bluuebunny/crossref_metadata_2025 huggingface dataset:
Observations of Turbulence over Minicoy with the F-type Radiosonde
Authors: VENKITESHWARAN SP , SINHA HARSURENDRASAHAI
Published: May 2022

The paper discusses the F-type radiosonde ascents at Minicoy during the period May 1963 to Apri11964. It is observed that the rate of rotation of the fan remains unchanged upto about 150 mb and that it decreases above. The rotation is related to the rate of ascent of the balloon and its decrease beyond 150 mb shown to be the same or decreases due to leakage of hydrogen through balloon fabric. The regions of turbulence in the upper tropopause and stratosphere are studied from the rate of rotation of the fan. From January to March, turbulence occurs in the tropopause and stratosphere causing often the balloon to burst. This observation confirme the infcrences drawn from the blur at the end of the traces in the Dines’ meteorograph ascents. The vertical component of gusts is estimated to be between 10-20 kmph. The thickness of the region of turbulence is found to be about 4 km and the region of turbulence duping the monsoon months is in the upper troposphere below the tropopause.
Investigação dos mecanismos de resistência ao cisalhamento direto em peças de concreto com fibras de aço e PVA
Authors: Dias Raquel Pedroso , Savaris Gustavo , Balestra Carlos Eduardo Tino , Fakhye Rodnny Jesus Mendoza , Junges Paulo
Published: May 2022

Some mechanical properties of concrete can be improved with the addition of other materials, such as the incorporation of fibers, which results in increased tensile strength and toughness, presenting post-cracking behavior that significantly contributes to the transfer of shear stresses, especially in planes that are propitious to the formation of cracks. To evaluate the effects of the addition of fibers to concrete, in terms of the ultimate shear strength and the mechanisms that constitute it, such as cohesion between the component materials, aggregate interlock, friction and dowel action, an experimental program was carried out. Two mixtures were produced from a conventional concrete mix, with the addition of 0.5% steel fibers and 0.2% synthetic polyvinyl alcohol, PVA fibers. Specimens for direct shear testing, push-off type, were molded, with and without transverse shear reinforcement, and a steel-concrete bond condition was set as a variable. The results showed that the addition of steel fibers results in a significant increase in the shear strength of concrete, na effect not observed with PVA fibers. The aggregate interlock and cohesion mechanisms were responsible for approximately 70% of the ultimate shear strength in all the concrete tested, while the rest was attributed to friction and the dowel effect.
Взаимосвязь идентичностей, аккультурационных ожиданий и психологического благополучия русских жителей Крыма
Authors: Коджа Екатерина
Published: May 2022

Недавние геополитические преобразования в Крыму были непростыми для всех жителей полуострова, в том числе для русского этнического большинства. Целью настоящего исследования является изучение взаимосвязи идентичностей, аккультурационных ожиданий и психологического благополучия двух поколений русских в Крыму. Всего в выборку вошли 294 русских (60% женщин) в возрасте от 18 до 67 лет. В исследовании используются шкалы для идентичностей, аккультурационных ожиданий, шкала удовлетворенности жизнью Динера, шкала самооценки Розенберга. Согласно результатам, предпочтение аккультурационного ожидания интеграции значимо положительно взаимосвязано с самооценкой молодого и старшего поколений. Аккультурационному ожиданию интеграции обоих поколений русских способствует идентичность с местом, с ожиданием сепарации меньшинств положительно взаимосвязана национальная российская идентичность. У старшего поколения этническая идентичность положительно взаимосвязана с ожиданием интеграции, она также значимо положительно взаимосвязана с самооценкой. Полученные результаты обсуждаются с учетом исторического, политического и социального контекста Крыма.
Educare: A Video Production for Teachers in Response to Education 4.0 in Cavite Province
Authors:   University of Perpetual Help System GMA GMA Cavite, Philippines, P. Villanueva, Jr Primo , Z. Hernandez Bethel
Published: May 2022

