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Journal articles on the topic 'A number of limiters'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Fokui, Willy Stephen Tounsi, Michael Saulo, and Livingstone Ngoo. "A modified bridge-type nonsuperconducting fault current limiter for distribution network application." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 3 (2021): 1751. http://dx.doi.org/10.11591/ijpeds.v12.i3.pp1751-1763.

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The electrical distribution network is undergoing tremendous modifications with the introduction of distributed generation technologies which have led to an increase in fault current levels in the distribution network. Fault current limiters have been developed as a promising technology to limit fault current levels in power systems. Though, quite a number of fault current limiters have been developed; the most common are the superconducting fault current limiters, solid-state fault current limiters, and saturated core fault current limiters. These fault current limiters present potential faul

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Willy, Stephen Tounsi Fokui, Saulo Michael, and Ngoo Livingstone. "A modified bridge-type nonsuperconducting fault current limiter for distribution network application." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 3 (2021): 1751–63. https://doi.org/10.11591/ijpeds.v12.i3.pp1751-1763.

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The electrical distribution network is undergoing tremendous modifications with the introduction of distributed generation technologies which have led to an increase in fault current levels in the distribution network. Fault current limiters have been developed as a promising technology to limit fault current levels in power systems. Though, quite a number of fault current limiters have been developed; the most common are the superconducting fault current limiters, solid-state fault current limiters, and saturated core fault current limiters. These fault current limiters present potential faul

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3

Siti Aisyah Alimuddin, Iman Fitri Ismail, Akmal Nizam Mohammed, and Bambang Basuno. "The Influence of Limiters on Davis-Yee and Harten-Yee TVD Schemes." CFD Letters 14, no. 9 (2022): 15–31. http://dx.doi.org/10.37934/cfdl.14.9.1531.

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TVD schemes have many selections of limiters, but the recommendation of limiters for specific cases is not available in the literature. This study focuses on incorporating two flux limiters as the extension of the TVD schemes proposed by Harten-Yee and Davis-Yee and extends the test case on external flows, blunt-body. The method used in this study is Harten-Yee Upwind TVD and Davis-Yee Symmetric TVD scheme with different limiter functions to simulate cases for two-dimensional compressible flow. The results show that all the limiter functions can capture shock waves when the flow passes through

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4

Sheng, Zhaohan, Jianguo Du, Qiang Mei, and Tingwen Huang. "New Analyses of Duopoly Game with Output Lower Limiters." Abstract and Applied Analysis 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/406743.

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In the real business world, player sometimes would offer a limiter to their output due to capacity constraints, financial constraints, or cautious response to uncertainty in the world. In this paper, we modify a duopoly game with bounded rationality by imposing lower limiters on output. Within our model, we analyze how lower limiters have an effect on dynamics of output and give proof in theory why adding lower limiters can suppress chaos. We also explore the numbers of the equilibrium points and the distribution of conditioned equilibrium points. Stable region of the conditioned equilibrium i

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Grinstein, F. F., and C. Fureby. "Recent Progress on MILES for High Reynolds Number Flows." Journal of Fluids Engineering 124, no. 4 (2002): 848–61. http://dx.doi.org/10.1115/1.1516576.

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A promising large-eddy simulation (LES) approach is monotonically integrated LES (MILES) which involves solving the Navier-Stokes equations using high-resolution monotone algorithms. In MILES, the subgrid scale (SGS) flow physics is provided by intrinsic, nonlinear, high-frequency filters built into the discretization and implicit SGS models. Mathematical and physical aspects of implicit SGS modeling using nonlinear flux-limiters are addressed using a formalism based on the modified LES equations approach. Detailed properties of the implicit subgrid model are related to the flux limiter, which

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Elong, Alain Joel, Ling Zhou, Bryan Karney, Zijian Xue, and Yanqing Lu. "A Comprehensive Numerical Overview of the Performance of Godunov Solutions Using Roe and Rusanov Schemes Applied to Dam-Break Flow." Water 16, no. 7 (2024): 950. http://dx.doi.org/10.3390/w16070950.

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As open channel simulations are of great economic and human significance, many numerical approaches have been developed, with the Godunov schemes showing particular promise. To evaluate, confirm, and extend the simulation results of others, a variety of first- and second-order FVMs are available, with Rusanov and Roe schemes being used here to simulate the demanding case of 1D and 2D flows following a dam break. The virtual boundary cells approach is shown to achieve a monotonic solution for both interior and boundary cells, and while flux computation is employed at boundary cells, a refinemen

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Kutsepolenko, A. V., A. I. Antonevich, and D. V. Nepsha. "Modern Means of Ensuring Safety During the Upward Movement of the Elevator Car and When it Stops in the Floor Area." Science & Technique 22, no. 6 (2023): 460–69. http://dx.doi.org/10.21122/2227-1031-2023-22-6-460-469.

