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Готові списки джерел за темами / Unit load device / Статті в журналах

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Статті в журналах з теми "Unit load device"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Nečas, Jan, Tomáš Mlčák, Jiří Zegzulka, and Roman Hrbáč. "Optimization of Drive Unit through Load Measurement." Applied Mechanics and Materials 260-261 (December 2012): 494–98. http://dx.doi.org/10.4028/www.scientific.net/amm.260-261.494.

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The basis is a device that contains tension sensor. The output of tension sensor is associated with the input control unit. The tension sensor is connected between the two loads. The sensing signal is processed using a PC measuring card with special software. The resulting device will be part of trains. Data sensing by this device will be transmitted from the PC to the control unit.

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2

Slepenkov, Aleksandr, Sergey Kulinchenko, Sergey Shchitov, and Evgeniy Kuznetsov. "EXPANSION OF TECHNOLOGICAL CHARACTERISTICS OF THE HARROWING UNIT." Tekhnicheskiy servis mashin 1, no. 142 (2021): 83–88. http://dx.doi.org/10.22314/2618-8287-2020-59-1-83-88.

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Improving the quality of pre-sowing tillage is a priority direction. Harrowing with the use of heavy disc harrows is one of the operations of pre-sowing tillage. An important task when using heavy disc harrows is to ensure sufficient load on the working body. (Research purpose) The research purpose is in increasing the efficiency of the harrowing process by adjusting the coupling weight in the tractor-harrow link using special devices. (Materials and methods) It is important to match the necessary condition of balance between the load on the working body and the traction qualities of the tract

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3

Slepenkov, Aleksandr E., Sergey N. Kulinchenko, Sergey V. Shchitov, and Evgeniy E. Kuznetsov. "EXPANSION OF TECHNOLOGICAL CHARACTERISTICS OF THE HARROWING UNIT." Tekhnicheskiy servis mashin 1, no. 142 (2021): 83–88. http://dx.doi.org/10.22314/2618-8287-2021-59-1-83-88.

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Анотація:

Improving the quality of pre-sowing tillage is a priority direction. Harrowing with the use of heavy disc harrows is one of the operations of pre- sowing tillage. An important task when using heavy disc harrows is to ensure sufficient load on the working body. (Research purpose) The research purpose is in increasing the efficiency of the harrowing process by adjusting the coupling weight in the tractor–harrow link using special devices. (Materials and methods) It is important to match the necessary condition of balance between the load on the working body and the traction qualities of the trac

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4

Li, Chenchen, Shifu Liu, Hongduo Zhao, and Yu Tian. "Performance Assessment and Comparison of Two Piezoelectric Energy Harvesters Developed for Pavement Application: Case Study." Sustainability 14, no. 2 (2022): 863. http://dx.doi.org/10.3390/su14020863.

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To advance the development of piezoelectric energy harvesters, this study designed and manufactured bridge-unit-based and pile-unit-based piezoelectric devices. An indoor material testing system and accelerated pavement test equipment were used to test the electrical performance, mechanical performance, and electromechanical coupling performance of the devices. The results showed that the elastic modulus of the pile structure device was relatively higher than that of the bridge structure device. However, the elastic modulus of the two devices should be improved to avoid attenuation in the serv

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5

Chen, Chun Ying, and Paul Schonfeld. "Unit load device reassignment following temporary airport closures." International Journal of Shipping and Transport Logistics 15, no. 3/4 (2022): 239. http://dx.doi.org/10.1504/ijstl.2022.126925.

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6

Chen, Chun Ying, and Paul Schonfeld. "Unit load device reassignment following temporary airport closures." International Journal of Shipping and Transport Logistics 15, no. 3/4 (2022): 239. http://dx.doi.org/10.1504/ijstl.2022.10051950.

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7

Шемонаев, V. Shemonaev, Моторкина, et al. "The Control Unit Loads for the Preparation of the Teeth." Journal of New Medical Technologies 21, no. 3 (2014): 163–66. http://dx.doi.org/10.12737/5927.

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Work abrasive dental rotary tool is associated with tissue damage teeth. In case of non-observance of the thermal mode of preparation, it is possible the development traumatic pulpitis and violation of the local structure of hard tissues. To reduce unwanted consequences of preparation of teeth is mandatory, subject to such rules as the conduct of a stage of preparation of water-air cooling, the correct selection tool to perform certain tasks, the use of qualitative new tools, etc. One of the recommendations which aim to reduce the undesirable effects of preparation of hard tooth tissues, is to

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8

Li, Chenchen, Fan Yang, Pengfei Liu, et al. "Development and Piezoelectric Properties of a Stack Units-Based Piezoelectric Device for Roadway Application." Sensors 21, no. 22 (2021): 7708. http://dx.doi.org/10.3390/s21227708.

