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Journal articles on the topic 'Guaranteed Transmission System'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Sugawara, Yoh, Tetsuya Miyashita, Yusuke Mizuno, et al. "Comparison between High- and Low-Cost Transmission of Tele-Anesthesia in Japan." Journal of Healthcare Engineering 2018 (June 11, 2018): 1–6. http://dx.doi.org/10.1155/2018/9615264.

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Background. We previously reported a tele-anesthesia system that connected Sado General Hospital (SGH) to Yokohama City University Hospital (YCUH) using a dedicated virtual private network (VPN) that guaranteed the quality of service. The study indicated certain unresolved problems, such as the high cost of constantly using a dedicated VPN for tele-anesthesia. In this study, we assessed whether use of a best-effort system affects the safety and cost of tele-anesthesia in a clinical setting. Methods. One hundred patients were enrolled in this study. We provided tele-anesthesia for 65 patients u

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Doi, H., Y. Serizawa, H. Tode, and H. Ikeda. "Simulation study of QoS guaranteed ATM transmission for future power system communication." IEEE Transactions on Power Delivery 14, no. 2 (1999): 342–48. http://dx.doi.org/10.1109/61.754072.

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Xiao, Mei Hua, Jie Tan, and Li Ke Zhuang. "The Research and Implementation of an Electronic Seal System Based on CAPICOM." Advanced Materials Research 734-737 (August 2013): 3228–33. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.3228.

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In order to guarantee the secure transmission and efficient authentication of electronic official document paper, this paper puts forward the design plan of the electronic seal system with the technologies of CAPICOM, SHA-1 and USBKey. The design plan implements document protection function with major forms of electronic signature, handwritten signature and keyboard notation. Examination result and analysis proves that the system can ensure the security of the seal and guaranteed the integrality, authentication and non-repudiation of the documents. The system has broad application potential in

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Filin, S. A., S. N. Moiseev, and M. S. Kondakov. "Fast and Efficient QoS-Guaranteed Adaptive Transmission Algorithm in the Mobile WiMAX System." IEEE Transactions on Vehicular Technology 57, no. 6 (2008): 3477–87. http://dx.doi.org/10.1109/tvt.2008.919930.

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Wang, Yali, Shuangxi Hong, and Junna Zhang. "Providing delay-guaranteed multicast transmission services for an SDN-based publish/subscribe system." China Communications 16, no. 12 (2019): 176–87. http://dx.doi.org/10.23919/jcc.2019.12.014.

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Zhu, Qixin, Kaihong Lu, Guangming Xie, and Yonghong Zhu. "Guaranteed Cost Fault-Tolerant Control for Networked Control Systems with Sensor Faults." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/549347.

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For the large scale and complicated structure of networked control systems, time-varying sensor faults could inevitably occur when the system works in a poor environment. Guaranteed cost fault-tolerant controller for the new networked control systems with time-varying sensor faults is designed in this paper. Based on time delay of the network transmission environment, the networked control systems with sensor faults are modeled as a discrete-time system with uncertain parameters. And the model of networked control systems is related to the boundary values of the sensor faults. Moreover, using

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Luo, Pu. "DLL-Based Receiver for High Speed Data Transmission." Advanced Materials Research 753-755 (August 2013): 2471–74. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2471.

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For modern high speed DAC, receiving data reliably from FPGA is a big challenge, data-independent skew is the major problem. usually system employ data clock while transmitting LVDS data from FPGA. then LVDS data is latched by delayed data clock which generated by DLL in chip. Because DLL has a negative feedback loop, system suffer small effect of PVT variations, robustness is guaranteed. The receiving circuits were implemented in a all-digital 0.18μm CMOS technology ,occupies 0.7 mm2 of area. It operates in the frequency range of 20 MHz~600 MHz.

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Shi, Zhiguang, Zongyu Zuo, and Hao Liu. "Backstepping control for gear transmission servo systems with unknown partially nonsymmetric deadzone nonlinearity." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 14 (2016): 2580–89. http://dx.doi.org/10.1177/0954406216639343.

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This paper deals with the output tracking control of gear transmission servo (GTS) systems in the presence of deadzone nonlinearity with nonsymmetric beak points and unknown parameters. A novel differentiable deadzone model with nonsymmetric break points is put forward, which greatly facilitates the control design for a class of mechanical systems in the presence of deadzone nonlinearity. A new smooth backstepping controller, based on the newly-developed model, is proposed for the nominal system. Then, guaranteed robust steady-state performance of the closed-loop system with parametric uncerta

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Ayyappan, Sonal, C. Lakshmi, and Varun Menon. "A Secure Reversible Data Hiding and Encryption System for Embedding EPR in Medical Images." Current Signal Transduction Therapy 15, no. 2 (2020): 124–35. http://dx.doi.org/10.2174/1574362414666190304162411.