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Elevators are potentially dangerous objects and, despite the fairly high safety of modern elevators, which is regulated by industrial safety rules, State Standards and manufacturer’s instructions, the requirements for elevators are constantly becoming more stringent. According to clause 5.6.1.1 (b) and clause 5.6.6 of GOST [All-Union State Standard] 33984.1–2016, it is required to prevent overspeeding when moving the cabin in both directions (up and down). To meet this requirement, elevators can be equipped with two single-acting speed limiters, one of which activates single-acting safety devi

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8

Skamarock, William C. "Positive-Definite and Monotonic Limiters for Unrestricted-Time-Step Transport Schemes." Monthly Weather Review 134, no. 8 (2006): 2241–50. http://dx.doi.org/10.1175/mwr3170.1.

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Abstract General positive-definite and monotonic limiters are described for use with unrestricted-Courant-number flux-form transport schemes. These limiters are tested using a time-split multidimensional transport scheme. The importance of minimizing the splitting errors associated with the time-split operator and of the consistency between the transport scheme and the discrete continuity equation is demonstrated.

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9

Sarkar, Debraj, Debabrata Roy, Amalendu Bikash Choudhury, and Sotoshi Yamada. "Performance Analysis of SISFCL with the Variation of Circuit Parameters using Jiles Atherton Hysteresis Model." International Journal of Emerging Electric Power Systems 17, no. 4 (2016): 393–400. http://dx.doi.org/10.1515/ijeeps-2016-0016.

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Abstract In modern day power systems, fault current limiters (FCL) are used to provide protection from high fault currents in the event of electrical faults and thus help to deliver uninterrupted electric supply to the consumers. Several technologies of FCLs are available for practical usage. However, the saturated iron-core superconducting fault current limiter (SISFCL) has gained a lot of attention in recent years in view of its ability to offer very low impedance during normal operation and high impedance during faulted condition. Previous mathematical models defining the performance of the

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10

ELADAWY, Mohamed, and Ibrahim Metwally. "STACKED DELTA DESIGN OF THREE-PHASE PERMANENT-MAGNET FAULT CURRENT LIMITERS." Journal of Engineering Research [TJER] 18, no. 1 (2021): 26–35. http://dx.doi.org/10.53540/tjer.vol18iss1pp26-35.

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This paper proposes an improvement for the dynamic performance of presaturated stacked permanent magnet biased three-phase fault current limiter (PMFCL) through COMSOL finite element simulation. The nonlinear demagnetization behavior of the permanent magnet, especially in the upper part of the B-H curve with negative magnetic field intensity, has been modelled through the Jiles-Atherton method. This enables a realistic representation of the PMFCL dynamic behavior throughout its entire operations of pre-fault, fault and fault removal, respectively. The experimental measurements have been consid

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11

Gao, Qi, Xiaojing Zhang, and Yiqian Wang. "Optimal determination of the number, capacity and location of DGs to improve the coordination of overcurrent relays in distribution networks." Intelligent Decision Technologies 19, no. 3 (2024): 1912–25. https://doi.org/10.1177/18724981241305885.

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Increasing the penetration rate of DG (Distributed Generation) units has various advantages for the network. In addition to various advantages, the use of DGs has problems, such as the emergence of protection problems in the network, which is caused by the increase in the penetration rate of DG units. To maximize the benefits of DGs, such as reducing network power losses, it is necessary to choose their location and capacity correctly. To lessen the adverse effects of DGs in the network, it is also necessary to find the optimal location and capacity of Fault Current Limiters. Then, the optimal

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12

Mehmetoglu, Orhan, and Bojan Popov. "Maximum principle and convergence of central schemes based on slope limiters." Mathematics of Computation 81, no. 277 (2012): 219–31. http://dx.doi.org/10.1090/s0025-5718-2011-02514-7.

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13

Dadd, G. J., and K. K. Chan. "Gas Turbine Mach Number Control With Simplified Fuel System." Journal of Engineering for Gas Turbines and Power 124, no. 4 (2002): 792–800. http://dx.doi.org/10.1115/1.1359785.

