Academic literature on the topic 'Electrical Networks'

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Journal articles on the topic "Electrical Networks"

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Yan, Linjuan, Bin Bao, Daniel Guyomar, and Mickaël Lallart. "Periodic structure with interconnected nonlinear electrical networks." Journal of Intelligent Material Systems and Structures 28, no. 2 (July 28, 2016): 204–29. http://dx.doi.org/10.1177/1045389x16649448.

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This article aims at investigating the filtering abilities of periodic structures with nonlinear interconnected synchronized switch damping on inductor electrical networks. Periodic structures without electrical networks themselves naturally have the function of filtering since the structure response breaks into pass bands and stop bands when the structure is excited by an external force with multiple or varying frequencies. Introduction of linear electrical networks in the periodic structure makes stop bands of the structure wider than that of the structure without electrical networks. However, nonlinear piezoelectric electrical networks may have better effect on the mechanical wave attenuation than linear piezoelectric electrical networks in terms of frequency band. Therefore, this article proposes a piezoelectric periodic structure with nonlinear interconnected synchronized switch damping on short-circuit/synchronized switch damping on inductor electrical network. A transfer matrix formulation including the interconnected electrical network is also proposed for deriving the characteristics of elastic wave propagation. The results show that the proposed technique permits enhancing the damping abilities in particular frequency bands compared to electrically independent periodic cells, which, combined with structural tailoring, would allow achieving high damping performance.
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Brown, O. R. "Electrical networks." Electrochimica Acta 38, no. 4 (March 1993): 626. http://dx.doi.org/10.1016/0013-4686(93)85025-t.

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Sharp, A. A., L. F. Abbott, and E. Marder. "Artificial electrical synapses in oscillatory networks." Journal of Neurophysiology 67, no. 6 (June 1, 1992): 1691–94. http://dx.doi.org/10.1152/jn.1992.67.6.1691.

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1. We use an electronic circuit to artificially electrically couple neurons. 2. Strengthening the coupling between an oscillating neuron and a hyperpolarized, passive neuron can either increase or decrease the frequency of the oscillator depending on the properties of the oscillator. 3. The result of electrically coupling two neuronal oscillators depends on the membrane potentials, intrinsic properties of the neurons, and the coupling strength. 4. The interplay between chemical inhibitory synapses and electrical synapses can be studied by creating both chemical and electrical synapses between two cultured neurons and by artificially strengthening the electrical synapse between the ventricular dilator and one pyloric dilator neuron of the stomatogastric ganglion.
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Vingron, Martin, and Michael S. Waterman. "Alignment networks and electrical networks." Discrete Applied Mathematics 71, no. 1-3 (December 1996): 297–309. http://dx.doi.org/10.1016/s0166-218x(96)00070-4.

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Zemanian, A. H. "Transfinite electrical networks." IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 46, no. 1 (1999): 59–70. http://dx.doi.org/10.1109/81.739185.

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Marinov, Corneliu A., and Gheorghe Moroşanu. "Consistent models for electrical networks with distributed parameters." Mathematica Bohemica 117, no. 2 (1992): 113–22. http://dx.doi.org/10.21136/mb.1992.125904.

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Rücker, Gerta. "Network meta-analysis, electrical networks and graph theory." Research Synthesis Methods 3, no. 4 (September 25, 2012): 312–24. http://dx.doi.org/10.1002/jrsm.1058.

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Sharma, Shalini, Bhupendra Kumar Pathak, and Rajiv Kumar. "Understanding of Network Resiliency in Communication Networks with its Integration in Internet of Things - A Survey." Electrica 23, no. 2 (April 5, 2023): 318–28. http://dx.doi.org/10.5152/electrica.2023.22126.

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KLYUEV, R. V., V. I. GOLIK, I. I. BOSIKOV, and O. A. GAVRINA. "DEVELOPMENT OF METHODS FOR ENSURING ELECTRICAL SAFETY OF ELECTRIC NETWORKS OF QUARRIES." News of the Tula state university. Sciences of Earth 3, no. 1 (2020): 74–91. http://dx.doi.org/10.46689/2218-5194-2020-3-1-74-91.

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The paper presents the results of a study of the state of isolation of quarry networks with a voltage higher than 1000 V, which is a mandatory requirement for periodic inspection of all electrical devices and equipment at mining enterprises to ensure electrical safety. A method of comparative assessment of the isolation level of quarry networks has been developed, which includes a number of parameters as input data, such as the total length of electrically connected cable and overhead lines, respectively, the number of excavators, transformer substations and switch points in the quarry network. The method allows you to compare the average total conductivity of individual, newly introduced network elements or the average total conductivity of the modified network as a whole with the actual conductivity of the quarry network as a whole, developed over the entire period of operation of the quarry. The paper presents practical results of the study of the state of isolation of individual sections of the 6 kV network of the quarry, allowing for their comparative analysis using an accurate method that takes into account all the parameters of the electrical network and a simplified calculation method, taking into account the allowed 10% error in determining the equivalent length of the cable network. The obtained results can be used in the analysis of insulation condition of the electrical network at the various enterprises of the mining industry.
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Wang, Tao, Xiaoguang Wei, Tao Huang, Jun Wang, Luis Valencia-Cabrera, Zhennan Fan, and Mario J. Pérez-Jiménez. "Cascading Failures Analysis Considering Extreme Virus Propagation of Cyber-Physical Systems in Smart Grids." Complexity 2019 (March 13, 2019): 1–15. http://dx.doi.org/10.1155/2019/7428458.

