Texas Journal of Engineering and Technology
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Modernization of Relay Protection and Automation of Boston 110/35/10 KVL Power Supply, Supplying Pump Station with Power
Get PDFThis article discusses the problem of developing new protection schemes and the use of digital and microprocessor relays in relay protection systems in substations during the modernization of protective devices of power transformers in the substation 110/35/10 kV Buston, which supply power energy of pump station
Calculation of the Planer Tool with a Glance of Physical Components of the Cutting Process Acting on Limited Contact Areas
Get PDFThe article covers the designing of the planer tool considering the physical components of the cutting force acting on limited areas of chip contact and tool durabilit
Design and Analysis of High-Speed FSO for Supporting Fifth Generation under various weather scenarios
Get PDF5G is expected to change the mobile communications environment by boosting data throughput, improving energy efficiency, expanding coverage, and lowering latency. FSO is a high-capacity, efficient, and scalable 5G architecture for transmitting radio signals via optical communication, taking use of the massive bandwidth available. In this research design MDM over FSO in various weather scenarios. This paper investigated the performance of BER and Q-Factor over different distances of over FSO in various weather scenarios based MDM. This study has transmitted 30 Gbit/s based on three channels. Furthermore, the results demonstrated that 3x 10 Gbit/s MDM-FSO system (various weather scenarios) in an optical wireless communication system, it is useful at improving data qualit
Features of Mechanical Characteristics of Sand-Clay Mixtures in the Production of a Particularly Responsible Purpose Steel Castings
Get PDFThe formation of sand-clay mixtures (SCM) has become widespread at enterprises producing large-size casting. SCM is a mixture of quartz sand with astringent clay, water and process additives, which can take the form of the necessary configuration when pressed, shaken, inflated and other effects. After casting and solidification of castings, the mold is subject to destruction, its material is prepared for subsequent reuse. At the same time, it is necessary to introduce an additional portion of clay and process additives into the mixture instead of used ones, as well as remove part of the mixture. Researches of moulding sand-clay mixtures of various compositions are presented in this article. A comparative analysis aregiven. The effect of starch on the mechanical properties of the mixture has been researche
Problems and Solutions in the Use of Alternative Energy Sources in Uzbekistan
Get PDFAlternative energy sources are the generation of electricity using solar, wind, water or geothermal heat from the Earth. Today, the use of renewable energy sources is one of the most important issues in the world, including in Uzbekista
Current Trends in the Development of Computer and Information Technologies
Get PDFFrom the beginning of its inception to the present, IT has been the industry with the highest rate of development. This is reflected in the constant increase in quantitative and qualitative indicators of existing methods and tools, as well as in the emergence of fundamentally new concepts and techniques. What was considered an innovation yesterday is becoming obsolete today. Therefore, it is not advisable to talk about the numerical values of any characteristics in the IT field. However, it makes sense to analyze business needs and compare them with trends in the development of the IT industry as a whol
Intelligent FPGA Based Design and Implementation of Digital Systems
Get PDFFPGAs as a digital design based platforms, are usually candidates over DSP processors and many other digital hardware platforms for real time systems. FPGAs products for different companies have various number of available resources. So, the numbers of configurable logic blocks and input / output ports are varied for different versions. The wrong choice for the suitable FPGA plant for specific applications leads to do not have full utilities from the used FPGA processor, and may use only less than 10% from its resources that make the designer lose more than 90% of the processor utilities. In this paper, intelligent systems is built to determine the most suitable Xilinx processor depending on its available resources and other specific criteria, such as the operation speed of real time processing. The intelligent system can also choose the suitable partitioning algorithms and segmentation techniques for processing of specific applications with high data density. The suggested intelligent system built on an extended data base of different FPGA processors with comprehensive information about available resources of each version with detail information about frequency, processing speed and many other specific features of each processor. This intelligent system must include a wide experience of different digital technique and adapting algorithms as well as partitioning and segmentation criteria. Thus, an intelligent system that supported by this wide experiences and activities can provide a perfect decision to avoid any lose for processor components and utilities by efficiently determining the suitable FPGA processor for specific applications. As well as by choosing more efficient data processing technique. The suggested intelligent FPGA based system is built using Xilinx System Generator block sets, and Xilinx software of ISE 14.7 cooperated with MATLAB R2013b. The used Xilinx processors in this paper are Spartan, Artix, Kintex, and Virtex processor
Casting And Evaluation of Properties for an Aluminum Alloy Material and Optimizing the Quality Control Parameters
Get PDFThe rising cost of steel has had a substantial impact on manufacturing costs in the automobile and household industries, making a compelling case for replacing steel with materials that are lightweight and have a high strength-toweight ratio. Aluminum and its alloys have exceptional features such as light weight, wear durability, and corrosion resistance, making them ideal for a wide range of industrial applications. In today's industry, customer perception of quality is critical, especially with the increased competition. The engine industry is an illustration of how customer expectations in terms of quality and cost are rising across the world. Pistons must meet two important material specifications. One is deformation resistance, or strength when subjected to high combustion pressures and cyclic loads. This is necessary to execute at a high compression range without becoming fatigued, maintaining safe working conditions. Another necessity is high-temperature toughness. This is essential to work at high temperatures without creep in locations where there is a lot of flames. At high temperatures, an aluminum metal alloy containing reinforcing particles demonstrates excellent performance. The stir casting procedure was used to create base aluminum metal alloy matrix LM30+1 percent Graphene+0.8 percent Nickel, LM30+1.5 percent Graphene+0.8 percent Nickel, LM30+1 percent Flyash+0.8 percent Nickel, LM30+1.5 percent Flyash+0.8 percent Garnet. This paper compares the mechanical, chemical, and aluminum alloy of the LM series to meet specified quality control parameters, focusing on the results of impact strength, tensile strength, and hardness. Taguchi methods and other optimization approaches are used to discover the optimal sample that is suitable for use
Analysis of the Current State of Population Growth and Level of Vehicle Ownership
Get PDFAs a result of the growth and development of the world's population, the needs of each person are increasing more and more. For example, in the 1980s, the average need of a person was 80, by the 2000s, this indicator increased to 200, and by now it is more than 400. This indicates the development of humanity. Also, the level of automobileization is increasing year by year. These indicators, on the one hand, ease the problem of humanity, on the other hand, they cause great damage to the environment. This article analyzes population growth and carization rates over the year
Subject and Laws of Thermodynamics
Get PDFThis article contains information about the definition of thermodynamics, laws of thermodynamics, thermodynamic system, and thermodynamic balances. Each law of thermodynamics is discussed separatel