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To improve the energy harvesting efficiency of the piezoelectric device, a stack units-based structure was developed and verified. Factors such as stress distribution, load resistance, loads, and loading times influencing the piezoelectric properties were investigated using theoretical analysis and experimental tests. The results show that the unit number has a negative relationship with the generated energy and the stress distribution has no influence on the power generation of the piezoelectric unit array. However, with a small stress difference, units in a parallel connection can obtain hig

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9

Hua, Liang, Jiaen Qi, Wei Huang, Sijiang Zhang, Feng Gao, and Shengjiang Peng. "An improved simulated load test system." Journal of Physics: Conference Series 2093, no. 1 (2021): 012019. http://dx.doi.org/10.1088/1742-6596/2093/1/012019.

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Abstract A miniaturized analog load-checking relay protection test device is developed in this paper, in which a high-precision wireless phase volt-ampere test device is configured. This device, characterized by intelligence and ease of operation, realizes the detection of the transformation ratio, polarity, phase, etc. of the secondary wiring of the transformer in the smart substation merging unit and the conventional substation. It meets the testing requirements of smart substations, and can test bus differential protection, line protection, and various protections such as main transformer d

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10

Chen, Mei. "Weigh-in-Motion Device Based on Capacitive Weighing Sensor." Applied Mechanics and Materials 182-183 (June 2012): 357–60. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.357.

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A weigh-in-motion device is developed to solve defects in the current method. A vehicle carrying capacitive sensor is adopted as the load weighing component, and an embedded MCU is used as main control unit in this device. The device achieved real-time monitoring and displaying for static loads, transient loads and overloads of vehicle. An alarm is issued if vehicle is overloaded. The information of vehicle loads may be send to inspectors by wireless communication device. The test results show that the measurement error of this device is less than 10% and its precision is better than one class

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11

Dou, Xin Xu, John Andrews, Milan Simic, Reza Hoseinnezhad, and John Mo. "Optimal Power Management of Final Load and Electrolyser in a Solar Hydrogen Power Generation System." Applied Mechanics and Materials 511-512 (February 2014): 661–68. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.661.

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This paper describes a control unit for a solar-hydrogen power generation system that is capable of supplying an electrical load simultaneously with diverting excess power to an electrolyser to produce hydrogen gas for storage as backup energy. The functional requirements of such a control unit are defined. The transient response time for the PEM electrolyser is studied and analyzed through experimental testing. A design of load splitting device that also performs maximum power point tracking is proposed and its performance measured experimentally. Initial results suggest that the device can a

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12

Patino, Diego Alejandro, and Andres Eduardo Nieto Vallejo. "Scale Prototype Ring Main Unit for the Measurement and Control of Nodes in a Smart Grid." Revista Politécnica 14, no. 26 (2018): 113–24. http://dx.doi.org/10.33571/rpolitec.v14n26a10.

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Smart grids are playing a key role in modern electric power grids, improving load control, assuring safer operations and collecting valuable information of the electrical conditions of the grid. In a smart grid, a RTU (Remote Terminal Unit) is a device that is able to measure the electric variables of the grid and sends all the information to a MTU (Master Terminal Unit), which is responsible of controlling the operations of the grid. RMU (Ring Main Unit) devices are used in electric power grids to protect loads and to disconnect them in case of failure to prevent damage. This article presents

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13

Tang, Ching-Hui, and Chen-Yi Yen. "Airline unit load device dispatching considering service level and violation days." Journal of Air Transport Management 79 (August 2019): 101685. http://dx.doi.org/10.1016/j.jairtraman.2019.101685.

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14

Zhao, Chi, Yuqiang Jiang, and Chi Ma. "Research on Dynamic Characteristics of the Unit Cableway of the Overhead Passenger Device." Journal of Physics: Conference Series 2660, no. 1 (2023): 012047. http://dx.doi.org/10.1088/1742-6596/2660/1/012047.

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Abstract As an important auxiliary equipment for personnel transportation, overhead passenger device is widely used in coal mine production activities, and safety accidents caused by abnormal operating state are also common. As the basis of intelligent monitoring, it is urgent to study its dynamic characteristics. Based on the Euler beam model theory, the unit cableway system of the overhead passenger device is simplified as a vibration system model of the moving concentrated load load-bearing steel wire rope when the suspension chair is moving. The vibration response equation of the unit cabl

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15

Abeuov, Renat, and Elizaveta Saptsyna. "Device algorithm for minimizing electricity losses and current loading of the power system." Energy Systems 7, no. 4 (2022): 30–37. http://dx.doi.org/10.34031/es.2022.4.003.