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Communication networks as smart infrastructure systems play an important role in smart girds to monitor, control, and manage the operation of electrical networks. However, due to the interdependencies between communication networks and electrical networks, once communication networks fail (or are attacked), the faults can be easily propagated to electrical networks which even lead to cascading blackout; therefore it is crucial to investigate the impacts of failures of communication networks on the operation of electrical networks. This paper focuses on cascading failures in interdependent systems from the perspective of cyber-physical security. In the interdependent fault propagation model, the complex network-based virus propagation model is used to describe virus infection in the scale-free and small-world topologically structured communication networks. Meanwhile, in the electrical network, dynamic power flow is employed to reproduce the behaviors of the electrical networks after a fault. In addition, two time windows, i.e., the virus infection cycle and the tripping time of overloaded branches, are considered to analyze the fault characteristics of both electrical branches and communication nodes along time under virus propagation. The proposed model is applied to the IEEE 118-bus system and the French grid coupled with different communication network structures. The results show that the scale-free communication network is more vulnerable to virus propagation in smart cyber-physical grids.
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Dissertations / Theses on the topic "Electrical Networks"

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SILVA, DENIS LAGE FERREIRA DA. "NONLINEAR ELECTRICAL NETWORKS SIMULATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14447@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO
As simulações de redes elétricas são atualmente fundamentais para o setor elétrico. Uma de suas principais utilidades é permitir a análise de falhas e ocorrências, que eventualmente passariam despercebidas. Existe atualmente, uma grande variedade de algoritmos para realizar simulações de redes lineares, que correspondem à grande maioria dos testes realizados em uma rede elétrica típica, quando submetidos a situações usuais. Contudo, existem consumidores de grande porte que possuem cargas não-lineares com uma grande influência na rede que a alimenta. Sendo assim, torna-se necessário modelar esta carga não-linear para que possa ser inserida no simulador da rede elétrica. Este trabalho propõe um método para a formulação das equações de estado de redes não-lineares de forma sistemática. A formulação do problema é, neste caso, parte fundamental da sua solução, já que atualmente existem, comercialmente, algoritmos capazes de resolver equações diferenciais não-lineares, como as que serão abordadas. Este trabalho apresenta a simulação de uma rede elétrica contendo sub-redes lineares e sub-redes não-lineares, utilizando um modelo de linhas de transmissão a parâmetros distribuídos através de filtros digitais, permitindo a simulação da subrede linear em taxas mais baixas.
Electrical network simulations are currently very important to the electricity sector. A major benefit from simulations is to permit a deeper insight into faulty network situations, that otherwise could eventually pass unnoticed. Currently, there are many algorithms that simulate linear networks, which comprise the majority of the tests done in a typical network, when subject to normal situations. However, there are large consumers, whose loads are nonlinear. These loads represent large influences to their power feeding network. Thus, it becomes necessary to model this nonlinear sub network so it can be inserted into the electrical network simulator. The purpose of this work is to develop a formulation approach for the nonlinear state equations that represents a nonlinear electrical network. The formulation of the network is, in this case, an essential part of the solution, since there are currently algorithms capable of solving nonlinear differential equations, like the ones that will be studied in this work.
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Jannotti, John 1974. "Network layer support for overlay networks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29274.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
Includes bibliographical references (p. 98-103).
Overlay networks are virtual networks formed by cooperating nodes that share an underlying physical network. They represent a flexible and deployable approach for applications to obtain new network semantics without modification of the underlying network, but they suffer from efficiency concerns. This thesis presents two new primitives for implementation in the network layer (i.e., the routers of the physical network). These primitives support the efficient operation and construction of overlay networks. Packet Reflection allows end hosts to request that routers perform specialized routing and duplication for certain packets. Path Painting allows multiple end hosts to determine where their disparate paths to a rendezvous point meet, in order to facilitate overlay topology building that reflects the topology of the underlying network. Both primitives can be incrementally deployed for incremental benefit. This thesis describes a variety applications of these primitives: application level multicast systems with various semantics, an extended Internet Indirect Infrastructure with latency benefits over the original proposal, and an extension to Chord which would allows faster lookups. Experimental results on simulated topologies indicate that when all routers support the proposed primitives, less that 5% overhead (in terms of link usage and latency) remains in two common overlay network usage scenarios. In addition, the benefits gained from deployment are significant even at low deployment levels. At approximately 25% deployment, the primitives have reduced overhead by over 50%. When intelligent deployment strategies are used, link usage overhead is less than 30% at less than 10% deployment. Finally, the results indicate that these benefits affect the area local to the deployed routers, providing a deployment incentive to independent networks.
by John Jannotti.
Ph.D.
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Kim, MinJi Ph D. Massachusetts Institute of Technology. "Network coding for robust wireless networks." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/71276.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 157-167).
Wireless networks and communications promise to allow improved access to services and information, ubiquitous connectivity, and mobility. However, current wireless networks are not well-equipped to meet the high bandwidth and strict delay requirements of future applications. Wireless networks suffer from frequent losses and low throughput. We aim to provide designs for robust wireless networks. This dissertation presents protocols and algorithms that significantly improve wireless network performance and effectively overcome interference, erasures, and attacks. The key idea behind this dissertation is in understanding that wireless networks are fundamentally different from wired networks, and recognizing that directly applying techniques from wired networks to wireless networks limits performance. The key ingredient underlying our algorithms and protocols is network coding. By recognizing the algebraic nature of information, network coding breaks the convention of routing networks, and allows mixing of information in the intermediate nodes and routers. This mixing has been shown to have numerous performance benefits, e.g. increase in throughput and robustness against losses and failures. We present three protocols and algorithms, each using network coding to harness a different characteristic of the wireless medium. We address the problem of interference, erasures, and attacks in wireless networks with the following network coded designs. -- Algebraic NC exploits strategic interference to provide a distributed, randomized code construction for multi-user wireless networks. Network coding framework simplifies the multi-user wireless network model, and allows us to describe the multi-user wireless networks in an algebraic framework. This algebraic framework provides a randomized, distributed code construction, which we show achieves capacity for multicast connections as well as a certain set of non-multicast connections. -- TCP/NC efficiently and reliably delivers data over unreliable lossy wireless networks. TCP, which was designed for reliable transmission over wired networks, often experiences severe performance degradation in wireless networks. TCP/NC combines network coding's erasure correction capabilities with TCP's congestion control mechanism and reliability. We show that TCP/NC achieves significantly higher throughput than TCP in lossy networks; therefore, TCP/NC is well suited for reliable communication in lossy wireless networks. -- Algebraic Watchdog takes advantage of the broadcast nature of wireless networks to provide a secure global self-checking network. Algebraic Watchdog allows nodes to detect malicious behaviors probabilistically, and police their neighbors locally using overheard messages. Unlike traditional detection protocols which are receiver-based, this protocol gives the senders an active role in checking the nodes downstream. We provide a trellis-based inference algorithm and protocol for detection, and analyze its performance. The main contribution of this dissertation is in providing algorithms and designs for robust wireless networks using network coding. We present how network coding can be applied to overcome the challenges of operating in wireless networks. We present both analytical and simulation results to support that network coded designs, if designed with care, can bring forth significant gains, not only in terms of throughput but also in terms of reliability, security, and robustness.
by MinJi Kim.
Ph.D.
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Taiwo, Olugbenga Adekunle. "Network access selection in heterogeneous wireless networks." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/16832.

