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مجلة ديالى للعلوم الصرفة

ISSN: 83732222/25189255
الجامعة: جامعة ديالى
الكلية: العلوم
اللغة: Arabic and English

This journal is Open Access

حول المجلة

مجلة جامعة ديالى للعلوم الصرفة مجلة علمية فصلية تصدر عن كلية العلوم في جامعة ديالى وباللغتين العربية وألأنكليزية وتهدف للمساهمة في تطوير المعرفة وذلك بنشر البحوث الأصيلة والمراجعات في مختلف العلوم الصرفة والتطبيقية، بحيث تكون سجلاّ للدراسات في هذين المجالين.

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معلومات الاتصال

admin@djps.uodiyala.edu.iq
diyalajournal@gmail.com

جدول المحتويات السنة: 2012 المجلد: 8 العدد: 3 - part 1

Article
Study effect of the thickness and the periodic loading on the dielectric strength for ( polyester – Nanoceramic )
دراسة تأثیر السمك وعدد دورات الانھیار على متانة العزل الكھربائي لمتراكب (بولیستر – نانوسیرامك )

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الخلاصة

This paper includes some factors that effect on the dielectric strength of unsaturated polyester resin which supported by alumina by weight fracture (4%). the samples prepared by casting cold method with thickness about (1.5)mm to (4)mm .the results shows that the dielectric strength decreased when the thickness increased and that is more clear at high thicknesses. but the effect of periodic loading on the dielectric strength of the composite. we notice sharp decrease in the dielectric strength of the composite for all different thicknesses. the microscope pictures of the break down area that taken by optical microscope shows the coaling of the breakdown area of the samples .


Article
Off-Line Signature Identification Using Moment Algorithm
تمییز التوقیع في حالة عدم فتح الخط بأستخدام خوارزمیة العزم

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الخلاصة

In this paper, an off-line signature identification system is presented depending on moment algorithm. The proposed system consists of three steps. First step is enrolment module with the following operations: Transformation from colored image to gray level image, thresholding , thinning. Second step performs features extraction of the original signature by using Moment algorithm . The last step implements signature identification by using matching ratio.


Article
Optical properties of V-doped ZnO thin films prepared by chemical spray pyrolysis method
الخصائص البصریة لأغشیة اوكسید الخارصین المشوب بالفنادیوم المحضرة بالتحلل الكیمیائي الحراري

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الخلاصة

In this research; The effect of vanadium doped ZnO at different ratios (1,3,5,7)% on the optical properties has been studied. These thin films were prepared by the chemical spray pyrolysis technique and deposited on the glass substrates heated at (450 oC).The study showed that; Vanadium doping, changes the optical properties for the ZnO thin films.


Article
Comparison between Radial Basis and Backpropagation Neural Network in Face Detection
مقارنة بین الشبكة العصبیة ذات الأساس الشعاعي وذات الأنتشار العكسي في كشف الوجه

المؤلفون: Abdulbasit Kadhim Shukur عبد الباسط كاظم شكر
الصفحات: 19-44
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الخلاصة

Computer vision is a computer science field belonging to artificial intelligence. The purpose of this branch is allowing computers to understand the physical world .This document proposes comparison between two types of an artificial neural network based face detection system .The proposed system consists of two subsystems ,first subsystem is face detection depending on radial basis neural network after some preprocessing operations, the second subsystem uses backpropagtion neural net to classify the image if it is face or not, also after some preprocessing operations .The final step is comparison between two subsystems in the final step.


Article
Study optical and structural properties of cadmium sulfide membranes is flawed and flawed aluminized
دراسة الخصائص البصرية والتركيبية لاغشية كبريتيد الكادميوم غير المشوبة و المشوبة بالالمنيوم

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الخلاصة

Aluminum doped and undoped Cadmium sulphide thin films were prepared by spray pyrolysis method on glass substrate at 400oC temperature. The effects of Al on the structural and optical properties were investigated. The crystal and orientation of the CdS and CdS:Al were investigated by x-ray diffraction patterns. All the deposited films are polycrystalline and hexagonal phase and Al3+ ions entering the lattice interstitially. The grain sizes were calculated almost (29-55 nm). The optical absorbance and transmittance through spectra in the (350-950 nm) were recorded. The optical absorption coefficient studies reveal that the transition is direct band gap energy. And other optical constants such as extinction coefficient, refractive index, real and imaginary parts of dielectric constant have been determined and analyzed.


