6,902 research outputs found
Barry, William Taylor, 1785-1835 (SC 229)
No full textFinding aid only for Manuscripts Small Collection 229. Photocopies of two letters by Barry while serving as Postmaster General under President Andrew Jackson. Letter 27 November 1832 to James K. Polk relates to mail service in Tennessee. Letter 7 February 1833 to Martin Van Buren concerns national politics. The bulk of the collection is research material, including other correspondence, that was typed or hand copied by J.F. Kany for the master’s thesis he wrote on Barry in 1934
Barry, G. E. & Company (SC 421)
No full textFinding aid and scan (Click on additional files below) for Manuscripts Small Collection 421. Circular letter, broadside, and envelope, from G.E. Barry & Company, Wilmington, Delaware, advertising a lottery for the benefit of the state of Delaware, 25 March 1861
Barry, William Taylor, 1784-1835 (SC 2584)
No full textFinding aid only for Manuscripts Small Collection 2584. Typescript copies of correspondence of William Taylor Barry, Lexington, Kentucky, with colleagues, family, and political leaders. Includes a photocopied article with excerpts from Barry’s correspondence
SC author and illustrator Kate Salley Palmer signing book
No full textPhotograph of SC author and illustrator Kate Salley Palmer signing boo
Book signing by SC author and illustrator Kate Salley Palmer
No full textPhotograph of Book signing by SC author and illustrator Kate Salley Palme
High-resolution clean-sc
No full textIn this paper a high-resolution extension of CLEAN-SC is proposed: HR-CLEAN-SC. Where CLEAN-SC uses peak sources in “dirty maps” to define so-called source components, HR-CLEAN-SC takes advantage of the fact that source components can likewise be derived from points at some distance from the peak, as long as these “source markers” are on the main lobe of the Point Spread Function (PSF). This is very useful when sources are closely spaced together, such that their PSFs interfere. Then, alternative markers can be sought in which the relative influence by PSFs of other source positions is minimised. For those markers the source components better agree with the actual sources, which allows for better estimation of their locations and strengths. This paper outlines the theory needed to understand this approach and discusses applications to 2D and 3D microphone array simulations with closely spaced sources
Fluorocarbon synthesis in a high-intensity carbon arc
No full textThesis: Sc. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 1963Includes bibliographical references (leaves 95-103).by Barry Robert Bronfin.Sc. D.Sc. D. Massachusetts Institute of Technology, Department of Chemical Engineerin
SC author and illustrator Kate Salley Palmer talking to event attendees
No full textPhotograph of SC author and illustrator Kate Salley Palmer talking to Rita Lewi
Ca-modified Al–Mg–Sc alloy with high strength at elevated temperatures due to a hierarchical microstructure
No full textAl-Mg alloys are normally prone to lose part of their yield and tensile strength at high temperatures due to insufficient thermal stability of the microstructure. Here, we present a Ca-modified Al–Mg–Sc alloy demonstrating high strength at elevated temperatures. The microstructure contains Al4Ca phases distributed as a network along the grain boundary and Al3(Sc,Zr) nano-particles dispersed within the grains. The microstructure evolution and age-hardening analysis indicate that the combination of an Al4Ca network and Sc-rich nano-particles leads to excellent thermal stability even upon aging at 300 °C. The tensile strength of the alloy for temperatures up to 250 °C is significantly improved by an aging treatment and is comparable with the commercial heat-resistant aluminum alloys, i.e., A356 and A319. At a high temperature of 300 °C, the tensile strength is superior to the above-mentioned commercial alloys, even more so when expressed as the specific strength due to the low density of Ca-modified Al–Mg–Sc alloy. The excellent high-temperature strength results from a synergistic effect of solid solution strengthening, grain boundary strengthening and nanoparticle order strengthening.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Novel Aerospace Material
SC-Square: Overview to 2021.
No full textThis extended abstract was written to accompany an invited talk at the 2021 SC-Square Workshop, where the author was asked to give an overview of SC-Square progress to date. The author first reminds the reader of the definition of SC-Square, then briefly outlines some of the history, before picking out some (personal) scientific highlights
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