For modeling a photovoltaic module, it is necessary to calculate the basic parameters which control the current-voltage characteristic curves, that is not provided by the manufacturer. Generally, for mono crystalline silicon module, the shunt resistance is generally high, and it is neglected in this model. In this study, three methods are presented for four parameters model. Explicit simplified method based on an analytical solution, slope method based on manufacturer data, and iterative method based on a numerical resolution. The results obtained for these methods were compared with experimental measured data. The iterative method was more accurate than the other two methods but more complexity. The average deviation of

The present research is concerned with the future phase-out of halocarbon types of refrigerants used in the vapor compression refrigeration systems. A window-type air conditioner is selected for the tests to be conducted with two different refrigerants. It is well known that these cooling units are wide spread in their applications and are circulating R-22 as a refrigerant. It is intended to replace this type of refrigerant by another type which is considered to be as environmental friendly refrigerant for smooth operation. The refrigerant selected for this object was R-407C for its favorable thermal properties and acceptable pressure and temperature ranges. The effect of replacing this refrigerant as a substitute on the performance of t

 يعد فسخ عقد البيع الدولي أحد الحلول التي يلجأ إليها الطرفان والقانون لحل بعض المخالفات الجوهرية التي تطرأ على العقد لأي سبب من الأسباب ولكن تحديد السبب الجوهري الذي يؤدي لفسخ العقد هو أقصى أنواع معالجة المخالفة الجوهرية التي اختلف في تفسيرها من قبل الخبراء الدوليين سواء ً كانت محاكم دولية أو هيئات ولجان تحكيم دولية. ونسبة لصعوبة تحديد المخالفة الجوهرية التي تؤدي لفسخ العقد والاستثناءات الواردة بخصوص ال

إن سلطة الدولة في تنظيم دخول واقامة الاجانب اليها تتسم بقدر كبير من الحرية, ولا يحدها الا قواعد القانون الدولي التي تفرض على الدول احترام الحد الادنى المتعارف عليه في معاملة الاجانب, وصولا الى الحماية المثلى لحقوق الانسان أيا ما كان المجتمع الذي يعيش فيه, دون النظر الى جنسيته او موطنه, ومهما يكن من امر فإن الاجنبي قد اصبح حاليا من المخاطبين بأحكام قانون الدولة التي يقيم فيها, ويتمتع بالحقوق التي يكفلها له كيا

Gypseous soils are widely distributed and especially in Iraq where arid area of hot climatic is present. These soils are considered as problematic soils; therefore this work attends to improve the geotechnical properties of such soil and reduce the dangers of collapse due to wetting process. In this research, undisturbed soil sample of 30 % gypsum content from Karbala city is used. The Single Oedometer collapse test is used in order to investigate the collapse characteristics of natural soil and after treatment with 3%, 6%, 9%, 12% and 15% of Cutback Asphalt. Moreover, two selected additive percentages (9% and 12%) are used to evaluate the suitability of using the Cutback Asphalt for improvement of the bearing capacity o

The paper uses the Direct Synthesis (DS) method for tuning the Proportional Integral Derivative (PID) controller for controlling the DC servo motor. Two algorithms are presented for enhancing the performance of the suggested PID controller. These algorithms are Back-Propagation Neural Network and Particle Swarm Optimization (PSO). The performance and characteristics of DC servo motor are explained. The simulation results that obtained by using Matlab program show that the steady state error is eliminated with shorter adjusted time when using these algorithms with PID controller. A comparative between the two algorithms are described in this paper to show their effectiveness, which is found that the PSO algorithm gives be

This study was conducted on 67 local doe goat, aged from 2-5 years old. The overall mean of TMY, DMY and lactation length of 1^st and 2nd flocks were (130.541 ± 7.403 kg, 0.716 ± 0.033kg, and 182.432 ± 4.112 day) and (164.043 ± 8.788 kg, 0.832 ± 0.043 kg, 197.027 ± 2.650 day), respectively. The flock, age of doe, doe coat color, month of kidding and type of birth have significant effect on TMY and DMY, doe in 2^nd flock production 33.502 and 0.116 kg milk/doe, respectively more than doe in 1^st flock. Doe of five years old yielded (181.878 ± 10.171 kg /doe) and (0.892 ± 0.044 kg /doe/day) more milk than young doe. Doe kidding in Januarys were consistently produced high significantly (p≤0.00

