bluuebunny/crossref_metadata_2025 huggingface dataset:
JUSTIFICATION OF THE SELECTION OF TOPOLOGICAL STRUCTURE OF PUBLIC FIBER OPTICAL COMMUNICATION NETWORK
Authors: ЯСИНСКИЙ С.А. , ЗЮЗИН А.Н.
Published: July 2021

Приводится обоснование выбора равнозначности относительных коэффициентов эффективности радиальных и кольцевых типовых структур и их сравнительный анализ для формирования структуры волоконно-оптической сети связи. Разработана математическая модель для обоснования выбора радиально-кольцевых типовых структур по среднегармоническим относительным коэффициентам эффективности радиальных и кольцевых структурных составляющих в ходе системного проектирования волоконно-оптической сети связи.

The article provides a rationale for choosing the equivalence of the relative efficiency coefficients of radial and ring typical topological structures and their comparative analysis for the formation of the structure of a fiber-optic communication network. A mathematical model is developed to justify the choice of radial-ring typical topological structures based on the average harmonic relative efficiency coefficients of radial and ring structural components in the course of a system design of a fiber-optic communication network.
RESULTS OF THE DRM SIMULCAST FIELD TRIALS IN 87.5-108 MHZ BAND
Authors: СОКОЛОВ С.А. , МЫШЬЯНОВ С.В. , КОВАЛГИН Ю.А.
Published: July 2021

Показано современное состояние цифрового радиовещания в России и в мире. Описаны результаты исследований, проведенных в опытной зоне аналого-цифрового DRM/ЧМ-радиовещания в полосе частот 87,5-108 МГц в Санкт-Петербурге в период с 18 июля 2019 г. по 25 декабря 2020 г. при мощностях аналоговой и цифровой частей передатчика, равных 3000 и 800 Вт соответственно. Приведены результаты оценки электромагнитной совместимости обоих форматов радиовещания. Сформулированы требования, предъявляемые отечественными радиовещателями к системе цифрового радиовещания в диапазоне 87,5-108 МГц, и показано, что аналого-цифровой формат DRM Simulcast соответствует им.

The current state of digital radio broadcasting both in Russia and in the world is presented. Digiton Systems LLC carried out a high-power field trial of the DRM system in DRM Simulcast mode by order of the Russian Television and Radio Broadcasting Network (RTRN) in the FM band 87.5-108 MHz in St. Petersburg (Russian Federation) from July 2019 to December 2020. The transmitter was set to radiate at 95.9 MHz FM signal with a transmit power of 3 kW and DRM signal with a transmit power of 800 W simultaneously. The article presents the results of these studies. The results of evaluating the electromagnetic compatibility of FM and DRM broadcasting formats are also described.
FROM CRYPTOGRAPHIC PRIMITIVE TO PROFESSIONAL COMPETENCE
Authors: МИТРОФАНОВ М.В. , ВАСЮКОВ Д.Ю. , АНИСИМОВ В.В. , КУЗНЕЦОВ С.И.
Published: July 2021

Рассматривается реализованный в учебной практике подход к методике обучения специалистов по защите информации в локально-вычислительных сетях, позволяющий в условиях ограниченного ресурса учебного времени, выделяемого в рамках курса повышения квалификации специалистов, сформировать необходимую профессиональную компетенцию.

The article considers the approach to the methodology of training specialists in information security in local area networks, implemented in educational practice, which allows, in the conditions of a limited educational time allocated within the framework of the advanced training course for specialists, to form the necessary professional competence.
FUTURE NETWORKS AND THEIR STANDARDIZATION
Authors: НЕТЕС В.А.
Published: July 2021

Рассматривается деятельность по разработке концепции будущих сетей (БС) МСЭ, а также Объединенного технического комитета № 1 по информационным технологиям, образованного ИСО и МЭК. Представлены разрабатываемые МСЭ новые направления: обеспечение доверия в инфокоммуникациях и информационно-ориентированные сети. Показана разница между подходами МСЭ и ИСО/МЭК к созданию БС; приведены причины, по которым можно говорить о большей реалистичности подхода МСЭ. Анализируется национальный российский стандарт, посвященный БС.

The activity of the ITU and the Joint Technical Committee 1 on information technology, formed by ISO and IEC, on the development of the concept of future networks is considered. The new areas developed by ITU have been characterized: trust provisioning in info-communication technologies and information-centric (data-aware) networking. Explanations are offered for the difference between the ITU and ISO/IEC approaches. The reasons why we can talk about the more realistic approach of the ITU are given. The Russian national standard of future networks is also analyzed.
SIMULATION MEASUREMENT OF CONDUCTIVE INTERFERENCE
Authors: САЖНЕВ А.М. , РОГУЛИНА Л.Г.
Published: July 2021

Разработана модель имитационных испытаний электронного устройства в современной программной среде на основе отечественных компонентов. Проведены имитационные испытания конвертора напряжения на 24 В с выходным током 1,4 А, частотой коммутации 20 кГц и выпрямительного устройства с выходным напряжением 48 В, током нагрузки 28 А. Получены частотные зависимости уровней кондуктивных помех и выполнена их оценка на соответствие нормам.

