Space-time super-resolution

We propose a method for constructing a video sequence of high space-time resolution by combining information from multiple low-resolution video sequences of the same dynamic scene. Super-resolution is performed simultaneously in time and in space. By "temporal super-resolution," we mean recovering rapid dynamic events that occur faster than regular frame-rate. Such dynamic events are not visible (or else are observed incorrectly) in any of the input sequences, even if these are played in "slow-motion." The spatial and temporal dimensions are very different in nature, yet are interrelated. This leads to interesting visual trade-offs in time and space and to new video applications. These include: 1) treatment of spatial artifacts (e.g., motion-blur) by increasing the temporal resolution and 2) combination of input sequences of different space-time resolutions (e.g., NTSC, PAL, and even high quality still images) to generate a high quality video sequence. We further analyze and compare characteristics of temporal super-resolution to those of spatial super-resolution. These include: the video cameras needed to obtain increased resolution; the upper bound on resolution improvement via super-resolution; and, the temporal analogue to the spatial "ringing" effect.     

Non-Recursive adaptive impulse noise canceller

A non-recursive adaptive impulse noise canceller (AINC) is investigated. The AINC is designed to suppress long impulsive interferences which are a primary source of errors in many communication systems. Performance of the AINC depends upon the input filter of the receiver. It is shown that the optimum input filter is LPF; the optimum LPF bandwidth exists which provides the minimum error rate of the receiver. The system error rate is studied by means of a computer simulation. Simulation results indicate that the AINC provides a very effective suppression of impulse noise. However, conditions in a real communication channel may be quite different from those chosen for simulation. Therefore, further research remains to be done before the AINC can be recommended for practical applications.     

"Conceptual area" among pathological groups: A failure to replicate.

The ability of the "conceptual-area" scoring system to differentiate between tuberculous, process schizophrenic, reactive schizophrenic, and brain-damaged patients was tested by administering the Object Sorting Test to 125 hospitalized veterans. The diagnostic groups were equivalent in mean education, intelligence, and length of hospitalization, but the tuberculous and brain-damaged patients averaged 8 yr. older than the schizophrenics. None of the scores differentiated the groups at the .05 level. In discussing these results, it was maintained that, contrary to comment in the literature, "conceptual area" has never conclusively differentiated, in a simultaneous comparison, between nonpsychiatric, brain-damaged, and schizophrenic patients, and may not be appropriate for this purpose. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A test of the Taylor-Spence theory of anxiety.

"The present studies tested the Taylor-Spence theory under 2 conditions: (a) Competing and noncompeting materials were equated in difficulty for a nonanxious group. The prediction from the Taylor-Spence theory that the anxious Ss would perform more poorly on the competing than on the noncompeting material was not sustained. (b) Anxious and nonanxious Ss were tested on easy competing and difficult noncompeting materials. The prediction from the Taylor-Spence theory was that anxious Ss would do more poorly (relative to nonanxious Ss) on the easy competing than on the difficult noncompeting material. The results were opposite from those predicted and significant at beyond the .05 level." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Psychology and manpower policy.

Outlines 5 contributions made by psychology to manpower policy: (1) the public has been encouraged to adopt a more humane attitude toward people who are ineffective; (2) the public has acquired a positive stance toward the amelioration of social and human ills, particularly through reliance on education, but also through other approaches including supportive services; (3) psychology's study of the distribution of human attributes has contributed substantially to the decline in discrimination toward women, Negroes, and others who were formerly beyond the pale; (4) psychology has led to more constructive views and behavior with regard to the rearing of children and development of young people; and (5) psychology has thrown a searchlight on the critical importance of work for individual and social integration. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The finite difference technique for solving crack problems

A detailed examination of the Finite Difference method for solving crack problems is presented and discussed. The three classical mode I configurations (i.e. Centered Crack Plate, Double Edge Notch and Single Edge Notch) as well as an uncommon case (A Penny Shape Crack embedded in a circular plate in bending) are solved and discussed. The Stress Intensity Factors are computed by taking more than one (first) term in William's Series, using two or three points near the tip. This technique improves the accuracy and frees one from relying on the very first point near the tip as a measure base. In most cases, the accuracy was found to be between 1–3% for uniform mesh size in the order of 5% from the half crack length. No special imposed functions were used near the tip, which makes the technique competitive to the Finite Element method, especially for 3-D problems or cases where the degree of singularity is not known. The solution is found iteratively (a two step SOR method) and some techniques for quick convergence are discussed.     

Characterization of a Si-SiO2 Mixture Generated from SiO(g) and CO(g)

Metallurgical and Materials Transactions B - The reaction between SiO(g) and CO(g) is a relevant intermediate reaction in the silicon production process. One of the products generated from this gas...