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In heterogeneous wireless networks (HWNs), both single-homed and multi-homed terminals are supported to provide connectivity to users. A multiservice single-homed multi-mode terminal can support multiple types of services, such as voice call, file download and video streaming simultaneously on any one of the available radio access technologies (RATs) such as Wireless Local Area Network (WLAN), and Long Term Evolution (LTE). Consequently, a single-homed multi-mode terminal having multiple on-going calls may need to perform a vertical handover from one RAT to another. One of the major issues in HWNs is how to select the most suitable RAT for multiple handoff calls, and the selection of a suitable RAT for multiple-calls from a single-homed multi-mode terminal in HWNs is a group decision problem. This is because a single-homed multi-mode terminal can connect to only one RAT at a time, and therefore multiple handoff calls from the terminal have to be handed over to the same RAT. In making group decision for multiple-calls, the quality of service (QoS) requirements for individual calls needs to be considered. Thus, the RAT that most satisfies the QoS requirements of individual calls is selected as the most suitable RAT for the multiple-calls. Whereas most research efforts in HWNs have concentrated on developing vertical handoff decision schemes for a single call from a multi-mode terminal, not much has been reported in the literature on RAT-selection for multiple-calls from a single-homed multi-mode terminal in next generation wireless networks (NGWNs). In addition, not much has been done to investigate the sensitivity of RAT-selection criteria for multiple-calls in NGWNs. Therefore, this dissertation addresses these issues by focusing on following two main aspects: (1) comparative analysis of four candidate multi-criteria group decision-making (MCGDM) schemes that could be adapted for making RAT-selection decisions for multiple-calls, and (2) development of a new RAT-selection scheme named the consensus RAT-selection model. In comparative analysis of the candidate RAT-selection schemes, four MCGDM schemes namely: distance to the ideal alternative-group decision making (DIA-GDM), multiplicative exponent weighting-group decision making (MEW-GDM), simply additive weighting-group decision making (SAW-GDM), technique for order preference by similarity to Ideal solution-group decision making (TOPSIS-GDM) are considered. The performance of the multiple-calls RAT-selection schemes is evaluated using the MATLAB simulation tool. The results show that DIA-GDM and TOPSIS-GDM schemes are more suitable for multiple handoff calls than SAW-GDM and MEW-GDM schemes. This is because they are consistent and less-sensitive in making RAT-selection decision than the other two schemes, with regards to RAT-selection criteria (service price, data rate, security, battery power consumption and network delay) in HWNs. In addition, the newly developed RAT-selection scheme incorporates RAT-consensus level for improving RAT-selection decisions for multiple-calls. Numerical results conducted in MATLAB validate the effectiveness and performance of the newly proposed RAT-selection scheme for multiple-calls in HWNs.
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Lee, Anna H. "Simplified random network codes for multicast networks." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33306.

