Results 81 to 90 of about 101,051 (295)
Ray Distribution based Acceleration for Shadow Ray Tracing
工程科学与技术, 2016 :In order to accelerate traversal performance, this paper presents a traversal order algorithm based on an improved cost model by exploiting actual ray distribution.
Zhang Yanci
doaj
Constraining Nonsingular Black Holes with a Minkowski Core via EHT Observations of M87* and Sgr A*
UniverseThe Event Horizon Telescope (EHT) imaging of M87* and Sgr A* provides a unique opportunity to test spacetime geometries in the strong-field regime.
Ming-Xin Li +3 more
doaj +1 more source
Soft bilateral filtering volumetric shadows using cube shadow maps.
PLoS ONE, 2017 Volumetric shadows often increase the realism of rendered scenes in computer graphics. Typical volumetric shadows techniques do not provide a smooth transition effect in real-time with conservation on crispness of boundaries. This research presents a new
Hatam H Ali +2 more
doaj +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Black Hole Gravitational Phenomena in Higher-Order Curvature–Scalar Gravity
UniverseThis work aims to explore the gravitational consequences of a recently proposed black hole solution previously introduced, which incorporates quantum gravitational corrections of General Relativity.
Adailton A. Araújo Filho +2 more
doaj +1 more source
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Penumbra Shadow Representation in Photovoltaics: Comparing Dynamic and Constant Intensity
Applied SciencesThis study is the first to directly compare natural dynamic penumbra shadows with experimentally replicated constant-intensity shadows on photovoltaic modules, providing new insights into the limitations of conventional shadow approximations found in the
Matthew Axisa +2 more
doaj +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Single image shadow removal by optimization using non-shadow anchor values
Computational Visual Media, 2019 Shadow removal has evolved as a pre-processing step for various computer vision tasks. Several studies have been carried out over the past two decades to eliminate shadows from videos and images. Accurate shadow detection is an open problem because it is
Saritha Murali +2 more
doaj +1 more source
Out of the shadows: automatic fish detection from acoustic cameras
, 2022 Efficacious monitoring of fish stocks is critical for efficient management. Multibeam acoustic cameras, that use sound-reflectance to generate moving pictures, provide an important alternative to traditional video-based methods that are inoperable in ...
Shand, A +6 more
core +1 more source