Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 67021 - 67050 of 5156588

Full-Text Articles in Entire DC Network

Improvement Of Metal Forging Processes By Stresses And Temperatures Analysis, Adnan Mohammeda, Ibrahim Ahmed, Munir Allow Mar 2026

Improvement Of Metal Forging Processes By Stresses And Temperatures Analysis, Adnan Mohammeda, Ibrahim Ahmed, Munir Allow

Engineering and Technology Journal

The mechanical components are produced by various fabrication methods, although forged products have excellent mechanical characteristics at a minimal cost. The stress and temperature analysis process in the closed die hot forging contributed to finding failure regions in these dies through simulations in the FE program. This enables the process to be improved and reduced time and mineral losses. A simplified model was used to represent the forming process, with a temperature of (1150-950 °C) was simulated using MSC Simufact software. The forge fastener head product is formed with a horizontal mechanical press of 800 tones. In this research, the …

Go to article

Influence Of Machining Parameters On Surface Roughness In Chemical Machining Of Silicon Carbide (Sic), Naeem Abdulhusein, Abbas Ibrahim, Abdullah Huayier Mar 2026

Influence Of Machining Parameters On Surface Roughness In Chemical Machining Of Silicon Carbide (Sic), Naeem Abdulhusein, Abbas Ibrahim, Abdullah Huayier

Engineering and Technology Journal

This study discussed the influence of chemical machining parameters such as (machining time, type of etchant, etching temperature, and concentration of the solution) on the surface roughness of ceramic material (silicon carbide) as a workpiece in the chemical machining (CHM) process. To achieve the best value for surface roughness. In this research, four levels of factors affecting the chemical etching process were used, the values of etching temperature (60, 80, 100, and 120) °C, the etchant concentration (50, 60, 70, and 80) %, and machining time (30, 50, 70, and 90) min, and two etchant type (HBr, HCl). Experiments proved …

Go to article

Preparation Of Cuo/Zno Nano-Particles Using Sol-Gel Technique And Studying The Characterization, Doaa Yassen, Farhad Othman, Alaa Abdul Hamead Mar 2026

Preparation Of Cuo/Zno Nano-Particles Using Sol-Gel Technique And Studying The Characterization, Doaa Yassen, Farhad Othman, Alaa Abdul Hamead

Engineering and Technology Journal

Copper oxide (CuO) and zinc oxide (ZnO) are two of the most promising oxides under development right now. The sol-gel technique was used to make Nano composite particles NCPs of ZnO-CuO. The copper (II) nitrate rehydrate 0.1M and zinc nitrate hex hydrate 0.1M liquids were mixed in a 1:1 ratio, and the gel was formed at 80 °C, then dried and calcined for various times 500 °C (3, 5, and 7 hours). Particle size analyzer (PZA), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and apparent density were used to characterize the CuO/MgO particles. The x-ray diffraction results showed …

Go to article

Effect Of Voltage On Electrode Wear Rate (Ewr) In The Electrical Discharge Machining (Edm) For Stainless Steel Aisi 444, Shukry Aghdeab, Anwer Abdulnabi Mar 2026

Effect Of Voltage On Electrode Wear Rate (Ewr) In The Electrical Discharge Machining (Edm) For Stainless Steel Aisi 444, Shukry Aghdeab, Anwer Abdulnabi

Engineering and Technology Journal

Electrical Discharge Machining process (EDM) is a nontraditional metal removal technique that uses thermal energy to erode the workpiece without generating any physical forces of cutting between the tool and the machining part. It is used to cutting of hard and electrical conductivity materials and product intricate shapes of products. The aim of this work is to study the effect of changing voltage values on electrode wear rate (EWR). The machining parameters includes voltage (V), peak current (Ip), pulse duration (Ton) and finally, pulse interval (Toff). The results show that the EWR was increase with rising in voltage, peak current …