Trainings and seminars in education have spoken much on the advent of Education 4.0 and have advanced to Education 5.0. It implies that education is towards artificial intelligence or machine learning. The digital technology grew fast. Gadget dependence was very evident even to learners. Informal and nonformal education took place on the internet through gadgets such as smartphones, tablets, etc. Influences of social media is high including the young ones and adults, even to professionals. It is projected that the main problem arising is on the attitude, skills and knowledge of teachers adapting advanced digital technology towards the goal of education 5.0. This study explored on attitude, skills, and knowledge KSA model of business resolving the so-called education institution and industry gap. Bloom’s domain of learning and the structured functional theory were applied, leading to the conception of 4C shells of mind, specifically, critical thinking, creative thinking, communication skills and character. Teachers from different legislative districts of province of Cavite served as respondents utilizing survey questionnaire thru google forms. Percentage, base and rate, and ranking principles were used. Descriptive statistics, such measures of central tendency, measures of position and measures of variation were determined and analyzed. Inferential tools such as Z-test, Analysis of Variance, Tukey’s Honestly Significant Difference test, Levene’s test of homogeneity were employed. The results were evaluated using 8 Scale Balanced Value-Agreement Equivalence. The proponents found out that the teachers have a very high positive attitude in adapting digital advancements in terms of sex, age, type of service school and grade level. Attitude was quite affected by lack of knowledge on the advancements on digital technology. Also, the teachers utilized different digital technology in giving activities to their respective learners. Hence, the study recommended more trainings and workshops, face to face or online, for teachers. An additional teacher’s skill, lesson video production, must be developed. This can enhance their critical and creative thinking, communication skills and character. Its development, also, leads to a magazine of lesson “magazsson” production seen to empower the attitude, skills, and knowledge of teachers. In line, a classroom studio “classtudio” must be designed and provided to strengthen the lesson video and production skills and abilities meeting the goal of teaching as a science and art.
Керамика YAG-Yb как материал для радиационно-балансированной генерации
Authors:   Институт физических исследований НАН Армении, Аштарак, Армения, Демирханян Г. , Патризи Б. ,   Национальный институт оптики, Сесто Фиорентино (Фи), Италия, Точи Г. ,   Институт прикладной физики, Сесто Фиорентино (Фи), Италия, Ваннини М. ,   Национальный институт оптики, Сесто Фиорентино (Фи), Италия, Пирри А. ,   Институт прикладной физики, Сесто Фиорентино (Фи), Италия, Ли Ж. ,   Шанхайский институт керамики китайской академии наук, Шанхай, Китай, Фенг Я. ,   Школа материаловедения и инженерии, Хэнаньский технологический университет, Чжэнчжоу, Хэнань, Китай, Заргарян Д. ,   Институт физических исследований НАН Армении, Аштарак, Армения, Костанян Р. ,   Институт физических исследований НАН Армении, Аштарак, Армения
Published: May 2022

Механизм оптического охлаждения за счет антистоксовой флуоресценции впервые был предложен в 1929 г. [1]. Он заключается в следующем. Поглощая фотон, атом на некоторое время выходит из состояния теплового равновесия с окружающей средой. После восстановления теплового равновесия атом самопроизвольно испускает фотон, длина волны которого смещена по сравнению с длиной волны поглощенного фотона, что приводит к нагреванию или охлаждению материала. Антистоксовое охлаждение для стекла ZBLANP, легированного иттербием, описано в [2,3]. В [4–6] исследованы возможности использования кристаллов LiNbO3, легированных ионами Tm3+, Er3+ и Ho3+ в качестве материалов для оптического охлаждения.
Об усилении в точке и об усилении по направлению в дифракционной картине Фраунгофера системы из многих волновых источников
Authors:   Государственный инженерный университет Армении, Ереван, Армения, Хачатрян А. Ж.
Published: May 2022

В работе обсуждается вопрос о характере усиления по направлению волнового движения, генерированного системой из точечных когерентно излучающих источников. Доказано, что в картине Фраунгофера данное усиление не имеет точечный характер, а производит во всех точках фронтальной части области наблюдения, причем на одинаковую величину. Найдены условия, при которых волновое поле в пределах площадки, перпендикулярной к направлению наблюдения и соразмерной с поперечными размерами области источников, может быть аппроксимировано плоской волной. Показано, что в ряде случаев для получения локального максимума (максимум в точке) в дифракционных опытах необходимо наличие собирающей линзы.
Применение наноструктурной пленки Fe2O3:ZnO для обнаружения водорода
Authors:   Ереванский государственный университет, Ереван, Армения, Алексанян М. С. , Саюнц А. Г. , Шахатуни Г. А. , Симонян З. Г. , Шахназарян Г. Э. , Арутюнян В. М.
Published: May 2022

Изготовлен наноструктурный газовый сенсор на основе состава Fe2O3:ZnO (60:40 вес. %). SEM изображение газочувствительной пленки показало, что размеры частиц в пленке колеблются в области 20–50 нм. Исследованы характеристики газочувствительности Fe2O3:ZnO сенсора к водороду при различных рабочих температурах (50–250°C) и при наличии в окружающем воздухе различных концентраций водорода (75–2000 ppm). Исследуемый Fe2O3:ZnO сенсор проявил чувствительность к водороду, начиная с температуры 50°C, а максимальный отклик наблюдался при рабочей температуре 100°C, при которой отклик превышал 5000. Оптимальное сочетание параметров газочувствительности сенсора наблюдалось при рабочей температуре 200°C.
Нано-архитектура кванторазмерных структур при выращивании из четырехкомпонентной In–As–Sb–P жидкой фазы на подложке InAs(100)
Authors:   Ереванский государственный университет, Ереван, Армения, Гамбарян К. М.
Published: May 2022