Article
Measurement and characterization of radioactive contaminants natural and artificial soil Baghdad models using gamma-ray spectroscopy
قیاس وتوصیف الملوثات الإشعاعیة الطبیعیة والصناعیة في نماذج تربة مدینة بغداد باستعمال مطیافیة أشعة كاما

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الخلاصة

In this work an identification of the ratio active nuclide in soil samples of Baghdad city with the measurement of there specific activity using Gamma-ray spectrometry is given. Twenty six samples of surface soil from Al-Kharch side and Four tenth samples from Al- Rusafa side are collected. Their positions are allocated using GPS system. A Gamma-ray spectrometry system type (DSA2000) is used in measurements with (HpGe) detector with 50% efficiency and 2.2 keV at the 1332 keV line emitted from (60Co) source. The results of specific activity averages of the radio active nuclide (208Tl or 228Ac) , (214Pb or 214Bi) , (40K) , (137Cs) in surface soil of Al-Kharch and Al-Rusafa sides are (47.199± 2.047), (47.032±3.147), (819.901±11.134), (7.49±0.759) Bq/kg respectively for Al-Kharch soil and (51.703±2.229), (49.388±32.361), (852.715±1.798), (7.54±0.804) Bq/kg for Al- Rusafa soil, which are close, for example, to the uranium percentage as estimated by (UNCERR) which is (48.89) Bq/kg. It may be concluded that no indication of high level of specific activity is observed and results are within the ordinary levels.


Article
Image Denoising Based Using Hybrid Techniques Mixed between (Hard and Soft Threshold) With Multiwavelet Transform and Multi-Stage Vector Quantization
أزالة الضوضاء من الصورة بأستخدام تقنیات ھجینة مدموجة بین المدخل المادي والبرمجي مع تحویل متعدد المویجة ومكمم المتجھ متعدد المراحل

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الخلاصة

The Image denoising naturally corrupted by noise is a classical problem in the field of signal or image processing. Denoising of a natural images corrupted by Gaussian noise using new techniques of multiwavelet techniques depended on losing of some error are occurs in reconstruct in pre-processing of multiwavelet then the new multiwavelet are very effective because of its ability to reduce losing of some data in reconstruct. Multi-wavelet can satisfy with symmetry and asymmetry which are very important characteristics in signal processing The better denoising result depends on the degree of the noise. Generally, its energy is distributed over low frequency band while both its noise and details are distributed over high frequency band. Corresponding hard threshold used in different scale high frequency sub-bands. In this paper proposed to indicate the suitability of different multiwavelet based on using the mixing between Hard and Soft threshold that named as Hybrid threshold technical depended on the parts of the multiwavelet decomposition, according the value of noise in the decomposition parts used the threshold techniques for example using the soft threshold on the two first parts LL and LH decompositions because that the amount value of pixels in this part is Low frequency and some of Hard and then using the Hard threshold of the remaining two parts HL and HH part because the amount value of pixels is High frequency, then the performance calculation of image denoising algorithm in terms of PSNR value. Finally it's compare between multiwavelet traditional techniques Hard, Soft threshold and produced best denoised image using (Hybrid threshold) image denoising algorithm in terms of PSNR Values based on mixed thresolding (hard and soft thresolding) by using the first (Hard threshold) in LL and LH part and the second (soft thresolding) in HL and HH part from multiwavelet decomposition.


Article
Effect of Thickness on the Electronic Transitions of NiO Thin Films Prepared by Chemical Spray Prolysis
تأثیر السمك على الأنتقالات الألكترونیة لأغشیة NiO المحضرة بطریقة التحليل الكيميائي الحراري

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الخلاصة

Attended thin films of nickel oxide with different thickness on glass bases using thermochemical decomposition method, where he was studying the impact of thickness to nickel oxide on the electronic transitions of the energy gap. Absorbance was calculated within the range of wavelengths (900-300) and different thickness nm (140,180,240,280,330), as results showed that the absorbance less increase wavelength and all nickel oxide membranes while increasing absorbance increase the thickness of the membrane and the optical energy gap of the thin membranes under increasing thickness.