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Now there is a continuous increase in loads in electric networks that are undergoing aging of electric grid equipment. These factors lead to a large increase in electricity losses in electrical networks, as well as to a decrease in the current-carrying capacity of electrical network elements. Therefore, the issue of the need to minimize the loss of electrical energy, as well as reduce the current load of network elements, in order to increase its throughput, is becoming more and more acute. One of the most effective ways to reduce power losses and reduce the current load of power grid elements

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16

Yang, Hu Kun, Yu Lu, Xiang Ru Zhao, and Jian Ping Wang. "Pumping Unit Suspension Point Direction Balance Theory Analysis Method and Effect Evaluation." Applied Mechanics and Materials 635-637 (September 2014): 303–6. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.303.

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In order to reduce the adverse effect of suspension point dynamic load on pumping unit system, according to the suspension point balance principle of conventional type pumping unit, the suspension point direction balance designing scheme is determined. Take CYJ10-3-37HB pumping unit as research object. Establish the virtual prototype simulation analysis model of conventional pumping unit by suspension point direction balance before and after the balance. Through the contrastive analysis of simulation results, the effect of load reduction and energy saving after the pumping unit by suspension p

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17

Liang, Jie. "Design and Testing of Shock Transmission Device for Bridge Protection." Applied Mechanics and Materials 405-408 (September 2013): 1517–20. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.1517.

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The design of the shock transmission unit (STU) was based on the maximum displacement, nominal load, lock up velocity and other parameters. The STU was subjected to a series of tests for checking its behavior. During the slow movement test, the resistance force is 10kN; during the simulated dynamic test, the deflection between the point of zero load and the point of maximum load is 4mm, and the deflection during the sustained load portion of the test is 5mm; during the fast movement test, the STU locked up within 1mm, the deflection from the point of lock-up to the maximum test load is 5mm, an

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18

Nehasil, Ondřej, and Daniel Adamovský. "Utilization of Indirect Adiabatic Cooling in Heat Recovery Device." Advanced Materials Research 649 (January 2013): 307–10. http://dx.doi.org/10.4028/www.scientific.net/amr.649.307.

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Decreasing heat load of buildings and their cooling is a major problem affecting the quality of both inner environment and air-conditioning system's energy demands. One of the alternatives using regular components of a standard air-conditioning unit is indirect adiabatic cooling. By means of a customized calculation procedure, this article demonstrates performance possibilities, energy savings and the economic benefits of indirect adiabatic cooling connected with a heat recovery heat exchanger on two air-conditioning unit alternatives.

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19

Balandina, Olga A. "Determination of the design features of the device for neutralizing toxic components of flue gases." Urban construction and architecture 13, no. 4 (2024): 64–68. http://dx.doi.org/10.17673/vestnik.2023.04.08.

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The influence of the boiler unit load on the area of heterogeneous reactions of the process of catalytic flue gas purification is considered. The optimal geometric characteristics of the neutralizer monolith were determined when the steam capacity of the TGME-464 boiler unit varied from 220 to 500 t/h. The calculations were performed using a mathematical model for the conditions of the operating power equipment. The optimal size of the unit cell of the catalyst block is determined in a wide range of boiler load regulation. The data obtained as a result of the study formed the basis for designi

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20

Andi, Heri. "Remote Terminal Unit Alternatif." ENERGI & KELISTRIKAN 14, no. 1 (2022): 45–51. http://dx.doi.org/10.33322/energi.v14i1.1545.

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Load Breaking Switch (LBS) is an asset that has an important role in the distribution system with the role of disconnecting and connecting the flow of electrical power from a 20 kV distribution system, LBS can also be used as a section when adding or reducing feeder loads and is often used as a maneuvering point between Feeder. To optimize the function and operation of the Motorized LBS, it is necessary to integrate the SCADA system so that it can be operated remotely. In this integration process, one of the important components needed is the Remote Terminal Unit (RTU) which functions as a dev

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21

Borakhade, Swapnil R., and U. Anjali. "Necessity of DC Voltage Storage for Dynamic Voltage Restorer." Asian Journal of Electrical Sciences 1, no. 1 (2012): 17–22. http://dx.doi.org/10.51983/ajes-2012.1.1.1654.

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Problems of voltage sags and swells and its severe impact on sensitive load is well known. To solve the problems custom power devices are used, one of those devices is DVR which is most efficient and effective modern custom power device used in power distribution network. DVR is a very effective series-compensation device for mitigating voltage sags. The mitigation capability of these devices is mainly limited by the energy storage capacity. This paper presents the application of DVR on power distribution systems for mitigation of voltage sag and swell. An adequate modeling and simulation of D

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22

Chavarría-Fernández, Victor, Daniel Rojas-Valverde, Randall Gutiérrez-Vargas, Carlos Meza, and Miguel Méndez-Solano. "Wearable Sports Technology Development in Costa Rica: Inertial Measurement Unit Integration for Real-Time External Load Monitoring." MHSalud: Revista en Ciencias del Movimiento Humano y Salud 20, no. 1 (2023): 1–13. http://dx.doi.org/10.15359/mhs.20-1.1.

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The increasing trend and projection for the use of wearable sensors technology in the general population have led to the development of different inertial measurement units (IMU) to monitor activity and motion variables during exercise or sports. This study aims to systematize the practical experience of developing an inertial measurement device to quantify external load in real time for runners. This article shows the installed capacity of Costa Rican higher education institutions to integrate existing sensors available in the international market in a single device to program it and use it f

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23

Zaitsev, Roman, Mykhailo Kirichenko, Kseniia Minakova, Viktor Nikitin, Bohdan Vorobiev, and Mykola Kharchenko. "Control and cooling of electronic load based on FET-transistor." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (4) (July 2, 2022): 28–34. http://dx.doi.org/10.20998/2224-0349.2022.01.01.

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The introduction of electronic load for testing high-precision low-voltage sources (solar panels) requires careful review not only of the circuit design, but also thermal and mechanical design. Modern advances in the development of solar cells and other low-voltage energy sources have led to the need to create compact and express systems for testing them, which cannot be implemented on existing solutions. The article considers the principle of creating and calculating the optimal solution for the implementation of electronic load. To achieve this goal, methods of analysis of modern electronic

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24

Rónai, László. "Design of a Force Measuring Unit for Robotic Applications." Design of Machines and Structures 12, no. 2 (2022): 96–102. http://dx.doi.org/10.32972/dms.2022.018.

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The paper deals with design process of a force measuring unit, which is capable to mount onto a robot or to integrate into a measuring device. The main element is a beam type load cell equipped with strain gauges in Wheatstone bridge configuration. In order to measure the force only in one direction a linear guide rail is used to lock the degrees of freedom. The unit will have a microcontroller board to process and transfer the data to a personal computer. Furthermore, the system will be capable to intervene processes thanks to the digital inputs and outputs of the electric board. The paper in

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25

Singh, Shweta, Sunil Kumar Jakhar, G. Ezhilarasan, and Kuldeep Singh Kulhar. "Novel Control Technique for Power Quality Improvement in PV - Wind Operated Hybrid Standalone System with TSK Fuzzy Controllers." E3S Web of Conferences 540 (2024): 01004. http://dx.doi.org/10.1051/e3sconf/202454001004.

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Power generation and supplying to electric loads through hybrid renewable energy sources is one of the best choices to reduce global warming as well as fulfill the needs of electric loads in many rural places. Hence establishing standalone hybrid power supply systems are becoming increasing day by day. However, due to atmospheric changes, a storage device (i.e., battery bank unit (BBU)) along with proper energy management system must be integrated into standalone system to manage power balance between load and generation. Photovoltaic-wind-battery powered standalone power supply system is cons

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26

Hajivar, G. A. M. Hosaini, and S. S. Mortazavi. "Impact of Shunt FACTS Devices on Security Constrained Unit Commitment." International Journal of Applied Power Engineering (IJAPE) 5, no. 1 (2016): 22. http://dx.doi.org/10.11591/ijape.v5.i1.pp22-39.

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Shunt FACTS Devices (SFD) would play an important role in maintaining security and reduce total generation cost in the economical operation of power systems. The application of this device to the AC model of securityconstrained unit commitment (SCUC) for the day ahead scheduling is presented in this paper. The proposed AC model of SCUC with SFD would include active and reactive power flow constraints which increase the network controllability at normal operation and contingency. A general SFD model is introduced for the reactive power management in SCUC which is based on the reactive power inj

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27

Mikheev, Sergey A. "System for maintaining effective axial load on the bit when drilling wells." Vestnik of Samara State Technical University. Technical Sciences Series 29, no. 4 (2021): 32–43. http://dx.doi.org/10.14498/tech.2021.4.3.

