Engineering Commons^™

اللانمطية في الفراغات الداخلية (دراسة تحليلية للفراغات الداخلية في العمارة التفكيكية), ايمان صبري عبد اللطيف

Architecture and Planning Journal (APJ)

ان الفكر التصميمي في العمارة التفكيكية يعتمد على سياسة الإختلاف وإبراز التناقضات والبعد عن كل ما هو قديم أو موروث، وأدى ذلك إلي ظهور أفكار معمارية وإنشائية متطورة نتج عنها فراغات غير نمطية، وعمارة التفكيك (Deconstruction Architecture) ليس مجرد حركة معمارية أو طراز أو مسمى ظهر فى الآفق سنة 1971 انما هى ظاهرة ثقافية كبرى من اهم التطورات الحديثة فى الفن والعمارة فى العصر الجارى، والتغير في الفراغات اللانمطية إنما جاء من خلال إحداث تغييرات جذرية في محددات الفراغ المعماري وأسلوب تصميمه وهيئته المعمارية الداخلية والخارجية، وإختبار أشكال معمارية جديدة لا تستند إلى قواعد معروفة، بجانب نجاحها في تحقيق إستثارة …

قمة العالم للمناخ ومستقبل البشرية, محسن زهران

Architecture and Planning Journal (APJ)

تنظم هيئة الأمم المتحدة فى العاصمة الدانماركية كوبنهاجن خلال الفترة من 7-18/12/2009 المؤتمر العالمى لقمة المناخClimate Change Summit ، الذى تشترك فيه 192 دولة، ويشارك فيه أكثر من 100 رئيس دولة وحكومة. وتعقد هذه القمة الآن فى وقت حاسم من أجل مجابهة تعاظم ظواهر الأحتباس الحرارى، ومواجهة تردى توابعها المدمرة فى كافة أنحاء الأرض والكون. ومن المعروف أن اتفاقية كيوتو قد أوشكت على الأنتهاء فى عام 2012، دون الألتزام بمقرراتها الهامة للحد من الأحتباس الحرارى فى مواقيت محددة، خاصة من قبل الدول الصناعية الكبرى المسئولة عن أغلب الأنبعاثات الغازية المتسببة فى تفاقم الظواهر الخطيرة للأحتباس الحرارى.

من أجل مستقبل أفضل لأعمال صيانة المباني السكنية في مصر, مصطفى جلال رمضان

Architecture and Planning Journal (APJ)

شهدت مصر في الآونة الاخيرة تزايد حالات انهيار العقارات بسبب إهمال جميع أعمال الصيانة واغفال أهمية مهندس الصيانة على الرغم من أنه من أهم المشاركين فى خطوات العملية التصميمية والإنشائية، فهو الذى يقع عليه عبء اختيار المواد وتصميم استخدام المادة وتطبيق المواصفات التنفيذية والقياسية عليها، وكذلك تحديد العمر الافتراضى لكل مادة. إن أعمال الصيانة لأي مبنى تعنى مجموعة التقنيات العلمية والإدارية التي تشمل الإشراف التام على المبنى بعد تنفيذه وطوال عمره الإفتراضى للحفاظ على مكوناته المعمارية والإنشائية والميكانيكية وغيرها ...أو إعادة تأهيله مرة أخرى، بحيث يكون صالحا للاستعمال ويؤدى وظائفه بشكل مرضى. وهناك عوامل كثيرة تؤثر على متطلبات الصيانة كعمر …

تقييم المخطط القومى لتنمية لبنان لتصميم منظومة ادارة موارد البيئة الطبيعية والبيئة المبنية: دراسة تطبيقية للمخطط القومى للبنان والمخطط الاقليمى لبيروتEvalution Of National Planning For Lebanon Development Towards The Design Of Management System Of The Natural Enviroment And Resources Of Built Enviroment: Case Study Of National Planning Of Lebanon And Regional Planning Of Beirut, هشام جلال الشيمى

Architecture and Planning Journal (APJ)

منظومة التخطيط القومى تعتبر اداة لتنفيذ السياسات الاستراتيجية للدولة فى اطار مؤسسى باستخدام الاليات والتشريعات والقوانين المنظمة لسير العمل فحين ان التخطيط الاقليمى هو تطبيق لاستراتيجية التخطيط القومى بما يتوافق مع امكانيات الاقليم (المساحة – السكان – الموارد البيئية) والتكامل فيما بينهما يدعم نجاحهما و يهدف البحث الى توفير منهج متكامل لإدارة التنمية القومية والإقليمية من خلال ادارة للمخططات القومية الاستراتيجية باستخدام منظومة تشتمل على عناصر التخطيط القومى وذلك بتنسيق مراحله وصياغتها فى صورة خطوات تنفيذية للوصول لمنهج لإدارة التنمية القومية والإقليمية وتكوين منظومة لادارة استغلال الموارد الطبيعية للمخططات القومية الاستراتيجية لاستدامة المخططات الإقليمية التفصيلية وتعتبر لبنان مثال متميز للتطبيق …

دور مراكز الأحياء السكنية في الانجاح الاقتصادي لمشاريع المسكن الميسر, أحمد بن عبدالكريم المحيميد

Architecture and Planning Journal (APJ)

يتطرق هذا البحث إلى نشأة مراكز الأحياء في المملكة العربية السعودية ومعرفة أهمية ودور هذة المراكز لتنمية قدرات الساكنين خاصة ذوي الدخول المحدودة وبالتالي مساعدتهم على حل العديد من المشكلات مثل الفقر والبطالة وكذلك تخفيض معدلات الجريمة, كما أن البحث يتطرق إلى طرق وأساليب تمويل مراكز الحي والجدوى الاقتصادية من إنشائها. أوضح البحث أن الأهداف التي تقوم عليها مراكز الأحياء تختلف بمكان إقامتها فهي بالمناطق الغنية تكون للترفية والتسلية للساكنين، بينما تكون لإعادة التأهيل والتدريب للمناطق ذات المساكن الميسرة. خلص البحث إلى أن مراكز الأحياء في المناطق الغنية ذات جدوى اقتصادية بينما هي تفتقر إلى النجاح من هذة الناحية في …

عمارة المناطق المتوافقة والمتجانسة عمرانياًبين متطلبات الحاجة والحفاظ على القيم المعمارية, علاء الدين عادل الألفي

Architecture and Planning Journal (APJ)

شهد القرن العشرون نهضة تكنولوجية ضخمة، وحمل معه التيارات الفكرية التي غيرت مجرى كافة المجالات. وفي ظل هذه الثورة لا يجب أن تبقى المناطق التراثية التي تميزت بالتجانس المعماري والعمراني منعزلة يخيم عليها الانغلاق والتأخر. فقد أصبح مبدأ توفيق العمارة والعمران للمناطق التراثية عبئاً مشتركا لإيجاد التنسيق بين متطلبات العصر الحديث والحفاظ على التراث والقيمة وتجانس هذه المناطق. يتناول البحث أسلوب "التوفيق" من المنظور البيئي والمحلى لعمارة المناطق المتجانسة عمرانياً من خلال البحث في مفهوم التراث العمراني، وكيف يكون الإدخال الطبيعي لأعمال جديدة لينتج كل مرة تركيبيا جديدا يكون مقبولاً إذا كانت هذه الإضافة لها قيمتها. ثم ينطلق البحث إلى …

التنمية السياحية المستدامة للمدن الأثرية الساحليةدراسة تطبيقية: (مدينة القصير - محافظة البحر الأحمر), علاء الدين عادل الألفي

Architecture and Planning Journal (APJ)

