Furniture manufacturing and wood use in the north central region.

"Sponsored by the agricultural experiment stations of Illinois [and others]""Agricultural experiment stations of Alaska, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin, and the U.S. Department of Agriculture cooperating."Bibliography: p. 66

Modeling the electromagnetic properties of the SCUBA-2 detectors

SCUBA-2 is the next-generation replacement for SCUBA (Sub-millimetre Common User Bolometer Array) on the James Clerk Maxwell Telescope. Operating at 450 and 850 microns, SCUBA-2 fills the focal plane of the telescope with fully-sampled, monolithic bolometer arrays. Each SCUBA-2 pixel uses a quarter-wave slab of silicon with an implanted resistive layer and backshort as an absorber and a superconducting transition edge sensor as a thermometer. In order to verify and optimize the pixel design, we have investigated the electromagnetic behaviour of the detectors, using both a simple transmission-line model and Ansoft HFSS, a finite-element electromagnetic simulator. We used the transmission line model to fit transmission measurements of doped wafers and determined the correct implant dose for the absorbing layer. The more detailed HFSS modelling yielded some unexpected results which led us to modify the pixel design. We also verified that the detectors suffered little loss of sensitivity for off-axis angles up to about 30 degrees.Comment: 13 pages, 14 figures, SPIE Glasgow 21-25 June 2004, Conference 549

Physical Activity and its Impact on Cognitive Development

The educational system largely is associated with academic assessments and sitting at a desk or on a computer for a majority of the school day. Another part of the education system that is often overlooked is caring for the child health and well-being. Education is more than tests and homework and can be facilitated by other methods that don’t encourage a sedentary lifestyle. The purpose of this synthesis project is to determine what impact physical activity can have on cognitive development, cognitive function and overall brain health. Results have shown that even a single bout of exercise can have a positive impact on cognitive function. The research analyzed for this synthesis project has revealed a great deal of evidence that suggests that cognitive development is positively impacted by physical activity

Automatic Crack Detection Algorithm for Vibrothermography Sequence-of-Images Data

Vibrothermography (Sonic IR, thermosonics) is a technique for finding cracks through frictional heat given off in response to vibration. Vibrothermography provides a sequence of infrared images as output of the inspection process. A fast and accurate automatic crack‐detection algorithm for the sequence‐of‐images data will greatly increase the productivity of vibrothermography method. Matched filtering is a technique widely used in signal detection, and it is the optimal linear filter to maximize the signal‐to‐noise ratio in the presence of additive uncorrelated stochastic noise. Based on key features from images of known cracks, we can construct a three‐dimensional matched filter to detect cracks from the vibrothermography data. In this paper, we evaluate the matched filter developed from a vibrothermography inspection sequence‐of‐images. The probability of detection for the matched filter detection algorithm is then compared with the probability of detection for a simpler detection algorithm that is based on a scalar measure of the amount of heat generated in an inspection. Our results show the matched filter algorithm provides improved detection capability when a flaw signature is known approximately

Statistical Methods for Automatic Crack Detection Based on Vibrothermography Sequence-of-Images Data

Vibrothermography is a relatively new nondestructive evaluation technique for finding cracks through frictional heat generated from crack surface vibrations under external excitations. The vibrothermography inspection method provides a sequence of infrared images as output. We use a matched filter technique to increase the signal-to-noise ratio of the sequence-of-images data. An automatic crack detection criterion based on the features extracted from the matched filter output greatly increases the sensitivity of the vibrothermography inspection method. In this paper, we develop a three dimensional matched filter for the sequence-of-images data, present the statistical analysis for the matched filter output, and evaluate the probability of detection. Our results show the crack detection criterion based on the matched filter output provides improved detection capability

The Effects of Ocular Dominance on Visual Processing in College Students

The role of ocular dominance in processing visual memory and analytic tasks is unknown. Research has variably showed both significant effects and no effect of ocular dominance on visual perception, motor control, and sports performance. The goal of this study was to determine if there is a relationship between ocular dominance and visual processing under a variety of computer gaming tasks. This was accomplished by first determining subjects’ ocular dominance through the Miles test, and then examining the subjects’ visual performance on four different Lumosity games under three conditions: left eye, right eye, and both eyes. Results suggest a relationship between ocular dominance and score in the simplest game used, named Raindrops, but did not identify a relationship between ocular dominance and accuracy. The study did not suggest a relationship within any of the other games that measure a variety of different abilities. It is possible a relationship between ocular dominance and score in the game Raindrops may have been due to the simplicity of the task. A small sample size (n = 20) may have also contributed to the inability to detect significant effects. Future studies incorporating larger sample sizes might focus on ocular dominance as it relates to simple arithmetic tasks

An analysis and evaluation of advertising media

This item was digitized by the Internet Archive

Investigating Experiential Wilderness-Based Professional Development for K-12 Educators

Continuing education programs for teachers have the potential to provide beneficial outcomes for both participants and their students. Experiential wilderness-based programs are a unique form of continuing education because of their use of wilderness-based learning environments, outdoor-recreation activities, and experiential teaching initiatives. Research examining the influence of experiential wilderness programs on a range of outcomes (adjustments in behavioral conduct, pro-environmental behaviors, increased classroom culture) is well documented. However, there is little research focused on the use of these type of programs for professional development for educators. Therefore, this research investigated the North Carolina Outward Bound Educators\u27 Initiative (NCOBEI) program as an experiential wilderness-based professional development opportunity for K-12 educators. First, we explore the range of personal and professional development outcomes educators\u27 associate with participation as well as the influence of specific program elements on each outcome. Second, we investigate if the program assists educators\u27 integration of experiential teaching techniques in their schools and classrooms; and further, if educators\u27 beliefs and confidence regarding using these methods can serve as predictors of their later use. Lastly, we evaluate the NCOBEI program for its\u27 influence on participants\u27 positive character traits, forms of professional development, and post training use of experiential learning methods. Our findings demonstrate the powerful influence of experiential wilderness-based professional development opportunities for educators and should be used to support further opportunities for educators and other stakeholders to participate