This study was aimed to extract, purify and characterize the pancreatic elastase from the Catfish (silurus trioseegus) digestive duct. Different extraction solutions were used to optimize the extraction condition being (Distilled water, 200 mM NaCl, Phosphate buffer (100 mM, pH 8), the latter buffer Tis-HCl (100 mM, pH 8) both  containing 0-100 mM NaCl or CaCl₂ separately). Tris-HCl buffer containing 100 mM CaCl₂ was the best among the rest extraction solutions. The crude extract was precipitated using a 30 % - 55 % of ammonium sulfate saturation ratio. The crude precipitate was dissolved in the same buffer and dialyzed. Then the dialyzed preci

This research was aimed to study and analyze the impact of the shocks of the agricultural net terms of trade (NBTT) on agricultural product (AP) in Iraq during the period (1990 – 2021), which are among the shocks affecting the agricultural sector and foreign trade, the research used quantitative approaches in estimating the levels of impact, including VAR model, variance decomposition analysis (VDA) and impulse response function (IRF). The results showed that VDA of AP was weak in respect of agricultural NBTT and vice versa. While IRF of NBTT was negative in respect of Ap, and the same result was for IRF of AP. The study recommended the need to consider strategies to support smallholder farmers, such as providing access to cred

The study was conducted us to identify the genetic features of the microsatellite markers CSSM66 and ETH10 and ILSTS34 and their relationship to genetic diversity and productive performance  this study was carried  out using 100 cows of five breeds presented in Iraq ; Restaki (n=10) , Janoubi (n=10) , Sharabi (n=10) , (local), Holstein (n=50) and  male Brahman (n=20) (imported).The results showed the presence of a very high diversity and a highly significant difference in a sample of studied cows in the allele distribution ratios for the three markers, the results showed a significant effect (P≤0.05) superiority of the genotype LY within the ETH10 marker in the least number of inseminatons required for fertilizat

Wellbore instability is a significant problem faced during drilling operations and causes loss of circulation, caving, stuck pipe, and well kick or blowout. These problems take extra time to treat and increase the Nonproductive Time (NPT). This paper aims to review the factors that influence the stability of wellbores and know the methods that have been reached to reduce them. Based on a current survey, the factors that affect the stability of the wellbore are far-field stress, rock mechanical properties, natural fractures, pore pressure, wellbore trajectory, drilling fluid chemicals, mobile formations, naturally over-pressured shale collapse, mud weight, temperature, and time. Also, the most suitable ways to reduce well

This study was aimed to one of the most prevalent causes for endodontic treatment failure is the presence of Enterococcus faecalis bacterium within teeth root canals. To achieve successful treatment, it is so important to study E. faecalis behavior. The aim of study was to investigate biofilm production and antibiotic sensitivity of E. faecalis isolated from root canals. Results showed isolation of E. feacalis (65%) of samples, identified by specific gene by PCR technique. Most isolates were sensitive to Imipenem and resistant to Erythromycin, Clindamycin, Tetracycline and Trimethoprim. Strong biofilm production was detected among 29.5% of highest antibiotic resistant isolates. The results may

       اصدرت المحكمة الاتحادية العليا قرارها المرقم (48/اتحادية /2021) في 6/6/2021 والمتضمن تقرير اختصاص المحكمة الاتحادية العليا الاستثنائي بتفسير التشريعات سواء كان التفسير بمناسبة الفصل بمنازعه معروضه امامها للفصل بدستورية نص او تشريع، او بناء على طلب اصلي بالتفسير من احد السلطات الاتحادية، ووفق ضوابط محددة ذكرتها في قرارها

Coagulation - flocculation are basic chemical engineering method in the treatment of metal-bearing industrial wastewater because it removes colloidal particles, some soluble compounds and very fine solid suspensions initially present in the wastewater by destabilization and formation of flocs. This research was conducted to study the feasibility of using natural coagulant such as okra and mallow and chemical coagulant such as alum for removing Cu and increase the removal efficiency and reduce the turbidity of treated water. Fourier transform Infrared (FTIR) was carried out for okra and mallow before and after coagulant to determine their type of functional groups. Carbonyl and hydroxyl functional groups on the surface of

The vortex rate sensor is a fluidic gyroscope with no moving parts and can be used in very difficult conditions like radiation, high temperature and noise with minimum cost of manufacturing and maintenance. A vortex rate sensor made of wood has been designed and manufactured to study theoretically and experimentally its static performance .A rig has been built to carry out the study,
the test carried out with three different air flow rates (100, 150, and 200 l/min).The results show that the relation between the differential pressure taken from the sensor pickoff points and the angular velocity of the sensor was linear.The present work involved theoretical and experimental study of vortex rate sensor static characteristics .Vortex rat

