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Worksheets Development Context-Based Upcycling Waste And Ecoprint To Improve Mental Retardation Student's Mathematical Proficiency Skills, Oktiani Mersiliana, Andriyani Andriyani Jan 2025

Worksheets Development Context-Based Upcycling Waste And Ecoprint To Improve Mental Retardation Student's Mathematical Proficiency Skills, Oktiani Mersiliana, Andriyani Andriyani

Journal of ICSAR

This study aims to develop geometry worksheets with the context of upcycling inorganic waste with ecoprint that meet the criteria of validity, practicality, and effectiveness to improve the mathematical proficiency abilities mathematical proficiency skill of mentally retardation students. This study uses the R&D type with the ADDIE (Analyze, Design, Development, Implementation, Evaluation) development model. The subjects in this study were mentally retarded students at one of the special education schools in Berbah sub-district, Sleman Regency, Yogyakarta. The instruments used in this study were validation instruments, student responses, mathematical proficiency tests, and observation and interview guidelines. Based on the validity test, …

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A Small-Scale Comparative Study Inclusive Elementary School In Japan And Indonesia, Khoiri Nugraheni, Shinzo Isawa Jan 2025

A Small-Scale Comparative Study Inclusive Elementary School In Japan And Indonesia, Khoiri Nugraheni, Shinzo Isawa

Journal of ICSAR

This research examines the implementation of inclusive education services in elementary schools in Japan and Indonesia using an extended case study method. Data were collected through policy analysis, in-depth interviews with school leaders, and classroom observations, then analyzed using thematic analysis to identify key patterns. Results reveals that school leadership and management play a crucial role in sustaining inclusive education implementation. In both coutries school leaders leverage their knowledge of inclusive education policies, special needs education, teacher training support, and school management to ensure effectivity of implementation. This study highlights the importance of leadership-driven policies and professional development in strengthening …

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Jordanian Women's Perception Of The Discrepancy Between Education And Access To Labor Market, Rana El Khawand Jan 2025

Jordanian Women's Perception Of The Discrepancy Between Education And Access To Labor Market, Rana El Khawand

Walden Dissertations and Doctoral Studies

This study is an examination of the perceptions of educated Jordanian women regarding the gap between their high educational attainment and limited access to the labor market, focusing on systemic sociocultural, institutional, and economic barriers. Targeting women in science, technology, engineering, and mathematics (STEM) fields, the study was conducted using a feminist theoretical framework emphasizing societal norms, power imbalances, and institutional inequities as critical factors shaping women’s professional experiences. A generic qualitative design was employed, collecting data through semistructured interviews and SenseMaker narratives from four faculty members at a Jordanian university. Thematic coding, discourse analysis, and sentiment analysis were used …

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Exploring School Leaders’ Experiences Allocating Financial Resources To Support Technology Integration Learning, Joshua Armstrong Jan 2025

Exploring School Leaders’ Experiences Allocating Financial Resources To Support Technology Integration Learning, Joshua Armstrong

Walden Dissertations and Doctoral Studies

America's local education agencies (LEAs) often struggle with technology integration learning (TIL). There is a lack of understanding about how leadership is planning and financially managing the allocation of budgeted dollars to support TIL. The purpose of this phenomenological study was to explore the lived experiences of public school leaders involved with financial management and the planning of resources to support TIL. Mishra’s and Koehler’s technological, pedagogical, and content knowledge framework grounded this study on how leadership planning and financial management affect teachers’ technological skills and professional development when incorporating TIL in public schools. Data were collected through 11 semistructured …

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Hydrogen Diffusion Into Water And Cushion Gases – Relevance For Hydrogen Geo-Storage, Quoc Truc Doan, Alireza Keshavarz, Peter Behrenbruch, Stefan Iglauer Jan 2025

Hydrogen Diffusion Into Water And Cushion Gases – Relevance For Hydrogen Geo-Storage, Quoc Truc Doan, Alireza Keshavarz, Peter Behrenbruch, Stefan Iglauer

