Volume 15 (2022)
Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2012)
Volume 4 (2011)
Volume 3 (2010)
Volume 2 (2009)
Volume 1 (2008)


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Al-Qadisiyah Journal for Engineering Sciences (QJES), E-ISSN: (2411-7773) ,  P-ISSN: (1998-4456), was established in 2008. The Journal, in its current form, is intended to contribute to the state of the art in all fields of engineering research. The Journal is a peer-reviewed journal and is published by The University of Al-Qadisiyah , the college of Engineering, . The journal is now published Quarterly (March, June, September and December).
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A GWO-PID controller with advanced optimization features for DC-DC converters

Muhanad D. Hashim Almawlawe; Hassan H. Naji; Al-Sharify Mushtaq Talib; Wali H. Wali

Volume 16, Issue 4 , December 2023, Pages 228-232


  This work seeks to use both traditional control algorithms and advanced optimization algorithms to enhance the performance of a DC-DC converter. The chosen algorithm was Proportional-Integral-Derivative (PID) based on gray wolf optimization (GWO). The PID controller is known for its ease of control and ...  Read More

The impact of IMS mobility management with google mobile phone on quality of experience

Nadia Awad; Musa H. Wali

Volume 16, Issue 4 , December 2023, Pages 233-238


  The widespread of a Wireless Local Area Network (WLAN) access network in residential areas provides low-cost and high-speed access to the Third-Generation Partnership Project (3GPP) services for end users. This has virtually made WLAN to be a complementary access network to Universal Mobile Telecommunications ...  Read More

Develop A new mathematical approach to predict the crack propagation rate in a thin plate subjected to in-plane biaxial loading

Israa Abed Al.Razak Mosleh; Fathi Alshamma

Volume 16, Issue 4 , December 2023, Pages 239-246


  The mechanical design of metals must deal with structures collapsing due to cracks occur in the material. This study focused on the edge crack at non-proportional cycle loading because it propagates quickly. This research attempted to determine two mathematical models that could predict the crack propagation ...  Read More

Experimental study on refrigerant mixing as a drop-in substitute for R134a in a domestic refrigerator

Mohammed F. Mohammed; Maathe A. Theeb

Volume 16, Issue 4 , December 2023, Pages 247-252


  This research aims to find ways to use different mixtures instead of R134a refrigerants that are more efficient and better for the environment. The Kyoto Protocol states that hydrofluorocarbon refrigerants must be replaced due to their high Global Warming Potential values, contributing to environmental ...  Read More

Assessing the effectiveness of low-cost materials to act as filter media for phosphate sorption

Ali T Alzeyadi; Nadhir Abbas Al-Ansari; Ali Al-Attabi; Muhanad Mosa

Volume 16, Issue 4 , December 2023, Pages 253-258


  In this research, an assessment was conducted for several materials to examine their efficiency for sorption phosphate and their potential use as filter media. This work focuses on seeking materials that can achieve high, rapid, and robust phosphate retention. To assess the phosphate removal efficiency, ...  Read More

Functional Performance of Octagonal Plan Mosques-Analysis of Octagonal Plan Mosques in Mosul

Ali Faris Younis; Hassan Mahmood Kasim

Volume 16, Issue 4 , December 2023, Pages 259-267


  The identity of Islamic cities is distinctly manifested through their congregational mosques, primarily characterized by their continuous and stable function, epitomized by the five daily congregational prayers. The performance of a mosque is intricately linked to a set of religious, organizational, ...  Read More

The assessment of using fiber produced from plastic broom bristles on the impact property of normal-weight concrete slabs

Zayd A. Abdullah Al-Obaidi

Volume 16, Issue 4 , December 2023, Pages 268-272


  The importance of plastic has emerged in many modern industries, and petroleum is an essential source for the manufacture of many materials of importance in our contemporary life, such as plastic bags, paints, brooms that are used for cleaning, and others. This study showed that it is possible to use ...  Read More

Statistical analysis of the vacuum solar collector using the analysis of ‎variance method

