Table of content

Journal of College of Education

مجلة كلية التربية

ISSN: 18120380
Publisher: Al-Mustansyriah University
Faculty: Education
Language: Arabic and English

This journal is Open Access

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Scientific Journal issued by College of Education / The University of Musansiriya

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Table of content: 2005 volume: issue:5

Article
دراسة تأثير اوكسيد المنغنيز على كفاءة البطارية الجافة

Authors: جميل موسى ضباب
Pages: 1-16
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Abstract

Open cycle voltage ( o.c.v) of l-eclanshe cell are depending on cocentrations of the reactive materials , which are encluded in the cell manfacuring .Form this point of view , the ratio of those active materials were varied . such as eletrolyt manganese and commerial manganese . Usually those materials were used in ordinary maxtures of dry battary (lG' 2Ci) In Alnoor Factory . To decrease the cost of manfaturing battaries 'T'he ratio of Commerial manganese was increased by about (95 Kg mixture ) with out effecting the effeciency of the battary . Adischarging time of 178 min througn aresistanse of 20 ohm was gain from this battarycotnpaning r.vith discharging time of 143 min .by ordinary :bauary . Thc results shorv that the suggested mixture is morc homogenous than that of ordinary mixture. The continous discharge time for the suggested mixture show abetter result ,(8.33) than that of ordinary mixture (8-l ) It Seems that raising the ratio of Low cost crude manganese in the rnixture did not effect the bafiaries effeciencv .

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Article
الفهرست

Pages: 1-1
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Abstract

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Article
ثبات حمام قصر القطن

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Abstract

()ne of thc natural ccllulosc flbcrs is cottOn therc alc llnany mcthods oF bleaching cotton ainl at remove as much impurity as possiblc ,prior to pcroxidc bleaching, becausc of there is no possibiliり of reaCtiOns、vith thc cellulose and no follllatiOn of undcsirable products H_vdrogcn pcroxide、vas uscd as bleaching reagcnt、vith alkalinc solution and its stability to control thc rate of bleaching to get good whiteness with minimum chemical damage,this stability was studicd in this papcr by using nolll,al conditions with three diffcrent cascs such as: l By using blcach liquor only 2. Bleach liquor in the presence of sodium silicate with sOdium phosphate. 3. UN stabilized bleach liquor. Experimental results generally shows that the increasing are in the tbllowing order: Bath 2 > The result of bath 2 will be added to the literatures as in chemical technology of bleaching of cotton of industry.

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Article
الخصائص التركيبية لأغشية الكرافيت الحراري المرسبة باستخدام تقنية التحليل الحراري Thermal Decompositionللبنزين العالي النقاوة

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Abstract

py.nfyti. Graphite films prepared on graphite substrates by "rr"firg rtiir, pr"ity benzen for difierent deposition param-eters' The ;tp*;;il;i rlsutts show a change in deposition rate€s a-function of ;;;,ir; temperature , benzen v-apor ptittute and d.cposition time ' iir'" nu""rt" alsu show an increase in sharpness of diffracted beams *itn -in"."r*ing deposition temperature' a li-ttle d-isplacement in Jiftr."iion angilslztil of the plane (002) toward -the highest values ' .lniit o"".".ririg the interplaner distance of plane (002) which may lead fo increasc in degree of graphitization 'The best results obtained for irrr". A"p".ri"o aie at12001"C; and vapor pressure(l'5 mbar )'

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Article
Data Base systemfor Drag - Interuction

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Abstract

tt " t.."t *t with muhiple drugs is the underlying cause of adverse interaction .If the trearmenr with multiple drugs is required the less toxic interaction should be chosen to get safe. beneficiai and effective action ol therap)'. The aim ofthis study is to consfuct a Database System for Drugs Interaction (DBSDI) which is acomputer program that relies on thc Ms access database ancl risual basic statement that dcal with this database to facilitate the task of finding the interactions which occur hetueen multiple drugs given t(.r the patients at the same lime, and providc us $ ith the rcsult tvpe of intcraction that means (increase effect ol drug . decrcase eil'ect , toxic reaction ctc ) The DBSDI can act as apersonal consultant to the physicians and pharmacist' who deal, with more complex problem(drugs interactions). when prcscribing multiple drugs to the patients

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Article
Generalization of Mathematical Model for Equilibrium Enzyme Reaction

Authors: Sadiq A. Mehdi
Pages: 61-68
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In this paper, a generaiization of mathemarical model of differential equations has been lormulatcd to govem the concentrations of equilibrium Fnzl,mc reaction. The proposed mathematical modcl is soh,cd bl nurnerical methods.