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The compressor exit Mach number control theory presented here will enable improved control of transient compressor working point trajectories of a turbine engine. This will allow the steady working line to be raised towards the surge boundary with the advantage of increased thrust and reduced specific fuel consumption. This new control method can replace the rigid acceleration and deceleration limiters of the fuel control loop, and achieve superior surge avoidance performance. This paper documents the theoretical and practical study of Mach number controllers designed for implementation with a

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Kumar, Shrivastav Alok, Sadhu Pradip Kumar, and Ankur Ganguly. "Performance Analysis of Transient Current Limiters in a Distribution System." Engineering, Technology & Applied Science Research 8, no. 2 (2018): 2640–45. https://doi.org/10.5281/zenodo.1257471.

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In this study, a simple, but effective method is presented for the limitation of the Y-yg transformers transient current. One of the main privileges of this method is its simple topology. It does not need any control circuit or measurement unit. The method is based on a three-phase thyristor bridge with a low resistance reactor. Since the number of thyristors is minimized, the voltage ripple, electrical losses and the malfunction probability owing to device failure are decreased considerably. The proposed method is simulated and validated by MATLAB simulation and conventional methods test resu

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15

Rohmawati Rohmawati and Febri Yuliani. "Implementasi Alat Pembatas Kecepatan Di Kecamatan Binawidya." Eksekusi : Jurnal Ilmu Hukum dan Administrasi Negara 2, no. 3 (2024): 67–82. http://dx.doi.org/10.55606/eksekusi.v2i3.1188.

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Road is a land transportation insfrastucture that covers all part of the road, including traffic facilities. One of the most common road equipment facilities is speed limiters which function to limit the speed of vehicle users. The regulation that governing about these speed limiters are Regulation of Minister of Transportation Number 14 of 2021. This policy was made as a guideline for the implementation of road equipment facilities, including speed limiters. However, in its implementation in Binawidya District, this regulation is rarely known by the public. In the end, many road that require

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16

Zhang, Xiuchang, H. S. Ruiz, Jianzhao Geng, and T. A. Coombs. "Optimal location and minimum number of superconducting fault current limiters for the protection of power grids." International Journal of Electrical Power & Energy Systems 87 (May 2017): 136–43. http://dx.doi.org/10.1016/j.ijepes.2016.11.014.

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17

Miller, Peter, and James Schreiber. "Multilevel Considerations of Family Homelessness and Schooling in the Recession Era." Journal of School Leadership 22, no. 1 (2012): 147–85. http://dx.doi.org/10.1177/105268461202200107.

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This mixed methods investigation of homeless education in a major urban region identified a number of significant developments and dilemmas amid the larger homeless crisis in the United States. We found that the wider community demographics of homelessness have shifted in recent years, resulting in a higher number of homeless families—many of whom were experiencing homelessness for the first time. In the education domain, these families experienced wide-ranging problems that they perceived as limiters to their advancement. The findings are framed with the help of several elements of Bronfenbre

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18

Dragunov, V. P., D. I. Ostertak, R. E. Sinitskiy, and E. V. Dragunova. "Features of the Operation of a Three-Electrode Electrostatic Microgenerator in the Presence of Collisions between Electrodes." Russian Microelectronics 51, no. 5 (2022): 334–48. http://dx.doi.org/10.1134/s1063739722050043.

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Abstract The results of studying the influence of impact interactions on the operation of a three-electrode two-capacitor microelectromechanical transducer (MEMT) and a microgenerator based on it are presented. The operation of the microgenerator in the impact periodic mode is analyzed for two extreme cases, when the movable electrode initially comes into contact with the limiters located on the left (LWC) or right (RWC) walls of the casing. The relationship between the system parameters and the characteristics of the external driving force source, which makes it possible to evaluate the possi

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19

Mandli, Kyle T., Aron J. Ahmadia, Marsha Berger, et al. "Clawpack: building an open source ecosystem for solving hyperbolic PDEs." PeerJ Computer Science 2 (August 8, 2016): e68. http://dx.doi.org/10.7717/peerj-cs.68.

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Clawpack is a software package designed to solve nonlinear hyperbolic partial differential equations using high-resolution finite volume methods based on Riemann solvers and limiters. The package includes a number of variants aimed at different applications and user communities. Clawpack has been actively developed as an open source project for over 20 years. The latest major release, Clawpack 5, introduces a number of new features and changes to the code base and a new development model based on GitHub and Git submodules. This article provides a summary of the most significant changes, the ra

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Wang, Sulin, and Zhengfu Xu. "Total variation bounded flux limiters for high order finite difference schemes solving one-dimensional scalar conservation laws." Mathematics of Computation 88, no. 316 (2018): 691–716. http://dx.doi.org/10.1090/mcom/3364.

