Investigation of the sound absorption properties of gypsum particleboard produced with kenaf stalks and nano clay [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2014 In this study sound absorption coefficient and hardness of gypsum particleboard produced with kenaf stalk and nano clay were investigated. Variables in this study were weight ratio of kenaf stalks to poplar wood in three levels (40, 50 and 60 %) and nano
Hossein Rangavar, Mohammad hassan Payan
doaj +1 more source
Constrained two-stream algorithm for calculating aerosol light absorption coefficient from the Particle Soot Absorption Photometer [PDF]
Atmospheric Measurement Techniques, 2014 We present a new correction scheme for filter-based absorption photometers based on a constrained two-stream (CTS) radiative transfer model and experimental calibrations.
T. Müller, A. Virkkula, J. A. Ogren
doaj +1 more source
ACS Applied Materials and Interfaces, 2020 Developing high-performance electromagnetic interference (EMI) shielding materials with high absorption coefficient is highly desired for eliminating the secondary pollution of reflected electromagnetic wave (EMW).
Zi-Han Zhou +6 more
semanticscholar +1 more source
Measurement of the diffuse field sound absorption using a sound field synthesis method
Acta Acustica, 2023 A method for measuring the diffuse field sound absorption coefficient of a material using sound field synthesis is proposed. A planar loudspeaker array is first used to generate acoustic plane waves with variable incidence angle on the surface of a ...
Dupont Samuel +5 more
doaj +1 more source
AN INVESTIGATION OF THE POROUS SILICON OPTICAL-ABSORPTION POWER-LAW NEAR THE BAND-EDGE [PDF]
, 2002 A theoretical investigation of the absorption coefficient of p-type doped porous silicon near the band edge is presented. We assume that the absorption coefficient is constructed by taking an average over a distribution (in terms of band gap) of ...
CHOY, TC, DERLET, PM, STONEHAM, AM
core +1 more source
Simultaneous Maximum-Likelihood Reconstruction of Absorption Coefficient, Refractive Index and Dark-Field Scattering Coefficient in X-Ray Talbot-Lau Tomography. [PDF]
PLoS ONE, 2016 A maximum-likelihood reconstruction technique for X-ray Talbot-Lau tomography is presented. This technique allows the iterative simultaneous reconstruction of discrete distributions of absorption coefficient, refractive index and a dark-field scattering ...
André Ritter +2 more
doaj +1 more source
Direct determination of absorption anisotropy in colloidal quantum rods [PDF]
, 2012 We propose a direct method to determine absorption anisotropy of colloidal quantum rods. In this method, the rods are aligned in solution by using an alternating electric field and we measure simultaneously the resulting average change in absorption.
Compernolle, Sien +6 more
core +1 more source
Frontiers in Marine Science, 2023 Particulate organic carbon (POC) in the surface ocean contributes to understanding the global ocean carbon cycle system. The surface POC concentration can be effectively detected using satellites.
Qiang Li +4 more
doaj +1 more source
Linearized Reconstruction for Diffuse Optical Spectroscopic Imaging [PDF]
, 2018 In this paper, we present a novel reconstruction method for diffuse optical spectroscopic imaging with a commonly used tissue model of optical absorption and scattering.
Ammari, Habib +2 more
core +2 more sources
Fiber Weight Fraction Effect to Acoustic Properties of RHDPE Cantula Composite
Mekanika, 2017 In this study, composites made from recycled HDPE and Cantula fiber have been done and the absorption coefficient have been measured. Composites rHDPE-Cantula were made using hot press for approximately 60 minutes with 170oC temperature while pressure ...
Muhammad Taufik Burhany Hendrowarsito +2 more
doaj +1 more source