Results 31 to 40 of about 3,406,012 (295)
Theoretical prediction of propagation loss [PDF]
The Journal of the Acoustical Society of America, 1974 This paper takes a broad look at the problems and techniques involved in the theoretical prediction of propagation loss in the ocean. Most propagation loss models in current use are based on ray theory, because of the relative simplicity with which ray solutions can be obtained and computations performed, even for range-dependent environments. However,
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In situ loss measurement of direct UV written waveguides using integrated Bragg gratings
, 2010 The propagation loss of a direct UV-written silica-on-silicon waveguide is measured using an elegant nondestructive method. The technique uses integrated Bragg grating structures, which are observed from opposing launch directions to obtain information ...
Rogers, H.L. +9 more
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A mixed-cell propagation model for interference prediction in a UMTS network [PDF]
, 2001 With the support of mixed cells and hierarchical cell structures in UMTS, propagation information (coverage and interference) between different cell types is required.
Nix, AR, Tameh, EK
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A Deep Learning Approach for Accurate Path Loss Prediction in LoRaWAN Livestock Monitoring
SensorsThe agricultural sector is amidst an industrial revolution driven by the integration of sensing, communication, and artificial intelligence (AI). Within this context, the internet of things (IoT) takes center stage, particularly in facilitating remote ...
Mike O. Ojo +5 more
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Stefański and Jarosław Sadowski Propagation Path Loss Modeling in Container Terminal Environment
Journal of Telecommunications and Information Technology, 2023 This paper describes novel method of path loss modeling for radio communication channels in container port area. Multi-variate empirical model is presented, based on multidimensional regression analysis of real path loss measurements from container ...
Ryszard J. Katulski +2 more
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Statistical peer-to-peer channel models for outdoor urban environments at 2GHz and 5GHz [PDF]
, 2004 The paper provides a new statistical propagation model that addresses a number of gaps in the area of peer-to-peer radio channel modelling in an urban microcellular environment.
Nix, AR, Wang, Z, Tameh, EK
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High-Q TeO2–Si Hybrid Microring Resonators
Applied Sciences, 2022 We present the design and experimental measurement of tellurium oxide-clad silicon microring resonators with internal Q factors of up to 1.5 × 106, corresponding to a propagation loss of 0.42 dB/cm at wavelengths around 1550 nm.
Khadijeh Miarabbas Kiani +3 more
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Propagation loss predictions: a summary [PDF]
The Journal of the Acoustical Society of America, 1974 This paper reviews briefly the material presented by the other speakers of the session and discusses the state-of-the-art in propagation loss modeling.
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Measurement and Analysis of Extra Propagation Loss of Tunnel Curve [PDF]
IEEE Transactions on Vehicular Technology, 2016 Wave propagation experiences extra loss in curved tunnels, which is highly desired for network planning. Extensive narrow-band propagation measurements are made in two types of Madrid subway tunnels (different cross sections and curvatures) with various configurations (different frequencies and polarizations). A ray tracer validated by the straight and
Ai, Bo +6 more
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Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source