Advances in Science and Technology最新文献

{"title":"New Trends in Mechanical Engineering Technology","authors":"H. Huseynov","doi":"10.4028/p-xvvnq0","DOIUrl":"https://doi.org/10.4028/p-xvvnq0","url":null,"abstract":"The article analyzed modern trends in mechanical engineering technology, especially focused on methods of software control of the accuracy of machining processes through technological primitives, which was first introduced into technological science by the author of the article. For formation of accuracy operation programs was used by means of synthesis of technological primitives of the conformity table . The correlation was installed between automated draft of technological operations and conduct of their accuracy. In the given automated system except operating conditions of cutting calculation of elastic deformations of technological systems, forecasting cutting accuracy, construction of cutting surface topography and determination the programes of operating process accuracy.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"57 S8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy Efficiency as Driver of Sustainable Development","authors":"Gulnar Sydykova, Matanat Pashayeva, F. Mammadov, Zhasulan Makhsud","doi":"10.4028/p-d8wc1o","DOIUrl":"https://doi.org/10.4028/p-d8wc1o","url":null,"abstract":"Key directions of socio-economic development of resource-rich countries such as Azerbaijan and Kazakhstan necessitate enhancing level of energy efficiency and energy effectiveness as main drivers of sustainable development in the different sectors of national economies, given the need for sustainable development. With inclining trend of green energy transition in these countries as elsewhere, they have started to prioritize energy efficiency, as well as its development across sectors of national economies. The objective of this study is to demonstrate that energy efficiency is the key driver for development of economies as inefficient use of energy in all the sectors of the national economies impedes sustainable development and dynamic growth of national domestic product. The result of this study presents data reflecting actual structure of availability and use of energy resources, which allows to identify necessary resources for ensuring sustainable social and economic development. Among others, availability of effective decision making framework become important not only in terms of use of fuel and energy resources, but also in development of country specific approach and strategy for enabling and maintaining energy efficiency and energy effectiveness, and sustaining momentum as a whole.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"7 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern Methods of Purification of Heavy Metal Ions from Wastewater","authors":"Miryusif Mirbabayev, Gulnar Bahramova","doi":"10.4028/p-5lxybv","DOIUrl":"https://doi.org/10.4028/p-5lxybv","url":null,"abstract":"Purification of heavy metal ions from wastewater is of prime importance for a clean environment and human health. Different reported methods were devoted to heavy metal ions removal from various wastewater sources. These methods could be classified into adsorption-, membrane-, chemical-, electric-, and photocatalytic-based treatments. This article reviews and discusses these methods in terms of used agents/adsorbents, removal efficiency, operating conditions, and the pros and cons of each method. Generally, it was noticed that most of the recent studies have focused on adsorption techniques. Even though the chemical and membrane methods are practical, the large-volume sludge formation and post-treatment requirements are vital issues that need to be solved for chemical techniques. Fouling and scaling inhibition could lead to further improvement in membrane separation.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"69 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Ratio Regulation Gear Differential Closed by a Continuously Variable Transmission (CVT)","authors":"Firuz Mammadov, Samaya Baghirova","doi":"10.4028/p-v1xyom","DOIUrl":"https://doi.org/10.4028/p-v1xyom","url":null,"abstract":"Over the past two decades, numerous research efforts have been aimed at developing efficient transmissions, in particular automotive ones, which can significantly reduce energy consumption and improve the dynamic properties of the car. The driving performance of a vehicle is one of the most important qualities that ensures comfortable movement of the passenger, which also affects traffic safety. One way to achieve this goal is to use transmissions that provide continuously variable control. gear ratio. The Continuously Variable Transmission (CVT) provides continuous shifting, changing the ratio between the input and output shafts within the desired range, which consequently improves fuel economy and vehicle performance by better matching engine operating conditions to changing road conditions. This article discusses the possibility of using composite transmissions - gear differential mechanisms closed by (CVT). Various schemes of composite transmissions are given. The conditions under which the transmission ratio of the entire transmission must be changed by changing the transmission ratio (CVT) included in the combined transmission have been studied.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"49 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research of the Electromagnetical Part of Three-Phase Electromagnetic Vibrator of Low Frequency Vibrations","authors":"Huseyngulu Guliyev, Ramiz Huseynov, Ramil Yusifov","doi":"10.4028/p-oqwx7n","DOIUrl":"https://doi.org/10.4028/p-oqwx7n","url":null,"abstract":"It is known that the stable operation of existing three-phase low mechanical frequency electromagnetic type vibrating devices depends on keeping the specific frequencies of the electrical and mechanical systems at the same value or close to each other. In the work process, the specific frequency of the mechanical system is variable depending on the mass, while the specific frequency of the electrical system remains practically constant. This causes unstable operation of the electromechanical system of the vibration device. In order to overcome this deficiency, the article considers the issue of expanding the frequency interval of the amplitude-frequency characteristic of the electrical system.