SUPPORT VECTOR MACHINE FOR HIGH THROUGHPUT RODENT SLEEP BEHAVIOR CLASSIFICATION

This thesis examines the application of a Support Vector Machine (SVM) classifier to automatically detect sleep and quiet wake (rest) behavior in mice from pressure signals on their cage floor. Previous work employed Neural Networks (NN) and Linear Discriminant Analysis (LDA) to successfully detect sleep and wake behaviors in mice. Although the LDA was successful in distinguishing between the sleep and wake behaviors, it has several limitations, which include the need to select a threshold and difficulty separating additional behaviors with subtle differences, such as sleep and rest. The SVM has advantages in that it offers greater degrees of freedom than the LDA for working with complex data sets. In addition, the SVM has direct methods to limit overfitting for the training sets (unlike the NN method). This thesis develops an SVM classifier to characterize the linearly non separable sleep and rest behaviors using a variety of features extracted from the power spectrum, autocorrelation function, and generalized spectrum (autocorrelation of complex spectrum). A genetic algorithm (GA) optimizes the SVM parameters and determines a combination of 5 best features. Experimental results from over 9 hours of data scored by human observation indicate 75% classification accuracy for SVM compared to 68% accuracy for LDA

Comprehensive review on tooth avulsion and its management

Background: Of all the dental trauma injuries, avulsion is a serious problem and the prognosis of treatment depends mainly on the measures taken at the time of injury. Appropriate management of avulse tooth is necessary. Guidelines are important for providing best possible treatment for avulsion. Permanent anterior teeth avulsion occurs rarely and usually affects children about 7–8 years of age. On reimplantation or splinting of these teeth, inflammation, severe resorption, or ankylosis are seen which ultimately affect alveolar bone development and these reimplanted teeth sooner or later have to be extracted. Aim: This review aims to educate people as to what precautions to be taken for avulsed tooth and the line of treatment. Conclusion: There have been numerous researches done and number of guidelines laid down for the management of avulsed tooth. This review article has compiled all the treatment modalities and will help to identify the best treatment modality to be chosen for the treatment of avulsed tooth. Clinical Significance: By considering the evidence-based treatment modalities, the prognosis of treatment of avulsion can be enhanced. Incidence of inflammation, ankylosis, resorption, and tooth loss could be reduced

જીનિંગ અને પ્રેસીંગ ઉધોગનું એક અર્થશાસ્ત્રીય અધ્યયન

Not Availabl

Anodic dissolution of silver in aqueous solutions

Silver and platinum, although not used extensively in industry, find considerable use in specialized work. Silver, because of its much lower cost, is used to a greater extent than platinum. Since silver has a high position in the electromotive series, it is very resistant to chemical attack. It is unaffected by alkaline conditions even at high temperatures and hence silver is used in ladles and molds for producing pure sodium and potassium hydroxides. This and its excellent electrical conductivity makes it a very useful material in circuitry. It has been reported in the literature that when active metals such as magnesium, zinc, and cadmium dissolve anodically in aqueous solutions, a greater amount of metal is found in solution than indicated by Faraday\u27s law. This deviation from Faraday\u27s law has been explained as due to the chunk effect (disintegration), or to valencies less than that of the normal ion. The present investigation was carried out with the intention of determining if a similar deviation occurs for the anodic dissolution of a noble metal such as silver. The existence of such a phenomenon with silver would necessarily be explained by a disintegration of the electrode rather than uncommon valence ion formation --Introduction, page 1

Transient response of a vibration isolation system

A practical procedure for investigating the performance of a vibration isolation system under transient conditions is presented. For this investigation, an induction motor with an unbalanced rotor is studied during the period when it accelerates to its operating speed from rest. Using Newton\u27s second law of motion, equations of motion are derived, first neglecting and then considering the effect of inertia torque . This torque is produced by the inertia force resulting from vertical acceleration of the unbalanced mass. The equations are solved on a digital computer using the Runge-Kutta method of order 4. The results obtained are compared with those obtained using Simpson\u27s and Runge-Kutta methods of order 4 of the Continuous System Modeling Program. For the case when there is no external load, an attempt was made to obtain the responses of the system by the Convolution Integral Solution of the K. A. Foss method. A study of steady state and transient analyses for inertia and no inertia cases is carried out. From the results obtained, graphs are plotted and guidelines useful for design of vibration isolators are given --Abstract, page ii