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In this work, possible optimization techniques for realization of asymmetrical and symmetrical standard cryptographic algorithms on assembler of Texas Instruments TMS320C54x family of digital signal processors are considered. Optimization of RSA asymmetrical, as well as IDEA and AES (Rijndael) symmetrical algorithms are evaluated. Possible optimization techniques for RSA algorithm are related to multiplication,...
The goal of the project is to create a new solar aircraft totally powered by the sun. The aircraft power train will consist of solar cells placed on the wings, the energy storage system, the energy management electronics, the brushless DC motor and propellers. The aim of this paper is to present the method to optimize the motor together with the propellers, in order to save the maximum of energy in...
We present an analysis of an electromechanical implantable glucose sensor for continuous glucose monitoring. An efficient 3D numerical model to accurately compute the torques, forces and the induced voltages for ironless actuators of any geometrical form is developed. The algorithm is based on the generalized Biot-Savart law and the permanent magnet equivalent current density model
An original analytical determination of the force acting on the moving coil in an electromagnetic actuator is presented. The actuator magnetic field is solved analytically using the Schwarz-Christoffel (SC) mapping. The SC integral is solved analytically using the elliptic functions. The results are verified using FEM
A new formulation to calculate the internal and external inductances, the resistance, the Joules losses and the cut frequency in a 3D circular cross-section coil structure, with or without skin effect is presented. The formulation is obtained from the Maxwell's wave equations. The results are presented in graphical form as function of frequency and/or radius wire
This paper presents a method to model and optimize brushless DC motor for a solar airplane. In order to obtain the optimal solution for the given specifications, all free parameters are analyzed globally in one go. For this, the commercial optimization software Pro@Design is used. The method is fully analytical and deterministic. The actual multiphysics model comprises electromagnetic, thermal and...
In order to create a new solar aircraft totally powered by the sun, a new method able to handle such a complex system must be developed. The project aim is to make a round-the-world flight in order to promote the sustainable development. The aircraft power train will consist of solar cells placed on the wings, the energy storage system, the energy management electronics, the brushless DC motor and...
Outcomes assessment is now an integral part of the ABET accreditation criteria. The process to implement an automated on-line area level assessment test that helps meet ABET requirements is discussed. Selection of appropriate technology, online test questions generation and administering the test, initial implementation results and future work are discussed
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