В данной обзорной статье мы представляем результаты выращивания, исследования и электронные свойства индуцированных деформацией микро- и наноструктур состава InAsSbP. Зародышеобразование осуществляется из четырехкомпонентной жидкой фазы состава In–As–Sb–P в режиме роста Странского– Крастанова с использованием равновесной жидкофазной эпитаксии. Рассматривается трансформация формы пирамидальных островков, а также особенности роста линзообразных и эллипсоидальных квантовых точек (КТ) II типа, квантовых колец и КТ-молекул. Показано, что применение четырехкомпонентного смачивающего слоя состава InAsSbP позволяет не только более гибко контролировать несоответствие решеток смачивающего слоя и подложки InAs(100), но и открывает новые возможности в наномасштабной инженерии и наноархитектуре нескольких типов кванторазмерных структур. Сканирующий электронный микроскоп высокого разрешения (СЭМ-ВР), а также атомно-силовой (АСМ) и просвечивающий электронный (ПЭМ) микроскопы используются для характеризации наноструктур. Оптоэлектронные свойства выращенных структур в средней инфракрасной области спектра исследованы с помощью измерений спектров поглощения и фотоотклика. Изготовлены и исследованы два типа КТ-фотодетекторов среднего ИК-диапазона. Показано, что применение КТ позволяет улучшить некоторые выходные характеристики созданных устройств, в частности повысить чувствительность, расширить спектральный диапазон и т.д.
Отражение и пропускание излучения структуры кристаллический кремний–черный кремний–перовскит
Authors:   Национальный политехнический университет Армении, Ереван, Армения, Гаспарян Ф. В. , Айвазян Г. Е. ,   Национальный политехнический университет Армении, Ереван, Армения
Published: May 2022

Используя метод матриц переноса исследованы коэффициент отражения и пропускания структур кристаллический кремний-черный кремний-перовскит при условии отсутствия оптических потерь. Получены аналитические выражения для коэффициентов отражения и пропускания. Получены низкие значения коэффициента пропускания и высокие значения коэффициента отражения в видимой области спектра. Обосновано перспективность применения слоев черного кремния для уменьшения пропускания излучения в двуконтакных тандемных перовскит-кремниевых солнечных элементах.
Application of infrared method for thermal comfort workplace evaluation
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Flimel Marián
Published: May 2022

Thermal comfort as a state of physical and mental well-being in a given environment is an important factor in maintaining the health, satisfaction and performance of a person. There are several methods to evaluate it. The subject of this article is the possibility of using an infrared method for determining cumulative room temperature and the temperature difference between the air temperature and the surface temperature of the room construction. There is an example given for the application.
Basic areas of the secondary energy resources use in the blast-furnace ironmaking and application of heat pumps for utilization of sensible heat of the furnace top gas
Authors:   The department of Ecology, Heat-Transfer and labour protection, Faculty of Mechanical Engineering, NMetAU, av. Gagarina, 4, Dnepropetrovsk, 49600, Ukraine, Karakash Yevgeniy
Published: May 2022

Reduction of specific energy consumption at cast-iron production is the topical issue over several decades. One of basic areas of the specific energy consumption reduction is the specific coke consumption reduction due to injection of pulverized coal fuel (PCF). Under the present-day conditions of blast-furnace shop operation, the use of low-potential SERs seems to be the most promising measure with regard to reduction of cast-iron production cost. Proposed measures on improvement of blast-furnace gas calorific power due to the reduction of its moisture content allow the blast-furnace air temperature increase and coke consumption reduction. Also proposed is partial transfer of excess heat from the blast-furnace gas to combustion air by means of the system of heat pumps, which allows increase in calorimetric combustion temperature. In this paper, main parameters are calculated of the heat pump system operation under the conditions of blast-furnace shop at the increased top gas temperature. This paper presents heat pump system operating efficiency and determines conversion factor for the specific conditions (COP).
Study of the gaseous fuel combustion respect to the O2 concentration and NOx formation
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Kulikov Andrii , Fedák Marcel , Abraham Milan , Vahovsky Jakub
Published: May 2022

This paper dedicates thermodynamic and combustion processes respect to the NOx formation and O2.concentration in the combustion air. Model of the boiler and the burners were made in the ANSYS 14.0. Results of the simulations have approved the results of the previous paper that increasing of the O2 concentration leads to the growth of the thermal equipment power but it has negative influence on the NOx production. Increasing of the O2 mass concentration by 1 % is leads to rising of the NOx by approximately 6 %.
Evaluation of Efficiency CHP Systems for Electric Energy Production
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Kulikov Andrii , Fedak Marcel , Abraham Milan , Vahovsky Jakub
Published: May 2022

The main idea of exploitation combined heat and energy production is to reduce usage of primary fuels and with that connected reducing of pollutions due to the integration of renewable energy sources and with regard to the natural environment. Presented work is analysis of CHP system producing electricity and compare to conventional systems.
Assessment of Temperature Ratios During Operation of Pneumatic Artificial Muscles
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Rimár Miroslav , Šmeringai Peter , Fedák Marcel , Abraham Milan
Published: May 2022

: The article deals with the description of experimental measurements performed to describe problematic point real-time temperature measurement of PAMs surface. The original measurement method was replaced by an alternative thermovision measurement. Thermal images were created at predefined times of operation of the device and its predefined operating states. Experimental measurements have shown that the temperature range of the PAMs is within the temperature range that limits the safe operation of the device.
Increasing of Utilization Efficiency of the Produced Energy in the Biogas Plant
Authors:   Department of Automobile and Manufacturing Technologies, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovakia, Straka Ľuboslav
Published: May 2022

The current trend not only in the world but also in Slovakia is to increase the share of energy obtained from renewable sources. Biogas stations also participate in the share of energy obtained from these sources. Today it is mostly modern and environmentally friendly technical equipment. They process a wide range of materials or waste of organic origin through the anaerobic fermentation process. Its result is biogas, which can be further utilized for the production of heat and electricity. However, the efficiency of the biogas production process is closely related to technical equipment of biogas plant. Also, biogas plant technology must, to the extent necessary, respect the conditions of its safe and reliable operation. The contribution is oriented to the design of a possible solution for increasing the efficiency of utilization of the produced energy in the biogas station.
Evaluation of District Heating Systems Status in Countries of Visegrad Group
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Váhovský Jakub , Abraham Milan
Published: May 2022

In the Visegrad group countries is district heating system the dominant wa of production and distribution of heat in residential sector.The European Union is currently suporting the development of district heating systems and the use of more renewable sources in heat production. The article describes the current status of distring heating in the Visegrad group countries.
Influence of Ash Ring on Lime Rotary Kiln Operation
Authors:   Department of Thermal Engineering and Gas industry, Technical University in Košice, Letná 9, 042 00 Košice, Slovakia, Berta René , Lukáč Ladislav
Published: May 2022

This paper describes influence of ash ring on operation of lime rotary kiln in terms of process and energy consumption. Individual influences were described from perspective of combustion and change of process parameters from optimal parameters to limit operational conditions. Paper describes influence of ash ring formation on thermal energy balance during kiln operation from point of total thermal balance.
Increasing the Performance Characteristics of the Experimental Engine by Using the Adjustment of its Planting System and Burning Crew
Authors:   Faculty of Mechanical Engineering, Technical University of Košice, Letná 9,04200 Košice, Slovakia, Puškár Dušan , Puškár Michal , Lumnitzer Ján
Published: May 2022

: The task of all today's automotive designers and engineers is to design and manufacture a vehicle power unit that will be able to meet even the strictest criteria, particularly in the field of environmental and economy. At present, power plant manufacturers apply the philosophy of so- downsizing. It is a reduction in engine cylinder volume and number, with the aim of maintaining and even increasing the original power and torque of the engine. Such a goal can be achieved by optimizing the individual components of the combustion engine or by modifying its control system. Modification of the current vehicle control system consists of prepaid data of fuel and pre-ignition maps.
Thermal Properties of the Unusual Fast-growing Energy Crops
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Oravec Peter , Sarvaš Ján ,   University of Economics in Bratislava, Research-Exhibitory and Information Bio-energy Centre with a seat in Kapušany, 082 12 Kapušany, Slovak republic, Kulikova Olha ,   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic
Published: May 2022

In this paper are discussed the results of experimental calorimetric measurements and organic elemental analysis of the two potencial energy crops, Chinese silvergrass (Miscanthus sinensis A.) and Elytrigia Repens. Experimental measurements have shown that the examined energy crops have a significant energy potential, which is even higher than, for example, brown coal.
Alternative Measurements of Heat Flow Density in Space
Authors:   Department of Process Technique, Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Štúrova 31, 080 01 Prešov, Slovak republic, Flimel Marián
Published: May 2022

The article is focused to alternative measurement of heat flow density in space. There is describe the construction of this equipment. The device will be used to determine heat loss through walls in buildings, pipework, cold stores, heat storage systems ( U value), further to calorimetry, measuring the thermal characteristics of substances and technical applications in which temperature difference is used as a control variable. The device allows measurements in situ conditions.
Design of Equipment and Methodology for Secondary Tar Removal after Gasification in Low Heat Output Generators
Authors:   Department of Thermal Engineering and Gas Industry, Faculty of Materials, Metallurgy and Recycling, Institute of Metallurgy, Technical university of Košice, Letná 9, 042 00 Košice, Slovakia, Pástor Marcel , Lukáč Ladislav , Jablonský Gustáv , Furka Filip
Published: May 2022

This paper described tar formation and its removal methods. There are analysed at the base on measurements realized on the department of heat engineering and gas industry by gasifying of wood pellet and wood chips for a gasification reactor. It is proposed a dry method to tar removing with the cascade configuration filtration cartridges.
Mathematical Model of Electrical Cabinet Cooling
Authors:   Department of Power Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia, Polačiková Mária , Kapjor Andrej , Malcho Milan , Nemec Patrik
Published: May 2022

