Naturally buckling steel braces (NBBs) have been recently developed by the authors and co-workers to improve performance energy dissipation capacity of braced framed structures. In NBBs, a low-yield-point (LYS) channel high-strength (HSS) are connected using battens build up dual-material section. An intentional eccentricity is introduced along brace length subject bending loads in addition axi...

One of the most notorious problems with ferroelectric liquid crystal is obtaining zigzag free bistable devices. By investigating the balance between surface azimuthal anchoring energy and bulk elastic energy within the confined chevron layer geometry of C1 and C2, we propose that it is possible to get a zigzag free C1 state by low azimuthal anchoring alignment at a low pretilt angle. The critic...

We compared the chevron and the Wilson metatarsal osteotomy for hallux valgus in a prospective randomised trial on 87 feet in 51 patients, reviewed at averages of 5.5 and 38 months after operation. The patients in the chevron group returned to work earlier and mobilised faster, but, at the later review, those in the Wilson group had better functional results and were more satisfied with the app...

The seismic performance of hybrid braces composed of steel and shape memory alloy (SMA) was investigated in this paper. Six types of hybrid braces were used, constituted by SMA content of 0, 20, 40, 60, 80, and 100%. A nonlinear dynamic analysis was performed under El Centro earthquake records, with the maximum acceleration of 0.6g and 0.9g. Our results showed that the seismic performance, i.e....

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...