Marwa M. Majeed; Basima S. Khalaf; Layla M. Nassir

Volume 16, Issue 4 , December 2023, Pages 273-278


  Space and weight constraints, as well as the time lag between energy generation and consumption, ‎are major obstacles to expanding solar water heating systems into existing structures with limited ‎space. It is possible to collect heat with this small, evacuated tube collector (ETC). It was found ...  Read More

Experimental study of heat transfer using nanofluids in a coiled agitated vessel equipped with impeller propeller

Batool Shandal; H. Dawood; Helen Onyeaka

Volume 16, Issue 4 , December 2023, Pages 279-288


  In this study, the heat transfer enhancement was made by using multiwalled carbon nanotubes (MWCNTs) with distilled water (i.e . nanofluid) in a coiled agitated vessel. The thermal conductivity of the nanofluid at a volume fraction of (0.3 Vol%) was estimated with different parameters (temperature, propeller ...  Read More

Numerical study of effect porous media on heat transfer in a horizontal annular tube

Doaa Rokan Hussien; Muna S. Kassim; Mustafa Fouad Yousif

Volume 16, Issue 4 , December 2023, Pages 289-297


  In the current study, to enhance the characteristics and forced convection performance in the horizontal annular in the case of the presence of porous material and without porous material, energy analyses were performed. Many types of porous material, porosities, and diameters were used. Computational ...  Read More

Corrosion inhibition performance of 2- Fluorophenyl-2, 5-dithiohydrazodicarbonamide for copper in 3.5%NaCl Media: Experimental and Monte Carlo insights

Mothana Ghazi Kadhim AlFalah; Murat Saracoglu; Mehmet Izzettin Yilmazer; Fatma Kandemirli

Volume 16, Issue 3 , September 2023, , Pages 150-159


  Most industries struggle with corrosion. Corrosion inhibitors are needed in these sectors. Eco-friendly corrosion inhibitors should be effective even at low concentrations. In this work, the compound 2- Fluorophenyl-2, 5- dithiohydrazodicarbonamide (2F-TSC) was utilized as a corrosion inhibitor for copper ...  Read More

The column in Arabic Islamic Architecture(Analysis Study for Dimensions and Connotations)

Dr. Mahdi Saleh Alfaraj Al- Ataabi

Volume 7, Issue 2 , June 2014, , Pages 41-72

  The column is considered as a support rooted in the ground and forms the part responsible for connecting the upper and lower level. It is a dialectic duality to provide the space with its required qualities .It is a base to support what lies above it and forms a poetic vision which hypothetically give ...  Read More

Investigation of heat transfer characteristics of Al2O3-water nanofluid in a coiled agitated vessel across varied operating conditions

Uday M. Basheer Al-Naib

Volume 16, Issue 3 , September 2023, , Pages 145-149


  This study aimed to investigate the heat transfer behavior of an Al2O3-water nanofluid within a coil-agitated tank. The experiment utilized Al2O3-water nanofluids with varying volume concentrations, namely 0.2 vol%, 0.3 vol%, and 0.4 vol%. Two different cooling water flow rates, specifically 1.8 and ...  Read More

Blockchain Fog-based scheme for identity authentication in smart building

Alexander A. Varfolomeev; Liwa H. Al-Farhani

Volume 16, Issue 3 , September 2023, , Pages 218-227


  This paper presents a proposal for an authentication scheme for smart building systems and environments based on blockchain, its positive features, and fog computing. The most important feature that can be distinguished in the submitted proposal is its adoption of the principle of decentralization in ...  Read More

Effects of fin on mixed convection heat transfer in a vented square cavity: A numerical study

Mohammed Abu Ghurban; Khaled Al-Farhany; Kada Benhanifia

Volume 16, Issue 3 , September 2023, , Pages 200-208


  Numerical investigation of mixed convective in a vented square cavity with fin. The horizontal walls are adiabatic, while the left and right walls are at hot and cold temperatures, respectively. The fluid inlet to the cavity from the lower left open area, and exit from the upper right open area. In this ...  Read More

Using the golden ratio in detecting the aesthetics of Mosque facades: The case of contemporary Mosques in Erbil city