تقليدياً كانت السياحة في مصر دائما "ثقافية" و "تاريخية" بسبب وفرة مواردها التراثية، والآثار المصرية القديمة المتمركزة في وادي النيل. ولكن منذ ما يقرب من عشر سنوات انضمت مناطق جديدة لخريطة مصر السياحية منها ساحل البحر الأحمر وشبه جزيرة سيناء والساحل الشمالي والصحراء الغربية بواحاتها الكثيرة والتي تعرض عناصر جذب طبيعية رائعة ومتنوعة. ولذلك فهناك احتياج حقيقي لنوعية جديدة من التنمية السياحية، والتي يتطلب الوضع أن تكون حتماً أكثر حساسية للبيئية على أن تدار بشكل يدعم الحفاظ على الموارد الطبيعية والثقافية وحمايتها، وهى الموارد ذاتها التي تجلب السائحين لساحل البحر الأحمر وسيناء. وبناء على ما تقدم فأن مدينة القصير تعتبر …

The Politics Of Land-Use Conversion In The Peri-Urban Areas Of The Egyptian Cities, Tarek Saad Ragab

Architecture and Planning Journal (APJ)

Linkages of rural-urban structures, in both degrees of intensity and typology, are ever changing and consequently changing the interface of the Egyptian urban setting. The dynamics of the rural-urban interrelationships constantly generate different types of powers that have been manipulating the pattern of urban growth as much as articulating distortion and imbalances of the entire urban system. The attributes of the system inputs, for example the nature of land-use policy and tools, determine to a far extent the quality of the outputs that could be epitomized in the accomplishment of the developmental national objectives. On the other hand, expanding the …

Managing Distortions In The Egyptian Spatial System: Does The Current Development Policy Pay Off?, Tarek Saad Ragab

Architecture and Planning Journal (APJ)

This research reviews the recent trend of the Egyptian national development policy of which major objectives are alleviating the intensity of untamed urban growth - and - population concentration in urban cores, and better integration of the national economy subsets. Despite attempts to reconcile these objectives in one agenda, the paper concludes that main issues endemic to the national spatial development policy in Egypt remain dangerously undervalued. The paper poses the question of whether the current spatial development policy paradigm can contribute effectively to managing the Egyptian spatial system imbalances. An answer was sought through policy analysis, which included the …

Visualization-Based Decision Support For Optimizing Site Selection:Quarries In Lebanon; Where To?, Maher Y. Ibrahim, Ahmed M. Soliman, Khalid S. Al-Hagla

Architecture and Planning Journal (APJ)

Traditionally the term visualization has been used to describe the process of graphically conveying or presenting end results. This paper argues that the utility of visualization approaches extends beyond these limits as it plays key role in fields of exploration, analysis and presentation, which enhances planner's capabilities to solve complex planning problems. It proposes a transdisciplinary method that combines visualization approaches to site selection, integrated with spatial scenario planning, and stakeholder participation. However, it focuses on visualization as it relates to spatial data, to be applied to all the stages of problem-solving in geographical analysis, from development of initial hypotheses, …

Living In Hot Arid Environments; An Overview Of The South African Experience, Riham Muhammed Gaber

Architecture and Planning Journal (APJ)

One of the most significant challenges facing the world today is the ever increasing tension between technical development and the environment. High environmental quality is a key term that researchers are striving to accomplish, in view of the catastrophes the world is now facing. Our nation and the world have an enormous need for Sustainable architecture. This demands that we rethink the extractive habits of our industry in countries, and reconnect them with the natural world and ecosystems that support life and look for advanced solutions for energy, water, and climate change. The driver of these needs is humankind. People …

The Analysis Of Urban Concentration And Decentralization In Egypt: Case Study Of Port Said Governorate., Hany M. Ayad

Architecture and Planning Journal (APJ)

The structural spatial imbalances in Egypt have received considerable attention in recent years. Discussions have been characterized by both a focus towards the importance of the exploitation of the competitive advantages of regions and the reduction of socio-economic disparities by directing development towards backward regions. Those two opinions are drawing attention towards the need for an in-depth analysis of concentration and decentralization policies and their impacts on the land use distribution. This paper analyzes the urban growth scenarios in Port Said governorate within a framework of a decentralized concentration approach for the allocation of economic activities. The purpose of this …

The Benefits Of Employing Multi Skilled Techniciansto Maintenance Processes, Abdulsalam A. Al-Sudairi

Architecture and Planning Journal (APJ)

