10 research outputs found
An Intelligent technical analysis using neural network
Technical analysis has been one of the most popular methods for stock market predictions for the past few decades. There have been enormous technical analysis methods to study the behavior of stock market for different kinds of trading markets such as currency, commodity or stock. In this paper, we propose two different methods based on volume adjusted moving average and ease of movement for stock trading. These methods are used with and without generalized regression neural network methods and the results are compared with each other. The preliminary results on historical stock price of 20 firms indicate that there is no meaningful difference between various proposed models of this paper
Chaotic behavior in Casimir oscillators: A case study for phase change materials
Casimir forces between material surfaces at close proximity of less than 200
nm can lead to increased chaotic behavior of actuating devices depending on the
strength of the Casimir interaction. We investigate these phenomena for phase
change materials in torsional oscillators, where the amorphous to crystalline
phase transitions lead to transitions between high and low Casimir force and
torque states respectively, without material compositions. For a conservative
system bifurcation curve and Poincare maps analysis show the absence of chaotic
behavior but with the crystalline phase (high force/torque state) favoring more
unstable behavior and stiction. However, for a non-conservative system chaotic
behavior can occur introducing significant risk for stiction, which is again
more pronounced for the crystalline phase. The latter illustrates the more
general scenario that stronger Casimir forces and torques increase the
possibility for chaotic behavior. The latter is making impossible to predict
whether stiction or stable actuation will occur on a long term basis, and it is
setting limitations in the design of micro/nano devices operating at short
range nanoscale separations.Comment: 30 pages, 13 figure