Saya Jamal Rashid; Faris Ali Mustafa; Faten Radhwan Yaseen

Articles in Press, Accepted Manuscript, Available Online from 01 March 2024


  From ancient Greece till the present, the golden ratio has been considered one of the most significant criteria of beauty in art and architecture. Architectural forms are part of the visual language that is bound by the rules of geometry and proportion. This study aims to identify the extent to which ...  Read More

Structural Classification of Planetary-Gear-Cam Mechanisms

Farah Mohammed Saoud; Sajad Hussein Abdali; Essam Esmail

Articles in Press, Accepted Manuscript, Available Online from 01 March 2024


  Planetary gear-cam mechanisms (PGCMs) are mechanisms that combine planetary gears and cams. Despite the fact that these systems have the ability to achieve a wide variety of periodic motions of the output link, they have received little attention. To generate and classify PGCMs, structural properties ...  Read More

Suitable landfill site selection for Al-Diwaniyah City using a geographic information system

Mukhalad Muayada; Hussein Jannaa

Articles in Press, Accepted Manuscript, Available Online from 01 March 2024


  One of the main problems in the city of Diwaniyah is finding suitable places for burying waste. Geographic Information System (GIS) is an appropriate tool used for this purpose. The city of Diwaniyah, like other Iraqi governorates, is not equipped with an organized system for burying urban waste. The ...  Read More

Interface Shapes and Flow Behaviour in Duct Systems under Critical and Sub-Critical Flow Conditions

Manar A. Abdulrahman; Suha I. S. Al-Ali; Mohammed Nsaif Abbas

Articles in Press, Accepted Manuscript, Available Online from 01 March 2024


  This article delves into the intricate dynamics of groundwater flow within duct systems, ‎examining both critical and sub-critical flow conditions. Employing mathematical models, ‎sophisticated potential methodologies, numerical simulations, and flow net analysis, the ‎research investigates ...  Read More

Heat transfer augmentation by using different techniques in small scale channels: A review study

Naseer Hamza; Haider A. Abdul kazem

Articles in Press, Accepted Manuscript, Available Online from 30 August 2023


  In this paper highlights the most significant recent developments in scientific study on Heat sinks are thermal management components made of materials with sufficient thermal conductivity qualities. Due to the increase in operating power and speed as well as the general reduction in system size, the ...  Read More

A Graph-Based Method For Detecting Isomorphism of Geared Kinematic Chains Using a Circuit Matrix and Vertex Degree Array.

Sajad Hussein Abdali; Farah Mohammed Saoud; Essam Esmail

Articles in Press, Accepted Manuscript, Available Online from 30 August 2023


  Several approaches for detecting isomorphism in kinematic chains have been developed in recent literature. If two kinematic chains have a 1-1 correspondence and their incidences are maintained, they are isomorphic. In this work, a matrix-based method for identifying isomorphism is presented. The new ...  Read More

A review of modelling and inspection techniques at the micro- and nanoscales of dry friction of rough surfaces

muhammed Abdulhasan Muhammed; Nabeel Shallal Almuramady

Articles in Press, Accepted Manuscript, Available Online from 30 August 2023


  In reality, there are a number of tiny contact asperities on the contact surface, which may be seen at the micro/ nano scales. The total mechanical behavior is the product of all asperities that are involved during the contact. There are still a lot of unresolved issues in the study of contact and dry ...  Read More

A critical review of forced convection in microchannels

Ahmed Ali Shakir Al-Saadi

Articles in Press, Accepted Manuscript, Available Online from 30 August 2023


  The dissipation of excessive heat flux is presently a significant issue that needs to be addressed due to the use of microdevices in fields such as nuclear energy, electronic devices, aerospace engineering, building engineering, and more. Because their increased heat transfer and compact size, microchannel ...  Read More

Criteria and Indicators Affecting the Most Appropriate Reuse of Heritage Buildings in Old Cities: Mosul Old City as a Case Study

Suroor Abdulghafoor Jasim; Emad Hani Ismaeel

Articles in Press, Accepted Manuscript, Available Online from 03 September 2023


  For the protection of historic city identity and providing a sustainable benefit to its buildings,the strategy of conserving heritage buildings in old cities through their reuse is complex and crucial.The most appropriate mechanism for reuse is the most widely used mechanism for preserving and enhancing ...  Read More