Many researchers and practitioners applied lean theory to planning, designing and executing construction projects. However, few of their studies have been conducted in maintaining such projects. Maintaining and operating any constructed facility costs more than its initial cost. The aim of this study is to improve maintenance processes by simulating the lean concept of multi-skilled technician to an existing maintenance process. Statistical data and maintenance process map of Saudi Consolidated Electric Company (SCECO) are modeled in Extend+BPR® to be an experimental tool for evaluating the benefits of multi-skilled technicians. The simulation models of this study showed significant improvement in both …

Hu Aquaponics Monitoring And Control System : European Annual Edunet Conference 2020, Rachel L. Fogle, Glenn P. Williams, Josh R. Krug

Harrisburg University Presidential Research Grants

The functional purpose of the HU Aquaponics Monitoring and Control System Project is to develop an environmental and plant monitoring and control system for the HU Aquaponics Lab, located in the Student Union. The project involves the design and implementation of technology that will regularly take measurements from the environment (e.g., air temperature, water temperature, pH, dissolved oxygen, etc). PLCnext Technology will systematically collect, store, and web-publish the measurement data for HU researchers and the public to use for scientific research.

Lyerla, Floyd B., Collection, 1915-1931, Special Collections, Leonard H. Axe Library

Finding Aids

A collection of documents, letters, and items regarding Weir, Kansas (Cherokee County), and mining and business in Southeast Kansas.

Floyd B. Lyerla was born on November 20, 1928 and died

December 23, 2009. Lyerla enlisted in the U.S. Navy after high school during World War II and was called to active duty with the U.S. Army during the Korean and Vietnam Wars. He retired after 23 years of service in 1970. Lyerla was a decorated veteran with 23 military awards, including the World War II Victory Medal, Army Occupation with Germany Device, Korean Defense Service Medal, and the Republic of …

Comparison Of Flow Solutions For Naturally Fractured Reservoirs Using Complex Analysis Methods (Cam) And Embedded Discrete Fracture Models (Edfm): Fundamental Design Differences And Improved Scaling Method, Aaditya Khanal, Ruud Weijermars

Jasper Department of Chemical Engineering Faculty Publications and Presentations

The present study compares flow paths in reservoirs with natural fractures, solved with Complex Analysis Methods (CAM), to those solved with Embedded Discrete Fracture Models (EDFM). One aim is to define scaling rules for the strength (flux) of the discrete natural fractures used in CAM models, which was previously theoretically defined based on the expected flow distortion. A major hurdle for quantitative benchmarks of CAM with EDFM results is that each of the two methods accounts for natural fractures with different assumptions and input parameters. For example, EDFM scales the permeability of the natural fractures based on a cubic equation, …

Dbknot: A Transparent And Seamless, Pluggable Tamper Evident Database, Islam Khalil

Theses and Dissertations

Database integrity is crucial to organizations that rely on databases of important data. They suffer from the vulnerability to internal fraud. Database tampering by internal malicious employees with high technical authorization to their infrastructure or even compromised by externals is one of the important attack vectors.

This thesis addresses such challenge in a class of problems where data is appended only and is immutable. Examples of operations where data does not change is a) financial institutions (banks, accounting systems, stock market, etc., b) registries and notary systems where important data is kept but is never subject to change, and c) …

Mechanochemical Conversion Kinetics Of Red To Black Phosphorus And Scaling Parameters For High Volume Synthesis, Samuel V. Pedersen, Florent Muramutsa, Joshua D. Wood, Chad Husko, David Estrada, Brian J. Jaques

Materials Science and Engineering Faculty Publications and Presentations

Adopting black phosphorus (BP) as a material in electronic and optoelectronic device manufacturing requires the development and understanding of a large-scale synthesis technique. To that end, high-energy planetary ball milling is demonstrated as a scalable synthesis route, and the mechanisms and conversion kinetics of the BP phase transformation are investigated. During the milling process, media collisions rapidly compress amorphous red phosphorus (RP) into crystalline, orthorhombic BP flakes, resulting in a conversion yield of ≈90% for ≈5 g of bulk BP powder. Milling conversion kinetics, monitored via ex situ x-ray diffraction, manifest a sigmoidal behavior best described by the Avrami rate …