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Background: Recent advances in medical associated technologies have drastically increased the amount of electronic medical records collected, stored and transferred through the network. Considering the significance and level of sensitivity of the collected medical data, the security of the transmitted data has become a very vital and challenging task for researchers. The protection of these medical images with embedded data is usually guaranteed using encryption or data hiding techniques. Conventional techniques that employ encryption or data hiding are often insecure and also time-consuming d

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Denisenko, V. V. "Analysis of the queue buffer transmitting device through the channel multiple access with guaranteed delivery of packets." Proceedings of the Voronezh State University of Engineering Technologies 80, no. 3 (2018): 70–73. http://dx.doi.org/10.20914/2310-1202-2018-3-70-73.

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The article deals with the modeling of the process of data transmission from sensors in the industrial production of vinyl acetate. The data packets are transferred from the sensors to the control system and the control effect is directed to the temperature regulators of the gas-vapor mixture, the vapor pressure of the refrigerant. oxygen consumption and return acetic acid consumption by industrial Ethernet protocols over a multiple access channel with carrier control and detection of CSMA / CD collisions (Carrier Sense Multiple Access with Collision Detection). The main bottleneck of the syst

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Luo, Xiao-Yuan, Mei-Jie Shang, Cai-Lian Chen, and Xin-Ping Guan. "Guaranteed cost active fault-tolerant control of networked control system with packet dropout and transmission delay." International Journal of Automation and Computing 7, no. 4 (2010): 509–15. http://dx.doi.org/10.1007/s11633-010-0534-4.

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12

Liu, Bing Qi, Hui Lan Jiang, and Jing Peng Wang. "Client-Side in Management System of Transmission Line Passage Protection Based on Android." Advanced Materials Research 986-987 (July 2014): 2139–42. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.2139.

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To overcome the shortcoming of lack of real-time in traditional latent troubles information management, a transmission line passage protection system (TLPPS) Android client-side is developed in this paper. Basing on Android mobile’s real-time communication and good development performance, Android client is used to record the information of latent trouble. Web Service is adopted to realize the wireless communication between client and server, then the real-time upload and updating is realized, thus improving the accuracy and making it possible for the administrator to put up with the advice of

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Tarn, Woei-Hwa, Jenhui Chen, and Chun-Liang Lee. "Fairness Consideration of Scheduling for Real-Time Services in 4G Systems." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/597173.

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In order to achieve higher resource utilization, the call admission control (CAC) will allow the number of connections into the system more than the system capacity can offer. However, the fairness problem will occur when these connections are real-time services. To solve this problem, in this paper, we propose a fair scheduling algorithm named contribution-based scheduling algorithm (CSA) for real-time polling service (rtPS) or guarantee bit rate (GBR) in the uplink direction in the forth-generation (4G) systems. In CSA, a mobile subscriber (MS) gains its contribution credit value at the end

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Wang, Fei, Guofang Gong, Yongfeng Qin, Chenchen Sun, and Huayong Yang. "A novel cutterhead cascade control strategy for hybrid-driving tunnel boring machines." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 234, no. 8 (2020): 922–36. http://dx.doi.org/10.1177/0959651819891607.

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The electro-hydraulic hybrid cutterhead driving system is a newly developed innovative cutterhead driving system of tunnel boring machine. Regulating the cutterhead rotational speed, balancing the driving load and the torque control of the hydraulic motors are three essential issues of the electro-hydraulic hybrid cutterhead driving system to be addressed. The conventional synchronization method focuses on pure rotational speed regulation only and therefore causes serious unbalanced driving torque phenomena in the cutterhead driving system. In this article, a cascade control scheme is proposed

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Semenenko, O., O. Vodchyts, V. Koverga, R. Lukash, and O. Lutsenko. "MODERN PROBLEMATICS AND ANALYSIS OF EFFICIENCY OF APPLICATION OF DIFFERENT APPROACHES TO DESTRUCTION OF INFORMATION ON MAGNETIC MEDIA." Collection of scientific works of Odesa Military Academy 2, no. 12 (2019): 154–64. http://dx.doi.org/10.37129/2313-7509.2019.12.2.154-164.