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21

Habib, Riffat, Tahir Saeed Khan, Zubair Ahmad, Muhammad Saad Khan, and Ebenezer Bonyah. "Two-dimensional stable lattice Boltzmann simulation of turbulent flow in wavy walled channel." AIP Advances 13, no. 1 (2023): 015114. http://dx.doi.org/10.1063/5.0123033.

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In recent years, the lattice Boltzmann equation has developed into a promising technique for computational fluid dynamics (CFD). The lattice Boltzmann model (LBM) approach is derived from the Boltzmann equation and kinetic theory, as opposed to the standard CFD methods that are based on direct discretization of the Navier–Stokes equations. In this paper, Newtonian flow passing through a wavy walled channel has been examined for laminar to turbulent transition by using the LBM. The simple LBM for this problem becomes unstable as the Reynolds number increases and the laminar to turbulent transit

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22

Balcázar-Arciniega, N., J. Rigola, and A. Oliva. "Unstructured Conservative Level-Set (UCLS) method for reactive mass transfer in bubble swarms at high density ratio." Journal of Physics: Conference Series 2766, no. 1 (2024): 012062. http://dx.doi.org/10.1088/1742-6596/2766/1/012062.

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Abstract This research presents a parallel Unstructured Conservative Level-Set (UCLS) method for reactive mass transfer in bubbles with a high-density ratio. This method uses the multiple-marker UCLS approach to circumvent the numerical coalescence of bubbles, combined with the finite-volume method to discretize transport equations on 3D collocated unstructured meshes. The fractional-step projection method solves the pressure-velocity coupling. The central difference scheme discretizes the diffusive term, whereas convective term within the momentum transport equation, level-set advection equat

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23

Xu, Zhengfu. "Parametrized maximum principle preserving flux limiters for high order schemes solving hyperbolic conservation laws: one-dimensional scalar problem." Mathematics of Computation 83, no. 289 (2013): 2213–38. http://dx.doi.org/10.1090/s0025-5718-2013-02788-3.

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24

Blair, Jennifer. "Art Museum Image Gallery." Charleston Advisor 21, no. 3 (2020): 15–19. http://dx.doi.org/10.5260/chara.21.3.15.

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Art Museum Image Gallery provides access through a subscription to museum collections of over 156,000 high-quality images sourced from the Art Archive of Picture Desk, Inc. and includes paintings, prints, ceramics, sculpture, and other art. The images span from 3000 B.C. to the present, with an emphasis on cultural and area studies. The price varies and is based on subscribers’ overlap with packages and other factors unique to institution needs, but primarily is on bracket determined by number of users. The interface could use improvement in its limiters. But individual item displays surpass s

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Miao, Quan, Erping Sun, and Yan Xu. "How Micelles Influence the Optical Limiting Properties of Zinc Porphyrins and J-Aggregates for Picosecond Pulse Trains." Axioms 12, no. 1 (2022): 23. http://dx.doi.org/10.3390/axioms12010023.

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In this work, we studied nonlinear dynamics and optical limiting (OL) effects of pulse trains in zinc porphyrins meso-tetrakis methylpyridiniumyl (Zn2+TMPyP) and meso-tetrakis sulfonatophenyl (Zn2+TPPS) and porphyrin J-aggregates. The environments of zinc porphyrins were selected as aqueous solutions and micelles of sodium dodecyl sulfate (SDS) and cetyltrimethyl ammonium bromide (CTAB). Our numerical results show that both Zn2+TMPyP and Zn2+TPPS are good optical limiters in all solutions. Zn2+TPPS in aqueous solutions shows the best OL effect. Micelles of SDS and CTAB produced less OL effects

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Lirkov, Ivan. "Performance Analysis of a Scalable Algorithm for 3D Linear Transforms on Supercomputer with Intel Processors/Co-Processors." Cybernetics and Information Technologies 20, no. 6 (2020): 94–104. http://dx.doi.org/10.2478/cait-2020-0064.

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Abstract Practical realizations of 3D forward/inverse separable discrete transforms, such as Fourier transform, cosine/sine transform, etc. are frequently the principal limiters that prevent many practical applications from scaling to a large number of processors. Existing approaches, which are based primarily on 1D or 2D data decompositions, prevent the 3D transforms from effectively scaling to the maximum (possible/available) number of computer nodes. A highly scalable approach to realize forward/inverse 3D transforms has been proposed. It is based on a 3D decomposition of data and geared to

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27

Schibli, H. S. "On ‘the one’ in Philolaus, fragment 7." Classical Quarterly 46, no. 1 (1996): 114–30. http://dx.doi.org/10.1093/cq/46.1.114.

