bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise estatística para avaliação do comportamento de parâmetros hidráulicos aplicada a rede real de topografia montanhosa
Authors: da Silva Vieira Luane Tais , das Graças Braga da Silva Fernando , da Silva André Carlos , Silva Luiz Felipe
Published: June 2021

O monitoramento de parâmetros hidráulicos em campo normalmente tem custo elevado. Em redes de distribuição de água, a compreensão é extremamente importante para a tomada de decisões que visem ao acesso a melhor eficiência hídrica e energética, principalmente relacionadas a operação e controle de perdas de água. O objetivo do trabalho foi utilizar ferramentas estatísticas para análise de setor real de distribuição de água do Sul de Minas Gerais. A metodologia fundamentou-se em análises estatísticas que possibilitam interpretar informações para subsidiar a tomada de decisões futuras, entre elas o Teste t de Student. A partir de análises de adaptação de um simples modelo matemático, foram avaliadas as perdas por nós a partir dos dados tratados. Concluiu-se que pode-se extrair muita informação de uma rede real pelas análises; aqui especificamente são contempladas particularidades de região montanhosa. Palavras-chave: Parâmetros hidráulicos. Sistema de distribuição de água e análise estatística.
Tratamento de água de lavagem de filtro de ETA empregando coagulante recuperado e desinfecção por radiação UV
Authors: Filipaki Andressa , Beber de Souza Jeanette , Magno de Sousa Vidal Carlos
Published: June 2021

A produção de água potável nas estações de tratamento de água (ETA) gera resíduos que se constituem fontes de poluição ambiental, requerendo a implantação de sistemas de tratamento que visem ao seu melhor aproveitamento. O objetivo deste trabalho foi avaliar a tratabilidade da água de lavagem dos filtros (ALF) de uma ETA do tipo ciclo completo, por meio da aplicação de coagulante recuperado do lodo da própria estação e subsequente desinfecção empregando-se radiação ultravioleta (UV). Foi obtida concentração de
793,7 mg Al L-1 a partir do coagulante recuperado, que aplicado na etapa de clarificação da ALF permitiu a redução da turbidez em 98% (30 mg Al L-1). A eficiência da desinfecção foi avaliada por meio da inativação das bactérias indicadoras: Escherichia coli, Clostridium perfringens e coliformes totais em doses que variaram de 49,6 a 297,3 mWs cm-2, atingindo remoções de 1,3 log para Escherichia coli, 2,6 log para Clostridium
perfringens e 2,0 log para coliformes totais.
Palavras-chave: Desinfecção UV. Água de lavagem de filtro. Recuperação de coagulante.
Panorama da digestão anaeróbia de resíduos orgânicos com alto teor de sólidos: tendências e potencialidades
Authors: Ramos Sampaio Solaine , Rebuli de Oliveira Caio , Franci Gonçalves Ricardo
Published: June 2021

É crescente a quantidade de estudos que afirmam que a digestão anaeróbia (DA) representa não só uma saída para a grande geração de resíduo orgânico no mundo, mas uma alternativa às tradicionais fontes de energia. A referida tecnologia promove a recuperação de biomassas diversas por meio da geração de produtos potencialmente rentáveis e ambientalmente corretos, como o biofertilizante e o metano. Por se tratar de um processo biológico, a DA depende de uma série de variáveis que assumem configurações diversas, tais como: teor de sólidos totais, monodigestão e codigestão, faixas de temperatura mesofílica e termofílica, número de estágios, dentre outros. Nesse sentido, o presente artigo teve como objetivo o levantamento sistematizado de um portfólio bibliográfico com alto fator de impacto para identificar a abrangência da referida tecnologia, bem como verificar as tendências e potencialidades das configurações existentes.
Palavras-chave: Digestão anaeróbia. Resíduos orgânicos. Teor de sólidos totais. Bioenergia. Biometano. Biogás. Biofertilizante.
Análise hidrológica para barragens na Ilha de Santiago, em Cabo Verde, África Ocidental
Authors: Osny E. Silva Francisco , M. Fernandes Manuel
Published: June 2021

A construção de barragens em Cabo Verde é um fato recente, sendo a primeira barragem construída em 2006, ainda na ausência de uma legislação sobre segurança de barragens. A falta de experiência no projeto de barragens pela engenharia nacional obrigou o governo a contratar empresas de consultoria internacionais para sua elaboração. A contratação em lotes ensejou que os projetos fossem elaborados de forma similar em metodologia de cálculo, de parâmetros de projeto e desenho. Nos projetos analisados, chamou atenção ao fato de se adotar a média dentre cinco fórmulas empíricas de cálculo do tempo de concentração (tc) em vez de se adotar o menor dos tempos para o dimensionamento hidrológico, que foi sempre dado pela fórmula de Kirpich, uma das mais empregadas na elaboração de tais estudos. Este trabalho investigou o risco hidrológico decorrente do uso do tempo de concentração médio avaliando a folga resultante no vertedouro para uma cheia milenar, concluindo pela insegurança dos projetos.
Palavras-chave: Barragem. Barragens na Ilha de Santiago. Análise hidrológica.
A REVIEW PAPER ON QUANTITATIVE ASSESSMENT OF SOLAR PV SYSTEM IN JAIPUR
Authors: Mr. Kishan Khatri  , Dr. Shweta Choudhary
Published: June 2021

