نفذت تجربة حقلية في احد الحقول التابعة لشركة دبانة للتجهيزات الزراعية الحديثة في منطقة اليوسفية ناحية الرشيد التابعة الى محافظة بغداد والواقعة على خط  بين خطي طول 44^ه شرقا و دائرتي عرض 33^ه شمالا في خلال الموسم الربيعي لعام2022 ، بهدف دراسة تاثير استعمال بعض المستخلصات النباتية والا

The compressive residual stresses generated by shot peening, is increased in a direct proportional way with shot peening time (SPT). For each metal, there is an optimum shot peening time (O.S.T) which gives the optimum fatigue life. This paper experimentally studied to optimize shot peening time of aluminium alloy 6061-T651 as well as using of and analysis of variance (ANOVA).

Two types of fatigue test specimens’ configuration were used, one without notch (smooth) and the other with a notch radius (1,25mm), each type was shot peened at different time. The (O.S.T) was experimentally estimated  to be 8 minutes reaching the surface stresses at maximum peak of -184.94 MPa.

A response surface methodology (RSM) is presen

Airlift reactors are widely used in the chemical and biochemical applications as effective contactors for mass and heat transfer. The main advantages of airlift contactor compared with simple bubble column are ease of construction, low shear rate, high capacity, good mixing and liquid circulation without mechanical agitators and circulating pumps.

In this work, growth characteristics of Chlorella vulgaris microalgae were studied in an internal loop airlift photobioreactor for biomass production. The bioreactor operated under batch and semi-continuous culture mode using commercially available 20:20:20+TE NPK fertilizer as nutrients. The experiments were conducted to evaluate the growth rate and biomass productivity of

The pollution producing from textile industries effluents is growing since the years, due to at discharged lots of it in water without treatment. The resulting effluent is colourful, highly toxic, and poses a significant environmental hazard. This problem can be solved by using enzymic biological treatment, where the Congo red dye was used with concentrations (100,200,300,500) mg /L, pH values (3,4,5,6,7,8), and variable temperatures (25,35,45)°C, the best removal of Congo red (CR) dye  under optimum conditions for degradation was at  concentration of 100 mg/L, at (pH 6, 25 °C) with efficiency of 99.85 % using the peroxidase enzyme extracted from red radish plant, while the removal percentage decreased when increase dye concentration

The performance of a solar cell under sun radiation is necessary to describe the electrical parameters of the cell. The Prova 200 solar panel analyzer is used for the professional testing of four solar cells at Baghdad climate conditions. Voltage -current characteristics of different area solar cells operated under solar irradiation for testing their quality and determining the optimal operational parameters for maximum electrical output were obtained. A correlation is developed between solar cell efficiency h and the corresponding solar cell parameters; solar irradiance G, maximum power P_max, and production date P. The average absolute error of the proposed correlation is 5.5% for 40 data points. The results also show th

This study presents the debonding propagation in single NiTi wire shape memory alloy into linear low-density polyethylene matrix composite the study of using the pull-out test. The aim of this study is to investigate the pull-out tests to check the interfacial strength of the polymer composite in two cases, with activation NiTinol wire and without activation. In this study, shape memory alloy NiTinol wire 2 mm diameter and linear fully annealed straight shape were used. The study involved experimental and finite element analysis and eventually comparison between them. This pull-out test is considered a substantial test because its results have a relation with behavior of smart composite materials. The pull-out test was carried out by a u

 Active worms have posed a major security threat to the Internet, and many research efforts have focused on them. This paper is interested in internet worm that spreads via TCP, which accounts for the majority of internet traffic. It presents an approach that use a hybrid solution between two detection algorithms: behavior base detection and signature base detection to have the features of each of them. The aim of this study is to have a good solution of detecting worm and stealthy worm with the feature of the speed. This proposal was designed in distributed collaborative scheme based on the small-world network model to effectively improve the system performance.