Research outputs 2022 to 2026

Hydrogen (H2) has been recognized as a promising solution to reduce carbon dioxide (CO2) emissions. H2 is considered a green energy carrier for energy storage, transport, and usage, and it can be produced from renewable energy resources (such as solar, hydropower, and wind energy). However, H2 is a highly diffusive compound compared to other natural gases, raising concerns about the possibility of H2 loss in geo-storage (e.g. in underground geological formations such as depleted oil/gas reservoirs, aquifers or shale formations) or H2 leak via pipelines when blending H2 with natural gas in existing pipeline systems. Thus, understanding H2 diffusion in …

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Current Debates & Teacher Reflections On Critical Race Theory In The United States, Caterina B. Azzarello, Ashlee Kemp, Kevin Pugh Jan 2025

Current Debates & Teacher Reflections On Critical Race Theory In The United States, Caterina B. Azzarello, Ashlee Kemp, Kevin Pugh

Journal of Educational Research and Innovation

This study examines teachers' beliefs about Critical Race Theory (CRT) in the U.S. educational system. Given the controversy surrounding CRT, understanding these beliefs is crucial for informing professional development, curriculum design, and instructional strategies. The study employed an online survey to assess over sixty U.S. preservice and current teachers' knowledge and perceived importance of CRT. Results indicated moderate awareness and importance of CRT among participants, with significant variability. Newer teachers tended to have higher CRT knowledge, likely due to recent emphasis on diversity in teacher training programs. However, years of teaching experience did not predict the perceived importance of CRT. …

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Counting Rotational Subsets Of The Circle $\Mathbb{R}/ \Mathbb{Z}$ Under The Angle-Multiplying Map $T\Mapsto Dt$, Ian Tan Jan 2025

Counting Rotational Subsets Of The Circle $\Mathbb{R}/ \Mathbb{Z}$ Under The Angle-Multiplying Map $T\Mapsto Dt$, Ian Tan

Rose-Hulman Undergraduate Mathematics Journal

A rotational set is a finite subset $A$ of the unit circle $\mathbb{R}/ \mathbb{Z}$ such that the angle-multiplying map $\sigma_{d}:t\mapsto dt$ maps $A$ onto itself by a cyclic permutation of its elements. Each rotational set has a geometric rotation number $p/q$. Lisa Goldberg introduced these sets to study the dynamics of complex polynomial maps. In this paper, we provide a necessary and sufficient condition for a set to be $\sigma_{d}$-rotational with rotation number $p/q$. As applications of our condition, we recover two classical results and enumerate $\sigma_d$-rotational sets with rotation number $p/q$ that consist of a given number of orbits.

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Met 237-002: Strength Of Materials For Technology, Arijit Sengupta Jan 2025

Met 237-002: Strength Of Materials For Technology, Arijit Sengupta

School of Applied Engineering and Technology Syllabi

No abstract provided.

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Physical Hydrology By S. Lawrence Ding-Man, Patricia J. Beyer Jan 2025

Physical Hydrology By S. Lawrence Ding-Man, Patricia J. Beyer

The Geographical Bulletin

As the public eye increasingly focuses on issues related to the use and quality of water, the science of hydrology expands from its position as an academic and engineering endeavor to one of prominance in people's everyday lives. With this expansion comes the need for education, not only for hydrologists and geomorphologists, but for biologists, botanists, earth scientists, climatologists, land managers, developers and policy makers. Water is a fascinating and complex substance: not only is water itself a resource, but it is also a main pathway for energy and chemical transfer in the Earth-atmosphere system.

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The Geography Of South Dakota. Edward By P. Hogan, Donald J. Berg Jan 2025

The Geography Of South Dakota. Edward By P. Hogan, Donald J. Berg

The Geographical Bulletin

Edward P. Hogan has done a considerable service for the people of South Dakota through writing The Geography of South Dakota, the first such volume in 78 years. It is a book that was long overdue, but such a project also needs the right person at the right place and the right time to author it.