A model of simulation tests of an electronic device in a modern software environment based on domestic components has been developed. Simulation tests of a 24 V voltage converter with an output current of 1.4 A, a switching frequency of 20 kHz, and a rectifier device with an output voltage of 48 V, a load current of 28 A were carried out. The frequency dependences of conductive interference levels were obtained and their compliance with the standards was evaluated.
A COMPREHENSIVE AUTOMATED SOLUTION TO THE PROBLEM OF AIR ENVIRONMENT MONITORING
Authors: ОСАНОВ В.А. , КОНДРАТЬЕВ С.М. , КОНЯЕВА О.С.
Published: July 2021

Рассмотрена автоматизированная система мониторинга воздушной среды с использованием технологий беспилотных летательных аппаратов, оснащенных датчиками для выявления вредных веществ. Представлены алгоритм функционирования системы и программно-аппаратная часть решения. Показано, что канал связи на основе методов шифрования обеспечивает безопасную передачу данных с беспилотного аппарата на сервер. Результаты исследования найдут практическое применение в мониторинге уровня загрязнения воздуха в городах.

An automated system for monitoring the air environment using technologies of unmanned aerial vehicles equipped with sensors for detecting harmful substances is considered. The algorithm of the system functioning and the software and hardware part of the solution are presented. It is shown that a communication channel based on encryption methods ensures secure data transfer from an unmanned vehicle to a server. The results of the study will find practical application in monitoring the level of air pollution in cities and in predicting the direction of movement of polluting air masses.
SYSTEM OF INDEXES AND INDICATORS OF THE LIFE CYCLE STAGES OF THE DEVELOPMENT OF GENERATIONS OF MOBILE COMMUNICATION NETWORKS
Authors: ДЕВЯТКИН Е.Е. , ИВАНКОВИЧ М.В. , ШВЕЦ С.В. , СУХОДОЛЬСКАЯ Т.А.
Published: July 2021

Представлен подход к формированию порядка определения и применения показателей и индикаторов стадий жизненного цикла поколений сетей подвижной связи (СПС) в их эволюционном развитии. Подтверждена необходимость использования этих инструментов в решении прикладных вопросов регуляторного, нормативно-правового и других видов обеспечения для упреждающей разработки мероприятий, обуславливающих возможность внедрения СПС с учетом сложившихся национальных регуляторных процедур. Показана взаимообусловленная связь и приведено соотношение поколений СПС с поколениями социотехнических систем.

An approach to the formation of the procedure for determining and applying indexes and indicators of the stages of the life cycle of generations of cellular mobile communication networks in their evolutionary development is presented. It is shown that it is necessary to use these indexes and indicators in solving applied issues of regulatory and other types of support to enable the proactive development of measures that determine the possibility of implementing the mobile networks, taking into account the existing national regulatory procedures. A mutually dependent relationship is presented, and the ratio of generations of mobile communication networks with generations of socio-technical systems is given.
THE MAIN DIRECTIONS OF THE CONCEPT OF COMMUNICATIONS IN A LOW-ORBIT RELAY SATELLITES COMMUNICATION SYSTEM
Authors: ПАНТЕЛЕЙМОНОВ И.Н. , МОНАСТЫРЕНКО А.А. , БЕЛОЗЕРЦЕВ А.В. , БОЦВА В.В. , ЩЕРБАТЫХ Л.В. , ФИЛАТОВ В.В.
Published: July 2021

Рассмотрены проблемы организации связи в системе персональной подвижной спутниковой связи (СППСС) на низкоорбитальных спутниках-ретрансляторах для обеспечения широкополосного доступа к сетям передачи данных с применением небольшого персонального абонентского терминала (АТ). Дан краткий анализ существующих СППСС, определены требования к системе связи,представлены основные направления организации информационного обмена,предложенорешение создания АТ.

The paper is devoted to the problems of communication organization in the low-orbit personal mobile satellite communication system for providing broadband access to data transmission networks using a small personal subscriber terminal. A brief analysis of the existing systems of personal mobile satellite communications is given, the requirements for the communication system are defined, the main directions of information exchange organization are considered, and a solution for creating a subscriber terminal is proposed.
LOW ORBIT SATELLITE COMMUNICATION SYSTEMS STARLINK AND ONEWEB
Authors: МЫРОВА Л.О. , МЕНТУС О.В. , ДАВЫДОВ А.Б. , ЗАМЯТИН П.А. , ЛЯДОВА Е.Ф. , ФИЛАТОВА А.С.
Published: July 2021

Рассмотрены особенности построения спутниковых систем связи Starlink и OneWeb,использующих космические аппараты на низких круговых орбитах. Системы обладают высокой готовностью к предоставлению глобальных услуг связи и имеют весьма серьезный потенциал развития. В том числе следует отметить высокую вероятность применения систем Starlink и OneWeb в интересах военных и спецслужб недружественных России стран, что представляет собой очевидную угрозу национальной безопасности РФ.