Civil Engineering And Construction News, Georgia Southern University

Civil Engineering & Construction: News & Publications (2011-2022)

• Georgia Southern CM Students Receive Scholarships from the Georgia Utility Contractors’ Association

Thermostabilization Of Viruses Via Complex Coacervation, Xue Mi, Whitney C. Blocher Mctigue, Pratik Umesh Joshi, Mallory K. Bunker, Caryn L. Heldt, Sarah L. Perry

Michigan Tech Publications, Part 1

Widespread vaccine coverage for viral diseases could save the lives of millions of people each year. For viral vaccines to be effective, they must be transported and stored in a narrow temperature range of 2–8 °C. If temperatures are not maintained, the vaccine may lose its potency and would no longer be effective in fighting disease; this is called the cold storage problem. Finding a way to thermally stabilize a virus and end the need to transport and store vaccines at refrigeration temperatures will increase access to life-saving vaccines. We explore the use of polymer-rich complex coacervates to stabilize viruses. …

Modification Of Inuline By Iodic Acid, Rakhmanberdiyev Gappar, Ibragimova Кomila, Аxmedov Оliy

CHEMISTRY AND CHEMICAL ENGINEERING

In order to further modify inulin with drugs, the process of introducing reactive aldehyde groups into the inulin macromolecule was carried out. Aldehyde groups were introduced by oxidizing inulin with iodic acid. The process of oxidation of inulin and cellulose with iodic acid was compared. The quantities of aldehyde groups in the oxidized samples were estimated, their molecular weights were determined, IR spectra were measured, the iodine number of the inulin dialdehyde and their oxidation state were determined.

Synthesis Of 1,2,3-Triazoles Based On Propargyl Ethers Of Carbamate, Djuraev Abdukahhor, Yakubxodjaeva Malika, Ataxodjaeva Matluba, Gaibullaev Oibek

CHEMISTRY AND CHEMICAL ENGINEERING

By the interaction of propargyl esters of carbamate derivatives with phenylazide, 1,2,3- triazole derivatives were synthesized. Their anti-inflammatory activity was subsequently studied.During the study of biological activity, a relationship was established between the anti- inflammatory activity and the chemical structure in the studied series of 1,2,3-triazole derivatives.

Two-Photon 3-Dimensional Photoelectrochemical Etching Of Single Crystal Silicon Carbide, Peter Robert Nyholm

Theses and Dissertations

This thesis presents the first use of a novel direct-write, non-line-of-sight, two-photon photoelectrochemical etching technique for etching of single crystal silicon carbide substrates. The use of this technique has resulted in structuring of 3-dimensional structures in high quality single crystal silicon carbide wafers. The 3-dimensional structures demonstrated cannot be formed by any single or combination of traditional silicon carbide machining techniques. This thesis outlines the development of the optical, electrical, and diagnostic components required to achieve two-photon photoelectrochemical etching in silicon carbide. The diagnostic sub-assemblies --a single pixel confocal detector assembly and an in-situ optical microscope assembly-- and their design …

Research And Simulation Of Dc Microgrid Three-Phase Ac-Dc Converter Control Strategy Based On Double Loop, Boning Wu, Zhiqiang Gao, Xuesong Zhou, Youjie Ma, Chenglong Wang

Electrical and Computer Engineering Faculty Publications

The new voltage and current double loop control strategy is proposed to solve the DC microgrid bus voltage fluctuation caused by loads fluctuation, parameters perturbation and unbalanced three-phase power supply. Firstly, the dq axis mathematical model of three-phase AC-DC bidirectional converter in DC microgrid is analyzed and established, and then the controllers are designed according to the dq axis mathematical model. The outer loop is a voltage loop based on variable gain linear extended state observer (VGLESO) and sliding mode theory. VGLESO can not only effectively overcome the problem of peak output of traditional high-gain LESO in the initial stage …

Global Aeolian Dust Variations And Trends: A Revisit Of Dust Event And Visibility Observations From Surface Weather Stations, Xin Xi

