Results 1 to 10 of about 1,080 (140)

The improved extrapolated center of mass enhances the safety of exoskeleton system [PDF]

Scientific Reports
Maintaining the balance and safety of the exoskeleton human–robot coupling system is a prerequisite for realizing the rehabilitation training function. Therefore, research on the balance of lower limb exoskeleton robots has attracted much attention. When
Chang Wang, Jian Cao, Jianhua Zhang, Junhui Wang, Qiang Yang, Song Men   +5 more
doaj   +2 more sources

Experimental and simulation study of shielding features of polyester/HgO composites against photons using GEANT4 and MCNP codes [PDF]

Scientific Reports
In this study, the shielding properties of six samples of the polyester (PE)/HgO composite against photons with an energy range of 0.01–15 MeV (including a 137Cs source with an energy of 662 keV) are evaluated.
Vafa Zebardast, Akbar Abdi Saray
doaj   +2 more sources

Optical, magnetic characterization, and gamma-ray interactions for borate glasses using XCOM program [PDF]

Journal of Theoretical and Applied Physics, 2019
In the present study, the optical characterization of borate glasses with composition 35Li2O − 10ZnO − 55B2O3 − xMnO2: x = 0, 0.5, 1.0, 1.5, and 2.0 wt% has been investigated.
Y. S. Rammah, A. S. Abouhaswa, A. H. Salama, R. El-Mallawany   +3 more
doaj   +2 more sources

Comparison of Monte Carlo simulation of gamma ray attenuation coefficients of amino acids with XCOM program and experimental data

Results in Physics, 2018
The mass attenuation coefficients (μ/ρ), effective atomic numbers (Zeff) and electron densities (Ne) of some amino acids obtained experimentally by the other researchers have been calculated using MCNP5 simulations in the energy range 0.122–1.330 MeV ...
B.O. Elbashir, M.G. Dong, M.I. Sayyed, Shams A.M. Issa, K.A. Matori, M.H.M. Zaid   +5 more
doaj   +2 more sources

Shielding features of concrete types containing sepiolite mineral: Comprehensive study on experimental, XCOM and MCNPX results

Results in Physics, 2018
Natural sepiolite mineral is a naturally occurring clay form belonging to a part of layered silicate. Because of its advantages such as low production cost, light-weight and convenient, it may be selected as an alternative shielding material to others ...
M.I. Sayyed, H.O. Tekin, O. Kılıcoglu, O. Agar, M.H.M. Zaid   +4 more
doaj   +2 more sources

Radiation shielding characteristics of HDPE/tungsten oxide nanocomposites reinforced with graphene oxide and LDPE using Geant4, XCOM and experiment [PDF]

Polyolefins Journal
This research aims to determine and quantify the radiation shielding characteristics of high-density polyethylene/ tungsten oxide (HDPE/WO3) nanocomposites including the linear attenuation coefficient (μ), mass attenuation coefficient (μ/ρ), half-value ...
Shahryar Malekie, Mohammad Amin Hosseini, Ahmadreza Abiz, Fatemeh Bolourinovin, Suffian Mohamad Tajudin   +4 more
doaj   +3 more sources

Exploring green environmental composites as hosts for shielding materials using experimental, theoretical and Geant4 simulation methods [PDF]

Scientific Reports
Rice straw is considered an agricultural waste harmful to the environment, which is abundant in most parts of the world. From this point, the present study is devoted to preparing new composites of two types of glue based on rice straw as a plentiful ...
Mahmoud T. Alabsy, Mahmoud I. Abbas, Mahmoud A. Sharaby, Mohamed Abd Elzaher, A. S. Doma, Ahmed M. El-Khatib   +5 more
doaj   +2 more sources

Investigation of nano MgO loaded polyvinyl chloride polymer in protective clothing as a nonlead materials [PDF]

Heliyon
Recently, investigation of advanced shielding materials to be used as an alternative to lead apron has become important. In the current study, MgO loaded into PVC matrix as a non-lead modern shielding composite was modeled to evaluate its performance on ...
Maryam Nasrabadi, Hossein Tavakoli-Anbaran, Ehsan Ebrahimibasabi   +2 more
doaj   +2 more sources

Examining the specification of gamma-ray shielding with increasing TiO2 concentration in the Bi2O3-ZnO-Pb3O4-Al2O3 glass sample with simulation and computational tools [PDF]

مجله علوم و فنون هسته‌ای, 2023
In this study, using the MCNP Monte Carlo code, the gamma-ray protection properties of the glass system with the composition of (55-x)Bi2O3-15Pb3O4-20Al2O3-10ZnO-xTiO2 with certain concentrations (35, 30, 25, 20, 15, 10, 5 = mol percent) were examined by
A. Arvaneh, A. Asadi, S.A. Hosseini
doaj   +1 more source

Perlit ve Pomza Agregalı Polimer Betonların Radyasyon Zırhlama Performanslarının Araştırılması

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2021
Polimer betonların inşaat mühendisliği uygulamalarında kullanımı yüksek mukavemetlerinin yanı sıra çevresel etkilere ve sıvı temasına karşı geçirimsizlik özelliklerinden dolayı her geçen gün artmaktadır.
Ali Nadi Kaplan, Cengiz Özel
doaj   +1 more source