In this paper. the dynamic response of Ruttha sand with different relative densities is studied by using equivalent linear model
The equivalent linear model is adopted in which the soil properties are strain dependent but cycle independent. The shear modulus tends to decrease as the shear strain increases, while the damping ratio tends to increase as the shear strain increases The computer program SHAKE, developed at the University of California, Berkley, is used for predicting and analyzing the problem. The study reached that the magnitude of the acceleration is increasing as the relative density is decreasing and the natural frequency of the structures that would be built on Al- Ruttba soil must ot be equal to (4 c/sec.) to avo
... Show MoreOne of the most urgent issues confronting cities in the south of the globe is urban expansion brought on by population increase. Iraq's capital, Baghdad, is a striking example of this change. This study examines how Baghdad's agricultural land was converted into residential areas between 2003 and 2024, with a special emphasis on the neighborhoods of Dura, Al-Buaitha, and Krayat. During this period, Baghdad's population grew from 5.6 million to nearly 9.1 million, and the city's land usage drastically changed. Due to housing needs and infrastructure development, population increase has a direct impact on land consumption, as seen by this geographical expansion. The study illustrates the adverse correlation between urbaniz
... Show MoreThis study aims to improve mild steel's corrosion resistance in marine applications. Mild steel has low corrosion resistance, especially in salty conditions, so enhancing this property is required. This study aims to increase the corrosion resistance of mild steel by heat treatment processes. The specimens were heated to the temperature of 800°C, then the specimens were separated into two groups, specimens of both of the groups cooled inside a furnace (annealing), cooled in air to room temperature (normalizing), and cooled in water (quenching), then the first group of specimens was immersed in salinity of (33.9) ppt for 45 days, and the other group of specimens was immersed in salinity of (37.8) ppt for 45 days. The cor
... Show MoreThe study of surface hardness, wear resistance, adhesion strength, electrochemical corrosion resistance and thermal conductivity of coatings composed from sodium silicate was prepared using graphite micro-size particles and carbon nano particles as fillers respectively of concentration of (1-5%), for the purpose of covering and protecting the oil distillation towers. The results showed that the sodium silicate coating reinforced with carbon nano-powder has higher resistance to stitches, mechanical wear, adhesive and thermal conductivity than graphite/sodium silicate composite especially when the ratio 5% and 1%, the electrochemical corrosion test confirmed that the coating process of stainless steel 304 lead to increasin
... Show MoreApplying load to a structural member may result in a bottle-shaped compression field especially when the width of the loading is less than the width of bearing concrete members. At the Building and Construction Department – the University of Technology-Iraq, series tests on fibre reinforced concrete specimens were carried out, subjected to compression forces at the top and bottom of the specimens to produce compression field. The effects of steel fibre content, concrete compressive strength, transverse tension reinforcement, the height of test specimen, and the ratio of the width of loading plate to specimen width were studied by testing a total of tenth normal strength concrete blocks with steel fibre and one normal s
... Show Moreتناول هذا البحث الاوضاع الاجتماعية في إمارة شرق الأردن خلال سنوات الأزمة الاقتصادية العالمية (1929-1933) التي ظهرت في الاولايات المتحدة الاميركية وطالت تاثيرتها اغلب دول العالم عدا الاتحاد السوفيتي ومن تلك الدول إمارة شرق الأردن , التي كانت تعاني من أزمة اقتصادية محلية خانقة تمثلت بقلة الأمطار والجفاف وغزو أسراب الجراد والآفات التي اصابت المزروعات , تزامنت مع الأزمة الاقتصادية العالمية التي ضرب أطانبها كاف
... Show MoreCommercially pure titanium (cpTi) is widely used as dental implant material although it was found that titanium exhibited high modulus of elasticity and the lower corrosion tendency in oral environment. Niobium(Nb) was chosen for this study as an alternative to cpTi implant material due to its bioinert behavior and good elastic modulus and moderate cost in addition to corrosion resistance. This study was done to evaluate the effect of biomimetic coating on the surface properties of the commercially pure titanium and niobium implants by in vitro and in vivo experiments. The in vitro study was involved etching the samples of each material in HCl then soaking in 10M NaOH aqueous solution. These samples were then immersed in a 5 times concent
... Show MoreThis study was conducted to compare the effect of adding organic chromium (Biochrome) and
organic acids (Galli acids) for reducing experimentally infected broiler chicks by Salmonella
typhimurium . A total of 400 one day old broiler chicks were divided into four dietary groups which
were: un-treated negative control (T1) , 044 ppb organic chromium / kg feed (T2) , 4.0 of organic acids
/ kg feed (T3) and positive control (T4) . After one day of feeding T2 ,T3 and T4 chicks were oral
experimentally infected by S. typhimurium. Results have shown :
Mortality of positive control broiler chicks were 70 % , added organic chromium and organic acids
reduced chicks mortality tto 10 % in each , also the results revealed that th
الملخص: البحث جزء من أطروحة الدكتوراه التي أعكف على إنجازها تحت عنوان ((الاستدلال البلاغي عند البلاغيين العراقيين من القرن الاول حتى القرن العاشر)، يتناول الاستدلال بالتعليل وبيان مدى توظيف هذه الآلية في الدرس البلاغي العربي القديم من جهة، ولتوضيح مظاهر العملية الاستدلالية. بحيث تطرقت الدراسة بدايةً إلى مفهوم الاستدلال بالعلة، ثم درست هذه الآلية ومدى اعتمادها في المدونات البلاغية النقدية العربية قديماً،
... Show MoreAbstract Since 2003. Iraq has begun a new phase in its modern history, which was after a long period of tyranny, repression of freedom of expression, and women were no better off than men; they suffered marginalization and exclusion, but after the fall of the former regime and the adoption of a parliamentary system of government, The level of participation in the government; where it approved the share of women in the legislative authority called "quota" which reflects the legislative level of a certain proportion of the seats in Parliament, amounting to 25%, and this is approved by the Iraqi constitution for 2005. But it is noticeable that women in parliament did not work within the quota; in other words they belonged to the pol
... Show MoreBackground: Polycystic ovarian syndrome (PCOS) is a complex endocrine problem affecting women with an estimated global prevalence of 9%, due to inherited and environmental causes. PCOS mainly impacts women aged 15-35 years, and women who are at their earliest or final period of pregnancy. Subfatin is a newly identified hormone that controls metabolism and is thought to be a biomarker for PCOS and metabolic syndrome. Vitamin D3 has an important function in the development of PCOS.