Michigan Tech Publications, Part 1

This study revisits the use of horizontal visibility and manually reported present weather (ww) records from the NOAA Integrated Surface Database (ISD) for characterizing the aeolian dust variability and recent trends over the globe and three largest source regions (North Africa, Middle East, and East Asia). Due to its qualitative nature, ww is combined with visibility to derive a new variable, VI, which has higher correlations with the dust emission and burden from satellite observations and global aerosol reanalyses than does the dust event frequency (FR) derived from ww only. Both FR and VI capture …

College Of Engineering News, Georgia Southern University

College of Engineering & Computing: News & Publications (2010-2023)

• Five Students Win GA Utility Contractors Assoc., Inc. Scholarships

Second-Harmonic Generation Of Structured Light By Transition-Metal Dichalcogenide Metasurfaces, Ling Ling Meng, Xiaoyan Y.Z. Xiong, Tian Xia, Qin S. Liu, Li (Lijun) Jun Jiang, Wei E.I. Sha, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

Structured light characterized by spatially inhomogeneous optical fields found rich applications in optical communication, sensing, microscopy, manipulation, and quantum information. While generation of structured light has been extensively studied in linear optics, the nonlinear optical process, particularly in two-dimensional (2D) materials, is an emerging alternative for generating structured light at shorter wavelengths. In this work, we theoretically demonstrate that radially and azimuthally polarized beams and vortex beams carrying orbital angular momentum could be generated at second-harmonic frequencies by using 2D material-based metasurfaces comprising the same transition-metal dichalcogenide meta-atoms. Manipulation of translations and orientations of anisotropically nonlinear meta-atoms exhibiting a threefold …

A Bibliometric Analysis Of Face Anti Spoofing, Swapnil Ramesh Shinde, Shraddha Phansalkar, Sudeep D. Thepade

Library Philosophy and Practice (e-journal)

Face Recognition Systems are used widely in all areas as a medium of authentication, the ease of implementation and accuracy provides it with a broader scope. The face recognition systems are vulnerable to some extent and are attacked by performing different types of attacks using a variety of techniques. The term used to describe the measures taken to prevent these types of attacks is known as face anti spoofing. Research has been carried on since decades to design systems that are robust against these attacks. The focus of the work in this paper is to explore the area of face …

Physical And Chemical Characteristics Of Supramolecular Complexes Of Glycirrizinic Acid With Phytohormones, Djuraev Tulqin, Esanov Rakhmatillo, Gafurov Makhmudjon, Kushiev Khabibjon

CHEMISTRY AND CHEMICAL ENGINEERING

The process of formation of supramolecular complexes of glycyrrhizinic acid with some phytohormones (indolylacetic acid, indolylbutyric acid, α-naphthyl acetic acid and kinetin) were studied with the aim of creation the plant growth stimulator. The complexes structure was studied using IR and UV spectroscopy methods. The prepared compounds described by some physicochemical parameters. The stability constants and stoichiometric composition of complexes were determined in an aqueous solution at pH of 7,2 using UV spectrometry method. In result, all complexes have composition as 1:1 ratio, except the kinetin complex which has 2:1 ratio. The stability constants were equal: KGA:IAA=1,86±1×104; KGA:IBA=2,51±1×103; KGA:NAA =2,70±1×103 …

Study Of The Process For The Removal Of Dyeing Matters Of The Plant Occimum Basilicum L. Lamiaceae, Usmonjonova Khulkar, Atkhamova Saida, Dodaev Kuchkor

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the work is dedicated isolation of anthocyanins by ethanol from herbal plant of Occimum basilicum L. Lamiaceae basis. The were studied influencing of temperature, concentration of ethanol to isolation of anthocyanins. There were passed investigations on studying influence level of heating and hydromodule system of rav material-solvent to maximal isolating of anthocyanins. The colors define by fotokolorometrical method at wave length 400-600 nm. There are shown at 540 nm maximal peak of anthocyanins and it is geven as a grapfical diagram. From the obtained depends on content of alcohol in aquatic solution from outlet of colors is …