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The introduction and active use of information transmission and storage systems in the Ministry of Defense (MoD) of Ukraine form the need to develop ways of guaranteed removal of data from media after their use or long-term storage. Such a task is an essential component of the functioning of any information security system. The article analyzes the problems of guaranteed destruction of information on magnetic media. An overview of approaches to the guaranteed destruction of information on magnetic media of different types is presented, and partial estimates of the effectiveness of their applic

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Kruglikov, Sergey V., and Alexey S. Kruglikov. "An A Priori Planning of Joint Motions for USV as a Problem of Guaranteed Control/Estimation." Applied Mechanics and Materials 494-495 (February 2014): 1110–13. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1110.

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Navigation and routes planning for a group of unmanned surface vessels (USV) jointly moving in complex environment, including circumvention of seashore and islands, are important applications of computer-based decision-making support systems. A group of objects as an open complex system includes several hierarchy levels and may be controlled by a decision-maker supported by information-analytical software and methodical maintenance. Planning, as a stage of management, includes an a priori phase guidance for all objects in the group, coordinated in both time and directions of approach to the ta

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17

Li, Gang Jun. "Adaptive Impulse Controller Design of Harmonic Drives System with Friction." Applied Mechanics and Materials 86 (August 2011): 543–46. http://dx.doi.org/10.4028/www.scientific.net/amm.86.543.

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The friction model with the effects of friction and transmission flexibility of harmonic drives system is used for adaptive impulse control design in precision control system. Experimental response based on a new pulse shape which is consisted of two harmonic expansions is studied, the first harmonic is the main pulse to drive the arm to move a displacement, the second harmonic has two functions: it enforces the main harmonic pulse in its first half that will help it to eliminate the dead zone, and provides a minus pulse in its second half to stop the arm motion quickly. An adaptive impulse fe

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Taratorkin, Alexander, Victor Derzhanskii, and Igor Taratorkin. "Stability of the dynamic shifting process in the vehicle transmission with the input shaper." MATEC Web of Conferences 211 (2018): 02007. http://dx.doi.org/10.1051/matecconf/201821102007.

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This paper investigates stability of the dynamic process of gear shift in the vehicle transmission with the input shapers (IS) taking in consideration uncertainty of the natural frequency of the mechanical system. The proposed control algorithm increases the stability of the researched system with variation of its elastic and inertial parameters. The control law with guaranteed asymptotic stability is obtained for full load of the vehicle when the all-wheel drive is turned on. The monitoring of the state and performance of the required parameters for the regulation of input shapers are tested

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Wang, Hongwei, Fangwen Tu, Guohui Feng, and Xin Ao. "Central Heating System Constrained Control with Input Delay Based on Neural Networks." Mathematical Problems in Engineering 2018 (November 19, 2018): 1–12. http://dx.doi.org/10.1155/2018/1714961.

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An output constrained control with input delay is proposed for a central heating system. Due to the delay of signal transmission and valves opening time, an input delay is considered into the system and an auxiliary system is employed to handle this issue by converting the delayed input into a delay-free one. Moreover, to ensure the output supply water temperature within a limited range, Barrier Lyapunov algorithm is involved to achieve desired control accuracy. Finally, external disturbance and model uncertainty are incorporated into the dynamic system and neural networks (NN) are trained in

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Ren, Meng Meng, Xiao Chang Ni, Bo Pang, Tong Li, and Zhen Ming Song. "Design of Wireless Data Transmission Module Based on ModBus Protocol." Advanced Materials Research 753-755 (August 2013): 2548–52. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2548.

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According to current technological situation that most of the existing Modbus networks are based on cable and the disadvantages of cable in bus architecture such as troubles during installation, much inconvenience in maintenance debugging and the potential safety hazard following high non-isolated, a design proposal based on Modbus digital transmission module is presented to realize the communication function without cable. During the design proposal, a wireless RF A7108 chip offered by SHENGKE electronic company is selected as the transmission carrier, which is followed by the transmit-receiv

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21

Chudnov, A., D. Kirik, and E. Ermakova. "Optimization of Code Parameters and Signal Processing Mode under Intentional Interference." Proceedings of Telecommunication Universities 5, no. 4 (2019): 79–86. http://dx.doi.org/10.31854/1813-324x-2019-5-4-79-86.

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In this article we study the analysis and optimization principles of parameters and the mode of use the error-correcting code in the information transmission system with a reverse channel, which functions under the influence of intentional interference, its structure can be selected from the position of violation (deterioration) of the system operating. We see the developed methodology for optimizing system parameters according to the criterion of the maximum guaranteed information transfer rate for interference classes with limited average power. An assessment of the efficiency gain provided

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Islam, Md Tahidul, Sithamparanathan Kandeepan, and Robin J. Evans. "Multi-Radio Based Rendezvous Technique for Heterogeneous Cognitive Radio Sensor Network." Sensors 21, no. 9 (2021): 2997. http://dx.doi.org/10.3390/s21092997.

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In a distributed cognitive radio (CR) sensor network, transmission and reception on vacant channels require cognitive radio nodes to achieve rendezvous. Because of the lack of adequate assistance from the network environment, such as the central controller and other nodes, assisted rendezvous for distributed CR is inefficient in a dynamic network. As a result, non-assisted blind rendezvous, which is unaware of its counterpart node, has recently led to a lot of interest in the research arena. In this paper, we study a channel rendezvous method based on prime number theory and propose a new mult

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23

Huang, Hongcheng, Wei Xiang, Yang Tao, Biao Liu, and Min Hu. "Relay-Assisted D2D Transmission for Mobile Health Applications." Sensors 18, no. 12 (2018): 4417. http://dx.doi.org/10.3390/s18124417.

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Relay-assisted Device-to-Device (D2D) communication, one of the important transmission modes in mobile health systems, can provide high transmission quality for servicing users at the edge of system coverage. However, the quality of the D2D relay communication is largely limited by the relay nodes. When a poor node is selected to assist the source node in the data transmission, it is likely to result in the loss of medical data and inaccurate transmission. Therefore, this paper focuses on how to select relay modes and relay nodes to improve the reliability of medical data transmission. Firstly

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Lazurik, Valentine, Nicolay Styervoyedov, and Natalia Varlamova. "Information processing psychodiagnostic system: designing and implementation." Eastern-European Journal of Enterprise Technologies 2, no. 9 (110) (2021): 45–54. http://dx.doi.org/10.15587/1729-4061.2021.230042.

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The reasons for the creation of a modern psychodiagnostic system are considered. The design and implementation of an information processing system using the structure of the reference model of the Internet of Things is proposed. The existing psychodiagnostic tools and a number of disadvantages are described. In the process of developing the system design, requirements were formed: three-dimensional representation of signals, remote control of the diagnostic process, data collection, transmission and storage on a remote server, processing of results, expert assessment. The main two tasks of the

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Zhang, Jinhuan, Jun Long, Guihu Zhao, and Hao Zhang. "Minimized Delay with Reliability Guaranteed by Using Variable Width Tiered Structure Routing in WSNs." International Journal of Distributed Sensor Networks 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/689504.

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Data collection should take reliability and delay into consideration. To address these problems, a novel variable width tiered structure routing scheme named variable width tiered structure routing (VWTSR) is proposed. The proposed VWTSR scheme integrates two core phases, namely, circular tiers and cells partition, and distributed in-network aggregation. The key idea of VWTSR is to partition the network into circular tiers with different widths and each tier is further partitioned into cells. Those cells that do not interfere with each other could simultaneously finish data aggregation by broa

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Gong, Ming De, Bo Tian, Yue Ning, and Wei Wei Li. "Research on ROI Image Processing Technology of Teleoperation Construction Robot Based on Trinocular Stereo Vision." Applied Mechanics and Materials 130-134 (October 2011): 2581–84. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2581.

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Digital image has a large quantity of image data and long time for transmitting. It affects the real-time of the teleoperation robot system. According to the basic principle of human eye identifying objects and image blurry processing, a new image processing method of simulating human eye range of interest (ROI) is proposed. The method uses the calibration algorithm of three-dimensional stereo target and the Gauss blurred principle. The non-ROI region is blurred to hierarchy for extracting the feature and measurement to finish the image processing tasks. The experimental results showed that th

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Zhang, S. B., Y. M. Zhang, and R. Kovacevic. "Noncontact Ultrasonic Sensing for Seam Tracking in Arc Welding Processes." Journal of Manufacturing Science and Engineering 120, no. 3 (1998): 600–608. http://dx.doi.org/10.1115/1.2830164.

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A novel seam tracking technology based on high frequency ultrasound is developed in order to achieve high accuracy in weld seam identification. The transmission efficiency of the ultrasound is critical for obtaining a sufficient echo amplitude. Since the transmission efficiency is determined by the difference in impedance between the piezoelectric ceramic and air, match layers are designed to optimize the transmission efficiency by matching impedance. Since the air impedance depends on the density and velocity of the ultrasound, which both depend on the temperature, the optimization has been d

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ACCOMINOTTI, OLIVIER. "London Merchant Banks, the Central European Panic, and the Sterling Crisis of 1931." Journal of Economic History 72, no. 1 (2012): 1–43. http://dx.doi.org/10.1017/s0022050711002427.