The features of the construction of Starlink and OneWeb satellite communication systems using spacecraft in low circular orbits are considered. These systems are ready to provide global communication services and have very serious development potential. In particular, it should be noted that there is a high probability of using Starlink and OneWeb systems in the interests of the military and special services of countries unfriendly to Russia, which is an obvious threat to the national security of the Russian Federation.
Construindo o ser professor: (geo)grafias da trajetória de vida
Authors: Rodrigues Diniz Morais Ione
Published: July 2021

Construindo o Ser professor: (geo)grafias da trajetória de vida constitui uma narrativa acerca dos itinerários percorridos em busca dessa construção, reconhecidamente inacabada, que contempla as terras e grafias que marcam meu existir. Nessa narrativa em que fui tecelã de minha história, costurando os retalhos da vida para confeccionar o tecido que conferiu corpus a esta escrita, bordei pessoas, eventos e lugares que fazem parte do enredo e dos cenários dessa trajetória. MORAIS, Ione Rodrigues Diniz. Construindo o ser professor: (geo) grafias da trajetória de vida. Sobral-CE: SertãoCult, 2021.
In Search of Islamic Constitutionalism
Authors: Hosen Nadirsyah
Published: July 2021

This article examines the question of whether the Shari`ah is compatible with the principle and procedural form of western constitutionalism. The article will answer this question by looking at the arguments put forth by opponents of Islamic constitutional law and various counter-aguments. Using the substantive approach, I assert that the Shari`ah is compatible with constitutionalism. This position rejects both the fundamentalists’ and the secularists’ views on this subject. The Shari`ah’s principles can be a formal source or an inspiration to a constitution.
Muslims and the Media after 9/11
Authors: Yenigun Halil Ibrahim
Published: July 2021

This paper seeks to answer two questions: Has there been a shift in the representation of Muslims by the American media in the wake of increasing number of Muslims living here, and could Muslims speak for themselves through an autonomous Muslim discourse in the post-9/11 period? Using the tools of postcolonial analysis, I analyze the coverage on Muslims in the mainstream media following the 9/11 attacks. I find that there was a shift, in the form of a differentiation between moderates and fundamentalists. Additionally, the same tropes used to represent Muslims in the colonial discourse were now employed to the fundamentalist “Other.” Muslims could speak up; however, this could not avoid reproducing the dominant discourse. Yet, the presence of a significant Muslim minority offers opportunities for broadened boundaries of “American” citizenry that can be realized by growing activism to this end.
“American Jihad”
Authors: Bilici Mucahit
Published: July 2021

This paper looks at competing uses of the concept of jihad in American society in the aftermath of 9/11. It examines three alternative meanings given to “American Jihad.” Three of the instances all have “American Jihad” as their title: a book by Steven Emerson, a commencement speech by a Harvard student, and an episode of NBC TV series “Law & Order.” All three cases are acts of politics and moments of regulation of the entry of the concept of jihad into cultural circulation.
Seyyed Hossein Nasr and the Study of Religion in Contemporary Society
Authors: Jawad Haifaa
Published: July 2021

Seyyed Houssein Nasr is one of the main proponents of the traditional religious perspective, including the traditional Islamic point of view. His work is notable for many reasons, among them the following: its in-depth analysis of contemporary society’s spiritual poverty; its profound treatment of Islamic matters, 1 particularly in the context of the debate between Islamic modernism vs. Islamic traditionalism; its solid understanding of western philosophical thought and culture; its ability to present a compelling, critical appraisal of the modern predicament, boldly stating that which is perceived to be the truth, irrespective of whether or not it is fashionable or palatable as regards current opinion; and, lastly, its view of religion’s role in contemporary society. Having said that, however, given that Nasr’s work has a “metaphysical” nature, his writings, with few exceptions, are said to be demanding in terms of language, style, and expression, as well as of knowledge of other religions and philosophies, that they assume on the part of the ordinary reader.
Vagueness
Authors: Perley David
Published: July 2021

In the Sufi Ibn `Arabi’s mystical discourse, a performative “language of unsaying” is generated from the tensions and paradoxes that arise from the attempt to articulate the ineffable nature of a transcendent divine. However, such forms of language also occur in his attempts to articulate the elusive nature of the barzakh, an intermediate property of all existent things and beings. His use of language invokes not only issues of ineffability arising from a transcendent object, but also the dynamic relation between the ineffable and the intermediate. The analytical concept of “vagueness” helps to clarify such concepts as the barzakh by showing how these symbols are, relatively speaking, “precise” representations. Such a linguistic, philosophical knot is built into the mystical, pedagogical tradition of Ibn `Arabi’s Sufism, necessitating a distinction between how contemporary analytical philosophers and Sufi thinkers like him think about vagueness, while also emphasizing the sophisticated understanding of language at the heart of his Sufism.
Ispirativo e chiarificativo sono ammissibili? E ispiratorio e chiarificatorio?
Authors: Coletti Vittorio
Published: July 2021

Alcuni lettori ci chiedono se sono corretti e ammissibili ispirativo e ispiratorio, chiarificativo e chiarificatorio accanto ai previsti ispiratore e chiarificatore.
Si può scrivere a registro?
Authors: Bellina Massimo
Published: July 2021

Una lettrice di Legnano ci segnala che nelle circolari scolastiche si leggono frequentemente le espressioni scrivere a registro e scrivere a diario, della cui correttezza dubita.
First cytogenetic characterization of the Amazon Catfish Leiarius marmoratus (Gill, 1870) and its hybrid with Pseudoplatystoma reticulatum (Eigenmann & Eigenmann, 1889)
Authors: Dotti do Prado Fernanda , Abrigato de Freitas Mourão Andrea , Foresti Fausto , Senhorini José Augusto , Porto-Foresti Fabio
Published: July 2021

This study reports the first cytogenetic characterization of the Amazonian catfish Leiarius marmoratus (“jandiá”) and its F1 (first generation) hybrid “cachandiá” with Pseudoplatystoma reticulatum (“cachara”). A diploid number of 56 chromosomes and a single argyrophilic nucleolus organizer region (Ag-NOR) in the short arm of two sub-telocentric chromosomes were observed for both L. marmoratus and P. reticulatum, but with differences in the karyotype formula and the size of the chromosome pair with NORs. The hybrid showed 2n = 56 chromosomes with an intermediate karyotype when compared to the parental species. A single Ag-NOR was maintained in the hybrid but located in two chromosomes with marked differences in size and presenting intraindividual variation in NOR activity (nucleolar dominance). For L. marmoratus and the hybrid, heterochromatic bands were predominately distributed in the terminal, centromeric, and sub-centromeric regions of some chromosomes and 5S rDNA sites located in two distinct sub-telocentric chromosomes, similar to the previously described for P. reticulatum. The data suggested that the hybrid karyotype might be insufficient for a precise discrimination of hybrids, however, Ag-NOR can be used as a chromosome marker to differentiate “cachandiá” from L. marmoratus and P. reticulatum. The current study also provides insights into the chromosomal features of L. marmoratus and contributes with novel cytogenetic information of this native Amazonian catfish included in the Pimelodidae family.
Analysis of the Effect of Inflation on Exports of Non-Oil and Gas Commodities Through the Port of Tanjung Perak Surabaya
Authors: Purwoko Bambang
Published: July 2021

Export-import activities are based on the condition that no one country or region is truly independent because they need and complement each other. In order to increase the growth of the national economy, it is necessary to encourage non-oil exports. The aim of this study is to analyze the effect of inflation on non-oil and gas commodity exports in 2017-2019. The research conducted by the researcher is a quantitative correlation study by understanding the relationship between variables, in this case the effect of inflation on the export of non-oil and gas commodities through the Tanjung Perak Port of Surabaya in 2017-2019. The population of this study was taken from data from the Annual Report of Bank Indonesia and the Port of Surabaya Harbormaster for the 2017-2019 period. The sample data is from January 2017 to December 2019. This study used documentation in collecting the data. The documentation method is a method of finding data or information related to research variables through notes, literature, documentation, and others. The analysis data in this study is used descriptive statistical, classic assumption tests and simple linear regression tests. The results of the study conclude that inflation has a significant positive effect on exports of non-oil and gas commodities through the Port of Tanjung Perak Surabaya in 2017-2019.
Community Perception on Village Government Performance in Handling Covid-19 in Tarlawi Village
Authors: Muhsanan Muhsanan
Published: July 2021

This study aims to find out how the public perception of the performance of the village government in handling covid-19 in Tarlawi Village. The research used in this study is descriptive with quantative approach. The population in the study amounted to 342 which was clarified based on the number of heads of families (KK) with a sample of 185 people using random sampling. Data collection techniques are observation, interview, questionnaire and library study. Data analysis techniques used are validity test, reliability test and T-test one sample with the process using statistical product and service solution (SPSS) version 21 program. The results showed that the public perception of the performance of the Village government in handling covid-19 in Tarlawi Village is less than 75% meaning that it gives a bad response.
Corporate Criminal Liability Arrangements in the IUS Constituendum
Authors: Fajarudin Mohammad
Published: July 2021

The development of science and technology and globalization were already unstoppable today, not only have a beneficial impact, but also often have a negative impact for example by the "globalization of crime" and the development of quality (modus of operation) and the quantity of criminal acts. Offenses rife nowadays with regard to the corporate existence of the corporation is a criminal offense that could result in serious and widespread impact, damage the joints of the nation and threatens the stability of the State. Therefore, the law should take back its role in order to create justice and welfare and in handling needed ways remarkable that one of them is to make the corporation as a subject of criminal law that is considered to be committing a crime and can be criminally).
Application of the Learning Cycle Model with Video Media in Improving the Quality of Learning IPS For Students
Authors: Nurlaini Nurlaini
Published: July 2021

Improving the quality of social studies learning consists of improving teacher skills, student activities, and learning outcomes. Data on student learning outcomes showed as many as 21 students (70%) of the 30 students did not complete the KKM (64). This happens because the teacher has not been optimal in using learning models and media, causing student activity and learning outcomes to be low. Therefore, it is necessary to improve the quality of social studies learning through the application of the Learning Cycle model with video media. The purpose of this study was to improve the quality of social studies learning through the Learning Cycle model with video media for fifth grade students at SDN 32 Sungai Jaring. This study used classroom action research which was carried out in three cycles, each cycle consisting of one meeting with four stages, namely planning, implementation, observation, and reflection. The results of the reflection as planning for the next cycle. The subjects of this study were teachers and 30 fifth grade students at SDN 32 Sungai Jaring. Data collection techniques using test and non-test techniques were analyzed with descriptive and qualitative descriptive statistical techniques. The results showed that the teacher's skills in the first cycle obtained good criteria, the second cycle obtained very good requirements, and the third cycle obtained very good requirements. Student activities in cycle I got good criteria, cycle II got good criteria, and cycle III got very good criteria. Student learning outcomes in cycle I obtained sufficient criteria, cycle II obtained good criteria, and cycle III obtained excellent criteria. The conclusion of this research is the Learning Cycle model with video media can improve the quality of social studies learning for class V SDN 32 Sungai Jaring.
Digitalization of Marketing in Amadanom Dampit Coffee SMEs
Authors: Kriteria Rezhania Jelly
Published: July 2021

