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Articles 1591 - 1620 of 302419

Full-Text Articles in Physical Sciences and Mathematics

Simulation System For Carrier-Based Aircraft Ammunition Support Scheduling, Zhe Liu, Jiafeng Chen, Junfei Ma, Songhua Ma Jul 2024

Simulation System For Carrier-Based Aircraft Ammunition Support Scheduling, Zhe Liu, Jiafeng Chen, Junfei Ma, Songhua Ma

Journal of System Simulation

Abstract: For inefficient scheduling of carrier-based aircraft ammunition support on the flight deck of aircraft carriers, a Unity3D-based 3D virtual demonstration method for carrier-based aircraft ammunition scheduling is proposed, and a 3D virtual simulation system for carrier-based aircraft ammunition scheduling on the flight deck of aircraft carriers is constructed. A problem model targeted at carrierbased aircraft ammunition transportation and loading scheduling process as well as processing rules for path determination, sequence constraint, and loading position compensation are established based on the defining system. An optimal solution for the scheduling process is realized by using the improved discrete grey wolf optimizer …

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Simulation Optimization Of Airport Baggage Import System Based On Multi-Objective Wolf Pack Algorithm, Yifei Tao, Xiaopeng Ding, Junbin Luo, Xiao Fu, Jiaxing Wu, Yirong Li Jul 2024

Simulation Optimization Of Airport Baggage Import System Based On Multi-Objective Wolf Pack Algorithm, Yifei Tao, Xiaopeng Ding, Junbin Luo, Xiao Fu, Jiaxing Wu, Yirong Li

Journal of System Simulation

Abstract: Aiming at the problems of long waiting time for passenger baggage import and high system energy consumption during the operation of the baggage import system in civil aviation airports, a simulation optimization framework for solving this problem is proposed by comprehensively considering the influence of key control parameters on the operation efficiency of the baggage import system in airports, including the virtual window control mode, the operation speed of the collection belt conveyor, the length of the virtual window and the number of check-in counters opened at the same time. By analyzing the actual operating conditions of the airport …

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Task Analysis Methods Based On Deep Reinforcement Learning, Xue Gong, Pengfei Peng, Li Rong, Yalian Zheng, Jun Jiang Jul 2024

Task Analysis Methods Based On Deep Reinforcement Learning, Xue Gong, Pengfei Peng, Li Rong, Yalian Zheng, Jun Jiang

Journal of System Simulation

Abstract: In response to the high coupling of task interaction and many influencing factors in task analysis, a task analysis method based on sequence decoupling and deep reinforcement learning (DRL) is proposed, which can achieve task decomposition and task sequence reconstruction under complex constraints. The method designs an environment for deep reinforcement learning based on task information interaction, while improving the SumTree algorithm based on the difference between the loss functions of the target network and the evaluation network, achieving the priority evaluation among tasks. The activation function operation mechanism is introduced into the deep reinforcement learning network, followed by …

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Modeling And Verification Of Cooperative Vehicle Infrastructure System At Unsignalized Intersection Based On Time Automata, Wei Liu, Qirui Xiao, Xinhai Chen, Chang Rao, Yu Zhang, Bosi Wang Jul 2024

Modeling And Verification Of Cooperative Vehicle Infrastructure System At Unsignalized Intersection Based On Time Automata, Wei Liu, Qirui Xiao, Xinhai Chen, Chang Rao, Yu Zhang, Bosi Wang

Journal of System Simulation

Abstract: Cooperative vehicle infrastructure system (CVIS) is one of the advanced solutions to enhance intersection vehicle passage safety. Due to the lack of clear specifications and standards regarding the dynamic timing and transition processes of system object state interaction in existing CVIS technologies, ensuring the safety of passage control logic is challenging. This study utilizes formal language to describe the functional logic of CVIS in unsignalized intersections, verifying the safety of system object state interaction and control logic to improve vehicle passage safety at unsignalized intersections. Simulations are conducted for scenarios including single-vehicle non-conflict, dual-vehicle conflict, and multi-vehicle conflict to …

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Digital Application Of Equipment System Test And Evaluation Based On Digital Twin And Parallel Experiment Theory, Hongjie Dang, Wenguang Yu, Huahui Yang Jul 2024

Digital Application Of Equipment System Test And Evaluation Based On Digital Twin And Parallel Experiment Theory, Hongjie Dang, Wenguang Yu, Huahui Yang

Journal of System Simulation

Abstract: With the development of equipment systematization, traditional test with real equipment can not meet the requirements of Test and Evaluation(T&E), especially for complex equipment. As the main digital methods in current, digital twins and parallel experiments can support the digital application in the field of equipment Test and Evaluation. This paper makes a comparative analysis of the two digital technology means, extracts their technical connotation and characteristics, and then integrates them to explore the application mode, application time and application occasions in the field of equipment T&E. Taking the satellite for example, by constructing the digital architecture of equipment …

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Interaction Between Virus Transmission Variation And Population Crossover Activity And Diffusion Model, Lei Yu, Xichou Zhu, Huaming Liao, Jiafeng Guo, Xueqi Cheng Jul 2024

Interaction Between Virus Transmission Variation And Population Crossover Activity And Diffusion Model, Lei Yu, Xichou Zhu, Huaming Liao, Jiafeng Guo, Xueqi Cheng

Journal of System Simulation

Abstract: In view of the current high incidence of human-to-human infectious viruses, a multi-agent simulation and deduction model was proposed and designed based on the random characteristics of virus transmission variation and the influence of population crossover activity. The external pathogenicity and infectious characteristics of the virus and the external activities and immune characteristics of the human were quantified, and the interdependence and confrontation process between the virus and the human were modeled. The development trends and statistical characteristics of a large number of viruses and humans were deduced through the model. The experimental analysis reveals that the randomness of …

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Comparing Thin And Volume Regimes Of Analog Holograms For Wavefront Sensing, Emma Branigan, Andreas Zepp, Suzanne Martin, Matthew Sheehan, Szymon Gladysz, Kevin Murphy Jul 2024

Comparing Thin And Volume Regimes Of Analog Holograms For Wavefront Sensing, Emma Branigan, Andreas Zepp, Suzanne Martin, Matthew Sheehan, Szymon Gladysz, Kevin Murphy

Articles

Two analog holographic wavefront sensors, for measurement of defocus, have been fabricated as both thin and volume phase transmission holograms in a self-developing photopolymer. This represents the first reported direct comparison of hologram regimes when designed for wavefront sensing. An analysis of the effect of crosstalk in the presence of one other aberration mode (astigmatism X (0/90°), coma X (horizontal), and primary spherical aberration) was carried out with each version of the sensor. The performance of thin and volume analog holographic wavefront sensors was characterized under emulated conditions associated with moderate atmospheric turbulence.

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Characterizing Range-Dependent Variations Of The Evaporation Duct: A Meteorological Perspective, Daniel P. Greenway, Alexis E. Vaughan, Andrew J. Kammerer, Erin E. Hackett Jul 2024

Characterizing Range-Dependent Variations Of The Evaporation Duct: A Meteorological Perspective, Daniel P. Greenway, Alexis E. Vaughan, Andrew J. Kammerer, Erin E. Hackett

Marine Science

Evaporation ducts (EDs) are an observed electromagnetic phenomenon caused by rapid decreases of humidity with altitude. Sensing technologies that operate at X-band frequencies (8–12 GHz) exhibit the extension of radar signals beyond the radar horizon and holes in coverage at high altitudes during evaporative ducting conditions. In addition, the evolution of the ED over range has been reported to cause further adverse effects on these technologies in some circumstances. However, in terms of the predictability of these effects, more research is still needed. This research explores ED variations over range and characterizes them based-on two numerical datasets from different latitudes, …

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Employing Interactive Architecture Techniques In Architectural Design Methodologies To Retrieve Ancient Egyptian Identity, Dina Elwy Aly Hamed Hussein Dr. Lobna Abd-Allah Abd-Elfattah Agha , Dr. Azza Sobhi Ragab Elsakka Jul 2024

Employing Interactive Architecture Techniques In Architectural Design Methodologies To Retrieve Ancient Egyptian Identity, Dina Elwy Aly Hamed Hussein Dr. Lobna Abd-Allah Abd-Elfattah Agha , Dr. Azza Sobhi Ragab Elsakka

Journal of Engineering Research

Architectural projects often rely on modern technologies like smart architecture and environmental treatments, neglecting the principles and philosophy that reflect civilization, ideas, culture, and traditions. This leads to short-lived buildings that depend on these technologies without any purpose of preserving them. Technicians must constantly renew technology to improve production and without benefits, as threats of superior artificial intelligence have been warned, that autonomous machines may perform tasks without programmers understanding how to reach this level. Instead of relying solely on environmental or smart technology, we should make technology serve the design idea rather than relying solely on it. Considering this, …

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The Effect Of Lighting In Color In The Interior Space Of The Residential Unit, Abd Elbary Eldininy Abd Elbary Eldininy Jul 2024

The Effect Of Lighting In Color In The Interior Space Of The Residential Unit, Abd Elbary Eldininy Abd Elbary Eldininy

Journal of Engineering Research

ABSTRACT: Humanity is spending more and more time indoors, both at work and at home - with studies showing that we now spend 87% of our lives indoors. Residential environ ments both positively affect the mood and well-being of its occupants, just as places with poor and uncomfortable lighting and colors can make life miserable. This is why we are interested in this issue. The importance of knowing the issues of lighting and colors in order to obtain a well thought-out interior design. The interior designer has the ability to control in the quality of lighting of various types, artificial …

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Green Facade Strategy To Mitigate Heat Islands, Arch. Aya Gamal Abdel Hamid Muhammad Prof. Mai Wahba Madkour... Dr. Rania Elghamry Ashmawy Tolba Elakab Jul 2024

Green Facade Strategy To Mitigate Heat Islands, Arch. Aya Gamal Abdel Hamid Muhammad Prof. Mai Wahba Madkour... Dr. Rania Elghamry Ashmawy Tolba Elakab

Journal of Engineering Research

In the beginning of the twentieth century and the occurrence of the economic crisis that accompanied by a climate crisis, that one of its indicators the rise in temperatures and the formation of hot zones, especially in crowded cities, including Cairo in particular, as it is considered one of the crowded cities in the world, and this noticeable rise in temperatures in Some areas where hot zones form are called heat islands. This results because of the nature of the urban environment, which has a high building density, little natural landscape, and human and industrial activities that has a negative …

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Light Structure Building Technology Towards Sustainable Environmental Design, Sally El-Sayed Prof. Dr. Mai Wahba Madkour2, Prof. Dr. Marwa Ahmed Kamer El-Dawla3 Jul 2024

Light Structure Building Technology Towards Sustainable Environmental Design, Sally El-Sayed Prof. Dr. Mai Wahba Madkour2, Prof. Dr. Marwa Ahmed Kamer El-Dawla3

Journal of Engineering Research

The building and construction industry is one of the most important sectors globally , as it plays a vital role in providing housing and infrastructure that meets the needs of various communities , However , this industry is considered one of the largest contributors of negative environmental impacts in terms of consuming huge amounts of natural resources in an unsustainable manner and a subsequent increase in energy consumption .Therefore, it was necessary to find solutions and explore for new and sustainable construction methods to alleviate these problems .This research paper will focus on the use of light buildings and their …

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Available Building Technology As A Tool For Developing Construction And Structure Systems., J. Q. . Nader Ibrahim Ismael Jul 2024

Available Building Technology As A Tool For Developing Construction And Structure Systems., J. Q. . Nader Ibrahim Ismael

Journal of Engineering Research

The research aims to study the impact of available building technology in each era in the development of the constructional thought and implementation techniques used and its impact on the development of different types of buildings, through the emergence of different types of buildings and the development of buildings types in terms of shape and height, through the development of building materials used Whether construction materials or finishing materials, as well as used construction techniques and equipment, and the impact of all on the development of construction thought and construction systems through different eras . The research also represents an …

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Increasing Occupancy Rates In Coastal Tourism Development At The Regional Level In Support Of A Sustainable Quality Of Life In Egypt, عبدالرحمن محمد عبدالقادر موسي Jul 2024

Increasing Occupancy Rates In Coastal Tourism Development At The Regional Level In Support Of A Sustainable Quality Of Life In Egypt, عبدالرحمن محمد عبدالقادر موسي

Journal of Engineering Research

إن استغلال الفراغات التي تمثل أكثر من 80% من مساحة المنتجعات السياحية الساحلية في الأنشطة الرياضية والترفيهية والثقافية والاجتماعية وتوفير الخدمات المختلفة عن طريق دعم الخدمات الإلكترونية التي تساعد الزائرين في قضاء وقت أكبر بتلك القري السياحية، مع تعلم السباحة وركوب الدرجات والتجديف والتسلق وركوب الخيل دعما لجودة الحياة ، حيث التمتع بالهواء المتجدد القادم من البحر بعيدا عن التلوث والضوضاء، ولزيادة الاستفادة والدعم يتم توفير وحدات فندقة لغير الملاك لزيادة الزوار والاتفاق مع المدارس والجامعات لتنشيط تلك الرحلات للشواطئ وممارسة الأنشطة المميزة لهؤلاء الشباب والاستفادة من الخدمات الجيدة والفراغات الصحية والهواء المتجدد وتعلم الرياضات الشاطئية المفيدة وذلك الاتجاه من …

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Enhancing Daylight Using Sustainable Natural Lighting Techniques In Modern Architecture, سارة حسني شعلان أ.م.د/ لبني عبد الفتاح أغا Jul 2024

Enhancing Daylight Using Sustainable Natural Lighting Techniques In Modern Architecture, سارة حسني شعلان أ.م.د/ لبني عبد الفتاح أغا

Journal of Engineering Research

Natural lighting is one of the basic criteria for the architectural design process. It is one of the most important data that contributes to the design of architectural spaces and the manifestation of aesthetic values. In light of the global technological development and the scientific and information revolution, the role of the architect comes in highlighting the importance of natural lighting and its positive role in human biology, and reducing effort and psychological pressure in the event of Its use is an alternative to artificial lighting, as it increases human efficiency and achievement at work, in addition to giving a …

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Green Architecture Strategies To Achieve Sustainability In Buildings, Azza Sobhi Ragab Elsakka J. Q. Assos., Menna Ashraf Saeid Ali Jul 2024

Green Architecture Strategies To Achieve Sustainability In Buildings, Azza Sobhi Ragab Elsakka J. Q. Assos., Menna Ashraf Saeid Ali

Journal of Engineering Research

في الوقت الحالي توجد حاجة مُلحة لتطبيق معايير الاستدامة التي تعني المحافظة على الموارد الحالية و استخدامها بحيث لا تقل استفادة الأجيال القادمة من تلك الموارد ، و للاستدامة عدة جوانب لتطبيقها أحد تلك التطبيقات هي العمارة الخضراء ، العمارة الخضراء مرت بعدة مراحل بدءاً من القرن السابع عشر ( منذ العصر العثماني الاسلامي ) من خلال وجود بعض الأساليب الغير مباشرة في التصميم التي توفر التهوية و الإضاءة الطبيعية و حتى عصرنا هذا، حيث وُجد تقييم لأداء المبنى الأخضر من حيث أسلوب التصميم و الإنشاء بحيث لا يؤثر على البيئة تأثير سلبي و ما زال التطوير مستمر في إنشاء …

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The Impact Of Green Infrastructure On Urban Heat Island Phenomenon In Existing Cities, Neveen Youssef Azmy Basant Elsayed Abu-Farrag, Walaa Abou El-Haggag Mehanna Jul 2024

The Impact Of Green Infrastructure On Urban Heat Island Phenomenon In Existing Cities, Neveen Youssef Azmy Basant Elsayed Abu-Farrag, Walaa Abou El-Haggag Mehanna

Journal of Engineering Research

Rapid urbanization and overpopulation, along with a lack of green space, led to an increase in air temperature, lowering the rate of thermal comfort in dense urban areas, decreasing air quality, and increasing the urban heat island (UHI) phenomenon, particularly in existing cities. As a result, the research aims to reduce the UHI effect and improve the thermal performance of existing Egyptian cities by adopting green infrastructure (GI) principles and demonstrating their effectiveness on the UHI phenomenon. This research concentrates on the UHI phenomenon as one of the environmental issues facing urbanization and includes a review of green infrastructure (GI) …

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Optimizing Fenestration Systems In Residential Buildings: A Parametric Analysis Of Egyptian Energy Codes' Impact On Thermal Comfort, Wafik El-Menshawi Ali F. Bakr , Amira A.Fathi Jul 2024

Optimizing Fenestration Systems In Residential Buildings: A Parametric Analysis Of Egyptian Energy Codes' Impact On Thermal Comfort, Wafik El-Menshawi Ali F. Bakr , Amira A.Fathi

Journal of Engineering Research

- Fenestration systems, such as windows, doors, and skylights, play a crucial role in improving thermal comfort and reducing energy consumption in buildings. In Egypt, the energy code establishes standards for fenestration systems to promote energy efficiency and carbon emission reduction. Residential buildings account for a significant portion of total energy consumption, making the optimization of fenestration systems essential. This research focuses on studying the optimization of fenestration systems in Egyptian residential buildings through parametric analysis, considering energy standards and their impact on total energy gain and thermal comfort. The paper examines existing energy codes for fenestration systems and explores …

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Towards Green Cities As An Approach To Achieve Climate Change Adaptation, Noha H. Hefnawy Nouran M. Ibrahim Jul 2024

Towards Green Cities As An Approach To Achieve Climate Change Adaptation, Noha H. Hefnawy Nouran M. Ibrahim

Journal of Engineering Research

Climate change is a complicated problem and there is an urgent need for climate change adaptation. Cities are the primary drivers of social, economic, and technical progress. Green Cities are cities that show high environmental performance relative to adapting risks derived from climate change while maximizing the economic and social co-benefits. The Authors adopted a data collection strategy to review the issues, and difficulties caused by climate change and how green cities could assist in addressing them, then adopted a case study analysis to analyze the strategies used by Sharm El Sheikh in the transition to green city. The study …

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Using Recycled Materials Towards Sustainable, Eco-Friendly Building In Hot Regions – A Review, Mai W. Madkour Hosny A. Dewer, And Shaimaa M. Refaat Jul 2024

Using Recycled Materials Towards Sustainable, Eco-Friendly Building In Hot Regions – A Review, Mai W. Madkour Hosny A. Dewer, And Shaimaa M. Refaat

Journal of Engineering Research

Due to population growth and increased urban activity, there is a rise in waste production, which poses health and environmental risks. Additionally, the extraction and transportation of natural resources to places of employment require significant energy consumption, and the world has therefore moved to seek new alternatives away from traditional construction methods by recycling building materials such as concrete, brick, glass, wood, etc., or using new building materials such as rice straw, plastics, corks, etc., taking into account architectural design. The research is aimed at demonstrating that recycled materials have the potential to perform a better environmental performance by preserving …

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Sustainable Design Of Open Service Spaces In Universities (The American University In Cairo As An Example), مصطفى منصور عبد المجي أ.م.د. زينب لطفى عبدالحكيم خليفة Jul 2024

Sustainable Design Of Open Service Spaces In Universities (The American University In Cairo As An Example), مصطفى منصور عبد المجي أ.م.د. زينب لطفى عبدالحكيم خليفة

Journal of Engineering Research

إن الجامعات المستدامة تعد اتجاهاً مستقبلياً معاصراً لابد أن تحرص مؤسسات التعليم العالي على تبني مبادئه، ووضع خارطة طريق مستقبلية، وتتطلب استدامة الجامعات مواجهة الكثير من التحديات الجغرافية لضمان توفير بيئة آمنه ومريحة مع الحد الأدنى من الهدر، وإيلاء اهتمام خاص لاحتياجات الطلاب وجميع العاملين بالجامعة، والقدرة على تخطيط وإدارة الحيزات الخدمية المفتوحة بها وإقامة المنشآت المستدامة.

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Agile Vs Waterfall As An Approach For Effective Management Practices In Fit Out Projects (Preferences Of Project Managers), Moutaz M. El Baz 1 Jul 2024

Agile Vs Waterfall As An Approach For Effective Management Practices In Fit Out Projects (Preferences Of Project Managers), Moutaz M. El Baz 1

Journal of Engineering Research

Optimum time, cost & quality are the key objectives in managing fit-out projects. Waterfall and Agile are the most common approaches for achieving the project objectives. To determine the optimal managerial approach for fit-out projects, it was essential to study the project life cycle & phases, waterfall & agile methodologies & phases and the project management performance indicators. To achieve the research goals, a data gathering/analysis performed among three steps. Firstly, by performing qualitative research through semi-structured interviews with project management experts to verify the research hypothesis. Secondly, through studying the project & project management life cycle, phases and characteristics …

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Improving Home Designs For Disease Prevention In Gated Communities And Satisfying Living Space Needs In Egypt: A Post-Pandemic Living Assessment, A. Moustafa Kamel Neveen Youssef Azmy, Shahira Sharaf Eldin Jul 2024

Improving Home Designs For Disease Prevention In Gated Communities And Satisfying Living Space Needs In Egypt: A Post-Pandemic Living Assessment, A. Moustafa Kamel Neveen Youssef Azmy, Shahira Sharaf Eldin

Journal of Engineering Research

Abstract Pandemics such as SARS and COVID-19 have highlighted the importance of preventing and controlling diseases. Virus transmission in residential buildings, especially multi-unit apartment complexes, has prompted calls for innovative housing designs. While Western countries prioritize physical and mental health in residential building design, China focuses on comfort, aesthetics, appearance, and lifestyle.

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Studying The Problems Of Delayed Receipt Of University Buildings In Egypt During The Corona Pandemic, أ.د / مروه قمر الدولة أ.د / لبنى أغا Jul 2024

Studying The Problems Of Delayed Receipt Of University Buildings In Egypt During The Corona Pandemic, أ.د / مروه قمر الدولة أ.د / لبنى أغا

Journal of Engineering Research

على الرغم من وجود العديد من الدراسات السابقة في مجال تأخير مشاريع البناء. إلا أن هناك أبحاث محدودة جدًا تتناول تأثير كورونا على عوامل تأخر مشاريع البناء. وعليه فإن هذا البحث يتناول آراء المتخصصين حول تأثير جائحة كورونا على العوامل المسببة للتأخير في عملية البناء في مصر. ومن المتوقع أن تساهم نتائج هذا البحث في دراسة العوامل المسببة لهذا التأخير ومحاولة تقديم بعض التوصيات التي تساهم في وضع الخطط المستقبلية لمواجهة الظروف الاستثنائية المماثلة، يهدف هذا البحث إلى قياس أهمية العوامل المسببة للتأخير في عمليات البناء في مصر على مستوى المباني الجامعية بعد جائحة كورونا، وللوصول الى ذلك الهدف اتخذت …

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Design Characteristics Of The External Envelope Of Modern High-Rise Buildings In Egypt: Concepts And Indicators Of Energy Performance, حازم عز الدين قاسم ، نوبى محمد حسن، مصطفى محمد سيد Jul 2024

Design Characteristics Of The External Envelope Of Modern High-Rise Buildings In Egypt: Concepts And Indicators Of Energy Performance, حازم عز الدين قاسم ، نوبى محمد حسن، مصطفى محمد سيد

Journal of Engineering Research

إعتمدت الدولة المصرية فى الآونة الأخيرة نمط المبانى العالية فى مخططاتها لمراكز مدن الجيل الرابع الجديدة الجارى إنشاؤها فى العديد من المناطق، وذلك فى إطار سعى الدولة لتغيير الخريطة العمرانية والتوسع في الإستثمار العقاري وخلق مجتمعات مواكبة للتطور العمراني والتكنولوجي بما يتوافق مع رؤية مصر٢٠٣٠، ومع البدء فى ظهور وإعتماد العشرات من مشروعات المبانى العالية فى مصر، أصبح من الضرورى دراسة تصميم الغلاف الخارجى لتلك المبانى ومدى ملاءمته للمناخ والبيئة المحلية، وذلك بهدف الوصول لأفضل أداء للطاقة وأعلى كفاءة للإستهلاك.