Article
effect Category and Aljprlin acid compound fertilizer NPK and overlap in the concentration of some micro-nutrients in plant chamomile Chamomile
تأثير الصنف وحامض الجبرلين والسماد المركب NPK وتداخلاتها في تركيز بعض العناصر الغذائية الصغرى في نبات البابونج Chamomile

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الخلاصة

A field experiment was conducted botanical garden belonging to the Department of Life Sciences in the College of Education (Ibn al-Haytham), the University of Baghdad marked growth 2009-2010. The study included the impact of five concentrations of acid Aljprlin (25, 50, 75 and 100 and 125 mg. Liter -1) in addition to the focus zero transaction control, with two levels of compound fertilizer (NPK (17:17:17 (200 and 400 kg. AH -1) in addition to the level zero transaction control and overlap The results showed a significant effect in the concentration of nutrients studied increase concentrations acid Aljibrain and fertilizer levels above comparison with plants control and both cultivars. Regarding the overlap between factors study was morally is the other has given treatment (acid concentration Aljprlin 75 mg. Liter -1 and fertilizer level 400 kg. AH -1) higher values ​​compared with the control treatment in the first cutting, and an increase of 44.93%, 146.43% and 120.25%, respectively, compared with the control treatment in the second cutting, while giving the same concentration above of Aljprlin acid and 200 kg fertilizer level. e -1 higher value for the concentration of zinc, an increase of 31.47% and 46.45% compared with the control treatment both Alhstein respectively. The cultivar surpassed German domestic product in the first cutting, while German cultivar surpassed domestic product in the second cutting.


Article
OXIDATIVE DESULFURIZATION OF GASOIL USING IMPROVING SELECTIVITY FOR ACTIVE CARBON OF RICE HUSK
الإزالة الكبريتية بالأكسدة من زيت الغاز بواسطة تحسين الانتقائية للكاربون الفعال من قشور الرز

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الخلاصة

In view of the impact and risks of Sulfur in Gasoil on the combustion processes and Environmental pollution, A study was conducted to eliminated or reduce the percentage of sulfur in the Gasoil (bejji refinery),by Oxidative Desulfurization (ODS) procedure with hydrogen peroxide/acetic acid as oxidized reagent using active carbon of (Iraq rice Husk) as supported catalysts has been studied, active carbon for rice husk was activated chemically with (ZnCl2 , NaOH) and physically by (CO2 , N2) . The experimental results indicated that the oxidation desulfurization gave of a significantly reduced the value of sulfur (from 0.954 to o.310)% and The maximum observed sulfur removal in the present oxidative desulfurization system was 77.3%. The rates of the catalytic oxidative desulfurization reaction were found to be increase with the temperature, hydrogen peroxide and surface area of active carbon increase.


Article
Synthesis , characterize and biological studies of (Cr(III) ,Mn(II) ,Zn(II)and Cd(II)) complexs with Schiff-base ligand
معقدات احادية النواة الجديدة مع قاعدة شف تحضير ، تشخيص و دراسة الفعالية البايلوجية

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الخلاصة

The new multidentate Schiff-base ligand (2,6-bis-[(3-phenyl thioureaimino)-methyl]-phenol) HL and its monomeric metal complexes with Cr(III) ,Mn(II) ,Zn(II)and Cd(II) are reported. The ligand HL was derived from the condensa


Article
Study Effect of pesticide Alvasaybamthen and fungus Beauveria bassiana in the loss of an insect flour beetle Alsdih Tribolum castaneum
دراسة تاثير مبيد الفاسايبؤمثين وفطر Beauveria bassiana في هلاك حشرة خنفساء الطحين الصدئية Tribolum castaneum

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الخلاصة

As used three concentrations of the fungus 1.5%, 0.5,1 and was treated on the role Full insect Note the effect after 24 and 48 hours of treatment and the results showed that impact of the fungus used in the study to death full role of the insect, as the results showed in the test Toxic Effect of fungus within 24 to 48 hours from 80% - 100%, while the lowest percentage was killed has reached % 20% - 80% treatment outweigh focus 1.5%, with the highest rate was killed to focus At a concentration of 0.5% during the same time. The study also influence toxic pesticide Alpha - cypermethrin are full 0.5 and the transaction has the full role and notice results within 24 to 48 hours The results showed at a concentration of 1.5% that the murder rate stood at 90% -100% either at a concentration of 0.5%, the percentage of murder 20% -80% within 24 to 48 hours.