This study aims to determine and analyze how the application of digitalization of marketing in Small and Medium Enterprises Coffee Amadanom in Dampit District, Malang Regency. This research is a research with a qualitative descriptive approach. Researchers want to do research with a natural background or according to the existing context. The researcher wants to reveal the facts related to marketing management in an effort to digitize marketing in the Amadanom Coffee Small and Medium Enterprises, Dampit District. Sources of research data obtained through interviews and observations on six specified informants. The results showed that online marketing activities were carried out very well in UKM Tani Harapan. Offline and online marketing play a role in supporting business marketing. The application of online marketing has a significant impact on increasing income every year. With the implementation of digital marketing, the company's goals are easier to achieve and facilitate integration with other companies. It can be concluded that the application of digital marketing not only facilitates marketing activities carried out by business units but also improves the cooperative relationship between these business units and other business actors.
Improving the Quality Of Education Through The Application of Students Centered Learning: A Theoretical Review
Authors: Anggraeni Novita
Published: July 2021

This study aims to describe the application of student-centered learning to improve the quality of education. The results of this study show how the application of student-centered learning has an increase in improving the quality of education, namely: (1) one of factors that can improve the quality of education that must be done is "the children as the center" is excavated so that the school can install the power in the student; (2) the learning process is to built through a continuous question and answer process to improve students' thinking skills so as to obtain knowledge that is constructed by themselves; (3) educational institutions that manage effectively and efficiently will have a positive impact in achieving effective and efficient learning as well, which ultimately results in institutions and develops superior ones. The student-centered learning process can support the expected competencies.
APPLICATION OF PHOTOGRAMMETRIC METHODS FOR GEOTECHNICAL MONITORING OF EMERGENCY BUILDINGS AND STRUCTURES
Authors: Popov B. A. , Khakhulina N. B. , Netrebina Yu. S.
Published: July 2021

Statement of the problem. One of the relevant scientific and technical issues for improving the state-of-the-art and advanced monitoring methods is alarm construction (including in the minds of ordinary minds) with the emergence of uncompromising objects, and the future of unfinished control. It is quite common that conditions arise when it is not possible to perform a full-fledged monitoring of certain types of deformations of building structures by means of traditional methods. It is required to develop universal, superior and manual methods for the control of different geometric parameters of structures for taking timely measures to ensure the stability and stability of the structure and enabling the transition of the structure in the interconnection of the robotic mill as well. Results. All of the considered methods of statistics of the ways to control the output and have been revised based on the maintenance and repair of the conserved Voronezh nuclear power plant for heat supply.Conclusions. The methods of calculating deformations and the quality of the preparation of alarm constructions for metric photography allowance to carry out repeated monitoring of the technical mill with the necessary accuracy.
PROBLEMS OF ANALYSIS OF DESIGN AND RESEARCH METHODS OF INTERACTION WITH THE URBAN ENVIRONMENT
Authors: Kapustin P. V. , Gavrilov A. I.
Published: July 2021

Statement of the problem. The urban environment paradigm emerged in the 1960s as a protest against the modernist methods of urbanism and other types of design. It was no coincidence that the environmental movement was back then called "antiprofessional" as it was directed against the established and ineffective methods of working with the city, i.e., from research to management. Over the past decades, within the framework of the environmental movement and its ideological heirs, a lot of methods and have been developed. However, they have not yet been analyzed as an integral set of tools in the historical dynamics which is an alternative to traditional urban planning.Results. The features and problems of the analysis of the methodological “arsenal” of environmental movement and urban studies are considered. The methods of working with the urban environment are first structured according to the types of knowledge. The proximity of research and design approaches in the case when the urban environment is dealt with is shown. Conclusions. In the nearest future, we can expect new synthetic knowledge and particular methodologies related to both the exacerbation of environmental problems to emerge as well as the expansion of the circle of environmental actors and the process of professionalization of urbanstics.
SIMULAÇÃO DE DOIS CENÁRIOS DO PROCESSO DE FABRICAÇÃO DE UM PARAFUSO EM AÇO INOX AISI 316 UTILIZANDO O SOFTWARE ARENA®
Authors: Werneck Resende Ellen , Machado Rodrigues Loaisy , Dinalva Tavares Luany , Tavares Luiz César , Bittencourt Nazaré Tiago
Published: July 2021

A simulação é muito adequada no estudo de processos, pois trata-se de uma ferramenta capaz de fornecer projeções precisas de seu comportamento. Nesta perspectiva, o objetivo do presente trabalho foi realizar a simulação de dois cenários possíveis do processo de fabricação de uma peça, em uma empresa do setor metalúrgico, situada no município de Cataguases/MG, visando propor melhorias. O material escolhido foi um parafuso confeccionado em aço inox AISI 316, tendo um total de 17 unidades produzidas. Para desenvolver o trabalho, fez-se necessário realizar a cronometragem dos 6 processos de fabricação do parafuso. Posteriormente, aplicou-se conceitos básicos de estatística descritiva nos dados coletados, através do software Minitab® 19. Também, utilizou-se o software Arena® para realizar simulações computacionais dos processos. Além disso, realizou-se cálculos matemáticos para identificar o valor total da compra da matéria-prima, o valor de hora-máquina de cada processo, o valor total de hora-máquina do processo de fabricação completo, o tempo total para a finalização de cada processo e, por fim, o tempo total gasto para a produção do lote inteiro e, também, o tempo médio gasto para a fabricação de cada peça. Ao final da análise dos resultados, observou-se que implementando o modelo proposto pelos autores, a empresa atingiria um percentual de 47,63% de economia de tempo para a produção das peças, investindo apenas 1,8% a mais no custo do processo.
O O CRESCIMENTO DA GERAÇÃO DISTRIBUÍDA FOTOVOLTAICA NO BRASIL: UMA REVISÃO BIBLIOGRÁFICA
Authors: Campos Rodrigues André , Rodrigues Porto José Guilherme , Gonçalves Krepke Johnathan , Neves Serra Arthur
Published: July 2021