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Presocratic philosophy, for all its diverse features, is united by the quest to understand the origin and nature of the world. The approach of the Pythagoreans to this quest is governed by their belief, probably based on studies of the numerical relations in musical harmony, that number or numerical structure plays a key role for explaining the world-order, the cosmos. It remains questionable to what extent the Pythagoreans, by positing number as an all-powerful explanatory concept, broke free from Presocratic ideas that certain stuffs or material elements sufficed to account for the source (⋯

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BATISHCHEV, O. V., M. M. SHOUCRI, A. A. BATISHCHEVA, and I. P. SHKAROFSKY. "Fully kinetic simulation of coupled plasma and neutral particles in scrape-off layer plasmas of fusion devices." Journal of Plasma Physics 61, no. 2 (1999): 347–64. http://dx.doi.org/10.1017/s0022377898007375.

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Fluid descriptions of plasmas, which are usually applied to a collisional plasma, can only be justified for very small Coulomb Knudsen numbers. However, the scrape-off layer (SOL) plasmas of experimental magnetic confinement fusion devices tend to have operational regimes characterized by a Coulomb Knudsen number around 0.1. In interesting detached regimes of an SOL plasma in a tokamak, when the plasma detaches from the limiters or divertors, this number may increase along with the local plasma gradients. Plasma gradients are also known to increase (and thus drive non-local effects) in inertia

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Bayati, N., S. H. H. Sadeghi, and A. Hosseini. "Optimal Placement and Sizing of Fault Current Limiters in Distributed Generation Systems Using a Hybrid Genetic Algorithm." Engineering, Technology & Applied Science Research 7, no. 1 (2017): 1329–33. http://dx.doi.org/10.48084/etasr.976.

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Distributed Generation (DG) connection in a power system tends to increase the short circuit level in the entire system which, in turn, could eliminate the protection coordination between the existing relays. Fault Current Limiters (FCLs) are often used to reduce the short-circuit level of the network to a desirable level, provided that they are dully placed and appropriately sized. In this paper, a method is proposed for optimal placement of FCLs and optimal determination of their impedance values by which the relay operation time, the number and size of the FCL are minimized while maintainin

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Bayati, N., S. H. H. Sadeghi, and A. Hosseini. "Optimal Placement and Sizing of Fault Current Limiters in Distributed Generation Systems Using a Hybrid Genetic Algorithm." Engineering, Technology & Applied Science Research 7, no. 1 (2017): 1329–33. https://doi.org/10.5281/zenodo.291429.

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Distributed Generation (DG) connection in a power system tends to increase the short circuit level in the entire system which, in turn, could eliminate the protection coordination between the existing relays. Fault Current Limiters (FCLs) are often used to reduce the short-circuit level of the network to a desirable level, provided that they are dully placed and appropriately sized. In this paper, a method is proposed for optimal placement of FCLs and optimal determination of their impedance values by which the relay operation time, the number and size of the FCL are minimized while maintainin

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31

Yong, Chun Seng, Sridhar Idapalapati, Chee Wang Lim, and Kheng Lim Goh. "Auxetic Composite Sandwich for Vibration Damping Through Axisymmetric Deformation." Journal of Composites Science 9, no. 4 (2025): 162. https://doi.org/10.3390/jcs9040162.

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External undesirable vibrations from the environment can affect the performance of vibration-sensitive equipment. Passive isolators are simpler, lighter, and cheaper, and constrained layer damping is a low-cost yet effective method of vibration dampening. Traditional methods of improving constrained layer damping include increasing the number of layers or directly connecting one end of the constraining layers to the base structure. The drawback of these methods is the requirement to increase the overall thickness. Also, like most passive isolators, it has a limitation on stability, which is us

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Refaat, Mohamed M., Shady H. E. Abdel Aleem, Yousry Atia, Essam El Din Aboul Zahab, and Mahmoud M. Sayed. "A New Decision-Making Strategy for Techno-Economic Assessment of Generation and Transmission Expansion Planning for Modern Power Systems." Systems 11, no. 1 (2023): 23. http://dx.doi.org/10.3390/systems11010023.

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Planning for the intensive use of renewable energy sources (RESs) has attracted wide attention to limit global warming and meet future load growth. Existing studies have shown that installing projects such as transmission lines, energy storage systems (ESSs), fault current limiters, and FACTs facilitate the integration of RESs into power systems. Different generation and transmission network expansion planning models have been developed in the literature; however, a planning model that manages multiple types of projects while maximizing the hosting capacity (HC) is not widely presented. In thi

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Ragil Saputra Efendi, Lilik Andar Yuni, and Abdul Syakur. "Implementasi Permenhub tentang Alat Pengendali dan Pengaman Pengguna Jalan di Desa Sungai Meriam Kecamatan Anggana." Al-Qanun: Jurnal Pemikiran dan Pembaharuan Hukum Islam 25, no. 2 (2022): 204–18. http://dx.doi.org/10.15642/alqanun.2022.25.2.204-218.

