Due to the tremendous increase in the amount of digital data, effective large scale data classification is playing an increasingly important role. In active learning algorithms a “classifier” is used to classify the unlabeled data. To ensure reliable performance of the classifier, it must be trained using a number of labeled examples, or the classifier’s...

Carotid Intima-Media Thickness (CIMT) measurement with B-mode ultrasound is a noninvasive, sensitive, and highly reproducible technique for cardiovascular risk stratification. Studies have shown that CIMT measurement is correlated with cardiac risk factors and can be used as an independent predictor of future myocardial infarction and stroke risk....

A buck converter is a step down DC/DC converter used in portable electronic devices to convert higher DC voltages to small voltages necessary to function. Lossless load current sensing ability is one of the most desirable features of contemporary current or voltage mode controlled DC/DC converters. Recently, current sensing techniques in DC/DC converters...

There is a continuing need for high-level device security to transfer information on penetrable channels, track the device and data, and encrypt valuable data, whether for national security purposes, intellectual property, or company and individual privacy. Obtaining a unique signature for an integrated circuit can be an excellent tool to achieve...

The hearing threshold is defined as the lowest sound levels that a listener can detect. Finding accurate hearing threshold is one of the critical parameters in hearing loss diagnosis and hearing aid. However, current methods of testing suffer from various problems. One of the main problems is accuracy. Several contributing factors of inaccuracy...

Er-doped silicon and silicon-rich silicon oxide have been investigated extensively for the potentially important applications in Si-compatible photonic devices such as silicon-based lasers, or optical amplifiers, owing to the fact that the emission wavelength of 1.53 µm lies in the minimum loss region of silica-based optical fibers. However the...

Blogging as a medium for communication, sharing, and collaboration on the Web is growing in popularity. With the introduction of Web 2.0 applications, web users no longer just play the role of information consumers, but also participate in information production. The Blogosphere, home of all blogs, is a stage where virtual communities with similar...

Face Recognition has been a highly active research area for many years for its wide potential applications, such as law enforcement, security access, and man-machine interaction. The existing techniques have reached maturity in their capability but cannot still fully address practical challenges including the problem of recognition under varying...

Development and refinement of surgical skills of novice surgeons is critical and time consuming processes. Demand for better performance and accountability has resulted in shifting the focus of training from subjective to objective evaluation. Modern surgeon training techniques are moving towards a ‘hands-on’ approach and eliminating the process...

The FIRST software (Floppy Inclusions and Rigid Substructure Topography) was developed by researchers at Arizona State University for analyzing conformations of proteins and other biomolecules. This software uses patented algorithms for identifying rigid and flexible regions within proteins and other biomolecules of thousands of residues in a...