Log in

Relevant bibliographies by topics / Phase comparison relay / Journal articles

To see the other types of publications on this topic, follow the link: Phase comparison relay.

Journal articles on the topic 'Phase comparison relay'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Phase comparison relay.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Taher, Menna, Mohamed Abaza, Mostafa Fedawy, and Moustafa Aly. "Relay Selection Schemes for FSO Communications over Turbulent Channels." Applied Sciences 9, no. 7 (2019): 1281. http://dx.doi.org/10.3390/app9071281.

Full text

Abstract:

Free Space Optics (FSO) Communication has attracted the attention of the researchers in the last decade due to its high data rate, security, and low cost. Relay-assisted techniques are used to divide the distance to shorter hops in order to mitigate the effects of turbulence, weather attenuation, pointing error, and geometric loss. Choosing an active relay per time slot has been proven to enhance the performance of the system and decrease the loading effect on the system when compared to all active relays. This paper investigates the best relay that can be selected according to the source to r

APA, Harvard, Vancouver, ISO, and other styles

2

Aftab, Muhmmad Waleed, Sajjad Hussain, Aftab Husain, Umar Ali Khan, and Hamza Kundi. "A Deep Reinforcement-Learning-Based Relay Selection for Underwater Sensors Network." Journal of Smart Internet of Things 1, no. 1 (2023): 5–13. http://dx.doi.org/10.2478/jsiot-2023-0001.

Full text

Abstract:

Abstract Due to their limited frequency range and fast fading channels, underwater sensor networks (USNs) are vulnerable to collisions of packets. In this paper, we propose a deep reinforcement learning-based relay selection scheme with shortest latency (DRL-SL) for USNs that enables to choose the relay based on the state that comprised of the bit error rate (BER) of the previous transmission, and the jamming power measured by the relay node. The DRL-SL-based relay selection scheme completed in two phases. In the first phase, a deep neural network based learning is performed and second phase i

APA, Harvard, Vancouver, ISO, and other styles

3

Qiu, Xiao, Blanca De la Fuente, Alberto Lorenzo, and Santiago Veiga. "Comparison of Starts and Turns between Individual and Relay Swimming Races." International Journal of Environmental Research and Public Health 18, no. 9 (2021): 4740. http://dx.doi.org/10.3390/ijerph18094740.

Full text

Abstract:

The present study investigated swimmers’ performances on the starting and turning segments between individual and relay races. A total number of 72 race performances of the same swimmers in both relay 4 × 100 m finals (freestyle, medley, and mixed freestyle) and individual 100 m finals or semi-finals (butterfly, breaststroke, and freestyle) from the LEN European Swimming Championships were compared with repeated measures MANOVA. Swimmers performed 5–7% faster starts in the relay than in the corresponding individual events, despite no differences in the flight phase and a lower performance (sho

APA, Harvard, Vancouver, ISO, and other styles

4

González-Cueto, José Antonio, Zaid García Sánchez, Gustavo Crespo Sánchez, Hernan Hernandez, Jorge Iván Silva Ortega, and Vicente Leonel Martínez Díaz. "A mho type phase comparator relay guideline using phase comparison technique for a power system." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (2021): 929. http://dx.doi.org/10.11591/ijece.v11i2.pp929-944.

Full text

Abstract:

This paper presents a mho distance relay simulation based on the phase comparison technique using a typical electrical power systems analysis software for two cases: when the operation state is close to the static voltage limit and during a dynamic perturbation in the system. The paper evaluates the impedance variations caused by complex voltage values, the mho polarization, and the comparator operating region into the complex plane. In addition, the paper found the information for the dynamic perturbations from the outputs considering a mid-term stability program. The simulation of the mho-ph

APA, Harvard, Vancouver, ISO, and other styles

5

José, Antonio González-Cueto Cruz, García Sánchez Zaid, Crespo Sánchez Gustavo, Hernández Herrera Hernán, Iván Silva-Ortega Jorge, and Leonel Martínez Díaz Vicente. "A mho type phase comparator relay guideline using phase comparison technique for a power system." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (2021): 929–44. https://doi.org/10.11591/ijece.v11i2.pp929-944.

Full text

Abstract:

This paper presents a mho distance relay simulation based on the phase comparison technique using a typical electrical power systems analysis software for two cases: when the operation state is close to the static voltage limit and during a dynamic perturbation in the system. The paper evaluates the impedance variations caused by complex voltage values, the mho polarization, and the comparator operating region into the complex plane. In addition, the paper found the information for the dynamic perturbations from the outputs considering a mid-term stability program. The simulation of the mho-ph

APA, Harvard, Vancouver, ISO, and other styles

6

Lopes, Pablo Rodrigues, and Rui Bertho Junior. "Development of a Low-Cost Relay Prototype for Real-Time Power Protection Functions." Learning and Nonlinear Models 21, no. 1 (2023): 90–109. http://dx.doi.org/10.21528/lnlm-vol21-no1-art7.