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The practical and beneficial approach should be considered when making a speed limiter or speed bump. In the village of Sungai Meriam, it was reported that a female motorist fell due to speed bumps or speed limiters built by local residents on public roads carelessly without following procedures so that they could endanger road users. The results obtained from this study are: First, the inhibiting factors for implementing PM Transportation Number 82 of 2018 Concerning Road Control and Safety Equipment are a. Public awareness of traffic safety or community behaviour that does not comply with ap

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Setiawan, Ari, and Emelda Raudhati. "Analisis Pengaruh Rumble Strips dalam Mereduksi Kecepatan Kendaraan." Jurnal Talenta Sipil 6, no. 1 (2023): 126. http://dx.doi.org/10.33087/talentasipil.v6i1.188.

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The number of traffic accidents has increased every year, especially in Jambi City. One of the government's efforts to reduce the number of traffic accidents is to make regulations limiting speed in pedestrian areas, especially school areas. One of the speed limiters that is widely used is the rumble strip, especially in the SDN 206 area of Jambi City. This study analyzes the effect of Rumble Strips in reducing the speed of motorbikes and light vehicles. The results obtained for the speed of the motorbike before Rumble Strips was 38.24 km/hour while after Rumble Strips it was 23.81 km/hour and

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Boskovic, Stefan, Aleksandar Karac, Slobodan Vrhovac, Aleksandar Belic, and Branko Bugarski. "Investigation of electrohydrodynamic calculations." Chemical Industry 76, no. 2 (2022): 65–74. http://dx.doi.org/10.2298/hemind211110010b.

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A perfect dielectric model was incorporated into the OpenFOAM? software and used for investigation and, possibly, improvements of electrohydrodynamic calculations. Two different sets of numerical simulations were analyzed, in which two different fluids were present. The first set was one-dimensional, while in the second, a drop of one fluid was surrounded by the other fluid. It is shown that oscillations and possible artificial generation of a curl of the electric field strength can be observed at applying certain expressions or calculation strategies, which can be thus abandoned. Usage of dyn

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Strothmann, Molly. "Book Review: Inquiry and Research: A Relational Approach in the Classroom." Reference & User Services Quarterly 59, no. 2 (2020): 135. http://dx.doi.org/10.5860/rusq.59.2.7281.

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Why do students seek information from academic libraries? More often than many librarians and other educators might hope, their goal is box-checking, finding the required number of resources of the prescribed type to fill the mandatory bibliography to get the assigned paper finished (and forgotten). Librarians risk reinforcing this mindset when we treat the research process mechanistically, as a sequence of steps to be executed: learn these tools, enter these keywords, apply these limiters, click here to save results—check these literal boxes. In Inquiry and Research: A Relational Approach in

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Curtis, Jeffrey H., Nicole Riemer, and Matthew West. "Explicit stochastic advection algorithms for the regional-scale particle-resolved atmospheric aerosol model WRF-PartMC (v1.0)." Geoscientific Model Development 17, no. 22 (2024): 8399–420. http://dx.doi.org/10.5194/gmd-17-8399-2024.

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Abstract. This paper presents the development of a stochastic particle method to simulate advection in regional-scale models with a particle-resolving aerosol representation. The new method is based on finite-volume discretizations with the flux terms interpreted as probabilities of particle transport between grid cells. We analyze the method in 1D and show that the stochastic particle sampling during transport injects energy at high spatial frequencies, which can be partially compensated for with the choice of a dissipative odd-order finite-volume scheme. We then apply the stochastic third- a

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OBASUYI, L., and P. OTOIDE. "EFFECTIVE METHODS FOR SEARCHING AND RETRIEVING FULL-TEXT ARTICLES IN LIFE SCIENCES FROM ONLINE ACCESS TO RESEARCH IN THE ENVIRONMENT DATABASES." Nigerian Journal of Life Sciences (ISSN: 2276-7029) 5, no. 2 (2022): 199–208. http://dx.doi.org/10.52417/njls.v5i2.254.

