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Thematische Bibliographien / Point de relai / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Point de relai“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

Zuletzt aktualisiert am 31. Juli 2025

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1

Umayya, Ines Sastre, Muhamad Milchan, Hendy Briantoro, and Yoedy Moegiharto. "Performance Analysis Of The Energy Harvesting Techniques In Cooperative Communication Systems of NBIoT Devices With Amplify And Forward (AF) Relaying Protocol." Elinvo (Electronics, Informatics, and Vocational Education) 7, no. 2 (2023): 127–34. http://dx.doi.org/10.21831/elinvo.v7i2.50810.

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This study examines the system’s performance with implementation of the energy harvesting (EH) techniques at source node, S and relay node, R. The RF signals which are used to energy harvesting proccess are broadcasted by destination node, D. The information signals from S are sent to D via a R in a cooperative communication framework. The R uses the amplify and forward (AF) protocol to forward the received signal from S to D. We propose a network system which contain of three femto cells, and an access point of each femto cells work as a relay (R), in a macro cell with a base station or eNB a

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Charef, Eddine Kaouadji, and Hichem Boudjemàa Bachir. "ASSEOIR SA LÉGITIMITÉ VIA LA JUSTIFICATION ET À TRAVERS LES MÉDIAS : L'INTERVIEW DU PRÉSIDENT ALGÉRIEN ABDELMADJID TEBBOUNE AU JOURNAL « LE POINT »." Studii de gramatică contrastivă, no. 38 (December 24, 2022): 112–24. https://doi.org/10.5281/zenodo.7476257.

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<em>Dans un monde où l’information fuse à tout va et dans lequel la communication détient un rôle privilégié, être légitime devient vitale pour tout type de discours dans les diverses sphères d’échange. Nous tentons lors de ce travail de nous intéresser à la légitimité présidentielle et aux moyens linguistiques qui la servent dans le discours politique par le biais du relai médiatique. Il nous parait pertinent de revenir sur la mise en place d’un discours légit

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Guo, Laigong, Xiaolong Li, Xinkang Shi, Long Ma, and Changna Guo. "Reflection Propagation Law of Electromagnetic Waves in U-Shaped Roadway." Applied Sciences 15, no. 3 (2025): 1460. https://doi.org/10.3390/app15031460.

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To address the complex and space-constrained characteristics of underground coal mine roadways, this study proposes an electromagnetic wave reflection model based on the mirror image method. A U-shaped roadway model was designed and a relay node was established at the center of the roadway to simplify calculations. The point normal vector method was used to calculate the equations and boundary ranges of eight reflection planes. The valid reflection paths were determined by calculating the mirror points, counting the number of reflection lines, and evaluating their validity. The sensitivity of

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Voloshko, A. V., and V. V. Shevchuk. "TESTING OF ELECTRICAL EQUIPMENT FOR IMMUNITY TO VOLTAGE FAILURES, SHORT-TERM INTERRUPTIONS AND VOLTAGE CHANGES." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2024, no. 68 (2024): 50–56. http://dx.doi.org/10.15407/publishing2024.68.050.

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The article examines the testing of electrical equipment for immunity to voltage dips, short-term interruptions, and voltage changes. Special attention is paid to the influence of the starting point of the dip on the sensitivity of electrical equipment, as well as to the study of the resistance of the electromagnetic relay to voltage dips, phase angle jumps, and the starting and ending points of dips. The reaction mechanism of the electromagnetic relay to a voltage drop, its sensitivity to a change in frequency, the presence of harmonic distortions and changes in the nominal value of the volta

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Chen, Zhaohui, Xiaobing Ding, Mingjun Xue, and Hao Zhang. "Simulation Analysis of Relay Protection Action and Weak Point Adaptability Under Non Preset Operating Conditions of Complex Large Power Grid." Journal of Nanoelectronics and Optoelectronics 17, no. 11 (2022): 1440–45. http://dx.doi.org/10.1166/jno.2022.3339.