The aim of research is to identify a performance gap of solar PV through the quantitative assessment. In the recent studies it has been observed that the actual performance is considered based on the overall irradiation on the major portion of the area, as the irradiation for low distance grade is challenging to collect across the globe. The study and analysis of the actual solar PV system is the open ground to study and benchmark the generation for particular Jaipur City. On the basis of cost analysis, it has been observed, the rooftop solar plant is a feasible solution as it provides a helping hand to meet the growing energy demand. Although, some challenges such as inflation rate, the current discount rate and life of the plant will remain with installation and generating but, can be mitigated with its long-term benefits. The current market scenario with low cost of renewable technology the role of other financial parameters affects the financial viability of the project therefore it is necessary to analyse all the parameters carefully before installing a PV plant especially in areas where land cost is a considerable parameter.
KEYWORDS: Solar PV Generation, Jaipur Radiation, Photovoltaic, Kilowatt peak, Rajasthan Solar
Effect of Different Animal Organic Manures on the Biometric and Nutrient Parameters of
Coriandrum sativumL
Authors: Maria Puspham Grace.M  , Rajithra.R  , V.Ilakkiya  , Dr. B. Dhanalakshmi
Published: June 2021

In recent years, use of livestock manure and marine bio-waste has been advocated in integrated nutrient management (INM) system in vegetable crops. Poultry manure is an excellent organic fertilizer, is concentrated source of nitrogen and other essential nutrients. In the present study the culinary herb Coriandrum sativum which has medicinal property was selected as experimental plant whose biometric parameters were analyzed in different treatment pots amended with different organic poultry and fish manure. The productivity of Coriander is influenced by several factors such as soil, varieties, fertilizer management, and also various agro techniques used for growing crop. With this context in the present experimental study two animal wastes converted to organic manure by Eudrilus eugeniae-Worm into poultry and fish manure in organic farm of Rajapalayam District was purchased and amended in 2kg garden soil in selected ratios namely 25% (T2), 50%(T3),75%(T4) and 100%(T5). (T1) was maintained as control in which no amendment was made. Corainder seed were purchased from TNAU, Coimbatore. The experimental findings pertaining to the present investigation reveals the effect of poultry manure has been higher than fish manure on the growth parameters and NPK of coriander (Coriandrum sativum L.). So the ultimate goal is to develop farming systems that are productive, energy conserving, environmentally sound conserving of natural resources such as soil and water and thus ensure food safety and quality.
KEYWORDS: Manure, Coriander, Poultry and Eudrilus euginae
The study the formation of silver nanoparticles by bacteria of the genus Bacillus
Authors:   Bakı Dövlət Universiteti biologiya üzrə fəlsəfə doktoru, dosent, Adilkom qızı Həsənova Sevda , Çərkəz qızı Süleymanova Gülşən ,   Bakı Dövlət Universiteti biologiya üzrə fəlsəfə doktoru, dosent, Məhi qızı Quliyeva Sevinc ,   Bakı Dövlət Universiteti biologiya üzrə fəlsəfə doktoru, müəllim, Misir qız Rəhimova Mehnurə ,   Bakı Dövlət Universiteti biologiya üzrə fəlsəfə doktoru, müəllim, Siyabənd qızı Cəfərzadə Aygün ,   Bakı Dövlət Universiteti magistrant
Published: June 2021

Nanotechnology studies materials with a size of 1-100 nm. Various microorganisms (bacteria, fungi. actinomycetes and others) are involved in the synthesis of nanoparticles in a biological way. Nanoscale materials are important as new antimicrobials due to their unusual physical and chemical properties - the activity of intracellular and extracellular enzymes plays a key role in the synthesis of nanoparticles by microorganisms. Was studied the ability of Bacillus sp strains to formation of silver nanoparticles. During the study, silver nitrate solution was added to biomass and culture medium of Bacillus sp.l, sp.2, sp.3. It was found that the culture medium of the Bacillus sp. l strain capableof producing silver nanoparticles, but the biomass does not have the property of forming silver nanoparticles. Its ability to form silver nanoparticles was detected by staining reaction medium in a dark color. However, the ivestigation the ability to formation silver nanoparticles by strains Bacillus sp2 and Bacillus sp3 showed that they cannot biosynthesis the silver nanoparticles. Was investigated the morpho-cultural features of the bacterial strain Bacillus sp.l. Was shown that Bacillus sp.l strain belonged to Bacillus cereus specie. Key words: bacteria, silver nanoparticles, Bacillus sp, culture fluid, biomass
The quality of the cotton crop is determined by the physical, mechanical and technological properties of the fiber
Authors:   Bitki Mühafizə və Texniki bitkilər Elmi-Tədqiqat İnstitutu aqrar elmlər doktoru, Əlirza oğlu Tağıyev Ələddin , Kazım qızı Ələsgərova Sevil ,   Bitki Mühafizə və Texniki bitkilər Elmi-Tədqiqat İnstitutu böyük elmi işçi, Mədət qızı Mustafayeva Qənirə ,   Bitki Mühafizə və Texniki bitkilər Elmi-Tədqiqat İnstitutu böyük elmi işçi, Əşrəf qızı Qasımova Kəmalə ,   Bitki Mühafizə və Texniki bitkilər Elmi-Tədqiqat İnstitutu böyük elmi işçi
Published: June 2021

In the course of the study, the biological characteristics of cotton, agrotechnical measures, soil and climatic conditions and technological factors that create conditions for the of a “fibrous coat”, “seed coat” and “seed crumbs” in the fiber were studied. The morphological characteristics of the varieties, the weight of the seed may differ depending on the soil-climatic and agrotechnical conditions, as well as the cultivation conditions. Key words: cotton, raw cotton, seed, technological features, variety, physical-mechanical features
ANALISIS PROFIL USAHA DAN PENDAPATAN PENGOLAH VIRGIN COCONUT OIL (VCO) DI DESA HORONGKULI
Authors: Rusli Aan Pratama , Mustika Andi Mega , Ilmiah Nur , Kudiangga Bergas , Hasbiadi Hasbiadi , Asni Asni
Published: June 2021