Article
Compared to the impact of concentrate feed and forage to resist infection worms in lambs Alawasih Haemonchus contortus
مقارنة تأثیر العلف المركز والعلف الأخضر على مقاومة الخمج بدیدان في الحملان العواسیة Haemonchus contortus

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الخلاصة

Showed this study to know the effect of concentrate feed and forage to resist sheep Alawasih parasite infection using 500 larvae / kg body weight of worms Haemonchus contortus And use of the 20 pregnancy 8-9 months old campaigns were divided into two groups of ten lambs someone. Given concentrate feed and the other was given green fodder. And divided each group into two groups control group and amounted to 4 animals, and other group infection and reached 6 animals were studied infection through follow-up of the following criteria: the number of eggs / g of feces, weights animals, weight wool in addition to standard vessels that included the size of blood cells stacked PVC . Given concentrate feed and the other was given green fodder. And divided each group into two groups control group and amounted to 4 animals, and other group infection and reached 6 animals were studied infection through follow-up of the following criteria: the number of eggs / g of feces, weights animals, weight wool in addition to standard vessels that included the size of blood cells stacked PVC . The results were recorded significant difference clear on the type of feeding and different levels of resistance to sheep in terms of the size of infection and productive efficiency (number of eggs raised in the stool, the increase gravimetric, weight wool). As the results showed that There significant effect clear measurements vessels (size blood cells stacked between Totals control Almkhmjh. were more affected by changes in Hb) and the amount of hemoglobin PCV totals of green fodder. proving that feed the center strengthened resistance lambs injured worms.


Article
Synthesis and characterization of p-phenylenediamine N,N-butan-3- one oxime ligand and its complexes with some transition metals ions Ni (ɪɪ) , Pd(ɪɪ) , Pt(ɪɪ) , Cu(ɪɪ) and Co(ɪɪ)
توليف وتوصيف ف -3 فينيلين N N-butan، - واحد يغند أوكسيم والمجمعات مع بعض أيونات المعادن الانتقالية Ni (ɪɪ) , Pd(ɪɪ) , Pt(ɪɪ) , Cu(ɪɪ) and Co(ɪɪ)

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الخلاصة

A new ligand incorporating a dioxime moiety, p-phenylenediamine-N N-butane-3-one oxime, (H2L) has been prepared by reacting 1,4- phenylenediamine with 2,3- butanedionemono oxime. The ligand has been characterized by elemental analysis , i.r. ,u.v.- vis. , 1H n.m.r and EI mass spectroscopies . The ligand reacted with some metal ions to give complexes of the general formulae : [ M(HL)]+, where M= Ni(ɪɪ) ,Pd(ɪɪ) Pt(ɪɪ) ,Cu(ɪɪ) and Co(ɪɪ) . The complexes were characterized by elemental analysis (C.H.N and A.A) along with i.r. u.v.- vis , spectroscopies , molar conductance and magnetic moment measurements , indicating a 1:1 metal : ligand ratio , and the metal ions are coordinated with ligand via N atoms of oxime and imine nitrogen atoms ( C= N) . According to the above measurements , we concluded : A square planar geometry was proposed for Ni () , Pd () , and Pt() complexes and a distorted tetrahedral geometry is proposed for Cu() , and Co(complexes .


Article
Antibacterial effect of date palm (Phoenix dactylifera L.) pit aqueous extract on some bacteria cause urinary tract infection
تأثیر المستخلص المائي لنوى التمر على بعض أنواع البكتریا المسببة لالتھاب المجار ي البولیة

المؤلفون: Najla'a Nabhan Yassein نجلاء نبھان یاسین
الصفحات: 112-120
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الخلاصة

The present work was carried out to study the impact of date palm pit aqueous extract as an antibacterial on four species of pathogenic bacteria (Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris and Pseudomonas aeruginosa). Four concentrations of date palm pit aqueous extract were prepared by using normal saline: 200,100,50 and 25(mg/ml).200 and 100(mg/ml) were the most effective concentrations on the tested bacteria except K. pneumoniae which showed full resistance to all extract concentrations. Date palm pit extract was somewhat more effective in inhibiting growth of bacteria as compared with antibiotics includes trimethoprime, gentamycin and rifampin.