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Article
Extract Threshold using Histogram

Authors: Amal Abbas Khadim
Pages: 69-79
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Abstract

In manl l'ision application. it is useiul to be able to separate out the rcgions ofthc imrge corresponrJing to ob-iects in rihich rve are inleresteti' lrom the rcgions ofthe image that conespond lo bauLgrourid I t'lS 20001' One ol-man) $a1s usetl lo scparate the oblcc( litrm the l-'ackground is edg.e detection methotls. Thresholding oftcn proridcs as easv wal' (techniquc) to perform the operation of erjge detection Because ol its wide applicability to other areas of the digita! image processing' quite a numhcr of thresholding methods have been proposed over the years' in this pro1ect a new aigorithm is inrroduced in ailenlpt ttr ubiain the threshold value from the pixels intcnsity (histogram) of the gradient images. Two ecige delectors are used to obtain the gradienl images' one of them is traditional method (Sobel edge detector) and another has some comptexity in ia algorithm (Canny edge detcctor) in order to determine the efTicienc-v-, of the adaptile algorithm.

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Article
تقييم التلوث الجوي في محطات مختارة لتعبئة الغاز البترولي المسال في بغداد

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Abstract

The aim of this study is to estimate air quality that include measurements in three different“ations which have been selected in Baghdad city(A卜Ttti,Al‐ Nahtha,Al― Za'afuraniyah)by spCCitt the air pollution insidc and nearby these stations. A comparison takes place between these stations dcpending on the results obtained regard to pollution intensity lnade under the conditions Of the lirnitation factors for ponutants intensity. Caussian distributiOn model for dispersion have been applied for the di」bstion of hydro carbonic pollutants of LPG lnixturc utilized in computer proganl, involves tヽ〃o systems, PGT and ASNIIE to calculatc the cOncentrations of the cold, heavy hydro carbOnic gaseous pollutants at diffcrent dOwn wind distances frorn the point source. Results show that increasing in the hydro carbOnic concentration valucs for vew high value,in both wintcr and summer th誠 exceeded the occupational of p.p.rn. In sumnler pollutants concentration is relatively mOre than winter, in which 、vind spced have an irnportant ねctor atttcting air ponution transport. The local v√ind directioll when it is perpcndicular tO the diameter of the station shape results an intensive pollutiOn, 、vhich suggested that thc shape of LPG ttHing stations shOuld changes to the circular shape to avOid the efたct of local 、vind Oo、v. Tlle results of analysis Obtalned in rcgard to thc applied model, sho、v Caussian model could be applied tt distances not more than(20‐ 50)m■om the source point because of the perpendicular dispersion coefEcient is vanished in the equation.

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Article
The Commutators of Sn

Authors: Afrah Mohammed lbraheem
Pages: 122-126
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This paper presented the commutator of two and three elements of the symmetric group Sn, an the commutators of subgroups and normal subgroups of Sn. Also paper presentes some and theorems about them.

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Article
حول فضاءات -G شبه السديدة شبه القوية

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Thc main purpose of this、vork is to givc a dc■ nition of a new spacc that is ca‖cd Scmi― Strong Scmi‐ Proper G― Spacc ′ 「 his spacc is strongcr than Palias scmi― propcr G―space 13]In othCr wards Scmi― Strong Scmi― Propcr G― Spacc is Palais Scmi― Propcr G‐ Spacc but,the converse may not bc truc in gencral. Wc also study the cquivalcnt dcflnition,the properties,thc subspacc topology,thc product topology and the cquivariant scnll homcomorphic image of Senli― Strong Senli‐ Proper G‐ Spaces.

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Article
On Commutativity result for prime rings with derivations

Authors: Lubna Khalid Abdul Rahman
Pages: 144-153
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Let R be a prime ring, M is non zero ideal of R, d an aclditive mapping, then R is commutative if any one of the following conditions is satisfied: 1.R adrnitting a non zero an additive mapping d satisfuing a derivation with d(M) s M. 2' R admitting a non zcro a derivation d satis$.ing a homomolphism or antihomomorphism, with d(M) _.U and char. Rl2.

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Article
مقدر الاماكن الاعظم لمعولية نموذج الاجهاد - القوة لكلا المتغيرين

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io'iii, p.p., ,r,€ maimum lik'lihood Estimrdor Foroul' (MLE) will bG dcriv'd for th' slr6! vrrirbt. (Y) lnd lh' olhrr is slr'rl wncn rhc rour parimetcrs 'r' unknowr in four di'rcr'rt ccs6'

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Article
G E N EMLIZED HOMGOMORFH I SM AN D S EAT I' G EN ERA LIZ ED CONTI N U OUS MAM PS

Authors: Lieth Abd Al-Lateef
Pages: 180-186
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ln this papcr rvc studi the generalizcd homeornorphisms and the s.nli- gcncraiiied conlinuous maps For this purpo'c wc deline nerv liui."i or maps namely generalizcd A-open' gcncralized A'' homeomorphism and generalized I/ - ho*"o'"tphism' rT'here we makc aeraiiea st,,ay of son:i t'i the basic ciasses maps an'i ue alsrr atlempl to ir,:,r" .,.t:"roi ,r,.orcntr aboul lhcsc nlap:' and rulalc tlicln r ith uilrer maps

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Article
Gtobal solution of nonlinear progran ming problem with equality and i n e q ual ity c o n s t r a i nts Vi a D iffe r e nti al e q uati o n Approach

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The numerical solution of nonlinea. p.ogiu*ming problem with equality and inequality constraints based on the theoretical aspects has been developed using a suitable nonlinear autonomous differential system. Nonlinear autonomous differential system is introduced as the base. of the theory instead of the usual approaches, and the relation between the critical points and local optima of the iJforiginal optimization problem has been proved ani presented Asymptotic ;i;Bilt ;? the criticai poinrs loptimtrm) optima. l.,ut -uto been proved and al."rtJ"a. A numerical algorithm'which has'capable of finding (local) global ootima deoending. on the nature of trajectory and critical point as weli as their algorithm has bee, illustrated for different example to show its efficiency'

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Article
The Semi a- Pathwise Connected Space

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In this papcr we prescnt thc dcinitiOns Of serni α―pathwisc cOnncctcd spacc and strOngly scllli α_pathwisc c01lnCCtcd spacc and 、vc stud) thc rclatiOn amOng thcm and semi pathwisc cOnncctcd spacc, α_pathwisc conncctcd spacc and path、visc cOnncctcd spacc aisO wc dcflnc the semi ` α―locally pathwisc cOnncctcd spacc and strongly scmi α_lacO‖ y pathwisc conncctcd spacc and wc study the rclatiOn amOng thcm and laco‖ y path、visc conncctcd spacc、α_lacOlly pathwisc cOnncctcd space`ind PathwiSC COnnccted spacc

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Article
Multipole-Mixing Ratios of y- transitions from energy levels of 172/70 Yb102 Reaction using a2- Ratio method

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The dclta nlixing ratios of gamlna transitions fronl levcls of nuclci populated in thelttLu101(β +,γ )1;:Yb102 are Calculatcd in thc present work uSing a2~Ratio rnethod. The rcsults obtaincd conf1111l the validity of this methOd in calculating the delta valucs and it capability in predicting any inaccuracies in thc experirncntal data. ′ rhc comparisons of Our calculations 、vith the expcrilncntal data obtained good agreement. ¨

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Article

Article
Gamma Irradiation Effect On The Structural Properties of SnOz:F Thin Films
تأثير اشعة كاما على الخصائص التركيبية لاغشية ثنائي اوكسيد القصدير المشوبة بالفلور

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Thin films of SnOz and SnOz:F have been prepared using SnCl2.2HzO with a new preparation conditions utilizing chernical spray-pyrolysis. 'lhe struciuril and optical properties have been studied for the as deposited thin films before and after irradiation by gamma rays. Bv XRD technique, it was found that the structuiebf the as deposited thin fihirs was polycrystalline, different peaks corresponds to (101), (200)' (211), with'a freferred orientation along (110) difection, the exposure of ihe as cieposlt6d ntms to a selected dosebf gamma rays, seems to decrease itthe intensity of these peaks and increase the full width at half maxima which leadi to an incrdasc in the average of grain size. Surface toDoeraDhv for the as depo-sited -films werc studied using a ,iiioriopl,'ii-*u', iound that radiation increase the structural delect and hence deireasc thc degree of crystallinir.v.

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Article
تصميم مرشح فابري - بيرو باعتماد الربط بين نظريتي الطبقة المكافحة والمصفوفة المميزة المعدلة

Authors: صباح ابراهيم عباس
Pages: 291-299
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Design of nanow bandpass Fabry - l'erot interference filter for the thenn:l region (S- 14 um), especia!)y at Co: laser wavelenpth (L' 10.6[m) by the connection between two theorems: equivalent layer and the modified characteristic matrix theory. Results shows that the region of stop band surrounding the passband peak were extended' thet:fore' no necessity required for glass or absorption filters'


Article
تأثير تغير سمك الاغشية الرقيقة (ZnO) على فجوة الطاقة البصرية

Authors: محسن صلبوخ رهيف
Pages: 313-320
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Thin film of ZnO have been prepared using chemical spray paralysis technique. It was found that all the prepared films have a direct allowed and forbidden transition. 'Ihe increase in thickness lead to an increase in absorbance and decrease in the value ofthe forbidden energy gap.

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Article
Inverse Design of Asymmetrical Magnetic Lenses lJsing a Mathematical Field Model

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The inverse design ol asymmetrical double polepiece magnetic elcctron lenses has beei investigated with the aid ofan axial magnetic field distribution representetl by a well-known malhematical field modcl in electron optics. The influence ofthe magnetic field model parameters on the focal propenies and the polepieces profile ot asymmEtrical magnetic electron lenses has becn taken into account. 'fhe mr.)st effective parameters on the design configuration are the two halfuidths ol the axial magnetic field distrib"ution. Tie results have shown that the polepieces of various asymmetrical double polepiece magnetic lcnses can be. reconstructed ec'ccrCing tc thc Cif{brint halF.':idths of the fiel'l nn th6 ofr.iqq! and irn'age s ide.

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Article
دراسة الثوابت البصرية لمزيج من اغشية اوكسيد (Cu-Fe) المحضرة بطريقة الترسيب الكيميائي الحراري

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Thin films of (Cu ) oxide mixed with ( Fe ) oxide in different percentages and thickncss were prepared by chemical spray plrolysis iechniqui . The Absorption and I ransmission spectra has been recorded in the wavelength range (330-900) nm. Thefollowing optical constants have been calculated,such as , Absorplion coeflicienl reflectivity , extinction coefficient. refractive index, real and imaginary parts of dielectric constant and the electrical conductivity.

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Article
A Proposed Function To Synthesize Both Symmetrical And Asymmetrical Magnetic Lenses

Authors: Ali H. H. Al-Batat
Pages: 354-370
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A new analytical function to start the synthesis procedure has been introduced in the present work. This function is applied to both symmetric and asymmetric magnetic lenses. The proposed expression has been carried out to approximate the axial magnetic field strength and hence its corresponding magnetic flux density distribution. Thereby, several optimization parameters arise by means of the suggested function. The influence of each of these parameters on thc objective focar properties and the reconstructed polepiece profile has been investigated. The results have shown a new approach concerning the positions from which the bore diameter and air gap should be measured.

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Article
تأثير اشعة كاما على الصفات البصرية لأغشية (SnO2) الرقيقة

Authors: محمد جواد ياسين
Pages: 371-384
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In this research we study the eflect ol(1-rays) onthe optical nroperties of(SnO2) thin films . These films were exposed to ( v-rays) for two weeks . Transmittance and absorptlon spectra werc rccorded in the rvavclcngth range (300-900)nm in order to obtain the optical parameters We calculate the forbidden energ-"- gap for direct transition and study the absorption coellicient, reflectivily and the optical parameters such as extinction coefficient, refractive index, real and imaginary part ofdielectric constant and the electrical conductivity.

