Preferred Language
Articles
/
ijp-461
The influence of various pH values on the aerogel physical properties by sol-gel technique
...Show More Authors

Hydrophobic silica aerogels were successfully preparation by an ambient pressure drying method from sodium silicate (Na2SiO3) with different pH values (5, 6, 7, 8, 9 and 10). In this study, acidic HCl (1M), a basic NH4OH (1M) were selected as a catalyst to perform the surface modification in a TMCS (trimethylchlorosilane) solution. The surface chemical modification of the aerogels was assured by the Fourier transform infrared (FTIR) spectroscopic studies. Other physical properties, such as pore volume and pore size and specific surface area were determined by Brunauer-Emmett- Teller (BET) method. The effect of pH values on the bulk density of aerogel. The sol–gel parameter pH value in the sol, have marked effects on the physical properties of the silica aerogels produced by this technique. The density and the hydrophobic tendency of the aerogels were significantly influenced.

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Sun Mar 07 2010
Journal Name
Baghdad Science Journal
The Effect of Thickness on Some Optical Properties of Sb2S3 Thin Films Prepared by Chemical Bath Deposition
...Show More Authors

Sb2S3 thin films have been prepared by chemical bath deposition on a glas sub Absorbance and transmittance spectra were recorded in the wavelength range (30-900) nm. The effects of thickness on absorption coefficient, reflectance, refractive index, extinction coefficient, real and imaginary parts of dielectric constant were estimated. It was found that the reflectivity, absorption coefficient , extinction coefficient, real part of dielectric constant and refractive index, all these parameters decrease as the thickness increased, while the imaginary part of the dielectric constant increase as the thickness incre

... Show More
View Publication Preview PDF
Crossref (4)
Crossref
Publication Date
Sun Dec 03 2017
Journal Name
Baghdad Science Journal
Effect of Diffusion Temperature on the some Electrical Properties of CdS:In Thin Films Prepared by Vacuum Evaporation
...Show More Authors

CdS films were prepared by thermal evaporation technique at thickness 1 µm on glass substrates and these films were doped with indium (3%) by thermal diffusion method. The electrical properties of these have been investigated in the range of diffusion temperature (473-623 K)> Activation energy is increased with diffusion temperature unless at 623 K activation energy had been decreased. Hall effect results have shown that all the films n-type except at 573 and 623 K and with increase diffusion temperature both of concentration and mobility carriers were increased.

View Publication Preview PDF
Scopus Crossref
Publication Date
Wed Oct 16 2013
Journal Name
International Journal Of Pharmacy And Pharmaceutical Sciences
Effects of mucoadhesive polymers combination on the properties of lisinpril buccal tablets prepared by wet granulation method
...Show More Authors

Scopus (5)
Scopus
Publication Date
Sat Aug 01 2015
Journal Name
Journal Of Engineering
Values and technology in architecture - the impact and vulnerability
...Show More Authors

Technology is an important factor for achieving architecture as an impact and vulnerability. It represents one of the significant elements in creating the intellectual framework, as well as having its own intellectual breakdown, while values constitute the most important and obviously factor of the community's intellectual. Research aims was determined accordingly by: investigating the role and impact of values and their relationship to technology in architecture.

In this context, the research investigated values and technology in architecture, through discussing their aspects and dimensions in architecture. In the context of values, the research discussed their concept and the related ones to have a concrete def

... Show More
View Publication Preview PDF
Publication Date
Sun Jul 01 2018
Journal Name
Journal Of Educational And Psychological Researches
The Family’s Role in Inculcating the Moral Values of Voluntary Work among Adults
...Show More Authors

The study aims to identify the role of family in inculcating the moral values of voluntary work among adults, as it constitutes the basic social institution that is responsible for raising and control children. It has regarded as the first phase of constituting societies, where family plays a significant role in changing the behavior of individuals positively or negatively through provided patterns. The moral values act as organizer of human relationship in which misusing of these values would affect the interaction between people. This study focuses on how to employ the moral values in voluntary work as a civilized behavior helps in developing and strengthening societies. The researcher adopted the analytical-descriptive approach as mor

... Show More
View Publication Preview PDF
Publication Date
Sat Jul 01 2006
Journal Name
Saudi Medical Journal
Treatment of alopecia areata by topical diclofenac sodium gel in comparison to benzoyl peroxide gel. A novel single blind therapeutic clinical trial
...Show More Authors

KE Sharquie, AA Al-Nuaimy, WJ Kadhum, Saudi medical journal, 2006 - Cited by 3

View Publication
Publication Date
Fri Dec 31 2021
Journal Name
Iraqi Journal Of Laser
The influence of no-core fibre length on the sensitivity Optical fibre Humidity sensor
...Show More Authors

Abstract: Reflection optical fibre Humidity sensor is presented in this work, which is based on no core fibre prepared by splicing a segment of no core fibre (NCF) at different lengths 1-6 cm with fixed diameter 125 µm and a single mode fibre (SMF). The range of humidity inside the chamber is controlled from 30% to 90% RH at temperature ~ 30 °С. The experimental result shows that the resonant wavelength dip shift decreases linearly with an increment of RH% and the sensitivity of the sensor increased linearly with an increasing in the length of NCF. However, a high sensitivity 716.07pm/RH% is obtained at length 5cm with good stability and reputability.  Furthermore, the sensor is shif

... Show More
View Publication Preview PDF
Publication Date
Sun Jan 01 2012
Journal Name
Turkish Journal Of Physics
The influence of confinements on the photon flux spectra in amorphous silicon quantum dots
...Show More Authors

View Publication
Crossref
Publication Date
Mon Feb 20 2023
Journal Name
Baghdad Science Journal
Modeling and Analyzing the Influence of Fear on the Harvested Modified Leslie-Gower Model
...Show More Authors

A modified Leslie-Gower predator-prey model with a Beddington-DeAngelis functional response is proposed and studied. The purpose is to examine the effects of fear and quadratic fixed effort harvesting on the system's dynamic behavior. The model's qualitative properties, such as local equilibria stability, permanence, and global stability, are examined. The analysis of local bifurcation has been studied. It is discovered that the system experiences a saddle-node bifurcation at the survival equilibrium point whereas a transcritical bifurcation occurs at the boundary equilibrium point. Additionally established are the prerequisites for Hopf bifurcation existence. Finally, using MATLAB, a numerical investigation is conducted to verify t

... Show More
View Publication Preview PDF
Scopus (18)
Crossref (3)
Scopus Clarivate Crossref
Publication Date
Sun Oct 01 2023
Journal Name
Baghdad Science Journal
Modeling and Analyzing the Influence of Fear on the Harvested Modified Leslie-Gower Model
...Show More Authors

A modified Leslie-Gower predator-prey model with a Beddington-DeAngelis functional response is proposed and studied. The purpose is to examine the effects of fear and quadratic fixed effort harvesting on the system's dynamic behavior. The model's qualitative properties, such as local equilibria stability, permanence, and global stability, are examined. The analysis of local bifurcation has been studied. It is discovered that the system experiences a saddle-node bifurcation at the survival equilibrium point whereas a transcritical bifurcation occurs at the boundary equilibrium point. Additionally established are the prerequisites for Hopf bifurcation existence. Finally, using MATLAB, a numerical investigation is conducted to verify the va

... Show More
View Publication Preview PDF
Scopus (18)
Crossref (3)
Scopus Crossref