Desa Horongkuli merupakan daerah yang sangat potensial untuk pengembangan usaha minyak kelapa murni atau virgin coconut oil(VCO). Sebagian besar terdiri dari daerah pesisir yang ditumbuhi pohon kelapa, yang dapat mendukung pengembangan bisnis VCO karena bahan baku yang dibutuhkan dapat dengan mudah dipenuhi. Penelitian ini bertujuan untuk mengetahui profil usaha Pengolah VCO dan untuk mengetahui pendapatan Pengolah VCO di Desa Horongkuli.Metode penelitian yang digunakan yaitu metode survei dengan teknik purposive sampling.Objek dalam penelitian yaitu pengolah VCOdengan skala home industry di desa Horongkuli.Analisis data yang digunakan adalah analisis deskriptifdan analisis pendapatan.Profil usaha pengolah VCO di Desa Horongkuli menggunakan bahan baku kelapa lokal dan peralatan yang sederhana dalam mengolah VCO, serta jumlah pendapatan yang diterima pengolah VCO yaitu sebesar Rp 833.250perbulan dengan nilai r/c ratio 1,295 artinya layak diusahakan.
The Institutional Superstructure As a Dominant Factor in the Understanding of Issues in Urban and Regional Planning in Norway After 1966
Authors: Rasmussen Tor Fr.
Published: June 2021

The aim of this article is to analyze the motives of some of the decisions made in the Norwegian urban and regional planning and to illustrate them on several issues and cases from recent years. It argues for a more social behavioural approach in study, including more attention being paid to the perceptions of both the researchers and the politicians involved in planning and planning decisions, as well as to the socio-economic context of their decisions.
Provisional Stenting for Left Main Bifurcation Disease under IVUS guidance: A Case Series
Authors: Mody Rohit
Published: June 2021

Around 15-20% of coronary lesions include bifurcation, and among which left main (LM) bifurcation lesions are critical and complex to manage. Though the two-stent strategy is the preferred option for complex LM bifurcation lesions, the provisional strategy should be considered if the side branch is disease-free to avoid peri- and post-procedural complications. Thus, precise anatomical and physiological assessment of LM lesion should be made using intravascular imaging techniques for appropriate decision making. Here, we report three cases of successfully managed LM bifurcation lesions using the provisional stenting technique with the guidance of intravascular ultrasound, fractional flow reserve, and heart team. All three patients were doing well and were ischemia-free on stress echocardiography at three months follow-up.
Evaluation of Effect of Nd:YAG and Er:YAG Lasers on the Periodontal Pathogens: A Systematic Review
Authors: Eslami Hosein
Published: June 2021

Introduction: By removing the periodontal pathogens and even the invasive bacteria attacking the tissues as well as the lack of normal periodontal treatment procedures, using a laser, as a complementary therapy, can have positive and useful impacts. The present study aims at investigating the impacts of Nd:YAG and Er:YAG laser on periodontal pathogens.

Materials and Methods: In this systematic review, articles in the databases of Google Scholar, PubMed and Scopus were searched within 2000-2020. All information is classified into a table.

Results: In searching the aforementioned databases and considering the given time interval, 78 articles were found in connection to the searched keywords and abstracts. Once the repeated titles and articles were deleted, 25 studies were selected which were decreased to 16 by the meticulous review by the assessment team. The full text of these 16 articles was reviewed. To make the final choice, 8 articles had the inclusion criteria which included the objectives of this study.

Conclusion: To use the laser in treating the chronic periodontitis, an evidence-based study seems to be conducted. A few scientific pieces of evidence are indicating the advantage of a special laser wavelength in the common treatments.Based on most researches reviewed in this study, the results of the complementary application of Nd:YAG and Er:YAG lasers in treating the chronic periodontitis are the better than the ones obtained from the normal teeth scaling and planning the teeth root surface in terms of the reduced probing depth and subgingival bacteria population. The decision was made to use the laser in periodontal surgery based on the advantages such as hemostasis and less pain after the treatment. However, more studies are needed to apply the laser in periodontal treatments.
Comparison among the Intubation Techniques Employed in the Course of Management of Pan-Facial Trauma
Authors: RJ Aravindh
Published: June 2021

Objective: To find the best method of intubation in patients sustaining pan-facial trauma by comparing the pros and cons of each technique.

Materials and methods: Three different types of intubation techniques (nasotracheal intubation, orotracheal intubation, and sub-mental intubation) were considered in this study. The study population involves 9 patients who have undergone treatment for pan-facial trauma under general anesthesia (3 patients per technique) and the variables of clinical outcome of each group were recorded.

Results: Nasal intubation is the most common and safest method of intubation. However, it can’t be used in some types of pan-facial trauma. In cases like these, oral intubation is not preferred. As it severely compromises maxillofacial repair because of interference with the placement of intermaxillary fixation [3](IMF), which is used to establish the patient s occlusion in the intraoperative period. Submental intubation is an alternative with minimal risk to tracheostomy when orotracheal or nasotracheal intubation is not appropriate. The submental intubation technique gave an uninterrupted surgical field, unobstructed airway, ease of gaining occlusion in general anesthesia, less intraoperative and postoperative complications and it overcomes the disadvantages of both nasotracheal and orotracheal intubation.

