Results 31 to 40 of about 432,565 (300)

Diffuse Reflections in Simple Polygons [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2013
Abstract We prove a conjecture of Aanjaneya, Bishnu, and Pal that the maximum number of diffuse reflections needed for a point light source to illuminate the interior of a simple polygon with n walls is ⌊ n / 2 ⌋ − 1 . Light reflecting diffusely leaves a surface in all directions, rather than at an identical angle as with specular ...
Gill Barequet   +6 more
openaire   +6 more sources

Skin Diffuse Reflectance

open access: yes, 2020
Data set containing simulated skin diffuse reflectance ...
Alexander Bykov
core   +2 more sources

Operando Diffuse Reflectance UV-VIS Spectroelectrochemistry for Investigating Oxygen Evolution Electrocatalysts [PDF]

open access: yes, 2019
This is a complete self-standing study on operando diffuse reflectance UV-vis spectroelectrochemistry for investigating oxygen evolution electrocatalysts.
Nicola, Pinna   +5 more
core   +2 more sources

Illumination invariance and shadow compensation on hyperspectral images [PDF]

open access: yes, 2014
To obtain intrinsic reflectance of the scene by hyperspectral imaging systems has been a scientific and engineering challenge. Factors such as illumination variations, atmospheric effects and viewing geometries are common artefacts which modulate the way
Ibrahim, Izzati
core   +3 more sources

MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY

open access: yesТонкие химические технологии, 2017
Results of testing a prototype light-emitting diod miniphotometer for rapid and sensitive elements determination both in laboratory and in field conditions are presented. The new photometer consists of two devices providing measurements of absorbance and
Ya. I. Simakina   +3 more
doaj   +1 more source

The interpretation of diffuse reflectance spectra

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1976
Numerous treatments of the diffuse reflecting properties of scattering media have been described. Many theories give an adequate account of the reflectance for a specific set of conditions for which the model was constructed and the solution tested experimentally. Only those models which are considered to be fairly general are considered here.
openaire   +2 more sources

Diffuse Reflectance Changes During the Culture of Cottage Cheese [PDF]

open access: yes, 1998
A sensor for measuring diffuse reflectance of milk during the typical 6-h culture of cottage cheese was installed in a local manufacturing facility. Diffuse reflectance was found to increase slowly during the first three hours of the culture and increase
Payne, Frederick Alan   +3 more
core   +1 more source

Optical Nerve Detection by Diffuse Reflectance Spectroscopy for Feedback Controlled Oral and Maxillofacial Laser Surgery

open access: yesJournal of Translational Medicine, 2011
Background Laser surgery lacks haptic feedback, which is accompanied by the risk of iatrogenic nerve damage. It was the aim of this study to investigate diffuse reflectance spectroscopy for tissue differentiation as the base of a feedback control system ...
Douplik Alexandre   +6 more
doaj   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz   +12 more
wiley   +1 more source

Diffuse Reflection Radius in a Simple Polygon [PDF]

open access: yesAlgorithmica, 2014
It is shown that every simple polygon in general position with $n$ walls can be illuminated from a single point light source $s$ after at most $\lfloor (n-2)/4\rfloor$ diffuse reflections, and this bound is the best possible. A point $s$ with this property can be computed in $O(n\log n)$ time.
Fox-Epstein, Eli   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy