7,462 research outputs found
Low frequency shelf current fluctuations in the Gulf of Alaska
Thesis (M.S.) University of Alaska Fairbanks, 1977A general oceanographic study of a shelf region in the Gulf of Alaska has revealed low-frequency, current fluctuations. A current meter mooring was located approximately 20 km offshore, in a water depth of 100 m. The time dependent flow is found to be baroclinic and semi-periodic. The effects of local bottom topography, nearshore dilution by river discharge, orographic coastal features, and an island barrier are important to the shelf circulation in this region. The movement of a boundary associated with the Copper River appears to be an important process in controlling the water motion at the mooring site
Wikis in Tuple Spaces
We consider storing the pages of a wiki in a tuple space and the effects this
might have on the wiki experience. In particular, wiki pages are stored in
tuples with a few identifying values such as title, author, revision date,
content, etc. and pages are retrieved by sending the tuple space templates,
such as one that gives the title but nothing else, leaving the tuple space to
resolve to a single tuple. We use a tuple space wiki to avoid deadlocks,
infinite loops, and wasted efforts when page edit contention arises and examine
how a tuple space wiki changes the wiki experience.Comment: To appear at WMSCI 200
Applications of quantum message sealing
In 2003, Bechmann-Pasquinucci introduced the concept of quantum seals, a
quantum analogue to wax seals used to close letters and envelopes. Since then,
some improvements on the method have been found. We first review the current
quantum sealing techniques, then introduce and discuss potential applications
of quantum message sealing, and conclude with some discussion of the
limitations of quantum seals.Comment: Presented as SPIE paper 5815-25 at Quantum Information and
Computation III, part of the SPIE Defense & Security Symposium 200
Small deflection of a class of clamped thin plates using collocation
Equations are given for the optimization of a class of two-and three-dimensional structures. The application of existing analytical techniques to the response of thin clamped plates is described. The ratios of deflections to plate thickness are given for uniform transverse loads as well as for uniform plus linearly varying transverse loads. Deflections are presented at angular increments of 5 degrees and at radial increments of 0.1 of the radius
Large space structures testing
There is considerable interest in the development of testing concepts and facilities that accurately simulate the pathologies believed to exist in future spacecraft. Both the Government and Industry have participated in the development of facilites over the past several years. The progress and problems associated with the development of the Large Space Structure Test Facility at the Marshall Flight Center are presented. This facility was in existence for a number of years and its utilization has run the gamut from total in-house involvement, third party contractor testing, to the mutual participation of other Government Agencies in joint endeavors
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