Results 81 to 90 of about 246,167 (257)

Radiative magneto-hydrodynamics in massive star formation and accretion disks [PDF]

, 2009
We briefly overview our newly developed radiation transport module for MHD simulations and two actual applications. The method combines the advantage of the speed of the Flux-Limited Diffusion approximation and the high accuracy obtained in ray-tracing ...
Fromang, Hubert Klahr, Mario Flock, Mignone, Pascucci, Rolf Kuiper   +5 more
core   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

Advanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann, Sarath Menon, Raphael Röske, Johannes Steinhülb, Michael Selzer, Jan Janssen, Tilmann Hickel, Ruth Schwaiger, Jörg Neugebauer   +8 more
wiley   +1 more source

Efficiency Investigation of Langevin Monte Carlo Ray Tracing

Mathematics
The main computationally expensive task of realistic computer graphics is the calculation of global illumination. Currently, most of the lighting simulation methods are based on various types of Monte Carlo ray tracing.
Sergey Ershov, Vladimir Frolov, Alexander Nikolaev, Vladimir Galaktionov, Alexey Voloboy   +4 more
doaj   +1 more source

Path Loss Exponent and Shadowing Factor Prediction From Satellite Images Using Deep Learning

IEEE Access, 2019
Optimal network planning for wireless communication systems requires the detailed knowledge of the channel parameters of the target coverage area. Channel parameters can be estimated through extensive measurements in the environment.
Hasan F. Ates, Syed Muhammad Hashir, Tuncer Baykas, Bahadir K. Gunturk   +3 more
doaj   +1 more source

Ray-tracing and physical-optics analysis of the aperture efficiency in a radio telescope

, 2007
The performance of telescope systems working at microwave or visible/IR wavelengths is typically described in terms of different parameters according to the wavelength range.
Bolli, Pietro, Olmi, Luca
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Mobile radio propagation prediction using ray tracing methods [PDF]

, 1996
The basic problem is to solve the two-dimensional scalar Helmholtz equation for a point source (the antenna) situated in the vicinity of an array of scatterers (such as the houses and any other relevant objects in 1 square km of urban environment).
Allwright, D.J., Chapman, J., Chapman, S. J., Howls, C., King, J., Lacey, A.A., Lawry, J., Lee, G, Ockendon, J.R., Saward, V., Smyshlyaev, V., Tew, R.   +11 more
core  

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Optimized Ray Tracing [PDF]

, 2009
Bakalářská práce se zabývá analýzou, návrhem a implementací programu pro vytvoření obrazu, který využívá optimalizované metody sledování paprsku. Hlavní optimalizací je rozdělení scény do pravidelné mřížky.This bachelor's thesis describes analysis ...
Zamazal, Zdeněk
core  

Solving the stationary Liouville equation via a boundary element method

, 2012
Intensity distributions of linear wave fields are, in the high frequency limit, often approximated in terms of flow or transport equations in phase space.
Boyd, Cerveny, Chappell, Chappell, Craik, David J. Chappell, Ding, Engquist, Glasser, Graefe, Gregor Tanner, Gutzwiller, Junge, Kuttruff, Langley, Langley, Le Bot, Le Bot, Le Bot, Le Bot, LeVeque, Littlejohn, Lyon, Lyon, McDonald, Osher, Runborg, Schmindlin, Sommer, Tanner, Tanner, Telles, Ying   +32 more
core   +1 more source