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The destruction of rock at the bottom by mechanical means is impossible without creating an axial load on the chisel. The efficiency of the entire process depends on the correct choice of the value and control of this parameter. Control of the axial load on the rock-breaking tool is one of the main methods of controlling the process of rock destruction in any drilling method. In this regard, a device for automating the search for an effective axial load on the bit is proposed, which allows reducing the time to find the optimal values. The operation of the device is based on the method of a bra

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28

Nikolaev, V. A. "Stability of bucket movement and directionof movement of the continuous unit to form the underlying layer of the road." Russian Automobile and Highway Industry Journal 18, no. 4 (2021): 364–76. http://dx.doi.org/10.26518/2071-7296-2021-18-4-364-376.

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Introduction. The unit of continuous action for the formation of the underlying layer is designed to increase labor productivity in the construction of roads and other objects, for the construction of which it is necessary to remove the upper layer of soil. The working bodies of the unit are buckets that cut and transport soil. To balance these forces and moments in the transverse-vertical plane, relative to the direction of movement of the buckets, support bars with support hydraulic cylinders are used. To create and regulate the pressure in the support hydraulic cylinders, two hydraulic pneu

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29

Pino-Ortega, Jose, Alejandro Hernández-Belmonte, Alejandro Bastida-Castillo, Carlos Gómez-Carmona, and Daniel Rojas-Valverde. "Accuracy and Reliability of Inertial Devices for Load Assessment During Flywheel Workout." MHSalud: Revista en Ciencias del Movimiento Humano y Salud 19, no. 1 (2021): 1–11. http://dx.doi.org/10.15359/mhs.19-1.1.

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There is currently an increase in inertial flywheel application in strength training; thus, it must be monitored by an accurate and reliable device. The present study tested: (1) the accuracy of an inertial measurement device (IMU) to correctly measure angular velocity and (2) its inter-unit reliability for the measurement of external load. The analysis was performed using Pearson Correlation and Intraclass Correlation Coefficient (ICC). The IMU accuracy was tested using Bland-Altman and the reliability with the coefficient of variation (CV). Ten elite-level football players performed ten seri

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30

Soomro, Abdul Hameed, Syed Abid Ali Shah, AssadUllah Khauhwar, et al. "Simulation based Analysis of Single Unit and Parallel Connected Three Phase AC Generator in QUEST Campus Larkana." Sukkur IBA Journal of Emerging Technologies 5, no. 2 (2023): 33–41. http://dx.doi.org/10.30537/sjet.v5i2.1191.

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Recently power crises are increasing day by day in Pakistan due to shortage of energy resources. The financial position of Pakistan is too weak and not in position to install new power projects for the production of electrical power to meet the demand as per requirement. So every consumer is trying to install the power producing devices to meet the demand inorder to run their institutional laboratories, offices, commercial plants and industrial machines. The generator is also one of the power producer device to meet the consumers demand to supply the electrical power to the load in absence of

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31

Khaliullin, Farit, Sergey Yakhin, Ayrat Imameev, Ilnar Gayaziev, Olga Makarova, and Gennady Pikmullin. "Tractor linkage loads with adjustable characteristics." E3S Web of Conferences 515 (2024): 04023. http://dx.doi.org/10.1051/e3sconf/202451504023.

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Efficient use of agricultural tractors is largely determined by the operating modes of its power units. Taking into account the variable nature of external loads, it is necessary to provide structural devices in the tractor, which smooth out changes in hook load, thus reducing the negative impact of external conditions on the operation of its power plant. The present paper is devoted to the design of a tractor attachment with variable characteristics. The methods of studying the variable traction force are analyzed on the output parameters of the technological process, as well as on the power

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32

SEMENOV, Andriy, Maksym ANDREIENKOV, Anton KHLOBA, Mykhailo SHURKHAL, and Vladyslav OLKHOVYCH. "DEVELOPMENT OF A 150 W LINEAR LABORATORY POWER SUPPLY UNIT." MEASURING AND COMPUTING DEVICES IN TECHNOLOGICAL PROCESSES, no. 1 (March 28, 2024): 166–75. http://dx.doi.org/10.31891/2219-9365-2024-77-21.

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The laboratory power supply is an indispensable device for the manufacture, testing, adjustment and repair of electronic equipment. The object of research is the process of selecting and justifying the device circuit on a modern element base, developing a printed circuit board, manufacturing and testing the created device layout in practice. The toroidal transformer of the required power was also calculated. The test was carried out in the voltage and current stabilization mode, and the data obtained indicate the possibility of further improvement of the device's circuitry. To build a laborato

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33

Liu, Jing, Hongzhong Ma, Qiang Zhang, Lijun Zhang, and Baoping Cai. "Design and Optimization of a Magnetic Levitation Load Reduction Device for a Hydropower Unit." IEEE Access 9 (2021): 32019–29. http://dx.doi.org/10.1109/access.2021.3060544.

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34

Meshcheryakov, Viktor, Tatyana Sinyukova, Alexey Sinyukov, and Oleg Vladimirov. "Analysis of the effectiveness of using the block for limiting the vibrations of the load on the mechanism of movement of the bogie with various control systems." E3S Web of Conferences 220 (2020): 01059. http://dx.doi.org/10.1051/e3sconf/202022001059.

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Damping load vibrations in an electric crane drive is an urgent topic for research. The swinging load has a negative effect on the mechanical part of the device, leading to its wear, and on the entire control system as a whole. To combat the swaying of the load, it is proposed to install a vibration damping block created on the basis of an equation describing the dependence of the change in the deviation of the load on the equilibrium position in the plane of movement of the cart. The control signals in the vibration damping unit are the parameters of truck acceleration, suspension length, and

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Ngoat, Tran Thi, Xiao Ming Zha, and Le Ngoc Giang. "Selecting Optimal Reactive Compensation Device for Power System." Applied Mechanics and Materials 556-562 (May 2014): 1560–63. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1560.

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Although there are many studies on application of FACTS unit, especially application of reactive power generating unit for power system to enhance voltage stability amplitude and transient stability as considered, the evaluation and selection of suitable power generating unit (STATCOM or SVC) as well as optimal compensation size in the analysis of steady and transient state is not paid attention to. This article studies the above described issues to give a solution to install reasonable reactive power generating source (kind of Var source, location, size) for the power system. The analysis wil

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Nath, Vivek. "OPTIMAL LOAD FREQUENCY CONTROL OF INTERLINKED NONLINEAR POWER SYSTEM INTEGRATED WITH SMES-TCSC AND HVDC." ASEAN Engineering Journal 14, no. 3 (2024): 123–36. http://dx.doi.org/10.11113/aej.v14.21323.

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In this article Multi-Area Multi-Source Interconnected Power System (MAMS-IPS) incorporated with an Automatic Voltage Regulator (AVR) in both the areas is considered for Load Frequency Control (LFC) study. Nonlinearity such as Governor Rate Constraints (GRC), Governor Dead Band (GDB), and Boiler are introduced with the thermal reheat generating unit. The effect of energy storage device (SMES) and fact device (TCSC) on the dynamic responses of IPS is also tested. PD-PID controller is suggested along with PID/PI-PD controller for minimizing the Automatic Control Error (ACE). The parameters of th

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S., Visweswara Rao, Rajashekar K., Sandeep M., and Dharmendar Kumar R. "Variable Refrigerant Flow System." International Journal of Trend in Scientific Research and Development 4, no. 1 (2019): 446–50. https://doi.org/10.5281/zenodo.3605908.

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The heating, ventilation, and air conditioning HVAC system is arguably the foremost advanced system put in in an exceedingly building and is liable for a considerable part of the entire building energy use. Variable refrigerant flow is varied exploitation either and discoverer controlled variable speed mechanical device , or multiple mechanical device of varied capability in response to changes within the cooling heating needed within the air conditioned space. The variable refrigerant Flow VRF air conditioning system as a high degree of intellectual control, with every indoor unit being able

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Urazakov, Kamil, Veronika Molchanova, and Pavel Tugunov. "Method for calculating dynamic loads and energy consumption of a sucker rod installation with an automatic balancing system." Journal of Mining Institute 246 (January 23, 2021): 640–49. http://dx.doi.org/10.31897/pmi.2020.6.6.

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The efficiency of sucker rod pump installations, which have become widespread in mechanized lift practice, is largely determined by the balance of the drive. During the operation of sucker rod installations, the balance of loads acting on the rod string and the drive can change significantly due to changes in the dynamic fluid level, which leads to a decrease in balance and an increase in loads on the pumping equipment units. The increase and decrease in the dynamic level in accordance with the pumping and accumulation cycle occurs in wells operating in the periodic pumping mode.  It is

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Yao, Jianjie, Xiangyou Lu, Yuanlai Xie, Qianxu Wang, and Xiao Liu. "A Liquid Nitrogen Cooling Circulation Unit: Its Design and a Performance Study." Machines 12, no. 4 (2024): 271. http://dx.doi.org/10.3390/machines12040271.