Go to article

Properties Of Welded Copper Tubes Fabricated Via Friction Crush Welding, Abdul Jabbar Jomah, Akeel Subhi, Fadhil A. Hashim Mar 2026

Properties Of Welded Copper Tubes Fabricated Via Friction Crush Welding, Abdul Jabbar Jomah, Akeel Subhi, Fadhil A. Hashim

Engineering and Technology Journal

The welding process is one of the fabrication processes in which tubes can be performed for structural purposes and transport liquids or gases. This study is focused on the manufacturing, characterization, and evaluation of mechanical properties of welded tubes made from oxygen-free copper (C1020) sheets using friction crush welding. The welded tubes were produced using different tool rotation speeds (1500, 1600, and 1700 rpm) and feed rates (130, 140, and 150 mm/min). The flanged edge height of 2.5 mm and 0.5 mm gap between the ends of the copper sheet was used. All examinations on welded tubes were achieved using …

Go to article

Structural Characterization Of (Mg(1-X)Pbxo)-Nps By Modified Pechini Method, Israa Najem, Fadhil Abd Rasin, Shaker Edrees Mar 2026

Structural Characterization Of (Mg(1-X)Pbxo)-Nps By Modified Pechini Method, Israa Najem, Fadhil Abd Rasin, Shaker Edrees

Engineering and Technology Journal

The structural characterization was discussed in the present paper of the pure MgO nanoparticles and the doped (Mg(1-x)pbxO) nanoparticles specimens, where (0 ≤ x ≤ 0.03). The modified Pechini method was used to prepare all the specimens. From (DTA), the convenient temperature of decomposition from Mg(OH)2 to MgO was above 375°C. The structure investigation (XRD) revealed that all the specimens have identical space groups and index well to cubic structures. The obtained crystallite size by Scherrer''s equation was increased with increasing the fraction of doping except for (Mg0.97Pb0.03O) due to the formation of PbO oxide. The molecular vibration by FTIR …

Go to article

Effect Of Domestic Dry Sewage Sludge On Concrete Compressive Strength, Alaa Al-Obaidi, Riyad Al-Anbari, Maan Hassan Mar 2026

Effect Of Domestic Dry Sewage Sludge On Concrete Compressive Strength, Alaa Al-Obaidi, Riyad Al-Anbari, Maan Hassan

Engineering and Technology Journal

The possibility of saving and sustaining natural materials by reusing waste is one of the most important goals researchers seek to achieve and prove its effectiveness and positive impact on the environment. In this study, domestic wastewater sludge was utilized in concrete production as partial cement changing with different ratios (0, 5, 10, and 15) % with dry sludge. The study showed that the compressive strength test showed that the partial replacement of cement by dry sludge caused reduction increased directly with the increase of sludge ratio compared with concrete reference specimens. The study found that dry sludge can be …

Go to article

Mechanical Performance Of Blended Fly Ash-Based Geopolymer Concrete With Ggbs And Metakaolin, Ali Ali, Tareq Al-Attar, Waleed A. Abbas Mar 2026

Mechanical Performance Of Blended Fly Ash-Based Geopolymer Concrete With Ggbs And Metakaolin, Ali Ali, Tareq Al-Attar, Waleed A. Abbas

Engineering and Technology Journal

One of the most user-friendly alternatives to ordinary concrete is geopolymer concrete(GPC), which achieves the same result. GPC is a unique substance made by activating source materials with a high concentration of silica and alumina. As a result, geopolymer binders use less raw resources and emit less carbon dioxide. For these reasons, most academics are focusing on these sorts of resins to develop eco-friendly housing. This article reports on an experimental investigation that examined the Mechanical Performance of Blended Fly Ash based Geopolymer concrete at 7,28 and 360 days made with two different activator solution molarities and varying R (SiO2/Al2O3) …

Go to article

The Effect Of Scrap Tires Recycled Steel Fibers On Some Hardened Properties Of Green Scc, Nadeem Salam, Wasan Khalil Mar 2026

