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مجلة ديالى للعلوم الصرفة

ISSN: 83732222
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@sciencesmag.uodiyala.edu.iq
diyalajps@yahoo.com

جدول المحتويات السنة: 2013 المجلد: 9 العدد: 3

Article
PREPARATION OF Single and multilayer RAMs of (Ni 0.4 Zn 0.6) 1-x (Fe2O3) 1+x Ferrite And studying Its Electrical And Magnetic Properties
تحضير ماصات رادارية متعددة الطبقات لفيرايت نوع(Ni0.4 Zn 0.6 )1-x(Fe2O3)1+x ودراسة خواصها المغناطيسية والكهربائية

المؤلفون: Dr AHMED RAFEEQ د. احمد رفيق عبدالمجيد
الصفحات: 1-10
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الخلاصة

Composite RAM materials single and multi layer at x-Band frequencies (8-12.5GHz) were prepared by using ferrite of spindle type( Ni0.4 Zn 0.6) 1-x (Fe2o3)1+x as a filler and resins as matrix. The attenuation properties of the used ferrite (Ni0.4 Zn 0.6) 1-x (Fe2o3)1+x in our work such as reflection loss (-dB) and tangent loss tan δμ ,tan δE and the angle of loss δμ δE were studied carefully. Power technology Method used in our work to prepare the ferrite at sintering temperature 1300 as Filler for composite absorber. Attenuation character istic test was done by using slotted waveguide system show that ferrite mentioned above . having maximum attenuation (-29.4dB) at frequency 11.8GHz and (-20.8 dB ) at frequency 11.4 GHz (-34.1 dB) at frequency (10.2 GHz) and (-46.06) at frequency (10GHz) for different values of (x) .To increase the bandwidth frequencies we prepared multi layer absorber by using epoxy or PU resins as a matrix and add carbon- black powders to build multi-layer ferrite composites .We found that we have built excellent multi- layer RAMs with attenuation Greater than (-10dB) consisted of four layers less than 4mm thickness to cover the X-band frequencies with broadband width equal 3,5 GHz.


Article
Effect of Thickness Variation on The Optical Properties of PVA: Ni (CH3COO)2 films
تأثير تغيير السمك على الخصائص البصرية لاغشية PVA: Ni (CH3COO)2

المؤلفون: Tahseen. H. Mubarak تحسين حسين مبارك
الصفحات: 1-13
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الخلاصة

(PVA: Ni (CH3COO)2) films with different thicknesses were prepared by casting method. The thickness of the prepared films were (15, 20and 25) µm . The optical transmission (T %)was measured in the wavelength range of (190-900) nm .The effect of thickness increasing on optical properties such as transmittance, reflectance, absorption coefficient, refractive index, extinction coefficient in addition of the Real and Imaginary Part of dielectric constant was studied. This study reveals that all these parameters affected by the increasing of the thickness, and it also found that the optical energy gap has been increased with the increasing of the thickness, but the Urbach energy was decreased with the increasing of the thickness.


Article
A study of Enterococcus faecalis isolates sensitivity to isolated antibiotics from different disease sources.
دراسة حساسية عزلات Enterococcus faecalis المعزولة من مصادر مرضية مختلفة للمضادات الحيوية

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الخلاصة

The total number of 310 different clinical samples were collected from Baquba Educational Hospital and Al - Batol Hospital for Maternity and Children in Baquba city from the beginning of March to the end of September 2009 . The characterizations of morphology and biochemical test for isolates showed that 28 isolates (9%) belonged to E. faecalis. The sensitivity of isolates were tested against 23 different antibiotics.They showed resistance of about (100%) against Aztreonam, Amikacin, Co -Trimoxazole, Cephalexin and Cefotaxime, while they were sensitive about (100%) against Amoxicillin, Nitrofurantoin, Imipenem and Ampicillin, while they showed a various resistance to another antibiotics involved in this study .


Article
The Role of Nozzle and its Stand off distance in metal –cutting with "CO2 laser –gas jet"
دور النوزل والمسافة الفاصلة في قطع المعادن بواسطة ليزر ثاني اوكسيد الكاربون ودفق غازي

المؤلفون: Jasim Hassan Rasheed جاسم حسن رشيد
الصفحات: 14-27
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الخلاصة

Abstract: The aim of the present research is to study the role of nozzle and the effect of the stand –off distance which are the most important parameters for cutting mild steel by "CO2 laser – gas jet . Relationship between the laser power and stand-off distance of nozzle at different cutting speed and thicknesses were achieved. It was found that the power increases with cutting speed for particular stand-off distance. In addition , the laser power proportional with stand-off distance for low cutting speed but out the proportionality at high cutting speed . However, the results of this study are necessary in order to move another step towards understanding and to clarify their benefits for cutting process by laser


Article
Preparation of heterocyclic compounds and diagnosis of beta -lactam derived from Schiff bases
تحضير وتشخيص مركبات حلقية من ألبيتا لاكتام مشتق من قواعد شيف

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الخلاصة

In this research the preparation of new compounds containing one or two of beta- lactam way Staudinger reaction of Schiff bases with acetyl chloride and the presence base of tri ethyl amine has attended the interaction of Schiff bases with different amines Aldyhed (vanillin) also been converted to a beta-lactam compounds (4 - (4-hydroxy-3-methoxyphenyl) -1 - (3-hydroxyphenyl) azetidin-2-one to the compound (4 - (4-hydroxy-3-methoxy phenyl) azetidine-2-one) containing the-NH using the complex (NH4) 2Ce (NO3) 6 the latter compound was converted to N-sulfonyl beta lactam ring interaction with single -sulfonyl chloride, the presence of tri ethyl amine and 4.4- di methyl amine pyridine ((DMAP)


Article
Optical Parameters of (KMnO4) Doped (PVA)
المعلمات البصرية لأغشية البولي فنايل الكحول المشوب ببرمنغنات البوتاسيوم

المؤلفون: Widad Hano Abass وداد هنو عباس
الصفحات: 28-33
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الخلاصة

Films of pure (PVA) and (PVA) doped by (KMnO4) have been prepared using casting method. We have studied the effect of(KMnO4) dopant on the optical properties of a polymer poly(vinyl alcohol) (PVA). Optical band energy gap (Eg) is estimated using (UV-VIS) spectra and it was classified as indirect allowed transition . Optical transmittance, Absorptance , Absorption coefficient , real and imaginary part of dielectric constant and Skin depth are investigated and correlated with the action of doping process.


Article
Study of Gamma Ray Buildup Factor for Different composites
دراسة عامل تراكم أشعة كاما لمتراكبات مختلفة

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الخلاصة

In this work, gamma ray buildup factor was calculated and studied for different composite materials which consist from unsaturated polyester ( UP) as a matrix and (Fe ,Cu ) as reinforced materials with different types of reinforced (powder, laminates and fibers) .The effect of increasing of matel concentration (10,20,30,40,50)%, thickness (1,2,3,4,5) cm and effect of type of reinforcement and orientation of reinforced fibers (0,45,90) degree on buildup factor were studied. The results show that the buildup factor decreased with the increasing of matel concentration. While it increasing with increasing thickness of the shield. The best way for reinforced of the matel (the lowest of buildup factor ) was for the laminated reinforced material. The best shield that used for different orientations of fiber when angle between the first and second layer is 45o. Energy of 662 keV of gamma ray from 137Cs source of 10 µci was used with (3"x3") NaI(Tl) detector with an integrated measuring system.


Article
Study The Effects of Atmospheric Turbulence on Propagation of Laser Beam
دراسة تأثير الاضطراب الجوي على انتشار الحزمة الليزرية

المؤلفون: Gailan Asad Kazem كيلان اسعد كاظم
الصفحات: 34-46
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الخلاصة

Two theoretical methods for the calculation of turbulence attenuation to laser beam are used, the Rytov's approximation and Andrews’s method. These calculations were performed for some important communication wavelengths of 0.86 μm ,1.55 μm,3.50μm and 10.6μm.The distance between the optical transmitter and receivers system of horizontal links was set to values ranging from (0 to 3000) m. We have taken into account the homogenous turbulence at low and high values for structure parameter of refractive index.


