10,787 research outputs found
Experimental investigation into the feasibility of an extruded wing
Fabrications of extruded aluminum alloy structures are reviewed. The design criteria and the fabrication of the main structure of a sailplane wing made of a few extruded profiles longitudinally connected one to the other are illustrated. Structural tests recently carried out are reported upon
Normal categories of normed algebra of finite rank bounded operators
In this article, we introduce the normal category L(S) [R(S)] of principal
left [right] ideals of the normed algebra S of all finite rank bounded
operators on a Hilbert space H and is shown that they are isomorphic, using
Hilbert space duality. We also described the semigroup of all normal cones in
L(S) which is isomorphic to the semigroup of all finite rank operators on H.
Further, we construct bounded normal cones in L(S) such that the set of all
bounded normal cones in L(S) is a normed algebra isomorphic to the normed
algebra S.Comment: 16 pages 0 figur
Teaching Teachers for the Future (TTF) Project: Development of the TTF TPACK survey instrument
This paper presents a summary of the key findings of the TTF TPACK Survey developed and administered for the Teaching the Teachers for the Future (TTF) Project implemented in 2011. The TTF Project, funded by an Australian Government ICT Innovation Fund grant, involved all 39 Australian Higher Education Institutions which provide initial teacher education. TTF data collections were undertaken at the end of Semester 1 (T1) and at the end of Semester 2 (T2) in 2011. A total of 12881 participants completed the first survey (T1) and 5809 participants completed the second survey (T2). Groups of like-named items from the T1 survey were subject to a battery of complementary data analysis techniques. The psychometric properties of the four scales: Confidence - teacher items; Usefulness - teacher items; Confidence - student items; Usefulness- student items, were confirmed both at T1 and T2. Among the key findings summarised, at the national level, the scale: Confidence to use ICT as a teacher showed measurable growth across the whole scale from T1 to T2, and the scale: Confidence to facilitate student use of ICT also showed measurable growth across the whole scale from T1 to T2. Additional key TTF TPACK Survey findings are summarised
Normal categories of semigroup of order-preserving transformations on a finite chain
K. S. S. Nambooripad intoduced nornal categories to enable to describe the
structure of regular semigroups fully. In this paper we describe the ideal
categories of the regular semigroup of non-invertible order-preserving
transformations on a finite chain which
are normal categories. Further it is shown that the principal left ideal
category of as the power set category of and the
principal right ideal category as category of ordered partitions
of and described the cone semigroup and prove that it
is isomorphic to Comment: 14 pages, 0 figure
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