Full text

Abstract:

This paper presents a Raspberry Pi 3B+ based low-cost universal relay able to run power protection functions in real-time. The configurations necessary for this single-board computer to be able to provide real-time response are shown, as for latency tests to verify its response time. An experimental circuit was built to send three-phase fault signals from a Relay tester to the low-cost relay, in order to evaluate its response time to clear faults in comparison to a commercial relay. A neural networks algorithm was developed and executed in real-time by the proposed low-cost relay, which is abl

APA, Harvard, Vancouver, ISO, and other styles

7

Zubić, Siniša J., and Milenko B. Djurić. "A distance relay algorithm based on the phase comparison principle." Electric Power Systems Research 92 (November 2012): 20–28. http://dx.doi.org/10.1016/j.epsr.2012.05.017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Zhu, Yifan, Tao Zheng, Minghao Wang, Hongcheng Zhao, and Xingguo Wang. "An Improved Directional Relay Adapted to a Distribution Network with IIG Integration." Energies 12, no. 17 (2019): 3345. http://dx.doi.org/10.3390/en12173345.

Full text

Abstract:

The integration of distributed generation (DG) into a distribution network changes the network’s topology. Three-stage current protection for a radial distribution network cannot meet the requirements of relay protection for a distribution network with DG. A directional relay that is based on the positive sequence fault component (PSFC) can effectively identify faults in the positive and negative directions and can be used to solve the adaptability problem with three-stage current protection in a multi-source distribution network. However, DG and the traditional generators have different fault

APA, Harvard, Vancouver, ISO, and other styles

9

Mohammed, Ali Abdulwahhab, Li Yu, Manar Al-Kali, and Desheng Wang. "Analysis of Amplify-and-Forward Cooperative Networks with Nakagami-m fading Channels For MRC Diversity Combining." TELKOMNIKA Indonesian Journal of Electrical Engineering 16, no. 3 (2015): 546. http://dx.doi.org/10.11591/tijee.v16i3.1646.

Full text

Abstract:

In this paper we study the effect of diversity combining for Nakagami -m fading Channels in the amplify-and-forward cooperative networks.We derive the cumulative density function (CDF), probability density function (PDF) and moment generating function (MGF) for the multiple relay amplify-and-forward network with single half duplex channel maximal ratio combiner (MRC). In this network we investigate the cases of MRC at the destination, as well derive the exact Symbol Error Rate (SER) of M-ary phase-shift keying (M-PSK), and quadrature amplitude modulation (M-QAM) in Nakagami -m fading environme

APA, Harvard, Vancouver, ISO, and other styles

10

Kolesnikov, Evgeniy, Aleksandr Novozhilov, Dilara Rakhimberdinova, Aleksandr Kislov, and Timofey Novozhilov. "Mathematical Model of a Nonlinear Power Transformer for Needs of Relay Protection." Energies 17, no. 7 (2024): 1710. http://dx.doi.org/10.3390/en17071710.

Full text

Abstract:

In this work, a mathematical model of a three-phase nonlinear transformer is suggested. The model enables simulating the transformer operation with allowance for its nonlinearity and covers needs of the relay protection. Our model has been developed on the basis of a mathematical model with phase coordinates, where differential equations are composed by the Kirchhoff’s phase-voltage law. Based on this model, we first compose a mathematical model for simulating steady-state operation modes of a transformer, taking into account the asymmetry and nonlinearity of its ferromagnetic core. In this mo

APA, Harvard, Vancouver, ISO, and other styles

11

Smith, Gregory D., Charles L. Cox, S. Murray Sherman, and John Rinzel. "Fourier Analysis of Sinusoidally Driven Thalamocortical Relay Neurons and a Minimal Integrate-and-Fire-or-Burst Model." Journal of Neurophysiology 83, no. 1 (2000): 588–610. http://dx.doi.org/10.1152/jn.2000.83.1.588.

Full text

Abstract:

We performed intracellular recordings of relay neurons from the lateral geniculate nucleus of a cat thalamic slice preparation. We measured responses during both tonic and burst firing modes to sinusoidal current injection and performed Fourier analysis on these responses. For comparison, we constructed a minimal “integrate-and-fire-or-burst” (IFB) neuron model that reproduces salient features of the relay cell responses. The IFB model is constrained to quantitatively fit our Fourier analysis of experimental relay neuron responses, including: the temporal tuning of the response in both tonic a

APA, Harvard, Vancouver, ISO, and other styles

12

Shumikhin, Andrey Yu, Roman V. Kirillov, and Regina T. Khazieva. "COMPUTER SIMULATION OF OPERATION OF SUBSTATION RELAY PROTECTION IN MATLAB SIMULINK PACKAGE." Electrical and data processing facilities and systems 20, no. 3 (2024): 67–79. http://dx.doi.org/10.17122/1999-5458-2024-20-3-67-79.

Full text

Abstract:

Relevance Modern electric power systems require reliable and high-speed relay protection, which is necessary to prevent accidents and ensure stable operation of the power system. With the development of computer technology, it becomes possible to use modern software tools for modeling and analyzing the operation of relay protection. Matlab Simulink provides the necessary toolset that allows you to accurately simulate various types of relay protection and their interaction with other network components. Aim of research This article simulates the relay protection of a substation in order to furt

APA, Harvard, Vancouver, ISO, and other styles

13

Feoﬁlov, S. V., and A. V. Kozyr. "Stability of Periodic Motions and Synthesis of Relay Sampled Data Control Systems." Mekhatronika, Avtomatizatsiya, Upravlenie 20, no. 11 (2019): 655–62. http://dx.doi.org/10.17587/mau.20.655-662.