This research shows the experimental results of the bending moment in a flexible and rigid raft foundation rested on dense sandy soil with different embedded depth throughout 24 tests. A physical model of dimensions (200mm*200mm) and (320) mm in height was constructed with raft foundation of (10) mm thickness for flexible raft and (23) mm for rigid raft made of reinforced concrete. To imitate the seismic excitation shaking table skill was applied, the shaker was adjusted to three frequencies equal to (1Hz,2Hz, and 3Hz) and displacement magnitude of (13) mm, the foundation was located at four different embedment depths (0,0.25B = 50mm,0.5B = 100mm, and B = 200mm), where B is the raft width. Generally, the maximum bending

The theme of the Abbasid Caliph and their children great interest in the knowledge and effective not only in the history of civilization but in the history of the humanity and the sublime values. Their interest and care for the scholar ulamaa and rendering help and encouragement by their caliphs were keen for science and knowledge because whatever the scholars have a status they cannot give help without and knowledge and the practice of their role in the interest and the care.

This study was aimed to detect the phzS and phzM genes in Pseudomonas aeruginosa clinical isolates that form pyocyanin and resist antibiotics. The study was conducted by collecting 240 samples from different clinical sources (burns, wounds, urinary tract, and ear infections) at Medicine City laboratories Baghdad-Iraq. Only 140 samples were diagnosed as P. aeruginosa, with the major identification depending on morphological characteristics, biochemical tests, the Vitek 2 compact system, and molecular detection of the

This study  was aimed to explain the effect of the crude extract and the flavonoid extract of Capparis spinosa L flowers as an antioxidant in vitro and the effect of the flavonoid extract as an antioxidant in the tissues of kidney cells. Different concentrations(7.5, 15, 30, 60, 150, 300, 600)  µg/ml of the two extracts were selected to determine the antioxidant activity in vitro by using DPPH 1,1 Dyphenyl-2-picrylhydrazyl radical. The results showed the efficiency of the flavonoid extract on the crude extract, and it was the highest at concentrations of 150, 300, and 600µg/ml, as it gave 100% compared with the crude extract, which gave 40%, 67%, 75% and fo

This study was aimed to isolate and identify fungi contaminating raisin samples and evaluate the effectiveness of bacteria in inhibiting fungal growth and reducing toxin levels. The isolation results the fungus A. flavus was the most frequent and appeared in the samples, reaching 54.5 and 44.4%, respectively. The results showed that all isolates of A. flavus had the ability to produce aflatoxin B1, as confirmed by the ammonia vapor test. The isolate with the highest toxin production was identified through nucleotide sequences deposited in the World Genomic Organization's Gene Bank under accession number OR192858. The results demonstrated the ability of the live bacteria

This study aimed to evaluate the suitability of land for irrigated wheat cultivation in the Ali Al-Gharbi area in Maysan Governorate.A semi detailed soil survey was conducted covering an area of 77244.66 hectares. 15 pedons were described and 40 surface samples were collected. The study area included three physiographic units: the riverbed unit, the river basin unit, and the depressions unit. Land suitability assessment was conducted following the methodologies outlined by Sys et al., 1993, and the approach proposed by Al-Rubaie )10(. This evaluation encompassed soil characteristics, topography, and irrigation water needs. The results indicated that the determining factor for wheat cultivation is soil salinity an

This study presents a detailed morphology and taxonomic study of Polysiphonia subtilissima collected from Abdul Rehman Goth, Karachi coast, Pakistan. Polysiphonia is a filamentous heterotrichous red algae, characterized by its branching structures and attachment mechanisms. P. subtilissima is notable for its broad salinity tolerance and wide distribution across marine and freshwater ecosystems. This research provides an in-depth examination of the internal and external structures of P. subtilissima, contributing to its systematic study and documenting its first recorded occurrence in Pakistani coastal areas, bordering the northern Arabian Sea. The findings enhance the understanding of the speci

Deploying drones in agriculture improves resource management and crop monitoring by providing real-time data on insect infestations, plant growth, soil conditions, and irrigation requirements. This study highlights the weather hazards for launching and flying agricultural drones in Iraq. The ten most popular drones for agriculture were chosen, and the weather limitations were determined. Hourly climate data (wind speed, temperature, precipitation, and visibility) in file format NetCDF were used for the period 2004–2023. The Python programming language was used to perform analyses on climate data and calculate the percentage of flight ban frequency due to weather hazards during the study period. Using ArcGIS v.10.8, maps were cr

