Kirkuk University Journal-Scientific Studies

في هذا البحث، تم اجراء اختبار تأثير الضوضاء على ميزات الصور الرقمية حيث أن معظم أنظمة الحاسبات والاتصالات معرضة للتأثر بـالضوضاء المعروفة بالـ (Gaussian Noise) التي قد تأتي من مصادر طبيعية مختلفة فكان من المثير للاهتمام أن يتم قياس تأثير هذه الضوضاء على ميزات الصور. لهذا الغرض، تم استخدام مجموعة من الصور المعرضة لـ (Gaussian Noise) لتوليد الصور المشوهة مع قيم مختلفة للمتوسط والتباين في كل مرة مع نفس مجموعة الصور وذلك لاجل قياس حالات متنوعة من تاثير هذه الضوضاء. ثم، استخدمت أربع مرشحات تعزيز مختلفة لإزالة الضوضاء (Gaussian Noise) واختيرت مجموعة من 10 ميزات لهذه الدراسة. ان الميزات من الصور الأصلية ، الصور المشوهة، والصور المعززة قد احتسبت وتمت المقارنة بينها. أظهرت النتائج ان بعض مرشحات التعزيز اثرت على ميزات الصور اكثر من الضوضاء (Gaussian Noise) نفسها, اضافة إلى أن بعض مرشحات التعزيز لها التاثير نفسه على ميزات الـ (Texture) و الـ (Entropy) واثنان من الميزات المعتمدة على التحويل (Wavelet). استنادا إلى ميزات الـ (Texture), مرشح التعزيز المتوسط اعطت افضل النتائج, بينما استنادا إلى الميزات المعتمدة على التحويل (Wavelet) فان مرشح تعزيز الحركة اعطت افضل النتائج. البرنامج الذي تم استخدامه في هذا البحث هو Matlab 2013 .

of hydrazones (N3- N10) were synthesized from the reaction of compound (N2) with various substituted benzaldehydes (aceto phenone) gave hydrazone compounds(N3-N10).Substituted compounds(N11-N12) , compound (N13) , compounds(N14-N16) ,compounds (N17-N18),Were synthesized from cyclization of hydrazones (N3- N10) using chloro acetic acid or tri chloro acetic acid or thio glycolic acid or chloro acetyl chloride respectively.
The synthesized compounds were identified according to their physical properties, spectroscopic data (IR and1H- NMR) in addition to systematic identification of some active functional groups in these compounds. This the research includes synthesis of some new derivatives of 2-mercapto benzimidazole (N1), the compound (N1), prepared by reaction of o-phenylene diamine with carbon disulfide in alcoholic potassium hydroxide. Then the compound (N1) was treated with hydrazine hydrate in ethanol to give 2-hydrazinobenzimidazole ( N2).A Number

An easy, rapid and sensitive novel spectrophotometric method for estimation of trace amounts of Promethazine-HCl in aqueous solution is described. The method is based on using the oxidative coupling reaction of Promethazine-HCl with m-amino benzoic acid reagent at pH1.2 in the presence of N-bromosuccinimide to produce an intense green color, water soluble, product which exhibit maximum absorbance at 592 nm. Beer's law is obeyed over concentration range of (2-26 µg/ml), with a Ԑ 9.754×〖10〗^3 l/mol.cm, Coefficient determination (R2=0.9991). Sandell̕s index of 0.03289 µg/cm^2, the average recovery is 100.396 %, RSD does not exceed 0.3096 %, LOD of 0.1949 µg/m1 and LOQ of 0.5905 µg/m1. The proposed method was applied successfully for determination of PMZH in its pharmaceutical formulations..

The Directorate of Dormitories at the University of Kirkuk offers full accommodated rooms to the male and female students. However, the directorate registers and assigns the accommodations manually. Therefore, a visiting has been made to the directorate to identify the problems of this system. It is found that the manual system suffers from several issues such as wasting time, losing data and extra charges in documenting students' information. Additionally, delays in replying to students’ enquiries, and ignoring their discipline in distributing them among the accommodations. This paper proposes using an e-governance system to tackle the identified problems. The proposed system permits the student to register online and provides him/her with an id card. The id card consists of a serial number, ISBN and student's room information in the accommodation. To design the system, a number of programming languages is used: (PHP, HTML, JAVA SCRIPT and CSS). Furthermore, SPSS software has implemented to evaluate the system. The evaluation has shown significant merits in terms of the reliability and speeding up of assigning rooms to the students among the accommodations. The distribution of the students is according to students discipline. Furthermore, the system determines the capacity of each accommodation precisely. Moreover, decreasing in time wasting and tiredness that may students face in the traditional manual system. Additionally, reducing the physical contact between the students and the employees. Consequently, the proposed system gathers students' information in an electronic archiving which may lead to easiness in importing their information in the future.

