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Development Of Project-Based Learning Instructional Materials Integrated With Realia To Enhance Science Literacy In Early Childhood Education, Tati Junaedah, Anita Chandra Dewi, Achmad Buchori Jul 2026

Development Of Project-Based Learning Instructional Materials Integrated With Realia To Enhance Science Literacy In Early Childhood Education, Tati Junaedah, Anita Chandra Dewi, Achmad Buchori

Journal of ICSAR

Science literacy is a fundamental competence that should be fostered from early childhood through meaningful and contextual learning experiences. However, science instruction in many early childhood education settings remains teacher-centered and provides limited opportunities for children to explore scientific concepts using concrete learning media. This study aimed to develop and evaluate Project-Based Learning (PjBL) instructional materials integrated with realia media to improve science literacy among children aged 5–6 years at TK Al Khidmah, Tegal City. A Research and Development (R&D) approach using the ADDIE model was employed, including the stages of analysis, design, development, implementation, and evaluation. The study involved …

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Implementation Of Universal Design For Assessment For Visually Impaired Students: A Systematic Review Of Strategies And Challenges In Higher Education, Risa Safira Ramadhani, Budi Susetyo, Tati Hernawati, Iding Tarsidi, Imas Diana Aprilia Jul 2026

Implementation Of Universal Design For Assessment For Visually Impaired Students: A Systematic Review Of Strategies And Challenges In Higher Education, Risa Safira Ramadhani, Budi Susetyo, Tati Hernawati, Iding Tarsidi, Imas Diana Aprilia

Journal of ICSAR

Visually impaired students face various barriers in accessing assessments in higher education. Universal Design for Assessment (UDA) offers a framework for creating assessments that are inclusive and accessible to all students without compromising the validity and reliability of the measurements. This article presents a systematic review of the implementation of Universal Design for Assessment (UDA) for visually impaired students in higher education, identifying effective strategies and challenges encountered. The results of the review show that the application of Universal Design for Assessment (UDA) principles such as format flexibility, technology accessibility, and inclusive design can increase the participation of visually impaired …

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Development And Validation Of A 7e Learning Cycle–Based Science Instructional Model For Students With Mild Intellectual Disabilities In Phase B, Trisna Mulyeni, Delfi Eliza, Irah Kasirah, Marja Marja, Kholifatul Novita Ningsih Jul 2026

Development And Validation Of A 7e Learning Cycle–Based Science Instructional Model For Students With Mild Intellectual Disabilities In Phase B, Trisna Mulyeni, Delfi Eliza, Irah Kasirah, Marja Marja, Kholifatul Novita Ningsih

Journal of ICSAR

This study aimed to develop and validate a 7E Learning Cycle–based science instructional model for students with mild intellectual disabilities in Phase B of Indonesia’s national curriculum (Merdeka Curriculum) for special education (SDLB). In this curriculum, Phase B is described using a curriculum-based mental-age reference of approximately eight years. Conducted within an Educational Design Research (EDR) framework, the study employed a five-phase Research and Development (R&D) procedure to guide the design, expert validation, and iterative refinement of the instructional model. This study contributes by adapting the 7E Learning Cycle into an accessible inquiry-based science instructional model that incorporates structured phases, …

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The Use Of Canva Learning Media To Improve The Learning Focus Of Students With Special Needs At Slbn Balikpapan In The Subject Of Flat Shapes, Rahayu Sri Waskitoningtyas, Sugianto Sugianto, Casmudi Casmudi Jul 2026

The Use Of Canva Learning Media To Improve The Learning Focus Of Students With Special Needs At Slbn Balikpapan In The Subject Of Flat Shapes, Rahayu Sri Waskitoningtyas, Sugianto Sugianto, Casmudi Casmudi

Journal of ICSAR

The purpose of this study was to determine how the application of Canva learning media could improve the learning focus of students with special needs at SLBN Balikpapan with flat building materials. The study was conducted at SLBN Balikpapan using flat building materials. The research subjects were students at SLBN Balikpapan. This study was descriptive and qualitative. There were 22 students at SLBN Balikpapan who were the research subjects, using purposive sampling. The data collection methods were (1) observation, (2) interviews with 6 students and two teachers at SLBN Balikpapan, and (3) instruments/questionnaires regarding the use of Canva. The questionnaire …