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In order to improve the protection performance of relay protection devices in complex large-scale power grid, a simulation analysis method of relay protection action and weak point adaptability under non preset operating conditions of complex large-scale power grid is proposed. In this method, pscad/emtdc simulation software is used to establish the simulation models of zero sequence and negative sequence directional elements, distance elements and longitudinal current differential elements of relay protection devices. Under the non preset working conditions of complex large power grid, the DC

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Simon, Paul M., and Scott Graham. "Extending the Quality of Secure Service Model to Multi-Hop Networks." Journal of Cybersecurity and Privacy 1, no. 4 (2021): 793–803. http://dx.doi.org/10.3390/jcp1040038.

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Rarely are communications networks point-to-point. In most cases, transceiver relay stations exist between transmitter and receiver end-points. These relay stations, while essential for controlling cost and adding flexibility to network architectures, reduce the overall security of the respective network. In an effort to quantify that reduction, we extend the Quality of Secure Service (QoSS) model to these complex networks, specifically multi-hop networks. In this approach, the quantification of security is based upon probabilities that adversarial listeners and disruptors gain access to or ma

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Gong, Wen Tao. "The Design of Multi-Protocol Network Based on Point-to-Point Protocol and Frame Relay." Advanced Materials Research 936 (June 2014): 2293–97. http://dx.doi.org/10.4028/www.scientific.net/amr.936.2293.

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Local area network and wide area network are different network protocols, small and medium enterprises due to the geographical distribution of discrete and interface diversity, leading to its needs to be compatible with different network protocols, it is difficult to use a single network protocol to realize network architecture, and due to the ipv4 address scarcity, making its application or maintenance cost greatly increased, based on this, this paper presents the design of multi-protocol network architecture based on point-to-point protocol and frame relay, and with the advantages of the rou

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Sautreau, Jean-Michel, André Quéhen, and Pascale Portenart. "Sport scolaire et situation de handicap, point de vue de l'USEP." Reliance 24, no. 2 (2007): 58. http://dx.doi.org/10.3917/reli.024.0058.

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9

Kamiyama, Yasuhiko. "On the Level Set of a Function with Degenerate Minimum Point." International Journal of Mathematics and Mathematical Sciences 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/493217.

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Forn≥2, letMbe ann-dimensional smooth closed manifold andf:M→Ra smooth function. We setminf(M)=mand assume thatmis attained by unique pointp∈Msuch thatpis a nondegenerate critical point. Then the Morse lemma tells us that ifais slightly bigger thanm,f-1(a)is diffeomorphic toSn-1. In this paper, we relax the condition onpfrom being nondegenerate to being an isolated critical point and obtain the same consequence. Some application to the topology of polygon spaces is also included.

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Hofreiter, Milan. "Relay Identification Using Shifting Method for PID Controller Tuning." Energies 14, no. 18 (2021): 5945. http://dx.doi.org/10.3390/en14185945.

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The aim of this study was to present a relay shifting method for relay feedback identification of dynamical systems suitable for PID controller tuning. The proposed technique uses a biased relay to determine frequency response points from a single experiment without any assumptions about a model transfer function. The method is applicable for open-loop stable, unstable, and integration processes, even with a delay, and regardless of whether they are oscillating or non-oscillating. The core of this technique was formed by the so-called relay shifting filter. In this study, the method was applie

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Wei, Z., H. Ma, X. Chen, and L. Liu. "AN IMPROVED PROGRESSIVE TRIANGULATION ALGORITHM FOR VEHICLE-BORNE LASER POINT CLOUD." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 13, 2017): 929–33. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-929-2017.

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The application of classical progressive triangulation filter algorithm for airborne point cloud is very successful, however, there is a big difference between airborne point cloud and vehicle-borne laser point cloud in spatial distribution, density and other aspects. In this paper, a lot of experiments are carried out to improve the filter algorithm for vehicle-borne laser point cloud, which includes as follows: (1) Establish grid index, such as 0.1 meters, only retain the lowest points, which can greatly reduce the number of suspected ground points, and the filtering efficiency is improved s

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Buratti, Marco, and Anita Pasotti. "More Heffter Spaces via Finite Fields." Journal of Combinatorial Designs 33, no. 5 (2025): 188–94. https://doi.org/10.1002/jcd.21974.