The article focuses on cooling systems in electrical engineering, which are an interesting area of exploration and discovery. Specifically, it focuses on the mathematical calculation of cooling in electrical engineering. Cooling was provided by a heat pipe, which represents an interesting way of heat removal. The first part describes the origin and effect of elevated temperature in electrical equipment. The second part deals with the proposed procedure of calculating the mathematical model in cooling This calculation relates to cooling by heat pipe at different volumes of working substance and at different temperature loads. The aim was to design a mathematical model by means of which the amount of heat removed from the heat pipe is calculated. The results of this model give theoretical information on the amount of heat removed.
Analysis of Resistance of Clad Composite of Structural Steel and Tombac to Stress at Elevated Temperature
Authors:   VÍTKOVICE ÚAM a.s., Ruská 2887/101 Ostrava, Czech Republic, Sikora Kamil
Published: May 2022

Technological operations, where the temperature gradient significantly affects the thermal expansion of the material, require care in the choice of thermal stress with respect to the material used. A high temperature gradient can result in an increase in thermal stresses, which can result in plastic deformation of the material or even its failure. Clad materials are generally very sensitive to thermal stress. Especially if it is a composite material composed of layers with very different coefficients of thermal conductivity and thermal expansion, in our case structural steel and tombac. The aim of this study is to use the finite element method to simulate the maximum allowable thermal stress of a rolled clad composite composed of layers of tombac (CuZn90/10) and a core of structural steel S235JR + N, when there is no plastic deformation.
Determination of Pressure Loss of Silencers Used in Air Conditioning
Authors:   Department of Power Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia, Kubas Šimon , Kapjor Andrej , Vantúch Martin , Drga Juraj
Published: May 2022

When designing air conditioning systems, it is necessary to pay attention to the level of noise generated during the operation of such a system. Each of the components of the air conditioning system either absorbs or generates noise. Noise in pipes and fittings can be reduced to the required level by dimensioning the pipes. However, noise generated by the fan itself must be eliminated in another way. To eliminate fan noise, silencers are used in the duct just behind the air handling unit. For the correct design of the silencer, it is necessary to pay attention not only to its acoustic attenuation, but also to the pressure loss. If the pressure drop of the muffler is too high, noise will occur directly in the muffler. The pressure losses of the dampers are determined mainly experimentally. Based on the performed measurement, a CFD model of the selected damper was constructed, where the influence of various parameters on the value of the pressure loss of the selected damper was investigated.
Model of the Balance of Fuel Wood Consumption and Emissions Production During Building Heating Depending on the Climatic Conditions of Slovakia
Authors:   Technical University in Zvolen, Faculty of Wood Sciences and Technology, T. G. Masaryka 24, 960 01 Zvolen, Slovak Republic, Dzurenda Ladislav , Banski Adrián
Published: May 2022

The paper presents a model of the influence of the climatic conditions of Slovakia on the consumption of firewood and the production of emissions in creating thermal comfort in a heated building. The temperature of atmospheric air in the range from -11°C to -18°C in winter and the number of days of the heating period in the range of 202-253 in individual localities of Slovakia is reflected in the size of heat losses of the heated building, fuel consumption and emissions production. The presented model allows to balance the consumption of firewood and emission production for individual localities in Slovakia based on the climatic conditions of the locality, the size of the heated object, the thermal efficiency of the boiler and the type of firewood.
The Determination of Water Content in Natural Gas: Aspen Hysys Simulation and P,T Analysis
Authors:   Department of Montaneous Sciences, Technical University of Košice, Letná 9, 040 01 Košice, Slovak Republic, Halek Branislav , Heinz Dávid ,   Institute of Logistics and Transport , Technical University of Košice, Letná 9, 040 01 Košice, Slovak Republic
Published: May 2022

Natural gas is currently one of the most important fossil fuels in the group of non-renewable energy sources, which is used very widely due to its properties. In order to be able to use it safely, it must be adjusted in accordance with the technical-delivery conditions before use. One of the basic quality parameters of natural gas is the water content, which is set at a maximum value of 110 mg per m3 of natural gas. For this reason, it is necessary to correctly determine the water content before the gas treatment, in order to choose the right dehydration technology. In this article, three methods were used to determine the water content of natural gas.
Generation of Nitrogen Oxides in Submerged Arc Furnace during the Production of Ferroalloys
Authors:   Faculty of Materials Engineering, Silesian University of Technology, 8 Krasińskiego str., 40-019 Katowice, Poland, Gil Stanisław , Bialik Wojciech , Kozłowski Sławomir ,   Re Alloys Ltd., 23 Cieszyńska str., 43-170 Łaziska Górne, Poland
Published: May 2022