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Contemporary Europe: A Geographic Analysis. (7th Edition) By William H. Berent-Sen, Editor, Wendy Shaw Jan 2025

Contemporary Europe: A Geographic Analysis. (7th Edition) By William H. Berent-Sen, Editor, Wendy Shaw

The Geographical Bulletin

Europe is a continent characterized by great complexity both physically and culturally. It is a fascinating place steeped in history yet seemingly in a state of con - stant flux. The region provides a challenge to authors who endeavor to present a comprehensive view of Europe. This book targets students in introductory col - lege courses and focuses on contemporary Europe. Each chapter has a different author, writing style, approach, and struc - ture that reflects that author's area of in - terest and expertise. Chapters are in - cluded that are topically focused such as those on population and …

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Feasibility Study For Providing Remedial Measures For Overburden Dump In New Majri Ug To Oc Mine, Wcl Majri Area, Warora, Chandrapur, Himanshu Kumar Jangir, Rahul Shende, Omkar Navagire, Srinivasan Venkatraman, Anirban Mandal, Anjan Patel Jan 2025

Feasibility Study For Providing Remedial Measures For Overburden Dump In New Majri Ug To Oc Mine, Wcl Majri Area, Warora, Chandrapur, Himanshu Kumar Jangir, Rahul Shende, Omkar Navagire, Srinivasan Venkatraman, Anirban Mandal, Anjan Patel

Journal of Sustainable Mining

The central region of India is abundant in fertile black cotton soil, and the presence of such weak floors in open-cast mines poses significant slope stability concerns for overburden (OB) dumps. Addressing these issues is crucial for ensuring safe mining operations and cost-effectiveness. Several coal mines in this region have experienced overburden dump collapses due to the weak soil foundation. To enhance slope stability and mitigate the heaving effect near the toe of the dump, this study proposes parametric research that explores the flattening of the overall slope angle of the dump, bench angle optimization, and various feasible dimensions for …

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Enhancing Smartphone Authentication By Integrating Decision-Making Model With Touch Pressure, Finger Location Data, And Advanced Cybersecurity Techniques, Maytham M. Hamood, Moceheb Lazam Shuwandy, Rawan Adel Fawzi Alsharida Jan 2025

Enhancing Smartphone Authentication By Integrating Decision-Making Model With Touch Pressure, Finger Location Data, And Advanced Cybersecurity Techniques, Maytham M. Hamood, Moceheb Lazam Shuwandy, Rawan Adel Fawzi Alsharida

Iraqi Journal for Computer Science and Mathematics

Smartphone authentication methods face significant challenges in achieving high accuracy, robustness, and usability within cybersecurity applications. Traditional methods, such as passwords and biometric recognition, often lack adaptability and are prone to high false-positive rates, impacting security and user acceptance. This study presents a novel hybrid approach incorporating machine learning (ML) and the Analytic Hierarchy Process (AHP) in a framework to facilitate decision-making abilities and improve smartphone authentication. A novel dataset was constructed based on 3D touch sensor data (pressure levels and spatial dynamics) collected from 20 participants performing tasks per task over sessions, where AHP was used to rank/choose relevant …

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Met 236-104 Dynamics For Technology, Minas Botros Jan 2025

Met 236-104 Dynamics For Technology, Minas Botros

School of Applied Engineering and Technology Syllabi

No abstract provided.

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Endowment To Help Fund Experiential Learning For Education Majors, Bill Dabney Jan 2025

Endowment To Help Fund Experiential Learning For Education Majors, Bill Dabney

University of Mississippi News

OXFORD, Miss. – When University of Mississippi education majors have opportunities to travel for field trips, Renee Hill-Cunningham wants to make sure there's no student left behind.