Article
Impact of electric voltage, the distance between the poles and the temperature on the electrical deposition of aluminum
تأثیر الجھد الكھربائي ، المسافة بین القطبین ودرجة الحرارة على الترسیب الكھربائي للألمنیوم

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الخلاصة

In this work ,we had depended on the parameters affecting the electro deposition process for Aluminum from aqueous solution consisting of Aluminum Sulfate(Al2(SO4)3.18H2O) ,were studied : such as voltage ,distance between electrodes and Temperature .The results showed that weight of Aluminum increased with the increasing of voltage ,Temperature ,but decreased with the increase of distance between electrodes.


Article
The study of fatigue behavior of epoxy composites reinforced by glass and Kevlar fibers
دراسة خاصیة الكلال لمتراكبات الایبوكسي المدعمة بألیاف الكفلر والزجاج

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الخلاصة

Fatigue behavior for three layer glass and Kevlar woven roving (0° - 90°) fibers have been studied by rotary bending method by S-N curves these curves have determined fatigue life and fatigue limit and fatigue strength of composite . The test specimens were prepared by hand lay-up method the epoxy resin used as a matrix type (Quick mast 105) in prepared material composite where reinforced this matrix by two types of fibers( Kevlar -49) and woven roving glass that we can see it in (1-1) table Sinusoidal wave which is formed of variable stress amplitudes at 15 Hz cycles was employed in the fatigue test and (10 mm) deflection arrival to numbers of cycle failure limit. The results show us the reinforcement has important act to increased resistance to the fatigue compared with specimens have not reinforcement this side the specimens reinforcement of glass fiber have resistance to fatigue and fatigue life better than the specimens reinforcement of Kevlar fiber


Article
Determining the effect of various physicochemical factors on inhibition activity of Lactobacillus acidophilus against Klebsiella pneumonia isolated from hospital-acquired infections by using optical density assay
Lactobacillus تحدید تأثیر مختلف العوامل الفیزیوكیمیائیة على الفعالیة التثبیطیة ل معزولة من مرضى الإصابات المكتسبة Klebsiella pneumonia ضد acidophilus من المستشفیات بواسطة استخدام تقنیة قیاس الكثافة الضوئیة

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الخلاصة

This study aims to determine the effect of using Lactobacillus acidophilus in various physicochemical factors to inhibit the growth of Klebsiella pneumoniae isolated from patients of hospital-acquired infections by using optical density technique. The result revealed that different factors like pH, incubation temperature degree, incubation periods and concentrations, seemed to affect on inhibition activity of L. acidophilus. Maximum activity was noted at pH 3, temperature 45°C, incubation for 48 hr and three fold concentrations which clarified by values O.D reached to 0.111, 0.775, 0.660 and 0.040 respectively whereas the lowest effect appeared after the use of pH 9, temperature 15°C, incubation for24 hr and one fold concentrations where the inhibition values reached to 1.899, 1.180, 1.161 and 1.411respectively The results ensured that L. acidophilus sufficiency inhibited growth of K. pneumoniae with promising encourage to use the L.acidophilus as biotherapeutic agents against K. pneumoniae infections.


Article
Study complement activity and humoral immune response in chronic hepatitis B patients
دراسة فعالیة المتمم والاستجابة المناعیة الخلطیة في مرضى التھاب الكبد الفیروسي البائي المزمن

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الخلاصة

Fifty (50) serum samples were collected from patients with chronic hepatitis B (CHB) who were admitted to Hepatology and Gastroenterology Teaching Hospital in Baghdad, aged from 20-65 years during the period from February / 2008 and the mid of February / 2009, also serum samples were collected from Fifty (50) healthy HBs Ag carrier was discovered accidentally through attending blood bank for donation of blood, aged from 18-52 years and served as a control group. In this study, the serum levels of immunoglobulins (Igs) including IgG ,IgM , IgA are evaluated in both groups . The results review that the median level of IgG and IgA is higher significantly in chronic patients than carrier group, whereas the median level of IgM is slightly increase in chronic patients than carrier group, on other hand, the serum complement components (C3 and C4) were evaluated in CHB patients in comparison to carrier group. It was found that there was a significant decrease in the levels of C3 and C4 among chronic group compared to carrier group. The results of this study indicate that serum complement and immunoglobulins activities was impaired in chronic hepatitis B patients


Article
Approach for screening of plasmid curing agents from microorganisms by agar overlay technique
طریقة للتحري عن العوامل العلاجیة البلازمیدیة من الاحیاء المجھریة بواسطة تقنیة تراكب الوسط