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ABSTRACTA Heffter space is a resolvable configuration whose points form a half‐set of an abelian group and whose blocks are all zero‐sum in . It was recently proved that there are infinitely many orders for which, given any pair with odd, a Heffter space exists. This was obtained by imposing a point‐regular automorphism group. Here, we relax this request by asking for a point‐semiregular automorphism group. In this way, the above result is extended also to the case even.

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Sheikh-Hosseini, Mohsen, Ghosheh Abed Hodtani, and Mohammad Molavi-Kakhki. "Capacity analysis of power line communication point-to-point and relay channels." Transactions on Emerging Telecommunications Technologies 27, no. 2 (2014): 200–215. http://dx.doi.org/10.1002/ett.2843.

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14

Dwi Cahyadi Jaya, I. Made, I. Gede Dyana Arjana, and A. A. Gede Maharta Pemayun. "STUDI KOORDINASI KERJA RELE DIFERENSIAL DAN RELE RESTRICTED EARTH FAULT SETELAH UPRATING PADA TRANSFORMATOR II DI GI KAPAL." Jurnal SPEKTRUM 5, no. 1 (2018): 49. http://dx.doi.org/10.24843/spektrum.2018.v05.i01.p07.

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The differential relay on the power transformer II in the Kapal Substation has a sensitivity setting of 30% to the nominal current of winding. Fault current that occurs below setting is not detected because the fault current has not reached the set limit. To overcome the fault current it is equipped with REF relay that has sensitivity below 30%. The analysis was performed by calculation method according to the relay setting manual. The results of sensitivity setting of REF relay is 382.75 A or fault point at 22.09% of the transformer winding, while the differential relay is 519.6 A or fault po

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Sung, Tien-Wen, Yuntao Xu, Xiaohui Hu, Chao-Yang Lee, and Qingjun Fang. "Optimizing data aggregation point location with grid-based model for smart grids." Journal of Intelligent & Fuzzy Systems 42, no. 4 (2022): 3189–201. http://dx.doi.org/10.3233/jifs-210881.

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With the construction of smart grids, smart meters are gradually being installed in every house. In order to transfer the user data collected by smart meters to the control center, it is necessary to transfer the data to the data aggregation point (DAP) before being transmitted to the control center. The numbers and locations of DAPs affect the communication quality and cost of the smart meter neighborhood network, and because smart meters rely on wireless technology to transmit data, their transmission range is limited. Thus, suburban and rural areas require a large number of DAP installation

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V., Preethy, and Thamizhmaran K. "Study of Relay Node." Journal of Emerging Trends in Electrical Engineering 5, no. 1 (2023): 28–32. https://doi.org/10.5281/zenodo.7812876.

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<em>This paper describes or says what is Relay node, Internal processing of relay nodes are discussed and their merits and demerits. This paper also tells how node act as relay point and what are the important of relay node. It also describe relay application and its limitations. It also tells about basic concept of relay node in LTE.</em>

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Apeksha, Jumde, and Ghatole Deepali. "Review Paper on Stationary Water Garbage Cleaning System." Research and Applications: Embedded System 3, no. 1 (2020): 3. https://doi.org/10.5281/zenodo.3749721.

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<em>In this assignment we created the remote operated river cleaning machine. The primary point of the undertaking is to diminish the labor, time utilization for cleaning the River. Automation assumes a significant job in mass manufacturing. Right now we have automated the activity of River cleaning with assistance of an engine and chain drive plan. Despite the fact that waste removal has involved worry for quite a few years, the principle issue has been taking gigantic extents because of development in population and industrialization, the two central points that add to waste generation. Thes

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Tan, K. K., T. H. Lee, S. Huang, K. Y. Chua, and R. Ferdous. "Improved critical point estimation using a preload relay." Journal of Process Control 16, no. 5 (2006): 445–55. http://dx.doi.org/10.1016/j.jprocont.2005.09.004.

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19

Lee, Sangku, Janghyuk Youn, and Bang Chul Jung. "Hybrid AF/DF Cooperative Relaying Technique with Phase Steering for Industrial IoT Networks." Energies 14, no. 4 (2021): 937. http://dx.doi.org/10.3390/en14040937.