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Simulation Of Magnesium Defects Under Concurrent Stress And Vibration Using Interatomic Potentials, Chimereze Emenike, Christopher Barrett Jul 2026

Simulation Of Magnesium Defects Under Concurrent Stress And Vibration Using Interatomic Potentials, Chimereze Emenike, Christopher Barrett

Research Experiences for Undergraduates in Computational Methods with Applications in Materials Science

Magnesium is the lightest structural metal, and its strength-to-weight and stiffness-to-weight ratios give it great potential for weight reduction in various industries. However, it is brittle at room temperature due to its crystal structure, making it unfit for the manufacture of parts requiring stamping or rolling. Our research is concerned with the movement of defects critical to the ductility of magnesium under different conditions. In this project, we investigated the movement of a Pyramidal Il edge dislocation in magnesium structures undergoing shear and oscillatory stress. We hypothesize that oscillating stress could help the dislocation move more quickly. This would suggest …

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Continuous Data Assimilation For Geophysical Flow, Amanda E. Diegel, Sehani Edirisinghe, Mary Chase Pittman Jul 2026

Continuous Data Assimilation For Geophysical Flow, Amanda E. Diegel, Sehani Edirisinghe, Mary Chase Pittman

Research Experiences for Undergraduates in Computational Methods with Applications in Materials Science

We consider continuous data assimilation, a numerical method which incorporates known data, to model geophysical flow. Geophysical flow simulations are important to weather and ocean modeling, the study of climate change, modeling pollutant transport in the ocean, and many other areas. We study the barotropic vorticity model, which tracks fluid vorticity and the streamfunction, using the finite element method with continuous data assimilation. Utilizing MATLAB with the finite element C++/MATLAB toolbox FELICITY, we seek to answer whether incorporating known vorticity data, but not streamfunction data, into the numerical simulation in real time with lead to long-term accurate approximate solutions even …

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A Blind Comparative Study On Isothermal Sloshing In A Circular Tank (Ccp-Wsi Blind Test Series 5), S. A. Brown, S. W. Colville, V. Francis, T. Zhao, Y. C. Lee, D. Cao, H. Chen, J. Chen, S. Chen, J. Davidson, J. Gong, H. Gu, A. Khayyer, D. H. Kim, W. Liu, M. Luo, R. Lyu, Q. Ma, H. Ma, O. Mahfoze, I. Pregnan Johannesen, Y. Qin, S. Shrestha, G. Tabor, R. Tan, E. Wahbah Makhoul, D. Wang, Y. Wang, H. Wei, S. Yan Jul 2026

A Blind Comparative Study On Isothermal Sloshing In A Circular Tank (Ccp-Wsi Blind Test Series 5), S. A. Brown, S. W. Colville, V. Francis, T. Zhao, Y. C. Lee, D. Cao, H. Chen, J. Chen, S. Chen, J. Davidson, J. Gong, H. Gu, A. Khayyer, D. H. Kim, W. Liu, M. Luo, R. Lyu, Q. Ma, H. Ma, O. Mahfoze, I. Pregnan Johannesen, Y. Qin, S. Shrestha, G. Tabor, R. Tan, E. Wahbah Makhoul, D. Wang, Y. Wang, H. Wei, S. Yan

School of Engineering, Computing and Mathematics

Numerical modelling is important in many fluid dynamics applications, yet robust benchmarking is required to quantify uncertainty. This study presents results from a blind comparative benchmark of isothermal sloshing in a circular tank. Sloshing is relevant to many engineering applications, including offshore shipping, where vessel motions can excite internal fluid motion, generating impact loads and affecting stability. A series of horizontal and vertical excitation cases of increasing complexity are considered. Participant solutions for free surface displacements are compared against physical model data that was withheld until after submission. Across all cases, the numerical models generally capture the dominant frequency. Typical …

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A Visitation Grid For Complete Coverage Foraging In Robot Swarms, Arturo Gonzalez, Yifeng Gao, Li Zhang, Qi Lu Jul 2026

A Visitation Grid For Complete Coverage Foraging In Robot Swarms, Arturo Gonzalez, Yifeng Gao, Li Zhang, Qi Lu

