Results 21 to 30 of about 1,011,905 (146)

Metrisering

open access: yesSouth African Journal of Business Management, 1970
South Africa is at present experiencing a radical change by the introduction of the metric system. In this article, the advantages of the modern internationally accepted metric system (S.I.) are sketched.
S. J. du Toit
doaj   +1 more source

A Revised PADMA Scoring System for Predicting in-Hospital Mortality in Acute Coronary Syndrome Patient

open access: yesInternational Journal of General Medicine, 2023
Raymond Bernardus, Miftah Pramudyo, Mohammad Rizki Akbar Department of Cardiology and Vascular Medicine, Universitas Padjadjaran, Bandung, West Java, IndonesiaCorrespondence: Miftah Pramudyo, Department of Cardiology and Vascular Medicine, Universitas ...
Bernardus R, Pramudyo M, Akbar MR
doaj  

Study the stability of Si, Ge, Fe and Co in the interior surface of metallic carbon nanotube for hydrogen storage [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2015
In this article, we have performed calculations for studying the stability of the carbon group elements such as Si and Ge and also the magnetic elements like Fe and Co via first principle investigations.
Hadi Arabi   +2 more
doaj   +1 more source

EXAFS STUDY OF c-Si, a-Si AND a-Si : H

open access: yesLe Journal de Physique Colloques, 1986
In order to determine the role played by the hydrogen atoms in a-Si : H, short range order has been investigated using Exafs at the silicon K-edge. Emphasis has been put on topological disorder ; low temperature measurements allowed us to look at its variations.
Menelle, A.   +3 more
openaire   +2 more sources

Electrical Properties of ITO/Al0.7Ga0.3As/ITO Solar Cell With and Without Defects [PDF]

open access: yesJournal of Renewable Energy and Environment
In this research paper, the electrical properties of an ITO/Al0.7Ga0.3As/ITO solar cell were investigated using SILVACO 2D-Atlas. Characterization was performed through static characteristics (I–V) and (P-V)) at room temperature and under standard ...
Mourad Hebali   +6 more
doaj   +1 more source

Recent improvement of silicon absorption in opto-electric devices

open access: yesOpto-Electronic Advances, 2019
Silicon dominates the contemporary electronic industry. However, being an indirect band-gap material, it is a poor absorber of light, which decreases the efficiency of Si-based photodetectors and photovoltaic devices.
Yatsui Takashi
doaj   +1 more source

Sensory Integration - the weight of stimuli. The role of parents

open access: yesJournal of Education, Health and Sport, 2019
INTRODUCTION Sensory integration is a kind of integration or organization of stimuli, the ability to feel and respond properly to news from the world. The organization of stimuli takes place in the brain so that later can use them to create appropriate ...
Katarzyna Maj-Gnat   +4 more
doaj   +1 more source

Combined Effect of Zr and Si on Isothermal Oxidation of Ti [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
In this study, the combined effect of Zr and Si on isothermal oxidation of Ti for 25 and 50 h at 820°C, which is the temperature related to exhaust valves operation, was investigated.
S.-H. Ha   +4 more
doaj   +1 more source

The accumulation of K+, Ca2+, Na+ and P in Sinapis nigra L. grown in the presence of NaCl and silicon [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2019
Saline stress is recognized as one of the most important abiotic stresses for plants in some regions of the world. Recent studies showed that silicon (Si) can play an important role in plant resistance to environmental conditions, such as ...
Daničić Milena M.   +3 more
doaj   +1 more source

PAPR Reduction and Data Security Improvement for OFDM Technique Using Chaos System

open access: yesJournal of Communications Software and Systems, 2019
Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier technique because it produces several advantages such as higher spectral efficiency, high transmission rate, robustness to fading channel and etc..
Muntadher Kadhim Abdullah   +1 more
doaj  

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