Full text

Abstract:

This article is devoted to research and design of relay systems with control of data sampling. It is shown that the time sample has a significant effect on the parameters of periodic oscillations. We propose an exact method for analyzing periodic modes in digital self-oscillatory control systems with a two-position relay element and a linear piecewise-linear part is proposed. The proposed approach extends the phase hodograph method to the class of systems operating in discrete time. Two approaches have been developed to assess the stability of periodic motions in such systems. In the first app

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Hao, Qi Yang, Xiaopeng Li, and Wenyue Zhou. "A Method of Discriminating Between Power Swings and Faults Based on Principal Component Analysis." Applied Sciences 15, no. 5 (2025): 2867. https://doi.org/10.3390/app15052867.

Full text

Abstract:

Distance protection is widely applied in AC transmission systems. It may operate incorrectly under power swings, so a power swing blocking unit (PSBU) is needed to work with the distance protection relay. Such a unit should not only block the protection relay in time when a power swing occurs, but also deblock the protection relay after detecting a fault during the power swing. In this paper, a method that satisfies these requirements is proposed. To discriminate between power swings and faults, the characteristics of three-phase voltage under a power swing and fault situation are used. Princi

APA, Harvard, Vancouver, ISO, and other styles

15

Sofwan, A., A. Multi, R. Soleman, Sugianto, and A. Kusuma Septian. "Leak Current Monitoring System On The Ground Cables Medium Voltage Transformer 150/20 kV." MATEC Web of Conferences 218 (2018): 01008. http://dx.doi.org/10.1051/matecconf/201821801008.

Full text

Abstract:

On January, 2017 there had been fault trip at PMT 150/20 kV transformer in Jatirangon substation. For fault detection, that rele differential phase T and REF 20 kV have worked to detect this fault. The resulted impact of this fault is Power outage in feeder a 1350 A, 35 MW and 5 Mvar. The cause of this fault is the occurrence of breakdown on ground cables 20kV T-phase-core 1. This results in a short circuit to the ground so that the differential protection relay and REF 20kV work because the relay detects a fault in the ptotection zone. The result of this research is the design of an early det

APA, Harvard, Vancouver, ISO, and other styles

16

Haddadi, Aboutaleb, Evangelos Farantatos, Ilhan Kocar, and Ulas Karaagac. "Impact of Inverter Based Resources on System Protection." Energies 14, no. 4 (2021): 1050. http://dx.doi.org/10.3390/en14041050.

Full text

Abstract:

Inverter-based resources (IBRs) exhibit different short-circuit characteristics compared to traditional synchronous generators (SGs). Hence, increased uptake of IBRs in the power system is expected to impact the performance of traditional protective relay schemes—set under the assumption of a SG-dominated power system. Protection engineers need to study these challenges and develop remedial solutions ensuring the effectiveness of system protection under higher levels of IBRs. To address this need, this paper studies the impact of IBRs on a variety of protective relay schemes including line dis

APA, Harvard, Vancouver, ISO, and other styles

17

S., SKRYPNYK, and KOLLAROV O. "Analysis of the mode of electrical network operation at single-phase accessories of voltage 6-35 kV." Journal of Electrical and power engineering 25, no. 2 (2021): 35–40. http://dx.doi.org/10.31474/2074-2630-2021-2-35-40.

Full text

Abstract:

In three-phase electrical networks during the operation of power supply systems, damage to electrical equipment and difficult modes of operation are possible. Damage associated with insulation failure, rupture of wires and cables of power lines, personnel errors when switching, lead to a short circuit between the phases or on the ground. At a short circuit in a closed circuit there is a big current, voltage drop on elements of the equipment increases that leads to the general decrease in voltage in all points of a network and disturbance of work of consumers. Complex modes of operation of elec

APA, Harvard, Vancouver, ISO, and other styles

18

Tseng, Kuo-Hsiung, Ching-Lin Huang, and Wei-Zhe Li. "Global Positioning System Application in Current Phase Comparison of Differential Protection Relay of Power Transmission Line." Electric Power Components and Systems 39, no. 15 (2011): 1621–31. http://dx.doi.org/10.1080/15325008.2011.608768.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Lin, Chia-Hung, Te-Tien Ku, Chung-Sheng Li, and Chao-Shun Chen. "Optimal Phase Balancing in Electricity Distribution Feeders Using Mixed-Integer Linear Programming." Sustainability 15, no. 5 (2023): 4473. http://dx.doi.org/10.3390/su15054473.

Full text

Abstract:

A mixed-integer linear programming (MILP) model that includes reductions in neutral current, feeder energy-loss cost, customer interruption cost, and labor cost is developed to derive the optimal phase-swapping strategy to enhance the phase balancing of distribution feeders. The neutral current of the distribution feeder is reduced by the phase-swapping strategy so that the tripping of the low-energy overcurrent relay can be prevented and customer-service interruption costs and the labor cost to execute the phase-swapping works can be justified by the energy-loss reduction obtained. The novelt

APA, Harvard, Vancouver, ISO, and other styles

20

Bhasker, Shailendra Kumar, and Manoj Tripathy. "PHASE ANGLE SHIFT AND SLOPE BASED RESTRAINT FOR INDIRECT SYMMETRICAL PHASE SHIFT TRANSFORMER PROTECTION." Journal of Engineering and Sustainable Development 28, no. 3 (2024): 316–32. http://dx.doi.org/10.31272/jeasd.28.3.2.

Full text

Abstract:

This study presents a method to limit the functioning of the differential relay during the different operating conditions of an Indirect Symmetrical Phase Shift Transformer (ISPST). The proposed method depends on two thresholds; phase angle shift (PAS) between two ends of an ISPST to discriminate internal faults and inrush conditions from normal, over-excitation, and external fault conditions and slope of differential current helps to discriminate the situation of internal fault from inrush. In the first step of the algorithm, the PAS-based threshold discriminates normal, over-excitation, and

APA, Harvard, Vancouver, ISO, and other styles

21

Markovskiy, Vadim Pavlovich, Dauren Dzhambulovich Issabekov, and Viktor Yuryevich Mel’Nikov. "Relay Protection Using Inductive Coils: A Resource-Saving Approach." Electricity 5, no. 4 (2024): 1049–67. https://doi.org/10.3390/electricity5040053.

Full text

Abstract:

This paper presents the development and principle of operation of resource-saving overcurrent protection, which is an alternative to traditional current protections. The experiments were used to study the electromagnetic field for the protection of electrical installations connected to the cells of complete switchgears, voltage 6–10 kV, without the use of conventional protections with metal-core current transformers. As is known, such current transformers (CTs) have significant weight and dimensional parameters and high price costs. The method of research is comparison of the developed protect

APA, Harvard, Vancouver, ISO, and other styles

22

Toader, Dumitru, Marian Greconici, Daniela Vesa, et al. "The Influence of the Characteristics of the Medium Voltage Network on the Single Line-to-Ground Fault Current in the Resistor Grounded Neutral Networks." Designs 5, no. 3 (2021): 53. http://dx.doi.org/10.3390/designs5030053.

Full text

Abstract:

One important problem in the operation of medium voltage networks is the detection of a single-line-to-ground fault in its incipient state, when the fault resistance values are very high. In a medium voltage (MV) distribution network with a neutral grounding resistor (NGR), one of the methods employed to discriminate a single line-to-ground fault is the use of an overcurrent relay with an operating characteristic adjusted according to the effective value of the current flowing through the limiting resistor. In case of a single line-to-ground fault with a high fault resistance value, the correc

APA, Harvard, Vancouver, ISO, and other styles

23

Ustinov, Denis A., and Abou Rashid Aysar. "Study of the protection algorithms in distributed generation systems." Proceedings of the Russian higher school Academy of sciences, no. 2 (June 28, 2023): 41–55. http://dx.doi.org/10.17212/1727-2769-2023-2-41-55.

Full text

Abstract:

Current trends in the development of power supply systems for industrial facilities when applying the principles of distributed generation consist in the implementation of power supply from several power sources of different types and characteristics (photovoltaic cells, wind power plants, microturbine plants, diesel power plants), the maximum approximation of power sources to electrical loads, the use of electricity storage. The availability of such installations near consumers reduces the quantitative energy consumption by reducing the technical losses of the ge¬nerated energy and reducing d

APA, Harvard, Vancouver, ISO, and other styles

24

Billeke, Pablo, Tomas Ossandon, Marcela Perrone-Bertolotti, et al. "Human Anterior Insula Encodes Performance Feedback and Relays Prediction Error to the Medial Prefrontal Cortex." Cerebral Cortex 30, no. 7 (2020): 4011–25. http://dx.doi.org/10.1093/cercor/bhaa017.

Full text

Abstract:

Abstract Adaptive behavior requires the comparison of outcome predictions with actual outcomes (e.g., performance feedback). This process of performance monitoring is computed by a distributed brain network comprising the medial prefrontal cortex (mPFC) and the anterior insular cortex (AIC). Despite being consistently co-activated during different tasks, the precise neuronal computations of each region and their interactions remain elusive. In order to assess the neural mechanism by which the AIC processes performance feedback, we recorded AIC electrophysiological activity in humans. We found

APA, Harvard, Vancouver, ISO, and other styles

25

Vikharev, D. Yu, E. A. Vorobyova, D. I. Gandzhaev, A. S. Lifshits, A. Yu Murzin, and N. A. Rodin. "Equivalence of sections of electric power systems based on operating parameters in equivalence nodes." Vestnik IGEU 1 (February 28, 2023): 25–30. http://dx.doi.org/10.17588/2072-2672.2023.1.025-030.

Full text

Abstract:

When modeling steady-state and transient operating modes in electric power systems, it is necessary to determine a section of the electrical network to simplify the processes occurring in the area not covered by equivalenting. In this case, it is necessary to identify equivalents and relationships with respect to the speci-fied section. The purpose of the research is to determine the parameters of the equivalent sections of power systems and their relationships with respect to the given nodes. Methods of mathematical modeling of the elements of power systems, methods of the theory of electric

APA, Harvard, Vancouver, ISO, and other styles

26

Zitouni, M. "Improvement of power transformer differential protection through detection and exploitation of the negative sequence currents." Electrical Engineering & Electromechanics, no. 1 (February 17, 2022): 12–20. http://dx.doi.org/10.20998/2074-272x.2022.1.02.

Full text

Abstract:

Introduction. Power transformers are the most important and the most expensive equipment used in transport and distribution of electrical energy. Their failure results in huge economic losses. Despite the great advances in the design of power equipment in recent years, the feeble link in the chain remains the insulation weakness of coil turns of the power transformer. The novelty of the proposed research consists in the development of a new procedure for diagnosing and localizing the occurrence of turn to turn short-circuits in the windings of three-phase power transformer. The main problems o

APA, Harvard, Vancouver, ISO, and other styles

27

Yao, Yuanyuan, Ke Lv, Sai Huang, Xuehua Li, and Wei Xiang. "UAV Trajectory and Energy Efficiency Optimization in RIS-Assisted Multi-User Air-to-Ground Communications Networks." Drones 7, no. 4 (2023): 272. http://dx.doi.org/10.3390/drones7040272.