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For the next generation of manufacturing, the industrial internet of things (IoT) has been considered as a key technology that enables smart factories, in which sensors transfer measured data, actuators are controlled, and systems are connected wirelessly. In particular, the wireless sensor network (WSN) needs to operate with low cost, low power (energy), and narrow spectrum, which are the most technical challenges for industrial IoT networks. In general, a relay-assisted communication network has been known to overcome scarce energy problems, and a spectrum-sharing technique has been consider

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Choi, Dae H., Byoung H. Jung, and Dan K. Sung. "Energy-aware path planning of an unmanned aerial vehicle acting as a communication relay for mobile ground nodes." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 3 (2018): 1124–32. http://dx.doi.org/10.1177/0954410017748685.

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We focus on energy-aware path planning of a small unmanned aerial vehicle-based relay which forwards the data received from a stationary remote station to a mobile access point. In order to reduce the communication power required for reliable communication between the unmanned aerial vehicle-based relay and access point, the unmanned aerial vehicle-based relay keeps track of the access point within a maximum allowable horizontal distance at a constant altitude, and thus the communication power of the unmanned aerial vehicle-based relay decreases as the horizontal distance decreases. In order t

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21

Pelège, Patrick. "Un point de vue anthropologique sur la question de la responsabilité dans le champ du handicap." Reliance 18, no. 4 (2005): 80. http://dx.doi.org/10.3917/reli.018.0080.

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Zainal, Andi Soraya, and Ahmad Firman. "FAKTOR-FAKTOR YANG MEMPENGARUHI MINAT MASYARAKAT KOTA MAKASSAR MEMILIH BISNIS MULTILEVEL MARKETING PT. MAHKOTA SUKSES INDONESIA." Nobel Management Review 3, no. 4 (2022): 674–86. http://dx.doi.org/10.37476/nmar.v3i4.3457.

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Penelitian ini bertujuan untuk mengetahui Untuk mengetahui pengaruh faktor modal kecil; resiko kecil; dapat diwariskan; komunitas positif; tanpa tutup point; reward tinggi, pengembangan kepribadian; kebebasan waktu; menambah relasi; pencapaian impian yang cepat dan support system secara parsial, Untuk mengetahui pengaruh faktor modal kecil; resiko kecil; dapat diwariskan; komunitas positif; tanpa tutup point; reward tinggi, pengembangan kepribadian; kebebasan waktu; menambah relasi; pencapaian impian yang cepat dan support system secara simultan terhadap minat masyarakat berbisnis MLM MSI di K

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Wei, Wei, and Xiao Ying Zhao. "Design of an Intelligent Point-to-Point Swing Arm Controller." Advanced Materials Research 706-708 (June 2013): 712–15. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.712.

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The point-to-point swing arm test is very important for large arms which have swing arm movement. Traditional point-to-point swing arm controller is relay control mode. The mode has many shortcomings, such as big volume, high power consumption, low stability, and so on. An intelligent point-to-point swing arm controller, using MCU as the control core, was designed for this reason. It was mainly composed of switch signal detecting module, solenoid valve drive module, USB storage interface module and MCU control module. According to the requirements of test, the controller was able to detect the

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Xie, Wenzhe, Jing Xiao, and Zhiguo Luo. "Existence of Solutions for Riemann-Liouville Fractional Boundary Value Problem." Abstract and Applied Analysis 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/540351.

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By using the method of upper and lower solutions and fixed point theorems, the existence of solutions for a Riemann-Liouville fractional boundary value problem with the nonlinear term depending on fractional derivative of lower order is obtained under the classical Nagumo conditions. Also, some results concerning Riemann-Liouville fractional derivative at extreme points are established with weaker hypotheses, which improve some works in Al-Refai (2012). As applications, an example is presented to illustrate our main results.

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Novriadi, Ari. "Perancangan Pengontrolan Overhead Crane Menggunakan Kabel dan Nirkabel Berbasis Arduino." JTT (Jurnal Teknologi Terpadu) 7, no. 2 (2019): 76–84. http://dx.doi.org/10.32487/jtt.v7i2.679.