Computer Science Faculty Publications

The complete collection of sparse resources in large, unknown environments remains a challenging problem for autonomous robot swarms. Previous studies have shown that a substantial portion of total mission time is consumed during the final stage of collection, where only a small fraction of randomly scattered resources remain. Consequently, many existing swarm foraging algorithms (search and collection) focus on collecting most resources within a limited time window, rather than improving end-stage efficiency for collecting all resources. We propose a grid-based stochastic foraging strategy that explicitly reduces redundant visits and accelerates late-stage collection. The unknown search area is partitioned into a …

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Governance, Culture, And Law: The Expanding Scope Of Environmental Science And Sustainable Development Research, Ahyaudin Sodri, Herdis Herdiansyah Jul 2026

Governance, Culture, And Law: The Expanding Scope Of Environmental Science And Sustainable Development Research, Ahyaudin Sodri, Herdis Herdiansyah

Journal of Environmental Science and Sustainable Development

Environmental science emerged as a discipline based on physical measurements, such as soil pollutant levels (Ailijiang et al., 2022), ecological restoration (Yue et al., 2026), city surface temperature (Shafizadeh-Moghadam et al., 2025), and microbial density in air samples (Hayleeyesus & Manaye, 2014). However, its objects of study increasingly extend beyond the confines of the laboratory. Questions that were once sufficiently answered with measurement data now require answers through draft laws, Constitutional Court decisions, financial reports of mining companies, and even traditional ritual discourses governing community access to forests. In other words, environmental …

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Model-Free Sliding Mode Control On Dc Motor Modules Using Coulomb Friction Simulation, Donovan Barros Jul 2026

Model-Free Sliding Mode Control On Dc Motor Modules Using Coulomb Friction Simulation, Donovan Barros

Theses

Classical control methods such as PID control are effective for simple systems where the system model is well-known and tuning can be completed without significant time and financial investment. However, systems in the modern world have become more intricate and complicated to model, which also results in more extensive tuning being required to develop effective controllers. Sliding Mode Control was developed as a more robust way to handle nonlinear systems while ensuring global asymptotic stability using Lyapunov’s stability theorem. Traditional Sliding Mode Control does still require a well-known system model, necessitating the development of a new control method. Model-Free Sliding …

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Pragmatic Analysis Of Ai Image-To-Text Generation: The Case Of Chatgpt, Grok, And Gemini, Ariel U. Bosque Jul 2026

Pragmatic Analysis Of Ai Image-To-Text Generation: The Case Of Chatgpt, Grok, And Gemini, Ariel U. Bosque

Social Sciences and Development Review

The study aims to conduct a comparative analysis of ChatGPT, Grok, and Gemini to evaluate their capacities in image-to-text generation. The researcher utilized three AI-generated image prompts from Canva, which were processed through the mentioned generative AI (GenAI) models. With the aid of a standardized text prompt, each model was instructed to produce eighteen descriptive sentences corresponding to the prompts. The study examined the contextual alignment, pragmatic appropriateness, as well hallucinations and pragmatic errors present in the generated sentences through pragmatic analysis. The analysis revealed the use of appropriate referents, modal markers, and descriptive details that contributed to contextually and …

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Summary & Discussion On United Nations Preliminary Report On Ai: Benefits And Harms Of Artificial Intelligence For Civil Society, Angie Holzer Jul 2026

Summary & Discussion On United Nations Preliminary Report On Ai: Benefits And Harms Of Artificial Intelligence For Civil Society, Angie Holzer

Journal of Nonprofit Innovation

In July 2026, the United Nations' newly formed Independent International Scientific Panel on Artificial Intelligence released its first Preliminary Report, offering the first global, scientific assessment of AI's capabilities, risks, and impacts. This article examines the report's findings through the lens of civil society, organizing the Panel's evidence around three questions of direct relevance to nonprofit leaders and researchers: how rapidly AI capability is advancing, who controls its development, and where its benefits and harms are concentrated. Drawing on the Panel's data across societal applications, economic implications, human rights and information integrity, cultural flourishing and child safety, and AI governance, …