Post Occupancy Evaluation of Private Open Spaces in Dwelling Units in Single Family Investment Housing Projects in Erbil City

Shayan Shero Ahmed; Mand Ibrahim Dizayee

Articles in Press, Accepted Manuscript, Available Online from 23 September 2023


  Due to urbanization, it has been found that public open spaces shared in the city is not maintained in many cases, as new investments are trying to get use of the land to construct more buildings, same tendency has been noticed with residential estates. The treatment for the shortages of public open ...  Read More

A review of passive and active techniques for backward-facing step

ghaidaa kareem rahi; Dhafer Abdul Amir Hamzah

Articles in Press, Accepted Manuscript, Available Online from 27 September 2023


  This study reveals the increase in heat transfer using passive and active techniques for BFS. Backward- facing step (BFS) flow is one example of a representative model for separation flows which has been noted in its applications in engine flows, vehicles, condensers, heat transfer systems, and flow ...  Read More

The Knowledge Content of Digital Design Subject in Architecture Schools

Sarraa B. Younis; Dhuha A. Al-kazzaz

Articles in Press, Accepted Manuscript, Available Online from 13 October 2023


  The emergence and spread of digital technology in architectural design and professional practice has resulted in a restructuring of architectural education. Different approaches have emerged to integrate digital design into architectural curricula. This paper aims to identify accredited digital design ...  Read More

Investigation of an Automobile Air-Conditioner with a Liquid-Suction Heat Exchanger Using R134a and R1234yf

Ansam Akeel Mohammed

Articles in Press, Accepted Manuscript, Available Online from 20 October 2023


  Air-conditioning systems (ACs) are essential in hot and humid climates to ensure acceptable ambient air quality as well as thermal comfort for buildings users. It is essential to improve refrigeration system performance without increasing the effects of global warming potential (GWP) and ozone depletion ...  Read More

Thermal Analysis of Integrated Solar Combined Cycle Units With Application to South of Iraq

Rahmah Luqman Ibrahim; Abdulrahman Habbo Mohammed

Articles in Press, Accepted Manuscript, Available Online from 16 November 2023


  Recently, simple cycle play a significant role in electric power production in Iraq. However, those units suffer from low thermal efficiency and low power output. In the present work, theoretical study is carried out aiming to improve the performance of (AL-Amara station 125MW). The present work includes ...  Read More

A study of biodiesel production from waste cooking oil and its impact on diesel exhaust emissions with alcohol blends

ALi sadoon mohmmad

Articles in Press, Accepted Manuscript, Available Online from 29 November 2023


  Fuels based on petroleum have been used for many years. However, as the world strives to protect the environment, clean and renewable energy is becoming more sought after. Diesel fuel can be replaced with biodiesel and alcohol. One of the advantages of these fuels is that they are renewable and locally ...  Read More

Hydrodeoxygenation of Linoleic Acid Using Water as Hydrogen Source on Co/HB Zeolite

Fouz D Alqazweeny

Articles in Press, Accepted Manuscript, Available Online from 02 December 2023


  Hydrodeoxygenation (HDO) is a critical step in upgrading biomass-derived feed-stocks to renewable fuels and valuable chemicals. Thus, we preserve the environment through the use of agricultural waste. Water plays the role of solvent, reactant, or byproduct in biomass HDO reactions catalyzed by Co/HB ...  Read More

NiTa Superalloy Study for Its Importance in Modern Applications: A Review

qasim Abbas shammari

Articles in Press, Accepted Manuscript, Available Online from 09 December 2023


  Stoichiometric (NiTa) superalloys have lately acquired acceptability as an alternative to traditional current-generation alloys for applications requiring biomaterials. This is because to the high melting points and corrosion resistance of Ni and Ta. Nickel-based superalloys are highly prized in particular ...  Read More

Investigation of the effects of hybrid nanofillers on properties of PMMA composites compared to natural nano powder addition

maha kareem; Abbas Khalaf Mohammad

Articles in Press, Accepted Manuscript, Available Online from 09 December 2023


  PMMA (poly methyl methacrylate), a well-known polymer of the methacrylate family, is widely utilized in biomedicine, particularly in odonatological applications like artificial teeth, dentures and denture bases, obturators, provisional or permanent crowns, and so on. The outstanding qualities of PMMA, ...  Read More

