Preferred Language
Articles
/
mReajJMBVTCNdQwCXtWh
Plasma Optical Emission Spectroscopy Study of Some Iron Meteorites
...Show More Authors

This study aims to analyze spectra in real-time for λ Draconids, σ Hydrids, μ Virginid, and one sporadic meteor using spectroscopic chemical analysis and diagnose plasma parameters. Good-resolution spectroscopy and a CCD camera for meteor observation were used concurrently to examine the ablation spectra of these meteorites in situ. The Boltzmann and Lorentz methods were then used to determine the temperature and density of electrons, the length of Debye, and the frequency of plasma. Furthermore, spectra data can be analyzed and compared to data from other sources. Spectrum tests can be utilized to identify the chemical structure of meteorites' plasma.

Scopus Crossref
Preview PDF
Quick Preview PDF
Publication Date
Sun Apr 02 2017
Journal Name
Journal Of The Faculty Of Medicine Baghdad
The relationship between obesity and plasma level of factor V and fibrinogen
...Show More Authors

Background:  Obesity is a medical condition in which excess body fat has accumulated to the extent that it has an adverse effect on health. . It measured by BMI (body mass index), obesity is considered when the BMI is ≥ 30 kg/m2. It increases the risk of coronary heart disease, Diabetes Mellitus and Cancer. Chronic inflammation and impaired fibrinolysis in obesity may induce thrombosis.

Aim of study: assess the effect of BMI (body mass index) on plasma level of Factor V and fibrinogen in obese and normal weight subjects.

Methods: This study was started on December 2015 and completed on June 2016, and included 51 obese attended alyarmouk Teaching Hospital. As well 2

... Show More
View Publication Preview PDF
Crossref (1)
Crossref
Publication Date
Sat Apr 30 2022
Journal Name
Iraqi Journal Of Science
Improvement Efficacy of Bacillus Subtilis Cellulose Hydrolyzing by Using Cold Plasma Technique
...Show More Authors

     Bacillus subtilis, an isolate of bacillus genus, was obtained from the laboratories of Ministry of Science and Technology. The best efficient Bacillus subtilis isolate in cellulose and semi-cellulose hydrolysis was treated with Dielectric-barrier Discharge (DBD). Atmospheric cold plasma technique (non-thermal) was used by exposing them at different times (2, 3, 4 and 5 mins) separately as a first stage, and then 60 seconds after any treatment separately as a second stage. After 48 hours, the difference between the plasma source and the sample was fixed at 0.5 cm. The results showed a variation in the growth of the isolate according to the exposure time by the appearance of culture turbidity and the estimation o

... Show More
View Publication Preview PDF
Scopus (2)
Scopus Crossref
Publication Date
Wed Jun 11 2003
Journal Name
Iraqi Journal Of Laser
Modeling of Plasma Affected Thermal Profile in Solids During Laser Materials Processing
...Show More Authors

A new scheme of plasma-mediated thermal coupling has been implemented which yields the temporal distributions of the thermal flux which reaches the metal surface, from which the spatial and temporal temperature profiles can be calculated. The model has shown that the temperature of evaporating surface is determined by the balance between the absorbed power and the rate of energy loss due to evaporation. When the laser power intensity range is 107 to108 W/cm2 the temperature of vapor could increase beyond the critical temperature of plasma ignition, i.e. plasma will be ignited above the metal surface. The plasma density has been analyzed at different values of vapor temperature and pressure using Boltzmann’s code for calculation of elec

... Show More
View Publication Preview PDF
Publication Date
Wed Aug 31 2022
Journal Name
Iraqi Journal Of Science
Influence of Cylindrical Electrode Configuration on Plasma Parameters in a Sputtering System
...Show More Authors

      In the present work, the effect of the cylindrical configurations of the sputtering device electrodes on the plasma parameters (Debye length, electron temperature, electron density, plasma frequency) is studied. Also, the effect of the argon gas pressure on the discharge properties is examined with gas pressures of (0.08, 0.2, 0.4 and 0.6) Torr. The properties of the plasma are diagnosed by optical emission spectrometry. The spectroscopic method is adopted for examining the atomic spectra of argon emission.  The electron temperature is determined by the Boltzmann method. While, the Stark-widening method was employed for calculating the electron number density. The voltage against current curves of the cylindrical sprayer disc

... Show More
View Publication Preview PDF
Scopus (6)
Crossref (2)
Scopus Crossref
Publication Date
Thu Jul 06 2023
Journal Name
Science And Technology Indonesia
Preparation of Al2O3 /PVA Nanocomposite Thin Films by a Plasma Jet Method
...Show More Authors

Alumina thin films have significant applications in the areas of optoelectronics, optics, electrical insulators, sensors and tribology. The novel aspect of this work is that the homogeneous alumina thin films were prepared in several stages to generate a plasma jet. In this paper, aluminium nanoparticles suspended in vinyl alcohol were prepared using exploding wire plasma. TEM analysis was used to determine the size and shape of particles in aluminium and vinyl alcohol suspensions; the TEM images showed that the particle size is 17.2 nm. Aluminium/poly vinyl alcohol (Al/PVA) thin films were prepared using this suspension on quartz substrate by plasma jet technique at room temperature with an argon gas flow rate of 1 L/min. The Al/PV

... Show More
View Publication
Scopus (2)
Crossref (2)
Scopus Crossref
Publication Date
Tue Jul 01 2008
Journal Name
Journal Of The Faculty Of Medicine Baghdad
Effect of Hemodialysis On Plasma Osmolarity In Patients With Chronic Renal Failure
...Show More Authors

Back ground: The study was conducted on fifty patients (27 males and 20 females) with chronic renal failure (CRF) undergoing maintenance hemodialysis (HD), at
artificial Kidney unit, Al- Hakeem Hospital / Najaf, during the perioed from April to June 2008.
Patients & methods: Plasma osmolarity ( Posm), plasma creatinine (P cr ) plasma urea (P urea)>plasma sodium (P Na)and plasma potassium ( P k )were measured for
all patients before and after dialysis.
Results: The paired t -test was used to compare the pre-dialysis values with the post dialysis values and simple linear correlation to study the relation between (P
Na), and ( Posm), p values less than 0.05 considered not significant. The result of&

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sun Mar 01 2020
Journal Name
Iop Conference Series: Materials Science And Engineering
Effect of Cold Atmospheric Pressure Plasma on Fertility Hormones for Female Rats
...Show More Authors
Abstract<p>The direct application of cold atmospheric plasma (CAP) is the main scope of plasma medicine in or on the organism for curative purposes. Cold plasma is both effective in disrupting a wide range of microorganisms including multiple drug resistant ones (MDRs) and to stimulate proliferation of mammalian cells. It has obtained by Floating Electrode Dielectric Barrier Discharge (FE-DBD) system. The present study aimed to show the effected of cold plasma on the fertility hormones LH, Prolactin, Estrogen, and Testosterone hormones for healthy adult female rats (Albino) / bulb c). There are divided into many groups according to time exposure of plasma (15, 30, 60, and 90 second) and a refere</p> ... Show More
View Publication Preview PDF
Scopus (1)
Scopus Crossref
Publication Date
Sun Dec 07 2008
Journal Name
Baghdad Science Journal
Optical Properties for SeTe Thin Films
...Show More Authors

Chalcogenide glasses SeTe have been prepared from the high purity constituent elements .Thin films of SeTe compound have been deposited by thermal evaporation onto glass substrates for different values of film thickness . The effect of varying thickness on the value of the optical gap is reported . The resultant films were in amorphous nature . The transmittance spectra was measured for that films in the wavelength range (400-1100) nm . The energy gap for such films was determined .

View Publication Preview PDF
Crossref
Publication Date
Sun Jun 02 2013
Journal Name
Baghdad Science Journal
Design and Construction Optical Pumping System
...Show More Authors

In this work the design and construction of optical pumping system was presented. The parameters of the pumping source to obtain discharge current density sufficient to shift the flash lamp spectrum towards uv portion of spectrum were measured.The current density was supplied to the flash lamp must be greater than 4000Amp./cm2 to obtain the spectral range wavelength lies between 0.2 and 0.35?m. The current density was obtained by a capacitor 50?F, at 7KV discharge voltage. The applied electrical energy to the flash lamp was more than 1200 J, and the current density was around 5000 Amp./cm2.The electrical parameters of the flash lamp were calculated. The impedance parameters(K0) from the voltage and the peak current pulse was measured in ran

... Show More
View Publication Preview PDF
Crossref
Publication Date
Mon Aug 08 2022
Journal Name
Indian Ecological Society
Study the Epidermis features of Some Iraqi Veronica L. Species (Plantaginaceae)
...Show More Authors