O desenvolvimento da geração de energia através de sistemas locais vem em constante evolução ao longo dos anos, superando as expectativas e projeções de instituições relacionadas ao setor de energia elétrica. Esta evolução pode ser relacionada aos grandes benefícios nos quais o consumidor que se torna também gerador, passa a ter ao utilizar este sistema de geração. Além disto, a transição energética que o país precisará passar em um futuro próximo, ocasionada pela matriz energética brasileira ser, em sua maior parte, destinada a fontes de geração que possuem problemas sérios relacionados ao meio ambiente, proporciona grandes incentivos a este segmento, pois novas tecnologias são aplicadas ao segmento de geração utilizando fontes sustentáveis e um novo mercado é expandido ao longo dos anos. Através da revisão bibliográfica obtida com pesquisas em artigos, estudos e publicações de grandes portais e agências do setor de energia elétrica do Brasil, o presente estudo pôde avaliar e compreender o constante e exponencial crescimento da geração distribuída fotovoltaica no Brasil, avaliando as promissoras projeções do futuro deste setor de geração de energia elétrica.
ENERGIA SOLAR FOTOVOLTAICA: REVISÃO BIBLIOGRAFICA
Authors: Segundo da Silva Matheus , Rocha Lana Thiago , Silva Júnior José Antonio , G. Talarico Matheus
Published: July 2021

A demanda pela diversificação da matriz energética brasileira tem se tornado cada vez mais importante, sendo estimulado por dois principais fatores. Primeiro pelo atual panorama energético, pois a diminuição das chuvas vem acontecendo frequentemente e a consequência faz com que aconteça a redução de energia geradas pelas hidrelétricas. E ainda, pela necessidade de explorar recursos renováveis que trazem flexibilidade e sustentabilidade quando da sua utilização. Diante deste cenário, a energia solar fotovoltaica apresenta-se como uma tecnologia em constante avanço, no Brasil e no mundo. O trabalho busca apresentar o princípio de utilização da energia, demostrando sua metodologia e seus impactos no cenário mundial. Com base em pesquisas realizadas, artigos e revistas, tem-se uma visão da utilização da luz solar para a produção de energia elétrica através de painéis fotovoltaicos, sendo aplicada em casas, iluminações públicas, fábricas e etc.
Uma Abordagem de Layout para a Gestão de Estoque em uma Mineradora
Authors: Martins Vale Menezes Vitor , Almeida Costa Murilo , Sousa Lopes Gilberto , César Fialho de Oliveira Mario , De Oliveira Silvano Zarur
Published: July 2021

O presente trabalho tem por objetivo mostrar a importância do estudo de tempo e movimento visando à otimização do processo coleta de minério no pátio e eficiência da simulação computacional utilizando o software Arena, a fim de propor uma alteração do layout existente. Para isto, foi desempenhado um estudo de caso na área de expedição de uma mineradora. A metodologia utilizada baseia-se em estudo sobre layout e simulação computacional. Com a utilização desta, foi proposta uma alteração no layout estudado baseado em dados obtidos através do software. Os resultados mostraram que o novo layout proposto é mais viável, devido principalmente a redução do tempo de deslocamento realizado pelo caminhão, visto que o layout proposto troca a posição de uma pilha com maior demanda em um local desprivilegiado por uma pilha de menor demanda em uma posição que apresenta um menor tempo para o processo de coleta.
ESTUDO SOBRE UM PLANO DE AÇÃO PARA SEGURANÇA
Authors: Gomes de Araujo Fabiana , Neves Gomes Amanda , Oliveira Silvano Zarur , Barbosa Douglas , Sousa Lopes Gilberto
Published: July 2021

No Brasil, ainda, o índice de acidentes de trabalho é alto, sendo necessário, analisar esseproblema e propor estratégias para contorná-lo, garantindo que a empresa empregue padrõesde segurança e, assim, economize com custos em acidentes laborais. O presente trabalho temcomo intuito identificar em qual setor de uma indústria química possui a maior taxa deacidentes de trabalho. Posteriormente, propor um plano de ação baseado na ISO 45001, quevisa minimizar e/ou mitigar os acidentes, consequentemente, reduzindo os custos daorganização com estes. Em vista disso, os dados acerca dos acidente de trabalho de empresa,do período de 2014 a 2019, foram levantados e verificou-se que o setor Pastilhas apresentavaa maior taxa de ocorrência de acidentes. Os dados colhidos, foram tratos no software MiniTabe correlacionada através da Correlação de Pearson, obteve-se a relação entre os números deacidentes e os custos. Diante ao exposto, pode-se caracterizar o plano de ação seguindo asdiretrizes de norma ISO 45001.A norma é segmenta em dez, subitens, e o foco da pesquisaficou em Planejamento. Além disso, levou-se em conta as norma regulamentadora número 9(NR-9) e número 6(NR-6). O plano de ação foi traçado e exposto em forma de planilha,composto por: objetivos, ação, indicador e meta. E em cada um deste item é descrito o quefazer, como fazer, qual ferramenta e indicador utilizar e qual a meta ser atingida. Ao melhoraro ambiente de trabalho e criar uma rede de conscientização com todo os funcionários,pretende-se diminuir o índice dos acidentes de trabalho. O plano de ação estipulado se mostrasatisfatório e viável, de forma que se implementado, os custos com acidentes trabalhistasdevem cair, assim, os objetivos aqui estipulados deverão ser alcançados.
SIMULAÇÃO DO PROCESSO DE FABRICAÇÃO DE MÁSCARAS DE TECIDO EM UMA CONFECÇÃO UTILIZANDO O SOFTWARE ARENA
Authors: Durães Fialho Andrade Vitória , Souza Queren Hapuque , Gonçalves Larissa Máximo , Vieira Lucas da Silva , Nazare Tiago Binttencourt
Published: July 2021