The Effect Of Scrap Tires Recycled Steel Fibers On Some Hardened Properties Of Green Scc, Nadeem Salam, Wasan Khalil

Engineering and Technology Journal

The purpose of this study is to investigate some hardened properties of green self-compacting concrete (GSCC) with 15% volumetric replacements of crushed clay brick waste as coarse aggregate and reinforced with scrap tires recycled steel fibers (STRSF) with 0, 0.25, 0.5and 0.75%volume fraction and 40 as an aspect ratio. Also, a combination of two STRSF aspect ratios of 40 and 60 was used in GSCC as hybrid fiber reinforcement (0.25 and 0.25%, 0.5 and 0.25%, 0.25 and 0.5% of aspect ratios 40 and 65, respectively). Scrap tires recycled steel fibers had been used to improve the properties of the green …

Go to article

Identifying Risk Factors Influencing Traffic Accidents For Baghdad Expressways, Hasan Joni, Mustafa Jasim Mar 2026

Identifying Risk Factors Influencing Traffic Accidents For Baghdad Expressways, Hasan Joni, Mustafa Jasim

Engineering and Technology Journal

In this paper, the SPSS program (version 25) and Binary Logistic Regression Model were used to implement and identify the risk factors that affect traffic accidents on Baghdad highways. Due to the increase in the number of traffic accidents that led to injuries and deaths in Iraq during the past years and the lack of specialized studies in traffic accidents, especially on highways, this required the preparation of a study to know the causes of accidents and to explore the factors that have a relative impact on (the severity of the accident). Four highways in the capital, Baghdad, were chosen …

Go to article

Investigation Of The Bearing Capacity And Collapsibility Of Gypseous Soil Using Geotextile Reinforcement, Qasim Al-Obaidi, Makki Mohsen, Ayad Asker Mar 2026

Investigation Of The Bearing Capacity And Collapsibility Of Gypseous Soil Using Geotextile Reinforcement, Qasim Al-Obaidi, Makki Mohsen, Ayad Asker

Engineering and Technology Journal

This study aims to increase the bearing capacity of the soil by using geosynthetics in a single, double, or triple distribution pattern. The gypseous soil samples were brought from a site near Sawa Lake in Al-Muthanna Governorate with a gypsum content of about (37%), the Soil-Model apparatus of dimensions (60 × 60 × 50) cm with the proposed square footing of dimensions (10 × 10) cm are used in the experimental program of this study. To achieve this goal, a series of (48) different model tests were used on gypseous soil subjected to vertical stress in both dry and wet …

Go to article

Managing The Excess Floodwaters In The Lake Hemrin Using Remote Sensing And Gis Techniques, Hussain Muhamed, Mustafa Hamoodi, Abd Alrazzak Ziboon Mar 2026

Managing The Excess Floodwaters In The Lake Hemrin Using Remote Sensing And Gis Techniques, Hussain Muhamed, Mustafa Hamoodi, Abd Alrazzak Ziboon

Engineering and Technology Journal

Lake Hemrin is located in the middle east of Iraq, about 50 km from the Iraqi-Iranian border. The lake is the main fish source and provides water for nearby farms. However, due to various socio-economic and environmental management issues, the Hemrin system is a difficult water resources challenge. Moreover, Lake Hemrin receives floodwaters annually over its storage capacity; therefore, there is a risk of flooding in the areas downstream of the lake. To this end, this research developed optimization solutions to design flood escape paths in the area using Analytic Hierarchy Process (AHP) and Genetic Algorithm (GA). Among three initial …

Go to article

Numerical Simulation Of The Effect Of Repeated Load And Temperature On The Behavior Of Asphalt Layers, Hind Akram, Miami Hilal, Mohammed Fattah Mar 2026

Numerical Simulation Of The Effect Of Repeated Load And Temperature On The Behavior Of Asphalt Layers, Hind Akram, Miami Hilal, Mohammed Fattah

