An experimental study was performed to estimate the forced convection heat transfer performance and the pressure drop of a single layer graphene (GNPs) based DI-water nanofluid in a circular tube under a laminar flow and a uniform heat flux boundary conditions. The viscosity and thermal conductivity of nanofluid at weight concentrations of (0.1 to 1 wt%) were measured. The effects of the velocity of flow, heat flux and nanoparticle weight concentrations on the enhancement of the heat transfer are examined. The Nusselt number of the GNPs nanofluid was enhanced as the heat flux and the velocity of flow rate increased, and the maximum Nusselt number ratio (Nu nanofluid/ Nu base fluid) and thermal performance factor
... Show More"تهدف الدراسة الى ابراز حكم حزب البعث العربي الاشتراكي في العراق والتصفيات السياسية القاسية بحق الكرد الفيلية، حيث تعرضت هذه الأقلية لاضطهاد منهجي بسبب انتمائها العرقي والمذهبي. بدأت حملة التصفيات في سبعينيات القرن الماضي، حيث اتهم النظام الكرد الفيلية بالتجسس لصالح إيران خلال فترة التوترات العراقية الإيرانية. تم تهجير آلاف العائلات الكردية الفيلية قسراً من بيوتهم، وتمت مصادرة ممتلكاتهم، وتجريدهم من ال
... Show MoreElectrocardiogram (ECG) is an important physiological signal for cardiac disease diagnosis. With the increasing use of modern electrocardiogram monitoring devices that generate vast amount of data requiring huge storage capacity. In order to decrease storage costs or make ECG signals suitable and ready for transmission through common communication channels, the ECG data
volume must be reduced. So an effective data compression method is required. This paper presents an efficient technique for the compression of ECG signals. In this technique, different transforms have been used to compress the ECG signals. At first, a 1-D ECG data was segmented and aligned to a 2-D data array, then 2-D mixed transform was implemented to compress the
This study was aimed to find out the effect of different soil components of some Iraqi soils under different climatic conditions and different parent materials on the adsorption of lead and cadmium. Soil samples were collected from four governorates (Dohuk, Wasit, Salah al-Din, and Basra), with three sites in each governorate, and two depths (0-30 and 31-60) cm. A chemical analysis of the soil were carried out to determine the amount of organic matter, carbonate minerals, total and crystallized free iron oxides. Results showed that the values of and soluble and exchangeable lead binded with carbonate minerals, organic matter, oxides, and clay fraction in rates ranging betwe
... Show MoreDue to the broad range uses of chromium for industrial purposes, besides its carcinogenic effect, an efficient, cost effective removal method should be obtained. In this study, cow bones as a cheap raw material were utilized to produce active carbon (CBAC) by physiochemical activation, which was characterized using: SEM to investigate surface morphology and BET to estimate the specific surface area. The best surface area of CBAC was 595.9 m2/gm which was prepared at 600 ᵒC activation temperature and impregnation ratio of 1:1.5. CBAC was used in aqueous chromium ions adsorption. The investigated factors and their ranges are: initial concentration (10-50 mg/L), adsorption time (30-300 min), temperature (20-50
... Show MoreThe precursor [W] [2-(2-(naphthalen-5-yl) diazenyl)-4-amino-3-hydroxynaphthalene-1sulfonic acid] was synthesized from reaction of diazonium salt with 1-amino-2-naphtol-4sulfonic acid. Then the tridentate Schiff base ligand type ONO was synthesized from the reaction of the precursor with salicyaldehyde in 1:1 mole ratio to produce the ligand H2L [2-(2-(naphthalen5-yl) diazenyl)-4-(2-hydroxynaphthalen-3-yl)methyleneamino)-3-hydroxy salicyalene-1-sulfonic acid],the reaction achieved in methanol as a solvent under reflux. Spectroscopic methods IR, U.V, 1H,13C-NMR was used to characterize the ligand. Complexes of [CrIII, CoII, NiII and CdII] ions were also prepared through reaction of ligand with metal salts in 2:1 mole ratio at reflux,
