Research Title: Extending the service life of oil pumps by detonation coating

Author: Muhammad Mustafa Gogazeh, Published Year: 2013

Australian journal of basic and applied science, 8(4)

Faculty: Engineering and Technology

Abstract: Long life of the equipments for oil extraction has big importance in the national economy. This equipment breaks down due to wear and tear. The method of detonation precipitation has an important place among different methods of thermal spraying which allow to get high density gas coating and high strength of tenacity with basic metal. For precipitate the coating we use standard powder of Al2O3 have grains size 20-36 µm and mechanical mixture of: Al2O3 +3% Cr2O3 and Al2O3 + 3% TiO2. Analyze of Tested samples , shows that on the active surface of detonation coating which consist of big single grains , which have low porosity , there is no cavitation breakdown in the first hour of experiment. Whereas explosion bubbles don’t cause cracks, extractions, and holes. With passing of time a micro deformations is appeared on the coating surface in the holes and micro curves and explosion bubbles places. And this micro deformations with continues of current flow, causes micro cracks, which increases and cause breakdown of coating between molecules and grains and extract grains from the coating and moved it away of cavitation area

Keywords: oil pump , life , detonation , pump service , wear , pump coating

Research Title: Static And Dynamic Analysis Of Bevel Gear Set

Author: Muhammad Mustafa Gogazeh, Published Year: 2017

IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE, IOSR Journal of Mech

Faculty: Engineering and Technology

Abstract: Abstract: This paper presents a static and dynamic simulation and analysis of the bevel gear set using Solidworks software, stress, strain, deformation, reactions and torque are calculated. Dimensions and materials of the bevel gears are important factors in determining the values of stress, strain, and displacement. The change in angular velocity and torque applied also change the values of stress, strain, and displacement of the bevel gear. Keywords: Bevel gears, static, dynamic, stress, strain, deformation, solidworks.

Keywords: Keywords: Bevel gears, static, dynamic, stress, strain, deformation, solidworks

Research Title: Characteristics and Analysis for Mechanical Instrumentation Used to Measure Fluid Viscosity

Author: Muhammad Mustafa Gogazeh, Published Year: 2016

International Journal of Innovative Science and Modern Engineering (IJISME, International Journa

Faculty: Engineering and Technology

Abstract: Abstract: The task of development of the measurement procedure and the general-purpose control equipment which can allow us to analyze fluid rheological properties and to ascertain the dependence of the stress tensor of the sample on the deformation tensor over a wide range of strain rates is urgent nowadays. At the same time the question of providing the continuous inspection of the product properties under the condition of high precision and measuring automation

Keywords: mechanical instrument , measurement , fluid viscosity

Research Title: Mechanical Characteristic of concentric and Eccentric Drilling Cutting Tool

Author: Muhammad Mustafa Gogazeh, Published Year: 2016

International Journal of Applied Engineering Research ISSN 0973-4562 Volume 10, Number 15 (2015) pp 36099-36105, International Journa

Faculty: Engineering and Technology

Abstract: In this paper cutting movement of the tilted planetary drilling is investigated For instance, the orbital drilling strategy might be acknowledged as one of these arrangements. In any case, this system cannot abstain from machining with focus of cutting device and obliges high establishment cost The main limitation of this method is the large difference between the diameter of the created hole and the diameter of the tool. In the paper geometrical improvement of the tool, spherical end tool has been successfully employed to facilitate electrolyte flow in the machining zone

Keywords: Key words: concentric,eccentric, Drilling Phase, electrolyte circulation.

Research Title: Examining the Relationship between Accounting Performance and Business Re-engineering in Insurance Companies Listed on the Amman Stock Exchange

Author: Mahmoud Ahmad Al-Sohaimat, Published Year: 2017

    International Journal of Applied Business and Economic Research , Vol. 15, No. 24;

Faculty: Business

Abstract: This paper collected primary and secondary data from insurance companies listed on the Amman Stock Exchange in-order to examine the impact of business re-engineering on performance. The primary data was sourced through questionnaires, exploratory field visits, as well as interview with managements of relevant companies. The limitation of this work is that it utilized the non-parametric analysis due to the sample size. Its main findings are that the re-engineering of company operations lead to the strengthening of the competitive position, increase in the marketing share, increase production, efficiency, and cost reduction.

Keywords: Business Process, Business Process Re-engineering (BPR), Company Performance, Information Technology and Evaluation Process.

Research Title: The Relationship between Adoption of Fair Value Accounting Standards and Changes in Stock Prices (An Empirical Study on Amman Stock Exchange)

Author: Mahmoud Ahmad Al-Sohaimat, Published Year: 2016

Research Journal of Finance and Accounting,, Vol 7, No 12,2016

Faculty: Business

Abstract: The study aimed to determine the relationship between the application of fair value accounting standards and changes in stock prices, and researcher seeks to obtain evidence through application on one of the emerging financial markets, where the sample was taken from the banks listed on a stock exchange emerging which is Amman stock exchange ASE, The explanatory power for application of fair value changes in stock prices Accounting Standards have been measure through designing model for this purpose, the research concluded to accept the alternative hypothesis for research, which says: The existence of the explanatory power for fair value changes is related to Changes in stock prices.