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The Central European panic of the spring 1931 is often presented as a cause of the sterling crisis of September. But what was the transmission channel? This article explores how the continent's financial troubles affected Britain's banking system. The freeze of Central European assets created a liquidity strain for London merchant banks because they had accepted (guaranteed) the commercial bills of German merchants. I use new balance sheet data to quantify this shock and explore how the liquidity crisis contributed to the sterling crisis. The evidence demonstrates that international contagion

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Qu, Gang, and Hao Yuan. "Automatic Voltage Control of Large-scale Synchronous Condensers in UHV-DC Converter Station." E3S Web of Conferences 236 (2021): 01001. http://dx.doi.org/10.1051/e3sconf/202123601001.

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Large-scale synchronous condenser can provide a powerful dynamic reactive power for the Ultra high-voltage (UHV) Direct Current (DC) transmission system. The dynamic characteristics of synchronous condenser ensure the reactive power support capability in the case of grid fault. In this paper, the control strategy and deployment of the synchronous condensers in East China Power Grid are presented. Taking converter station as an example, this paper introduces the main architecture of automatic voltage control (AVC) system, and the relationship between host computers and slave computers. In the s

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Зінченко, Ольга, Віктор Вишнівський, Юлія Березовська, and Петер Седлачек. "EFFICIENCY OF COMPUTER NETWORKS WITH SDN IN THE CONDITIONS OF INCOMPLETE INFORMATION ON RELIABILITY." Advanced Information Systems 5, no. 2 (2021): 103–7. http://dx.doi.org/10.20998/2522-9052.2021.2.14.

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The paper analyzes the effectiveness of computer networks with SDN in conditions of incomplete reliability information. In order to ensure the specified indicators of the reliability of the computer network, it is recommended to use their guaranteed estimates. To increase the level of security of information systems and introduce the concept of time reserve in the process of packet transmission, it is necessary to separate the functions of traffic transmission from management functions. This is the basic principle of SDN. When using SDN technology in computer networks, it is possible to enter

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You, Li, Wenjin Wang, and Xiqi Gao. "Energy-Efficient Multicast Precoding for Massive MIMO Transmission with Statistical CSI." Energies 11, no. 11 (2018): 3175. http://dx.doi.org/10.3390/en11113175.

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In this paper, we investigate energy-efficient multicast precoding for massive multiple-input multiple-output (MIMO) transmission. In contrast with most previous work, where instantaneous channel state information (CSI) is exploited to facilitate energy-efficient wireless transmission design, we assume that the base station can only exploit statistical CSI of the user terminals for downlink multicast precoding. First, in terms of maximizing the system energy efficiency, the eigenvectors of the optimal energy-efficient multicast transmit covariance matrix are identified in closed form, which in

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Gu, Xiaohui, Li Jin, Nan Zhao, and Guoan Zhang. "Energy-Efficient Computation Offloading and Transmit Power Allocation Scheme for Mobile Edge Computing." Mobile Information Systems 2019 (December 16, 2019): 1–9. http://dx.doi.org/10.1155/2019/3613250.

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Mobile edge computing (MEC) is considered a promising technique that prolongs battery life and enhances the computation capacity of mobile devices (MDs) by offloading computation-intensive tasks to the resource-rich cloud located at the edges of mobile networks. In this study, the problem of energy-efficient computation offloading with guaranteed performance in multiuser MEC systems was investigated. Given that MDs typically seek lower energy consumption and improve the performance of computing tasks, we provide an energy-efficient computation offloading and transmit power allocation scheme th

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Wang, Siyao, Xiaoming Tang, Li Deng, Hongchun Qu, Linfeng Tian, and Cheng Tan. "Predictive Control for Interval Type-2 Fuzzy System with Event-Triggered Scheme." Advances in Fuzzy Systems 2019 (July 8, 2019): 1–13. http://dx.doi.org/10.1155/2019/9365767.

