Results 41 to 50 of about 382,494 (374)

Universal response of optimal granular damping devices [PDF]

open access: yes, 2012
Granular damping devices constitute an emerging technology for the attenuation of vibrations based on the dissipative nature of particle collisions. We show that the performance of such devices is independent of the material properties of the particles ...
Bai   +26 more
core   +2 more sources

Determination of some useful radiation interaction parameters for waste foods

open access: yesNuclear Engineering and Technology, 2018
The mass attenuation coefficients (μ/ρ) of food waste samples (pomegranate peel, acorn cap, lemon peel, mandarin peel, pumpkin peel, grape peel, orange peel, pineapple peel, acorn peel and grape stalk) have been measured employing a Si(Li) detector at 13.
F. Akman   +5 more
doaj   +1 more source

A new photobioreactor for continuous microalgal production in hatcheries based on external-loop airlift and swirling flow [PDF]

open access: yes, 2009
This study deals with the scale of a new photobioreactor for continuous microalgal production in hatcheries. The combination of the state-of-art with the constraints inherent to hatcheries has turned the design into a closed, artificially illuminated ...
Aoubed   +29 more
core   +2 more sources

An investigation on gamma attenuation of soil and oil-soil samples

open access: yesJournal of Radiation Research and Applied Sciences, 2017
In this work, the gamma mass attenuation coefficient is investigated experimentally and theoretically for soil and oil-soil samples have been collected from different locations of Kirkuk city of Iraq.
Ali H. Taqi, Hero J. Khalil
doaj   +1 more source

The impact of chemical modifications on gamma-ray attenuation properties of some WO3-reinforced tellurite glasses

open access: yesOpen Chemistry, 2023
We report the role of the chemical modifications on various gamma-ray attenuation properties of four different tellurite glasses reinforced through WO3.
ALMisned Ghada   +7 more
doaj   +1 more source

Experimental Study on The Gamma Ray Absorption Properties of Lanthanum and Cerium Borides

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2023
The objective of this study is to investigate the mass attenuation coefficients (μm) of lanthanumhexaborides and ceriumhexaborides over a wide photon energy range emitted from the main radioactive sources used in medicine and industry. 125I, 99mTc, 131I,
Esra Kurt   +4 more
doaj   +1 more source

Comparison between MCNP5, Geant4 and experimental data for gamma rays attenuation of PbO–BaO–B2O3 glasses

open access: yesHeliyon, 2019
Monte Carlo simulations, MCNP5 and Geant4 codes were developed to investigate radiation shielding properties of xPbO–(50-x) BaO–50B2O3 (where 5 ≤ x ≤ 45 mol%) consider to be glass systems.
M. Almatari   +4 more
doaj   +1 more source

Evaluation of the Effect of Different Nanoparticles on the Mass Attenuation Coefficient of a Shield in Diagnostic Radiology: A Monte Carlo Study

open access: yesFrontiers in Biomedical Technologies, 2023
Purpose: This research aimed to estimate the Mass Attenuation Coefficient (MAC) for the various nanoparticles in diagnostic imaging in order to assess and compare the changes in a bulk state.
Hossein Khosravi   +3 more
doaj   +1 more source

Sparse signal reconstruction from polychromatic X-ray CT measurements via mass attenuation discretization [PDF]

open access: yes, 2014
We propose a method for reconstructing sparse images from polychromatic x-ray computed tomography (ct) measurements via mass attenuation coefficient discretization. The material of the inspected object and the incident spectrum are assumed to be unknown.
Dogandžić, Aleksandar   +2 more
core   +3 more sources

Evaluation of radioprotection properties of some selected ceramic samples

open access: yesResults in Physics, 2018
In this study, the gamma radiation attenuation features of barium zirconat, barium titanate (IV), magnesium nitride, barium pyrophosphate and silicon carbide were studied using the narrow beam geometrical setup in the energy range of 81 keV–1333 keV. The
M.I. Sayyed   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy