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Browsing Masters Dissertations : Laser by Issue Date

Browsing Masters Dissertations : Laser by Issue Date

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  • Comparative Study of Emulsion Qualities of Sudanese Gums Using Laser Light Scattering 
    Satti, Amira Abd El-Aziz El hassan; Supervisor, - Elfatih Ahmed Hassan; Co - Supervisor, - Nafie Abd Al-Lattief (Sudan University of Science and Technology, 2004-12-01)
    This study proposed and tested a simple, yet highly effective, and fairly accurate laser light scattering system for evaluation of emulsion’s functionality of emulsifying agents and their blends. The laser light scattering ...
  • study of Microbending effect on Laser communication as pressure Sensor 
    Ali, Essam Elgeily Ahmed; Supervisor, - Mubarak Almahal Ahmed (sudan university of scince and technology, 2004-12-16)
    The microbending is one of the passive processes that are undesired in the optical communication field. That is as it affects –during communication- in attenuating signal and noises the optical fibers. But it might be ...
  • Nondestructive Testing Using Laser Holography to Detect Arc-welding Defects 
    Ahmed, Gaffar Abdo Al hamed Mohammed; Supervisor, - Atta Abdalla Fadlalla Co - Supervisor, - Nafie Abd Al-Lattief (sudan university of scince and technology, 2005-01-08)
    Plates of mild steel, welded by arc-welding, had been tested using laser holography technique for inspecting the welding defects: cracks, porosity and inclusions in these plates. Also the same specimens had been inspected ...
  • Design and construction of a controlled Laser Switch 
    Abass, Mohammed Margani Rashed; Supervisor, - Mubarak Almahal Ahmed (sudan university of scince and technology, 2005-02-04)
    ‫A laser control system was designed and constructed in this work. Diode laser with wavelength 670nm and output power 1mW was used to operate the 555 timer and JK flip-flop for a different time intervals. The time high ...
  • IRRADIATION EFFECT OF He -Ne LASER ON THE BACTERIA CAUSING URINARY TRACT INFECTIONS 
    Ebrahim, Mona Mohamed; Supervisor, - Nafie Abd Al-Lattief; Co - Supervisor, - Samia Ahmed Gumaa (sudan university of scince and technology, 2005-03-01)
    * This study aimed to determine the effect of He-Ne laser 10 mW and 632.8 nm wavelength on bacteria that can cause Urinary Tract Infection in the presence of the photosensitizers. Toluidine blue(TBO) and crystal ...
  • Study of Kerr effect on the transmission of He-Ne laser through atmosphere 
    Malik, Gamal Ahmed; Supervisor, - Ahmed H-Sabahalkheir (sudan university of scince and technology, 2005-05-10)
    This work aimed to study the Kerr effect on the transmission of He-Ne laser through atmosphere. Kerr cell was used as a modulator to modulate the signals that had been generated from a signal generator. The cell is ...
  • Production of polyacrylamide from monomer using laser 
    El-ameer, Abeer A. E. El-ameer; Supervisor, - Mohmmed A. Elkareem; Co-Supervisor,-Nafie A. Almuslet (Sudan University of Science & Technology, 2005-06-05)
    This work aims to study visible laser-induced polymerization of acrylamide. Three individual drops of the polymerization mixture were irradiated with He-Ne laser-emitting at 632.8 nm with output power of 1mW-for different ...
  • Design and construction of Laser diode driver 
    Abd-Elgalil, Hysam Hassan; Supervisor, - Abdel rasoul Jabar Alzubidi Co-Supervisor, - Ahmed sabah Elkher (sudan university of scince and technology, 2005-12-05)
    In the recent years semiconductor laser substitute the others types of laser in many fields and that is due to it is simplicity and easy to use. The main idea of this thesis is to design and construct of laser diode driver. ...
  • COMPARITIVE STUDY BETWEEN LOW LEVEL LASER THERABY AND CHLORHEXIDINE ON TREATMENT OF GINGIVITIES 
    Saqer, Buthaina Amin; Supervisor, - Nadia Ahmed Yahia Co - Supervisor, - Mahdi A.Suker (sudan university of scince and technology, 2006-01-05)
    The high level laser therapy (HLLT) treatment in dentistry have been assured as a very successful method, but the low level laser therapy (LLLT) is still limited and under researches. In this study a compare ...
  • Evaluation of Nd:YAG Laser Cutting of Non-metallic Materials 
    Beteik, Mohammadi Hassan Mohammadi; Supervisor, - Nafie Abdel Latif CO - Supervisor, - Abdel-Karim Babiker Haroun (sudan university of scince and technology, 2006-02-01)
    In this work, which was done in two phases, Nd: YAG Lasers were chosen to be the tool for cutting 2mm thick commercial Perspex sheets. In phase one, pulsed laser output from the YAG-50 Laser Scribing Machine was used ...