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Overhead Crane is a heavy equipment which is very much found in various industries, factories, and workshops that are used to transport material. In general, controlling the Overhead Crane is operated by using a Push Button that is hung together with a cable on the top frame of the Overhead Crane. in this case, humans must also be able to maintain a distance when controlling Overhead Cranes that are working to transport memterials to avoid the use of Overhead Cranes. To provide security and comfort in the use of Overhead Cranes, the authors designed an Overhead Crane controller using Arduino b

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Chen, Hongsheng, and Ke Shi. "Connectivity Recovery Based on Boundary Nodes and Spatial Triangle Fermat Points for Three-Dimensional Wireless Sensor Networks." Sensors 24, no. 24 (2024): 7876. https://doi.org/10.3390/s24247876.

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In recent years, wireless sensor networks have been widely used, especially in three-dimensional environments such as underwater and mountain environments. However, in harsh environments, wireless sensor networks may be damaged and split into many isolated islands. Therefore, restoring network connectivity to transmit data effectively in a timely manner is particularly important. However, the problem of finding the minimum relay nodes is NP-hard, so heuristics methods are preferred. This paper presents a novel connectivity recovery strategy based on boundary nodes and spatial triangle Fermat p

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Triyulianti, Sari. "Pengaruh Neuromuscular Taping Dan Contract Relax Stretching Pada Kondisi Myofascial Pain Syndrome Otot Upper Trapezius Terhadap Penurunan Nyeri Leher." Jurnal Ilmiah Fisioterapi 5, no. 02 (2022): 34–38. http://dx.doi.org/10.36341/jif.v5i02.2688.

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ABSTRAK Latar Belakang: Myofacial trigger point syndrome otot upper trapezius adalah nyeri pada suatu titik/tempat hiperiritabel pada otot atau fascia yang disebabkan oleh adanya trauma ataupun pembebanan akibat dari kerja otot yang terjadi secara terus-menerus. Otot yang bekerja secara berlebihan akan menyebabkan kontraksi terus menerus yang akan menyebabkan otot menjadi tegang sehingga timbul spasme, kekakuan, adhesi serta penurunan sirkulasi darah yang merupakan pemicu timbulnya trigger point di otot yang menegang. Kondisi ini ditemukan pada posisi beraktivitas dengan posisi yang tida

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Gayet Bouzembil, Fatima. "Point relais éducatif et familial. Conseils et actions éducatives." Empan 103, no. 3 (2016): 93. http://dx.doi.org/10.3917/empa.103.0093.

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Hanin, Moulay Hicham, Mohamed Amnai, and Youssef Fakhri. "Enhanced Multi-Point Relay Selection Based on Fuzzy Logic." International Review on Computers and Software (IRECOS) 11, no. 6 (2016): 466. http://dx.doi.org/10.15866/irecos.v11i6.9064.

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Yu Xiaonan, 于笑楠, 佟首峰 Tong Shoufeng, 姜会林 Jiang Huilin, 张立中 Zhang Lizhong, 董岩 Dong Yan, and 白杨杨 Bai Yangyang. "Multi-Point Laser Communication Optical Relay Antenna Servo System." Acta Optica Sinica 35, no. 9 (2015): 0914001. http://dx.doi.org/10.3788/aos201535.0914001.

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Kamachkin, A. M., V. V. Evstaf'eva, and D. K. Potapov. "Sushchestvovanie edinstvennoy nepodvizhnoy tochki otobrazheniy, porozhdennykh mnogomernoy sistemoy s releynym gisterezisom." Дифференциальные уравнения 59, no. 7 (2023): 996–1000. http://dx.doi.org/10.31857/s0374064123070129.

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A multidimensional system of ordinary differential equations with relay hysteresis is considered. The system parameters are assumed to be such that there exists a family of continuous operators each of which maps some connected compact set into itself. In this case, the operator corresponds to a periodic orbit with an even number of switching points in the phase space of the system. For the operator family, a necessary and sufficient condition for the existence of a single fixed point is obtained.

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Reddy K, Sravan Kumar, Thanuja K. Thanuja K, Venkata Narasimha Reddy P, Venugopal K. Venugopal K, Thejasree T. Thejasree T, and Yugandhar Reddy Y. Yugandhar Reddy Y. "Varicose veins with Automated Treatment and Patient Health Monitoring." Journal of Electronics and Communication Engineering Research 11, no. 1 (2025): 08–14. https://doi.org/10.35629/5941-11010814.