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Effects Of Scion And Rootstock On Arbuscular Mycorrhizal Symbiosis And Spore Communities In Vitis Vinifera, Nicholas Vergara, Stephen Bentivenga Jul 2026

Effects Of Scion And Rootstock On Arbuscular Mycorrhizal Symbiosis And Spore Communities In Vitis Vinifera, Nicholas Vergara, Stephen Bentivenga

STEM Student Research Symposium Posters

Arbuscular mycorrhizal fungi (AMF) are obligate root symbionts that extend host nutrient uptake in exchange for photosynthate. Nearly all commercial wine grapes (Vitis vinifera) are grafted onto American rootstocks selected for phylloxera resistance, drought tolerance, and vigor, meaning the root system interfacing with soil fungi is genetically distinct from the fruiting scion. Whether root system origin shapes AMF association remains poorly resolved, particularly in sandy, low-fertility soils. We compared AMF colonization and spore communities across four rootstock–scion combinations (Cabernet Franc and Merlot scions, own-rooted and riparian rootstock) at William Heritage® Winery in Mullica Hill, NJ. Fine roots were cleared, stained, …

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Sums Of Consecutive Integers And Sequence Of Divisors, Mushrat Fatema, Abdulkadir Hassen Jul 2026

Sums Of Consecutive Integers And Sequence Of Divisors, Mushrat Fatema, Abdulkadir Hassen

STEM Student Research Symposium Posters

This work is concerned with two problems in number theory. The first part is to find the maximum number of sequence of integers such that two consecutive numbers in the list are multiple or factor of the other, and integers that can be expressed as a sum of consecutive integers.

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Comparison Of Arbuscular Mycorrhizal Fungal Colonization And Spore Communities Between Clover-Dominated Cover Crop And Restored Native Grass Systems, Nicholas Vergara, Stephen Bentivenga Jul 2026

Comparison Of Arbuscular Mycorrhizal Fungal Colonization And Spore Communities Between Clover-Dominated Cover Crop And Restored Native Grass Systems, Nicholas Vergara, Stephen Bentivenga

STEM Student Research Symposium Posters

Arbuscular mycorrhizal fungi (AMF) are obligate root symbionts that extend host nutrient uptake in exchange for photosynthate. Restored native grasslands and cover-cropped fields represent contrasting management strategies applied to former conventional farmland, differing in both tillage frequency and plant diversity, yet how these strategies shape AMF association in sandy, low-fertility soils remains largely understudied. We compared AMF colonization and spore communities between two adjacent sites converted approximately three years prior at the Bishop Farmstead, Southampton Township, NJ: a restored grassland dominated by Panicum virgatum and an agricultural field under white and red clover cover (Trifolium repens, T. pratense). Fine roots …

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Oncogenic E-Cadherin-Dependent Metastasis And Potential Therapeutic Interventions, Madison K. Duenas, Anjela Anand, Paige Cano, Ralph Boccia, Mary Alpaugh Jul 2026

Oncogenic E-Cadherin-Dependent Metastasis And Potential Therapeutic Interventions, Madison K. Duenas, Anjela Anand, Paige Cano, Ralph Boccia, Mary Alpaugh

STEM Student Research Symposium Posters

Oncogenic E-cadherin-dependent metastasis is a paradoxical mechanism of cancer progression whereby E-cadherin, a cell-to-cell adhesion protein that normally suppresses tumor invasion, instead promotes the formation of cohesive cell tumor clusters that collectively invade surrounding tissues and metastasize. This phenomenon has been extensively studied using inflammatory breast cancer (IBC) models, including the MARY-X xenograft and SUM149 cell line, while comparisons with other breast cancer models such as MDA-MB-231 continue to provide insight into E-cadherin-independent metastatic mechanisms. This project reviews recent literature investigating the molecular mechanisms behind it and evaluates emerging therapeutic strategies targeting E-cadherin-associated cellular pathways. Laboratory techniques, including spheroid generation …

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Water Flow Simulation Of Tigris River Between Samara And Baghdad Based On Hec-Ras Model, Imzahim Alwan, Zahraa Majeed, Ali Abbas Jul 2026

Water Flow Simulation Of Tigris River Between Samara And Baghdad Based On Hec-Ras Model, Imzahim Alwan, Zahraa Majeed, Ali Abbas