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The study presents eleven (11) simple descriptive approaches for searching and retrieving full-text articles from Online Access to Research in the Environment (OARE) databases. OARE is an Internet portal containing different full-text scholarly databases providing access to quality literature to facilitate and enhance research in environmental Sciences. The purpose of this study is to equip faculty with the necessary skills required to search and retrieve full-text journal articles from OARE databases much more precisely and efficiently. Various methods of searching and retrieving full-text ar

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Blair, Jennifer. "Exact Editions (Institutional)." Charleston Advisor 25, no. 2 (2023): 42–47. http://dx.doi.org/10.5260/chara.25.2.06.

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Exact Editions provides access through a subscription to magazine collections and a small collection of books. The collection is focused, with more than 200 magazines and close to 500 books. Perpetual access is provided for many magazine titles. The price to subscribe varies per title and collection but is clearly listed for individuals, while institutions subscribe based on number of users or full-time enrollment (FTE), dependent on institution type. The interface could use improvement in its limiters in comparison to other academic databases. But individual item displays surpass similar prod

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Hwang, Yao-Hsin. "Development of a Compact and Accurate Discretization for Incompressible Navier-Stokes Equations Based on an Equation-Solving Solution Gradient: Gradient Limiters for High-Reynolds-Number Flows." Numerical Heat Transfer, Part B: Fundamentals 58, no. 6 (2010): 440–60. http://dx.doi.org/10.1080/10407790.2010.522873.

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Shi, X., X. Liu, and K. Zhang. "Effects of preexisting ice crystals on cirrus clouds and comparison between different ice nucleation parameterizations with the Community Atmosphere Model (CAM5)." Atmospheric Chemistry and Physics Discussions 14, no. 12 (2014): 17635–79. http://dx.doi.org/10.5194/acpd-14-17635-2014.

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Abstract. In order to improve the treatment of ice nucleation in a more realistic manner in the Community Atmospheric Model version 5.3 (CAM5.3), the effects of preexisting ice crystals on ice nucleation in cirrus clouds are considered. In addition, by considering the in-cloud variability in ice saturation ratio, homogeneous nucleation takes place spatially only in a portion of cirrus cloud rather than in the whole area of cirrus cloud. With these improvements, the two unphysical limiters used in the representation of ice nucleation are removed. Compared to observations, the ice number concent

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Paoletti, Damiano, Pierluigi Fanelli, Riccardo De Luca, et al. "Thermomechanical Analysis of a PFC Integrating W Lattice Armour in Response to Different Plasma Scenarios Predicted in the EU-DEMO Tokamak." Journal of Nuclear Engineering 3, no. 4 (2022): 421–34. http://dx.doi.org/10.3390/jne3040028.

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Despite the high performance exhibited by tungsten (W), no material would be able to withstand the huge loads expected with extreme plasma transients in EU-DEMO and future reactors, where the installation of sacrificial first wall limiters is essential to prevent excessive wall degradation. The integration of W lattices in the architecture of such components can allow for meeting their conflictual requirements: indeed, they must ensure the effective exhaust of the nominal thermal load during stationary operation; when transients occur, they must thermally insulate and decouple the surface from

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Hoffmann, Laércio Luiz, Walter Boller, and Carlos Alberto Forcelini. "Fungicide Spraying Programs Reducing Asian Soybean Rust Impact on Soybean Yield Components." Journal of Agricultural Science 14, no. 3 (2022): 40. http://dx.doi.org/10.5539/jas.v14n3p40.

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Soybean is one of the leading agricultural commodities, and Brazil is currently the largest producer globally. Despite this, fungal diseases as Asian Soybean Rust (ASR) are among the primary limiters of high crop yields in Brazilian fields. Losses caused by the biotrophic fungus Phakopsora pachyrhizi can reach up to 90%, depending on weather conditions, and several components can be affected during soybean growth and reproduction. Here, we assessed fungicide spraying programs to ASR control, aiming to reduce the losses on soybean components. The experiments were performed under field condition

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Ma, Libin, Chao Yan, and Jian Yu. "A Modal-Decay-Based Shock-Capturing Approach for High-Order Flux Reconstruction Method." Aerospace 10, no. 1 (2022): 14. http://dx.doi.org/10.3390/aerospace10010014.

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The increasing demand for high-fidelity simulations of compressible turbulence on complex geometries poses a number of challenges for numerical schemes, and plenty of high-order methods have been developed. The high-order methods may encounter spurious oscillations or even blow up for strongly compressible flows, and a number of approaches have been developed, such as slope limiters and artificial viscosity models. In the family of artificial viscosity, which measures smoothness using the modal coefficients, the averaged modal decay (MDA) model employs all of the modes instead of only the high

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Carletti, Daniel, Arthur Eduardo Alves Amorim, Thiago Silva Amorim, Domingos Sávio Lyrio Simonetti, Jussara Farias Fardin, and Lucas Frizera Encarnacao. "Adaptive Armature Resistance Control of Virtual Synchronous Generators to Improve Power System Transient Stability." Energies 13, no. 9 (2020): 2365. http://dx.doi.org/10.3390/en13092365.

