Radar And Visual Observations Of Autumnal (Southward) Shorebird Migration On Guam

Several species of shorebirds migrate between eastern Asia and the southern Pacific islands, Australia, and New Zealand. Observations made from Guam (13°25′N, 144°45′E) during autumn 1983 indicate that a significant number of birds take a direct route over the western Pacific Ocean. Radar observations and ground counts of migrants on Guam showed two periods of autumnal migratory activity. The first, largely adult birds, was in August and September. The second, largely juveniles, was in late September and October. Radar indicated that large numbers of birds passed over the island to the south with no evidence of compensation for drift by the easterly winds. Comparison of radar and ground observations on Guam showed that only a small subset of migrants stop on the island, suggesting that some species may make nonstop flights between eastern Asia and the South Pacific

NASTRAN buckling study of a linear induction motor reaction rail

NASTRAN was used to study problems associated with the installation of a linear induction motor reaction rail test track. Specific problems studied include determination of the critical axial compressive buckling stress and establishment of the lateral stiffness of the reaction rail under combined loads. NASTRAN results were compared with experimentally obtained values and satisfactory agreement was obtained. The reaction rail was found to buckle at an axial compressive stress of 11,400 pounds per square inch. The results of this investigation were used to select procedures for installation of the reaction rail

Holographic stress analysis

Device for nondestructive testing of soldered joints correlates stress with load to predict printed circuit board lifetime

Impact of specific CSR activities, executive & board diversity on equity valuations

Thesis (M.S.) University of Alaska Fairbanks, 2018The objective of this study is to identify the impact of specific corporate social responsibility behaviors on equity prices. This study uses fixed effect parametric and nonparametric regressions to quantify the effect of specific corporate social responsibility activities on the equity price multiples of a number of US firms from 1999 to 2009. The results of these empirical models consistently show that CEO diversity, corporate charitable giving, and work-life balance benefit plans, are associated with lower equity price multiples compared against similar firms that lack these characteristics. Additionally, board diversity and support of the LBGTQ community is associated with a positive impact on equity price multiples. This study provides evidence that individual corporate social responsibility activities can have drastic impacts on equity prices, leading the way for future research testing whether the magnitudes of these impacts are rational and in-line with their expected impact on financial performance and risk, or a deviation from the efficient market hypothesis

Orbital tube flaring system produces tubing connectors with zero leakage

An orbital tube flaring system produces tubing connectors with a zero-leak potential needed in high pressure hydraulic and pneumatic systems. The flaring system incorporates a rolling cone and rolling die to closely control flare characteristics

Harkness learning: principles of a radical American pedagogy

This paper investigates and argues for Harkness learning: an approach to education that inculcates a culture of enquiry, driven by students in dialogue around a table. Tracing the history of the Harkness reforms in education at Phillips Exeter Academy, their pedagogical and philosophical roots are considered. Although partly inspired by the Oxford tutorial system and the Socratic concept of dialogue, Harkness departs from there to a radical classroom dynamic. The teacher is required to be more open-minded and less controlling over outcomes, to take the risk of listening more and saying less. This shift in emphasis fits with a distinctly American philosophical respect for the sanctity of the free thought and originality of the individual, which here is traced to Transcendentalist ideals that have permeated American culture. It can also be compared with Problem-Based Learning and there are certain significant overlaps between these pedagogies. However, Harkness is sometimes narrowly misunderstood as a technique for teaching, which takes the approach out of context. It needs to be understood in the broad frame of cultural reform of an institution – it is a useful symbol for a community committed to student discourse and problem solving. In this respect, Harkness owes a further debt to pragmatism – another great American philosophical-educational tradition