ODE Solver and Optimization Essay Example | Topics and Well Written Essays - 1000 words

ODE Solver and Optimization - Essay Example Lately engineers have developed new algorithm design capable of reducing these damages due to earthquake in tall buildings. The new structures control techniques such as passive control system, active control system and semi active control system giving special importance on improvement of wind and seismic responses of buildings and bridges. The advantage of passive control systems is that it doesn’t require any power supply. Active control systems require external power supply and operate based on sensors which are attached within the structures (Attard, 2007). The new algorithm design is able to minimize potential damages out of control with tall story buildings. The algorithm is set through a gradient-based optimization approach that simultaneously controls all inter-story displacements in nonlinearly degrading buildings made of metal like steel. One key component of this algorithm lies on the use of optimal vicious dampers. The methodology and computation of the optimal damping ratios are done for each mode of vibration in a way that the sum of the errors between the inter-story displacements and the new calculated using the algorithm method is minimized. To find the size and location of the damper devices, a representative damping formulation is used where the members of the buildings are assumed to reduce exponentially according to a formulation of algorithm based model behavior of the strain property of hardened materials. The sensitive experiments of the algorithm design using different types of the story buildings show remarkable a bility of the model to reduce the errors in tall buildings. For example a ten story building and eight story were evaluated which showed that building were able to respond at significant higher modes of vibration. In the 8 story building, the vibrations are significantly reduced. However some modes remained over-damped with some remaining marginally damaged. For the 20-story, the algorithm is applied in

Evil in St.Augustine's Confessions Essay Example | Topics and Well Written Essays - 1500 words - 1

Evil in St.Augustine's Confessions - Essay Example He proposed many interesting arguments. This theme was important for Augustine as he was very sinful until realized the essence of God and religion. His theory is very valuable as it serves as the basis for Christian knowledge. However, as every theory, the ideas of Augustine is not fully accepted and actively criticized. The presence of good and evil in the world is obvious, but what are the relations between them? Many experts emphasize the conflict between good and evil. The main statement of St. Augustine is that evil is simply the absence of good. This presumption has a long history. It is a well known fact that St. Augustine was initially a Manichean and became Christian only after he realized the drawbacks of Persian Dualism religion- Manichaeism. The main idea of this religion lies in the belief in two gods, who represent good and evil. In this religion we can see the struggle between the light and darkness. St. Augustine scrutinized Christianity and rejected Manichaeism. He claimed that in this world there could be only one god, a good one. God and the world that he created are the main aspects of the philosophy of Augustine and the relations between them deserve special attention. Augustine argued that the world is the creation of God, God does not depend on the world and the world is fully dependent on God. Creating human soul, God initially incorporated in it the striving for happiness as the main goal in a man’s life. That is why a man must use all the abilities of his soul to achieve the happiness. Happiness itself consists in the maximum cognition of God and in this case the human reason becomes the main basis for belief. That is why belief is the foundation and the initial point for cognition. Cognition without the belief is sinful. The supreme form of cognition is divine inspiration given by God to humans, who have strong belief. This