Results 71 to 80 of about 254,897 (327)

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

60 GHz Indoor Propagation Studies for Wireless Communications Based on a Ray-Tracing Method

open access: yesEURASIP 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

Optimized Ray Tracing [PDF]

open access: yes, 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  

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

Multiplexed optical data storage and vectorial ray tracing

open access: yesEPJ Web of Conferences, 2010
With the motivation of creating a terabyte-sized optical disk, a novel imaging technique is implemented. This technique merges two existing technologies: confocal microscopy and Mueller matrix imaging. Mueller matrix images from a high numerical space
Foreman M.R.   +4 more
doaj   +1 more source

The refocusing distance of a standard plenoptic photograph [PDF]

open access: yes, 2015
IEEE International Conference PaperIn the past years, the plenoptic camera aroused an increasing interest in the field of computer vision. Its capability of capturing three-dimensional image data is achieved by an array of micro lenses placed in front of
Aggoun, Amar   +2 more
core   +2 more sources

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

open access: yesAdvanced 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   +12 more
wiley   +1 more source

Analysis of Simulated and Measured Indoor Channels for mm-Wave Beamforming Applications

open access: yesInternational Journal of Antennas and Propagation, 2018
Ray tracing- (RT-) assisted beamforming, where beams are directly steered to dominant paths tracked by ray tracing simulations, is a promising beamforming strategy, since it avoids the time-consuming exhaustive beam searching adopted in conventional beam
Anders Karstensen   +4 more
doaj   +1 more source

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

open access: yes, 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   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy