Nanotechnology Commons^™

Opportunities And Challenges For Achieving Sustainable Architectural Education In Egypt, In Light Of Universal Design Approach., مي عيد خليل أحمد م/ هناء شعبان حسن

Journal of Engineering Research

الملخص يعتبر التعليم الجامعي هو المفتاح لتغيير الثقافة المهنية في مجالات التصميم، لذا يقع على عاتق المؤسسات التعليمية مسؤولية التعليم والتثقيف للطلاب الجامعيين، حيث يقدم التعليم المعماري حلولاً مجدية للقضايا الدولية الملحة من خلال تحقيق أهداف التنمية المستدامة والتي صاغتها الأمم المتحدة، يمكن التغلب على هذه القضايا من خلال تطبيق مفهوم التصميم العالمي (الشامل) UD والذي يسعي لتبسيط الحياه علي الجميع وتحقيق الوصول والاستخدام اليسير للجميع بغض النظر عن القدرات البدنية والأعمار.

Challenges Of New And Renewable Energy In The Face Of Climate Change: An Introduction To Evaluating The Egyptian Experience, نهي أحمد عبد المنعم السيد, شاهيناز محمد علي طايع Dr, Nevine Gado Dr.

Journal of Engineering Research

أصبحت التغيرات المناخية وما يترتب عليها من المخاطر البيئية قضية من القضايا الحيوية والتي عقدت لها عدة مؤتمرات دولية مثل مؤتمر المناخ العالمي COP 27 والذي استضافته مصر في عام 2023 لوضع الحلول لتلك الأزمة. ومن أجل ذلك أصبح مردود الطاقة الجديدة والمتجددة احدى اليات وادوات التعامل مع هذه القضية الحيوية كبديل مستدام وصديق للبيئة.

The Impact Of Digital Twin On Real Estate Marketing, نوران عاطف محمد غانم Eng, مروة أحمد قمر الدولة أ.د أحمد عبد الوهاب أحمد رزق

Journal of Engineering Research

يتناول هذا البحث أولا الدراسات النظرية الأكثر حداثة التي تناولت تقنية التوأمة الرقمية وعلاقتها بالعقارات وتسويقها ونشأتها ومفهومها ومكوناتها، ثم انتقلنا الي الدراسات المخصصة لاستخداماتها في قطاع العقارات وأهميتها، ومن بعد تناولنا استخدامتها في التسويق العقاري بصفة خاصة من حيث المشاريع والبرامج. ومن ثم وضحنا أهمية تقنية التوأمة وتأثيرها علي التسويق العقاري من حيث العملاء والشركات والأسواق، وبعد ذلك تناولنا تطبيق للتسويق العقاري باستخدام تقنية التوأمة الرقمية علي التخطيط العمراني وكيفية تأثيره علي تسويق المشروع. ومن خلال القيام بدراسة استبيان لقياس أهمية تأثير تقنية التوأمة الرقمية علي أراء العملاء وتفضيلاتهم في اتخاذ القرارات واختيارهم للشركات حين ذاك، وربط تقنية التوأمة …

Sensory Garden Preferences For Autism Spectrum: Insights From Psychologists And Urban Designers, Maram Adel Ebaid

Journal of Engineering Research

Sensory gardens are outdoor environment that stimulate the senses and promote well-being for people with autism spectrum disorder (ASD). In Egypt, there is an absence of gardens, compounded by a limited understanding of the design principles aligned with the needs of people with ASD. The research explores sensory garden features and the specific challenges faced by people with ASD. To bridge this gap, the methodology depends on qualitative approach through interviews with psychology and urban design experts. The results highlight the correlation between prevalent strategies among people with ASD and the elements of sensory gardens, considering both soft and hard …

Incorporation Of Bim Techniques In The Architectural Engineering Curriculum, Ahmed Ahmed M. Saleh, Sherif S. Abdalla