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A liquid nitrogen cooling circulating unit is a necessary condition for the stable operation of a cryogenic oscillator, which can provide a stable working environment for the oscillator. In this paper, according to the user’s functional requirements and performance parameters, a closed cooling system with supercooled liquid nitrogen as the medium was designed using SOLIDWORKS 2021 software, which can provide a suitable working environment for the cryogenic oscillator. Combined with the system heat load analysis, theoretical calculation for and the design of the coil heat exchanger, one of the

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Abrol, Monika, Megha Pandeya, Neeraj Sharma, and Kuldeep Singh Kulhar. "Improvement of Voltage Quality in a Distribution System by a Novel Simplified Unit Vector Theory." E3S Web of Conferences 540 (2024): 09009. http://dx.doi.org/10.1051/e3sconf/202454009009.

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Nowadays, electrical engineers are increasingly concerned about power quality due to the rising load demand and the utilization of non-linear loads by end users. Power must be supplied continuously and with excellent quality. Voltage variation is a prevalent occurrence in power distribution systems due to the presence of reactance in AC systems and fluctuations in load demand. The dynamic voltage restorer is a compensation device that effectively resolves voltage problems within power distribution systems. The theory of synchronous reference frame is utilized for controlling the DVR components

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Bosneaga, V., and V. Suslov. "Investigation of Symmetrical Modes of Operation and Calculation of the Installed Capacity of Phase-Shifting Transformer, Based on Hexagon Connection." Problemele energeticii regionale 4, no. 48 (2020): 11–22. https://doi.org/10.5281/zenodo.4316631.

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The scope of the work is to study the steady-state symmetrical load modes of operation of a new promising phase-regulating transformer circuit. This allows obtaining the value of the designed capacity of device. The device is based on a three-phase transformer windings connection into hexagon circuit, equipped with additional three phase regulating autotransformer, connected to hexagon circuit in a special manner. Besides, it should be equipped with semi-conductor switching keys, which give the possibility to control fast transition processes. The proposed circuit gives the possibility to roun

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Afanasyeva, Natalya Alexandrovna, Irina Anatolyevna Baeva, and Timofey Sergeevich Tarasovskiy. "Economic efficiency of contactless automatic voltage regulation by thyristor-reactor switching device in direct current traction power supply system." Transport of the Urals, no. 4 (2021): 107–13. http://dx.doi.org/10.20291/1815-9400-2021-4-107-113.

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The paper presents results of analysis of disadvantages of contactless automatic voltage regulation (CAVR) system with a reactor switching device (RSD) that is used on direct current electrified railways. It also shows direction of its improvement. The authors have considered a functional scheme of the closed CAVR system of a converter unit with a thyristor-reactor switching device (TRSD) and a TRSNP-12500/10 converter transformer. They have also carried out an engineering and economical comparison of two modes of traction power supply system (TPSS) operation: without application of voltage re

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Nurov, Homid Ibrokhimovich, Axrom Asror qizi Jumayev, Jovid Jahonovich Sirojev, and Behzod Boburovich Amrullaev. "DEVELOPMENT OF ENERGY SAVING METHODS WITH CONTROLLED ENERGY SAVING ELECTRIC POWER." EURASIAN JOURNAL OF ACADEMIC RESEARCH 1, no. 1 (2021): 344–47. https://doi.org/10.5281/zenodo.4717531.

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<em>Low load operation of asynchronous electric drives leads to underutilization of their installed power, unreasonable excess consumption of active and especially reactive power required by the motor, decrease in energy efficiency of the device and increase of electricity consumption per unit of output.</em>

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Hua, Wen, Bowen Wang, Xiang Zheng, Huangfu Yao, and Wei Dong. "Unit combination problem of counting and DC bipolar blocking and dynamic voltage stabilization under a new power system." Journal of Physics: Conference Series 2359, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2359/1/012008.

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Abstract With the construction of new power systems a large number of DC transmission technologies are applied, but the ensuing DC blocking problem brings new challenges for the combination of units in the intranet. Considering the unit combination problem of DC bipolar blocking and dynamic voltage stability occurring in the intranet under different load levels of high, medium and low is divided into two steps: selecting the unit combination that meets the load boundary under static constraints such as N-1 fault state constraint and network security under the occurrence of DC bipolar blocking;

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Samonov, Sergii, and Vitalii Dubovyk. "The use of a frequency converter for the activation of a stand-by diesel generator of a ship’s powerplant." Computational Problems of Electrical Engineering 9, no. 1 (2019): 27–32. http://dx.doi.org/10.23939/jcpee2019.01.027.