This study evaluates the performance of magnetic abrasive finishing (MAF) of aluminum alloy in terms of achieving materials removal (MR). A vertical milling machine is used to perform the finishing process using a developed MAF unit that consists of an inductor made out of a 150 mm long and 20 mm diameter iron core wound with 1500 turns and 0.5 mm copper wire. The commutator and magnetic pole are attached at the top and bottom of the inductor, respectively. The required current is supplied using a DC power supply. The South Pole workpiece is a 100×50×3 mm³ plate of AA 1100 aluminum alloy, whereas the magnetic pole represented the North Pole. Pole rotational speed, applied current, and abrasive finishing time was selected as

One hundred and eighty five urine samples were collected eight isolates (4.3%) were obtained and diagnosed as Staphylococcus aureus. Among 8 isolates, 5 (62.5%) S. aureus isolates were found to be enterotoxigenic, most of isolates produced at least two types of Staphylococcal enterotoxins (SEs). The production of enterotoxins in the presence or absence of Thymol extracts (aqueous and alcoholic) were estimated using a reversed passive latex agglutination (SET-RPLA) kit. The extracts reduced enterotoxin production compared with the control. Enterotoxin inhibition was observed for enterotoxin C production at minimal inhibitory concentrations (MIC) at 400 µg/ml, whereas production of enterotoxins A, B, and

A solar updraft tower power plant (solar tower) is a solar thermal power plant that utilizes a combination of solar

air collector and central updraft tube to generate an induced convective flow which drives pressure staged turbines to generate electricity.

 This paper presents practical results of a prototype of a solar chimney with thermal mass, where the glass surface is replaced by transparence plastic cover. The study focused on chimney's basements kind effect on collected air temperatures. Three basements were used: concrete, black concrete and black pebbles basements. The study was conducted in Baghdad from August to November 2009.

The results show that the best chimney efficiency attaine

The monthly time series of the Total Suspended Solids (TSS) concentrations in Euphrates River at Nasria was analyzed as a time series. The data used for the analysis was the monthly series during (1977-2000).

The series was tested for nonhomogenity and found to be nonhomogeneous. A significant positive jump was observed after 1988. This nonhomogenity was removed using a method suggested by Yevichevich (7). The homogeneous series was then normalized using Box and Cox (2) transformation. The periodic component of the series was fitted using harmonic analyses, and removed from the series to obtain the dependent stochastic component. This component was then modeled using first order autoregressive model (Markovian chain). The above a

تعتبر طرق البحث الكمي حاسمة في فهم سلوك المستهلك في الأسواق الحديثة. تتضمن هذه الطرق جمع وتحليل البيانات الرقمية للكشف عن الأنماط والاتجاهات والارتباطات المتعلقة بتفضيلات المستهلك واختياراته. يمكن للباحثين اكتساب رؤى حول هوية المستهلك وقيمه وذوقه وتجاربه الاستهلاكية وحتى موضوعات مثل العلامات التجارية غير المرئية والثقافة المادية والأهواء في الاستهلاك المعاصر من خلال استخدام النماذج الإحصائية. بال

Abstract

    Corrosion-fatigue occurs by the combined actions of cyclic loading and corrosive environment. The effect of shot peening on cumulative corrosion-fatigue life of 1100-H12 Al alloy was investigated. Before fatigue testing, specimens were submerged in 3.5%NaCl solution for 71 days. Constant fatigue tests were performed with and without corrosive environment. Cumulative corrosion-fatigue tests were also carried out in order to determine the fatigue life before and after shot peening. The constant fatigue life was significantly reduced due to corrosive environment and the endurance fatigue limit was reduced by 13% compared with dry fatigue. In case of shot peening the cumul

The research aims to how to deal with certain situation to ensure the continuous competitive excellence of business market under the situation of covid-19, especially how to deal with major challenges, identifying the capabilities of tourism industry, investigating the ability of tourism agencies to resist the dynamic change of both internal as well as external environment to ensure their sustainability.

The important here as the paper notice, is how to be efficient and trying to find solutions in order to grow and survive through choosing certain strategies that aligned the critical issues.

Thus to achieve this level, many scenarios planed that could adopt in case of such pande

اجريت تجربة حقلية في احد الحقول التابعة الى المعهد التقني في الشطرة للموسوم2022 الربيعي لدراسة تأثير سرعة الجرار وبثلاث مستويات هي 2.50 و 3.18 و 3.60 كم/ ساعة والعامل الثاني سرعة الناقل السلسلي وبمستويين هما  43 و49 م/ دقيقة والعامل الثالث نوع الناقل وبمستويين هما قضبان مغلفة بالمطاط وقضبان مغلفة بالقماش في امكانية تقليل الفقد الكمي والنوعي لدرنات البطاطا باستعمال قالعة البطاطا.   &nbsp