... Show MoreNew Schiff base and their Mn(II),Co(II),Ni(II), Cu(II) and Hg(II) complexes formed by the condensation of O-phathaldehyde and ethylene diamine (2:1) to give ligand (L1) in the first step ,then the ligand (L1) with 2- aminophenol (1:2) to give ligand (L2) were prepared by classic addition through microwave method . These compounds (Ligands and complexes) have been diagnosed electronic spectra, FT-IR, 1H-&13C-NMR (only ligand), magnetic susceptibility, elemental microanalysis and molar conductance measurements. Analytical values displayed that all the complexes appeared (metal: ligand) (1:1) ratio with the six chelation. All the compounds appear a high activity versus four types of bacteria suc
... Show MoreNew chlropheniramine maleate (CPM) selective electrochemical membranes were prepared by using chlropheniramine maleate -molecularly imprinted polymers. MIP was prepared by bulk polymerization using 2-hydroxyethyl methacrylate (2-HEMA) as monomer, ethylene glycol dimethacrylate (EGDMA) as a cross-linker and a benzoyl peroxide (BPO) as an initiator at 600C. Three CPM-MIP electrodes were constructed by using tri-tolyl Phosphate (ToCP), tris (2- ethyl hexyl) Phosphate (TEHP) and tributyl Phosphate (TBP) as plasticizers in PVC matrix.Electrode parameters including slopes, working concentrations ph. The interference effect in the presence of (Na+, Mg+2, Al+3, Glycine, Alanine, Arginine and Phenylalanine) was studied using the separated a
... Show MoreThis study employs an integrated research model to examine the syntax properties of the historic urban network in older Baghdad, explaining how spatial configurations affect urban functions and land use. The relationship between the street network and land use pattern is again the focus for architects and urban planners trying to revitalize historic urban cores. In this research, a multi-method approach is used, incorporating GIS, space syntax analysis, statistical correlations, and site observations, to systematically analyze the syntactic properties of the street network in Old Rusafa. The examination was conducted within a 400m radius of Old Rusafa's historic urban fabric to analyze the syntactic processes that govern
... Show Moreتناول البحث التعريف بالقانون الدولي والداخلي واتجاهاته في المبحث الأول وفي الثاني تناول البحث نظريات القانونين وفي الثالث موقف القانون الدولي من النظام القانوني العراقي والأردني.
قسمت المبحث الأول الى مطلبين: الأول عرفت القانون الدولي العام باعتباره فرع من فروع علم القانون وكيفية اختلف العلماء في تسمية هذا القانون ومنهم من اطلق عليه (الأمم) ومنهم من اسماه (قانون الشعوب) وبينت اتجاهاته والتي هي الاتجاه
... Show MoreOften the greatest source of heat gain is the solar radiation entering through
windows. Heat is then trapped in; because of the "greenhouse effect" shading the
windows is one of the most effective method within the reach of the architect for
reducing this heat gain. This is nowhere more necessary than in a country like the U.A.E.
but we find the architects here often ignoring this important environmental aspect of
design. This is partly due to the lack of relevant local meteorological data plus the
complexity of the procedure involved ;and partly due to the misconception that such
aspect looses much of its significance when the building is air conditioned .
The aim of this paper is to simplify the
ان الجرائم الإرهابية تمس أساساً حياة الإنسان في سلامة الجسم والحق في حماية الملكية؛ وحقوق اخرى؛ الامر الذي يتطلب اتخاذ اجراءات سريعة وفورية لتوفير الحماية الجنائية لضحايا تلك الجريمة؛ وتبدأ هذه الاجراءات من لحظة انتهاء الجريمة ومن هنا كانت الانطلاقة في محاولة لم الشتات لأجل تسليط الضوء على الحقوق التي يتمتع بها ضحايا الجريمه الإرهابيه منذ لحظة ارتكابها ولغاية تنفيذ القصاص العادل لذلك فان البحث في حقو
... Show Moreإن البيئة بجوانبها المتعددة مركز الاهتمام الدولي ذلك كونها تشكل تراثاً مشتركاً للإنسانية جمعاء، كما أصبحت تمثل القاسم المشترك بالنسبة لمختلف القضايا والمشاكل ذات الطابع الاقتصادي والاجتماعية والثقافية، ونظراً لتطور القانون الدولي العام، فقد ظهرت مفاهيم جديدة لم تكن ملحوظة من قبل كمفهوم حقوق الأجيال القادمة، إذ يرتبط هذا المفهوم، ارتباطاً وثيقاً بحماية البيئة، والواقع في مجال القانون البيئي، فإن فكرة ح
... Show MoreThe radial mapping version of the bounding surface plasticity model is implemented in a computer program to predict the response of cohesive soils. The eight-noded isoparametric element and Biot’s theory are used in this study for analyzing soil consolidation problems. The model has been used in the analysis for two classes of problems. The first involves the comparison of model predictions with the results of laboratory tests in compression and extension for normally and overconsolidated clays. The second class involves using the model to predict the results of one- and two-dimensional finite element problems of soil consolidation. The comparisons with experiments demonstrate that the model, through its simplicity, can describe realis
