Results 61 to 70 of about 4,410,782 (330)
Implementation of Refined Ray Tracing inside a Space Module [PDF]
Journal of Systemics, Cybernetics and Informatics, 2012 Modern space modules are susceptible to EM radiation from both external and internal sources within the space module. Since the EM waves for various operations are frequently in the high-frequency domain, asymptotic raytheoretic methods are often the ...
Balamati Choudhury, R.M. Jha
doaj
Ray Tracing RF Field Prediction: An Unforgiving Validation
International Journal of Antennas and Propagation, 2015 The prediction of RF coverage in urban environments is now commonly considered a solved problem with tens of models proposed in the literature showing good performance against measurements. Among these, ray tracing is regarded as one of the most accurate
E. M. Vitucci +8 more
doaj +1 more source
Sensors, 2018 The ultra-short baseline positioning system (USBL) has the advantages of flexible application and easy installation, and it plays an extremely important role in the underwater positioning and communication. The error of the USBL in underwater positioning
Jian Li +4 more
doaj +1 more source
Vicinity ray tracing: an alternative to dynamic ray tracing [PDF]
Geophysical Journal International, 1990 SUMMARY A method for computing seismic wavefields in a high-frequency approximation is proposed based on the integration of the kinematic ray tracing equations and a new set of differential equations for the dynamic properties of the wavefront, which we call the vicinity ray tracing (VRT) equations.
Woohan Kim, Vernon F. Cormier
openaire +1 more source
Data Parallel Multi‐GPU Path Tracing using Ray Queue Cycling [PDF]
, 2023 Ingo Wald, M. Jaroš, Stefan Zellmann
openalex +1 more source
Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6
Advanced Engineering Materials, EarlyView.The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter +4 more
wiley +1 more source
Texture Level of Detail Strategies for Real-Time Ray Tracing
Ray Tracing Gems, 2019 Unlike rasterization, where one can rely on pixel quad partial derivatives, an alternative approach must be taken for filtered texturing during ray tracing. We describe two methods for computing texture level of detail for ray tracing. The first approach
T. Akenine-Möller +5 more
semanticscholar +1 more source
Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study
Advanced Engineering Materials, EarlyView.This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud +7 more
wiley +1 more source
60 GHz Indoor Propagation Studies for Wireless Communications Based on a Ray-Tracing Method
EURASIP Journal on Wireless Communications and Networking, 2007 This paper demonstrates a ray-tracing method for modeling indoor propagation channels at 60 GHz. A validation of the ray-tracing model with our in-house measurement is also presented. Based on the validated model, the multipath channel parameter such as
Lim C-P +4 more
doaj +2 more sources
Advanced Engineering Materials, EarlyView.Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar +5 more
wiley +1 more source