Abstract: Sustainability is a compound matter, which have three aspects: the socio - cultural factors, the environmental and the economic sustainability. These aspects are often neglected, especially when referring to urban development of Egyptian cities that embrace involved built cultural heritage within their urban fabric. Cultural heritage is mainly regarded as archaeological heritage. Although Since few years, the cultural heritage management has started to move towards new trend that link between conservation and sustainable development. Strategic plans have been prepared for all Egyptian cities, including cities of historical value. Historical cities have no special tool to ensure that the built heritage secure sustainable development, due to the deficiency of the management tools, urban development and built cultural heritage have often been cited as incompatible forces in urban management. For this reason, this paper intends to introduce a modified tool for the strategic planning of Egyptian historic cities. This tool helps to: reflect conservation and sustainable development relationship; perceive the built heritage as no longer hindrance to modernization and economic growth; and consider historical values as power for development. Moreover, the positive effect of cultural heritage in sustainable development is strongly recommended to be considered as the main achievement during the phase of planning. The overarching questions were as following: do strategic planning goals and criteria support the concretization of cultural values? What are the experiences in cultural heritage management Plans? How can built cultural heritage be linked with urban and environmental sustainable development? And what are the potential cooperative interactions between heritage preservation and sustainable development?

ABSTRACT There is an increased interest to understand and evaluate travel patterns and behaviors, as an attempt to understand travel choices and to identify priorities for interventions. Factors affecting travel choices and behavior were divided into two main groups: non-urban factors and urban factors. This study examined the effect of some various land-use factors on the behavior of the inhabitants of Assiut city-Egypt and measured the preferences of users for special and alternative modes of mechanical mobility in an attempt to determine the required and urgent development priorities to improve transportation services and change travel behaviors toward sustainability. The study was based on an analytical descriptive method. The database was derived from a field study of Assiut city during the period (January 2017 to March 2017). The data were collected through: urban survey of the urban environment supporting the mobility style and behavior of the respondents, in different neighborhoods in Assiut city. During the same period, the researchers distributed a questionnaire at work centers, educational services and some commercial services sites in Assiut. The relative weights for factors limiting the use of alternative means by individuals as well as factors encouraging individuals to use alternative means of transport were determined. The study concluded that mixed land use alone is not enough to reduce mobility and to encourage individuals to move without using mechanical or motorized ways. It should be accompanied with a balanced diversity distribution of services with access by multiple means of transport. In addition, the use of mixed and diverse land use and the shortness of travel distance has a stronger impact on the quality and efficiency of pedestrian corridors and their transit areas on increasing pedestrian mobility, while the quality and efficiency of the cycling infrastructure has been found to be more effective than the limited mobility of bicycles. People's behavior and choices are affected primarily by the quality and efficiency of transport services provided, rather than by mobility costs, and the need to combine pricing policies with urban and planning procedures to change mobility behaviors and to lead to more sustainable behaviors. The paper concluded with a set of recommendations on sustainable mobility and land use in an integrated framework.

ABSTRACT There is an increased interest to understand and evaluate travel patterns and behaviors, as an attempt to understand travel choices and to identify priorities for interventions. Factors affecting travel choices and behavior were divided into two main groups: non-urban factors and urban factors. This study examined the effect of some various land-use factors on the behavior of the inhabitants of Assiut city-Egypt and measured the preferences of users for special and alternative modes of mechanical mobility in an attempt to determine the required and urgent development priorities to improve transportation services and change travel behaviors toward sustainability. The study was based on an analytical descriptive method. The database was derived from a field study of Assiut city during the period (January 2017 to March 2017). The data were collected through: urban survey of the urban environment supporting the mobility style and behavior of the respondents, in different neighborhoods in Assiut city. During the same period, the researchers distributed a questionnaire at work centers, educational services and some commercial services sites in Assiut. The relative weights for factors limiting the use of alternative means by individuals as well as factors encouraging individuals to use alternative means of transport were determined. The study concluded that mixed land use alone is not enough to reduce mobility and to encourage individuals to move without using mechanical or motorized ways. It should be accompanied with a balanced diversity distribution of services with access by multiple means of transport. In addition, the use of mixed and diverse land use and the shortness of travel distance has a stronger impact on the quality and efficiency of pedestrian corridors and their transit areas on increasing pedestrian mobility, while the quality and efficiency of the cycling infrastructure has been found to be more effective than the limited mobility of bicycles. People's behavior and choices are affected primarily by the quality and efficiency of transport services provided, rather than by mobility costs, and the need to combine pricing policies with urban and planning procedures to change mobility behaviors and to lead to more sustainable behaviors. The paper concluded with a set of recommendations on sustainable mobility and land use in an integrated framework.