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Cross-Domain Transfer Learning For Domain Adaptation In Autism Spectrum Disorder Diagnosis, Kush Gupta, Amir Aly, Emmanuel Ifeachor Jan 2025

Cross-Domain Transfer Learning For Domain Adaptation In Autism Spectrum Disorder Diagnosis, Kush Gupta, Amir Aly, Emmanuel Ifeachor

School of Engineering, Computing and Mathematics

A cross-domain transfer learning approach is introduced to address the challenges of diagnosing individuals with Autism Spectrum Disorder (ASD) using small-scale fMRI datasets. Vision Transformer (ViT) and TinyViT models pre-trained on the ImageNet, were employed to transfer knowledge from the natural image domain to the brain imaging domain. The models were fine-tuned on ABIDE and CMI-HBN, using a teacher student framework with knowledge distillation loss. Experimental results demonstrated that our method outperformed previous studies, ViT models, and CNN-based models. Our approach achieved competitive performance (F-1 score 78.72%) with a much smaller parameter size. This study highlights the effectiveness of cross-domain …

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Acquiring Ethical Ai, David S. Rubenstein Jan 2025

Acquiring Ethical Ai, David S. Rubenstein

Florida Law Review

Artificial intelligence (AI) is transforming how the federal government operates. Under the right conditions, AI systems can solve complex problems, reduce administrative burdens, improve human decisions, and optimize resources. Under the wrong conditions, AI systems can lead to widespread discrimination, invasions of privacy, and the erosion of democratic norms. A burgeoning literature has emerged to square algorithmic governance with the precepts of constitutional and administrative law. Federal procurement law, however, remains a dangerous blind spot in the reformist agenda. This Article pivots into that neglected space and emerges with comprehensive framework for acquiring ethical AI. Toward that end, the Article …

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Optimization Of The Cross-Section Of Generic Flexible Bridges, Manal Kamal Zaki, Mina M. Helmy, Mark M. Tawadros Jan 2025

Optimization Of The Cross-Section Of Generic Flexible Bridges, Manal Kamal Zaki, Mina M. Helmy, Mark M. Tawadros

Journal of Engineering Research

This paper investigates the behavior of flexible bridges prone to aerodynamic instabilities due to wind. Optimal cross-sections that reduce aerodynamic forces are recommended. This is achieved by studying a variety of bridge sections with different widths of upper and lower sloping edges in addition to studying the upper and lower cramps of the deck. The wind velocities are also parameterized. Computations are developed based on the powerful computational fluid dynamics (CFD) method known as FLUENT and embedded in ANSYS software. For parametric study, a design of experiments (DOE) is performed based on the response surface methodology (RSM) combined with the …

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Enhancing Efficiency In Cyclone Separators: Insights From Triangular Finned Structures And Fluid Dynamics Analysis, Ibrahim M. Mohamed, Yasser El-Shaer, Khairy Elsayed, Mohamed Aly Ibrahim Jan 2025

Enhancing Efficiency In Cyclone Separators: Insights From Triangular Finned Structures And Fluid Dynamics Analysis, Ibrahim M. Mohamed, Yasser El-Shaer, Khairy Elsayed, Mohamed Aly Ibrahim

Journal of Engineering Research

Cyclone separators play a pivotal role in removing particulate matter from gas streams. These elegant devices find applications across diverse industries, including cement production, petroleum refineries, and food processing. This computational study focuses on the effects of adding fined surfaces to the cylindrical part of cyclone separators on the flow field and the performance parameters. Different fins are used at different depths, namely, 0.004 m, 0.008 m, 0.01 m, different pitches, namely, 0.025 m, 0.04 m, 0.05 m and different helix lengths, namely, 0.2 m, 0.25 m, 0.3 m. The results indicated that optimal fin adhesion reduces the pressure drop, …

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Simultaneous Optimal Sizing And Placement Of Electrical Vehicles Charging Stations And Distributed Generation Units In Electrical Distribution Networks Using Abc Technique, Abdelazim M. Salem Dr., Nora M. El-Ayaat, Ismail M. Hafez Prof., Adel Abou El Ela Prof. Jan 2025

Simultaneous Optimal Sizing And Placement Of Electrical Vehicles Charging Stations And Distributed Generation Units In Electrical Distribution Networks Using Abc Technique, Abdelazim M. Salem Dr., Nora M. El-Ayaat, Ismail M. Hafez Prof., Adel Abou El Ela Prof.