Journal of Engineering Research

In this era, the age of the digital revolution, Egyptian engineering universities and academies compete by integrating new technologies such as building information modeling (BIM) inside the educational curriculum. The research aims to examine and integrate BIM techniques within the course specifications in Egyptian universities and academies, majoring in architectural engineering pathing through the four levels of credit hours system so that, teaching the BIM courses is not limited to one or two only. Furthermore, the current situation of BIM maturity levels, dimensions, and tools implementation in some architecture universities and academies curriculum will be determined and monitored. As a …

Operating Efficiency In Accommodation Units And Its Impact On The Design Of Comprehensive Single Patient Rooms In Hospitals, نهال نبيل محمد مصطفي ، احمد هلال محمد محمد ، نادي مصطفي عبد الكريم

Journal of Engineering Research

هناك الكثير من التحديات التشغيلية والتنظيمية التي تواجهها المجموعات المهنية المختلفة داخل وحدات الإقامة في المستشفيات بسبب عدم كفاية معايير التصميم الموضوعة بالاحتياجات المطلوبة خاصة بغرف المرضي، ومن اهم التحديات التي يواجهها الاطباء وفرق التمريض والفنيين وغيرهم. القدرة السلسة على دخول غرفة المريض والتفاعل مع عناصر الغرفة بشكل واضح دون حدوث تصادمات او احتكاكات، كذلك القدرة علي القيام بالأعمال التحضيرية المتعلقة بالأنشطة التمريضية المطلوبة داخل غرف المرضي وتشمل كافة الأنشطة التي يقوم بها الشخص المهني سواء اكان طبيب ام تمريض ام فني منذ لحظة دخوله غرفة المريض وحتي اداءه المهمة المطلوبة. ويجب ان تتم هذه المهام بشكل مريح وباستجابة سريعة …

Performance And Enhancement Evaluation Of A Solar Still By Using Spraying Technology, Mahmoud Mohamed Dewedar, Yasser A. F. El-Samadony, Alsayed Alsaeed Mohamed, Ahmed Ibrahim Abdo

Journal of Engineering Research

The current experimental investigation uses the water spraying approach to increase the productivity and efficiency of pyramid solar still. The design, construction, and testing of a traditional and modified small-scale pyramid solar still were conducted under identical meteorological conditions as in Tanta City, Egypt (30° 47' N, 31°E). One of the modifications is that heated sheet metal will occasionally be sprayed with salted water. We looked into how the modified solar still's (MPSS) performance characteristics were affected by solar radiation, water depth, and sheet metal-specified temperature. Measurements were made of the saline water temperature, glass temperature, spraying flow rate, and …

Securing Body Area Networks With Fingerprint Cryptography And Authentication In Manet, Alaa M. Elbanaa, Roayat Ismail Abdelfatah, Mohamed E. Nasr

Journal of Engineering Research

Standard MANETs face issues like incorrect transmission and vulnerability to unauthorized node access, posing significant security concerns, especially regarding authentication procedures. To address these challenges, researchers are exploring innovative approaches to enhance authentication mechanisms within MANETs. In this paper, we present a novel solution integrating a Body Area Network (BAN) scheme to capture biomedical data from sensors such as ECG and EEG, facilitating data transmission across MANETs. Furthermore, we employ a hybrid Elgamal algorithm for encrypting biomedical data, bolstered by fingerprint biometrics to fortify the cryptographic process, enhancing network security. Additionally, we conduct comparative analyses, exploring different key sizes and …

A Technical Survey On The Impact Of Exhaust Gas Recirculation And Multifuel Blends On Diesel Engine Performance And Emission Characteristics, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi Prof. Dr. Eng., E. A. El Shenawy Prof. Dr., Mustafa Mohamed Ouda Eng.