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The growing number of renewable energy plants connected to the power system through static converters have been pushing the development of new strategies to ensure transient stability of these systems. The virtual synchronous generator (VSG) emerged as a way to contribute to the system stabilization by emulating the behavior of traditional synchronous machines in the power converters operation. This paper proposes a modification in the VSG implementation to improve its contribution to the power system transient stability. The proposal is based on the virtualization of the resistive superconduc

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Sombrin, Jacques. "Non-analytic at the origin, behavioral models for active or passive non-linearity." International Journal of Microwave and Wireless Technologies 5, no. 2 (2013): 133–40. http://dx.doi.org/10.1017/s1759078713000172.

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Most non-linear behavioral models of amplifiers are based on functions that are analytic at the origin and thus can be replaced by their Taylor series development around this point, e.g. polynomials of the input signal. Chebyshev Transforms can be used to compute the harmonic response of the model to a sine input signal. These responses are polynomials of the input signal amplitude. A second application of the Chebyshev transform to the first harmonic response or radio frequency (RF) characteristic will lend the carriers and intermodulation (IM) products for a two-carrier input signal, again p

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Nieto-Wire, Clara, and Kenneth Sobel. "Flight Control Design for a Tailless Aircraft Using Eigenstructure Assignment." International Journal of Aerospace Engineering 2011 (2011): 1–13. http://dx.doi.org/10.1155/2011/549131.

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We apply eigenstructure assignment to the design of a flight control system for a wind tunnel model of a tailless aircraft. The aircraft, known as the innovative control effectors (ICEs) aircraft, has unconventional control surfaces plus pitch and yaw thrust vectoring. We linearize the aircraft in straight and level flight at an altitude of 15,000 feet and Mach number 0.4. Then, we separately design flight control systems for the longitudinal and lateral dynamics. We use a control allocation scheme with weights so that the lateral pseudoinputs are yaw and roll moment, and the longitudinal pseu

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Shur, Michael L., Philippe R. Spalart, Michael Kh Strelets, and Andrey V. Garbaruk. "Analysis of Jet-Noise-Reduction Concepts by Large-Eddy Simulation." International Journal of Aeroacoustics 6, no. 3 (2007): 243–85. http://dx.doi.org/10.1260/147547207782419561.

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The paper outlines the latest improvements to a CFD/CAA numerical system developed by the authors starting in 2001, and presents its application to the evaluation of three noise-reduction concepts. The improvements include a two-step RANS-LES approach to represent complex nozzles much more faithfully, and an accurate algorithm for shock capturing in LES, now based on local automatic activation of flux-limiters. The noise-reduction concepts considered are: beveled nozzles, dual nozzles with fan-flow deflection, and chevron nozzles. The simulations are carried out on PC clusters with at most six

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Stankevich, Vladimir G., Nickolay Y. Svechnikov, and Boris N. Kolbasov. "Comparative Analysis of Spectroscopic Studies of Tungsten and Carbon Deposits on Plasma-Facing Components in Thermonuclear Fusion Reactors." Symmetry 15, no. 3 (2023): 623. http://dx.doi.org/10.3390/sym15030623.

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Studies on the erosion products of tungsten plasma-facing components (films, surfaces, and dust) for thermonuclear fusion reactors by spectroscopic methods are considered and compared with those of carbon deposits. The latter includes: carbon–deuterium CDx (x ~ 0.5) smooth films deposited at the vacuum chamber during the erosion of the graphite limiters in the T-10 tokamak and mixed CHx-Me films (Me = W, Fe, etc.) formed by irradiating a tungsten target with an intense H-plasma flux in a QSPA-T plasma accelerator. It is shown that the formerly developed technique for studying CDx films with 15

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Flükiger, Rene. "Overview of Superconductivity and Challenges in Applications." Reviews of Accelerator Science and Technology 05 (January 2012): 1–23. http://dx.doi.org/10.1142/s1793626812300010.

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Considerable progress has been achieved during the last few decades in the various fields of applied superconductivity, while the related low temperature technology has reached a high level. Magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) are so far the most successful applications, with tens of thousands of units worldwide, but high potential can also be recognized in the energy sector, with high energy cables, transformers, motors, generators for wind turbines, fault current limiters and devices for magnetic energy storage. A large number of magnet and cable prototypes

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