Article
Effect of Thickness on the Optical Parameters of NiO Prepared by Spray Pyrolysis Technique
تأثير السمك على الثوابت البصرية لأغشية NiO المحضرة بطريقة التحلل الكيميائي الحراري

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الخلاصة

NiO films with different thickness were deposited on to glass substrates using the spray pyrolysis technique, The thickness of the prepared films were 140,180,240,280 and 330 nm Transmission and absorption spectra were recorded in the wavelength range 300-900 nm in order to study the effect of increasing thickness on some optical constants such as reflectance, absorption coefficient , refractive index, extinction coefficient, real and imaginary parts of dielectric constant and optical conductivity. This study reveals that all these parameters affect by increasing the thickness.


Article
Synthesis, Characterization and biological activity of some oxadiazoles derivatives and thiadiazoles derivatives
تحضير وتشخيص وقياس الفعالية البايولوجية لبعض مركبات الاوكسازول والثايوزول إحمود خلف جبر الجبوري و ثائر فاضل خليل البياتي و خلف محمد جاسم و طارق سليمان محمود الجبوري

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الخلاصة

In this our research were chosen as a source number of heterocyclic compounds. Substituted hydrazide (2) was synthesized from the reaction of ester (1) with hydrazine hydrate in presence of alcohol. The ester obtained from the reactions of Para nitro benzoic acid (1) with absolute ethanol in presence concentrated sulfuric acid. The para nitro pheny hydrazide (2) was treated with carbon disulfide in ethanolic potassium hydroxide solution to give 5-pheny-1,3,4-oxadiazole-2-thiol (3). The reaction of compound (3) with hydrazine hydrate give 1, 2, 4 - triazole (5).The reaction of compound (3) with various aryl halid using KOH alcoholic to give 5-Phenyl-1,3,4-xadiazoleo thio ether (4a-e). A number of substituted -1,3,4-oxadiazole (7a-g) and substituted 1,3,4-triazoles (5). The para nitro phenyl hydrazide (2) which upon its reaction with various aldehydes aromatic or keto phenone in absolute Ethanol yield corresponding Schiff bases (6a-g). The compounds (6 a – g) were treated with acetic anhydride to give (7a– g). The synthesized compounds were identified by using the melting point and infrared spectra analysis and the result are compatible with their assigned structures.


Article
The effect of adding plastic component pyramid percentage on physical characteristic for porcelain body prepared from (Kaolin-sand glass-potassium field spare)
تأثير إضافات نسب هرم المكونات الملدنة في بعض الخصائص للجسم السيراميكي المشكل من (كاؤولين – رمل زجاج ارضمة –فلدسبار البوتاسيوم)

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الخلاصة

Different weight percentage were selected from plastic component pyramid (Binder,plastizier,lubricant); to study their effect on physical and dielectric properties for porcelain body prepared from local clays [40wt% Kaolin Dukhla D<200μ, 25wt% Arthuma sand glass D<63μm]. First step was clay washing to remove soluble unrequired materials, followed by drying, milling then sieving to select the required particle size. Three mixture from pyramid were prepared by using (70,75,80)% of polyvinyl batyral, (20,15,10)% butyl pathalte, and 10% paraffin wax pastillated. These mixture were solved by using xylozul analyte solvnt at 90oC by indirect heating process. After adding 5% from prepared plastic component pyramid mixture to porcelain body, followed by mixing, then by method looks like Hot ISO-static press, the samples were formed. The dried samples were heat treated at different firing temperature (1250, 1300, 1350)oC for 2hr and at rating 2oCmin. Dielectric characterization (Dielectric constant, dielectric loss index) and physical parameters (linear and volume shrinkage) were measured. The conclusion behind this study that adding 5% of plastic component pyramid mixture, with respect to their preparation condition, to porcelain body, then fired at 1300oC gives the recommended data for dielectric characteristic with 20% shrinkaage, and as percent of binder increase corresponded with increase of dielectric and shrinkage properties.