Objective: To explore the effect of obesity on Subfatin and D3 levels, and the impact of the pathophysiology of PCOS on Subfatin and D3 levels.
Methods: The total number of participants was 120: 80 fem
Background: Hypothyroidism is the most abundant thyroid disorder worldwide. For decades, levothyroxine was the main effective pharmacological treatment for hypothyroidism. A variety of factors can influence levothyroxine dose, such as genetic variations. Studying the impact of genetic polymorphisms on the administration of medications was risen remarkably. Different genetic variations were investigated that might affect levothyroxine dose requirements, especially the deiodinase enzymes. Deiodinase type 2 genetic polymorphisms’ impact on levothyroxine dose was studied in different populations.
Objective: To examine the association of the two single nucleotide polymorphism (SNP)s of deiodinase t
... Show MoreIn the region of the north of Iraq using the method of analyzing thin section microfacies to 38 of rockyslices which were gathered from a place near Aqra city. These slides are divided into seven microfacies depending on lithologcal component and fossils.
1) Dolostone facies.
2)Recrystallized bioclastic wackestone facies.
3) Bioclastic packstone microfacies
4)Sucrosic dolomite facies.
5) Bioclastic grainstone in microfacies.
According to water energy, these facies were divided to three zone:
- a) Low energy environment.
- b) Transitional zone.
- c) High energy environment.
The objective of this study was to determine the effect of adding aspirin to the diet on some
biochemical parameters such as blood serum glucose , cholesterol , uric acid , total protein ,
phosphorus and calcium concentrations of broilers reared in high density (15 birds / m ) . A 90 chicks 7
days old were distributed into two treatments (45 chicks per treatment ) , T1 chicks fed a diet without
aspirin (control) , chicks in T2 fed a diet supplemented with 0.2 % aspirin (2 mg aspirin / kg feed) .
Each treatment subdivided into three replicates and each replicate reared in 1 X 1 m pen . The data
obtained revealed the following:
Blood serum glucose concentration were 189 mg /100 ml , cholesterol concentration were 207
Out of 704 sheep examined from three provinces (Baghdad, Hilla and Diala) in the central part of Iraq, 323(45.88%) were infected with Theileria hirci, 80 (11.36%) with Anaplasma ovis and 19(2.70%) with Babesia motasi. The percentage of sheep infected with Th. Hirci was much higher (P < 0.01) than those with A. ovis and B. motasi. The rate of infection with Th. hirci and A. ovis but not B. motasi increased with advancing age. There was no significant (P>0.05) difference in the rate of infection between males and females
Autorías: Muwafaq Obayes Khudhair, Hayder Talib Jasim, Ahmed Thare Hani. Localización: Revista iberoamericana de psicología del ejercicio y el deporte. Nº. 6, 2022. Artículo de Revista en Dialnet.
The ancient kingdom of Mari located in the upper Euphrates River, 11 km inside the Syrian border, the Kingdom has gained political and economic importance by its geographical location, it featured a point communication between Mesopotamia and Syria and the country's path walked by the trade caravans and military campaigns
Morphological variation in helminthes parasites is a well- established phenomenon and may have many
sources and important taxonomic implications. The morphological differences between the two isolates of
Echinococcus granulosus were the dimensions of worm total length , number of the developing segment ,
testes distribution , details of the cirrus sac and position of genital pore .The results of present study indicate
that there is a form of the parasite is adapted to donkey and other in camel have some differences in
morphological also biological features not tackled in the present work .Genetic study is required for strain
detection for clarification of the situation in a country .