Journal of Engineering Research

The continuous increment in the utilization of electric vehicles (EV’s) that represent new loads on the electrical distribution networks. The distributed generators (DG’s) have been used in the distribution networks as renewable energy sources (RES) with the main electrical distribution network for supplying significant amount of the total connected loads. The using of DG’s lead to reduce the electrical active power losses and improving the voltage profile on the distribution network. A well-planned and efficient EV’s charging infrastructure is required for effective electric mobility. This paper presents a planning study for supplying up to four EVCS’s, each one increases the …

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Dwellings Occupant Behaviour And Electric Heating Consumption: Sensitivity Analysis And Potential Savings, Youssef Elkhayat Jan 2025

Dwellings Occupant Behaviour And Electric Heating Consumption: Sensitivity Analysis And Potential Savings, Youssef Elkhayat

Journal of Engineering Research

A building's heating consumption is affected by a lot of things, including the weather, the building's envelope, and the heating system. Furthermore, a crucial component impacting dwelling electrical consumption is the behaviour of occupants. Analysing the impact of occupant behaviour on electric heating consumption in dwellings located in temperate oceanic climates is the focus of this study. By surveying the existing literature on the topics of building energy simulation and occupant behaviour, this study was able to determine the strengths and weaknesses of earlier investigations, as well as the research technique. A case study of a semi-detached house in Galway, …

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Using Nanotechnology To Achieve Sustainability In Interior Residential Spaces, Neveen Youssef Azmy, Esraa Tarek Abu-El Azm, Ahmed Ahmed Rizk, Walaa Abou El-Haggag Mehanna Jan 2025

Using Nanotechnology To Achieve Sustainability In Interior Residential Spaces, Neveen Youssef Azmy, Esraa Tarek Abu-El Azm, Ahmed Ahmed Rizk, Walaa Abou El-Haggag Mehanna

Journal of Engineering Research

Major scientific and technological developments characterize the present time. One notable achievement is the nano revolution, which has greatly influenced various areas of life Nanotechnology is characterized by using very small particles of materials, either alone or by processing them to create new materials with remarkable properties. Hence, nanotechnology offers promising economic solutions and products to achieve a reliable and sustainable environment. Architecture has great potential to benefit from this technology to achieve sustainability and improve indoor environment quality. Given the proliferation of residential buildings in urban areas, where people spend most of their time, it is necessary to integrate …

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Evaluating Lidar Technology In Iphone Mobiles For 2d Mapping Applications, Nasr Mohammady Saba, Salem Salama Saleh Jan 2025

Evaluating Lidar Technology In Iphone Mobiles For 2d Mapping Applications, Nasr Mohammady Saba, Salem Salama Saleh

Journal of Engineering Research

Abstract- LiDAR (Light Detection and Ranging) technology has revolutionized mapping applications, offering enhanced precision and accuracy in spatial data collection. The integration of LiDAR technology in the latest iPhone models, beginning with the iPhone 12 Pro, has introduced new capabilities for 2D data measurement and plan creation directly on the mobile device. The iPhone 12 Pro and 12 Pro Max models support LiDAR techniques within their mobile phone cameras, enhancing the performance of various applications such as Measurements and Photos. LiDAR operates by emitting pulsed light waves into the surrounding space, which bounce off nearby objects and return to the …

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Experimental And Numerical Investigation For Optimum Design Of Hydraulic Steel Gates, Basma Hassan Mohamed Eng, Ahmed Mohamed Anwer Dr, Hanan Eltobgy Prof., Gamal Helmy El-Saeed Prof Jan 2025

Experimental And Numerical Investigation For Optimum Design Of Hydraulic Steel Gates, Basma Hassan Mohamed Eng, Ahmed Mohamed Anwer Dr, Hanan Eltobgy Prof., Gamal Helmy El-Saeed Prof

Journal of Engineering Research

Conventionally, steel gates are widely used in hydraulic structures for their superior mechanical properties in sustaining hydrostatic pressure. Maintenance and operational costs should be considered while studying the feasibility of these gates. In the current research, three prototype steel gates with different configurations were prepared and examined experimentally. The three gates have the same surface dimensions of (width x height) equal to (1.0 x 1.25 m). The first steel gate represents a typical traditional gate made of skin plate and stiffened laterally using standard steel channels and will be kept for comparison. The second gate represents a standard thicker plate …

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Performance And Emissions Characteristics Of Multi-Cylinder Direct Injection Diesel Engine Fuelled With Diesel/Biodiesel And Toluene Additives, Hagar Alm-Eldin Bastawissi, Medhat Elkelawy Prof. Dr. Eng., Mohammed Osama Elsamadony Dr. Eng., Moustafa Ghazaly Eng. Jan 2025

Performance And Emissions Characteristics Of Multi-Cylinder Direct Injection Diesel Engine Fuelled With Diesel/Biodiesel And Toluene Additives, Hagar Alm-Eldin Bastawissi, Medhat Elkelawy Prof. Dr. Eng., Mohammed Osama Elsamadony Dr. Eng., Moustafa Ghazaly Eng.

Journal of Engineering Research

This study explores the impact of using a diesel, biodiesel, and toluene additive fuel blend in a multi-cylinder direct injection diesel engine, focusing on both performance and emissions characteristics. Biodiesel, made from renewable sources like vegetable oils, is often added to diesel to reduce reliance on fossil fuels and improve combustion due to its higher oxygen content. In this work, a 45% biodiesel blend (B45) led to significant reductions in particulate matter (PM) emissions by up to 40% compared to conventional diesel. Additionally, carbon monoxide (CO) and hydrocarbon (HC) emissions decreased by up to 30% and 25%, respectively, due to …

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Effect Of Dual-Fuelled Cng And Gasoline On Spark Ignition Engine Performance And Emissions Behaviors At Different Loads, Medhat Elkelawy Prof. Dr, Eng., M.M. Bassuoni Prof. Dr., Hagar Alm-Eldin Bastawissi, Saied I. Haiba Eng. Jan 2025

Effect Of Dual-Fuelled Cng And Gasoline On Spark Ignition Engine Performance And Emissions Behaviors At Different Loads, Medhat Elkelawy Prof. Dr, Eng., M.M. Bassuoni Prof. Dr., Hagar Alm-Eldin Bastawissi, Saied I. Haiba Eng.

Journal of Engineering Research

Engine emissions are one of numerous factors that have detrimentally affected the environment, such as global warming, which is the result of growing exhaust gases, practically carbon dioxide (CO2). These emissions have substantially influenced researchers to develop strategic initiatives to minimize the carbon contents of fuels. The purpose of this research is to investigate the characteristics of internal combustion (SI) engines fueled by gasoline and compressed natural gas (CNG) blends. The experiments are performed using a HONDA 4-stroke, single-cylinder, and air-cooled SI engine. Five CNG concentrations are evaluated, the concentrations range from 0.5 to 2.5 L/min with a 0.5 L/min …

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A Quantitative Analysis Of The Commercial-Additive Effects On Diesel Engine Combustion And Emissions Characteristics, Medhat Elkelawy Prof. Dr. Eng., Hagar Alm-Eldin Bastawissi Prof. Dr. Eng., E. A. El Shenawy Prof. Dr., Mahmoud Mohamed Soliman Mahmoud Mohamed Mahmoud Soliman Jan 2025