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الخلاصة

Till date many compounds having an ability to cure the organisms of the bacterial resistance, have been identified. These compounds come from different sources like plants, oils (natural) and chemicals (synthetic). However, there are no reports of any plasmid curing compounds being identified from microbial sources. In this work we have tried to find whether microbes produce such compounds or not. We screened micro-organisms from soil We designed a novel technique of agar overlay for this purpose. This technique is relatively simple and efficient as compared other time consuming and laborious techniques used for screening. During this screening, potential microorganisms producing curing agents were found. Further work needs to be carried out to identify and characterize such natural compounds. These compounds could hold a promise for being used as potential additives to antimicrobials so as to make antimicrobial chemotherapy more effective


Article
First trimester spontaneous abortion: a clinicopathological view
مرضیة سریریة الاجھاض التلقائي في الثلث الاول من الحمل: نظرة

المؤلفون: Sarmad Raheem Kareem سرمد رحیم كریم
الصفحات: 159-174
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الخلاصة

A study of 24 cases of first trimester spontaneous abortions and ten normal ongoing first trimester pregnancies are included. Clinical information (maternal age, gestational age, gravidity, parity, history of prior live or dead babies, residency, history of other diseases, infectious and non infectious.) and laboratory assessment of the cases (complete blood count, biochemical assay of serum malondialdehyde level and pathological confirmation of abortion with measurement of trophoblastic villous diameter).Most cases were found to be within the age group (30-39 years) with higher gravidity and history of previous abortion. Hematological profile( except ESR) and serum malondialdehyde show no significant difference between abortion cases and those with normal first trimester pregnancy, but the malondialdehyde level have a strong statistical relation with trophoblastic villous diameter indicating the possibility of underlying relationship between oxidant injury and villous diameter leading to hydropic or even molar changes.


Article
Relationship Between Oxidative Stress with Seminal Plasma Copper levels in Diyala infertile Men
العلاقة بین الجھد التاكسدي ومستویات النحاس في البلازماالمنویه للمرضى العقیمین في محافظة دیالى

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الخلاصة

The objective of the present study was to examine the published literature on the role of copper and malondialdehyde levels in seminal plasma of oligospermic, with normopermic men.Methods: The present study was conducted at Baquba Medical Hospital and a few commercial pathological laboratories in Diyala.. The patients attended the clinical with the complaint of infertility and were the male partner of married couples. The study was conducted from November 2011 to January 2012. And the infertility clinics were visited regularly to collect samples and relevant information of infertile subjects over the period at this time. 100 patients who fulfilled the inclusion criteria were selected for the study. Male subjects (23-42) years age with a mean±SDS=32.4±4.4 years There were 20 patients with oligospermia. Another twenty (25) fertile Iraqi men within a similar age group were studied as control. The control samples were treated similarly as the test samples. Copper in sample was assayed by using an atomic absorption spectrophotometric technique. Malondia ldehyde was measured calorimetrically using thiobarbituric acid assay which detects thiobarbituric acid reactive substances. Results: Seminal plasma copper level decreased non-significantly in the oligozoospermic group compared to the control group. Whereas,. On the other hand, malondialdehyde levels which is an end product of lipid peroxidation were significantly elevated (p=0.000) in all the infertility groups studied.


Article
Measurement of radon gas concentration in cement samples by using nuclear track detector (CR-39)
قیاس تركیز غاز الرادون في نماذج السمنت باستخدام كاشف الأثر النووي (CR-39)

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الخلاصة

In the present work, we have measured the radon gas concentration in ten cement samples from different countries ,they are , (Iraq, Egypt ,Iran, Lebanon ,Turkyi and Jordan) by using alpha-emitters registrations which are emitted form radon gas in (CR-39) nuclear track detector. The results obtained have shown that the highest average radon gas concentration in cement samples which was (200 Bq/m3) origin Iran, while the lowest average radon gas concentration in cement samples which was (84.4 Bq/m3) origin Iraq (Najif).The present results show that the radon gas concentration in all cements samples is below the allowed limit from (International Commission of Radiation Protection) (ICRP) agency.