The paper presents the method of selection of hard coals applied in reducing mixtures used in ferroalloy production technologies. The graphical relationship between reflectivity and reactivity towards SiO as well as reflectivity and the content of hard carbon Cfix has been presented. The use of hard coal in place of coke is associated with the release of significant amounts of volatiles contained in the coal. Increasing the amount of volatile matter may favor the increased generation of NOx from the fuel mechanism due to the nitrogen content in the organic matter of coal. The influence of the thermal mechanism of NOx generation may be limited due to contradictory phenomena. On the one hand, it is possible to have a higher calorimetric combustion temperature of post-reaction gases (due to the content of coal degassing products), and on the other hand, reducing the amount of energy released from SiO afterburning (less SiO due to higher silicon yields). The higher yield of silicon is related to the higher reactivity of appropriately selected hard coals. The mechanisms of NOx formation were presented together with measurements made during the production of the most popular ferroalloy FeSi75. Measurements were carried out along the two axes P1 and P2 in the furnace hood at three distances from the center of the pitch diameter of the electrodes.
Automatic Corrector of Forming Operations on High Speed Forging Machines
Authors:   VÍTKOVICE ÚAM a.s., Ruská 2887/101 Ostrava, Czech Republic, Sikora Kamil
Published: May 2022

When forging rods with diameters larger than 200 mm, excessive wear of the anvils often occurs. Worn anvils then inaccurately measure the continuous dimensions of forged bars. In response, it has been proposed to develop a new aiming method, which should use a laser camera to determine the inter-operational dimensions of the forged bars, taking into account the wear of the anvils. This information would be used to correct the forging algorithm and thus to refine the final forging operations.
Underground Storage of Natural Gas and its Economic Aspects
Authors:   Department of Applied Mathematics and Business Informatics, Faculty of Economics, Technical University of Košice, Letná 9, Slovakia, Liptáková Erika , Janko Jozef
Published: May 2022

After oil and coal, natural gas is the third source of energy for the world economy and is widely used. Stable natural gas supplies continue to rely primarily on underground storage. The aim of this paper is to provide a basic quantitative analysis and basic economic view on the three most common methods of underground storage of natural gas, namely in depleted oil and gas fields, in aquifers and in salt caverns. The analysis focused on the capacity utilization of the selected storage types as well as on the calculation of the cash-flow and internal rate of return of the projects. Based on the results obtained, we can conclude that underground reservoirs created from aquifers are the most costly. The most lucrative variant are reservoirs created from depleted gas and oil fields, as the initial investment is the lowest compared to the other types. For fluctuations in consumption, reservoirs created from salt caverns are the most important, as they have the characteristic of a short delivery time and can react the fastest to market fluctuations.
Research on the Cultivation Strategy of "Craftsman's Spirit" and Engineering Ability of University Students
Authors: Yan Zhou , Zhang Xiyang , Li Xiangyang , Liang Feng , Yang Jing
Published: May 2022

Based on the craftsman's spirit with excellence as the core connotation, this paper analyzes the necessity of integrating the Craftsman's spirit into teaching in Colleges and universities, and puts forward feasible measures to integrate the Craftsman's spirit into teaching, in order to promote the further development of college education and transport professional and technical talents with comprehensive professional quality for enterprises.
Study of the Adaptation and Production of Funk Works on the Electronic Organ
Authors: Wang Xianbo
Published: May 2022

With the continuous development of economy and human thinking, there has emerged the electronic organ, a product of modern science and technology. The electronic organ possesses the volume advantages of the organ and the solemn characteristics of the pipe organ, thus becoming an indispensable instrument in modern music performances. With rich expressive power, the sound of the electronic organ can be integrated with various musical styles. Therefore, it is necessary for a performer to be able to play different instruments, and master various professional skills for performance and composition. Taking the funk work Mr. Toad’s Wild Ride as an example, this article studies and analyzes the adaptation of Funk works on the electronic organ from the perspective of the short band score and the sound production of the electronic organ, especially focusing on the analysis of the distribution of band parts and performing techniques.
New Media Sports Communication on College Students' Sports Behavior
Authors: Zhou Jun , Xia Tian , Wang Yujiao
Published: May 2022

Based on the literature review of new media, communication studies and sports behavior, this paper explores how the new media as the carrier of sports information dissemination mode, communication characteristics, communication factors and communication effects affect college students' sports behavior. According to the exploration of the measurement index system and the discussion of its relationship, this study proposes relevant hypotheses and establishes a model for the impact of sports dissemination on college students' sports behavior. According to the measurement index system, a questionnaire on new media sports dissemination and sports behavior was compiled and distributed. Through the collection and analysis of relevant data, as a quantitative study, SPSS and AMOS tools were used to analyze the influence of new media communication elements on college students' sports behavior. Based on the results of this research, this study proposes the use of new media to strengthen the dissemination of sports information and hopes to improve the educational communication ability of colleges and universities and cultivate students' healthy sports awareness and action sports behavior.
Influence of the Developing Experience of ACGN on Chinese Traditional Culture
Authors: Li Ruiyu
Published: May 2022

Today, with the development of various cultures, traditional culture with a long history has been greatly impacted by popular culture. This article starts with Chinese traditional culture, taking the most representative ACGN culture in popular culture as an example, focusing on the three aspects of cultural popularity, cultural creativity, and cultural communication resources, discusses the significance of ACGN culture to Chinese traditional culture. I hope it can also be inspiring for the cross-cultural communication between China and Japan.
Study on the Role of Fashion Elements in English Teaching
Authors: Yang Furong
Published: May 2022