Article
Time Series Analysis of Southern Oscillation Index and Temperature over Iraq
تحليل السلاسل الزمنية لمؤشر التذبذب الجنوبي ودرجة الحرارة في العراق

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الخلاصة

El Nino Southern Oscillation is believed to be responsible for some climate change in the world. The aim of this work is to investigate the relationship between the Southern Oscillation Index (SOI) and the monthly mean temperature over Iraq. Time series of SOI and temperature for the period of 1900 to 2008 were analyzed. Pearson, Spearman, and Mann-Kendall non-parametric tests were carried to see how the SOI and temperature time series are correlated. The results showed the correlation coefficients were slight for all the locations suggesting that there is no relationship between SOI and temperature over Iraq.


Article
Theoretical Studying Of Fatigue Crack Growth (FCG) for Aluminums Alloy By using Generalized Paris Equation
دراسة نظرية لنمو شقوق الكلل لسبيكة الألمنيوم AL باستخدام معادلة باريس المعمم

المؤلفون: FAROUQ I. HUSSAIN فاروق إبراهيم حسين
الصفحات: 65-74
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الخلاصة

A theoretical study was done in this work for Fatigue Crack Growth (FCG) and stress factor intensity range for Aluminum. It also includes Generalized Paris Equation and the Fulfillment of his equation which promises that there is a relation between parameters c and n. Used Simple Paris Equation through which we have estimated the practical values of c and n and compared them with the theoretical values which have been calculated by Generalized Paris Equation . The value of da/dN (crack growth rate m/cycle) and ∆K (stress intensity factor Mpa*m1/2) for every material and sample were concluded and compared with the data which was used in the computer program for the whole of our research . The program is written in Fortran . The theoretical and practical data was drawn with (Graf) program so as to conclude the data mentioned in the research .


Article
Animation Steganography using Binary Images
اخفاء المعلومات في الصور المتحركة باستخدام الصور الثنائية

المؤلفون: Burhan Mollan Salih. برهان مولان صالح
الصفحات: 69-89
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الخلاصة

Steganography is the science of secret message delivery using cover media. The cover carriers can be image, video, animation, sound or text data. A digital image is a flexible medium used to carry a secret message because the slight modification of a cover image is hard to distinguish by human eye. Secret data hiding in binary images is more difficult than other formats since binary images require only one bit representation to indicate black and white. However, this model proposes technique to hide secret message using animations as cover-object. In the proposed model, animation sample frames are converted to binary images. Then, these binary images are used as a cover for hiding secret data depending on boundary bits manipulation technique.


Article
Study of Durgs Sensitivity aginst Bacterial Isolated From Patients with Urinary Tract Infection in Baqubah City
دراسة الحساسية الدوائية للجراثيم المعزولة من خمج التهاب المجاري البولية في مدينة بعقوبة

المؤلفون: Azher Subhi Khames أزهر صبحي خميس
الصفحات: 75-82
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الخلاصة

This study was conducted for the period 01 / 01 / 2010 to 30 / 06 / 2010 in Baqubah general teaching hospital & Albatool teaching hospital children & Maternity in Baqubah city. (135) isolates of different strains from (200) midstream urine samples, Escherichiz coli , Steptococcus spp. , Staphylococcus aureus , Proteus spp. ,Enterobacter spp., Pseudomonas aeruginosa ,with percentage (42- 13- 4.6- 3.5- 2.5- 2 ) % respectively, the percentage infection in female was more than males (63% , 37%) respectively, while the highest infection percentage was in age rate below (10) years & more than (51) years, which it was (22.2 , 23.7)% respectively, as well as studying the sensitivity of bacterial strains against different antibiotics, the results showed variable results in sensitivity of these strains against these antibiotics.


