Multi-point forming (MPF) is an advanced flexible manufacture technology, and the technology results from the idea that the whole die is separated into small punches that can be adjusted height. This idea is applied to the traditional rigid blank-holder, so flexible blank-holder (FBH) idea can be obtained. In this work, the performance of a multi-point die is investigated with pins in square matrix and suitable blank holder. Each pin in the punch holder can be a significant moved according to the die high and at different load that applied with spring with respect to spring stiffness. The results shows the reduction in setting time with respect to traditional single point incremental forming process that lead to (90%). and also show duri

To observe the effect of media of the internal pressure on the equivalent stress distribution in the tube, an experimental study is done by constructing a testing rig to apply the hydraulic pressure and three dies are manufactured with different bulging configurations (square, cosine, and conical). In the other part, ANSYS APDL is generated to analyze the bulging process with hydraulic and rubber (natural and industrial) media. It was found that when the media is a rubber, the stress is decreased about 9.068% in case of cosine die and 5.4439% in case of conical die and 2.8544% in case of square die. So, it can be concluded that the internal pressure in the rubber media is much better than in hydraulic media. Also, the force needed for fo

Abstract

Knowing the amount of residual stresses and find technological solutions to minimize and control them during the production operation are an important task because great levels of deformation which occurs in single point incremental forming (SPIF), this induce highly non-uniform residual stresses. In this papera propose of a method for multilayer single point incremental forming with change in thickness of the top plate (0.5, 0.7, 0.9) mm and lubrication or material between two plates(polymer, grease, grease with graphite, mos₂) to knowing an effect of this method  and parameters on residual stresses for the bottom plates. Also compare these results for the

Background: Colostomy minimizes the risk of leakage at expense of requiring a second operation. In Iraq, published on colostomy closure in penetrating abdominal wall injuries is scarce.

Objective: to Study the prognosis of colostomy closure in post-conflict patients in Iraq.

Method: This is a retrospective study of 52 patients subjected to colostomy closure, recruited for the period 2008 to 2009

Background: Colostomy minimizes the risk of leakage at expense of requiring a second operation. In Iraq, published on colostomy closure in penetrating abdominal wall injuries is scarce.

Objective: to Study the prognosis of colostomy closure in post-conflict patients in Iraq.

Method: This is a retrospective study of 52 patients subjected to colostomy closure, recruited for the period 2008 to 2009 from Al-Yarmouk Teaching Hospital and Children Central Teaching Hospital. Demographic data and information about colostomy (type, methods of preparation … etc.) were studied.

Results: Trauma was noticed in 57.7% patients. Transverse colon was the commone

Exercising the universal jurisdiction requires having in place some national legislations. If the legal principle is generally agreed upon at the international level, this does not prevent nations from passing some internal or local legislations that may enable the national courts to enforce the universal jurisdiction.  Transcending the philosophical and theoretical frameworks of any principle will

      This paper, entitled “The Conditions of Exercising Universal Jurisdiction: A Comparative Study”, tackles the conditions and requirements of exercising universal jurisdiction in both subjective and objective aspects, in the Iraqi penal code and the international laws under comparison.

Pulsed liquid laser ablation is considered a green method for the synthesis of nanostructures because there are no byproducts formed after the ablation. In this paper, a fiber laser of wavelength 1.064 µm, peak power of 1 mJ, pulse duration of 120 ns, and repetition rate of 20 kHz, was used to produce carbon nanostructures including carbon nanospheres and carbon nanorods from the ablation of asphalt in ethanol at ablation speeds of (100, 75, 50, 10 mm/s).  The morphology, composition and optical properties of the synthesized samples were studied experimentally using FESEM, HRTEM, EDS, and UV-vis spectrophotometer. Results showed that the band gap energy decreased with decreasing the ablation speed (increasing the ablation time), the mi

Incremental Sheet Metal Forming (ISMF) is a modern sheet metal forming technology which offers the possibility of manufacturing 3D complex parts of thin sheet metals using the CNC milling machine. The surface quality is a very important aspect in any manufacturing process. Therefore, this study focuses on the resultant residual stresses by forming parameters, namely; (tool shape, step over, feed rate, and slope angle) using Taguchi method for the products formed by single point incremental forming process (SPIF). For evaluating the surface quality, practical experiments to produce pyramid like shape have been implemented on aluminum sheets (AA1050) for thickness (0.9) mm. Three types of tool shape used in this work, the spherical tool ga

Background: Closure colostomy is a common procedure in the pediatric surgical practice, considered a major one because it involves anastomosis of the large bowel, and requires strict bowel preparation and prophylactic antibiotics. It’s the last event in the management of some pediatric surgical conditions, as Hirschsprung’s disease and anorectal malformations.
Objectives: To evaluate the complications of colostomy closure in pediatric patients.
Patients and methods: A total of 106 patients underwent colostomy closure were enrolled in this prospective study conducted in Welfare Teaching Hospital in Medical City Complex, from October 2015 to January 2017, were reviewed looking fo

Abstract

The open budget means everyone in the society can get information about the government budget in order to watch the governmental works. The aim of the research is to study the concepts of open budget, its advantage, limitations, role of supporting the transparency and questioning the administrative and financial corruption. Thus reflects positively on the national economy by providing governmental information to all users whether they are individuals or belong to the political class, or any other governmental or nongovernmental organizations which are interested in these information.

In order to achieve the objectives of the research aims, we make questionnaire to see aca