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Thesis (M. Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.
Includes bibliographical references (p. 43).
Network coding is a method of data transmission across a network which involves coding at intermediate nodes. Network coding is particularly attractive for multicast. Building on the work done on random linear network codes, we develop a constrained, simplified code construction suitable for multicast in wireless networks. We analyze bounds on sufficient code size and code success probability via an algebraic framework for network coding. We also present simulation results that compare generalized random network codes with our code construction. Issues unique to the simplified code are explored and a relaxation of the code to improve code performance is discussed.
by Anna H. Lee.
M.Eng.and S.B.
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Shi, Xiaomeng Ph D. Massachusetts Institute of Technology. "Energy aware network coding in wireless networks." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78533.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 97-104).
Energy is one of the most important considerations in designing reliable low-power wireless communication networks. We focus on the problem of energy aware network coding. In particular, we investigate practical energy efficient network code design for wireless body area networks (WBAN). We first consider converge-cast in a star-shaped topology, in which a central base station (BS), or hub, manages and communicates directly with a set of nodes. We then consider a wireless-relay channel, in which a relay node assists in the transmission of data from a source to a destination. This wireless relay channel can be seen as a simplified extended star network, where nodes have relay capabilities. The objective is to investigate the use of network coding in these scenarios, with the goal of achieving reliability under low-energy and lower-power constraints. More specifically, in a star network, we propose a simple network layer protocol, study the mean energy to complete uploads of given packets from the nodes to the BS using a Markov chain model, and show through numerical examples that when reception energy is taken into account, the incorporation of network coding offers reductions in energy use. The amount of achievable gains depends on the number of nodes in the network, the degree of asymmetry in channel conditions experienced by different nodes, and the relative difference between transmitting and receiving power at the nodes. We also demonstrate the compatibility of the proposed scheme with the IEEE 802.15.6 WBAN standard by describing ways of incorporating network coding into systems compliant to the standard. For a wireless relay channel, we explore the strategic use of network coding according to both throughput and energy metrics. In the relay channel, a single source communicates to a single sink through the aid of a half-duplex relay. The fluid flow model is used to describe the case where both the source and the relay are coding, and Markov chain models are proposed to describe packet evolution if only the source or only the relay is coding. Although we do not attempt to explicitly categorize the optimal network coding strategies in the relay channel under different system parameters, we provide a framework for deciding whether and where to code, taking into account of throughput maximization and energy depletion constraints.
by Xiaomeng Shi.
Ph.D.
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Kim, Anthony Eli. "On network coding capacity : matroidal networks and network capacity regions." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62657.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 68-70).
One fundamental problem in the field of network coding is to determine the network coding capacity of networks under various network coding schemes. In this thesis, we address the problem with two approaches: matroidal networks and capacity regions. In our matroidal approach, we prove the converse of the theorem which states that, if a network is scalar-linearly solvable then it is a matroidal network associated with a representable matroid over a finite field. As a consequence, we obtain a correspondence between scalar-linearly solvable networks and representable matroids over finite fields in the framework of matroidal networks. We prove a theorem about the scalar-linear solvability of networks and field characteristics. We provide a method for generating scalar-linearly solvable networks that are potentially different from the networks that we already know are scalar-linearly solvable. In our capacity region approach, we define a multi-dimensional object, called the network capacity region, associated with networks that is analogous to the rate regions in information theory. For the network routing capacity region, we show that the region is a computable rational polytope and provide exact algorithms and approximation heuristics for computing the region. For the network linear coding capacity region, we construct a computable rational polytope, with respect to a given finite field, that inner bounds the linear coding capacity region and provide exact algorithms and approximation heuristics for computing the polytope. The exact algorithms and approximation heuristics we present are not polynomial time schemes and may depend on the output size.
by Anthony Eli Kim.
M.Eng.
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Ahmed, Ebad. "Delay gains from network coding in wireless networks." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41253.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.
Includes bibliographical references (p. 73-77).
We consider a single-hop cellular wireless system with a single source (base station) broadcasting a stream of incoming files to multiple receivers over stochastic time-varying channels with non-zero erasure probabilities. The base station charges a price per receiver per file with the aim of maximizing its profit. Customers who wish to transmit files to the receivers decide to enter the system based on the price, the queuing delay, and the utility derived from the transaction. We look at network coding and scheduling as possible strategies for file transmission, and obtain approximate characterizations of the optimal customer admission rate, optimal price and the optimal base-station profit as functions of the first and second moments of the service time processes under mild assumptions. We show that network coding leads to significant gains in the base station profits as compared to scheduling, and also demonstrate that the optimal network coding window size is highly insensitive to the number of receivers, which suggests that pricing and coding decisions can be decoupled. We also investigate the behavior of network coding in the case where the number of receivers is sufficiently large, and derive scaling laws for the asymptotic gains from network coding. We subsequently propose a way to extend our analysis of single-source, multiple-receiver systems to multiple-source, multiple-receiver systems in general network topologies and obtain explicit characterizations of the file download completion time under network coding and scheduling, also taking into account the effects of collisions and interference among concurrent packet transmissions by two or more sources.
(cont.) Our formulation allows us to model multi-hop networks as a series of single-hop multiple-source, multiple-receiver systems, which provides a great deal of insight into the workings of larger and denser multi-hop networks such as overlay networks and peer-to-peer systems, and appears to be a promising application of network coding in such networks in the future.
by Ebad Ahmed.
M.Eng.
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Mak, Wai Y. "Ad Hoc Network Architecture for Multi-Media Networks." Thesis, Monterey California. Naval Postgraduate School, 2007. http://hdl.handle.net/10945/2988.

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The desire for more intelligence in the battlefield has given rise to the idea of routing video images over wireless sensor networks. This would apprise combat decision makers with actual images of battlefield developments and allow them to make sound decisions. To achieve this objective, the characteristics of video traffic must be studied and understood. This thesis focuses on evaluating the possibility of routing video images over a wireless sensor network. Video traffic is modeled and simulations are performed via the use of the Sun Small Programmable Object Technology (Sun SPOT) Java development kits configured in three different network topologies: the star topology, binary tree topology and chain topology. It is known that video traffic is self similar and can be obtained by aggregating a large number of On-Off message sources. Hence, an On-Off model using Pareto distribution function is used to model video traffic over the network. In this thesis four self-similar shaping parameters, i.e., alpha(On) = 1.2, 1.4, 1.7 and 1.9 are used in the simulations. The performance of each topology is evaluated based on parameters like mean throughput, mean interarrival time, mean packet drop, and mean delay.
Singapore Armed Forces author.
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Masood, Syed Haani. "Distribution of files using network-coding in opportunistic networks." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106560.

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The immense growth in mobile data usage has placed mobile operators in a challenging position. User experience is threatened to degrade due to network capacity issues. The route towards network upgrades is an expensive one especially due to the high licensing fees attached to spectrum acquisition. We propose a scheme based on community identification for distributing large files to subscribers using opportunistic communication. The scheme is able to offload large files from the cellular network and without having to invest in any infrastructure. The cellular network initially seeds the file to the most central subscriber in each community which is then spread to all subscribers via opportunistic contacts. Network coding is utilized for the opportunistic exchange of file packets between subscribers. We show that seeding the file in each community is important to ensure better file delivery times and also reduces the overhead of the number of packet exchanges required during file dissemination. Our scheme also provides incentives for influential subscribers in the network which contribute more towards the opportunistic dissemination of file.
L'immense croissance de l'utilisation des données mobiles a placé les opérateurs mobiles dans une position difficile. L'expérience utilisateur est menacée de se dégrader en raison de problèmes de capacité du réseau. La route vers la mise à niveau du réseau est coûteuse en particulier en raison des frais de licence élevés attachés à l'acquisition du spectre. Nous proposons un schéma basé sur l'identification communautaire pour la distribution de gros fichiers à des abonnés en utilisant la communication opportuniste. Le système est capable de se décharger de gros fichiers sur le réseau cellulaire et sans avoir à investir dans n'importe quelle infrastructure. Le réseau cellulaire d'abord les graines du fichier à l'abonné la plus centrale dans chaque communauté, qui est ensuite étendue à tous les abonnés via des contacts opportunistes. Réseau de codage est utilisé pour l'échange de paquets de fichiers opportunistes entre les abonnés. Nous montrons que l'ensemencement du fichier dans chaque communauté est important pour assurer une meilleure délais de livraison du fichier et réduit également la surcharge du nombre d'échanges de paquets nécessaires pendant la diffusion de fichiers. Notre programme prévoit également des incitations pour les abonnés influents dans le réseau qui contribuent davantage vers la diffusion opportuniste de fichier.
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Books on the topic "Electrical Networks"

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Electrical networks. London: E. Arnold, Division of Hodder & Stoughton, 1990.

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Hadjsaïd, Nouredine, and Jean-Claude Sabonnadi`re, eds. Electrical Distribution Networks. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118601280.

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Infinite electrical networks. Cambridge: Cambridge University Press, 1991.

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Electrical distribution networks. London: ISTE, 2011.

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Prévé, Christophe. Protection of Electrical Networks. London, UK: ISTE, 2006. http://dx.doi.org/10.1002/9780470612224.

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Shlomo, Karni. Analysis of electrical networks. New York: Wiley, 1986.

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Analysis of electrical networks. New York: Wiley, 1986.

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Shlomo, Karni. Analysis of electrical networks. New York: Wiley, 1986.

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Lyubarskiy, Yuriy, and Aleksandr Hrennikov. Intelligent electrical networks: computer support for dispatching solutions. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1134516.