ABSTRACT There is an increased interest to understand and evaluate travel patterns and behaviors, as an attempt to understand travel choices and to identify priorities for interventions. Factors affecting travel choices and behavior were divided into two main groups: non-urban factors and urban factors. This study examined the effect of some various land-use factors on the behavior of the inhabitants of Assiut city-Egypt and measured the preferences of users for special and alternative modes of mechanical mobility in an attempt to determine the required and urgent development priorities to improve transportation services and change travel behaviors toward sustainability. The study was based on an analytical descriptive method. The database was derived from a field study of Assiut city during the period (January 2017 to March 2017). The data were collected through: urban survey of the urban environment supporting the mobility style and behavior of the respondents, in different neighborhoods in Assiut city. During the same period, the researchers distributed a questionnaire at work centers, educational services and some commercial services sites in Assiut. The relative weights for factors limiting the use of alternative means by individuals as well as factors encouraging individuals to use alternative means of transport were determined. The study concluded that mixed land use alone is not enough to reduce mobility and to encourage individuals to move without using mechanical or motorized ways. It should be accompanied with a balanced diversity distribution of services with access by multiple means of transport. In addition, the use of mixed and diverse land use and the shortness of travel distance has a stronger impact on the quality and efficiency of pedestrian corridors and their transit areas on increasing pedestrian mobility, while the quality and efficiency of the cycling infrastructure has been found to be more effective than the limited mobility of bicycles. People's behavior and choices are affected primarily by the quality and efficiency of transport services provided, rather than by mobility costs, and the need to combine pricing policies with urban and planning procedures to change mobility behaviors and to lead to more sustainable behaviors. The paper concluded with a set of recommendations on sustainable mobility and land use in an integrated framework.

Human Body Communication (HBC), which utilizes the human body as a communication channel, is a promising communication method for wireless body area networks. In this paper, we use the deep-learning based approach to design and implement a new optimized architecture for HBC system with scalable date rates feature. The proposed transceiver is completely implemented using two deep neural networks, one represents the autoencoder for the transmitter and receiver, and the other for frame synchronization. The proposed autoencoder-based HBC improves block error rate by 2 dB compared to the conventional HBC design. In addition, low complexity modules for CRC encoder and decoder, Scrambler and Descrambler, and Preamble/SFD generator are proposed. Implemented under 45nm CMOS technology, the core size of the proposed design is 0.116 mm^2, and the estimated power is 1.468 mW with a peak data rate of 5.25 Mbps. The energy efficiency (Eb) of the proposed design is 280 pJ/b that is over 3.5x better than the conventional HBC designs in literature.

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نظراً للطبيعة المتميز لصناعة التشييد والبناء والعوامل المؤثرة علي أدائها، نادراً ما تنتهى مشروعات البناء والتشييد بدون أن تخضع لتغييرات أو تعديلات على أعمال العقد الأصلية خصوصاً أثناء مرحلة التنفيذ، على الرغم من الآثار الإيجابية لأوامر التغيير سواء من ناحية استخدام مواد جديده أو تلبية طلبات جديدة لمالك المشروع، إلا أن لها آثاراً سلبية تتمثل في زيادة التكلفة وتأخير في الجدول الزمني، والإشكالية في هذا البحث هو قلة المحددات المتوافره لحل المشكلات عند صدور أوامر تغيير خلال مرحلة التنفيذ للمشروعات الحكومية مما يتسبب في نزاع حول عقد التنفيذ وقد تؤدى إلى فشل تنفيذ المشروع. لذلك يهدف هذا البحث إلى دراسة الوضع الراهن لعملية إدارة أوامر التغيير التى تطرأ على مشروعات التشييد الحكومية فى مصر خلال مرحلة التنفيذ، لتحقيق هذا الهدف الرئيسي تم تصميم منهجية بحثية لتحقيق هدفين أساسيين، أولاً: مراجعة الأدبيات العلمية والقانونية المتعلقة بإدارة أوامر التغيير ، ثانياً: إجراء إستبيان ميدانى لتحديد الأساليب المستخدمة عملياً فى إدارة أوامر التغيير ومدى القصور بها. وقد أثبت هذا البحث من خلال تحليل نتائج الإستبيان والوصول الى أن محددات إدارة أوامر التغيير الحالية فى مصر غير كافية وتسبب الكثير من الخلافات والمنازعات تصل الى 67% من الحالات وتحمل المقاول ما يصل إلى 83% من مخاطر أوامر التغيير، الأمر الذي يتطلب إعادة النظر فيما هو متوافر من محددات لتقليل حجم المنازعات بين اطراف العقد، ويخلص البحث الى أن إدارة أوامر التغيير فى مصر تحتاج الى منهجية واضحة لتقليل حجم المنازعات والخلافات والأضرار التى تقع على أحد أطراف العقد.