The objective of this paper was to study the laser spot welding process of low carbon steel sheet. The investigations were based on analytical and finite element analyses. The analytical analysis was focused on a consistent set of equations representing interaction of the laser beam with materials. The numerical analysis based on 3-D finite element analysis of heat flow during laser spot welding taken into account the temperature dependence of the physical properties and latent heat of transformations using ANSYS code V.10.0 to simulate the laser welding process. The effect of laser operating parameters on the results of the temperature profile were studied in addition to the effect on thermal stresses  and dimensions of the laser w

     In this work the corrosion behavior of Ti-6Al-4V alloy was studied by using galvanostatic measurements at room temperature in different media which includ sodium chloride (food salt), sodium tartrate (presence in jellies, margarine, and sausage casings,etc.), sodium oxalate (presence in fruits, vegetables,etc.), acetic acid (presence in vinegar), phosphoric acid (presence in drink), sodium carbonate (presence in 7up drink,etc.), and sodium hydroxide in order to compare.

     Corrosion parameters were interpreted in th

This research aims to know the impact of leadership integrity as explanatory variable including its dimensions (courage, asceticism, justice, rationality, and humanity) on organizational conflict as responding variable. This research depended on the descriptive-constructive approach through the responses of a sample of (79) employees from (Real Estate Office of The State) in Al-Najaf province. The analyzing of the study done by using (Smart PLS) program to calculate (R^2, t, p). Many results have been concluded and one of them, there is significant impact correlation of the leadership integrity on organizational conflict. There are many suggestions have been reached depending on the results reached and one of them is the necess

Aim: To evaluate the effect of ultrasonic agitation for retrograde biodceramic root repair, MTA and biodentine filling materials on push-out bond strength to dentine walls. Materials and Methods: Ninety extracted human teeth with single straight roots were selected randomly. After disinfection and cleaning, the coronal portions were sectioned to standardize the root canal length at 15mm. following root canal shaping, obturation and apical roots resection, retrograde cavities were prepared. Teeth were categorized depending on the filling material used into three groups, 30 teeth each. Group A filled with bioceramic root repair material, B with MTA and C with Biodentine material. These groups were divided in to three subgroup (n= 10). Subgrou

Objectives: This study aimed to evaluate and compare the effect of plasma treatment versus conventional treatment on the micro shear bond strength (μSBS), surface roughness, and wettability of three different CAD/CAM materials. Materials and methods: Sixty cylindrical specimens (5 mm diameter ×3 mm height) were prepared from three different CAD/CAM materials: Group A: Zirconia, Group B: Lithium disilicate, and Group C: Resin nano-ceramic. Each group was subdivided into two subgroups according to surface treatment used: Subgroup I: Conventional treatment, zirconia was sandblasted with Al2O3, while lithium disilicate and resin nano-ceramic were etched with hydrofluoric acid. Subgroup II: Plasma treatment, the surface of each material was tr

The placenta is an organ between the mother and fetus necessary for fetal growth and development. Gestational diabetes mellitus (DM) is the most frequent metabolic condition detected during pregnancy. It is characterized as hyperglycemia of various severity with onset or first detection during pregnancy that does not clearly describe any form of preexisting diabetes. Urotensin II (UII), a pluripotent vasoactive peptide, is important in developing insulin resistance. This study aimed to determine the level of Urotensin II(UII) in placenta and in the serum of diabetic and nondiabetic women. Methods The blood and placenta tissue collected from 50 ladies had been enrolled in this research ( 25 females with uncomplicated), (25 women with gestati

Domestic Technique in Batik Art

Cinema has always addressed human issues from diverse perspectives. It covered biographies, philosophy, history, war, and sci-fi. These disciplines promote economic and artistic success. Since the 1930s, cinema has explored sexual transformation. These films have defended homosexuals, explored how homosexuality causes AIDS, and discussed transgenderism for decades. As widely recognised, animated films for adults and children worldwide have included this trend. This study will demonstrate how hormone imbalance affects sexual function. This study, "Promoting Physiological Transformations in Cinema," comprises four chapters: The first chapter (methodological framework) covers the study problem, "What are the foundations and necessities of p

The subject of divine attributes is one of the most important Islamic tenets, which must be
To stand up to its accuracy and multiplicity unlike the difference of speech, which led the teams to disbelieve
The other, when they were engaged in the issue of divine attributes, but they are agreed and assembled on
That God is one in himself and his qualities and actions. It is not similar to Himself and does not have two qualities of sex
One . It has no similar or real similarity between its qualities and the qualities of the creatures, as well as the acts of God
God is one in His actions and does not share it with anyone, and they have based their consensus on belief
In the unity of God and the unification of Raboubiya and t

Terrorism is an old phenomenon, but awareness of its seriousness talk of where to stretch the impact of the terrorist crime and the magnitude of the results as well as the community's awareness of the newly therefore appeared studies and special laws to deal with this phenomenon, especially that this phenomenon has increased the time being to enter an organization where the scientific methods and modern techniques that cause destruction and horror of mass.That the term terrorism in the modern era did not materialize and actually only in 1793 and that was when he declared Robespierre (Robespierre) the beginning of the reign of terror or Alrhb (Reign of terror) which lasted in France from March 10 1973_27 July 1794 where it was the execution