A Quantitative Analysis Of The Commercial-Additive Effects On Diesel Engine Combustion And Emissions Characteristics, Medhat Elkelawy Prof. Dr. Eng., Hagar Alm-Eldin Bastawissi Prof. Dr. Eng., E. A. El Shenawy Prof. Dr., Mahmoud Mohamed Soliman Mahmoud Mohamed Mahmoud Soliman

Journal of Engineering Research

Petroleum fuel prices fluctuate in response to global political and economic issues. Government regulations should be followed when it comes to engine emissions, as these dangerous pollutants have a negative impact on the environment. One such effect is global warming, which raises global temperatures. The purpose of this study is to develop the additives for use as a fuel mix with diesel fuel, which will be used to feed the diesel engine of a single cylinder, four strokes. The engine will be tested experimentally with varying loads at fixed speed of 1500 rpm, using blends of [(5% PRETSONE additive + …

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Design And Implementation Of A Low-Cost Educa-Tional Robot For Engineering Curriculums, Diana Refaat Henry Jacob, Ashraf Mohamed Hafez, Mohamed Tarek Elawa Jan 2025

Design And Implementation Of A Low-Cost Educa-Tional Robot For Engineering Curriculums, Diana Refaat Henry Jacob, Ashraf Mohamed Hafez, Mohamed Tarek Elawa

Journal of Engineering Research

The role of educational robots is becoming increasingly important. Many commercial educational robots differ in their abilities and price. In general, the cost of these robots presents the main cause of their limited use in the teaching process, especially in countries with limited financial resources. This work attempts to solve this problem by designing and implementing an educational robot with a limited budget. The robot was initially intended to serve higher education students' needs, especially in engineering curriculums but can be extended to other application areas. This work presents robot hardware functional blocks, mechanical struc-ture design, and 3D printing implementation. …

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The Design Studio Dilemma The “Slicing Method”, Yasser Osman El Gammal Associate Professor Dr. Jan 2025

The Design Studio Dilemma The “Slicing Method”, Yasser Osman El Gammal Associate Professor Dr.

Journal of Engineering Research

The design studio presents a multifaceted challenge due to the absence of a direct teaching approach, relying heavily on the teacher's expertise, design acumen, and pace. Furthermore, much of the existing literature on design studio methods tends to be philosophical or opinion-based, lacking practical solutions for ongoing challenges in this domain. While it's easy for scholars to theorize, offering comprehensive procedures to address design studio issues proves considerably more difficult. There's no unanimous agreement on the topic; most design studio models are based on individual opinions as scholars and practitioners view the topic from different angles, developing their own perspectives. …

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A Greening The Diesel: Vegetable Oil Biodiesel Blends For Cleaner Emissions And Improved Direct Injection Diesel Engine Performance, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi, E. A. El Shenawy Prof. Dr., Mustafa Mohamed Ouda Jan 2025

A Greening The Diesel: Vegetable Oil Biodiesel Blends For Cleaner Emissions And Improved Direct Injection Diesel Engine Performance, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi, E. A. El Shenawy Prof. Dr., Mustafa Mohamed Ouda

Journal of Engineering Research

In this study, we conducted comprehensive experiments to assess and compare the performance of pure diesel fuel against biodiesel produced from corn oil in various blend ratios (15/85, 30/70, 45/55, and 60/40) in a conventional four-stroke, direct-injection diesel engine, fuel is injected directly into the combustion chamber at the end of the compression stroke, allowing for efficient combustion and power generation over four distinct phases: intake, compression, power, and exhaust. Each fuel blend was tested at an engine speed of 16,000 rpm across different load conditions (low, medium, and high). Key performance metrics, including volumetric fuel consumption, exhaust smoke, and …

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