Journal of Engineering Research

The increasing demand for fossil fuels poses significant challenges as their reserves gradually deplete over time. Biodiesel is considered one of the most effective alternative fuels to mitigate these issues. Current research focuses on comparing engine performance parameters when blending biodiesel with fossil fuels in Compression Ignition (C.I.) engines. The study demonstrates a comparison of the exhaust emissions produced by biodiesel fuel. In comparison to diesel, biodiesel generally exhibits lower heating value, higher density, increased fuel consumption, and elevated nitrogen oxide levels. To address these challenges, various additives are mixed and blended with biodiesel to meet international fuel standards. These …

Heat And Mass Transfer Characteristics During Vacuum Drying Of Wood, Mohamed Salah Elmetwaly, Lotfy Hassan Rabie Saker, Mohamed Sameh Salem

Journal of Engineering Research

The properties affecting the characteristics of heat and mass transfer during vacuum drying of wood are studied in this paper. The experimental work is carried out in 0.0365 m³ test rig vacuum dryer. The drying chamber dimensions are 0.5 m long and 0.305 m diameter carbon steel cylinder. This drying chamber is internally coated with epoxy paint, also this chamber is detachable closing caps at both ends meaning welded at one end and bolted at the other end to facilitate loading and unloading of the specimen. Two stainless steel heat exchanger plates with dimensions 0.3 m length, 0.15 m …

Prediction Of Noise From A Construction Site, Amira Mostafa Ibrahim Miss, Nashwa Mohamed Yossef Prof, Adel Ibrahim Eldosouky Emeritus Professor

Journal of Engineering Research

Construction activities significantly contribute to environmental noise pollution, affecting workers' health and the surrounding community, posing significant challenges to human well-being and productivity. This paper presents a prediction method and a modelling technique used to assess construction site noise. Various factors influencing noise generation and propagation, such as equipment types, operational conditions, site characteristics, and environmental factors, are discussed. This paper explores the application of Monte Carlo technique as an effective method for predicting construction site noise and planning noise mitigation strategies.

Numerical Investigation Of Liquefaction Mitigation In-Sandy Soils Under Earthquake Loading Using Vertical Gravel Drains., Marawan M. Shahien M. Shahein, Ahmed Nasr, Baher Mohamed Abd El Fattah

Journal of Engineering Research

Liquefaction is one of the most dramatic defects of granular soil. This phenomenon is mostly observed when loose sand is subjected to a dynamic load or earthquake. In this study, the liquefaction that affected the loose soil evaluated, and some recommendations are introduced. (2-D) Numerical analysis using Plaxis (8.2) was conducted to simulate the behavior of the loose soil under dynamic loads. The studied model was carried out on multi-layers soil supported by stone columns subjected to dynamic loads. It was found that stone columns enhanced the soil behavior and reduced the damage that occurred. Liquefaction of the loose soil …

Chemical Kinetic Investigation: Exploring The Impact Of Various Concentrations Of Hho Gas With A 40% Biodiesel/Diesel Blend On Hcci Combustion, Mai H. Aboubakr, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi, Ayman Refat Abd Elbar

Journal of Engineering Research

This study uses the Chemkin software program to evaluate the effect of different quantities of oxyhydrogen gas [HHO] added to 40% biodiesel and diesel mix [B40], including B40, B40+5HHO, B40+10HHO, and B40+15HHO, on the HCCI combustion process's efficiency. The information collected includes cylinder pressure, cylinder temperature, accumulated gas phase heat release, heat loss rate, UHC, and mole fractions of O2, CO, CO2, diesel [NC7H16], biodiesel [C5H10O2], and oxyhydrogen [H2O]. The finding is that, when compared to a blend of biodiesel and diesel, using oxyhydrogen in the biodiesel/diesel mix boosts the properties of the HCCI engine.

Exploring The Influence Of Various Factors, Including Initial Temperatures, Equivalence Ratios, And Different Biodiesel/Diesel Blend Ratios, On Homogeneous Charge Compression Ignition (Hcci) Combustion, Mai H. Aboubakr, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi, Ayman Refat Abd Elbar

Journal of Engineering Research

This paper discusses the impact of three study cases that change with different values: the first case is four initial temperature values [313, 323, 333, and 343 K], the second case is three equivalence ratios [0.2, 0.3, and 0.4], and the third case uses various concentrations of biodiesel and diesel mixes [D100, B20, B40, B60, B80, and B100]. The purpose is to use the Chemkin software program to determine the effectiveness of each case in the HCCI combustion process. The results included cylinder pressure, cylinder temperature, accumulated gas phase heat release, heat loss rate, UHC, and mole fractions of O …