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In this paper, a synthesis approach of model predictive control (MPC) is proposed for interval type-2 (IT2) Takagi-Sugeno (T-S) fuzzy system with quantization error, bounded disturbance, and data loss. The novelty lies in the following technical improvements. In order to reduce the redundant data transmission, an event-triggered communication scheme is applied to determine whether the control law should be transmitted into the communication network or not. The IT2 T-S fuzzy model is utilized to address the nonlinearity of plant with parameter uncertainties, which can be captured by the lower a

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Yakubu, Osman, and Emmanuel Wireko. "Internet of things based vital signs monitoring system: A prototype validity test." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 2 (2021): 962. http://dx.doi.org/10.11591/ijeecs.v23.i2.pp962-972.

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The advent of the internet of things (IoT) has resulted in an upsurge in the deployment of digital health care systems enabling patients’ health conditions to be remotely monitored. This article presents an intelligent and automated IoT-based vital signs monitoring system to aid in patient care. A the oretical framework was established to guide the development of a prototype. It encompasses the patient, IoT sensors, input and storage unit and data processing, analysis and data transmission. The prototype is equipped with the capability of sensing a patient’s body temperature, heart rate, and r

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Karakul, Özlem. "Sculptural reproduction of architectural ornamentation as a way for conservation of traditional craftsmanship." Global Journal of Arts Education 8, no. 1 (2018): 17–27. http://dx.doi.org/10.18844/gjae.v8i1.3253.

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 Traditional craftsmanship as a part of intangible cultural heritage needs to be conserved as defined in the UNESCO 2003 Convention and Living Human Treasures System. In architecture, traditional craftsmanship is embodied on architectural ornaments in historic buildings by local builders; and the conservation of it necessitates its transmission process from generation to generation. In the traditional building production period, the transmission process had been guaranteed by master–apprentice relation, but nowadays, it has been interrupted together with the drastic change in building te

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Wu, Jun, Shaowei Fan, Minghe Jin, Kui Sun, Cheng Zhou, and Hong Liu. "Design and experiment of a universal space-saving end-effector for multi-task operations." Industrial Robot: An International Journal 43, no. 2 (2016): 193–203. http://dx.doi.org/10.1108/ir-07-2015-0132.

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Purpose – The purpose of this paper is to present the design and experiment of a universal space-saving end-effector for multi-task operations. Design/methodology/approach – The universal end-effector is equipped with capture and actuation transmission capabilities with two corresponding subsystems, which are highly integrated systems of mechanics, electronics and sensors. A trefoil-shaped capture system is developed for closed envelop. The worm gear pair is adopted for self-locking and space-saving, and it is used in a unique manner for three grapple chains’ synchronous motion. The combinatio

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Alam*, Sk Shariful, Shishir Mallick, and Al-Zadid Sultan Bin Habib. "Performance Analysis of Cognitive Radios in a Cooperative Scheme over Nakagami Fading Channels." Indian Journal of Signal Processing 1, no. 3 (2021): 8–14. http://dx.doi.org/10.35940/ijsp.c1009.081321.

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Radio spectrum is a primary requisite for wireless technologies and sensor networks. Due to the high demand and expense of the radio spectrum, it is guaranteed to extend its efficient utilization it. To expand the effective operation and serviceability of the radio spectrum in wireless communications, the notion of Cognitive Radio (CR) is presented in where the licensed spectrum of Primary User (PU) is used opportunistically by unlicensed CR users without interfering with the prioritized PU data transmission. Usually, a CR system is applied to detect empty radio bands by exploiting well-known

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Hu, Xiong, and Zhi-Wei Liu. "Distributed Optimal Day-Ahead Scheduling in a Smart Grid: A Trade-Off among Consumers, Power Suppliers, and Transmission Owners." Complexity 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/7398041.

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To cope with the challenges due to increasing peak load, an optimal day-ahead scheduling problem for social welfare maximization is proposed, in which not only the comfort level of consumers and costs of power suppliers but also the power losses in transmission and operation costs of transmission owners are taken into account. Then this optimal day-ahead scheduling problem is reformulated and solved via the alternating direction method of multipliers (ADMM), by which fast convergence is guaranteed and the privacy of participants is ensured, in a distributed manner. Specifically, in the propose

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Ali, Zain, Yanyi Rao, Wali Ullah Khan, and Guftaar Ahmad Sardar Sidhu. "Joint User Pairing, Channel Assignment and Power Allocation in NOMA based CR Systems." Applied Sciences 9, no. 20 (2019): 4282. http://dx.doi.org/10.3390/app9204282.