O presente artigo tem por objetivo descobrir através de técnicas de simulação computacional a capacidade de produção de uma confecção de vestuário no processo de fabricação de máscaras de tecido, seus gargalos e filas e o grau de ocupação dos recursos disponíveis. A partir da coleta de dados, feita pelo processo de cronoanálise, por meio de visitas a empresa, a modelagem computacional foi desenvolvida através do software Arena versão Student 12, onde foi possível identificar a capacidade produtiva, em quais setores ocorrem os possíveis atrasos na produção (gargalos e filas) e o grau de ocupação. Para a elaboração do processo estatístico dos dados foi utilizado o software Minitab
SISTEMA DE ILUMINAÇÃO A LED ALIMENTADO POR PAINÉIS FOTOVOLTAICOS EM ÁREAS VULNERÁVEIS.
Authors: Almeida Lavinia , Trindade Lucas , Bittencourt Tiago
Published: July 2021

Este estudo analisa os benefícios que podem ser obtidos através de uma iluminação em diversos lugares e sendo assim, conseguindo verificar redução na atividade criminosa. Entre os benefícios verificados, temos a melhoria na saúde e ao acesso informação. A criminalidade, trata-se de um dos temas primordiais dos brasileiros e, embora existam esforços para reduzi-lo, eles continuam altos. Com isso, a deia central consiste em que a ampliação do acesso de iluminação pode oferecer uma forma de redução na criminalidade e pode ser vinculada a outras formas já existentes de combater o crime.

A utilização eficiente da energia elétrica é um tema que vem crescendo muito. No Brasil isso se deve principalmente à falta de chuvas que impacta diretamente as usinas hidrelétricas que são a maior fonte de eletricidade no país. Este trabalho estuda maneiras de reduzir o consumo de energia elétrica dos sistemas de iluminação através da utilização de equipamentos mais modernos e eficientes. Nos últimos anos os diodos emissores de luz (LED’s) vem revolucionando o setor de iluminação possibilitando a redução do consumo de energia com ótimos níveis de iluminação.
Preliminary checklist proposal for enhancing BIM-based construction project contracts
Authors: Erpay Mehmet Yavuzhan , Sertyesilisik Begum
Published: July 2021

In multi-participant BIM-based construction projects (BbCP), the organization of inter-stakeholder relationships has become challenging. The emerging BIM roles and responsibilities that are not clearly defined as a standard, complicate this process further. Legal regulations and contracts prepared according to traditional construction methods are insufficient to identify these new and complex relationships. This uncertainty hinders the spread of BIM-integrated projects, causing stakeholders to have legal concerns about BIM-based projects. Within the scope of this research, the legal concerns related with BIM-based projects and critical points to be considered in the contract preparation phase were determined through literature review, case law research, first and second stage interviews and a questionnaire survey. 25 main and 32 sub-critical points were identified and recommended to be considered in the contract phase were categorized under 9 headings (i.e., administrative decisions, analysis, legal issues, allocation of risks and responsibilities, intellectual property rights (IPR), information management, interoperability, data security and the operation phase). As an outcome, this paper proposes a preliminary checklist template that can be used as an input to the contract phase of BbCP. With the support of checklist, measures can be taken at the contract stage for potential legal problems that may occur in the project life-cycle. The checklist can serve as a starting point for legislators and regulators to ensure the compatibility of traditional construction contracts with new technologies. Finally, addressing legal issues in BbCP can alleviate stakeholders’ concerns and lead to the spread of BbCP in the construction industry.
Post-COVID syndrome: A reflection and opinion paper
Authors: Bouza Emilio , Cantón Moreno Rafael , De Lucas Ramos Pilar , García-Botella Alejandra , García-Lledó Alberto , Gómez-Pavón Javier , González del Castillo Juan , Hernández-Sampelayo Teresa , Martín-Delgado Mari Cruz , Martín Sánchez Francisco Javier , Martínez-Sellés Manuel , Molero García José María , Moreno Guillén Santiago , Rodríguez-Artalejo Francisco Javier , Ruiz-Galiana Julián , De Pablo Brühlmann Silvia , Porta Etessam Jesús , Santos Sebastián Mar ,   Servicio de Microbiología Clínica y Enfermedades Infecciosas del Hospital General Universitario Gregorio Marañón, Universidad Complutense. Madrid, Spain
Published: July 2021

