Volume 27 Issue 1
Published: 2025-06-25
Contents
Review Paper
Strengthening and Rehabilitating Structural Members by Carbon Fiber Reinforced Polymers (A Review)
Islam Abdullah Aziz, Khalaf Ibrahem Mohammed,
The use of Carbon Fiber Reinforced Polymers CFRP in strengthening and rehabilitating structural members is one of the modern techniques which proved to be effective in different civil engineering...
DOI: 10.33899/rengj.2021.130633.1117
Experimental Study of Scour Downstream Piano Key Weir Type C with Changing Height of Weir Width of Keys and Apron Solid
Arwa Abdul-razaaq Jamal, Khalid Ysseen Tahaa, Ghania Abd Al-Majeed Hayawi,
To find out mechanism scour downstream weirs and study effect changing ratio width of keys Wi/Wo , length of Apron solid and studying effect of changing the lateral length B on depth and length of...
DOI: 10.33899/rengj.2021.130402.1101
Functional Durability in Local Schools Proximiti’s Characteristic Affecting the Spatial Compactness of Primary School Buildings
Muthanna A. Mahmood, Asma Hasan Hasan Al-dabbagh,
The physical environment of schools is an important factor affecting students' learning. Appropriate educational institutions must be provided. It meets the various reasons for change, and the...
DOI: 10.33899/rengj.2021.130823.1126
Review on the Thermal Characterizations of Rotary Friction Welding
Faris Ibrahim Salih, Amir Sultan Dawood, Abdulhaqq A. Hamid,
Rotary friction welding is a solid-state technique for combining two materials together by using the heat energy generated by the friction at the interface region between them with help of an...
DOI: 10.33899/rengj.2021.132049.1141
Research Paper
Evaluation of the Methods Used to Calculate the Structural Damage Index for Reinforced Concrete Structures Exposed to Various Earthquakes
Ragheed Najeeb Abdullah Al-Dabbagh, Sofyan Yonis Ahmed Kashmola,
This study deals with the structural evaluation and compression is made between the methods of calculating the damage index of a two-dimensional reinforced concrete structure. A three bay, ten...
DOI: 10.33899/rengj.2021.130377.1099
Design and Implementation of Model Predictive Controller
Hiba Abdulkareem Saleh, Thakwan Mohammed Salim,
The precise position control of a DC servo motor is a major concern in today's control theory. This work presents position following and forecast of DC servo engine utilizing an alternate control...
DOI: 10.33899/rengj.2022.130477.1108
Numerical and Physical Modelling to Dissipate the Flow Energy of Spillway Using Multiple Rows of Chute Blocks
Mena Ahmed Alsawaf, Mohamed Saad Alhmdany, Zeyad Ayoob Sulaiman,
Physical and Numerical models have been used to maximize the dissipation of flow energy of a sipllway, and to guarantee the occurring of hydraulic jump in the stilling basin in shorter length, and...
DOI: 10.33899/rengj.2021.130576.1112
Effect of Catch Cans Size and Can Spacing on Calculation of Uniformity Water Distribution for Grid Sprinkler Systems
Haqqi Ismail Yasin, Ahmed Hazim Alkhaffaf,
The research included studying the effect of each of the size of catch cans and the spacing between them on the calculation of water distribution uniformity coefficient and with different spacing...
DOI: 10.33899/rengj.2021.130619.1116
Modeling of Wetting Pattern Under a Linear Drip Source Buried in Layered Soil
Muna Abdulkareem Aljbouri, Younis Mohammed Hassan, Ahmed Ali Al-Ogaidi,
This study aims to model the wetting patterns of the homogeneous and stratified soil profile, and to derive an equation to estimate the discharge rate during the application time. The study...
DOI: 10.33899/rengj.2021.130677.1119
The Effect of Intermittent Addition on the Wetness Pattern of Subsurface Drip Irrigation
Ahmed A. khudher, Dr. Younis Mohamed Hassan,
The current study included 12 laboratory experiments on a soil model stacked inside a container with a metal structure with two transparent faces, in order to monitor the movement of the wetness...
DOI: 10.33899/rengj.2021.130853.1123
Analysis of the Performance of Artificial Intelligence Algorithms in Dynamic Security Assessment
Qutaiba S. Al-hamdany, Saraa E. Khaleel, Muhammed Ali Alrawi,
Electrical power systems around the world are currently operating near the limits of security and stability design, due to economic considerations and high rates of demand for electrical...
