Constant changes occur to the family requirements of housing with the flowing of time, and these changes
are due to the number of its members, their needs , the standard of living the economic conditions , or as a
result of increasing technical dev
elopments. This implies facing house requirements and applying changes
in the number of the house rooms, or the functions of these rooms. So the family either tends to change its
house to fit its needs, and that exhausts it socially and financially. They made adapt their house with the
family constant needs, and here comes the importance of achieving flexibility as the best economic solution
that reduces the value of the house, of it, by providing the efficiency of the best use of the whole spaces.
In addition, the role of flexibility is to respond to the social stability of families by the best use of the whole
time age of their houses.
This research handles the concept of design flexibility as one of the most economic housing standards in
the thesis of the most important architects , and goes through steps of applying it in the house functionally
and structurally in the designing phase by effective interaction between the designer and the user side by
side.
Software Defined Radios (SDR) are highly configurable hardware and
software platforms that enable the implementation of the rapidly expanding
3G and 4G digital wireless communication infrastructures. Many
sophisticated signal processing tasks are
performed in a SDR platform, for
example: channel estimation, equalisation, forward error correction,
adaptive antennas, rake receiving, modulation, advanced compression
algorithms, and vocoding.
في هذا البحث تم تصميم برنامج خوارزمية تشفير وتنفيذه للبيانات المنقولـة عبـر شـبكة
حاسوبية حيث كُتب البرنامج بلغة C . و صممت هذه الخوارزمية لتكون معقدة و ذات سـرية
مرتفعة، حيث استخدمت خليطاً من خوارزميات التشفير المتناظرة و غير المتناظرة بالإضافة
إ
لى وضع خوارزمية خاصة لتوليد مفتاح التشفير توليداً معقداً و عشوائياً و هذا ما جعل أيـة
بيانات منقولة عبر الشبكة و كذلك مفاتيح التشفير المتبادلة بين أطراف الشبكة عصية بشكل
كبير جداً على أية محاولة لكشفها و معرفة محتواها. و هكذا نكون قد أمنّا السـرية و الأمـن
للبيانات المنقولة عبر أي شبكة تستخدم هذه الخوارزمية.
يعد وجود التكلسات الميكروية العنقودية في صور الماموغرام أحد المؤشرات المبكرة لمرض
سرطان الثدي. تظهر التكلسات على شكل جزيئات لامعة مختلفة الأشكال و الأحجام و قد
توضعت على الخلفية الشعاعية لنسيج الثدي. يتّبع الطبيب مرحلتين في أثناء تحديد هذه الآفة:
١ - الكشف عن وجود تكلسات ميكروية في صورة الماموغرام، ثم ٢ - فحص كيفية توزع
هذه التكلسات.
طورت خوارزمية من أجل الكشف الآلي بحيث تُشابه طريقة الطبيب في تحديد آفات التكلسات
الميكروية العنقودية. تُنفّذ الخوارزمية مبادئ فصل التراكيب ذات الطاقة العالية و مبادئ
تحليل التوزع البنيوية.
The paper begins with an introduction that describes the concept and
importance of power system security. The mathematical model is built
depending on both the linear load flow technique and the sensitivity
factors for line and generation outages.
The algorithm has been designed
so that a power system of arbitrary bus number and voltage levels can be
studied. This algorithm has been programmed in Borland Pascal in
interactive mode, and the developed program has been tested on several
test systems. The Program has been used for security assessment of a part
of the Syrian 230 kV network. The obtained results have shown the
validity and effectiveness of the program in spite of using linear models.
It is worth saying that the developed program is the first one for security
assessment in Syria so far.
The Seismic design for nuclear facilities has been subject of complex
analysis of the type usually performed for nuclear power plants. For the
purpose of ensuring seismic safety for nuclear facilities with limited
radioactive inventory, a simplifi
ed approach was adopted by the IAEA
safety guides with emphasis on appropriate construction and detailing
principles rather than sophisticated dynamic analysis. This work presents
the equivalent static approach, with an application for a frame element, a
dynamic analysis is also achieved using a computer program (DRAIN –
2DX) with real (time – history earthquake) for the purpose of
comparison, the results lead to some observations and notes which have
to be taken into account for the seismic safety design.
إن بعض أجهزة قياس الغزارة التي تعتمد في عملها على قياس تواتر الدوامات التي تتشكل خلف حاجز
مغمور في السائل تكون كثيرة الدقة عندما يتم قياس تواترها عن طريق قياس عدد الدوامات التي تؤثر
في صفيحة مستوية متوضعة ضمن السياج المتشكل خلف الحاجز.
و بذلك نستط
يع اعتماد عدد ستروهال جديد ثابت مستقل ليس له علاقة بنسبة التضـايق
و لقـد درست الخصائص المميزة لهذا الجهاز في الحالتين: الجريان المستمر و الجريان غير المسـتمر و هـذا
الجهاز يستخدم كجهاز قياس عددي.
The increasingly growth of population led to an increase in the number of
different industrial plants and to arise in their productive capacity which led
to the formation of large quantities of waste products in their gas, liquid and
solid forms.
These waste products led , in turn , to pollute the air , water and soil. This pollution
endangers the whole environment.
In this paper we studied one of the aspects of waterpollution used in chemical
fertilizers factories and the ways of treatment stations designing and the great
role played by these stations in diminishing the great damage caused to rivers ,
lakes , seas and water –store. This has positively a good effect on environment
and economy in general.
It is necessary to operate the used-water treatment stations and recycling this
water after purifying and refining it within the closed-circuit system effectively
and by using modern computerized techniques concerning design , operation and
investment.
This study is of four chapters and a list of references.
The first chapter includes a short glimpse about the treatment stations and their
main lines concerning design and distribution.
The second chapter is about the sections of the phosphate fertilizers factories and
about the acidic water resulting from these sections.
The third chapter gives a glimpse about the treatment of polluted water in the
phosphate fertilizers factory.
The fourth chapter includes the practical section with some designs and results.
Finally , a list of the arabic and foreign references.
Building a photovoltaic system is the process of designing,
selecting and calculating the ratings of the equipment’s employed in
the system. This process depends on a variety of factors such as
geographical location, solar irradiation, and load re
quirements. this
paper presents a practical way to calculate the elements and
components of the Stand-Alone PV energy system, And procedure
an economic analysis for the system, will allow GUI designed by
MATLAB knowledge of these components depending on the
efficiency of the Inverter, power solar panels and capacity of
batteries in local market, taking into account the climatic factors and
hours of solar radiation in the system installation area, as well as the
cost of the system and the payback time.
The research aims to highlight the design elements of the climate of
the store, and drew attention to the need for attention to shops
climate design commensurate with the event and occasion.
According to the search results that the variables in th
e design of the
climate of the store, such as music, colors, lighting, has a positive
impact on the consumer to stimulate the purchase (impulsive
consumer purchase), but the design of the climate of stores in the
city of Damascus are not according to accurate study of the
suggestions and desires of consumers and characteristics of the
consumer, and looking consumer Syrian marketing for an enjoyable
experience, especially on special occasions, and this experience
circulating among consumers during the event period.