Evidence-Based Design: The Role of Outpatient Design Elements on Medical Staff Satisfaction and Performance in a Post-COVID-19 Pandemic

Fouad Jalal Mahmood

Articles in Press, Accepted Manuscript, Available Online from 18 December 2023


  Contemporary hospitals may be recognized by a large variety of activities, not only delivery of care but also some concerns, such as the satisfaction level of users. This research investigates the relationship between outpatient department (OPD) design elements and medical staff satisfaction and performance, ...  Read More

Improving the efficiency of the automobile engine cooling system using hybrid MWCNT/Al2O3 as nanofluids

Ahmed A. Mohammed; H. I. Dawood; Helen N. Onyeaka

Articles in Press, Accepted Manuscript, Available Online from 27 December 2023


  Imagine enhancing engine efficiency with a focus on revamping cooling systems using an innovative substance called nanofluids. These fluids can powerfully dissipate heat generated during combustion, ya know? Furthermore, nanofluids are characterized as nanoparticles dispersed within a base fluid - they're ...  Read More

Study the impact of using chitosan for removing methyl orange dye from synthetic wastewater

Reem Ihsan Abdul Hadi; Abbas Kh. Mohammad

Articles in Press, Accepted Manuscript, Available Online from 27 December 2023


  The primary objective of this study is to investigate the effectiveness of chitosan powder as an adsorbent for treating industrial wastewater contaminated with methyl orange. Chitosan is generally known in many academic fields and is readily available at a reasonable cost. Chitosan is a biopolymer derived ...  Read More

Numerical study on the influence of louver design on VRF system thermal performance in enclosed spaces in Erbil city

Kawa Abdulghany Abdullah; Ramzi Raphael Ibraheem Barwari

Articles in Press, Accepted Manuscript, Available Online from 13 January 2024


  Variable Refrigerant Flow (VRF) systems are extensively employed for space heating and cooling, particularly in multi-story buildings where outdoor units are discreetly placed behind aluminum louvers for architectural considerations. However, these metal louvers can hinder ventilation and heat rejection ...  Read More

Experimental investigation of perforated multi-layered composite armor subjected to ballistic impact

Muhanad Mosa; Ali Fahem; Achyuth Thumbalam Guthai

Articles in Press, Accepted Manuscript, Available Online from 01 March 2024


  Ballistic protection of vehicles has become an important endeavor, as it is concerned with how occupants can possess a comfortable feeling together with a high level of protection during a shooting incident. In recent years, numerous forms of armor have employed several kinds of distinct materials to ...  Read More

Efficient Load Balancer for Local Internet Service Providers Based on Operation Research

Tariq M. Salman; Maher K. Mahmood Al-Azawi; Viktar Tsviatkou

Articles in Press, Accepted Manuscript, Available Online from 15 February 2024


  Load balancing in internet services acts as a reverse proxy to distribute network bandwidth or application traffic across a number of servers. The decrease of internet route cost calculated from the distance, number of hops, bandwidth capacity, equipment maintenance, power consumption ...etc. is needed ...  Read More

Improving the mechanical behavior of sustainable pervious concrete using polypropylene and waste rope fibers

Abeer Alkraway; Shereen Qasim Abdulridha; Mohammad Salah Nasr; Zaid Ali Hasan; Ali Shubbar

Articles in Press, Accepted Manuscript, Available Online from 25 February 2024


  Urbanization has led to the damage of infrastructure due to floods and water accumulation on roads and sidewalks. To address this problem, pervious concrete was designed to drain water smoothly. However, pervious concrete has certain drawbacks, such as brittleness and poor tensile strength. To overcome ...  Read More

An Improved Throttling Algorithm for Fog Computing Networks with an Additional Management Layer

Turkan Ahmed Khaleel; Omar Anwer Nafea

Articles in Press, Accepted Manuscript, Available Online from 26 February 2024


  An emerging networking technique called fog computing extends cloud computing capabilities to the edge network's borders. It is employed to get around the limitations of cloud computing, like latency and bandwidth problems. Fog computing is suitable for IoT systems and applications that require ...  Read More

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