Article
The efficiency of contaminated water treatment by using Nano_colloidal silver technique
كفاءة تعقیم المیاه الملوثة بأستخدام تقنیة عالق الفضة النانومتري

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الخلاصة

This work investigates natural antibiotic material for drinking water by using nano_ colloidal silver technique. The nano colloidal silver suspension (CSS) prepared using electrochemical method and characterized physically. The efficiency of bacterial treatment of Dyala river water and Tigris river water from the side of Gherai’t using nano- colloidal silver suspension was studied. The silver concentration as antibacterial agent was examined for water samples took from different sides of Dyala River. The results of these tests show that good activity can be obtained of nano-collidal silver as new purification technique for contaminated water.


Article
A Correction Factor to Investigate a Theoretical Analysis Agreement for Determination of the Hot Plasma Parameters for the D-D fusion reactions
حساب معامل التصحیح لدراسة التوافق التحلیلي النظري في تعیین معلمات البلازما الساخنة لتفاعلات D-D الاندماجیة

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الخلاصة

Many applications depend on the fundamental physical parameters involving with the phenomena of nuclear fusion reaction using the deuterium as a fuel. For these cases available experimental or empirical data about the total cross-section and other parameters for D-D fusion reactions play an important rules in adjusting the operation of many mine devices such as plasma focus, z-pinch. In the present work and in order to arrive to an agreement between the experimental and theoretical parameters it is necessary to insert a correction factor in the empirical formulas especially those deal with the total cross section for D-D fusion reactions.


Article
Theoretical Model of Charge Transport Processes In Metal/ Semiconductor Interfaces
أنموذج نظري لعملية انتقال الشحنة لنظام سطح معدن/ شبه موصل

المؤلفون: Hadi,J.,M.,Al-Agealy ھادي جبار مجبل العكیلي
الصفحات: 210-224
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الخلاصة

The dynamics of charge transport across metal/semiconductor interface system are studied using a model that derives according to the quantum theory. We suppose continuum level model for donor state |φ_↓ D> and acceptor state |φ_↓ A> . Marcus– Hush semi classical theory adapted to evaluated the reorientation free energy. The rate constant of charge transfer are calculated with assume a continuum level model .Our result for calculation of rate constant of charge transfer show a good agreement with experimental data. the ratio of rate thus agreement with result ≈1 [28] ,indicated the system Au/ GaAs is active media for applied in devices technology according with Au/ InAs system.


Article
Fabrication and study detector work in the visible region prepared by thermal evaporation
تصنیع كاشف یعمل في المنطقة المرئیة من الطیف مصنع بطریقة التبخیر الحراري بالفراغ

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الخلاصة

In the present paper silicon p-n junction detector of 600 ± 25 nm peak response has been characterized. This peak was obtained by depositing high purity Pt metal thin film onto sensitive side of the p-n junction (donor-side), this film reduce the responsivety in the near-IR region (800-1100) nm and lead to peak response at 600 nm. The white light photovoltaic characteristics, spectral responsivity, and quantum efficiency are greatly depended on photon transmittion of Pt film .Experimental results showed that the detector responsivity in the near IR region was reduced to about 18.5% from its initial value after depositing 50 nm Pt film.


Article
Variation of lattice parameter, average grain size, dielectric constant and saturation magnetization with different temperature for 0.30Ni0.7Zn0.3Fe2O4+ 0.70 PLZT composite by Co-precipitation method
تغایر معاملات الشبیكة ، معدل الحجم الحبیبي ، ثابت العزل الكھربائي والإشباع 0.30 درجات الحرارة للمركب باختلاف المغناطیسي Ni0.7Zn0.3Fe2O4+ 0.70 PLZT بطریقة الترسیب الكیمیائي

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الخلاصة

Magnetoelectric composites containing Ni0.7Zn0.3Fe2O4 and Pb0.93La0.07(Zr0.60Ti0.40)O3 phases have been prepared by chemical co-precipitation method. The structure and morphology of the composites were examined by means of X-ray diffraction (XRD) and scanning electron microscopic (SEM) The XRD result showed that the composites consisted of spinel Ni0.7Zn0.3Fe2O4 and perovskite PLZT annealing at temperature higher than 700 oC. The average grain size for the piezoelectric phase of the composite was found to increase the overall dielectric and ferroelectric properties of the composite increased with increasing in sintering temperature. Variation of dielectric constant (ε) and dielectric loss (tanδ) with frequency for 0.30NZFO + 0.70PLZT composite with annealed at different temperature showed dispersion in the low frequency range. The variation of dielectric constant with temperature reflects DPT type behaviour. The dielectric properties are strongly influenced by interface phenomena (Maxwell-Wagner) due to the local electrical inhomgeneity. At low frequency range, the composite showed the dielectric dispersion is associated with very high polarization. The peak value of dielectric constant for composite decreased with increasing its sintering temperature. coercivity, saturation magnetization and squareeness have been found to vary with concentration of ferrite phase and annealing temperature due to the increase in crystallite size. The maximum value of the magnetoelectric conversion factor (dE/dH)max equal to 5.2 mV/cm.Oe is observed for 30%NZFO – 70% PLZT composites when sintered at 1100 oC.