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—The project titled "Varicose Veins with Automated Treatment and Patient Health Monitoring" focuses on developing an integrated system for monitoring and managing the health of patients with varicose veins. This system uses an Arduino Mega as the microcontroller unit (MCU) to collect and process data from various sensors. A Force sensor mimics the behavior of varicose veins in a prototype by simulating vein expansion under applied pressure. A Pulse Oximeter measures the patient’s pulse and oxygen saturation levels, while a Thermistor monitors body temperature at different points. The DHT11 sen

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Bang, Jonghyun, and Taehyoung Kim. "Low-Complexity Relay Selection for Full-Duplex Random Relay Networks." Mathematics 13, no. 6 (2025): 971. https://doi.org/10.3390/math13060971.

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Full-duplex relay networks have been studied to enhance network performance under the assumption that the number and positions of relay nodes are fixed. To account for the practical randomness in the number and locations of relays, this paper investigates full-duplex random relay networks (FDRRNs) where all nodes are randomly distributed following a Poisson point process (PPP) model. In addition, we propose a low-complexity relay selection algorithm that constructs the candidate relay set while considering the selection diversity gain. Our simulation results demonstrate that, rather than simpl

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Dong, Hua, Yaqi Song, and Li Yang. "Wide Area Key Distribution Network Based on a Quantum Key Distribution System." Applied Sciences 9, no. 6 (2019): 1073. http://dx.doi.org/10.3390/app9061073.

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The point-to-point quantum key distribution (QKD) system is limited by the transmission distance. So, the wide area QKD network with multiple endpoints is the research focus of this study. The relay-node scenario and key relay protocols provide the solutions to the QKD network. The early key relay protocols require the relay nodes to be reliable. Once the relay nodes become compromised, the whole network is insecure. In this paper, we extend the chain structure of the public-XOR(exclusive OR)-key scheme with two endpoints to the complex network with multiple endpoints. The relay nodes in our s

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Ge, L., G. J. Chen, and J. A. Chambers. "Relay Selection in Distributed Transmission Based on the Golden Code Using ML and Sphere Decoding in Wireless Networks." International Journal of Information Technology and Web Engineering 6, no. 4 (2011): 63–75. http://dx.doi.org/10.4018/jitwe.2011100105.

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The implementation of cooperative diversity with relays has advantages over point-to-point multiple-input multiple-output (MIMO) systems, in particular, overcoming correlated paths due to small inter-element spacing. A simple transmitter with one antenna may exploit cooperative diversity or space time coding gain through distributed relays. In this paper, similar distributed transmission is considered with the golden code, and the authors propose a new strategy for relay selection, called the maximum-mean selection policy, for distributed transmission with the full maximum-likelihood (ML) deco

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Kaplarchuk, E. A., S. V. Kozlov, and A. S. Shapkin. "Estimating the Orbital Parameters of a Nanosatellite When Measuring the Total Electron Content in the Ionosphere Based on the Retransmission of GPS Navigation Signals." Doklady BGUIR 22, no. 5 (2024): 62–70. http://dx.doi.org/10.35596/1729-7648-2024-22-5-62-70.

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A method for estimating the orbital parameters of a nanosatellite-relay, implemented by measuring the total electron content in the ionosphere based on relaying GPS navigation signals at frequencies of 150/400 MHz, is substantiated. The method involves estimating the Cartesian coordinates of the nanosatellite-relay based on the results of measurements of the total ranges “navigation satellite – nanosatellite relay – ground receiving point”, obtaining estimates of the orbital plane inclination angle and the longitude of the ascending node using the least squares method, and estimating the remai

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Ametova, Elnara. "Framework development for software functionality in Uzbekistan’s block route centralization system." E3S Web of Conferences 592 (2024): 07017. http://dx.doi.org/10.1051/e3sconf/202459207017.

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The article notes the relevance of the use of the latest scientific and technical developments, in transportation management justified by the need to increase the intensity of train traffic and ever-increasing freight turnover while maintaining the safety of train traffic. The solution of actual innovative tasks on the application of electronic devices in railway automation and telemechanics devices will allow to increase the level of transportation safety. Digital information processing and frame modeling techniques were used to achieve this goal. The method of microelectronic implementation

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Wang, Yang, Zhen Wang, Dezhi Kong, Lingyun Kong, and Yukun Qiao. "Multifarious Chaotic Attractors and Its Control in Rigid Body Attitude Dynamical System." Mathematical Problems in Engineering 2020 (November 20, 2020): 1–11. http://dx.doi.org/10.1155/2020/5958768.