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The Design Of The Outer Casing Is Compatible With The Hot Climate Environment, حازم عز الدين قاسم نوبى محمد حسن مصطفى محمد سيد Jul 2024

The Design Of The Outer Casing Is Compatible With The Hot Climate Environment, حازم عز الدين قاسم نوبى محمد حسن مصطفى محمد سيد

Journal of Engineering Research

تعتبر المبانى العالية أحد أقل أنماط المبانى توافقاً مع البيئة والمناخ، وذلك بسبب إنعزالها عن النسيج العمرانى المحيط وتعرضها للعديد من العوامل المناخية بشكل أكبر من المبانى المنخفضة، لذا يعتبر الغلاف الخارجى هو العنصر الأهم فى تصميم المبنى العالي لكونه بمثابة الجدار الفاصل بين البيئة الخارجية ذات الظروف المناخية القاسية وبين البيئة الداخلية التى يجب الوصول فيها لراحة المستخدم الحرارية، حيث يعد الغلاف الخارجى هو المسئول عن ما يقرب من 60% من إجمالى الطاقة التى يستهلكها المبنى العالى وذلك فى أعمال التبريد والتهوية الصناعية [1].

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An Analytical Study Of Key Performance Indicators For Knowledge Management In Construction Companies, Marwa. M. Ahmed Ayman A.E. Othman, Essam Eldin. K. Mahrous Jul 2024

An Analytical Study Of Key Performance Indicators For Knowledge Management In Construction Companies, Marwa. M. Ahmed Ayman A.E. Othman, Essam Eldin. K. Mahrous

Journal of Engineering Research

The construction and building industry plays a pivotal role in both national and global economies, necessitating a focused approach in knowledge management (KM) strategies amid current market disruptions and economic uncertainties. For construction companies to plan and develop effective KM strategies, they must be measured and incorporated within the key performance indicators (KPIs) relevant to construction companies. This research paper aims to review literature on knowledge management performance indicators (KM PIs) and rank their importance within the KPIs of contracting companies. Statistical analysis revealed that previous studies neglect KM PIs, such as, as some important techniques for KM, such as …

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Heritage Preservation In Egyptian Villages And Centers, Azza Elsakka Ahmed Abdalwahaab , Ebtehal Fady Shareef Jul 2024

Heritage Preservation In Egyptian Villages And Centers, Azza Elsakka Ahmed Abdalwahaab , Ebtehal Fady Shareef

Journal of Engineering Research

Heritage holds deep significance as a collective memory and a source of pride for any society. However, in today's world, it has evolved beyond its symbolic status and emerged as a crucial factor in human development across various dimensions. Preserving and restoring heritage has thus become an urgent issue that demands extensive cooperation between governments, international society, and community associations.

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Eco-Urbanism: Integrating The Transformation Of Sustainability Into City Design, Mira Ibrahim Helmi Jul 2024

Eco-Urbanism: Integrating The Transformation Of Sustainability Into City Design, Mira Ibrahim Helmi

Journal of Engineering Research

Eco-Urbanism, as a contemporary approach to city design, strives to seamlessly embed sustainability into the very fabric of urban environments. This abstract delves into the fundamental principles & aspirations of Eco-Urbanism, illustrating its commitment to catalysing a paradigm shift that harmonizes ecological, economic, social dimensions within cities. In a world increasingly defined by urbanization and ecological challenges, Eco-Urbanism emerges as an imperative response to the imperative for sustainable urban planning. It envisions cities that are not merely centres of growth but are purposefully designed to coexist with and protect their natural surroundings, nurture economic vitality, and champion social inclusivity. Key …

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Assessing The Carbon Footprint And Environmental Consequences Of High-Pressure Laminate Utilization., Mira Ibrahim Helmi Jul 2024

Assessing The Carbon Footprint And Environmental Consequences Of High-Pressure Laminate Utilization., Mira Ibrahim Helmi

Journal of Engineering Research

High-Pressure Laminate (HPL) stands as a prominent engineered decorative surface material, comprising layers of paper, resin, laminate, widely utilized in furniture, countertops, flooring, and wall panels. This study investigates the environmental impact of HPL through the lens of its carbon footprint, a metric quantifying the carbon dioxide emissions associated with its entire life cycle. A notable finding from the European Panel Federation (EPF) suggests that the carbon footprint of HPL approximates 1.2 kg CO2 eq/m2, revealing the emission intensity per square meter of produced material. [1]

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