... Show MoreIn this study, two types of mixes were adopted by using two grading of coarse aggregate. The practical side of this study was to produce no-fine aggregate concrete by using crushed clay brick aggregates. The durability of the produced concrete and internal sulfate attack was studied. For durability assessment, it is found that the no-fine concrete made with crushed brick aggregate lost about (15-25) % of its compressive strength after being subjected to 60 cycles of wetting and drying with age 120 days. The curing condition showed that the water curing improved the compressive strength with a rate higher than that when sealed or air dry curing were used. The crushed brick no-fine concrete de
... Show MoreThis research presents a numerical study to simulate the heat transfer by forced convection as a result of fluid flow inside channel’s with one-sided semicircular sections and fully filled with porous media. The study assumes that the fluid were Laminar , Steady , Incompressible and inlet Temperature was less than Isotherm temperature of a Semicircular sections .Finite difference techniques were used to present the governing equations (Momentum, Energy and Continuity). Elliptical Grid is Generated using Poisson’s equations . The Algebraic equations were solved numerically by using (LSOR (.This research studied the effect of changing the channel shapes on fluid flow and heat transfer in two cases ,the first: cha
... Show MoreA total of 100 animals were examined during the period of beginning of September - 2010 till the end of March 2011 at dept of Microbiology college of Veterinary Medicine Baghdad University Baghdad Iraq. These animals include 50 cow and 50 sheep. Hairs and scales were submitted to direct KOH mount smear and culture on modified Sabouraud's Dextrose agar medium The direct smear was positive in 40 ( 80%) for both cows and sheep while the growth of dermatophyte was positive in 35 ( 70%) and 38 ( 76%) for cows and sheep respectively. Species identification revealed the presence of Trichophyton rubrum ( 19 isolates ) Trichophyton verrucosum ( 10 isolates ) Trichophyton mentagrophytes ( 5 isolates ) and Microsporum canis ( one isolate ) in cow w
... Show MoreThe main goal of this in vivo study was to evaluate the effect of 532nm Q-switched Nd: YAG Laser in combination with Human Serum Albumin 20% concentration (as a welding aid) on the liver tissue repair clinically, and histologically. The animals used in this study were 21 male rabbits divided into three main groups: control group (3 rabbits), conventionally treated group (9 rabbits) and Laser treated group (9 rabbits). Each two main groups (conventional and laser treated) consist of three sub-groups depending on the response evaluation at three different periods. The Laser group was treated using 532nm Q-switched Nd: YAG laser after adding human serum albumin immediately on the incised liver’s tissue. The energy of was 460mJ, and 4Hz fr
... Show Moreأهداف: لمعرفة العلاقة بين شدة متلازمة تململ الساقين للمرضى وخصائصهم الديموغرافية (العمر، الجنس، الحالة الزواجية، المهنة، الدخل الشهري، والمستوى التعليمي).
المنهجية: اجريت دراسة مقطعية على عينة غرضية تتكون من (٩٠) مريض من الانفاذ الدموي مشخصين بمتلازمة تململ الساقين في مراكز الأنفاذ الدموي في واسط وذي قار. اجريت الدراسة للمدة من ١٠ تشرين الاول,٢٠٢٢لغاية ٣١ ايار, ٢٠٢٣. ١٢ عضو لجنة أكدوا
... Show Moreسياسة الاتحاد الاوروبي تجاه القارة الافريقية
This research presents a method of using MATLAB in analyzing a nonhomogeneous soil (Gibson-type) by
estimating the displacements and stresses under the strip footing during applied incremental loading
sequences. This paper presents a two-dimensional finite element method. In this method, the soil is divided into a number of triangle elements. A model soil (Gibson-type) with linearly increasing modulus of elasticity with depth is presented. The influences of modulus of elasticity, incremental loading, width of footing, and depth of footing are considered in this paper. The results are compared with authors' conclusions of previous studies.