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The Euler dynamical equation which describes the attitude motion of a rigid body will exhibit very complex dynamic behaviors under the action of different external torques. Many special types of new chaotic attractors are presented, including hidden attractors, double-body-double-core chaotic attractors, and single-body-three-core-tree-wing chaotic attractors. The position of equilibrium points in several typical cases of the Euler dynamic equation is solved, and the stability of linearized equation at each equilibrium point and its influence on the formation of the chaotic attractor are analy

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Yuan, Lina, Huajun Chen, and Jing Gong. "Interactive communication with clustering collaboration for wireless powered communication networks." International Journal of Distributed Sensor Networks 18, no. 2 (2022): 155014772110699. http://dx.doi.org/10.1177/15501477211069910.

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In this article, we propose a novel wireless powered communication network, which is composed of two multiple antennas hybrid access points and a series of distributed wireless devices. The two hybrid access points transmit downlink wireless energy to the wireless devices and receive uplink wireless messages from the wireless devices; meanwhile, the information of wireless devices nearer to their corresponding hybrid access point should be transmitted to the faraway hybrid access point. To improve the throughput performance of some wireless devices away from their corresponding hybrid access p

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Zhou, Qiang, Yunpeng Ma, Lin Bai, Jinho Choi, and Ying-Chang Liang. "Relay-Aided Multiple Access Scheme in Two-Point Joint Transmission." IEEE Transactions on Vehicular Technology 68, no. 6 (2019): 5629–41. http://dx.doi.org/10.1109/tvt.2019.2907747.

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41

Sharma, Vivek, Bashir Alam, and M. N. Doja. "A-OLSR: ANFIS based OLSR to select Multi point relay." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 1 (2019): 646. http://dx.doi.org/10.11591/ijece.v9i1.pp646-651.

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<span lang="EN-IN">The characteristics like dynamic topology, power consumption, mobility etc. may leads to affect the routing process of packet as it progresses from one node to another node. The energy of each node is very limited in MANET’s due to which it becomes an important parameter to be considered while selecting the route. The ‘Optimized Link State Routing Protocol’ (OLSR) does not consider node energy during Multipoint relay (MPR) selection process. This paper proposes an improvement of OLSR routing protocol named as A-OLSR protocol using node energy during its MPR process. Th

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Sharma, Vivek, Bashir Alam, and M. N. Doja. "A-OLSR: ANFIS based OLSR to select Multi point relay." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 1 (2019): 646–51. https://doi.org/10.11591/ijece.v9i1.pp646-651.

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The characteristics like dynamic topology, power consumption, mobility etc. may leads to affect the routing process of packet as it progresses from one node to another node. The energy of each node is very limited in MANET’s due to which it becomes an important parameter to be considered while selecting the route. The ‘Optimized Link State Routing Protocol’ (OLSR) does not consider node energy during Multipoint relay (MPR) selection process. This paper proposes an improvement of OLSR routing protocol named as A-OLSR protocol using node energy during its MPR process. The impro

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Xue, Bijie, Hongyan Xu, and Guojie Hu. "Research on stiffness matching of support structure of high-precision equipment on satellite." Journal of Physics: Conference Series 2827, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1742-6596/2827/1/012027.

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Abstract This paper takes the support structure of high-precision equipment on satellites as the research object, and combining it with the characteristics of an actual satellite platform, analyses the stiffness matching between the platform and the load mounting point represented by the axial connecting relay. On this basis, the support structure of two different types of installation points is quantitatively evaluated, the optimal configuration is selected through the analysis result, and the design improvement measures are proposed. It provides a new design idea for the support structure of

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Ngo, Minh Khoa, Huu Hieu Nguyen, and Thanh Viet Dinh. "A Study of SVC's Impact Simulation and Analysis for Distance Protection Relay on Transmission Lines." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1686–95. https://doi.org/10.11591/ijece.v7i4.pp1686-1695.