Engineering and Technology Journal

This work aims to use the digital elevation model (DEM) or 3-Dimensional surface to model and analyze the water flow in the Tigris River. The first stage of this study is based on filed data acquisition survey at 38 stations.  These stations were adopted to implement the one-dimensional steady and unsteady numerical flow models. The HEC-RAS software was used to implement these models. The most important results of the steady-state model were that the maximum discharge and velocity and minimum flow area were 638.17 m3/sec, 2.12 m/sec and 301.42 m2 respectively. These values occurred at station 66+700. While, the minimum …

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The Evaluation Of Rental Amount Of Religious Endowments By Using Geomatic Techniques And Machine Learning Algorithms Hilla/ Iraq, Oday, Jasim, Mohammed Mejbel, Ali Hashim Jul 2026

The Evaluation Of Rental Amount Of Religious Endowments By Using Geomatic Techniques And Machine Learning Algorithms Hilla/ Iraq, Oday, Jasim, Mohammed Mejbel, Ali Hashim

Engineering and Technology Journal

The religious endowments are one of the important sources, which acquire historical, cultural, and economic importance in all countries of the world. In particular, a religious endowment in Iraq includes several distributed real estates and lands that usually require efficient management systems. One of the most important factors affecting the management of real estates that belong to religious endowments is the rental amount of each real estate. In general, the estimation of the rental of real estates can support the future development of religious endowments. Governmental agencies are faced with some challenges in the management of religious endowments in terms …

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Improving The Properties Of A Polyester-Based Composite Using Nanoparticle Fillers, Zainab Younus, Laith Abbas, Abbas Hussein Jul 2026

Improving The Properties Of A Polyester-Based Composite Using Nanoparticle Fillers, Zainab Younus, Laith Abbas, Abbas Hussein

Engineering and Technology Journal

In this work, unsaturated polyester, resin, matrix reinforced, with fiberglass mat chopped were developed using TiO2 and SiO2 Nanoparticles as filler materials. The individual and combined effects of nanoparticles on the nanocomposite and material properties were examined. An improvement in Young’s modulus (39,3%) using combined weight of TiO2+ SiO2 was observed to be 3%. Examined nanoparticles have shown normal distribution in grain size indicated to be within standard limit, therefore boosting nanocomposite material to have excellent hardness, roughness, impact, and flexural resistance. DSC was characterized by transitions in this material. SEM and EDS techniques were used to confirm the formation …

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Unit Commitment Solution Based On Improved Particle Swarm Optimization Method, Ali Abbas, Afaneen Anwer Jul 2026

Unit Commitment Solution Based On Improved Particle Swarm Optimization Method, Ali Abbas, Afaneen Anwer

Engineering and Technology Journal

This paper presents an algorithm to solve the unit commitment problem using the intelligence technique based on improved Particle Swarm Optimization (IPSO) for establishing the optimal scheduling of the generating units in the electric power system with the lowest production cost during a specified time and subjected to all the constraints. The minimum production cost is calculated based on using the Lambda Iteration method. A conventional method was also used for solving the unit commitment problem using the Dynamic Programming method (DP). The two methods were tested on the 14-bus IEEE test system and the results of both methods were …

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Field Oriented Control Of Afpmsm For Electrical Vehicle Using Adaptive Neuro-Fuzzy Inference System (Anfis), Nagham Farhan, Abdulrahim Humod, Fadhil Hasan Jul 2026

Field Oriented Control Of Afpmsm For Electrical Vehicle Using Adaptive Neuro-Fuzzy Inference System (Anfis), Nagham Farhan, Abdulrahim Humod, Fadhil Hasan

Engineering and Technology Journal

Axial Flux Permanent Magnet Synchronous Motor (AFPMSM) are very attractive candidates for driving applications due to their high efficiency, high torque-to-weight ratio, high power density, small magnetic thickness, and simplicity of construction. On the other hand, AFPMSM produces undesirable torque ripple in the developed electromagnetic torque, affecting their output performance. An intelligent control method is proposed in this paper to reduce torque ripple and improve the dynamic performance of AFPMSM.  The vector control, employing the Field Oriented Control (FOC) technique, was used to improve the dynamic performance of the AFPMSM. The speed and torque controllers are achieved using the decoupling …