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Article
تأثير درجة الحرارة شرط عتبة التشغيل في ليزر اشباه الموصلات ذي الحجرة العمودية : (معالجة رياضية)

Authors: جيهان ادمون سيمون
Pages: 399-409
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In this study, a mathematical treatment lbr the effect of temperature on operation threshold condition of a InCaAsPitnP semiconductor laser' with bulk active region or multi-quantum rvells, rvas presented The treatment is based on tow mathematical models describing the total loss in laser structure in both designs, whilst experimental values of laser parameters were considered to determine threshold carrier concentration and energies as a function of temperature. Also' the relation of temperature-at which threshold conciition is saristleri uith temperature at which intracaviry resonance energy matches the peak of gain spectrum - was described' This effect is one of design parameters in MQ vertical- cavity laser since the cavity length is controlled to achieve the temperature required for matching' This study considered this effect only despite there are several other effects on such type ! of lasers.

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Article
The Effict of y-Ray On The Optical Properties of (SnO2: Al) Thin Film

Authors: N. F. Hububi --- K. A. Mishjil --- M. H. Hassoni
Pages: 410-426
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Thin films of SnO2:Al have been prepared using spray pyrolysis technique. The efTect of gamma rays on optical properties of these films have been studied. lt was found the "i*ray affected these properties by reducing the value of all the parameters under investigation and the energy band gap decreases for the exposed films as the percentage of AL increase, expect in lo4 percenkge in comparison vvith unirradiated values

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Article
An Improved Approach For Calculating Aberration Integrals

Authors: Hassαn N. Al-0baidi
Pages: 427-438
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A gcncral approach havc bccn outlincd to calculatc thc frst ordcr propcrtics and thc third Ordcr abcrrations of a chargcd p7articlc passing through a l■ lagnetic rleld The featurc of this procedurc is that it may bc considcrcd on analytical approach and hencc it is absent from thc sorts of crrors usually inhcrcnt with thc numcrical proccdure 「his approach, howcvcr,is bascd as an thc ncw analメiCal mcthod for solving thc wclト known paraxial ray cquation which is introduccd latcr Accordingly, tllc convcntional abcrration and distortion coefacients have been fonnulatcd by uslng thヽncw ldca Thcrcancr,an ottCa市c cOmparisonヽmadc bctwccn the formulated expressions and the correspondence analytical forms' The results have clearly shown that they are exactiy identical. Thereby, the introduced approaih may be used to replace any numerical approach dealing with- the passing of a charge particle throughout any electro=magnetic imaging fields. Moreover, the presented approach is simpler than the conventionai numerical techniques and has less storage size and execution time.

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Article
دراسة حافة الامتصاص والثوابت البصرية لأغشية B-SnO

Authors: خضير عباس مشجل
Pages: 439-448
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Thin ilms of β SnO haVe bccn prcparcd using thc chcmical spray deposition tcchniquc on borosilicatc glass as substrate hcatcd as(823k) The structural analysis indicatc that the prcpared ilms arc rOly― CゥSta‖ inc Absorptancc and transmitancc spcctra for thc prcparcd fllms within wavc‐ lengths rangc(300‐ 900 nm)waS Studcd,thcn thc cncrs gap in dircct alowcd and direct forbidden transition wcrc calculatcd Thc prcscnt wOrk also inctudc thc computation of absorption cocf「lcicnt, reflcctancc, cxtinction coefflcient, rcfractivc indcx, diclcctric constant and the electhcal conductiviけof film

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Article
Effect of Doping With (Methylene Blue and Methyl Red) On Optical Properties of Polymethyl Methaete (PMMA)

Authors: Bushra A. Hasan
Pages: 449-465
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Pure polymethyl methacrylate (PMMA) films doped with mehylene blue (mb) una *.tr,yi ."J trrO with iifferent concentration were prepared successfully .The opiical band gap (EJ of pure PMMA was found (a'765eV) for direcr transirion ,-i;;t;;r 6;nd tlo d..r.ut. in irregular manner of ( mb) doped samples, while ( E* ) declared a systematic decreasing of (mr) doped samples . The extended o?iuit states (E") in the gap was found to change in contrast sequence to that of optical "n"tqV gap-' The 1a11tion of (E* )and (E" ) were explained in rerms of abiorbance variation with dopant concentrations '

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Table of content: volume: issue:5