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For" smart " electric networks, intelligent software tools that perform new functions and increase the level of computer support for dispatching solutions are considered. Given that one of the goals of building "smart" networks is to ensure recovery after accidents, the main focus of the textbook is on the problems of diagnosing emergency situations, intelligent monitoring of the state of electrical networks, and planning for the post-accident restoration of power supply. A new type of software simulator for dispatchers of electrical networks — a simulator for analyzing emergency situations-is considered in detail. The theoretical material is accompanied by many examples in the form of protocols for the operation of real intelligent systems. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students of electric power specialties, managers and specialists of operational services of enterprises of power systems, electric and distribution networks and power stations, branches of PJSC ROSSETI, PJSC FGC UES, as well as students of advanced training courses.
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Narayanan, H. Submodular functions and electrical networks. Amsterdam: Elsevier, 1997.

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Book chapters on the topic "Electrical Networks"

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Bollobás, Béla. "Electrical Networks." In Modern Graph Theory, 39–66. New York, NY: Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-0619-4_2.

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Bloch, Ingram. "Electrical Networks." In The Physics of Oscillations and Waves, 104–19. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4899-0050-0_7.

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Berns, Karsten, Alexander Köpper, and Bernd Schürmann. "Electrical Networks." In Lecture Notes in Electrical Engineering, 19–43. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65157-2_3.

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Seshadri, V. "Electrical networks." In The Inverse Gaussian Distribution, 198–202. New York, NY: Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-1456-4_12.

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Zemanian, Armen H. "Transfinite Electrical Networks." In Transfiniteness, 115–55. Boston, MA: Birkhäuser Boston, 1996. http://dx.doi.org/10.1007/978-1-4612-0767-2_5.

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Hsu, Yuan-Yih, and Chien-Chun Yang. "Electrical Load Forecasting." In Applications of Neural Networks, 157–89. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4757-2379-3_7.

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Kories, Ralf, and Heinz Schmidt-Walter. "Networks at Variable Frequency." In Electrical Engineering, 192–207. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55629-6_5.

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Loebl, Martin. "Trees and electrical networks." In Discrete Mathematics in Statistical Physics, 51–64. Wiesbaden: Vieweg+Teubner, 2010. http://dx.doi.org/10.1007/978-3-8348-9329-1_3.

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Pahwa, S., M. Youssef, and C. Scoglio. "Electrical Networks: An Introduction." In Understanding Complex Systems, 163–86. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03518-5_8.

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Walrand, Jean. "Networks: A." In Probability in Electrical Engineering and Computer Science, 71–92. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-49995-2_5.

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AbstractSocial networks connect people and enable them to exchange information. News and rumors spread through these networks. We explore models of such propagations. The technology behind social networks is the internet where packets travel from queue to queue. We explain some key results about queueing networks.Section 5.1 explores a model of how rumors spread in a social network. Epidemiologists use similar models to study the spread of viruses. Section 5.2 explains the cascade of choices in a social network where one person’s choice is influenced by those of people she knows. Section 5.3 shows how seeding the market with advertising or free products affects adoptions. Section 5.4 studies a model of how media can influence the eventual consensus in a social network. Section 5.5 explores the randomness of the consensus in a group. Sections 5.6 and 5.7 present a different class of network models where customers queue for service. Section 5.6 studies a single queue and Sect. 5.7 analyzes a network of queues. Section 5.8 explains a classical optimization problem in a communication network: how to choose the capacities of different links. Section 5.9 discusses the suitability of queueing networks as models of the internet. Section 5.10 presents a classical result about a class of queueing networks known as product-form networks.
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Conference papers on the topic "Electrical Networks"

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Luksa, Jolanta, Vivita Pukite, and Maris Virkavs. "EVALUATION OF ELECTRICAL NETWORKS IN LAND PROPERTIES IN LATVIA." In 9th SWS International Scientific Conferences on SOCIAL SCIENCES - ISCSS 2022. SGEM WORLD SCIENCE, 2022. http://dx.doi.org/10.35603/sws.iscss.2022/s15.128.

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Electricity production takes place in facilities where the maximum technical, economic, and ecological effect can be obtained. Electricity is delivered to consumers using transmission and distribution electrical networks. In the territory of Latvia, the total length of electric network lines in 2021 was 98,032 km, ensuring safe electricity supply to 1.1 million objects. Electric networks cross land properties and occupy certain land areas. In 2021, 1,032,177 land units were registered in Latvia. So, on average, there are 0.09 km of electric network lines per unit of land. In the case of private property, construction must be coordinated with the landowner. The article gives concentrated historical information about the dynamics of the construction of electrical networks in Latvia from the 20th century beginning to the present, linking it to land rights. It is concluded that the intensive construction of electric networks in Latvia was started already during the first independent state of Latvia until 1940, but the existing distribution network drawing was created during the Soviet period until 1990. Over the past 30 years, the total length of electrical networks has not changed significantly, due to structural changes in the national economy. Currently, 1.8% of the total length of the distribution network is renewed on average every year. To balance the operation of electrical networks and the interests of landowners, a new institute of land rights - the protective belt - has been created. Materials, literature and binding normative documents of the Latvian State Historical Archive, Energy Museum are used in the research.
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Ji, Philip N. "Hybrid Optical-Electrical Data Center Networks." In Photonic Networks and Devices. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/networks.2016.nem3b.3.