Conclusion: Preferred techniques of securing an airway are orotracheal, nasotracheal intubation. However these techniques may not always be applicable, thus a trauma surgeon-anesthetist team should always have alternative techniques in their armamentarium which secures the patient's airways without interfering with occlusion, to gain at most postoperative esthetic and functional results.
Knowledge about Oral Maxilofacial Surgery among Compulsory Rotatory Residential Intern
Authors: RJ Aravindh
Published: June 2021

Oral and maxillofacial surgery is a specialty of dentistry concerned with the diagnosis and surgical treatment of congenital or acquired disease, dysfunction, defects or injuries of the mouth, jaws, face, neck, and adjacent craniofacial regions. Oral surgery deals with the diagnosis and treatment of oral conditions of the jaw and mouth structures that require surgical interventions. This dental specialty is limited to the surgical removal of the teeth and the treatment of disease, deformities and defects of the jaws and associated structures. so the current concepts of oral surgery should be aware so that the interns gain ample amount of knowledge in this field
Synthetic Putty and Simultaneous Short Implant Placement in Crestal Sinus Lifting Procedures: 13–36 Months Follow-Up: A Case Series
Authors: Boogaard Maarten J
Published: June 2021

Introduction: Aim of this investigation is to show that in sites with less than 4 mm of bone height of the sinus floor, synthetic putty bone graft and simultaneous short implant placement in crestal sinus lifting procedures result in sufficient bone gain, and is a valuable option to the more invasive lateral-window approach. Case presentation: Four patients missing a single tooth or more in the posterior maxilla with remaining alveolar ridge height of less than 4mm underwent crestal sinus lift procedures with bone grafting using a synthetic putty material simultaneously. Loading of the short implants was done with a minimum of 4 months after placement showing bone growth around the implant and lift of the Schneiderian membrane between 2.3mm-7.3mm. Conclusion: Crestal sinus lift, in combination with a short implant and a synthetic putty bone graft, is a good alternative for lateral more invasive sinus lift when the thickness of the sinus floor is less than 4mm.
The Determination of nonlinear second-order diffraction forces acting on a ship based on three-dimensional theory
Authors: Семенова В.Ю. , Альбаев Д.А.
Published: June 2021

В статье рассматривается определение нелинейных дифракционных сил второго порядка, на основании применения трехмерной потенциальной теории. Для их определения необходимо вычисление потенциалов второго порядка малости. Представленное решение в отечественной практике является новым. Решение задачи осуществляется на основании методов малого параметра и интегральных уравнений с учетом нелинейного граничного условия на свободной поверхностью жидкости. В работе показана возможность расчета интегралов по свободной поверхности напрямую за счет их сходимости на бесконечном удалении от судна. Нелинейные дифракционные силы и моменты определяются в работе с использованием различных функций Грина: для бесконечно-глубокой жидкости и жидкости ограниченной глубины, когда H→∞. Полученные результаты практически полностью согласуются между собой. Приводятся результаты расчетов дифракционных сил и моментов для четырех разных судов. Расчеты представлены в сравнении с расчетами по двумерной теории, выполненными также для случая бесконечно глубокой жидкости и жидкости ограниченной глубины при больших значениях отношения глубины к осадке H/T. Показано хорошее согласование результатов между собой. Показана возможность расчета нелинейных дифракционных сил на произвольных курсовых углах.

The article discusses the definition of nonlinear diffraction forces of the second order, based on the application of three-dimensional potential theory. To determine them, it is necessary to calculate the potentials of the second order of smallness. The presented solution is new in domestic practice. The problem is solved on the basis of small parameter methods and integral equations taking into account the nonlinear boundary condition on the free surface of the liquid. The paper shows the possibility of calculating the integrals over the free surface directly due to their convergence at an infinite distance from the ship. Nonlinear diffraction forces and moments are determined in the work using various Green's functions: for an infinitely deep fluid and a fluid of limited depth when H → ∞. The results obtained are in almost complete agreement with each other. The results of calculations of diffraction forces and moments for four different ships are presented. The calculations are presented in comparison with the calculations according to the two-dimensional theory, performed also for the case of an infinitely deep liquid and a liquid of limited depth at large values of ratio H / T. Good agreement of the results with each other is shown. The possibility of calculating nonlinear diffraction forces at arbitrary heading angles is shown.
On the development of the draft requirements of the rules of the Register of Shipping in terms of restrictions on sleming and exposing the screw
Authors: Борисов Р.В. , Лузянин А.А.
Published: June 2021

Настоящая статья является третьей из цикла статей, посвященных корректировке кодекса ИМО по остойчивости в части ограничений продольной качки. В ней рассмотрены подходы к ограничениям по погоде из условий, возникающих при продольной качке для судов различных типов и предложены критерии оценки этих явлений на нерегулярном волнении разной интенсивности.
На основании выполненных систематических расчетов продольной качки на нерегулярном волнении получены зависимости вероятности слеминга и оголения винта от скорости и интенсивности волнения для транспортных судов. Полученные формулы позволяют оценить указанные показатели мореходности. При этом ставится цель расширения нормативной базы для обоснованного назначения эксплуатационных ограничений по погоде и району плавания судов при совершенствовании Правил Российского Морского Регист­ра Судоходства на основе общего подхода к нормированию мореходности, со­гласующегося с методикой разработки новой Международной конвенции о гру­зовой марке 2000.
Предлагаемый подход к определению дополнительных критериев мореходности для оценки эксплуатационных ограничений судов по погоде из условий мореходности может быть использован на практике для совершенст­вования нормативных требований Регистра.