Engineering and Technology Journal

Roads and highways are used by different vehicle types, and the heavy vehicles among them can be considered the most critical in loading, which causes failure in the pavement structure and increases rehabilitation and maintenance costs. In this study, the composite effects for wheel loads and temperature were considered in the finite element analysis using Abaqus 6.14. The asphalt layer was modeled as an elastic material, while the base and subbase layers were modeled as an elastoplastic material following the Mohr-Coulomb model. Also, the impact of wheel loads on flexible pavement settlement and the main output of analyzing pavement structure …

Go to article

Effect Of Wire-Mesh Type On Strengthening Reinforced Concrete Beams, Basil S. Al-Shathr, Haider A. Abdulhameed, Mohammed Mahdi Mar 2026

Effect Of Wire-Mesh Type On Strengthening Reinforced Concrete Beams, Basil S. Al-Shathr, Haider A. Abdulhameed, Mohammed Mahdi

Engineering and Technology Journal

Structural strengthening is a method of application to raise the load-ability capacity of building structures to meet the building's need to carry additional and unexpected loads that were not accounted for in the main design. In this study, Ferro-cement was used for strengthening concrete beams. Three locally available wire mesh types were used with an ordinary cement mortar to strengthen reinforced concrete beams under flexural loading. The results show that using a Ferro-cement layer with wire mesh of 15 mm size square opening has the best effect on increasing reinforced concrete beams' bearing capacity and deflection more than when using …

Go to article

Structural Behavior Of Ultra-High-Performance Concrete Beams Under Flexural And Shear Action: A Review, Adil Jabbar, Mohammed Hamood, Dhiyaa Mohammed Mar 2026

Structural Behavior Of Ultra-High-Performance Concrete Beams Under Flexural And Shear Action: A Review, Adil Jabbar, Mohammed Hamood, Dhiyaa Mohammed

Engineering and Technology Journal

Ultra-high performance concrete (UHPC) has a higher tensile strength than conventional concrete by about 6-times, besides a compressive strength greater than 150 MPa. It also exhibits linear and non-linear behavior on loading because of strain hardening and strain softening in compression and tension. Therefore, the effect of these mechanical properties can reflect in the beam behavior produced by UHPC. This paper deals with the methods and approaches adopted by some guidelines and recommendations that transact with the analysis and design of UHPC beams. The prevalent style of the methods is based on the equilibrium of the beam's section for the …

Go to article

Environmental Investigation Of Bahar Al-Najaf Region Using Sentinel-2 Images, Mustafa Al-Helaly, Imzahim Alwan, Amjed Al-Hameedawi Mar 2026

Environmental Investigation Of Bahar Al-Najaf Region Using Sentinel-2 Images, Mustafa Al-Helaly, Imzahim Alwan, Amjed Al-Hameedawi

Engineering and Technology Journal

This study aims to shed light on the indicators of environmental change and environmental impact assessment during the past five years in a representative area of the western part of Iraq (BAHAR-ALNAJAF). This is to understand the leading causes that led to the environmental changes from (2016 to 2020) due to the change in land cover in the study area. The paper refers to an environmental study for the study area using satellite data within the software environment (ArcGIS) and the application of remote sensing from two aspects: Ecological indices retrieval and the monitoring environment for land cover. Remote sensing …

Go to article

Modeling Critical Gap Of Al Turkmani Roundabout In Baghdad City, Laith Shadhan, Zainab Alkaissi Mar 2026

Modeling Critical Gap Of Al Turkmani Roundabout In Baghdad City, Laith Shadhan, Zainab Alkaissi

Engineering and Technology Journal

Interest in how roundabouts can most effectively be used continues to increase to achieve goals of safety, efficiency, along with other benefits. This research presents the most important element of the operational performance of roundabout traffic intersections in Baghdad city on capacity analysis. The obtained results for critical headway time are (3.35 sec) and (2.8 sec) for the Main west and East approaches. Also, the critical gap value for the West and East approach is less than the range of (NCHRP 572), possibly attributed to the congested traffic volume in  Al Turkman roundabout with aggressive driver behavior. Calculating in the …

Go to article

Effect Of Partial Saturation On Ultimate Bearing Capacity Of Skirted Foundations, Mahmood Mahmood, Saad Al-Wakel, Muthana Mohammed Mar 2026

Effect Of Partial Saturation On Ultimate Bearing Capacity Of Skirted Foundations, Mahmood Mahmood, Saad Al-Wakel, Muthana Mohammed

Engineering and Technology Journal

Skirted foundations are one of the solutions proposed to increase the bearing capacity of the soil. They assist in increasing the load and depth of failure in weak ground or soils with low shear resistance and reducing the foundation settlement if a soil improvement method cannot be applied or the cost of implementing deep foundations increases. This study examined and investigated the extent of soil bearing of skirted foundations on sandy soils and studied the effect of soil saturation cases and three cases of water content reduction to measure the matric suction value of unsaturated soil. A physical model was …

Go to article

Swot-Based Assessment Of The Maintenance Management Of The Wastewater Treatment Plants In Iraq, Reem Al-Attar, Faris Al-Ani, Mahmoud Al-Khafaji Mar 2026

Swot-Based Assessment Of The Maintenance Management Of The Wastewater Treatment Plants In Iraq, Reem Al-Attar, Faris Al-Ani, Mahmoud Al-Khafaji

Engineering and Technology Journal

In Iraq, due to WWTPs being old and outdated, an evaluation of the maintenance management is needed to highlight the points of weaknesses and strengths of the plants. In this paper, the strength, weakness, Opportunities, and Threats (SWOT) analysis model is designed with the Delphi Technique and Liker-scale and applied to the old Rustumiya project in Iraq (ORP). The design and application of this model are based on the design, operation and maintenance drawings and reports, and field visits to the ORP. In addition, three rounds of the questionnaire were sent to more than 80 experts varied in qualification and …

Go to article

Assessment Of Future Climate Change Impacts On Water Resources Of Khabour River Catchment, North Of Iraq, Lena Haitham, Mustafa Al-Mukhtar Mar 2026

Assessment Of Future Climate Change Impacts On Water Resources Of Khabour River Catchment, North Of Iraq, Lena Haitham, Mustafa Al-Mukhtar

Engineering and Technology Journal

In arid and semi-arid areas, assessing the potential impact of climate change on water availability is of critical importance for achieving better management of future water resources. Iraq as one example of those areas is expected to experience more stress on water due to the climatological characteristics and to the rapid population growth in addition to the policy of the riparian upstream countries. Therefore, the present study aims to quantify the impacts of climate change on the Khabour River catchment north of Iraq, which is one of the riparian catchments between Iraq and Turkey. The HEC-HMS model was firstly calibrated …

Go to article

Push–Out Test Of Timber Concrete Composite Construction, Ihab Saleh, Nabeel Jasim, Anis Mohhamed Ali Mar 2026

Push–Out Test Of Timber Concrete Composite Construction, Ihab Saleh, Nabeel Jasim, Anis Mohhamed Ali

Engineering and Technology Journal

In this study, push – out test specimen is proposed to explore the behavior of shear connectors in timber–concrete composite beams. Since there are no standard shapes and dimensions for determining the strength of connectors, push–out specimens such as those used for steel-concrete composite beams are suggested to study the behavior of connectors in timber concrete composite beams. Four specimens are tested. Two of these specimens are with one connector per side. The other two are with two connectors per side. The load and slip are recorded during testing. The results show that the ultimate load per connector ranges from …

Go to article

Monitoring Soil Degradation In The Mesopotamian Plain Using Gis And Remote Sensing Techniques, Abdulrazak Ziboon, Muthanna Albayati, Fadhaa Dalhel Mar 2026

Monitoring Soil Degradation In The Mesopotamian Plain Using Gis And Remote Sensing Techniques, Abdulrazak Ziboon, Muthanna Albayati, Fadhaa Dalhel