Article
Preparation of colloidal Gold Nano particles Using Electro Chemical Method
تحضیر عوالق جسیمات الذھب النانویة بطریقة كھروكیمیائیة

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الخلاصة

In this paper a process of electro-chemical system used for preparing colloidal Nano Gold particles in electrolyte medium. Thin films of gold nano particles and suspension gold prepared and examined by x-ray diffraction method. furthermore; Uv-vis spectra spectrophotometer was used to determined optical properties . Results show the electrochemical method is simple method to syntheses of colloidal Nano Gold particles with average particles less than of 50 nm .The fabrication parameters such as I(mA) , V(v) and T(Co)) were examined . Red to grey color changed of gold suspension that related to preparation parameters and particle size was studied.


Article
Coating Silicon and Glass Substrate with Colloidal Silver Nano Particles Using Thermal Spray Pyrolysis and Studying Electrical Properties
طلاء قواعد من الزجاج والسلیكون بعوالق جسیمات الفضة النانویة بأستخدام تقنیة الرش الحراري ودراسة مواصفاتھا الكھربائیة

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الخلاصة

The aim of this research is to use thermal spray pyrolysis technique for coating silicon and glass surfaces with colloidal silver nano particles solutions . The importance of nanotechnology methods for nano thin films is due to their advanced properties in industry applications.is important in our point of view in industry applications for nano thin films. Spraying parameters such as spraying time, substrate temperatures, solution temperature, elec8trical current, voltage and the electrical frequency with colloidal silver nano particles solutions. Silver thin film coating was examined. Particle size distribution was determined using AFM technique and electrical conductivity were measured for nano silver thin films.


Article
Edge detection of noisy image using different mask filters
الكشف عن حافة الصورة الصاخبة باستخدام مرشحات قناع مختلفة

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الخلاصة

Operation based on second partial derivates are very useful in edge detection of image. in this research we have been used different mask filter such as (laplacian, sobel , Robert) applying on noisy and enhance image respectively. First; adaptive filter consist of duplicated of two filters (lee and Gaussian) have been apply to enhance the spkle noisy image, then mask filters have been used to develop the edge detection result, after that the comparison with original image has been achieved using statistical criteria.


Article
Preparation of Nanocrystalline Copper Doped CdS Thin Films by Spray Pyrolysis Method
تحضیر أغشیة CdS الرقيقة النانوية غير المشوبة والمشوبة بالنحاس بطریقة الترسیب الكیمیائي الحراري

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الخلاصة

Nanocrystalline undoped and Cu-doped thin films have been prepared on glass substrates at 673 K by spray pyrolysis CSP. The effect of Cu-doped on structural and optical properties was studied. XRD data indicates the formation of hexagonal nanocrystalline CdS and CdS:Cu thin films, and Cu2+ ions entering the lattice substitutionally. The optical properties of these films were studied by measuring their optical transmission and their absorption spectra in the 300-900 nm range. The optical absorption studies reveal that the transition is direct with band gap value (2.417eV) for undoped and in the range (2.413-2.4eV) for doped films. Other important optical constants, such as extinction coefficient, refractive index and dielectric constant was calculated and analyzed.


Article
Characterization of (PVA- BaSO4.5H2O) Composites
دراسة خصائص متراكبات (PVA- BaSO4.5H2O)

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الخلاصة

In this study , the dielectric properties of composites of poly-vinyl alcohol(PVA) as matrix and BaSO4.5H2O as additive have been studied with different weight percentages of BaSO4.5H2O. The composites were prepared using casting technique. The dielectric properties were measured in the frequency range from (100-107) Hz at room temperature. The results show that the dielectric properties are increasing with increase the weight percentages of BaSO4.5H2O. Also, dielectric constant, dielectric loss and A.C electrical conductivity are changed with increase the frequency

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