This study aimed to determine whether zinc methionine supplements have a beneficial effect on the immune response in broilers vaccinated against Newcastle disease (ND). A total of 120 broiler chicks were randomly divided into 6 groups. G1 were fed a basal diet and kept as a negative control G2 and G3 were fed 90 mg/kg of zinc methionine in a basal diet. The two groups were vaccinated with killed and live NDV groups 2 and 3 respectively.  Group 3 consisted of chickens vaccinated with live ND vaccine in drinking water, while Group 4 consisted of chickens fed with zinc methionine supplementation 90 mg/kg of basal diet, but not vaccinated (positive control). G5 and G 6 consisting of chickens were vaccinated as mentioned in G2 an

This research was done to conducted to determine TEN taxa of the Cucurbitaceae family were studied using the RAPD approach to examine taxonomic relationships and genetic diversity, including Cucurbita pepo, Cucurbita maxima, Laganaria siceramia L.C.V. local, Laganaria siceramia L.C.V. Syria, Cucumis sativus, Cucumis melo, Cucumis melo flexuosus, Citrullus lanatus, Citrullus colocynthis, Luffa cylidrica, DNA of fresh leaves was extracted using modified protocol of Kit  due, invested DNA Marker based PCR technology using the RAPD Marker using Thirteen RAPD primers of (Operon) technology biologging to (Bio-RP1

Electrospun Whey protein membranes reinforced with electrospun chromium oxide nanofibers were utilized for the packaging of beef burger, which were subsequently frozen and stored for 3 months. The chromium oxide nanofibers were incorporated into the membranes at two concentrations 6, 8 %. The study exhibited promising results for the electrospun nanofibers, as their addition contributed to reducing the total bacterial count, psychrophilic bacterial count, and coliform count during the storage period, at both concentrations: 4.89 × 10³, 4.36 × 10³, 3.28 × 10¹, 2.48 × 10³, and 2.79 × 10³ colony-forming units per gram (CFU/g), respectively. Meanwhile, the moisture, protein,

This study was amied to investigate morphological  characteristics of pollen grains  and fruits for eleven species belonging to the tribe Brassiceae of cruciferae family, species are: Brassica rapa L , Braasica deflexa Boiss. ,Brassica nigra (L.) brassica juncea(L.), Brassica tournefortii Gouan, Brassica oleracea L.,  sinapis arvensis L., Hirschfeldia incana(L.) ,Savignya paraflora(Del.) ,Raphanus sativus L. ,Eurca sativa Mill., pollen grains were studied morphologically and  all dimentions were recorded. The result of this study  showed that most pollen grains are tricolpate ,their size varied between small ,medium

This study aims to show, the strength of steel beam-concrete slab system without using shear connectors (known as a non-composite action), where the effect of the friction force between the concrete slab and the steel beam has been investigated, by using finite element simulation.

The proposed finite element model has been verified based on comparison with an experimental work. Then, the model was adopted to study the system strength with a different steel beam and concrete slab profile. ABAQUS has been adopted in the preparation of all numerical models for this study.

After validation of the numerical models, a parametric study was conducted, with linear and non-linear Regression analysis. An equation re

Alginate from Large brown seaweeds act as natural polymer has been investigated as polymer and has been added to concrete in different percentages ( 0% , 0.5% , 1% and 1.5% ) by the cement weight and the study show the effect of using alginate biopolymer admixtures on  some of the fresh properties of the concrete (slump &  the density  fresh) also in the hardened state (  Compressive strength , Splitting tensile strength  and Flexural strength ) at 28 days. The mix proportion was (1:2.26:2.26) (cement: sand: gravel) respectively and at constant w/c equal to 0.47. The results indicate that the use of alginate as a percent of the cement weight possess a positive effect on fresh properties of co

This study was aimed  to investigate the potential of cellulose gum as a substitute for fat in Mozzarella cheese production and evaluate its impact on the cheese's physicochemical, rheological, and sensory properties. Cellulose gum was added in different ratios of 0.1, 0.2, 0.3, 0.4, and 0.5%, revealing treatments  A₁, A₂, A₃, A_4, and A₅ to skimmed milk, respectively. As well as the positive control treatment C+ manufactured from whole milk, there is a negative control treatment C- made from skimmed milk without cellulose gum. After processing, several tests were conducted to determine the quality of the product. Chemical tests were carried out to measure moisture,