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A Visual Enhancement Quality Of Digital Medical Image Based On Bat Optimization, Kholood Hussin, Ali Nahar, Hussain Khleaf Jul 2026

A Visual Enhancement Quality Of Digital Medical Image Based On Bat Optimization, Kholood Hussin, Ali Nahar, Hussain Khleaf

Engineering and Technology Journal

Improve medical image visualization is a critical preliminary step before further imagery processing like analyzing texture, extracting features, and segmentation. Imagery noises in medical images are frequently occurred as a consequence of different artificial processes such as acquisition, sending and receiving, and storing & retrieving processes. As a result, the quality of image visualization is degraded. Therefore, a de-noise process is important in order to maintain good image quality for medical purposes. In this paper, medical image enhancement aims to de-noise as much as possible while maintaining detailed features and edges. This work employed an optimization algorithm called "Bat" to …

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Optimal Localization Of Upfc For Transmission Line Losses Minimizing Using Particle Swarm Optimization, Ihssan Amin, Dhari Mahmood, Ali Numan Jul 2026

Optimal Localization Of Upfc For Transmission Line Losses Minimizing Using Particle Swarm Optimization, Ihssan Amin, Dhari Mahmood, Ali Numan

Engineering and Technology Journal

Losses in the transmission line have a significant and growing impact on power systems around the world. Line losses overheat power lines, therefore electrical power systems require powerful processors and intelligent management methods. Flexible AC Transmission System (FACTS) device UPFC is one of the most important devices due to its ability to reduce total line losses that cause an increase in the transmission line capacity of the power system. In this paper, we used Particle Swarm Optimization (PSO) to determine the optimal location for the installation of UPFC device to minimize losses in the transmission line in the Iraqi international …

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Reducing Vibrations Generated In A Gas Turbine Model Ms9001e Used In South Baghdad Power Plant Station By Improving The Design Of Bearings With Damper, Alaa Abdulah, Muhannad Khalifa, Abdul Jabbar Hanfesh Jul 2026

Reducing Vibrations Generated In A Gas Turbine Model Ms9001e Used In South Baghdad Power Plant Station By Improving The Design Of Bearings With Damper, Alaa Abdulah, Muhannad Khalifa, Abdul Jabbar Hanfesh

Engineering and Technology Journal

Gas turbines are engines an energy plant makes use of for generating the rotary motion to show power generators. The gas turbine is largely a combustion engine for changing natural gas or different liquid fuels to rotational mechanical energy. Often, the gas turbine generates excessive noise or vibrations. In this work, the problem of vibrations occurrence in the gas turbine model MS9001E used in the south Baghdad power station is solved. This is done by making a groove in the bearing pad to increase the oil flow, replacing the bearing type with a tilt-pad bearing type with damper. The finite …

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Experimental Study Of Air Ejector Performance To Cool Agricultural Products, Hassan Jawad, Qusay Abdul Ghafoor Jul 2026

Experimental Study Of Air Ejector Performance To Cool Agricultural Products, Hassan Jawad, Qusay Abdul Ghafoor

Engineering and Technology Journal

In this research, an ejector was designed and manufactured from brass metal as part of a cooling system to cool agricultural products, work of ejector is based on the Venturi principle. The primary fluid is air and steam of product is the secondary fluid, used the primary pressure (1, 8, 1) bar for the purpose of conducting the experiment. The ejector was manufactured from a number of interconnected parts to give the final shape. The performance of the ejector was analyzed theoretically, through operating of system evaporation of water take place in vessel  leads to cooling product at change operation …

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Distinguish The Textures Of Grasped Objects By Robotic Hand Using Artificial Neural-Network, Hassan Salman, Mohsin Hamzah, Sadeq Bakhy Jul 2026

Distinguish The Textures Of Grasped Objects By Robotic Hand Using Artificial Neural-Network, Hassan Salman, Mohsin Hamzah, Sadeq Bakhy