The present study was carried out to investigate the therapeutic effect of Nigella sativa seeds oil emulsion as against Eimeria stiedae experimentally infected rabbits. After isolation of local E. stiedae strain from infected gallbladders, a total of 90 local rabbits (6-8 weeks age) and body weighing (750-1000 gm) were used. They were divided into 6 groups as follow: Group: 1 uninfected and untreated (control group), Group: 2 infected (untreated) with 10,000 sporulated oocysts of E. stiedae, Group: 3 uninfected and given 200mg/kg B.W. N. sativa L. oil emulsion, Group: 4 infected with 10,000 sporulated oocysts of E. steidae. and treated with N. sativa L. oil emulsion of 200 mg/kg B.W on day 16, post infection, Group: 5 uninfected and give
... Show MoreSpider veins are a common aesthetic problem mainly in females , the conventional method of treatment is by microsclerotherapy (injections) but laser therapy has become increasingly efficacious and a convenient method for treatment. The present study was performed to investigate the effectiveness and safety of pulsed diode laser (810nm) by doing thermal photocoagulation. Ten patients with lower limbs spider veins were included in this prospective study. They were treated with a repetitive pulsed diode laser in non contact technique using the following laser parameters (wave length 810nm,power 1 W ,pulse duration 0.1 s., pulse interval 0.5 s, spot diameter 4mm ,power density 7.9 W/cm2). Laser therapy was performed on day zero and day fourt
... Show MoreA new heterocyclic Schiff bases ligand (HL) derived from condensation of 2-Amino-4-methylbenzothiazole with 4-Diethylaminosalicylaldehyde have been synthesized and characterized by (FTIR & UV.Vis) spectroscopies, (1H & 13C)NMR spectra, mass spectrum, elemental microanalysis (C,H,N,S). Metal complexes with Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) ions have been also synthesized and characterized by (FTIR & UV.Vis) spectroscopies, flame atomic absorption, molar conductivity measurements and magnetic susceptibility. These studies indicate that the mole ratio (L:M) is (2:1) for Co(II) complex and (1:1) for other complexes. The spectral results indicate that the ligand coordinates with met
... Show MoreThe glucagon-like peptide-1 is secreted by intestinal L cells in response to nutrient ingestion. It regulates the secretion and sensitivity of insulin while suppressing glucagon secretion and decreasing postprandial glucose levels , additionally, glucagon-like peptide-1 delays gastric emptying and suppresses appetite. The impaired secretion of glucagon-like peptide-1 has negative influence on hyperlipidemia, diabetes and insulin resistance related diseases the levels of its secretion change with the intake of different nutrients. Some drugs also have influence on GLP-1 secretion .
fhe .rudy has shad a light on the abi_ lity Qf aq,ueous. extract of
Mairlr:aria chamomile ibr eliminating growth of miconazole. .resistant
muta.nt of Candida albk·afzy. whi-ch i:,solated from . human. ruiil and vagina ;Tfl- inimJ.tJTI inhibition cohc!:lhtra_tion (MIC) is l6 Jrl'g/n: l. Spon-taneous tesistant .mutatiqns-.fot mic-onazole were also is:ola ed by using sp 1-f.g/ml of rni:comlzoJeThis ::onc ntrf}:ti:o:n is five times more than the MIC .Different c<:n'lcentnrtlo·ns. of aqu pus e trac.t of Mchr:ztno}Jiile'Â
... Show MoreDensities of double salt [(NH4)2Fe(SO4)2.6H2O] dissolved in distilled water and in ethylene glycol at three temperatures (298.15,303.15 and 308.15)k have been utilized to calculate the apparent molar volume , limiting apparent molar volume ,experimental slop . These results provide as information about solute-solvent, solute-solute interaction and structure-forming, structure-breaking tendency from partial molar expansibility .
New bidentate dithiocarbamate ligand (NaL) namely [Sodium-2-(((3-methyl -4- “(2,2,2-tri fluoro ethoxy) pyridin-2â€-yl) methyl) sulfinyl)-1H-benzoimidazole -1-carbodithioate] was prepared. This free ligand was synthesized from the reaction of a (RS)-2-([3-methyl -4-(2,2,2-tri fluoroethoxy) pyridin-2-yl] methyl sulfinyl)-1H benzoimidazole, CS2 and NaOH in methanol as solvent. From reaction of dithiocarbamate salt (NaL) with metal ions (M); Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pd(II)â€, have obtained the DTC complexes at general molecular formula [M(L)2(H2O)2] and [Pd(L)2]. To characterize the ligand and its complexes, used different analyses methods such FTIR, UV-Vis, elemental microanalysis, atomic absor
... Show MoreA simple, accurate and precise spectrophotometric method has been developed for the analysis of sulfamethoxazole (SMZ) in pure form and pharmaceutical preparation. The method involves a direct charge transfer complexation of sulfamethoxazole (SMZ) with sodium nitroprusside (SNP) in alkaline medium and the presence of hydroxyl amine hydrochloride. Variables affecting the formation of the formed orange colored complex were optimized following two approaches univariate and central composite experimental design (CCD) multivariate. Under optimum recommended conditions, the formed complex exhibits λmax at 512 nm and the method conforms Beer's law for SMZ concentration in the range of 5.0-150.0 (µg.mL-1) with molar absorptivi
... Show MoreAn accurate and sensitive spectrophotometric method has been developed for the determination of cefotaxime (CEF) in pure and pharmaceutical samples. The suggested method depended on the coupling reaction between diazotized cefotaxime and 3,5-dimethyl phenol (3,5-DMPH) in basic medium to form light orange, water soluble dye, that is stable and has a maximum absorbance at 497nm. The calibration graph was liner over the concentration range (1-70) µg.mL-1 with LOD of 0.750 µg.mL-1 and LOQ of. 2.740 µg. mL-1, sandal sensitivity of 0.0526 µg. cm-2 . molar absorptivity 11328 Lmol-1 cm-1 . The stoichiometry composition was found by Jobs a
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