Preferred Language
Articles
/
bsj-2555
Dependence of gamma-ray absorption coefficient on the size of lead particle
...Show More Authors

In this study, dependence of gamma-ray absorption coefficient on the size of Pb particle size ranging from 200µm up to 2.5mm, using different weights of each particle size. The results show that gamma-ray attenuation coefficient is inversely proportional with the size of Pb particle size due to the reduction of the spaces between the lead particles.

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Wed Jun 10 2026
Journal Name
Journal Of The College Of Basic Education
The Effect of The LEAD Strategy on Teamwork Skills Among Second-Year Middle School Students
...Show More Authors

The current research aims to investigate the impact of the LEAD strategy on teamwork skills among second-year intermediate school students in government day schools. Umm Al-Mu'minin School, affiliated with the First Education Directorate of Al-Koura/Qom Abi Urayb, was intentionally selected as the research site for the academic year (2026- 2025). The researcher selected one of two classes as the experimental group, which studies according to the LEAD strategy, and the other as the control group, which studies according to the traditional method. The two research groups were compared in a number of variables, including (chronological age in months, intelligence test, prior knowledge, and a teamwork skills scale). The results showed that the

... Show More
Publication Date
Sun Jul 02 2017
Journal Name
Journal Of Educational And Psychological Researches
The Effect of Lead Time Strategy on the First Intermediate Class Pupils' Achievement in Geography
...Show More Authors

The study aims at finding out the effect of the lead time strategy on the first intermediate class pupils' achievement in geography The partial experimental design of two groups, experimental and control, with pre-post tests is used. The sample is represented in (73) female pupils. The sample is divided into two groups (37) experimental group and (36) control one. The sam ple is selected from first intermediate class pupils ( Al Batol intermediate school for girls) Baghdad Al-karkh-3, for academic year 2015-2016 The researcher has equalized the two groups in several variables: the previous achievement tests, intelligence, age in months, the scores of geography test of first course

View Publication Preview PDF
Publication Date
Mon Jan 01 2024
Journal Name
Aip Conference Proceedings
Gamma irradiation effect on characterization of MoO3 nanostructures films
...Show More Authors

View Publication
Scopus Crossref
Publication Date
Sat Aug 31 2019
Journal Name
Iraqi Journal Of Physics
Effect of cation size on electrochemical properties of polymer electrolyte
...Show More Authors

This study investigates the ionic conduction dependence on the size of alkaline cations in gel polymer electrolytes based on double iodide can enhance by incorporating a salt having a bulky cation.

... Show More
View Publication Preview PDF
Crossref (2)
Crossref
Publication Date
Sun Mar 30 2008
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Studying the Effect of H2SO4/H2O Ratio on the Properties of Positive Electrode in Lead-acid Battery
...Show More Authors

The lead-acid battery has become so dependable in its used applications of automobile starting, emergency lighting and telecommunications, which left an impression that no further investigation is necessary or desirable. While there has been slow continuous improvements in lead-acid battery performance and mainly limited to design and material engineering. This work is mainly devoted to the properties of the active mass of the positive electrode and the acid/water ratio during the manufacturing process. A field study is carried out at the State Battery Manufacturing Company located in Baghdad, to prepare batches of lead mono-oxide with predefined quantities of liquid additives (i.e. sulfuric acid and water). Quality control and laborator

... Show More
View Publication Preview PDF
Publication Date
Sun Jan 01 2012
Journal Name
Aip Conference Proceedings
The electrical conductivity and thermoelectric power dependence on the thicknesses for thermally deposited thin CdS films
...Show More Authors

View Publication
Scopus (7)
Crossref (5)
Scopus Clarivate Crossref
Publication Date
Sun Feb 24 2019
Journal Name
Iraqi Journal Of Physics
Study the effect of gamma radiation on the some properties of glass and glass-ceramic immobilize nuclear waste
...Show More Authors

Vitrifications process one of the important methods to immobilize nuclear waste.  In this research nuclear waste (Strontium Oxides) with molecular weight (5%) was immobilized by vitrification methods in two types of borosilicate glass (c-type) which are glass and glass-ceramics. To investigate the physical, chemical and mechanical properties of glass and glass-ceramic after immobilize nuclear waste these samples irradiated by gamma ray radiation. Co-60 was used as gamma a irradiation with dose rate 0.38 kGy/hr for different period of time. It’s found that gamma radiation affected the glass and glass-ceramic properties. From phase analysis by the x-ray diffraction for glass-ceramic samples proved that at doses 343kGy change the cry

... Show More
View Publication Preview PDF
Crossref (3)
Crossref
Publication Date
Mon Aug 29 2016
Journal Name
World Journal Of Experimental Biosciences (issn: 2313-3937)
Effect of lead on biofilm formation by environmental isolates of Bacillus spp.
...Show More Authors

Biofilm formation is one of the biggest challenges of scientists. Role of heavy metals in forming biofilm is not clear enough. Here, the effect of lead on biofilm formation by Bacillus spp. isolated from soil in terms of biofilm formation and remove was studied. In present study, 10 isolates of Bacillus spp were isolated from soil. The ability of all isolates to form biofilm was evaluated. The effect of lead on biofilm formation was studied by adding lead (pb) before forming biofilm. In another experiment the lead was added after biofilm formation to study the effect of lead on biofilm remove. The current study, showed the ability of all studied isolates to form biofilm. Maximum biofilm formation by Bacillus spp isolate number 8 (B8) follow

... Show More
View Publication Preview PDF
Publication Date
Mon Jul 01 2024
Journal Name
Civil Engineering Journal
The Effect of Oil Contaminated on Collapse Pattern in Gypseous Soil Using Particle Image Velocimetry and Simulation
...Show More Authors

Gypseous soil covers approximately 30% of Iraqi lands and is widely used in geotechnical and construction engineering as it is. The demand for residential complexes has increased, so one of the significant challenges in studying gypsum soil due to its unique behavior is understanding its interaction with foundations, such as strip and square footing. This is because there is a lack of experiments that provide total displacement diagrams or failure envelopes, which are well-considered for non-problematic soil. The aim is to address a comprehensive understanding of the micromechanical properties of dry, saturated, and treated gypseous sandy soils and to analyze the interaction of strip base with this type of soil using particle image

... Show More
View Publication Preview PDF
Scopus (8)
Crossref (8)
Scopus Clarivate Crossref
Publication Date
Sun Mar 01 2020
Journal Name
Journal Of Engineering
Study the Effect of Particle Sizes and Concentration on the Rheological Properties of Iraqi Bentonite for Using as Drilling Fluids
...Show More Authors

The aim of this study is to identify the effect of particle size and to increase the concentration of Iraqi bentonite on rheological properties in order to evaluate its performance and to know if it can be used as drilling fluid without additives or not. In this study, Iraqi bentonite was carried out by mineral composition (XRD), chemical composition (XRF) and Particle size distribution (PSD), and its rheological properties were measured at different particle size and concentration. The results showed that when the particle size of Iraqi bentonite decreased, and the rheological properties were increased with increased concentration of Iraqi bentonite. Also, Iraqi bentonite was unable to use as drilling fluid without certain additives.

... Show More
View Publication Preview PDF
Crossref (2)
Crossref