This article is the third in a series of articles devoted to the adjustment of the IMO stability code in terms of pitching limitations. It considers approaches to weather restrictions based on the conditions arising during pitching for ships of various types and proposes criteria for assessing these phenomena on irregular waves of different intensities.
Based on the performed systematic calculations of pitching on irregular waves, the dependences of the probability of slamming and propeller bareness on the speed and intensity of waves for transport vessels were obtained. The formulas obtained make it possible to evaluate the indicated seaworthiness indicators. At the same time, the goal is to expand the regulatory framework for the justified assignment of operational restrictions on the weather and the area of navigation of ships while improving the Rules of the Russian Maritime Register of Shipping on the basis of a general approach to the regulation of seaworthiness, consistent with the methodology for the development of a new International Convention on Load Mark 2000
The proposed approach to the definition of additional seaworthiness criteria for assessing the operational limitations of ships by weather based on seaworthiness conditions can be used in practice to improve the regulatory requirements of the Register.
Examples of implementation of a multi-model qualimetric method for system optimization of marine engineering and marine infrastructure facilities
Authors: Алексеев А.В.
Published: June 2021

Стремительный рост сложности современных объектов морской техники и морской инфраструктуры, ужесточение требований к качеству процессов их создания и эксплуатации на всех этапах жизненного цикла обуславливают особую необходимость поиска инвариантных к специфике условий эксплуатации технических и технологических решений. Соответственно, моделей их оценки, анализа, синтеза, оптимизации, исследовательского проектирования и обоснования их свойств и характеристик, включая количественный анализ конкурентной способности, перспективности и путей их технологического развития. В развитие ранее представленных модели и методики инвариантной оценки качества и эффективности объектов морской техники и морской инфраструктуры рассмотрены конкретные примеры реализации разработанного Полимодельного квалиметрического метода системной оптимизации объектов исследовательского проектирования. Включая оценку и мониторинг технической готовности объектов критической инфраструктуры, отдельных кораблей и их соединений, систем управления оружием и техническими средствами, электроэнергетических систем, автоматизированных систем управления в защищенном исполнении, автоматизированных интеллектуальных систем поддержки принятия решений.

The rapid increase in the complexity of modern marine equipment and marine infrastructure, the tightening of requirements for the quality of the processes of their creation and operation at all stages of the life cycle make it particularly necessary to find technical and technological solutions that are invariant to the specifics of the operating conditions. Accordingly, models of their evaluation, analysis, synthesis, optimization, research design and justification of their properties and characteristics, including a quantitative analysis of their competitive ability, prospects and ways of their technological development. In the development of the previously presented model and methodology for invariant assessment of the quality and efficiency of marine engineering and marine infrastructure objects, specific examples of the implementation of the developed Polymodel qualimetric method for system optimization of research design objects are considered. Including assessment and monitoring of the technical readiness of critical infrastructure facilities, individual ships and their connections, weapons and technical equipment control systems, electric power systems, automated control systems in a secure design, automated intelligent decision support systems.
Method of experimental evaluation of the efficiency coefficient of vibration protection of the rope-rod coupling "MAMSAR+A" of the diesel generator set DGA-8.83
Authors: Минасян М.А. , Минасян А.М. , Цзэн Ц.
Published: June 2021

Объектом исследования является опытный образец запатентованной канатностержневой муфты (КСМ) «MAMSAR+А» в качестве привода дизель-генераторного агрегата ДГА-8,83 мощностью 9,56 кВт при частоте вращения 1500 мин-1 с дизелем 2Ч 8,5/11 и генератором «ГК-5,6».
Целью исследования является экспериментальная оценка коэффициента эффективности вибрационной защиты КСМ.
Поставленная цель достигается разработкой и реализацией оригинальной методики экспериментальной оценки коэффициента эффективности КСМ с анализом и выводами результатов экспериментальных исследований.
Экспериментальные исследования проводятся в два этапа. Первый этап – с упругим соединением КСМ, второй этап – с жестким соединением.
Оригинальность методики экспериментальной оценки коэффициента эффективности вибрационной защиты КСМ главным образом заключается в том, что между двумя этапами экспериментальных исследований КСМ не демонтируется. Следовательно, качество центровки не нарушается.
Усредненный коэффициент эффективности виброизоляции КСМ составляет от 3 до 8 дБ.

The object of this research is a prototype of the patented wire rope coupling (KSM) "MAMSAR+A" as a drive for a diesel-generator unit DGA-8.83 with a power of 9.56 kW at a speed of 1500 min-1 with a 2CH 8.5/11 diesel engine and a generator "KG-5.6".
The aim of the research is to experimentally evaluate the efficiency coefficient of vibration protection of the KSM.
This goal is achieved by developing and implementing an original method for experimental evaluation the efficiency coefficient of the KSM with analysis and conclusions of the results of experimental studies.
Experimental studies are conducted in two stages. The first stage - with an elastic connection of the coupling, the second stage - with a rigid connection.
The originality of the method of experimental evaluation of the efficiency coefficient of vibration protection of the KSM mainly lies in the fact that the KSM is not dismantled between the two stages of experimental research. Therefore, the quality of alignment is not violated.
The average coefficient of vibration isolation efficiency of the KSM is from 3 to 8 dB.
Improving the methodology for calculation of energy losses in axial turbine cascades
Authors: Левенталь М.Ю. , Погодин Ю.М. , Миронов Ю.Р.
Published: June 2021

Представлена оценка неопределенности прогнозирования потерь энергии в решетках профилей осевых турбин. В сравнении с экспериментальными данными рассмотрены эмпирическая модель ЦИАМ и метод CFD анализа в рамках RANS модели. Геометрические и режимные параметры решеток профилей варьируются в широком диапазоне. Результаты CFD расчета отличаются существенно в зависимости от модели турбулентности. Наименьшая неопределенность получена для модели рейнольдсовых напряжений RSM. Определено выборочное стандартное относительное отклонение для анализируемой базы данных. Применительно к CFD расчету данное отклонение составило 18,6%, применительно к эмпирической модели ЦИАМ 46,4%. Разработана эмпирическая модель коррекции потерь полученных по результатам CFD анализа с моделью турбулентности RSM. Корректирующая функция включает в себя геометрические и режимные параметры решеток и особенности течения в межлопаточном канале (всего 14 параметров). Использование разработанного подхода позволило снизить неопределённость прогнозирования потерь в 2 раза. В результате работы выборочное стандартное относительное отклонение предсказания потерь для рассматриваемой базы решеток профилей составило 9,3%.

Estimation of the uncertainty in predicting profile losses using various models was performed. In comparison with the experimental data, empirical model of CIAM and method of CFD analysis are considered. RANS models are used. The geometric and operating parameters of the analyzed turbine cascades vary over a wide range. Turbulence models strongly influence loss prediction uncertainty. The smallest uncertainty was obtained using the RSM turbulence model. The sample standard deviation for the considered turbine cascades base was determined. The deviation for CFD analysis is 18.6%. For the empirical model of CIAM the deviation is 46.4%. The new empirical model has been created to correct the results of calculating losses according to the RANS model using the RSM turbulence model. The corrective function takes into account the influence of the geometric and operating parameters of the turbine cascades and the features of the airfoil flow (14 parameters in total). The developed approach allows reducing the uncertainty in the estimation of losses according to the RANS model by 2 times. As a result, the sample standard deviation in the prediction of losses is 9.3% for the considered turbine cascades base.
Method for practical calculation of underwater vehicle's television communications
Authors: Мартынов В.Л. , Сиек Ю.Л. , Борисов А.Н.
Published: June 2021

В статье обосновывается и предлагается для практического применения методика расчёта подводных телевизионных коммуникаций, апробированная при проведении испытаний отечественных подводных аппаратов на морских акваториях Белого и Баренцева морей. Последовательно проводится расчет освещенности толщи воды между осветителем и объектом наблюдения; определяется суммарная освещенность на входе объектива телевизионной камеры, создаваемая отраженным от объекта светом и помехой обратного рассеяния; рассчитывается контраст белых и черных объектов. В заключении показан расчет изменения пороговой чувствительности камеры в зависимости от дальности наблюдения. Представленная методика может использоваться при проектировании систем технического зрения обитаемых и необитаемых подводных аппаратов для получения данных о предполагаемых дальностях наблюдения объектов с различными коэффициентами отражения с заданными параметрами прожекторного осветителя.

The article proposes a technique for calculating underwater television communications, which was confirmed during tests of domestic underwater vehicles in the waters of the White and Barents Seas. First, the illumination of the water between the illuminator and the object of observation is calculated; then the total illumination at the entrance of the TV camera lens, created by the light reflected from the object and the backscattering interference, is determined; and finally, the contrast of white and black objects is calculated. In conclusion, the calculation of the change in the threshold sensitivity of the camera depending on the observation range is shown. The presented technique can be used in the design of computer vision systems of crewed and unmanned underwater vehicles to obtain data on the estimated observation ranges of objects with different reflection coefficients and with the specified parameters of the searchlight illuminator.
SELENGINSK GARRISON AND CAVALRY FOUNDATION IN 1690–1693
Authors: Bagrin Е. А.
Published: June 2021

The article examines the issues related to Selenginsk garrison in the 90s XVII century. This period in Dauria is associated with the military reforms of F.A. Golovin after the conclusion of the Treaty of Nerchinsk in 1689. The garrisons of Trans–Baikal forts had a number of problems that had to be solved. Selenginsk warriors got salaries like foot Cossacks, but in fact they performed equestrian services without receiving money from the state for horse service. This circumstance led them to impoverishment and discontent. Selenginsk warriors asked to increase the garrison and pay them higher salaries as for horse Cossacks. F. Golovin granted their request partially – he transferred only one third of people to the equestrian service. Udinsk warriors or «temporary workers» were transferred to Selenginsk for strengthening the military contingent of the fortress. The consequences of this decision indirectly led to a military revolt in 1696. The article compares the personnel of Selenginsk garrison in 1683 and 1693. There is Information about the military services of warriors: D. Mnogogreshny, L. Uvarov (Fedorov), A. Berezovsky, S. Kazants, I. Novikov, S. Krasnoyar and others. The experience of cavalry foundation in the Selenginsk fortress were used by F. Golovin to reform Irkutsk garrison.
«PLEASE PROTECT ME, AFTER ALL, FROM PHYSICAL DEATH…»: NEW FACTS TO BIOGRAPHY OF N. F. KALININ
Authors: Zorya R. S.
Published: June 2021

Based on archival sources at the Institute of language, literature and Arts of Tatarstan Republic Academy little-known facts are reported about the biography of an eminent Kazan historian, archeologist, a museum scientist and pedagogue Nikolay Filipovich Kalinin (1988–1959). These sources demonstrate the difficult circumstances in which TASSR Central Museum was in those years and partially convey the situation that reigned in the walls of the institution. The events related to the conflict between the researcher and the leaders of the TASSR Central Museum in 1934–1936, which led to his dismissal, are considered in detail. Involvement of materials of judicial and investigative measures in Kalinin case, as well as the use of the office documentation and the scientist’s epistolary heritage gave the opportunity to shed light on difficult events in the life of the researcher in 1936–1938.It is established that one of the main founders of archeological school in Kazan in 1937 for a short period of time worked on the Crimean peninsula in Evpatoria Museum of local history.
Targeting cytoskeletal phosphorylation in cancer
Authors: Llorente-González Clara , González-Rodríguez Marta , Vicente-Manzanares Miguel
Published: June 2021

Phosphorylation of cytoskeletal proteins regulates the dynamics of polymerization, stability, and disassembly of the different types of cytoskeletal polymers. These control the ability of cells to migrate and divide. Mutations and alterations of the expression levels of multiple protein kinases are hallmarks of most forms of cancer. Thus, altered phosphorylation of cytoskeletal proteins is observed in most cancer cells. These alterations potentially control the ability of cancer cells to divide, invade and form distal metastasis. This review highlights the emergent role of phosphorylation in the control of the function of the different cytoskeletal polymers in cancer cells. It also addresses the potential effect of targeted inhibitors in the normalization of cytoskeletal function.
New Algorithm for Upgrading of Portal Radiation Monitors with Plastic Detectors Part 2. Optimization of Values of Alarming Threshold and Smoothing
Authors: Stavrov Andrey
Published: June 2021

The way of improving of traditional algorithm for portal radiation monitors with plastic detectors by optimization of values of alarming threshold and smoothing is discussed in the second part of the article. As the result of such optimization the probability of detection of radioactive sources may be significantly increased and probability of false alarms decreased as well.
«Autorretrato» del concejal en España
Authors: Cordero Guillermo , Pérez-Nievas Santiago
Published: June 2021

En este artículo llevamos a cabo una detallada descripción del perfil del concejal en España a partir de datos de una encuesta propia realizada entre 2018 y 2019 a representantes locales de toda España. Con 1.250 respuestas obtenidas, los resultados muestran que los partidos presentan claras diferencias en el modo de confeccionar sus listas electorales, así como en el perfil resultante de dicha selección. Mientras que en los partidos más jóvenes el porcentaje de concejales elegidos mediante primarias es mucho más alto y el perfil medio es de menor edad, feminizado y con niveles de estudios diversos, en el PP la forma de selección es menos participativa, resultando en concejales de mayor edad, en su mayoría hombres y con niveles de estudios superiores. En el PSOE es algo más común la presencia de concejales elegidos mediante formas de selección colegiada, con perfiles de mayor edad, aunque feminizados y con niveles educativos diversos. Nuestros datos también muestran importantes conexiones entre los partidos en el ámbito local y el tejido asociativo, sobre todo en el caso de los concejales de partidos de izquierda: sindicatos y asociaciones de mujeres en el caso del PSOE; asociaciones de derechos humanos, ecologistas y vivienda en las confluencias. En los partidos de derecha son más comunes los contactos con asociaciones de empresarios y organizaciones relacionadas con la ayuda y la caridad. Por último, en el artículo se lleva a cabo una descripción de las actitudes y valores de los concejales españoles. Más allá de las diferencias esperables en el marco de la ideología y el nacionalismo, encontramos que existe una mayor heterogeneidad ideológica en distintas Comunidades Autónomas entre los concejales de Ciudadanos y del PP que entre los concejales de partidos de izquierda.
THE DISTANCE RELATED SPECTRA OF SOME SUBDIVISION RELATED GRAPHS
Authors: Gopalapillai I. , Scaria D.C.
Published: June 2021

Let $G$ be a connected graph with a distance matrix $D$. The distance eigenvalues of $G$ are the eigenvalues of $D$, and the distance energy $E_D(G)$ is the sum of its absolute values. The transmission $Tr(v)$ of a vertex $v$ is the sum of the distances from $v$ to all other vertices in $G$. The transmission matrix $Tr(G)$ of $G$ is a diagonal matrix with diagonal entries equal to the transmissions of vertices. The matrices $D^L(G)= Tr(G)-D(G)$ and $D^Q(G)=Tr(G)+D(G)$ are, respectively, the Distance Laplacian and the Distance Signless Laplacian matrices of $G$. The eigenvalues of $D^L(G)$ ( $D^Q(G)$) constitute the Distance Laplacian spectrum ( Distance Signless Laplacian spectrum ). The subdivision graph $S(G)$ of $G$ is obtained by inserting a new vertex into every edge of $G$. We describe here the Distance Spectrum, Distance Laplacian spectrum and Distance Signless Laplacian spectrum of some types of subdivision related graphs of a regular graph in the terms of its adjacency spectrum. We also derive analytic expressions for the distance energy of $\bar{S}(C_p)$, partial complement of the subdivision of a cycle $C_p$ and that of $\overline {S\left( {C_p }\right)}$, complement of the even cycle $C_{2p}$.
On the definition of thermo-physical properties of drilling mud and cement slurry in well drilling
Authors:   Caspian Drilling Company, Gasymov O.I.
Published: June 2021

A great number of studies are dedicated to the definition of heat conductivity of drilling muds and cement slurries. It should be noted that existing works on the specification of heat conductivity of the drilling mud are based on either experimental or theoretical studies in which well conditions are reflected incompletely. Considering all above-mentioned aspects, the practical interest consists in the definition of thermal conductivity of drilling muds and cement slurries in well drilling on the basis of the data obtained at the wellhead during unsteady processes execution. The paper offers the method of definition of the heat conductivity of drilling mud and cement slurry flows based on the data of temperature change at the well entry and exit through the time, which can be recorded directly at the wellhead. The method is based on the accurate solution of reverse problem of thermal exchange in the movement of drilling mud and cement slurry via Laplas transformation.
Feature analysis of vapor-phase chromatography of high boiler organic compounds
Authors:   Institute of Chemistry of Additives, Azerbaijan Republic, Farzaliyev V.M. , Aliyeva M.N. ,   Institute of Chemistry of Additives, Azerbaijan Republic
Published: June 2021