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This paper focuses on analyzing and evaluating impact of a Static Var Compensator (SVC) on the measured impedance at distance protection relay location on power transmission lines. The measured impedance at the relay location when a fault occurs on the line is determined by using voltage and current signals from voltage and current transformers at the relay and the type of fault occurred on the line. The MHO characteristic is applied to analyze impact of SVC on the distance protection relay. Based on the theory, the authors in this paper develop a simulation program on Matlab/Simulink software

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Wang, Yong, and Xiyuan Wang. "Satellite Network Transmission of Cooperative Relay Superimposed Signal Reconstructed in Spatial Dimension." Remote Sensing 15, no. 4 (2023): 919. http://dx.doi.org/10.3390/rs15040919.

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In order to save frequency resources, a new remote sensing satellite service can gradually adopt relay cooperation transmission to realize the same frequency and common channel transmission of multiple data. To solve the problem of mutual interference between messages, this study proposes a universal model of relay cooperative channel transmission, and the separation mechanism of heterogeneous signals for simultaneous unicast and multicast transmission is also studied. In this study, a signal space is used to reconstruct the degrees of freedom, and an orthogonalized spatial alignment direction

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Zhang, Lihua. "Development and Prospect of Chinese Lunar Relay Communication Satellite." Space: Science & Technology 2021 (April 27, 2021): 1–14. http://dx.doi.org/10.34133/2021/3471608.

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Relay communication satellites play a very important role on the lunar far side and pole areas exploration missions. Queqiao relay communication satellite was developed to provide relay communication support for the lander and the rover of Chang’e-4 mission landing on the far side of the Moon. From entering into the halo mission orbit around Earth-Moon libration point 2 on June 14, 2018, it has operated on the orbit more than thirty months. It worked very well and provided reliable, continuous relay communication support for the lander and the rover to accomplish the goals of Chang’e-4 lunar f

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Shilin, Alexei, Pavel Dikarev, and Serghei Dement’ev. "Intelligent System of Relay Protection of Electrical Network 6-10 kV with the Implementation of Automatic Correction of the Operation Set Point." Problems of the Regional Energetics, no. 3(59) (August 2023): 17–24. http://dx.doi.org/10.52254/1857-0070.2023.3-59.02.

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The purpose of the study is to develop the architecture and working algorithm of intelligent relay protection of an electrical network with an isolated neutral. “Intellectualization” of relay protection is necessary to increase its sensitivity and reliability. This problem is relevant due to the accident rate of overhead power lines and incorrect operation of traditional relays. This is due to the fact that the set point is not adjusted according to the deviation of the line parameters with changing environmental and load conditions. The purpose of the study is achieved by solving the followin

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Limaye, Sanjay S., and Irina D. Kovalenko. "Monitoring Venus and communications relay from Lagrange Points." Planetary and Space Science 179 (December 2019): 104710. http://dx.doi.org/10.1016/j.pss.2019.104710.

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Tobar-Rosero, Oscar A., John E. Candelo-Becerra, and Germán Zapata. "Performance Analysis of Overcurrent Protection in a Digital Substation with Process Bus." Sustainability 14, no. 13 (2022): 7958. http://dx.doi.org/10.3390/su14137958.

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The digitization of electrical substations brings great challenges for the commissioning of electrical protections, and interoperability tests must be performed with different equipment. Therefore, this work evaluates the response time of an electrical protection relay operating with sampled values in a digital substation with a process bus. A test scheme is proposed to emulate the process bus based on analyzing the main components in a digital substation with multi-vendor device interoperability. In addition, the delay times of the protection relay with the process bus are measured, consideri

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Xu, Yan Wen. "Design and Implementation of the Relay Gateway Driver Software Based on AudioCode Chip." Applied Mechanics and Materials 427-429 (September 2013): 2838–41. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.2838.

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In order to solve the problem of the PSTN network and IP network interconnection, in the study of digital relay server-driven software system architecture based on low-level driver software point of departure from the digital relay server, the proposed media and letter between the two networksso that the signaling conversion server communicate with each other, in order to achieve the signaling protocol conversion between the two networks; design of a digital relay server to complete media conversion between the two networks, the interconnection between two networks.

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