  • Enco transmission via optided voicecal fiber 
    Elbadawi, Mutaz Abdalla; Supervisor, - Saad Daoud Sulieman CO - Supervisor, - Mubarak AlMahal Ahmed (sudan university of scince and technology, 2006-03-01)
    In this work, the RSA (Rivest, Shamir, Adelman) cipher system was implemented by software. The data in form of speech waveform have been recorded by using a computer microphone. These digital speeches were encrypted, ...
  • Design, Fabrication and Testing of Thermistor Detector 
    Maruod, Abbas Babiker Ali; Supervisor, - Kasim M. Al-Hity Co - Supervisor, - Yahia Abdulla Mohamed (sudan university of scince and technology, 2006-03-01)
    Abstract The main idea of this thesis is to design and fabricate an infra-red detector, specially the disk type of NTC thermistor. And to test it’s operation and response to different levels of laser power . The challenge ...
  • Hardness Improvement of Teeth Filling Material (Amalgam) by Using He-Ne Laser 632.8nm and Diode Laser 675nm 
    AHMED , HALA JAFAR ALAMIN; Supervisor,- BABIKER OSMAN ElBASHIR (sudan university of scince and technology, 2006-05-01)
    In this research we are studied the hardness of the amalgam teeth filling material by utilizing Brinell harness test apparatus. Several tests were carried out on different amalgam mixtures that were subjected to irradiation ...
  • Surface Hardening of Carbon Steels by High power CO2 Laser 
    Ahmed,Abdel Salam Elshiekh Idris; Supervisor, - Nafie Abd Al-Lattief Co -Supervisor,- Sabir Mohammed Salih (sudan university of scince and technology, 2006-05-01)
    In this work surface hardening treatment of carbon steel specimens, that having a carbon contents ranging between 0.25 and 2.44%, was done using CO2 laser having 10.6μm wavelength, 100μm spot size and with powers ranged ...
  • Design and implementation of remote switching circuit utilizing I.R laser 
    Abdelgadir, Abdelkarim Mohammed; Supervisor, - Nafie Abd Al-latif; CO - Supervisor, - Osman Mohammed Dafallah (sudan university of scince and technology, 2006-08-05)
    The aim of this work is to design and implement a circuit that can be switched by infrared laser (IR) source. The function of IR laser is to carry the binary coded control signal to a receiver location at which the ...
  • Metals Soldering by Nd:YAG Laser and Conventional Method a comparative study 
    Abu Elnuor, Abu Elnuor Abdeen Ali; Supervisor, - Nafie Abdel Latif CO - Supervisor, - Sabir Mohammed Salih (sudan university of scince and technology, 2006-10-01)
    This research aimed to compare between two soldering techniques, conventional and laser methods. Metallic pieces were joined in two ways: butt and overlap as known soldering designs. The test pieces were soldered manually ...
  • Utilization of Different Laser Systems to Determine the Optical Properties of Chloroform and Rhodamine 6G Thin – Films in Nanometer Scale 
    Mohammed,Suliman E. Elhadi; Supervisor, - Nafie Abd Al. Latif (sudan university of scince and technology, 2007-09-01)
    In this work thin films were produced from (Chloroform and Rhodamine 6G) deposited on glass substrate that has a thickness (1mm) and refractive index (1.3) in a vacuum chamber firstly; without heating (at room temperature) ...
  • Annealing of some diodes and trimming of carbon resistors using CW Nd 
    Ibrahim, Saad El-Din El-Sadig Mohammed; Supervisor, - Nafie Abdel Latif Supervisor, -co-Abdalla Salih Ali (sudan university of scince and technology, 2007-09-01)
    In this work, the I-V characteristics of the silicon diode were investigated by applying 5W from CW Nd: YAG laser for 10, 20, and 30 seconds, respectively. The results showed that different exposure times changed the ...
  • The Optical Fiber Electrical Current Sensor 
    Ahmed, Sulieman Eldoud Bashir; Supervisor, - Mubarak Almahal Ahmed Co - Supervisor, - Eisa Bashier Mohammed (sudan university of scince and technology, 2007-09-01)
    In this work an optical fiber current sensor was designed and implemented using helium-neon laser (with wavelength of 632.8 nm and power of 1 mW) as light source, single mode fiber based sensing element and photomultiplier ...
  • Design & Implementation of Optical Fiber Liquid Level Sensor Using He-Ne Laser 
    Elmahi, Sulafa Omer Elghorashi; Supervisor, - Abdelmoneim M. Awadelgied Co - Supervisor, - Mohmmed H. Abuuznien (sudan university of scince and technology, 2007-09-01)
    One of the difficult duties in chemical industrial units is the determination of the level of liquid for real – time monitoring. Determination of this parameter is useful in process control loop. Hence present study is ...

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