Engineering and Technology Journal

In the present work , various remote sensing techniques have been used to investigate soil degradation in Iraq (The Mesopotamian plain) for the period (1976 - 2021) using different research and data like satellite image such as (Landsat 1-5 MSS 1976 , Landsat 4-5 TM C1 Level-1 1996, Landsat 8 2016 and sentinel-2 2021 ) , using different Program and software (ENVI 5.3 which extract data from image satellite by using TCT , EMI and NDVI indicators , Eras image 2015 use to subset area of interest ,layer stack and merge resolution , Arc GIS 10.7 use to make database …

Go to article

Finite Element Simulation Of Repeated Loading Test Of Asphalt Concrete, Noor Hatem, Miami Hilal, Mohammed Fattah Mar 2026

Finite Element Simulation Of Repeated Loading Test Of Asphalt Concrete, Noor Hatem, Miami Hilal, Mohammed Fattah

Engineering and Technology Journal

In this paper, the Abaqus 6.14 version program was used to carry out a three-dimensional finite element analysis to predict the rut in the asphalt laboratory model. In a previous study, a cylinder model of asphalt was tested under the influence of traffic loads and temperature. The test was simulated using the finite element method considering the boundary conditions, load steps, and temperature. The cohesive zone model (CZM) approach was used in the Abaqus program to analyze the spread of the rutting in the model to simulate the fracture and improve the sample structure and the materials used. The Abacus …

Go to article

3d Numerical Modeling Of Soft Soil Improved By Rigid Inclusions Supported An Embankment, Messioud Salah, Neghmouche Yassamina Mar 2026

3d Numerical Modeling Of Soft Soil Improved By Rigid Inclusions Supported An Embankment, Messioud Salah, Neghmouche Yassamina

Engineering and Technology Journal

Abstract A three-dimensional finite element model suggested to determine the settlements and stresses of an embankment placed on soft soil reinforced by rigid inclusions. To make it simple the layers of soil and the embankment are supposed to be horizontal in a semi-infinite medium and the base of the soft soil is supposed to be rigid (bedrock). The interacting elements of the model are supposed to be elastic. The determination of the behavior of the soil-inclusions-embankment system was realized according to the construction phases of the embankment layers. The settlements and stresses were calculated according to construction phases of the …

Go to article

Development Of Intensity-Duration-Frequency (Idf) Models For Manually Operated Rain Gauge Catchment: A Case Study Of Port Harcourt Metropolis Using 50years Rainfall Data, Francis Ogbozige Mar 2026

Development Of Intensity-Duration-Frequency (Idf) Models For Manually Operated Rain Gauge Catchment: A Case Study Of Port Harcourt Metropolis Using 50years Rainfall Data, Francis Ogbozige

Engineering and Technology Journal

Hydraulic structures such as surface drainages and culverts are usually constructed in urban areas with the intention of draining runoff into nearby streams and rivers in order to avoid flooding. However, most of these structures frequently fail to serve the intended use due to the occurrence of high intensity rainfall accompanied with long duration, which produce runoff discharge higher than their designed capacities. This is common in many developing countries as drainages and culverts are most times constructed without considering hydrological analysis of the catchment. Hence, this research considered Port Harcourt city as a case study by utilizing 50years rainfall …

Go to article

Comparative Analysis Of Gmm, Knn, And Vibe Background Subtraction Algorithms Applied In Dynamic Background Scenes Of Video Surveillance System, Maryam Yasir, Yossra Ali Mar 2026

Comparative Analysis Of Gmm, Knn, And Vibe Background Subtraction Algorithms Applied In Dynamic Background Scenes Of Video Surveillance System, Maryam Yasir, Yossra Ali