The teaching form and teaching content are both important, the teaching form should be constantly innovative, so as to attract students' attention of students, so how to better teaching, so that students participate in classroom teaching and extracurricular activities, this is the topic that the teacher has been talking about, but also the author is thinking about. Fashion is a synonym for freshness and novelty. How to apply fashion elements in teaching is the topic that the author discusses in this article.
Reducing Anxiety during Menopause Period Using Active Music Therapy
Authors: Zuo Jiaci
Published: May 2022

Anxiety has become increasingly common, and music therapy is considered to be one of the most effective ways to treat stress and anxiety. In this study, 30 women between the ages of 45 and 55 were recruited, and then anxiety level was measured by prior treatment, post-treatment, and follow-up. In music therapy, participants were asked to rewrite lyrics with original tunes. The anxiety level of post-treatment and follow-up periods are expected to be lower than that of prior treatment (P < 0.05). Several factors may affect the results of this study. One potential reason is that music lowers cortisol levels, and music might make people feel less anxious when they encounter unknown areas. Therefore, active music therapy is effective for anxiety menopausal women.
Research on the Photographic Printing Technology of Pictorials in the Context of Early Chinese Films
Authors: Zhao Zijun
Published: May 2022

Among the numerous studies on the history of early Chinese films, film derivatives, as a part of it, have been neglected to some degree. Even worse, there are fewer studies on the material media with an archaeological concept. To fill this void, this paper adopted the column "The World of Screen" of the Pei-yang Pictorial News from 1933 to 1934 and the photo copperplate printing and zincography used as the object of study. Based on the research approaches of media archaeology (materiality, heterogeneity and reproduction), this study investigated the involvement of film promotion in the process of social cognitive shaping under new technologies, and highlighted the new graphic design, the image of the naked women and aesthetic changes brought about by film promotion from the perspectives of sensory extension, reading space expansion and power distribution. Finally, the study attempted to clarify the resurgence and rupture of media logic from the remnants of theatrical posters and the emergence of electronic advertising via modern concerns.
Research on the Visual Promotion Design of Fujian and Taiwan Dan People's Cultural Brands from the Perspective of Intangible Cultural Heritage Inheritance
Authors: Gao Guyue
Published: May 2022

With the continuous progress of all aspects of modern society, comparing the intangible cultural heritage, the objective and accurate evaluation finds that its crisis and survival coexist. As an important part of southern Fujian culture, Fujian and Taiwan Dan People’s customs are on the verge of disappearing due to the special living environment of their ethnic groups and the impact of the rapid development trend of modern society, therefore, this topic is devoted to injecting fresh blood into the dissemination form of Fujian and Taiwan Dan People’s customs, through visual design, it breaks through the traditional dissemination form to attract more young groups, arouse the interest and attention of the mass for customs of Fujian and Taiwan Dan People’s customs, so as to achieve the purpose of disseminating and promoting the culture.
The Value of Literary Communication in the Formation of Ancient Chinese Literary Schools
Authors: Du Yonglin
Published: May 2022

After thousands of years of development, accumulation and maintenance, the achievement of cultural value of Chinese ancient literature is obvious to all. As the essence of Chinese traditional culture, it is the core of Chinese national thought and national spirit. Publicizing, protecting and inheriting ancient literature is the top priority of cultural inheritance in the new era. The spread of Chinese culture is also particularly important. From the ancient saying that China was a teacher and a father for life to today's students sitting in the classroom, this is not only a way of literary communication, but also a very important and essential way of communication, which makes ancient Chinese literature form a school and have a long history. Based on the analysis of "Yuanyou style" of Sumen literati and "living method theory" of LV benzhong, this paper understands how ancient Chinese literary schools were formed and spread.
The Study on the Aesthetic Style of Inner Mongolia Films from the Perspective of Geo-cultural
Authors: Zhou Xiangdong
Published: May 2022

In a history spanning more than 70 years, Inner Mongolian films have long formed a unique aesthetic style and artistic form compared to other regional films. Therefore, it is particularly important to refer to Inner Mongolian films as "locality". The naming of Inner Mongolia films should highlight the "locality", that is, the concept must be distinguished from the perspective of nationality and geography. Natural space, social imagination space, and time space have jointly constructed the spatial landscape of Inner Mongolia films, while the northern nomadic culture and the multicultural complex of the local area outside the Great Wall construct the regional cultural mirror image of Inner Mongolia films. It can be said that the image system and narrative mechanism of spatial landscape and cultural mirroring image should become the basic principle and aesthetic standpoint of the semantic naming of "Inner Mongolia Films".
A Comparative Study of Length Approach and Traditional Writing Methods
Authors: Liu Dan
Published: May 2022