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The fifth generation (5G) wireless communication systems promise to provide massive connectivity over the limited available spectrum. Various new transmission paradigms such as non-orthogonal multiple access (NOMA) and cognitive radio (CR) have emerged as potential 5G enabling technologies. These techniques offer high spectral efficiency by allowing multiple users to communicate on the same frequency channel, simultaneously. A combination of both techniques may further enhance the performance of the system. This work aims to maximize the achievable rate of a multi-user multi-channel NOMA based

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Choi, Sang-Min, Jiho Park, Kiyoung Jang, and Chihyun Park. "Rapid Consensus Structure: Continuous Common Knowledge in Asynchronous Distributed Systems." Mathematics 8, no. 10 (2020): 1673. http://dx.doi.org/10.3390/math8101673.

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A distributed system guarantees the acceptance of Byzantine fault tolerance (BFT) for information transmission. Practical BFT (pBFT) and asynchronous BFT (aBFT) are among the various available forms of BFT. Distributed systems generally share information with all participating nodes. After information is shared, the systems reshare it. Thus, ensuring BFT consumes a considerable amount of time. Herein, we propose Decision search protocols that apply the gossip protocol, denoted by DecisionBFT, for distributed networks with guaranteed BFT. Each protocol in DecisionBFT is completely asynchronous

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Gheth, Waled, Khaled M. Rabie, Bamidele Adebisi, Muhammad Ijaz, and Georgina Harris. "Performance Analysis of Cooperative and Non-Cooperative Relaying over VLC Channels." Sensors 20, no. 13 (2020): 3660. http://dx.doi.org/10.3390/s20133660.

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The line-of-sight (LoS) channel is one of the requirements for efficient data transmission in visible-light communications (VLC), but this cannot always be guaranteed in indoor applications for a variety of reasons, such as moving objects and the layout of rooms. The relay-assisted VLC system is one of the techniques that can be used to address this issue and ensures seamless connectivity. This paper investigates the performance of half-duplex (HD) conventional DF relay system and cooperative systems (i.e., selective DF (SDF) and incremental DF (IDF)) over VLC channels in terms of outage proba

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Liu, Jikai, Biao Ma, Heyan Li, Man Chen, and Guoqiang Li. "Control strategy optimization for a dual-clutch transmission downshift with a single slipping clutch during the torque phase." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 5 (2017): 651–66. http://dx.doi.org/10.1177/0954407017704783.

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During the torque phase, appropriate coordination between two clutches is of vital importance to the dual-clutch transmission so that a high-quality shift is achieved without clutch interaction and engine flare, because a poor-quality shift definitely extends the shift time and increases the friction work. Concerning this problem, two different power flow conditions during the torque phase are discussed in detail, after investigation of the dual-clutch transmission downshift process and the design of an H∞ robust controller for the inertia phase. The results obtained indicate that, if two clut

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Zhao, Pengbing, Jin Huang, and Yaoyao Shi. "Nonlinear dynamic modeling and adaptive sliding control of the milling head for efficient and powerful machining." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 3 (2016): 381–93. http://dx.doi.org/10.1177/0954405416646001.

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Milling head is an essential assembly in the five-axis computer numerical control machine tools, positioning precision of which directly affects the machining accuracy and surface quality of the processed parts. Considering the influence of nonlinear friction in the transmission mechanism and the uncertain cutting force disturbance on the control precision of the milling head, the static and dynamic performances of the milling head are analyzed; relationships among the drive torque, load torque, motion direction and system parameters are discussed; and, finally, nonlinear dynamic model of the

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Guo, Xian, Tao Feng, Cheng Chen, and Tong Liu. "Publish/subscribe scheme for content centric MANETs." Computer Science and Information Systems 13, no. 1 (2016): 93–114. http://dx.doi.org/10.2298/csis150320045g.

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It is allowed that data of the content producer is cached anywhere in Content Centric MANET (CCMANET). This scheme decoupling of data from the data source make traditional end-end authentication transmission unavailable in CCMANET. So, it is a challenge how to ensure content publishing or subscribing only by legitimate users. In this paper, we firstly design a new Yaksha system on Elliptic Curve (EC-Yaksha), and then a secure Content Publish/Subscribe System based on EC-Yaksha (ECY-CPS) for CCMANET is proposed. In ECY-CPS, EC-Yaksha server manages joining or leaving of network users and distri

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Xu, Shengfeng, Gang Zhu, Chao Shen, Yan Lei, and Zhangdui Zhong. "Analysis and Optimization of Resource Control in High-Speed Railway Wireless Networks." Mathematical Problems in Engineering 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/781654.