Engineering and Technology Journal

Background subtraction is the most prominent technique applied in the domain of detecting moving objects. However, there is a wide range of different background subtraction models. Choosing the best model that addresses a number of challenges is still a vital research area.Therefore, in this article we present a comparative analysis of three promising algorithms used in this domain, GMM, KNN and ViBe. CDnet 2014 is the benchmark dataset used in this analysis with several quantitative evaluation metrics like precession, recall, f-measures, false positive rate, false negative rate and PWC. In addition, qualitative evaluations are illustrated in snapshots to depict the …

Go to article

Building An Efficient System To Detect Computer Worms In Websites Based On Ensemble Ada Boosting And Svm Classifiers Algorithms, Ali Hilool, Soukaena Hashem, Shatha Jafer Mar 2026

Building An Efficient System To Detect Computer Worms In Websites Based On Ensemble Ada Boosting And Svm Classifiers Algorithms, Ali Hilool, Soukaena Hashem, Shatha Jafer

Engineering and Technology Journal

Computer worms perform harmful tasks in network systems due to their rapid spread, which leads to harmful consequences on system security. However, existing worm detection algorithms are still suffered a lot to achieve good performance. The reasons for that are: First, a large number of irrelevant data impacts classification accuracy (irrelevant feature gives estimator new ways to go wrong without any expected benefit also can cause overfitting, which will generally lead to decreased accuracy). Second, the individual classifiers used extensively in the systems do not effectively detect all types of worms. Third, many systems are built based on old datasets, …

Go to article

Algebraic Decomposition Method For Zero Watermarking Technique In Ycbcr Space, Nada Mohammed, Areej Abduldaim Mar 2026

Algebraic Decomposition Method For Zero Watermarking Technique In Ycbcr Space, Nada Mohammed, Areej Abduldaim

Engineering and Technology Journal

The close connection between mathematics, especially linear algebra, and computer science has greatly impacted the development of several fields, and the most important is image processing. Algebraic methods aroused interest in building digital image watermarking techniques and are used to find the features of the image to hide the watermark. This paper aims to use the algebraic Hessemberge decomposition method (HDM) for the first time as a transformation to extract the features of the image without using any popular transformation for building zero watermarking. To achieve the aim, two techniques are used, HDM with and without discrete cosine transform (DCT); …

Go to article

Street Scene Understanding Via Semantic Segmentation Using Deep Learning, Amani Noori, Shaimaa Shaker, Raghad A. Azeez Mar 2026

Street Scene Understanding Via Semantic Segmentation Using Deep Learning, Amani Noori, Shaimaa Shaker, Raghad A. Azeez

Engineering and Technology Journal

Scene classification is an essential conception task used by robotics for understanding the environment. Like the street scene, the outdoor scene is composed of images with depth that has a greater variety than iconic object images. Image semantic segmentation is an important task for Autonomous driving and Mobile robotics applications because it introduces enormous information needed for safe navigation and complex reasoning. This paper provides a model for semantic segmentation of outdoor sense to classify each object in the scene. The proposed network model generates a hybrid model that combines U-NET with Xception networks to work on 2.5 dimensions cityscape …

Go to article

The Effect Of Sputtering Time And Substrate Type On The Structure Of Zinc Nanoparticles Prepared By The Dc Sputtering Technique, Iman Hadi, Muslim Jawad, Khaleel Hassoon Mar 2026

The Effect Of Sputtering Time And Substrate Type On The Structure Of Zinc Nanoparticles Prepared By The Dc Sputtering Technique, Iman Hadi, Muslim Jawad, Khaleel Hassoon

Engineering and Technology Journal

Zn thin films have been successfully deposited on two different substrates, FTO and p-type Si (111), with thickness (112, 186) nm at (1 and 8) min, respectively, via DC sputtering technique in this work. Structural properties of the prepared thin films were studied using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM). XRD results showed that the samples have a hexagonal wurtzite structure. From the results of FESEM images, all the samples showed a uniform distribution of granular surface shape morphology. The grain sizes of the Zn thin films were estimated based on measured X-ray diffraction patterns. Zn thin …

Go to article

First Prev Next Last