This essay studies the relation among current, turns of coil and electromagnetic field in order t... more This essay studies the relation among current, turns of coil and electromagnetic field in order to investigate what causes to electromagnetic field production in cell phone chargers. The research is conducted with a closed circuit including a rheostat and a coil. Change of the electromagnetic field's magnitude has been observed by changing the total current in the circuit and the turns of coil. The current was systematically increased in order to observe the change in electromagnetic field. The change is observed with each magnitude of current for different turns of coils to prove the expected uniform increase in electromagnetic field. The results were recorded by electromagnetic field sensor probe and current probe. Comparison of the results of experiments was used to find the relation of current and electromagnetic field. The result of each experiment was compared with the mathematical concept of Ampere's Law to prove suggested mathematical formula. The research showed that there is a relation among current, turns of coil and the electromagnetic field. Uniform increase in electromagnetic field has been observed when the current and number of turns of coil is systematically increased. Considering that the cell phone chargers are carrying coils, it could be stated that they produce electromagnetic field directly proportional to current. Also, the electromagnetic field that is produced by the charger is directly proportional to the turns of coil that it includes.
Along with the recent advancements in video streaming, concerns over the security of transferred ... more Along with the recent advancements in video streaming, concerns over the security of transferred data have increased. Thus, the development of fast and reliable image encryption methodologies has become an emerging research area in the field of communications. In this paper, a systolic array-based image encryption architecture is proposed. Systolic arrays are used to apply the convolution operation, and a Lü–Chen chaotic oscillator is used to obtain a convolutional filter. To decrease resource consumption, a method to fuse confusion and diffusion processes by using systolic arrays is also proposed in this paper. The results show that the proposed method is highly secure against some differential and statistical attacks. It is also shown that the proposed method has a high speed of encryption compared to other methods.
This essay studies the relation among current, turns of coil and electromagnetic field in order t... more This essay studies the relation among current, turns of coil and electromagnetic field in order to investigate what causes to electromagnetic field production in cell phone chargers. The research is conducted with a closed circuit including a rheostat and a coil. Change of the electromagnetic field's magnitude has been observed by changing the total current in the circuit and the turns of coil. The current was systematically increased in order to observe the change in electromagnetic field. The change is observed with each magnitude of current for different turns of coils to prove the expected uniform increase in electromagnetic field. The results were recorded by electromagnetic field sensor probe and current probe. Comparison of the results of experiments was used to find the relation of current and electromagnetic field. The result of each experiment was compared with the mathematical concept of Ampere's Law to prove suggested mathematical formula. The research showed that there is a relation among current, turns of coil and the electromagnetic field. Uniform increase in electromagnetic field has been observed when the current and number of turns of coil is systematically increased. Considering that the cell phone chargers are carrying coils, it could be stated that they produce electromagnetic field directly proportional to current. Also, the electromagnetic field that is produced by the charger is directly proportional to the turns of coil that it includes.
Along with the recent advancements in video streaming, concerns over the security of transferred ... more Along with the recent advancements in video streaming, concerns over the security of transferred data have increased. Thus, the development of fast and reliable image encryption methodologies has become an emerging research area in the field of communications. In this paper, a systolic array-based image encryption architecture is proposed. Systolic arrays are used to apply the convolution operation, and a Lü–Chen chaotic oscillator is used to obtain a convolutional filter. To decrease resource consumption, a method to fuse confusion and diffusion processes by using systolic arrays is also proposed in this paper. The results show that the proposed method is highly secure against some differential and statistical attacks. It is also shown that the proposed method has a high speed of encryption compared to other methods.
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