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This paper considers a joint optimal design of admission control and resource allocation for multimedia services delivery in high-speed railway (HSR) wireless networks. A stochastic network optimization problem is formulated which aims at maximizing the system utility while stabilizing all transmission queues under the average power constraint. By introducing virtual queues, the original problem is equivalently transformed into a queue stability problem, which can be naturally decomposed into three separate subproblems: utility maximization, admission control, and resource allocation. A thresh

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Jabbar, Rateb, Mohamed Kharbeche, Khalifa Al-Khalifa, Moez Krichen, and Kamel Barkaoui. "Blockchain for the Internet of Vehicles: A Decentralized IoT Solution for Vehicles Communication Using Ethereum." Sensors 20, no. 14 (2020): 3928. http://dx.doi.org/10.3390/s20143928.

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The concept of smart cities has become prominent in modern metropolises due to the emergence of embedded and connected smart devices, systems, and technologies. They have enabled the connection of every “thing” to the Internet. Therefore, in the upcoming era of the Internet of Things, the Internet of Vehicles (IoV) will play a crucial role in newly developed smart cities. The IoV has the potential to solve various traffic and road safety problems effectively in order to prevent fatal crashes. However, a particular challenge in the IoV, especially in Vehicle-to-Vehicle (V2V) and Vehicle-to-Infr

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Abdu, Abdullahi Ibrahim, Oguz Bayat, and Osman Nur Ucan. "Designing insistence-aware medium access control protocol and energy conscious routing in quality-of-service-guaranteed wireless body area network." International Journal of Distributed Sensor Networks 15, no. 1 (2019): 155014771881584. http://dx.doi.org/10.1177/1550147718815843.

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Wireless body area network is a type of wireless sensor network that enables efficient healthcare system. To minimize frequent sensor replacement due to resource restrictions, it is necessary to improve energy efficiency in wireless body area network. This article deals with energy efficiency and quality-of-service improvement together in novel wireless body area network architecture. A novel wireless body area network architecture is designed with dual sink nodes in order to minimize delay and energy consumption. A novel insistence-aware medium access control protocol which is aware of critic

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Odetunde, Opeyemi, Jibril Lawal, and Ally Yeketi Ayinla. "ROLE OF REINFECTION IN TRANSMISSION DYNAMICS OF COVID-19: A SEMI-ANALYTICAL APPROACH USING DIFFERENTIAL TRANSFORM METHOD." MALAYSIAN JOURNAL OF COMPUTING 6, no. 1 (2021): 745. http://dx.doi.org/10.24191/mjoc.v6i1.9814.

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Reinfection of a recovered individual either as a result of relapse or new contact no doubt poses a major threat to the eradication of an infection within the host community. In this work, the role of re-infection in the transmission dynamics of COVID-19 was considered and analysed using the semi-analytical tool Differential Transform Method (DTM). COVID-19 (also known as Coronavirus) has shut down the economy of the world since it became a global pandemic. A mathematical model was constructed with consideration of multiple pathways of infection transmission, the treatment strategies and polic

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Steuer, Ann-Kathrin, Matthias Klinger, Ralph Pries, and Kerstin Lüdtke-Buzug. "New Tracer for Magnetic Particle Imaging - SPIONs encapsulated in RBCs." Current Directions in Biomedical Engineering 4, no. 1 (2018): 271–74. http://dx.doi.org/10.1515/cdbme-2018-0066.

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AbstractSuperparamagnetic iron oxide nanoparticles, so called SPIONs, are used as tracers in medical imaging, e. g. for magnetic particle imaging (MPI) or magnetic resonance imaging (MRI). Since the half-life time of the SPIONs in the bloodstream is quite short because they are quickly absorbed by the reticuloendothelial system (RES), the particles are introduced into human red blood cells (RBCs) to increase their half-life time in the blood circulation. The hypotonic swelling procedure is used to incorporate the particles into the RBCs. Before the SPIONs are introduced into the RBCs, they are

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Tanygin, M. O. "Restoring the Order of Information Packets Based on Hash Sequence Analysis." Proceedings of the Southwest State University 24, no. 1 (2020): 175–88. http://dx.doi.org/10.21869/2223-1560-2020-24-1-175-188.

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Purpose of research. Currently, various technologies and methods are used to control the integrity and authenticity of data transmitted through open communication channels. One of them is the technology for transmitting sequences of information packets connected to each other in chains using certain cryptographic algorithms. Similar approaches are used in the well-known blockchain technology and are focused on large volumes of transmitted and protected information and large sizes of additional service information fields. The purpose of this article is to study the characteristics of systems, t

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