Full text

Abstract:

An air-to-ground downlink communication network consisting of a reconfigurable intelligent surface (RIS) and unmanned aerial vehicle (UAV) is proposed. In conjunction with a resource allocation strategy, the system’s energy efficiency is improved. Specifically, the UAV equipped with a RIS starts from an initial location, and an energy-efficient unmanned aerial vehicle deployment (EEUD) algorithm is deployed to jointly optimize the UAV trajectory, RIS phase shifts, and BS transmit power, so as to obtain a quasi-optimal deployment location and hence improve the energy efficiency. First, the RIS

APA, Harvard, Vancouver, ISO, and other styles

28

M., Zitouni. "Improvement of power transformer differential protection through detection and exploitation of the negative sequence currents." Electrical Engineering & Electromechanics, no. 1 (February 17, 2022): 12–20. https://doi.org/10.20998/2074-272X.2022.1.02.

Full text

Abstract:

<strong><em>Introduction. </em></strong><em>Power transformers are the most important and the most expensive equipment used in transport and distribution of electrical energy. Their failure results in huge economic losses. Despite the great advances in the design of power equipment in recent years, the feeble link in the chain remains the insulation weakness of coil turns of the power transformer. <strong>The novelty </strong>of the proposed research consists in the development of a new procedure for diagnosing and localizing the occurrence of turn to turn short-circuits in the

APA, Harvard, Vancouver, ISO, and other styles

29

Zatsepina, V. I., E. P. Zatsepin, and P. I. Skomorokhov. "Improving the efficiency of power supply systems through the combined effect of voltage distortion." Power engineering: research, equipment, technology 21, no. 5 (2019): 79–86. http://dx.doi.org/10.30724/1998-9903-2019-21-5-79-86.

Full text

Abstract:

In most cases, any abnormal mode in the distribution electrical network is eliminated by the action of relay protection and automation devices (RPA), i.e. - there is a shutdown of the damaged item. It is much more difficult to constantly maintain the normal key indicators of the quality of electrical energy in the network. With the advent of controlled voltage converters based on transistors IGCT and IGBT, static synchronous compensators STATCOM were developed. The main disadvantage of this kind of device is that the control output generated by them is static. Under conditions of increased lik

APA, Harvard, Vancouver, ISO, and other styles

30

Rahmani, Amir Masoud, Rizwan Ali Naqvi, Efat Yousefpoor, et al. "A Q-Learning and Fuzzy Logic-Based Hierarchical Routing Scheme in the Intelligent Transportation System for Smart Cities." Mathematics 10, no. 22 (2022): 4192. http://dx.doi.org/10.3390/math10224192.

Full text

Abstract:

A vehicular ad hoc network (VANET) is the major element of the intelligent transportation system (ITS). The purpose of ITS is to increase road safety and manage the movement of vehicles. ITS is known as one of the main components of smart cities. As a result, there are critical challenges such as routing in these networks. Recently, many scholars have worked on this challenge in VANET. They have used machine learning techniques to learn the routing proceeding in the networks adaptively and independently. In this paper, a Q-learning and fuzzy logic-based hierarchical routing protocol (QFHR) is

APA, Harvard, Vancouver, ISO, and other styles

31

Alikperov, Khanlar D. "ASSOCIATION AS ONE OF THE PHASES OF COGNITIVE ACTIVITY CONSCIOUSNESS IN THE PROCESS OF GENERATING A NEW IDEA (REPRESENTATION OF ASSOCIATIVE THINKING ON THE EXAMPLE OF LAW)." RSUH/RGGU Bulletin. "Literary Theory. Linguistics. Cultural Studies" Series, no. 4 (2022): 355–64. http://dx.doi.org/10.28995/2686-7249-2022-4-355-364.

Full text

Abstract:

The generation of a new idea, developed at the stage of the associative phase of thinking, is carried out through a multi-stage activity of consciousness: the formulation of the problem (hereinafter abbreviated – “P”); insight into the essence of “P” (study, analysis, hypotheses, etc.); isolation from “P” unknown faces; development of an algorithm for finding a way to solve these faces; partial withdrawal from attempts solve “P” by traditional scientific methods; arbitrary transition of “P” with all the accumulated information about it to the subconscious layers of the psyche to search for its

APA, Harvard, Vancouver, ISO, and other styles

32

Gadalińska, Elżbieta, Andrzej Baczmański, Sebastian Wroński, et al. "Neutron Diffraction Study of Elastoplastic Behaviour of Al/SiCp Metal Matrix Composite." Materials Science Forum 905 (August 2017): 66–73. http://dx.doi.org/10.4028/www.scientific.net/msf.905.66.