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The paper considers the ways of accelerating the activation of a ship's stand-by diesel generator by using advantages of a vector controlled frequency converter during the activation for obtaining additional power reserve in ship's automated electrical powerplants. The activation of the stand-by generator and putting it into operation can often be needed for startup of ship’s powerfull consumer, in the cases of failures in running equipment, accidents, in an emergency, or changes in navigation conditions, as well as while fixing the vessel location during the dynamic positioning. The main obst

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Zhao, Huiru, Chao Zhang, Yihang Zhao, and Xuejie Wang. "Low-Carbon Economic Dispatching of Multi-Energy Virtual Power Plant with Carbon Capture Unit Considering Uncertainty and Carbon Market." Energies 15, no. 19 (2022): 7225. http://dx.doi.org/10.3390/en15197225.

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Multi-energy virtual power plants (MEVPPs) effectively realize multi-energy coupling. Low-carbon transformation of coal-fired units at the source side and consideration of demand response resources at the load side are important ways to achieve carbon peak and carbon neutralization. Based on this, this paper proposes a low-carbon economic dispatch model for the MEVPP system considering source-load coordination with comprehensive demand response. Combined with the characteristics of organic Rankine cycle (ORC) waste heat power generation and comprehensive demand response energy to increase the

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Ridho Armi Nabawi, Dhany Alvianto Wibaksono, Tri Bowo Indrato, and Triana Rahmawati. "Electrosurgery Unit Monopolar (Cutting and Coagulation)." Journal of Electronics, Electromedical Engineering, and Medical Informatics 1, no. 1 (2019): 33–38. http://dx.doi.org/10.35882/jeeemi.v1i1.7.

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Electrosurgery Unit is a medical device that utilizes high frequency and voltage used to cut and dry tissue during the surgical process. The purpose of making this tool is to damage certain body tissues by heating the tissue. Heat is obtained by concentrating high frequency electricity on certain body tissues using active and passive electrodes as a medium. The Electrosurgery Unit involves the use of the CMOS 4069 IC as a frequency generator. The output frequency is set at 300 KHz then forwarded to the pulse regulating circuit and controlled with ic atmega328 then forwarded to the inverter cir

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Щитов, С. В., З. Ф. Кривуца, Е. С. Поликутина, С. Н. Воякин та В. В. Леонов. "РЕЗУЛЬТАТЫ ИССЛЕДОВАНИЙ РАБОТЫ МОДЕРНИЗИРОВАННОЙ ТЯЖЁЛОЙ ДИСКОВОЙ БОРОНЫ ПРИ ПОДГОТОВКЕ ПОЧВЫ". VESTNIK RIAZANSKOGO GOSUDARSTVENNOGO AGROTEHNOLOGICHESKOGO UNIVERSITETA IM P A KOSTYCHEVA 17, № 1(65) (2025): 179–85. https://doi.org/10.36508/rsatu.2025.68.61.024.

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Проблема и цель. Невозможность подготовки почвы к посевным работам связана с поздними сроками уборки сои с наступлением заморозков. В связи с этим целесообразно данную технологическую операцию проводить одновременно с посевными работами при ограниченных сроках. Цель исследований – расширение функциональных возможностей бороновального машинно-тракторного агрегата (МТА) за счёт использования корректора-распределителя сцепного веса. Методология. Методы проводимых исследований основываются на анализе существующих способов повышения нагрузки на рабочие органы дисковых борон и ведущие движители энер

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Vinogradova, A. V., A. I. Psarev, A. V. Vinogradov, V. E. Bolshev, M. Jasinski, and R. R. Gibadullin. "Restoring normal network operation mode by automatically disabling network ATS." E3S Web of Conferences 178 (2020): 01072. http://dx.doi.org/10.1051/e3sconf/202017801072.

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Automatic sectionalizing and redundancy of power transmission lines is one of the conditions for network intellectualization and can significantly reduce the power supply interruption time for rural consumers. However, both sectionalizing and redundancy of power transmission lines in 0.4 kV electric networks are used extremely limitedly since there are no sufficiently effective methods and technical means for their implementation. This article presents a method to automatically deactivate the automatic load transfer switch when restoring the normal network operation mode. The paper considers t

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Lu, Hua-An, and Chien-Yi Chen. "A time–space network model for unit load device stock planning in international airline services." Journal of Air Transport Management 17, no. 2 (2011): 94–100. http://dx.doi.org/10.1016/j.jairtraman.2010.09.004.

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