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Spatial Characteristics of Wideband Channels Using Leaky Coaxial Cables in Tunnel Scenario
Published 2019-01-01“…This paper presents the spatial domain and propagation characteristics of different wideband channels using leaky coaxial cables (LCXs) for underground environment at 1.8GHz corresponding to the Long Term Evolution for Metro (LTE-M) standards. …”
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Sorption cable sensor with large sensing range and fields of its application
Published 2020-06-01“…The paper discusses the existing approaches to the use of point and cable sensors to control leaks and humidity. The principal disadvantages of monitoring systems based on them are shown: when detecting leaks, there is a delay in the response time due to the condition of fluid accumulation around the sensors; when controlling the humidity of extended environments, it becomes necessary to install a large number of point sensors with individual switching channels; there is no universal sensor for monitoring leaks and humidity. …”
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Stability and Control of Retracement Channels in Thin Seam Working Faces with Soft Roof
Published 2021-01-01“…The relationship between the working resistance of the hydraulic support and the sinking rotation angle of the immediate roof was analyzed, and a reasonable time for the arrangement of the retracement channel was determined. The sublevel excavation technology and the combined support technology of roof anchor cables and coal rib anchors were proposed. …”
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Failure Mechanism and Control of Lower Retracement Channel in Close-Distance Double-Thick Coal Seams
Published 2021-01-01“…In addition, when the upper coal pillar is in critical stable or stable state (w/h>2), high stress concentration in the upper coal pillar is transmitted downward through floor rock so that two dangerous areas with severe strata behavior are formed in N0381 retracement channel. In view of this, a partition control strategy with “high-pressure water jet + asymmetric high-strength cable-beam net + three-hole anchor cable group + roof grouting” as the core is proposed to ensure the stability of the lower retracement channel. …”
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Joint approximate diagonalization technique for modal identification of the Donghai Bridge
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Fetal Spinal Cord Tissue in Mini-Guidance Channels Promotes Longitudinal Axonal Growth after Grafting into Hemisected Adult Rat Spinal Cords
Published 1999-01-01“…Solid fetal spinal cord (FSC) tissue, seeded into semipermeable mini-guidance channels, was tested for the ability to promote axonal growth across the gap created by a midthoracic (T8) hemisection in adult rats. …”
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RESEARCH ON UNDERWATER COMMUNICATION AND SIMULATED ASSESSMENT OF MAIN PARAMETERS
Published 2018-07-01“…The simplest and most effective way is using a cable connection between the transmitter and the receiver, which ensures high quality of signal and minimizes unwanted effects of the environment. …”
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Two-Stage Over-the-Air (OTA) Test Method for LTE MIMO Device Performance Evaluation
Published 2012-01-01“…In the first stage, the antenna pattern is measured in an anechoic chamber using a nonintrusive approach, that is without cabled connections or modifying the device. In the second stage, the antenna pattern is convolved with the chosen channel model in a channel emulator to measure throughput using a cabled connection.…”
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Friction Characteristics of Post-Tensioned Tendons of Full-Scale Structures Based on Site Tests
Published 2020-01-01“…In the design of prestressing concrete structures, the friction characteristics between strands and channels have an important influence on the distribution of prestressing force, which can be considered comprehensively by curvature and swing friction coefficients. …”
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Technological Evolution of Architecture, Engineering, Construction, and Structural Health Monitoring of Bridges in Peru: History, Challenges, and Opportunities
Published 2025-01-01“…These characteristics result in the country having many hydrographic basins, with rivers of significant dimensions in terms of the width and length of the channel. In this sense, there is a permanent need to provide connectivity and promote trade between communities through road bridge infrastructure. …”
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Network Design and Route Analysis Using Outside Plant
Published 2025-01-01“…However, different service channels such as water pipelines, network cables, and electric cables make the implementation of these installations very challenging. …”
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A review of quantum communication and information networks with advanced cryptographic applications using machine learning, deep learning techniques
Published 2025-03-01“…QKD protocols ensure secure communication channels, while quantum repeaters establish secure long-distance communication lines by mitigating signal loss. …”
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Modeling Burst Error Processes in ITU-T G.hnem-Based PLC Systems: Noisy Indoor Environment Analysis Using a Generative Semi-Hidden Markov Model
Published 2025-01-01“…This research makes four key contributions: (1) the development of a robust experimental testbed for real-time burst error analysis in NB-PLC systems, (2) the creation of a comprehensive dataset that characterizes noise-induced disruptions in real-world indoor scenarios, (3) a theoretical exploration and practical application of SHMMs for modeling error sequences in NB-PLC channels, and (4) the validation of SHMMs and a modified Baum-Welch algorithm (BWA) for efficient modeling and parameter estimation of burst error processes. …”
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