Full text

Abstract:

The TOF neutron diffraction measurements were done for Al/SiCp metal–matrix composite (17% of SiC) subjected to T6 thermal treatment. Using three separated diffraction peaks of SiC phase and four peaks of Al phase, the lattice strains were measured for both phases independently during in situ tensile test. The experimental results were presented in comparison with elastoplastic model, which allows to find the values of parameters determining plastic deformation of Al matrix (critical resolved shear stress and hardening parameter). Additionally, the results of TOF method were compared with thos

APA, Harvard, Vancouver, ISO, and other styles

33

Kariyawasam, Sachintha, Jagannath Wijekoon, and Athula Rajapakse. "Assessment of the Performance of Phasor-Based and Transients-Based Faulted Phase Identification Techniques in the Presence of Inverter Interfaced Resources." Energies 16, no. 2 (2023): 640. http://dx.doi.org/10.3390/en16020640.

Full text

Abstract:

Faulted phase identification is one of the segments of conventional system protection that is severely vulnerable in the presence of inverter-based resources (IBR) such as Type IV wind and solar PV power plants. The work presented in this paper investigates the effect of IBRs on the conventional phasor-based faulted phase identification methods widely implemented in contemporary commercial protection relays using theoretical analysis and simulation results. Moreover, this premise is further validated by testing commercial line protection relays using hardware-in-the-loop simulations. This pape

APA, Harvard, Vancouver, ISO, and other styles

34

Ding, Jinfeng, Xiao-Yong Zhuge, Yuan Wang, and Anyuan Xiong. "Evaluation of Chinese Aircraft Meteorological Data Relay (AMDAR) Weather Reports." Journal of Atmospheric and Oceanic Technology 32, no. 5 (2015): 982–92. http://dx.doi.org/10.1175/jtech-d-14-00145.1.

Full text

Abstract:

AbstractAircraft Meteorological Data Relay (AMDAR) weather reports are a type of high spatiotemporal data currently widely used in weather monitoring and prediction. A recent Chinese AMDAR project began in 2003 has made rapid progress. However, the assessment and accuracy of these Chinese AMDAR reports have yet to be thoroughly discussed. A comparison of temperature and wind observations between Chinese AMDAR reports and rawinsonde data between 2004 and 2010 is conducted in this paper. Results demonstrate that the root-mean-square error (RMSE) between these two sets of data is 1.40°C for tempe

APA, Harvard, Vancouver, ISO, and other styles

35

El Ghali, Abdessalem, Claude Bobier, and Noureddine Ben Ayed. "Significance of the E-W fault system in the geodynamic evolution of the Tunisian Alpine Chain foreland. Example of the Sbiba-Cherichira fault system in Central Tunisia." Bulletin de la Société Géologique de France 174, no. 4 (2003): 373–81. http://dx.doi.org/10.2113/174.4.373.

Full text

Abstract:

Abstract The recent sedimentary basins in Central Tunisia correspond to a set of depocenters with complex geometry which are bounded by E-W, N070 and N-S brittle structures. These bordering faults, active during Eocene and Cretaceous times, have been rejuvenated at the end of the Neogene and during Quaternary in a relay pattern system associated with compressive and extensive deformations according to the alternance of extension and compression phases (Tortonian Atlasic Phase of compression, post tectonic top Miocene-early Pleistocene extension associated to the rifting of the Tyrrhenian Basin

APA, Harvard, Vancouver, ISO, and other styles

36

Azouri, Assaf, Volker Roeber, Martin David Guiles, et al. "WAVE-DRIVEN COASTAL DYNAMICS: CAN WE RELY ON PHASE-RESOLVING MODELS?" Coastal Engineering Proceedings, no. 36v (December 28, 2020): 45. http://dx.doi.org/10.9753/icce.v36v.waves.45.

Full text

Abstract:

Wave simulations from two Boussinesq-type models: BOSZ (Roeber & Cheung, 2012) and FUNWAVE (Shi et al., 2012), and a non-hydrostatic model: XBeach (Roelvink et al., 2009), are compared to observational data in a harbor and along the exposed coast of northwest O'ahu Island, Hawai'i, under highly energetic sea/swell forcing conditions. In the present comparison we attempt to address whether the models can (i) reproduce the observed spectra at different locations over a fringing reef and inside a harbor, and; (ii) draw a consistent 2-dimensional picture of the gravity and IG wave fields throu

APA, Harvard, Vancouver, ISO, and other styles

37

Kunas, Beatrix, Oliver Jung, Christoph Schranz, Mathias Schmoigl-Tonis, Manuela Ploessnig, and Anton-Rupert Laireiter. "Personalizing mHealth Interventions for Occupational Stress: Protocol for a Randomized Pilot Study." JMIR Research Protocols 14 (June 3, 2025): e68012. https://doi.org/10.2196/68012.

Full text

Abstract:

Background Occupational stress is associated with detrimental consequences that are addressed by mobile health (mHealth) solutions. Previous developments of apps for occupational stress have not yet fully exploited the potential of multilevel diagnostics through the integration of wearable sensors for interventions. Personalizing mHealth approaches in terms of intervention time and content, which requires the use of artificial intelligence, is the next logical developmental step. The "Relax" approach developed a corresponding prototype of an app-wearable system, which will be evaluated for eff

APA, Harvard, Vancouver, ISO, and other styles

38

Banerjee, Mudita, and Anita Khosla. "Mitigation of magnetising inrush current in three–phase power transformer." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 1 (2020): 39. http://dx.doi.org/10.11591/ijeecs.v20.i1.pp39-45.