Keywords: fair value, markets efficiency, financial instruments, comprehensive income

Research Title: The Relationship between Accounting Information Systems and Making Investment Decisions in the Industrial Companies Listed in the Saudi Stock Market

Author: Mahmoud Ahmad Al-Sohaimat, Published Year: 2017

  International Business Research, Published by Canadian Center of Science and Education, Vol. 10, No. 6;

Faculty: Business

Abstract: The study aimed to measure the relationship between the investment decision-making in the industrial companies listed in the Saudi Stock Market with the (IVs) characteristics of the accounting information systems (appropriateness and reliability, comparability and understanding), and renovation and maintenance of the hardware and software. The problem in the Kingdom of Saudi Arabia is that the government depends on oil revenues more than on attracting investments, therefore, the importance of this study is constituted by the provision of critical recommendations to policy makers in the Kingdom of Saudi Arabia in order to overcome this issue and improve the investments. In order to achieve the objectives of this study, questionnaires were administered to 194 people representing the study population; a multiple regression (standard regression) was also used to test the study hypotheses. In general, all variables were positively significantly related with the investment decision-making

Keywords: accounting information systems, investment decision-making, capital markets

Research Title: ISENTROPIC SOUND PROPAGATION ANALYSIS AND OPTIMIZATION OVER FLAT PLATE OF SATURATED POROUS MEDIA WITH VARIABLE PERMEABILITY

Author: Laith Batarseh, Published Year: 2014

Faculty: Engineering and Technology

Abstract: The problem of sound propagation over flat plate of porous media was investigated with both stationary and movable flow conditions with a simple geometrical interfere where the permeability is assumed to be exponentially decaying in the normal direction = e−η K Ko and the thickness is optimized according to the maximum attenuation. It is found that the main parameters that affect the propagation process are:- porosity; ε, static permeability; Ko and the steady flow Mach number; M . In addition, it is found that the new interfere of the permeability can improve the attenuation of sound wave when it is combined with the porosity and steady flow parameters beside the minimum required thickness. Also, the minimum required thickness depends on static permeability, porosity and flow state.

Keywords: porous media, sound, isentropic

Research Title: IMPACT OF ECCENTRICITY ON HEAT TRANSFER IN AN ANNULAR SQUARE FILLED WITH SATURATED POROUS MEDIUM

Author: Laith Batarseh, Published Year: 2017

Faculty: Engineering and Technology

Abstract: In this work, the eccentricity effect on heat transfer in an annular square filled with a saturated porous medium was investigated. A numerical solution based on the Galerkin finite element was found for three different cases: (1) positive and negative diagonal eccentricity, (2) positive and negative horizontal eccentricity ±ex, and (3) positive and negative vertical eccentricity. In this study, the outer walls of the annuli were kept isothermally at hot temperature, while the inner walls were kept isothermally at cold temperature. The analysis is carried out to find the influence of eccentricity for three selected nondimensional values (±0.1, ±0.5, ±0.9) on two selected Rayleigh numbers of 100 and 200, without and with the effect of radiation equal to 0 and 1 and for different width ratios (0.25, 0.5, 0.75), respectively. Numerical results of fluid flow and heat transfer characteristics inside the porous medium for the three cases considered were presented and discussed. Furthermore, the results of the average Nusselt number of each outer wall show an increase as eccentricity increases, in particular, at higher values of width ratios ≥0.75.

Keywords: annular square, porous medium, heat transfer, Nusselt number, Rayleigh number

Research Title: three dimensional stress strain analysis of a typical gas turbine blade using finite element method

Author: Muhammad Mustafa Gogazeh, Published Year: 2018

Faculty: Engineering and Technology

Abstract: Energy is extracted in gas turbine systems by expanding working fluids (hot gases) through several rings passages of fixed stator (blades) and moving rotor blades. Blades should have maximum reliability, durability, maximum yield strength and minimum material cost. The objective of this work is to analyze three dimensional stress-strain field equations on a three dimensional axial flow turbine blade using two types high speed steel –HSS- (iron base super alloys) and titanium alloys (Ti-6Al-2Sn.). An attempt has been made to compute stresses and displacements of a typical rotor blade of gas turbine system and comparing the obtained results with an available data. The analysis also involves derivation of three dimensional stress-strain equations, including body, forces. Attention was focused on analyzing stress-strain field on the upper, lower blade surfaces, and on the chord line of the turbine blade. The discretized (meshed ) model of the blade is generated using solidworks package, and the generated equations are solved by customized software. Steady state stress-strain analysis is assumed to understand the generalized behavior of blade forces from root to tip using finite element method. The results show that complexity of the stress-strain field over turbine blade. Result show that Ti6Al4V is better than HSS in most of application cases.element techniques and software to analyse strain and stress of a typical gas turbine blade

Keywords: finite element , gas turbine blade , stress , strain