Engineering and Technology Journal

The object identification properties with tactile sensing are valuable in  interaction with the environment for both humans and robots, and it is the core of sensing used for exploration and determining properties of objects that are inaccessible from visual perception. Object identification often involves with rigid mechanical grippers, tactile information and intelligent algorithms. This paper proposes a methodology for feature extraction techniques and discriminates objects for different softness using adaptive robotic grippers, which are equipped with force and angle sensors in each four fingers of an underactuated robot hand. Arduino microcontroller and the Matlab program are integrated to acquire sensor …

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Experimental Investigation Of Dimensional Accuracy In Non-Traditional Sheet Metal Spinning Process For Producing Rectangular Spun Part, ِِAmmar Saleh, Aseel Abd, Aqeel Bedan Jul 2026

Experimental Investigation Of Dimensional Accuracy In Non-Traditional Sheet Metal Spinning Process For Producing Rectangular Spun Part, ِِAmmar Saleh, Aseel Abd, Aqeel Bedan

Engineering and Technology Journal

The non-conventional spinning process was adopted for producing polygons, but one of the process limitations is the error between design and the final product especially with no-mandrel. Dimensional accuracy was adopted for this purpose which gives an indicator of the ability of the formed part to matches the design and checking validated of the adopted methodology for producing rectangular cross-section spun parts, by comparing the coordinating points of real part with the points of the design model. The point of a real part was measured by using a sphere probe fixed on the three-axis milling machine and capturing the data …

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An Experimental Investigation Of The Dynamic Effects In Upper Drum Boiler Under Steam Mass Flow Rate Variation, Russul Mohammed, Hashim Hussein, Ali Numan Jul 2026

An Experimental Investigation Of The Dynamic Effects In Upper Drum Boiler Under Steam Mass Flow Rate Variation, Russul Mohammed, Hashim Hussein, Ali Numan

Engineering and Technology Journal

The dynamic effects in the “upper“ drum of the boiler (mechanical’s effects) are very complex problems and critical due to the pressure disturbance in the upper drum of the boiler. This work deals with an experimental investigation of the dynamic behavior of the boiler drum level system is reported from plant data (Al-Quds power plant) in Baghdad / Iraq under a particular condition of operating, and the mathematical equations of the boiler model variables explained and defined. The dynamic effects are investigated with increasing steam mass flow rate (10% and 20%) at the outlet of the boiler. The results showed …

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Utilization Of Satellite Images-Based Indices For Assessment Of Al-Hammar Marsh Restoration Plan, Bayda Dhaidan, Imzahim Alwan, Mahmoud Al-Khafaji Jul 2026

Utilization Of Satellite Images-Based Indices For Assessment Of Al-Hammar Marsh Restoration Plan, Bayda Dhaidan, Imzahim Alwan, Mahmoud Al-Khafaji

Engineering and Technology Journal

Wetland landscape characterization is an important component of determining the degree to which wetlands improve environmental conditions. The present study aims to create a model used to automated extraction of the land cover of the western part of the Al-Hammar Marsh south of Iraq, and then monitor the change in land cover overtime. A model builder in ArcGIS created based on a series of spectral-based indices included the Normalized Difference Vegetation Index (NDVI), the Normalized Difference Moisture Index (NDMI), and the Normalized Difference Water Index (NDWI), the OLI satellite images from 2013 to 2020, ENVI 5.3 and ArcGIS 10.4 were …

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Operation Of Mosul – Dokan Reservoirs And Samarra Barrage Using Hec – Ressim Model During Dry Period, Thabet Abdulateef, Raad Irzooki, Ali Abbas Jul 2026

Operation Of Mosul – Dokan Reservoirs And Samarra Barrage Using Hec – Ressim Model During Dry Period, Thabet Abdulateef, Raad Irzooki, Ali Abbas

Engineering and Technology Journal

The issue of time series records containing low inflow than normal, such critical period results in shortage in reservoir storage, thereby reduction in the reservoir's releases that satisfy the demands. When the expected available water is less than the demand, releases may be curtailed, and the reservoir is under stress. This study presents an application of HEC – ResSim model to simulate the operation of Mosul, Dokan Reservoirs, and Samarra Barrage during the dry period 19992000 (modeling of historical data). Simulated results and recorded data were compared in order to, first improve the applicability of the software to simulate reservoir …

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