Showing 2,961 - 2,980 results of 4,172 for search 'prelacy~', query time: 2.08s Refine Results
  1. 2961

    Automatic Recognition and Detection System Based on Machine Vision by Lu Wang, Lihong Cui

    Published 2022-01-01
    “…This paper combines machine vision with motion control theory and uses pulse coupled neural network (PCNN) edge detection and recognition algorithms to preliminarily design a set of machine vision automatic recognition and detection systems and carry out detection and recognition experiments on small parts such as relay covers. The experimental results show that the whole process of part size detection and recognition, including part feeding, image acquisition, size recognition, part screening, and reset of the experimental platform, can be completed within 5 s and can carry out high-precision dynamic recognition and detection when the part moves at a speed of 1 m/s. …”
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  2. 2962

    Food for thought: Family Entrepreneurship in four questions by Kathleen Randerson

    Published 2024-03-01
    “…The purpose of this essay is to relay the momentum to academics, practitioners, and society. …”
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    Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access by Ammar Zafar, Mohamed-Slim Alouini, Yunfei Chen, Redha M. Radaydeh

    Published 2012-01-01
    “…Both the cases of all-participate relaying and selective relaying are considered. The objective function is derived and the constraints are detailed for both scenarios. …”
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  6. 2966
  7. 2967

    SDFMUCR: Software-defined and fuzzy-based multi-hop unequal cluster routing by Lu Sixu, Wu Muqing, Zhao Min

    Published 2020-10-01
    “…In these protocols, nodes closer to base station have the smaller cluster size than other sensor nodes. It will reduce the relay pressure of the node which is near to the base station. …”
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  8. 2968

    Distributed data storage and transmission for space Internet of things by Qinyu ZHANG, Shushi GU, Ye WANG, Jiayin XUE

    Published 2018-12-01
    “…Based on the concepts and related techniques of Internet of things (IoT),tracking the development tendency of the satellite IoT and LEO constellation communication system abroad,and the deployment of the integrated satellite-terrestrial information network in China,the concept of space Internet of things (Space IoT) with its framework and main characteristics was proposed.Space IoT has the different concept compared to the traditional IoT,not just using the relay satellite to implement remote machine-to-machine communication.Space IoT is a ubiquitous IoT system under the integrated satellite-terrestrial information network architecture,and an expansion of the terrestrial IoT in the global three-dimensional world,and a service and application platform of multiple information technologies.With the recently era of big data,the space IoT has to face some data storage and transmission problems,such as excessive system load,data loss,frequent link interruption,high energy consumption,etc.Establishing a space-oriented IoT integrated distributed storage and transmission system was to meet the requirements of security guarantee and cross-domain interconnection with massive information businesses.Development status of related technologies were illustrated.At last,the prospect and thought of the future research of space Internet of things were presented.…”
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  9. 2969

    Distributed IOS-SM transmission scheme with joint antenna and IOS unit selection for high-speed railway scenario by Qingfeng DING, Song WANG

    Published 2023-04-01
    “…A distributed intelligent omni-surface (IOS) -assisted spatial modulation (SM) transmission scheme was proposed to address the problem of transmission rate degradation caused by the high signal penetration loss in closed carriages in the high-speed railway scenarios.Firstly, SM technology was utilized to ensure that the indexed information section was not affected by penetration loss.Then, to reduce the high path loss and power loss of the long-range IOS windows, the distributed IOS was selected by traversal algorithm according to the principle of maximizing the received signal-to-noise ratio, and the best IOS window was activated to transmit the SM modulated information.Finally, to reduce the impact of the missing direct view path gain on the overall system performance, the antenna removal principle and the sequential selection method were used to dynamically and selectively activate the receiving antenna and IOS unit under the power consumption model.The simulation results show that the proposed scheme is more suitable for the high-speed railway wireless communication scenario than the conventional relay-forwarding and reconfigurable intelligence surface -SM (RIS-SM) schemes.And with the power loss model, the distributed IOS-SM scheme chosen by the combined antenna and IOS unit is still able to guarantee high performance transmission of the system.…”
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  10. 2970

    A Survey of Secure Communications for Satellite Internet Based on Cryptography and Physical Layer Security by Yu Zhang, Shuangrui Zhao, Ji He, Yuanyu Zhang, Yulong Shen, Xiaohong Jiang

    Published 2023-01-01
    “…The former includes classical encryption-based and quantum encryption-based secure communication, and the latter is further divided into precoding-based, cooperative jamming-based, relay selection-based, and physical-layer authentication-based secure communication depending on the applied techniques. …”
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  15. 2975

    Pech Piélat (Séniergues, Lot) : un relais routier antique en pays cadurque by Laurent Grimbert, Vivien Mathé, Marion Druez

    Published 2016-12-01
    “…A comparison of the archaeological data and the results of the tomography has enabled the identification and description of a small relay station along the Divona-Augustoritum route. …”
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  18. 2978

    Optimal linear quadratic control for wireless sensor and actuator networks with random delays and packet dropouts by Zhuwei Wang, Lihan Liu, Chao Fang, Xiaodong Wang, Pengbo Si, Hong Wu

    Published 2018-06-01
    “…Considering the event-driven relay nodes, the optimal solution is obtained, which is a function of the current plant state and all past control signals. …”
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  19. 2979

    Emergence of Prediction by Reinforcement Learning Using a Recurrent Neural Network by Kenta Goto, Katsunari Shibata

    Published 2010-01-01
    “…In a task where an agent gets a reward when it catches a moving object that can possibly become invisible, it was observed that the agent learned to detect the necessary factors of the object velocity before it disappeared, to relay the information among some hidden neurons, and finally to catch the object at an appropriate position and timing, considering the effects of bounces off a wall after the object became invisible.…”
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  20. 2980