Khishni fish Liza abu were collected from Tigris river to study oocyte development in this fish .Present study showed that the oogenesis process include seven stages divided according to cell size,chromatin matter and vitellogenesis .The first stage represent as Oogonia,the second is Early oocyte,the third is Multinucleated stage,then Yolk nucleus stage (indicator to beginning of vitillogenesis),followed by primary and secondary stages and lastly Maturation stage

In this research, new coated carbon electrodes were constructed and used for the determination of Sildenafil citrate (SILC) drug. The electrodes were constructed by preparing ion-pair for (SILC) with phosphotungstic acid (PTA) or phosphomolybdic (PMA) acid using   dibutyl phthalate (DBP) as a plasticizer. These electrodes showed good sensitivity towards SILC with linear range of (1.0´10^-7-1.0´10^-2) M, correlation coefficient, (0.9990), the life time (120) days, optimum temperature range (23-65) ^oC and optimum pH range (2-5) for both electrodes, limit of detection (5.055´10^-8 and 5.116´10^-8) M, slope (57.29 and 59.10) mV/decadefor SILC-PTA and SILC-PMA electrodes respectively. These electrodes were successfully applied for determination of SILC in pure and pharmaceutical preparation form(tablets) with recovery of not less than 98%.

At this paper, an experimental investigation was conducted to explore the effect of different curing methods and water cement ratios on compressive strength and density of normal weight concrete. The samples had been submitted to five different curing methods including: water curing (standard curing), air curing and three types of colored plastic bags curing including (Transparent, white and black bags). The effect of w/c ratio on compressive strength at different curing had been studied too. Test results shows that the curing by plastic bags gives accepted results compared with standard curing and better than air curing. For all kinds of referenced curing the increasing in w/c ratios decrease the compressive strength, and the density of concrete samples reduces at air and plastic bags curing compared with standard curing..

This study included the synthesis of O-carboxymethyl chitosan which contains amine group attached directly to its glucose unit from the well-known natural polymer (chitosan), which in turn was reacted with some aromatic aldehydes containing o- and p- substituents to prepare a series of Schiff bases compounds. The used aldehydes were; p-boromobenzaldehyde, o-hydroxybenzaldehyde, o-bromobenzaldehyde, p-chlorobenzaldehyde, and p-nitrobenzaldehyde. The synthesized compounds were characterized using spectroscopic techniques including FT-IR and ¹H-NMR. The thermal stability of some of the prepared compounds was checked using differential thermaogravimetric analysis DTA. Finally, the biological activity of two Schiff bases was measured against two types of bacteria (Escherichia coli) and (Staphylococcus aureus) in terms of inhibition rate.

An experiment was conducted in randomized complete block design with four replicates to study the effect of spraying nitrogen fertilizer as a urea with concentration 0 , 10 , 20 , 30 mg/liter on the characters of cotton Koker 310 at summer season 2007 in experiment station of cotton research unit in mosul technical institute , all the agricultural practices were done for the end of season where study the plant height , number of nodes to the first fruit branch , number of vegetative branches , number of fruiting branches , number of bolls /plant , boll weight , seed index , lint index , lint percentage and seed cotton yield kg/h . Spraying urea fertilizer in concentration 20 mg/liter significantly exceeded from control in plant height , number of fruiting branches , number of bolls/plant , boll weight and seed cotton yield kg/h in percent 63.72 , 24.49 , 43.92 , 8.92 , 42.59% respectively while seed index significantly differed from control treatment in other used concentrations . Spraying urea fertilizer reflected significantly linear regression correlation to increase seed index and degrease lint percentage in addition to positive significant correlation for seed cotton yield with plant height , number of vegetative branches , number of fruiting branches , number of bolls /plant , boll weight and seed index .

Kirkuk gas turbine power plant is supplied by the gaseous fuel from north gas company. The results showed that the theoretical efficiency of the unit is a function for two parameters; the compressor input temperature and the pressure ratio rp . So, the pressure rp ratio depends directly on the compressor input temperature. If the net work of the unit Wnet (Wt - Wc) is taken to be an index for the performance, the efficiency ƞ will be more in summer than that in winter because of the considerable reduction in compressor work Wc , while if the specific energy produced (or consumed specific fuel SFC) is taken as an index for the performance; the actual efficiency ƞac is more in winter since the specific energy produced in winter is greater approaching (4.5 kW.hr.m-3), while it did not exceed (2.8 kW.hr.m-3) in summer, this belong to the performance improving as the load increases approaching the design load, this is prevailing on the power plant operated by the diesel, heavy fuel or crude oil.