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Zaitsev, Ievgen O., Igor V. Blinov, Victorii O. Bereznychenko, and Serhiy A. Zakusilo. "Electrical Transmission Line Damage Identification System for Distribution Electrical Networks." In 16th IC Measurement and Control in Complex Systems. Vinnytsia: VNTU, 2022. http://dx.doi.org/10.31649/mccs2022.21.

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In the paper shows, that one of the important directions of the development of the electric power industry both in the world and in Ukraine is the improvement and construction of electric power networks and systems according to the Smart Grid concept. The main idea of such systems is a reliable, energy-efficient and high-quality energy supply, which based on the growing role of management as a leading factor in the innovative development of electric power and the construction of high-performance information and computing infrastructure. One of the main components of Smart Grid is the diagnosis of emergency modes and damage monitoring. This is because damage to electrical networks affects the quality and reliability of electricity supply to consumers. Therefore, the task of quickly and accurately determining the place of damage is important. The effective solution of this problem gives a significant economic effect due to the reduction of power supply interruptions, the reduction of transport costs for bypassing electrical networks, and the minimization of the total time for the organization of repair and restoration works. It shown that one of the ways to increase efficiency is the use of means of identifying emergency conditions in sections of both cable and overhead electrical networks. A diagram of the location of damage indicators on the section of the electrical distribution network presented, which allows determining the direction of the search for the location of the damage. A comparative analysis of current measuring transformers of optical and electromagnetic type carried out. It shown that a significant number of advantages of optical measuring current transformers, which can be used in damage indicators, can be provided by measuring current transformers of the electromagnetic type. It is shown that in order to ensure the creation of a damage indicator based on the Smart Grid concept, which allows to reduce the time of searching for the cause and location of an emergency situation to a minimum, as well as to ensure connection to operating overhead and cable lines without removing voltage by connecting the output of the secondary winding of the measuring current transformer of the detachable design to the measuring converters directly placed near the current measuring transformers with the help of a mechanical spring fastener. A block diagram of a specialized information and measurement system with a damage indicator was created, taking into account the requirements of the Smart Grid concept, which allows to reduce the time of searching for the cause to a minimum.
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Cross, J. D., and R. Hartshorn. "My Electric Avenue: Integrating Electric Vehicles into the Electrical Networks." In 6th Hybrid and Electric Vehicles Conference (HEVC 2016). Institution of Engineering and Technology, 2016. http://dx.doi.org/10.1049/cp.2016.0972.

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Papallo, Thomas. "Networks in a network, communications in electrical distribution." In 2013 IEEE Petroleum and Chemical Industry Technical Conference (PCIC 2013). IEEE, 2013. http://dx.doi.org/10.1109/pcicon.2013.6666043.

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Krane, Christian, and Hans-Jurgen Haubrich. "Evaluation of the network structure of electrical transmission networks." In 2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies. IEEE, 2008. http://dx.doi.org/10.1109/drpt.2008.4523518.

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Zhao, Sicheng, and Zuqing Zhu. "Network Service Reconfiguration in Hybrid Optical/Electrical Datacenter Networks." In 2020 International Conference on Optical Network Design and Modeling (ONDM). IEEE, 2020. http://dx.doi.org/10.23919/ondm48393.2020.9133032.

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Bohm, V., A. Popelka, and B. Sadecky. "Synchronous measurement in electrical networks." In 18th International Conference and Exhibition on Electricity Distribution (CIRED 2005). IEE, 2005. http://dx.doi.org/10.1049/cp:20051145.

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Yaghoti, A. A., M. Parsa, and V. J. Majd. "Electrical distribution networks state estimation." In 18th International Conference and Exhibition on Electricity Distribution (CIRED 2005). IEE, 2005. http://dx.doi.org/10.1049/cp:20051342.

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Mehmeri, Victor Dantas, Juan Jose Vegas Olmos, and Idelfonso Tafur Monroy. "Software architecture for hybrid electrical/optical data center network." In 2016 17th International Telecommunications Network Strategy and Planning Symposium (Networks). IEEE, 2016. http://dx.doi.org/10.1109/netwks.2016.7751165.

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Reports on the topic "Electrical Networks"

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Divan, Deepakraj. Sensing Electrical Networks Securely & Economically (SENSE). Office of Scientific and Technical Information (OSTI), December 2022. http://dx.doi.org/10.2172/1908949.

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Du, Xinlong, and Jerome F. Hajjar. Structural Performance Assessment of Electrical Transmission Networks for Hurricane Resilience Enhancement. Northeastern University, August 2022. http://dx.doi.org/10.17760/d20460693.

