This work describes the thermomechanical characterization and FEA modeling of commercial jet engine chevrons incorporating active Shape Memory Alloy (SMA) beam components. The reduction of community noise at airports generated during aircraft take-off has become a major research goal. Serrated aerodynamic devices along the trailing edge of a jet engine primary and secondary exhaust nozzle, know...

Fracture toughness tests were conducted for an A533B-1 steel by using chevron-notched compact specimens in the temperature range from the lower shelf regime up to the transition temperature in order to assess the R-curve for cleavage fracture. The applicability of these specimens to the simple fracture toughness test without introducing fatigue pre-cracks was examind. The following are the summ...

The use of two wire loops for fixation of the trochanteric fragment after Chevron osteotomy in revision THA achieves stable fixation with minimal hardware.

The Clar aromatic sextet theory predicts that the intensity of cyclic conjugation in chevron-type benzenoid hydrocarbons monotonically decreases along the central chain. This regularity has been tested by means of several independent theoretical methods (by the energy effects of the respective sixmembered rings, as well as by their HOMA, NICS, and SCI values, calculated at the B3LYP/6-311G(d,p)...

The chevron butterflyfish Chaetodon trifascialis is an obligate corallivore found on Indo-Pacific coral reefs. The typical northern extent of the distributional range of the chevron butterflyfish overlaps with the occurrence of one of its preferred corals Acropora cytherea on reefs of French Frigate Shoals in the Northwestern Hawaiian Islands. Here I document the occurrence of a single C. trifa...

We performed distal chevron osteotomy of the second, third, or fourth metatarsal for painful plantar callosities in 19 non-rheumatoid patients (16 women, 3 men; 21 feet); their mean age was 59 years (32 to 85). The mean follow-up was four years (2 to 7). The overall results were good in 16 feet, fair in two, and poor in three, with four patients still having painful plantar callosities. There w...

In light of Elena Kagan's nomination to serve as an Associate Justice of the United States Supreme Court, this report analyzes then-Professor Kagan's views of executive power and the doctrine of separation of powers as laid most extensively out in her 2001 Harvard Law Review article Presidential Administration. This report will proceed as follows. First, it will briefly describe the constitutio...

Chevron, U.S.A., Inc. v. National Resources Defense Council, Inc., the foundation for much of contemporary administrative law, is under siege. Several members Supreme Court have suggested that they would like to overrule it. Under standard principles stare decisis, doing be a serious mistake. Even if Chevron was wrongly decided, overruling it create an upheaval—a large shock legal system, produ...