In order to improve second language learners' English level, especially their writing level, many effective methods have been put forward in the field of foreign language teaching. The Length Approach is considered as an English writing method proposed by Professor Wang Chuming in China. Combined with the characteristics of Chinese foreign language teaching environment, this paper aims to improve learners' writing level. So far, more and more scholars have begun to pay attention to this teaching method and achieved remarkable teaching results. The focus of this study is to explore the essence of the Length Approach and the differences between traditional writing methods.
Study on the Impact of Agricultural Digitization on the Output of Agricultural Products in China
Authors: He Huanhuan , Wang Haoran , Guo Zhixian , Zhou Zejiong
Published: May 2022

With the popularization of the Internet and the promotion of Rural Revitalization Strategy, agricultural digitization has attracted the attention of many scholars. The study of agricultural digitization has important theoretical and practical significance for the development of agriculture. This paper selects the time series data from 2012 to 2020 and takes the agricultural output value as the explanatory variable. The number of agricultural broadband access users, Internet penetration and optical cable line length are selected as the statistical indicators of agricultural digitization. The entropy method is used to weight the three statistical indicators, and finally a weighted index is obtained as the main explanatory variable. At the same time, the total power of agricultural machinery, effective irrigation area and net amount of chemical fertilizer application were selected as explanatory variables. This paper analyzes the impact of agricultural digitization on the output of agricultural products in China by using row linear regression method. Finally, it summarizes the impact of agricultural digitization on agricultural gross output value, and puts forward corresponding policy suggestions.
Research on Agricultural Total Factor Productivity and its Influencing Factors in the Central Plains
Authors: Zhang Yichun , Zheng Jixiao , Chen Qiang , Zhang Xieneng
Published: May 2022

In the current era of promoting rural revitalization, it is very important to improve the efficiency of agricultural production and then improve the level of agricultural modernization, which will help achieve poverty alleviation and build a beautiful countryside. Focusing on the theme of the improvement of agricultural total factor productivity in the Central Plains region, this paper uses the agricultural production efficiency theory and the nonparametric index method of DEAP-Malmquist to construct a measurement model of agricultural production efficiency in the Central Plains region. Data, the agricultural total factor production efficiency (TFP) and its decomposition values, such as: pure technical efficiency index and scale efficiency change index, carry out horizontal and vertical comparative analysis, to explore the differences in agricultural productivity in various regions and their sources of growth. Then use the panel data regression model to analyze many influencing factors of agricultural TFP, such as: economic development level, labor quality and so on. Finally, according to the empirical results, some policy references are put forward to ensure the safety of grain production in the Central Plains and improve the level of agricultural modernization.
Book Review of Textual Poachers: Participatory Culture of Fandom
Authors: Shi Zhihao
Published: May 2022

Textual Poachers: Television Fans & Participatory Culture by American scholar Henry Jenkins breaks the stereotypes of fandom held by academia and puts forward original views based on cultural studies by Antonio Gramsci and “poaching” originally introduced by Michel de Certeau. He believes fans are not passive consumers of content, but poachers that reinterpret, appropriate and create textual meanings. Sharing similar ideas and preferences, fans build a participatory utopia against big media to share their opinions freely. This book provides a new paradigm for fan studies and helps develop and harness the potential of fan communities.
Research on Ecological Civilization Construction of Urban Agglomeration in Yangtze River Delta based on Principal Component Analysis
Authors: Tao Ziyan , Zhu Jinsheng , Liu Shuyi
Published: May 2022

In view of the current situation and differences of the development level of ecological civilization construction of urban agglomeration in the Yangtze River Delta, in order to improve the development level of ecological civilization construction of urban agglomeration in the Yangtze River Delta, 26 prefecture level cities in the Yangtze River Delta are selected as the research object. Based on the relevant data of Anhui Statistical Yearbook in 2021, 14 indicators from three aspects of economic development, social development and environmental protection are selected to establish a comprehensive evaluation system, a principal component analysis model is constructed to comprehensively evaluate the ecological civilization construction level of urban agglomeration in the Yangtze River Delta, and a k-means clustering model is established to turn it into a high, high, general and low-level development area for spatial dimension analysis. Finally, reasonable suggestions are put forward for the construction and development of ecological civilization in the urban agglomeration of the Yangtze River Delta.
Fastener Product Cold Heading Process Formulation and Precision Die Design
Authors: Zhao Zhanfeng , Cao Yan
Published: May 2022

The stamping and forming process of the flat-head cross stainless-steel bolt was formulated and finite element simulation analysis was carried out, and the forming pressure required for the forming of cold heading stainless steel fasteners was obtained. On the basis of the results of the finite element analysis, two-dimensional and three-dimensional CAD aided design tools were used the double-station cold heading dies for screw punches are carried out. According to the two-dimensional general structure diagram, the overall structure of the die base is designed and determined, the design purpose of each part of the die is analyzed, and the elements such as the size and material of each part are determined. , Completed the design of the precision mold, the mold was successfully used in the enterprise, the production was good, and it created better benefits, providing a reference experience for the development of similar molds.