A high proportion of people who have suffered from COVID-19 report, after recovery from the acute phase of the disease, clinical manifestations, both subjective and objective, that continue beyond 3 weeks or even 3 months after the original clinical disease. There is still no agreed nomenclature to refer to this condition, but perhaps the most commonly used is post-COVID syndrome. The Scientific Committee on COVID of the Madrid College of Physicians (ICOMEM) has discussed this problem with a multidisciplinary approach in which internists, infectious disease specialists, psychiatrists, pneumologists, surgeons, geriatricians, pediatricians, microbiologists, family physicians and other specialists have participated, trying to gather the existing information and discussing it in the group. The clinical manifestations are very variable and range from simple fatigue to persistent fibrosing lung lesions with objective alterations of pulmonary function. Post-COVID syndrome seems to be particularly frequent and severe in adults who have required admission to Intensive Care Units and has a peculiar behavior in a very small group of children. The post-COVID syndrome, which undoubtedly exists, is at first sight not clearly distinguishable from clinical manifestations that which occur after other acute viral diseases and after prolonged stays in ICUs due to other diseases. Therefore, it offers excellent research opportunities to clarify its pathogenesis and possibly that of other related entities. It is possible that progressively there will be an increased demand for care among the millions of people who have suffered and overcome acute COVID for which the health authorities should design mechanisms for the agile management of care that will possibly require well-coordinated multidisciplinary groups. This paper, structured in questions on different aspects of the post-COVID syndrome, attempts to stage the current state of this problem
Silvicultural Production as a Basis for Continuity of Forest Management
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Mochalov Boris , Bobushkina Svetlana ,   Northern Research Institute of Forestry
Published: July 2021

Currently, the principle of sustainable use of forests is a fundamental direction in the management of natural resources. Solving the problems of sustainable development of forestry in the European North involves ensuring the quality reproduction of forest resources. The main parts of silvicultural production are procurement and preparation of seeds; growing planting stock, creation of new stands and agricultural tending of them. The goal of the federal project “Forest Conservation” is to ensure the balance of forest felling and reproduction in the ratio of 100 % by 2024. The emphasis is on the use of ball-rooted planting stock for artificial reforestation. Information gap on the long-term prospects of its use, as well as the lack of data on the results of long-term observations of growth and condition of forest crops created by seedlings with a lump of substrate, and comparison of such seedlings with traditional planting stock, especially in northern conditions, update the topic of research. The research purpose is to identify conditions for obtaining high-quality planting stock, as well as to assess the possibility of successful restoration of pine on felling sites in the north of the European part of Russia by creating forest crops using regional intensive technologies, based on the results of long-term technologies. The main objects of observations are nurseries of the region, the procedures used in them and the experimental planting of pine trees in the Kargopol and Arkhangelsk forestries in 2000–2001. Preservation, diameter, height, and volume were determined in dynamics in the areas of crops created from various types of planting stock (seedlings, plantlet, ball-rooted planting stock). The counts were carried out with several repetitions and dividing plants into healthy, weak and dry. Wood flaws of pine trunks were also noted and natural regeneration was recorded. Based on the research materials, the possibility of successful restoration of pine trees on felling sites in the north of the European part of Russia is shown using regional intensive technologies for the production of various planting stock and the creation of forest crops. This will reduce the period of transfer of young trees to natural conditions and increase the productivity of plantations. Comparison of average diameters and heights for all accounting periods indicates the influence of the type of planting stock and density of planting on the growth and development of trees. During the observation period, plantlets lead in all respects. Their height and diameter is 20–44 % higher than that of yearling seedlings, and in terms of stem volume the difference with other types of planting stock reaches 1.9–2.9 times.
Spatiotemporal Gait Parameters and Walking Characteristics in Community-Dwelling Ambulatory Stroke Survivors
Authors: Jibrin Sammani Usman  , Caleb Ademola Omuwa Gbiri  , Olajide Ayinla Olawale
Published: July 2021

Background: Gait dysfunction is a major sequalae of stroke which negatively affect stroke survivors’walking and community re-integration. Understanding the impairments that determine their communityfunctioning willassist in development of effective treatment strategies for them to overcome theirdisability.Aim: The aim of the study was to explore thespatiotemporal gait parameters and walking characteristicsin community-dwelling ambulatory stroke survivors and determined howthey differ across time ofcommencement of ambulation and duration of ambulation post-stroke.Method: This study involved 164 (83males) community-dwelling ambulatory stroke survivors inKano, Nigeria. The spatiotemporal gait parameters wereassessed along 12-meter distance walkingpath. Spatiotemporal symmetry was computed from the spatiotemporal parameters. Lower limb motorimpairment, lower extremity function, and functional ambulation were assessed using Fugyl-Meyerassessment scale, Lower Extremity Functional scale, and Modified Emory functional ambulatoryprofile respectively. Their physical mobility was assessed using Modified Rivermead mobility index,walking confidence using ambulatory self-confidence questionnaire while Berg balance scale was usedto measure balance. Functional mobility and walking endurance was assessed using the Time up andgo test and 6-minute walk test respectively.Walking status was assessed with functional ambulatorycategory.Results: The participants were aged30years and abovewith 61% above 50years. Most (59.8%)participants commenced ambulation within 1-month of stroke with 65.9% being independent infunctional ambulation. Their spatiotemporal, mobility and balance parameters as well as spatiotemporalsymmetry characteristics were severely affected and are significantly inversely related to their times ofcommencement of ambulation post-stroke.Conclusion: Spatiotemporal gait parameters, mobility parametersand balance performances areseverely abnormal in community-dwelling stroke survivors and negatively impact on their walkingability and community functioning.