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The source of the signal that the system uses is termed as the Gunn Oscillator, which is at a signal of 10.5 GHz. the maximum output power that is recommended for the frequency ranges between 20 Mw to 10 Mw, and the recommended range may vary from time to time in different Gunn Oscillators. The output power may as well be varied by varying the voltage supplied that is received by the Gunn Oscillator via the unit cable attached to it (Campanella 2010).
The devise consists of an adjuster, which helps to regulate the level of the power at the microwave point of input and in making of the measurements of the attenuator. This assignment makes use of the side-vane attenuator that uses the fiberglasses that are plastic in nature having resistive coatings in order to achieve the required attenuation. The fiberglasses are erected vertically with respect to the wave-guide and to the short walls in a parallel manner. The position of the blades on the wave-guide dictates the resulting attenuation of the whole system. Each attenuator is calibrated separately due to differences in the attenuation characteristics.
Wave-guide support is a system component that acts as a stand and helps in the system stability. The system supports are in parts, one of the supports is the system base while the other is the plastic piece that is attached to the rod end. Wave-guides can be connected to the support by placing it gently onto the plastic piece of the system located on the rod top. The height of the system support is adjustable with the help of setscrews located on the base of the system.
For the sake of this assignment, cross-guide couplers were used which consist of two- waveguides that are joined to one another at an angle of 90 degrees. Signals of the microwave that propagates from waveguide couples with microwave signals and finally dictates the coupled signal propagation. Two openings are recommended on the walls. These openings should be
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Finally the possibility of using either a solar panel or a fuel cell to power small motor with fan blade has been described. Contents Abstract 2 List of figures 4 Introduction 5 Materials and Methods 6 Preparation of the Electrolyzer Module and Solar Powered Hydrogen Production 6 Using the Battery Pack to Perform Electrolysis (in the case of no sun) 9 Using a Reversible Fuel Cell to Power the Small Motor with Fan Blade 10 Figure 7 Assembling electrical fans 10 Figure 8 Connecting the motor to reversible fuel cell 11 Using a Solar Panel to Power the Small Motor with Fan Blade 11 Figure 9 Using solar panel 11 Solar hydrogen education kit technical support 12 Conclusion 13 References 14 List of
This experiment will detail how molecules in a solution travel from places where they are in high concentration to areas where their concentration is low. The mock-up membrane is made from dialysis tubing. The Viking tubing will increase in mass in all instances of the experiment, showing that osmosis occurred.
By accident, several years later, it was discovered that microwaves also cook food. Called the Radar Range, the first microwave oven to go on the market was roughly as large and heavy as a refrigerator.
The idea of using microwave energy to cook food was accidentally discovered by Percy Le Baron Spencer of the Raytheon Company when he found that radar waves had melted a candy bar in his pocket.
But the Radio-over-Fibre configuration makes it possible to have all the signal processing functions to be performed at one location called the headend. The signal is then transmitted over optical fibre to the Remote Antenna Unit. The fibre is such that it offers low signal loss of 0.3 dB/km for 1550 nm, and 0.5 dB/km for 1310 nm wavelengths(Ng'oma, 18-23).
In diploid organisms, there may be two different forms of the gene.(Enger 2005) These alternative forms are called as alleles. There may be 2 diferent alleles in a gene located at the same locus. The set of all these genes in an organism is termes as genome. The genotype is
It has long been known that the two hemispheres of the brain are anatomically identical, separated only by a fibrous commissural band (corpus callosum) that is responsible for communication between the two hemispheres. However, studies on brain function and physiology show that
The experiment was conducted in the university’s psychology building. 24 undergraduate students were chosen to play the role of prisoners and prison guards. They were selected from a large group of 70 volunteers who had no medical conditions, criminal record or any