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"15 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140711897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Multi-Layer 316L-TiC Composite by Selective Laser Melting Additive Manufacturing","authors":"Sasan Yazdani, S. Tekeli, Elina Akbarzadeh-CH","doi":"10.4028/p-3oaz7a","DOIUrl":"https://doi.org/10.4028/p-3oaz7a","url":null,"abstract":"In this study, the microstructure and wear behavior of multilayer 316L stainless steel/TiC composite fabricated using selective laser melting (SLM) additive manufacturing were investigated. The produced samples consisted of three layers: 316L, 316L-5TiC, and 316L-10TiC (wt%). Microstructural evaluations revealed a homogeneous distribution of TiC particles in the matrix of the composite layers, with no cracks observed at the interfaces between layers, indicating a robust bond between the layers. Wear tests showed that the incorporation of TiC particles enhanced wear resistance, with the composite layer with 10 wt% TiC exhibiting the best wear resistance due to the hardness and reinforcing nature of TiC. Wear mechanisms included abrasive wear and fatigue wear due to fragmentation of TiC particles. The results suggest that SLM manufacturing can potentially be used to produce functionally graded composites for applications requiring high strength and wear resistance.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"6 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140712149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Analysis of Dynamic Characteristics of Spherical and Eccentric Transmissions with a Double-Ring Satellite","authors":"M. Lustenkov, Isa Khalilov, A. Moiseenko","doi":"10.4028/p-msjjs7","DOIUrl":"https://doi.org/10.4028/p-msjjs7","url":null,"abstract":"The article presents the design and discusses the operating principle of a planetary roller gear with a satellite performing spherical motion. A comparative analysis of gears of eccentric and spherical types with the same kinematic and comparable geometric parameters was carried out. The comparison criterion is kinetic energy. Dependencies were obtained to determine the kinetic energy for both types of gears on the gear ratio, angular velocity of the driving link and geometric parameters. It has been established theoretically and confirmed by the results of computer modeling that the use of a spherical gear instead of a flat one makes it possible to reduce the radial dimensions of the drive, reduce energy consumption (starting torques) by 3...5 times and dynamic pressures in the satellite supports by 1,8 times.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"2 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140712417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issues Practical Implementation of the Receiving System Infrared Space Telescopes and Testing it at Low Temperatures","authors":"Vaqif Maherramov","doi":"10.4028/p-w9qpp1","DOIUrl":"https://doi.org/10.4028/p-w9qpp1","url":null,"abstract":"To clarify the physical basis for creating an infrared telescope, an equation was obtained that describes the dispersion of the error in measuring the input flux against the background noise. For the first time, a three-beam spatial modulation method has been developed, which provides increased accuracy of infrared observations during astrophysical studies of space objects and a precision scanning device with compensation for inertia force, and it was found that when testing a scanning device made of Al-Cu-Mg D16T1 alloy, the cooling process of the stationary part of the device occurs slowly than the scanning part with an average temperature difference about 20°.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"46 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing the Energy Efficiency of Heat Exchanger Devices","authors":"Rufat Kalbaliyev, Lala Akhmedova-Azizova, Ulviyye Nasibova","doi":"10.4028/p-d2ysxh","DOIUrl":"https://doi.org/10.4028/p-d2ysxh","url":null,"abstract":"Studying the temperature regimes affecting the durability of the metal wall of heat exchanger pipes helps identify ways to enhance efficiency in heat exchange processes. One of the key factors determining the temperature regime of the pipe wall is the heat transfer. One of the main factors contributing to an increase in heat transfer is the intensification of heat exchange.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"24 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of the Ink Layer Thickness, Taking into Account the Surface Roughness of the Printing Forum","authors":"E. Aliyev, Shabnam Ismayilova","doi":"10.4028/p-0cw66o","DOIUrl":"https://doi.org/10.4028/p-0cw66o","url":null,"abstract":"In the article, the influence of the surface roughness of the printing plate on the thickness of the ink layer on the surfaces of the cylinders of the printing apparatus during ink transfer was studied. An analysis was made of the works devoted to the contact of the cylinders of the printing apparatus, as well as to the ink transfer and division of the ink layer. The influence of the surface roughness of the printing plate on the thickness of the ink layer, which ensures the quality of prints, has been established. A technique has been developed for determining the thickness of the ink layer, consisting of two stages, taking into account the roughness of the surface of the printing plate. At the first stage, the thickness of the ink layer on the printing plate after rolling, but before contact, was determined, and at the second stage, the thickness of the ink layer was determined on the offset blanket (deckle) after contact between the plate and offset cylinders. The thickness of the ink layer on the surfaces of the cylinders of the printing apparatus was estimated by the gravimetric-weight method. To estimate the amount of ink, the printing plate was weighed three times - before applying ink, after applying ink - before contact and after contact with the deckle. The difference in weights made it possible to have an idea of the mass of paint on the surfaces of the cylinders. On the basis of the experimental results obtained by the proposed method, the values of the thickness of the ink layers on the plate (on the form) and on the offset cylinders (on the deckle) were determined, taking into account the surface roughness of the printing plate. It has been established that at high roughness values, the amount of paint increases, which increases the thickness of the ink layer. The obtained results of the thickness of the ink layer on the deckle make it possible to determine the technologically necessary thickness of the ink layer on the print, which is the main factor for ensuring print quality. Taking into account the values of the surface roughness of the printing plate, it is possible to determine the technologically necessary pressure in the contact zone of the cylinders, which is an important factor for ensuring the technologically necessary thickness of the ink layer on the print. The results of the studies show that the data obtained are significantly different from the results of similar studies on the division of the ink layer between the cylinders of the printing apparatus and are more accurate, which is important for setting up the printing machine and ensuring the quality of prints.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"21 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140711614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}