"Indoor Airbiocontaminants and Suspended Dust Levels In Orman School Building"

Dr. Abdel Hameed A. Awad Researcher, Air Pollution Dept. National Research Center, Dokki, Egypt.

Walaa Mahmoud	Sarah Adel	Mohamed badr

Abstract

Airborne dust, bacteria and fungi levels were determined inside four classes at Orman School building, Maadi, Cairo. Airborne dust was found at a mean value of 196 mg m^-3 indoor whereas it was detected at a mean value of 361 mg m^-3 outdoor. Airborne bacteria was recorded at a mean value of 3.51x10³ colony forming unit (cfu) m^-3. Gram positive bacteria were prodominant indoor. These types indicate overcrowding and inadequate ventilation. Fungi levels were recorded at a mean value of 3.03x10² cfu m^-3 inside classes. Pencillium, Cladasporium, Aspergillus and Yeasts were dominant isolates.

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"Testing of Hand Pumps Water in an Egyptian Village"

Dr. Ahmed El Sawi Shoukry Professor of Chemistry at Suiz Cannal University, and Former Chairman of the Board of the National Organization of Drug Control and Research.

Dr. Mahmoud El Marsafy

Amira Hany	Ahmed Yehya	Sarah Abdel Hamid

Abstract

A village was chosen as the project site. 12 samples were collected, 9 from the hand pumps, 1 from the village tap, 1 from the city tap, and 1 from bottles as reference. 4 experiments has been conducted and confirmed by being conducted in a specialized firm. The results were consistant and showed that the Total Dissolved Solids rise in some samples to dangerous levels. Microbiological testing, and analysis for Nitrates are strongly suggested as a continuation for this project.

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"Creating a Database Program For the Orman School Library Using Visual Basic 6.0"

Dr. Ahmed El Sawi

Salma Naser	Karim Mohamed	Yasmin Tarek	Ahmed Badawy

The Project

A database program was designed and created using Microsoft Visual Basic 6.0. The program documentation presents the program's screens and how they are used. The program was provided by means of creating a new database file whenever that is found necessary. The data entry screen was provided by two browsing buttons that allow the user to browse among the entered books. Editing the entered data as well as entering new books are allowed at any time.
We had no previous knowledge of programming in Visual Basic, so we were learning while doing. In order to meet our deadline, the Book Search function was postponed to be included in the next version of the program. The program was packaged in order to be delivered on two installation flopies and its use was kept very simple so that it will only need minimum training before it can be used.

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"Building a Simple Electric Motor"

Dr. Nasr Zeinhom Professor at the Faculty of Engineering - Matareyya Helwan University.

Ingy Ashraf	Mona Wafaay	Ziad Ibrahim

Introduction

An Electric Motor is a machine which converts electric energy into mechanical energy. Connecting electricity from a battery or a power source to a motor results in making the shaft start to spin around. There are motors which are powered by a DC (direct current) source such as a battery, and motors which are powered by an AC (alternating current) source. Although there are many designs of electric motors, the principal is the same.
Two related physical principles underlie the operation of motors. The first is the principle of electromagnetic induction discovered in 1831 by the British scientist and inventor Michael Lardy. It states that: if a conductor is moved through a magnetic field or if the strength of a magnetic field passing through a stationary conducting loop is made to vary, a current is set up or "induced" in the conductor. The second is the converse of this principle which is that of electromagnetic reaction, observed by the French physicist Ander Marie Ampere in 1820.
So, when you have an electric current carried through a conductor such as a length of copper wire placed in a magnetic field, this wire will experience a force. By winding the conductor with many coils in precise positions and electrical connections, the created force will make the coil turn. When the coil turns, the shaft of the motor will turn.

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