The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper reports the design and simulation of microelectromechanical (MEMS) piezoresistive accelerometer used in a strapdown inertial measurement unit (IMU) for detection of pathological tremor. There is a demand for high performance micromachined accelerometer to build a reliable tremor diagnostic system. The performance mainly depends on geometric design, device sensing mechanism with respect...
This paper concerns the theory behind developing a brain computer interface (BCI) and the applications of such a system. Signal acquisition methods such as Functional Magnetic Resonance Imaging (fMRI), Near-Infrared Spectroscopy (NIRS), Magnetoencephalography (MEG), Electrocorticography (ECoG), and Electroencephalography (EEG) are discussed. There is also a review of the different types of Event Related...
Extended maximum average correlation height (EMACH) filter is generated from representative training images of expected target, and is designed to keep a balance between distortion tolerance and clutter rejection capability in target detection and tracking. However, in some cases it fails because of blurred target signature, similarity with background and clutter objects, and other distortions. Experimental...
Technology-rich schools generate impressive results for students such as higher test scores and job placement rates. While some existing commercial tools can leverage these advantages, they still lack some components key for adequate use in classrooms, like open educational resources and a constructive feedback system available on a mobile platform. To address these shortcomings, a software architecture...
Biometric technologies have been used for a long time, but each type of biometrics has its own benefits and flaws. In this paper we will discuss the current types of biometrics and biometric systems, their benefits and issues. We will also present the results of several experiments with such biometric technologies as facial and voice recognition that will show how effective they are and if it is worth...
The voltage profile on a distribution circuit is becoming more difficult to maintain as more dynamic generation, such as solar, is connected. A high penetration of solar generation can lead to increased voltage deviations which, in turn, can increase the number of operations on expensive distribution automation equipment. This paper analyzed a new approach to mitigate voltage fluctuations. The voltage...
In a typical temperature sensing device, sensed temperature of an area is recorded and is adjusted based upon the preset values, using a fan or a thermostat. Most of the time, the temperature of one part of an area is measured and the adjustment is performed according to that single reading which may lead to an inaccurate and inefficient cooling or heating procedure especially if the temperature of...
This paper is an overview of various satellite formation tracking control techniques using higher order and adaptive sliding mode control. The relative motion between the leader and the follower satellites were determined using Hill's equations. Higher order and adaptive control techniques were implemented to maintain the desired trajectory for the satellite formation in the presence of multiple perturbations...
Source code authorship attribution is the task of determining the author of source code whose author is not explicitly known. One specific method of source code authorship attribution that has been shown to be extremely effective is the SCAP method. This method, however, relies on a parameter L that has heretofore been quite nebulous. In the SCAP method, each candidate author's known work is represented...
A prototype Dynamic Spectrum Access (DSA) system is implemented, for ease of implementation, using the audio spectrum. In this setup, laptop PCs behave as two software defined radios (SDR), one a primary user (PU) and the other a secondary user (SU). The radios communicate digital information over the air, using the audio capabilities of standard soundcards. The PU, which is emulating the licensed...
Transient stability analysis of power systems involves the study of synchronism (through dynamic simulation) when the system is subjected to large disturbances within the transmission network, such as: load switching, loss of generators, loss of lines, or short circuit faults. One major problem in the above simulation is finding the initial values of the algebraic state variables involved in the simulation...
A novel rotary traveling wave oscillator (RTWO) is proposed to be an alternative architecture to generate THz signals for long distance high speed communication. As a preliminary work, the design of 110–152 GHz RTWO as the fundamental oscillators is reported in this paper. The transmission line ring, the n-transistor-only cross-coupled inverter pair (CCIP), and the bias-T for the oscillation have...
EcoCAR 2 is a three year competition sponsored by the Department of Energy, General Motors, and Argonne National Laboratories. The competition encompasses fifteen universities across North America. A 2013 Chevrolet Malibu is donated to each team where it is converted to an electric hybrid vehicle. EcoCAR 2 challenges students to reduce the Malibu's emissions, increase fuel economy, and maintain consumer...
Social Networking has changed the way people communicate and share information over the last decade. Today, over one billion people worldwide have signed up to share information over a social network. Likewise, eLearning has been utilized by academic communities since the 1990's to transcend learning across space and time to offer students an alternative to physical classrooms. Although many studies...
In this paper, the theoretical basis and developed hardware and software for an induction motor diagnostic system based on electrical signals analysis is presented. The theoretical principles underlying these methods are based on a spectral analysis of the stator current and motor power consumption signals. The hardware allows data measuring for different operating modes with different range of motor...
This paper discusses the security issues related to Bring Your Own Devices (BYOD) programs, an increasingly popular choice for small and big businesses alike, and explores the benefits, risks, the available controls and solutions to mitigate the inherent security concerns with mobile devices, in general, and BYOD programs specifically.
Parallel coupledline bandpass filters (BPF) are widely used in microwave systems. But their spurious harmonics deteriorate their stopband performances. An Optimum Bandstop Filter (BSF) is designed and used to suppress the first harmonics of a parallel coupledline BPF. Simulations show that the first harmonics of the BPF is suppressed for more than 30 dB with little disturbance to the passband.
There are several Independent Component Analysis (ICA) algorithms based on different approaches that are used to estimate the independent components, up to some precision, from a linear mixture of independent components as long as the independent components do not follow Gaussian distribution. Some approaches, however, work better than the other if data distribution and characteristics follow a certain...
Efficient parallel approaches for three popular 2D mesh smoothing algorithms (useful for improving finite element meshes) are presented. The approaches operate on commodity, programmable GPUs and use a single thread per internal vertex of the mesh to reposition those vertices to more optimal locations, according to the smoothing algorithms. The approaches use a custom data structure called a neighbor...
The concept of electrical capacitance tomography (ECT) was used to characterize the flow of water in a pipe. The technique is based on measuring capacitances from multiple electrodes alongside the surface of the fluid-containing pipe and correlating the measured capacitances to identify changes which could pinpoint the exact location of air bubbles positioned in the pipe. This enables the characterization...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.