Full text

Abstract:

<span>During energization of no – load transformers, a high and peaky current flow on the primary side which has rich second harmonics. This current is magnetising inrush current and it is generated when transformer core is driven deep into saturation. This current has various disturbances on transformer attribute; reduced life-span, major voltage drop, insulation weakening, electrical and mechanical vibrations in coils, difficulties in protecting relays and all leads to poor power quality of the electric system. This paper presents the analysis and comparison of recent techniques to red

APA, Harvard, Vancouver, ISO, and other styles

39

Mudita, Banerjee, and Khosla Anita. "Mitigation of magnetising inrush current in three-phase power transformer." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 1 (2020): 39–45. https://doi.org/10.11591/ijeecs.v20.i1.pp39-45.

Full text

Abstract:

During energization of no-load transformers, a high and peaky current flow on the primary side which has rich second harmonics. This current is magnetising inrush current and it is generated when transformer core is driven deep into saturation. This current has various disturbances on transformer attribute; reduced life-span, major voltage drop, insulation weakening, electrical and mechanical vibrations in coils, difficulties in protecting relays and all leads to poor power quality of the electric system. This paper presents the analysis and comparison of recent techniques to reduce the magnit

APA, Harvard, Vancouver, ISO, and other styles

40

Alexander, Krasovsky. "Simulation and analysis of improved direct torque control of switched reluctance machine." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 18, no. 1 (2020): 251–60. https://doi.org/10.11591/ijeecs.v18.i1.pp251-260.

Full text

Abstract:

Direct torque control of electric machines widely used in modern electric drives. Switched reluctance machines (SRM) are different from traditional electric machines, so we cannot apply well-known technical solutions to them. Simulation can provide a powerful approach for investigating the control of switched reluctance machines, and Matlab/Simulink allows it successfully implemented. This paper presents a description of the model and the simulation results of the proposed new algorithms for direct control of the instantaneous torque of SRM in the motor and braking modes. In comparison with th

APA, Harvard, Vancouver, ISO, and other styles

41

Jacques, Sébastien, Cédric Reymond, Jean-Charles Le Bunetel, and Ghafour Benabdelaziz. "Comparison of the power balance in a Totem-Pole Bridgeless PFC topology with several inrush current limiting strategies." Journal of Electrical Engineering 72, no. 1 (2021): 12–19. http://dx.doi.org/10.2478/jee-2021-0002.

Full text

Abstract:

Abstract Limiting inrush currents is usually necessary when AC-DC conversion is used to supply DC loads such as battery chargers in particular, it must comply with IEC 61000-3-3. This document discusses the suitability of an active inrush current limiter that can be used to replace traditional thermistors and NTC relays. This strategy is based on the control of the phase shift of thyristor type power components. It has been implemented in a totem-pole bridgeless power factor corrector (PFC). Experimental results show that this solution differs from traditional solutions to ensure high energy e

APA, Harvard, Vancouver, ISO, and other styles

42

Krasovsky, Alexander. "Simulation and analysis of improved direct torque control of switched reluctance machine." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 1 (2020): 251. http://dx.doi.org/10.11591/ijeecs.v18.i1.pp251-260.

Full text

Abstract:

<span>Direct torque control of electric machines widely used in modern electric drives. Switched reluctance machines (SRM) are different from traditional electric machines, so we cannot apply well-known technical solutions to them. Simulation can provide a powerful approach for investigating the control of switched reluctance machines, and Matlab / Simulink allows it successfully implemented. This paper presents a description of the model and the simulation results of the proposed new algorithms for direct control of the instantaneous torque of SRM in the motor and braking modes. In comp

APA, Harvard, Vancouver, ISO, and other styles

43

ALEXANDER, JAMES C., ANDREW J. BERNOFF, ELIZABETH K. MANN, J. ADIN MANN, JACOB R. WINTERSMITH, and LU ZOU. "Domain relaxation in Langmuir films." Journal of Fluid Mechanics 571 (January 4, 2007): 191–219. http://dx.doi.org/10.1017/s0022112006003326.

Full text

Abstract:

We report on theoretical studies of molecularly thin Langmuir films on the surface of a quiescent subfluid and qualitatively compare the results to both new and previous experiments. The film covers the entire fluid surface, but domains of different phases are observed. In the absence of external forcing, the compact domains tend to relax to circles, driven by a line tension at the phase boundaries. When stretched (by a transient applied stagnation-point flow or by stirring), a compact domain elongates, creating a bola consisting of two roughly circular reservoirs connected by a thin tether. T

APA, Harvard, Vancouver, ISO, and other styles

44

Abbas, Rachid, Caroline Rossoni, Thomas Jaki, Xavier Paoletti, and Pavel Mozgunov. "A comparison of phase I dose-finding designs in clinical trials with monotonicity assumption violation." Clinical Trials 17, no. 5 (2020): 522–34. http://dx.doi.org/10.1177/1740774520932130.

Full text

Abstract:

Background/Aims In oncology, new combined treatments make it difficult to order dose levels according to monotonically increasing toxicity. New flexible dose-finding designs that take into account uncertainty in dose levels ordering were compared with classical designs through simulations in the setting of the monotonicity assumption violation. We give recommendations for the choice of dose-finding design. Methods Motivated by a clinical trial for patients with high-risk neuroblastoma, we considered designs that require a monotonicity assumption, the Bayesian Continual Reassessment Method, the

APA, Harvard, Vancouver, ISO, and other styles

45

Liu, Kanghuai, Zhigang Chen, Jia Wu, Yutong Xiao, and Heng Zhang. "Predict and Forward: An Efficient Routing-Delivery Scheme Based on Node Profile in Opportunistic Networks." Future Internet 10, no. 8 (2018): 74. http://dx.doi.org/10.3390/fi10080074.