This study aims to develop a recommendation engine methodology to enhance the model’s effectiveness and efficiency. The proposed model is commonly used to assign or propose a limited number of developers with the required skills and expertise to address and resolve a bug report. Managing collections within bug repositories is the responsibility of software engineers in addressing specific defects. Identifying the optimal allocation of personnel to activities is challenging when dealing with software defects, which necessitates a substantial workforce of developers. Analyzing new scientific methodologies to enhance comprehension of the results is the purpose of this analysis. Additionally, developer priorities were discussed, especially th
... Show MoreThe issue of the Circular Economy is not a new issue to several countries, especially the developed ones. Here in Iraq it is considered newly introduced, despite the few attempts to establish projects that concern recycling most of them were doomed to fail, due to two main reasons: the first one is the financial and administrative corruption widespread in all departments of the country, the second one is the priorities of public spending. It is well known that Iraq was subjected to two major attacks, the ISIS entry attack in 2014 to Iraq. ISIS occupied about a third of Iraqi lands which resulted in a collapse in oil prices, as Iraq depends almost entirely on oil revenues in its budget which is the second attack. This made the Iraqi governme
... Show MoreThis contribution aims to investigate volume-dependent thermal and mechanical properties of the two most studied phases of molybdenum nitride (c-MoN and h-MoN) by means of the quasi-harmonic approximation approach (QHA) via first-principles calculations up to their melting point and a pressure of 12 GPa. Lattice constants, band gaps, and bulk modulus at 0 K match corresponding experimental measurements well. Calculated Bader’s charges indicate that Mo–N bonds exhibit a more ionic nature in the cubic MoN phase. Based on estimated Gibbs free energies, the cubic phase presents thermodynamic stability higher than that detected for hexagonl, with no phase transition observed in the selected T–P conditions as detected experimentall
... Show MoreWellbore instability is one of the major issues observed throughout the drilling operation. Various wellbore instability issues may occur during drilling operations, including tight holes, borehole collapse, stuck pipe, and shale caving. Rock failure criteria are important in geomechanical analysis since they predict shear and tensile failures. A suitable failure criterion must match the rock failure, which a caliper log can detect to estimate the optimal mud weight. Lack of data makes certain wells' caliper logs unavailable. This makes it difficult to validate the performance of each failure criterion. This paper proposes an approach for predicting the breakout zones in the Nasiriyah oil field using an artificial neural network. It
... Show MoreBackground. “Polyetheretherketone (PEEK)” is a biocompatible, high-strength polymer that is well-suited for use in dental applications due to its unique properties. However, achieving good adhesion between PEEK and hydrophilic materials such as dental adhesives or cement can be challenging. Also, this hydrophobicity may affect the use of PEEK as an implant material. Surface treatment or conditioning is often necessary to improve surface properties. The piranha solution is the treatment of choice to be explored for this purpose. Methods. PEEK disks of 10 mm diameter and 2 mm thickness were used in this study. Those samples were divided into five groups (each group has five samples). The first is the control group, in which no
... Show MoreThe present paper studies the generalized Φ- recurrent of Kenmotsu type manifolds. This is done to determine the components of the covariant derivative of the Riemannian curvature tensor. Moreover, the conditions which make Kenmotsu type manifolds to be locally symmetric or generalized Φ- recurrent have been established. It is also concluded that the locally symmetric of Kenmotsu type manifolds are generalized recurrent under suitable condition and vice versa. Furthermore, the study establishes the relationship between the Einstein manifolds and locally symmetric of Kenmotsu type manifolds.
Thermal energy storage is an important component in energy units to decrease the gap between energy supply and demand. Free convection and the locations of the tubes carrying the heat-transfer fluid (HTF) have a significant influence on both the energy discharging potential and the buoyancy effect during the solidification mode. In the present study, the impact of the tube position was examined during the discharging process. Liquid-fraction evolution and energy removal rate with thermo-fluid contour profiles were used to examine the performance of the unit. Heat exchanger tubes are proposed with different numbers and positions in the unit for various cases including uniform and non-uniform tubes distribution. The results show that
... Show More134 samples of plants and animals wastes were taken from three different regions outside Baghdad and three different regions in Baghdad. 24 cellulolytic isolates fungi AO, C1, TH1, AN1, R1, TV, PG, AF, B1, L1, AP, TH, AP1, AN3, AO2, A, A1, C, F, AO1, C2, F1, CL and AP2 independent were chosen out of 48 selected fungi. The best optimal conditions for growth were 30ºC and pH 7. The isolates were identified and screened according to the colony diameter, biomass and density of spores in addition of capability to produce the hydrolytic enzymes for cellulose.
The current research aimed to investigate the psychometric characteristics of the Arabic version of the Nomophobia scale for the Omani youth. The scale was administered to a random sample of students from public and private universities and colleges in Oman. The research sample consisted of 2507 students, of whom 868 males and 1639 females. The validity of the measure was first checked by presenting the scale to a group of experts in this field. Then the exploratory and confirmatory factor analysis was carried out. The exploratory factor analysis revealed the existence of three main factors: the fear of connectivity loss, the fear of communication loss with others, and the fear of network outages. These factors accounted for 65.6% of the
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