The current study aimed to determine the relation between the lead levels in the blood traffic men and the nature of their traffic work in Baghdad governorate. Blood samples were collected from 10 traffic men and the age about from 20-39 year from Directorate of Traffic Al Rusafa/ Baghdad and 10 samples another control from traffic men too with age 30-49 year and they livedrelatively in the clear cities or contained of Very few traffic areas. The levels of lead in blood estimated by used Atomic Absorption Spectrometry.
The result stated that there is no rising of the levels of lead in blood of traffic men Lead concentration was with more a range from 14 ppm in Traffic police are not healthy They are within the permissible limits, Ap

The adsorption of Pb(II) ions onto bentonite and activated carbon was investigated. The effects of pH, initial adsorbent dosage, contact time and temperature were studied in batch experiments. The maximum adsorption capacities for bentonite and activated carbon were 0.0364 and 0.015 mg/mg, respectively. Thermodynamic parameters such as Gibbs free energy change, Enthalpy change and Entropy change have been calculated. These thermodynamic parameters indicated that the adsorption process was thermodynamically spontaneous under natural conditions and the adsorption was endothermic in nature. Experimental data were also tested in terms of adsorption kinetics, the results showed that the adsorption processes followed well pseudo second- order

    The synthesis , characterization and mesomorphic behaviour of new Nacyl , thiourea and imidazole derivatives which derived from corresponding Schiff bases are reported.             All the synthesized compounds which contain flexible methylene group in the centre of the molecule did not show any liquid crystalline properties . The derivatives of N- acyl [III]e  and thiourea [VI]e  which contain  biphenyl and all compounds with one phenyl in the centre of the molecule display liquid crystalline behaviour .While the imidazoles did not show any liquid crystalline properties except [V]b [V]e  with biphenyl in the centre of the molecule . All th

Amino glycoside derivation including, Neomycin, Streptomycin, Kanamycin and Gentamycin with special reagents, which  are  benzoylchloride; benzene sulfonyl chloride and phthalic anhydride were made to enhance Uv-detectability for HPLC analysis. But there are many problems facing pre column derivation and in order to solve this, the conductivity of antibiotic derivatives were used to calculate the dissociation constant and the hydrolysis rate which determined concern type reaction. In addition the  characteristics those controlling the hydrolysis of antibiotic-derivatives were investigated.

 This paper comprises the design and operation of mono-static backscatter lidar station based on a pulsed Nd: YAG laser that operates at multiple wavelengths. The three-color lidar laser transmitter is based on the collinear fundamental 1064 nm, second harmonic 532 nm and a third harmonic 355nm output of a Nd:YAG laser. The most important parameter of lidar especially daytime operations is the signal-to-noise ratio (SNR) which gives some instructions in designing of lidar and it is often limit the effective range. The reason is that noises or interferences always badly affect the measured results. The inversion algorithms have been developed for the study of atmospheric aerosols. Signal-to-noise ratio (SNR) of three-color channel re

       يعد النظام المائي ثنائي الطور (ATPS) بديلاً نظيفًا لأنظمة استخلاص مذيبات المياه العضوية التقليدية. أثبتت هذه التقنية فعاليتها العالية في استخلاص وفصل مخاليط الجزيئات الحيوية. تضمن البحث الحالي استخلاص إنزيم الإنفرتيز من درنات البطاطس باستخدام ATPS . النظام المطبق هو: البولي إيثيلين جلايكول 8000 مع ثنائي فوسفات البوتاسيوم (PEG8000/PPH) . بحثت الدراسة في تأثير خمسة عوامل وهي درجة الحرارة، وتركيز PEG8000، وتركيز فوسف

In this research, a selection of some mineral water was selected on the basis of being the most marketed by the owners of shops in Najaf province, with six types, where daily samples of this water were taken by 50 ml for two months from (1/11/2018 -1/1/2019). The following ions concentrations were measured (Br-, Cl-, F-, NO3-, SO42-, Na+, K+, Ca2+, Mg2+), pH and the electrical conductivity were measured and the results were compared with the allowable rates according to the international organizations. It was noted that they conform to international and Iraqi standards.