DOI: 10.33899/rengj.2021.130955.1124
The Effect of the Spur Dikes at the Entrance to the Curved Channel on the Morphology of the Bed
Ahmed Shareef Hayder, Mwafaq Younes Mohammed,
The meander rivers are notice condition in nature more the existing river in nature. In which the river continues process in scour and deposition sediment transport normally the scour in the outer...
DOI: 10.33899/rengj.2021.131080.1127
The Effect of the Permeable and Impermeable Spur Dikes on the Morphology of the Bed
Mwafaq Younes Mhammad, Ahmed Shareef Hayder,
Flow becomes more complicated in meandering and natural channel which leads the researchers to focus on the observations of natural and laboratory channels to study the characteristics and...
DOI: 10.33899/rengj.2021.131198.1128
The Use of Solar Water Heaters in Iraq An Economic Study
Majid S. M. Al-Hafidh, Wael Hashem Hamdon, Mahmoud U. Jasim,
The Iraqi electrical system suffers from an increased electrical load for the available generation, which leads to the separation of a large number of consumers, especially during the peak load...
DOI: 10.33899/rengj.2021.131217.1129
Insertion of High Frequency Solid State Transformer to Electric Power System And Analysis of its performance
Haitham A. Obaid, Yasir M. Y. Ameen,
The spread of distributed power stations, especially small power stations that use renewable energy sources, as well as the connection of a large number of distributed power stations to the network...
DOI: 10.33899/rengj.2022.131459.1131
Effects of Key Processing Parameters of Continuous Drive Rotary Friction Welding on Thermal Characteristics of Similar and Dissimilar Joints
Faris Ibrahim Salih, Amir Sultan Dawood, Abdulhaqq A. Hamid,
In this research study, numerical modeling was present to describe the effect of key processing parameters of continuous drive rotary friction welding (CDRFW) on thermal characteristics of similar...
DOI: 10.33899/rengj.2021.131911.1136
A Transmission Zero Position Control for 28 GHz Rectangular Waveguide Cavity Bandpass Filter
Saad Wasmi Osman Luhaib, Amjad Hussein Yousif Al lowaizi,
This paper presents a method to control on single real-frequency transmission zeros (TZs) position in the reject band for third-order waveguide band pass filter (BPF). The external couplings are...
DOI: 10.33899/rengj.2022.132009.1140
Role of Void Orientation and Shape on The Electric Field Distortion in High Voltage Cable
Raweya Moayed Tawfiq, Dawood Najem Saleh,
One of the problems that face the use of XLPE insulators is the appearance of defects. These defects appear during the manufacturing processes of the insulator, and one of these defects is air...
DOI: 10.33899/rengj.2022.132192.1142
Design and Thermal Evaluation of Hybrid Split Solar Air Conditioner in Mosul/Iraq
Omar Mohammad Hamdoon, Mahmoud F. Mohammed,
In this paper, we conducted an experimental study to study the improvement of the coefficient of performance of a hybrid solar air conditioner and compare it with the performance of a conventional...
DOI: 10.33899/rengj.2022.132212.1143
Infiltration Characteristics under Intermittent Ponding
Haqqi I. Yasin, Mohammad Tariq Mahmood altaiee, Younis M. Hassan,
The research aims to study the characteristics of each of the infiltration depth, wetting front depth and the initial moisture of the soil in the case intermittent ponding depths using successive...
DOI: 10.33899/rengj.2022.132303.1144
A Comparative Study of Microstructure, Mechanical and Tribology Properties of Cast in-situ Particulate: Al(Mg,Mn)-Al2O3(MnO2) and Al(Mg,Ti)-Al2O3(TiO2) Composites
Abdulhaqq A. Hamid, S. C. Jain, P. K. Ghosh, Subrata Ray
In-situ composites are a class of composite materials in which the reinforcing phases (such as Al2O3, TiB2,TiC, etc.) are generated within the matrix material by some chemical reaction during the...
DOI: 10.33899/rengj.2022.132662.1152
Electrical Power System Harmonics Elimination Using ETAP
Safa ahmed Younis, Omar Muwafaq Mahmood,
Because of the fast advancement in the creation of power electronics equipment such as automatic Machines, adjustable speed drives, personal computers and other non-linear loads which are the main...
DOI: 10.33899/rengj.2022.132721.1155
Electrical Power System Harmonics Analysis Using ETAP
Safa ahmed Younis, Omar Muwafaq Mahmood,
Power generation is normally produced at constant frequencies of 50 Hz or 60 Hz and the generators E.M.F can be considered practically sinusoidal. However, when a source of sinusoidal voltage is...
DOI: 10.33899/rengj.2022.132717.1154