The paper presents the physical-chemical features of the vapor-phase chromatography method for the analysis of polar high boiler organic compounds. The application conditions of vapor-phase chromatography for the research of petrochemical synthesis products are analyzed. The mechanism of chromatographic seperation of compounds in the vapor-liquid-solid phase system is reviewed. The physical-chemical parameters of application of vapor-phase chromatography are provided. It is shown that liquid crystals can be used for the efficiency increase of the analysis of high boiler organic compounds as hard carriers. Thus, isomer compounds in the flow of water steam may be seperated. The usage of water-formamide mixture as a gas carrier enables the analysis of high boiler amine-based organic compounds. Natural, modified zeolite-containing tuff, diatoms and zeolites can be used as adsorbents and hard carriers in the separation of high boiler products of petrochemical synthesis.
Intelligente Symbiose
Authors: Fuchs Franz
Published: June 2021

Edge Computing gewinnt mit der Verbreitung von Cloud-basierten Softwarelösungen rasch an Bedeutung. Im Umfeld der „Shop Floor-IT“ und insbesondere für den Einsatz von MES ist dieses Thema vor dem Hintergrund anwachsender Datenströme relevant. Einzelne Funktionen, Aufgaben und Daten werden dabei von der zentralen MES-Anwendung an die äußeren „Ecken“ eines Netzwerks verlegt, um die Cloud zu entlasten und von Internetverbindungen und deren begrenzten Übertragungskapazitäten unabhängiger zu werden.
Maschinelle Lernverfahren für die Praxis
Authors: Mühlbauer Matthias , Würschinger Hubert , Hanenkamp Nico
Published: June 2021

Methoden des Maschinellen Lernens (ML) bieten das Potential zur vereinfachten Datenanalyse sowie die Möglichkeit, hochwertiges Prozesswissen bei technischen Prozessen zu extrahieren. Im Produktionsumfeld werden ML-Verfahren jedoch aufgrund von fehlendem Fachwissen bislang nur unzureichend eingesetzt, sodass Chancen ungenutzt bleiben.
Autarker Vertrieb setzt komplexe Angebote weltweit um
Authors: Knep Daniel
Published: June 2021

Ein Meilenstein für den Maschinen- und Anlagenbau ist ein fehlerfreier Planungs- und Angebotsprozess für komplexe Produkte im Vertrieb – visualisiert, interaktiv und technisch geprüft. Eine Software für die Variantenkonfiguration mit interaktiver 3D-Visualisierung sorgt dafür, dass der Vertrieb direkt mit dem Kunden beste Lösungen erarbeiten kann.
Präzise Presskraft für die Qualitätssicherung
Authors: Grundler Edgar
Published: June 2021

Pneumohydraulische Antriebszylinder der Reihe „TOX-Kraftpaket“ stellen für die innovativen Gummi-Prüfstöpsel-Maschinen der Firma Reko mehr als nur eine zentrale Baugruppe dar. Mit diesen Maschinen lassen sich Werte wie Shore-Härte, E-Modul, Dämpfung oder Rückprall-Elastizität an Teilen für die Automobilindustrie testen.
Neue Herausforderungen aus Elektromobilität und Leichtbau
Authors: Reichelt Anette
Published: June 2021

Zur Dreifach-Konferenz, bestehend aus der 25. „Sächsischen Fachtagung Umformtechnik“, der 6. „Internationalen Konferenz für Genauigkeit in der Umformtechnik“ (Icaft) sowie der 6. „Internationalen niederschlesisch-sächsischen Konferenz für moderne Metallumformung in der Automobilindustrie“ (AutoMetForm) hatte Ende 2018 das Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik (IWU) eingeladen.
Bedarf an autonomer Maschinenbildverarbeitung steigt
Authors: Phillips Jessica
Published: June 2021

In einem Forbes-Artikel war 2015 zu lesen, dass ein robuster Systemintegrator-Channel für Unternehmen unabdingbar ist, um vom Internet der Dinge (IoT) und von Industrie 4.0-Technologie zu profitieren. Diese Aussage hat sich bewahrheitet, insbesondere was die Maschinenbildverarbeitung zur Qualitätssicherung (QS) betrifft. Doch nun befinden sich Unternehmen an einem Wendepunkt, an dem das Zeitalter autonomer Technologie den Bedarf an Systemintegration zwecks Bildverarbeitung komplett hinfällig machen wird.
HMI-Lösungen: Leicht, ergonomisch, funktional
Authors: Lange Katharina
Published: June 2021

Digitale Endgeräte werden immer kompakter und leichter. Dieser Trend macht auch vor industriellen HMI (Human Machine Interface)-Lösungen wie Steuergehäusen und Panel PCs nicht Halt. Rose Systemtechnik hat dieser Entwicklung Rechnung getragen und das flexible Höhenverstellsystem „GTV“ um die Version „light“ für Lasten bis 25 kg ergänzt. Die Drehneigekupplung setzt weitere Akzente für zeitgemäße Bedienkonzepte.
Industrie 4.0-Lösungen in der Messtechnik
Authors: Küster Sandra
Published: June 2021

Unter dem Motto „Control 2019 vernetzt Wissenschaft und Praxis“ präsentiert sich die internationale Fachmesse für Qualitätssicherung zum 33. Mal. Zu den besonderen Highlights am Messestand von Klingelnberg zählen die Verzahnungsmessung für Stirnräder im Closed-Loop-Verfahren, die neue Hybrid-Technologie für taktile und optische Messtechnik sowie Lösungen für Messaufgaben über die Verzahnungsmessung hinaus.