تعد الفيتامينات من المواد الآمنة التي ليس لها ضرر على الانسان والحيوان وتستخدم من اجل تحسين نمو النبات وتكوين الازهار وهي عبارة عن مواد عضوية توجد بعدة صور وتعد من المكملات الغذائية الدقيقة والأساسية للنمو والانتاج السليم تقوم بوظائف مختلفة من خلال تكوين وبناء انسجة جديدة، وتشارك في العمليات الفسيوكيميائية وتكون ذات تأثير سريع وملموس لقيام النبات بوظائفه ونموه، فضلا عن اهميتها في ت

This study was conducted to evaluate the effect of adding resveratrol on fat oxidation and some qualitative and microbial characteristics of ground beef cold storage at 2 C° for 1, 3, 6, 9 and 12 d. All resveratrol treatments significantly increased myoglobin concentration as compared with control treatment during cold storage periods. There was a significant decrease in peroxide value (PV) (P<0.05), the percentage of the drip loss and cooking loss between the different treatments as compared with control treatment during cold storage periods. Resveratrol treatments also significantly (P˂0.05) reduced the numbers of psychrophilic bacteria during cold storage periods.

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The linear segment with parabolic blend (LSPB) trajectory deviates from the specified waypoints. It is restricted to that the acceleration must be sufficiently high. In this work, it is proposed to engage modified LSPB trajectory with particle swarm optimization (PSO) so as to create through points on the trajectory. The assumption of normal LSPB method that parabolic part is centered in time around waypoints is replaced by proposed coefficients for calculating the time duration of the linear part. These coefficients are functions of velocities between through points. The velocities are obtained by PSO so as to force the LSPB trajectory passing exactly through the specified path points. Also, relations for velocity correction and exact v

أجريت هذه التجربة في أحد الحقول التابعة لكلية علوم الهندسة الزراعية، جامعة بغداد- محطة البحوث (F) في الجادرية. لمعرفة تأثير الزيولايت الطبيعي والسماد العضوي (مخلفات الدواجن) والأسمدة المعدنية وتداخلاتها في بعض خصائص التربة ونمو وحاصل اللهانة صنف "دنيا" أجريت تجربة حقلية في فصل الخريف 2021. صممت التجربة تحت تصميم القطاعات الكاملة المعشاة وبتصميم التجربة العاملية  

Constitute a planning problem on the basis of personal experience and self-governance in the service organizations away from quantitative scientific method in planning an anchor and a platform, who made a recent research study, analysis and interpretation through scientific methodology adopted which formed its contents, The research aims to identify the true reality of production planning in service organizations, specifically in the Baghdad Hotel as a society to look, in order to assess the best strategy through the standard cost of the strategies of tracking and settlement to cope with developments on services demand changes, Search results confirmed that the settlement rates of production strategy is the best strategy in accordance wi

            The research aimed to develop therapeutic products by producing yogurt fortified with nano-zinc and studying the effect of feeding this product on some vital indicators of laboratory mice.  One of the most important results reached is that nano-zinc has a clear role in reducing daily and final weight gain in a way that is directly proportional to the amount of nano-zinc added compared to the C+ positive control group, it also significantly reduced (P>0.05) the levels of total cholesterol (TC), triglycerides (TG), and bad fats low density lipoprotein (LDL) and very low density lipoprotein (VLDL), and a significant increase

The aim of this study is to evaluate the anti-pyocyanin and anti-hemolytic efficacies of lactobacilli probiotics isolated from natural and commercial sources against pathogenic Pseudomonas aeruginosa (P. aeruginosa).

Two isolates of P. aeruginosa (P50 and P78), which were determined as multidrug-resistant bacterial strains, were obtained from one hundred-thirty samples, including burn, wound, ear, sputum, and urine, collected from patients attending a number of hospitals in Baghdad, including Al-Karkh Hospital,  Al Kadimyia Teaching Hospital, and  Medical City Hospitals (Al-shahid Ghazi Al-Hariri Hospital for Surgical Specialties, Baghdad Teaching Hospital and

The study aims mainly to evaluate the performance of Sharq Dijila water treatment plant in removing turbidity for the period of 1-4-2001 to 31-3-2004. Daily data for turbidity of raw, clarified, filtered, and supplied water were analyzed. The results of the study showed that there is a wide variation in turbidity levels of raw water fluctuating between 10-1000 NTU with mean value of 41.3 NTU. Turbidity values of the clarified water varied between 1.4-77 NTU. Based on the turbidity value of 10 NTU and 20 NTU (the design maximum turbidity) the readings gave an acceptable percentage of 32.4% and 86% respectively. The turbidity of filtered water ranged between 0.2-4.5 NTU which are completely in compliance with Iraqi and WHO standards. In ac