Results 21 to 30 of about 515,838 (299)
Illuminating micro geometry based on precomputed visibility
Proceedings of the 27th annual conference on Computer graphics and interactive techniques - SIGGRAPH '00, 2000 Many researchers have been arguing that geometry, bump maps, and BRDFs present a hierarchy of detail that should be exploited for efficient rendering purposes. In practice however, this is often not possible due to inconsistencies in the illumination for these different levels of detail. For example, while bump map rendering often only considers direct
Heidrich, W. +3 more
openaire +2 more sources
Simulation-Based and Experimental Investigation of Micro End Mills with Wiper Geometry
Micromachines, 2021 One of the major advantages of micromachining is the high achievable surface quality at highly flexible capabilities in terms of the machining of workpieces with complex geometric properties.
Timo Platt +3 more
doaj +1 more source
Holographic micro thermofield geometries of BTZ black holes
Journal of High Energy Physics, 2017 We find general deformations of BTZ spacetime and identify the corresponding thermofield initial states of the dual CFT. We deform the geometry by introducing bulk fields dual to primary operators and find the back-reacted gravity solutions to the quadratic order of the deformation parameter.
Bak, Dongsu +3 more
openaire +4 more sources
Reforming Integrated with Oxidation in Micro-Heat Exchanger Reactor with Circular Micro-Channels [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2014 Steam reforming integrated with oxidation of methanol was considered with numerical simulation. The parallel micro-channels with circular cross sections were used.
Faramarz Hormozi +2 more
doaj +1 more source
Geometry-controllable micro-optics with laser catapulting
Optical Materials Express, 2019 Individual or arrayed microlenses offer remarkable opportunities in optics and photonics. However, their usage is currently limited by the lack of manufacturing technologies capable of tailoring the lens geometry to target devices. Here, we demonstrate how laser catapulting (LCP), a recent laser-based additive manufacturing technique, enables the ...
Salvatore Surdo +2 more
openaire +3 more sources
Contrast-enhanced micro-CT imaging in murine carotid arteries : a new protocol for computing wall shear stress [PDF]
, 2016 Background: Wall shear stress (WSS) is involved in the pathophysiology of atherosclerosis. The correlation between WSS and atherosclerosis can be investigated over time using a WSS-manipulated atherosclerotic mouse model.
De Wilde, David +7 more
core +1 more source
Combination of techniques to quantify the distribution of bacteria in their soil microhabitats at different spatial scales [PDF]
, 2018 To address a number of issues of great societal concern at the moment, like the sequestration of carbon, information is direly needed about interactions between soil architecture and microbial dynamics.
Baveye, Philippe C. +6 more
core +8 more sources
Enhancing heat transfer at the micro-scale using elastic turbulence
Theoretical and Applied Mechanics Letters, 2015 Small concentrations of a high-molecular-weight polymer have been used to create so-called “elastic turbulence” in a micro-scale serpentine channel geometry. It is known that the interaction of large elastic stresses created by the shearing motion within
R.D. Whalley +3 more
doaj +1 more source
Finite Element Analysis of Grain Size Effects on Curvature in Micro-Extrusion
Applied Sciences, 2020 The precision and accuracy of the final geometry in micro-parts is crucial, particularly for high-value-added metallic products. Micro-extrusion is one of the most promising processes for delivering high-precision micro-parts.
Pavaret Preedawiphat +6 more
doaj +1 more source
Fluids, 2022 This study experimentally and numerically investigates the effects of the nozzle/needle distance (clearance) and supply pressure on single phase compressible gas flow in a micro orifice with needle restriction, which play important roles in many ...
Akam Aboubakri +7 more
doaj +1 more source