Survey And Analysis Of Safety Components And Costs In Construction Projects In Egypt, Emad E. Etman Prof., Haytham Sanad Prof., Asmaa Ibrahim Khater

Journal of Engineering Research

The difficulty of determining the factors that achieve safety on Egyptian construction sites as a result of multiple and different criteria and different relative weights of the criteria represents a challenge to achieve safety and a secure environment on construction sites. This issue has been of interest for many decades and continues to be a topic of discussion today because of construction project management is rapidly modernizing. The paper aims to identify the safety standards most commonly used on construction sites, and determine their relative weights as seen by the target audience and also estimate the cost of safety measures …

Enhancing Decision In Information System Through Weighted Preliminary Pretopology Analysis, Mustafa Elsayed, Rifet Agassi

Journal of Engineering Research

It is clear from adequate study of the past decades that there has been rapid growth in the information system, which relies mainly on programming systems. This has led to the necessity of dealing with high efficiency with the information system necessary for decision support. Information systems are a mixture of software and hardware to store and process all the data required and are presented in a useful form to extract information by applying topological concepts. In this paper a pretopological space from an information system is to be constructed. The computation of decision accuracy stands as a pivotal stage …

تحسين كفاءه التوازن الحرارى لمستخدمى الفراغات السكنيه, Alamera Kamal Elden Elfeky, Elamira Elfeky, Walaa Ahmed Nour, Lobna Abdallah Agha

Journal of Engineering Research

human belonging to nature Considered innate, and known as Biophilie, it has direct and strong relation with human heath and his welfare which affected by quality of internal environment where we Live and work as we spend most of our time in this environment. Biophelic design Aim to improve heath and welfare of human. natural. and reconnect him with his natural environment beside achieving the aesthetic aspect of his place.

in our present time, gap appeared in relation between human and environment as a result of modern design solution, as it has negative effect on human heath and safety, to …

Towards Environmentally Sustainable Preservation Of Heritage Buildings, Rozal Rozal Yousef Hanna1, Ayman Gamal El-Din Abd El- Tawab2, Walaa Abou El- Haggag Mehanna3

Journal of Engineering Research

The construction industry, characterized by its intricate processes and extensive stakeholder networks, stands at the cusp of a digital revolution. The adoption of blockchain-smart contract (BCSC) technology is at the heart of this transformation. This research delves deep into the BCSC within the construction arena to provide comprehensive insight into its probable applications, inherent challenges, and potential future trajectories. Leveraging the PRISMA analysis technique, a curated collection of relevant academic research articles was assembled, shedding light on the existing body of knowledge regarding the application of BCSC technology in construction. The authors developed an innovative user interface tool customized to …

Review: Protection Of Wooden Structures With Nano-Titanium Dioxide Coating, Zienab Zienab A. Ahmed1*, And M. M. Mosallem2

Journal of Engineering Research

Wood is widely used for various purposes with good performance. Wood works as the main material for furniture, monuments, decorations and constructions. which has the close relationship with human. Durability of wood is important in ensuring an appropriate life for the structure being designed. Wooden construction deteriorates easily due to UV radiation and weather conditions. Many of wood types need a preservative treatment. Several compounds are available for chemical protection, but not all are completely safe for human health. New technologies with low environmental impact and economically feasible are developed, which improves the life cycle of wood. Titanium dioxide is …

Urbanism Strategies For Linking Existing And New Cities, Naglaa J. Q. Mo’Men Abdel-Qader Ebrahim1, Mohsen Bayad2

Journal of Engineering Research

New cities, designed for urban growth outside existing metropolitan regions, face challenges in street infrastructure due to rapid expansion. Efficient control of mobility is crucial as cities grow. Sustainable transportation involves factors like infrastructure, public transit, delivery networks, affordability, efficiency, air quality, health, and reduced emissions. Commuting between established and new urban areas is common, leading to issues like urban sprawl, longer travel times, and congestion in developing countries. The challenge is to improve accessibility while addressing air quality, traffic, congestion, noise, built environment, emissions, and sprawl. This study aims to explore factors influencing mobility choices in Egypt, focusing on …