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Hurricanes are one of the main causes for blackouts and related infrastructure damage in the United States. Electrical transmission towers, which are key parts of the electrical transmission networks, are vulnerable to high wind speeds during storms. Collapse of transmission towers may lead to a loss of functionality of transmission lines. This research focuses on regional analysis of electrical transmission networks under hurricane hazards through developing beam elements for analyzing transmission towers, selection of hurricane wind records that incorporate uncertainty quantification, generating collapse fragility curves for transmission towers, and regional damage assessment of transmission networks.
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Chen, Wai-Kai. On Broadband Matching of Multiport Electrical Networks with Applications. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada194224.

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Beskok, Ali, Michael Bevan, Dimitris Lagoudas, Zoubeida Ounaies, Pradipkumar Bahukudumbi, and William Everett. Reversible Control of Anisotropic Electrical Conductivity using Colloidal Microfluidic Networks. Fort Belvoir, VA: Defense Technical Information Center, April 2007. http://dx.doi.org/10.21236/ada482538.

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Hossain, Niamat Ullah Ibne, Raed Jaradat, Seyedmohsen Hosseini, Mohammad Marufuzzaman, and Randy Buchanan. A framework for modeling and assessing system resilience using a Bayesian network : a case study of an interdependent electrical infrastructure systems. Engineer Research and Development Center (U.S.), April 2021. http://dx.doi.org/10.21079/11681/40299.

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This research utilizes Bayesian network to address a range of possible risks to the electrical power system and its interdependent networks (EIN) and offers possible options to mitigate the consequences of a disruption. The interdependent electrical infrastructure system in Washington, D.C. is used as a case study to quantify the resilience using the Bayesian network. Quantification of resilience is further analyzed based on different types of analysis such as forward propagation, backward propagation, sensitivity analysis, and information theory. The general insight drawn from these analyses indicate that reliability, backup power source, and resource restoration are the prime factors contributed towards enhancing the resilience of an interdependent electrical infrastructure system.
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Knox, Hunter Anne, Jonathan Ajo-Franklin, Timothy Johnson, Joseph Morris, Mark C. Grubelich, Stephanie James, Alex Rinehart, et al. Imaging Fracture Networks Using Joint Seismic and Electrical Change Detection Techniques - Final Report. Office of Scientific and Technical Information (OSTI), February 2017. http://dx.doi.org/10.2172/1494179.

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De Crescenzi, Maurizio. 3D Carbon Nanotube Networks as Mechanical, Electrical and Photovoltaic Transducer and Superhydrophobic Filter. Fort Belvoir, VA: Defense Technical Information Center, June 2015. http://dx.doi.org/10.21236/ada621229.

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Stojanovic, Vladimir, and Krste Asanovic. Analysis and Design of Manycore Processor-to-DRAM Opto-Electrical Networks with Integrated Silicon Photonics. Fort Belvoir, VA: Defense Technical Information Center, December 2009. http://dx.doi.org/10.21236/ada511353.

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Modlo, Yevhenii O., Serhiy O. Semerikov, Ruslan P. Shajda, Stanislav T. Tolmachev, and Oksana M. Markova. Methods of using mobile Internet devices in the formation of the general professional component of bachelor in electromechanics competency in modeling of technical objects. [б. в.], July 2020. http://dx.doi.org/10.31812/123456789/3878.

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The article describes the components of methods of using mobile Internet devices in the formation of the general professional component of bachelor in electromechanics competency in modeling of technical objects: using various methods of representing models; solving professional problems using ICT; competence in electric machines and critical thinking. On the content of learning academic disciplines “Higher mathematics”, “Automatic control theory”, “Modeling of electromechanical systems”, “Electrical machines” features of use are disclosed for Scilab, SageCell, Google Sheets, Xcos on Cloud in the formation of the general professional component of bachelor in electromechanics competency in modeling of technical objects. It is concluded that it is advisable to use the following software for mobile Internet devices: a cloud-based spreadsheets as modeling tools (including neural networks), a visual modeling systems as a means of structural modeling of technical objects; a mobile computer mathematical system used at all stages of modeling; a mobile communication tools for organizing joint modeling activities.
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Tarasenko, Rostyslav O., Svitlana M. Amelina, and Albert A. Azaryan. Integrated testing system of information competence components of future translators. [б. в.], July 2020. http://dx.doi.org/10.31812/123456789/3879.

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The article deals with the diagnosis of the formation of the information competence components of translators through testing. The use of testing to determine the level of formation of the information-thematic component of the information competence of translators is demonstrated. It has been established that one of the ways to form the information-thematic component of information competence in the aspect of studying terminology can be the use of thematic networks. The development of a thematic network is shown on the example of the thematic network “Electrical equipment”. The stages of test control, which are consistent with the logic of the organization of the educational process and the process of forming the information competence of the future translator according to the scheme of the developed thematic network, have been determined. These stages are the current, thematic, modular, final testing. The main types of test tasks are defined, the combination of which allows diagnosing the level of formation of the information-thematic component of students’ information competence. Criteria and principles for the selection of test tasks for each of the testing stages are proposed. The ratio of test tasks of different types and complexity at the determined testing stages has been developed. The results of an experimental study on the diagnosis of the formation of the information-thematic component of the information competence of future translators by applying the developed integrative testing system using the Moodle platform are presented.
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