Article
Determination of caffeine content in Baghdad Soft Drinks Company products using HPLC technique
تقدير كمية الكافائين في المشروبات الغازية لمنتجات شركة بغداد باستخدام تقنية HPLC

المؤلفون: Nuha .A. j .Imran نهى عبد الجليل عمران
الصفحات: 83-96
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الخلاصة

A high- performance Liquid chromatography method was employed for the quantitative determination of Caffeine in several soft drinks produced in Baghdad company such as Pepsi, Pepsi diet, seven, seven diet, Miranda orange and Miranda apple .The chromatographic analysis of caffeine was carried out after their sequential elution with 50% (Acetonitrile: water) as mobile phase by reverse- phase HPLC technique C8 Column and UV detection was made at 273nm. Calculated (RSD%) values for retention time was obtained between (0.104-0.515%) and (RSD%) for Peak Area was (1.319-7.741%) .


Article
Multipole Mixing Ratios for Gamma transitions in 56Fe populated in Reaction by using least square fitting method
نسب الخلط لأشعة كاما المنبعثةFe 56من تفاعل بطريقة تطابق المربعات الدنيا

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الخلاصة

The γ- mixing ratios of γ- transitions from levels of 56Fe populated in reaction are calculated using least square fitting program for the first time in the case of pure and mixed transitions the results obtained have been compound with γ Values determined by other methods .The comparison shows that the agreement is good this confirmed the valilety of this method in calculating of values for such γ- transitions key word: γ- transition ,Multipole mixing ratios ,Least square fitting method.


Article
Quantum vectorial Boolean function Algorithm
الكم اتجاهي منطقية خوارزمية وظيفة

المؤلفون: Waffa faeik keidan وفاء فايق
الصفحات: 100-111
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الخلاصة

We shall study the problem Input :A computable vectorial Boolean function That is either with mask, i.e. Output: Distinguish between the two eases, and in the second case produce S. To solve this problem exactly or with high probability, for every such f , a classical (probabilistic) computer needs to evaluate f an exponential number of times. • However, this problem can be solved with high probability, by a quantum algorithm with only quantum evaluation of f .


Article
Development of the Solder Glass Paste with TiO2 additive in glass – to – Metal Sealing process
تطوير عجينة الصمغ الزجاجي باضافة ثنائي اوكسيد التيتانيوم اليها في عملية لحام زجاج – معدن

المؤلفون: Mazin K. Mustafa مازن كريم مصطفى
الصفحات: 112-128
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الخلاصة

Solder glass paste developing by adding Titanium dioxide ( TiO2 ) to the paste compilation, which used in metallic rods sealing with quartz tubes . This kind of sealing is used in a lot of industrial applications such as : the flash lamps that required special fabrication conditions , thermal probes and many others . The paste was used as intermediate substance between the quartz glass tube surface and the surface of the metallic Tungsten ( W ) rod . The sealing temperature range was ( 410 – 520 oC ) and the best result been in ( 470 oC ) . The grain size of ( TiO2 ) powder was ( 60 micron ) . The samples were tested in a high vacuum system with controlled heating unite . many of the samples that passed successfully in different tests were used in practical system ; Xe flash lamp , Ion Argon laser and high sensitive thermal probes which insured their efficiency in operation process . The different conditions of sealing process were studied to get best results , such conditions ; samples cleaning before sealing , oxidation effects during sealing process and annealing of samples after sealing process . This research showed the effect of adding Titanium dioxide ( TiO2 ) to the glass solder paste which improve the mechanical and thermal properties . Good efficiency of the developed solder glass paste encourage to use it in many gas laser systems .


Article
On some result of topological projective modules
بعض النتائج حول المقاسات الاسقاطية التبولوجية

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الخلاصة

In this paper, we given and study the finite direct sum and tensor product of topological projective modules. We obtain some results and properties to relate the direct sum and tensor product of topological projective modules. Keyword (( tensor product, topological rings, topological modules, topological projective modules))

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