dominance of repairs of freight car’s axle box were established. Originality. For the first time, a mathematical model of risks in railway transport was developed, which is formed during the maintenance and repair of freight cars. It allows determining the level of traffic safety during freight transportations and outlining further measures to reduce risks. The method of studying the efficiency of the system of maintenance and repair of the axle box has been further developed, which, in contrast to the existing one, establishes the dependence of the number of maintenance of axle boxes on the number of their repairs in operation and will
increase traffic safety. Practical value. The application of the obtained mathematical models of risks in railway transport can reduce the risks during the diagnostics of axle boxes of freight cars in order to increase the local or general level of train traffic safety.
La question des inégalités en matière d’éducation et de santé vue par les institutions internationales: des mots aux mesures
Authors: Pilon Marc , Guillaume Agnès , Bulegon Pilecco Flavia 
Published: July 2021

L’éducation et la santé, les deux composantes des services sociaux de base, occupent une place importante dans l’agenda international du développement, notamment depuis l’adoption en 2000 des Objectifs du millénaire pour le développement (OMD), prolongée par celle des Objectifs du développement durable en 2015, au sein desquels la réduction des inégalités constitue une préoccupation majeure. S’est progressivement instituée une véritable gouvernance mondiale, dans laquelle la mesure (au sens de quantification) joue un rôle central à travers la mise en place et le suivi d’une multitude d’indicateurs, notamment en ce qui concerne cette question des inégalités. Les nombreux rapports et textes internationaux produisent des normes internationales qui tendent à s’imposer aux différents acteurs, à devenir « la référence ». À partir de ces documents et supports (rapports mondiaux de suivi de l’éducation pour tous, rapports sur l’État de la santé dans le monde, sites Internet…), l’article interroge à la fois le discours international sur les inégalités et la mesure de celles-ci. En matière d’inégalités, de quoi parle-t-on précisément ? Quels sont les termes employés ? Comment ont-ils évolué au cours du temps ? Enfin, que mesure-t-on réellement (et ne mesure-t-on pas) ?
Nouvelles technologies de développement et inégalités Nord-Sud
Authors: Al Dahdah Marine 
Published: July 2021

Les technologies de l’information et de la communication (TIC) jouent aujourd’hui un rôle de plus en plus central dans les programmes de développement. En 2015, l’organe des Nations Unies chargé des questions de développement et du commerce international, la CNUCED, a rendu public son rapport sur le « développement numérique » et demandé de positionner les TIC au cœur des nouveaux objectifs du développement (UNCTAD 2015). Le positionnement central des TIC dans les programmes internationaux de développement post-2015 est réaffirmé la même année, lors de la définition des « Principes pour le développement numérique » par un groupe d’acteurs issus d’organisations internationales et non gouvernementales. En 2016, le rapport annuel de la Banque mondiale sur le développement dans le monde s’intitule Les Dividendes du numérique et vient confirmer le rôle majeur assigné aux technologies numériques comme levier de développement (World Bank, 2016). Les programmes de santé par téléphone portable – appelés mSanté ou mHealth – sont une forme d’expérimentation de ce développement numérique. À partir de l’exemple d’un dispositif de suivi maternel par téléphone portable déployé au Ghana et en Inde, ce chapitre propose d’explorer un nouveau modèle qui lie le développement économique et social avec l’expansion du téléphone portable et de ses produits. Le recours aux technologies mobiles a introduit dans ces nouveaux programmes de développement des acteurs autrefois étrangers à ce champ et issus en majorité du secteur privé des TIC. Les alliances constituées pour ces programmes se caractérisent par une présence hégémonique d’acteurs privés du Nord, qui financent et déploient des outils techniques en s’appuyant, pour leur mise en œuvre au niveau communautaire, sur les fonctionnaires des services de santé du Sud. La question des rapports Nord-Sud dans les programmes de développement se voit réactualisée à travers ces coopérations technologiques particulières. Ces programmes globaux, encore peu étudiés, constituent une clé de reconfiguration des programmes de développement. En décryptant les inégalités Nord-Sud que ces nouvelles collaborations technologiques impliquent, ce chapitre identifie les logiques hégémoniques qui portent la mSanté.
Appréhender les inégalités dans le cas de sociétés fortement hiérarchisées
Authors: Leservoisier Olivier 
Published: July 2021

Ce chapitre propose une série de réflexions sur la manière d’appréhender les inégalités dans un contexte sociétal fortement hiérarchisé et marqué par un pluralisme normatif. Partant du constat que les inégalités ne sont intelligibles que replacées dans des rapports de pouvoir qui leur donnent sens, il s’interroge sur les processus de différenciation sociale et sur les usages sociaux que les acteurs font des situations inégalitaires dans des contextes historiques pluriels et imbriqués. Dans cette perspective, il s’agit non seulement de souligner l’importance de croiser les lectures de la stratification sociale, mais également de réfléchir aux ambivalences que les acteurs entretiennent avec les hiérarchies, à « l’écart entre l’injustice effective et l’injustice perçue », ainsi qu’aux rapports complexes entre mobilités et inégalités. A l’appui de ces réflexions, la présentation d’itinéraires de reconnaissance permet ici de mieux saisir les enjeux de dignité et les rapports ambigus entre normes et valeurs. Elle conduit, par ailleurs, à penser les rapports inégalitaires en termes de continuum, loin de toute vision linéaire et univoque des processus d’émancipation fondée sur le seul modèle d’égalité républicaine.
An analysis of the effects of site geology on the characteristics of near-field Rayleigh waves
Authors: Murphy J. R. , Shah H. K. 
Published: July 2021

AbstractAn approximate analytical model is presented for describing the effects of site geology on the near-field Rayleigh wave ground motions induced by atmospheric explosions. The model is based on an Airy phase approximation to the time domain displacement corresponding to the exact frequency domain solution. Results of numerical simulations are presented which indicate that the amplitude, duration, and dominant frequency of the Rayleigh wave ground motions are strongly dependent on the variation of shear wave velocity with depth at the site. The approximate model is tested over a range of site conditions, and it is demonstrated that the dependence of the Rayleigh wave characteristics on site geology predicted by the more complex, exact model can be accurately described by a remarkably simple set of analytic approximations.