Full text

Abstract:

In the social scene of opportunistic networks, message applications find suitable relay nodes or certain transmission destinations from the surrounding neighbors through specific network addresses of users. However, at the dawn of big data and 5G networks, the variational location information of nodes is difficult to be available to mobile devices all the time, and a long wait for the destination may cause severe end-to-end delay. To improve the transmission environment, this study constructs an efficient routing-delivery scheme (Predict and Forward) based on node profile for the opportunistic

APA, Harvard, Vancouver, ISO, and other styles

46

Bukhari, Syed Basit Ali, Abdul Wadood, Tahir Khurshaid, Khawaja Khalid Mehmood, Sang Bong Rhee, and Ki-Chai Kim. "Empirical Wavelet Transform-Based Intelligent Protection Scheme for Microgrids." Energies 15, no. 21 (2022): 7995. http://dx.doi.org/10.3390/en15217995.

Full text

Abstract:

Recently, the concept of the microgrid (MG) has been developed to assist the penetration of large numbers of distributed energy resources (DERs) into distribution networks. However, the integration of DERs in the form of MGs disturbs the operating codes of traditional distribution networks. Consequently, traditional protection strategies cannot be applied to MG against short-circuit faults. This paper presents a novel intelligent protection strategy (NIPS) for MGs based on empirical wavelet transform (EWT) and long short-term memory (LSTM) networks. In the proposed NIPS, firstly, the three-pha

APA, Harvard, Vancouver, ISO, and other styles

47

Ruiz, L. M., J. Arévalo, J. Parada, et al. "Respirometric assays of two different MBR (microfiltration and ultrafiltration) to obtain kinetic and stoichiometric parameters." Water Science and Technology 63, no. 11 (2011): 2478–85. http://dx.doi.org/10.2166/wst.2011.578.

Full text

Abstract:

A comparison of two different medium scale MBRs (ultrafiltration and microfiltration) using respirometric methods has been achieved. The ultrafiltration membrane plant (0.034 µm pore size) maintained recirculation sludge flow at seven times the influent flow, and membranes were backwashed every 5 min and chemically cleaned weekly. The microfiltration membrane plant (0.4 µm pore size) maintained recirculation sludge flow at four times the influent flow, membrane-relax was applied after the production phase and membranes were chemically cleaned in the event of high trans-membrane pressure. Both

APA, Harvard, Vancouver, ISO, and other styles

48

Tarchi, Daniele, Arash Bozorgchenani, and Mulubrhan Desta Gebremeskel. "Zero-Energy Computation Offloading with Simultaneous Wireless Information and Power Transfer for Two-Hop 6G Fog Networks." Energies 15, no. 5 (2022): 1632. http://dx.doi.org/10.3390/en15051632.

Full text

Abstract:

Currently, we are faced with an ever-increasing number of devices and objects connected to the Internet aimed at creating the so-called Internet of Things framework, fostering the creation of a connected world of objects. One of the main challenges we are actually facing is constituted by the constrained sizes of such objects: reduced memory, reduced computational capacity, and reduced battery sizes. Particular attention should be devoted to energy efficiency, since a potential energy shortage would negatively impact not only its operation but also network-wide operation, considering the tight

APA, Harvard, Vancouver, ISO, and other styles

49

Xie, Wenqiang, Mingming Shi, Yuying He, Chenyu Zhang, and Ruihuang Liu. "Comparison of Configurable Modular Two-Level and Three-Level Isolated Bidirectional DC–DC Converters for Super-Capacitor Charging in DC Shore Power Systems." Energies 17, no. 18 (2024): 4630. http://dx.doi.org/10.3390/en17184630.

Full text

Abstract:

Compared to the AC counterpart, the DC shore power system provides a significant advantage of efficient power supply from renewable sources to ships and onshore loads. Super-capacitors serve as key energy storage units in such a system to buffer the power fluctuations and collect the regenerative energy. However, the ultra-wide voltage range of super-capacitors imposes a significant challenge in the topology selection and efficiency optimization of the interfacing isolated bidirectional DC–DC converter. To tackle this challenge, this paper analyzes and compares two promising converter topologi

APA, Harvard, Vancouver, ISO, and other styles

50

Chabolla, S. A., C. W. Machan, J. Yin, et al. "Bio-inspired CO2reduction by a rhenium tricarbonyl bipyridine-based catalyst appended to amino acids and peptidic platforms: incorporating proton relays and hydrogen-bonding functional groups." Faraday Discussions 198 (2017): 279–300. http://dx.doi.org/10.1039/c7fd00003k.

Full text

Abstract:

Herein, we report a new approach to bio-inspired catalyst design. The molecular catalyst employed in these studies is based on the robust and selective Re(bpy)(CO)<sub>3</sub>Cl-type (bpy = 2,2′-bipyridine) homogeneous catalysts, which have been extensively studied for their ability to reduce CO<sub>2</sub>electrochemically or photochemically in the presence of a photosensitizer. These catalysts can be highly active photocatalysts in their own right. In this work, the bipyridine ligand was modified with amino acids and synthetic peptides. These results build on earlier findings wherein the bip

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!