1,998 research outputs found
Infrared astronomy: seeing the heat : from William Herschel to the Herschel space observatory
No full textUncover the Secrets of the Universe Hidden at Wavelengths beyond Our Optical GazeWilliam Herschel's discovery of infrared light in 1800 led to the development of astronomy at wavelengths other than the optical. Infrared Astronomy - Seeing the Heat: from William Herschel to the Herschel Space Observatory explores the work in astronomy that relies on observations in the infrared. Author David L. Clements, a distinguished academic and science fiction writer, delves into how the universe works, from the planets in our own Solar System to the universe as a whole. The book first presents the major
Our government: how founded by David L. Pierson
No full textThis is an item in the Clements family papers collection. (Published By National Society, Sons of the American Revolution
Pooling of Forecasts
No full textWe consider forecasting using a combination, when no model coincides with a non-constant data generation process (DGP). Practical experience suggests that combining forecasts adds value, and can even dominate the best individual device. We show why this can occur when forecasting models are differentially mis-specified, and is likely to occur when the DGP is subject to deterministic shifts. Moreover, averaging may then dominate over estimated weights in the combination. Finally, it cannot be proved that only non-encompassed devices should be retained in the combination. Empirical and Monte Carlo illustrations confirm the analysis.
George Washington (1732-1932): a brief review of his life in the form of question and answer by David L. Pierson
No full textThis is an item in the Clements family papers collection. (Published By National Society, Sons of the American Revolution
An antiplane crack between bonded dissimilar functionally graded isotropic elastic materials
No full textThis is a pre-copyedited, author-produced PDF of an article accepted for publication in The Quarterly Journal of Mechanics and Applied Mathematics following peer review. The definitive publisher-authenticated version Clements, David Laurence, An antiplane crack between bonded dissimilar functionally graded isotropic elastic materials, The Quarterly Journal of Mechanics and Applied Mathematics, 2013; 66(3):333-349 is available online at: http://qjmam.oxfordjournals.org/content/66/3/333.The problem of a plane crack along the interface of two dissimilar functionally graded isotropic half-spaces under antiplane strain is considered. The materials exhibit quadratic variation in the shear modulus. Numerical values for the stress intensity factors and crack displacement are obtained for some particular materials.D. L. Clement
Infiltration from irrigation channels into soil with impermeable inclusions
No full textWe consider the effect of impermeable inclusions on the infiltration of water from irrigation channels in a homogeneous soil. An expression for the matric flux potential throughout the soil is obtained in terms of a boundary integral equation. A Green's function derived by Basha [Water Resources Research, 30:2105--2118, 1994] is suitable for numerical calculations for this class of problems. This Green's function is employed in the boundary integral equation to obtain numerical values for the matric flux potential for a soil with embedded impermeable inclusions of various shapes. The numerical results indicate how impermeable inclusions may be used to effectively direct the flow from irrigation channels to particular regions below the soil surface.Maria Lobo, David L. Clements and Nyoman Widan
Bull trout conservation and recovery in the Odell Lake core area: distribution, behavior, ecology, and fisheries evaluations (2013-2014)
No full textMichael H. Meeuwig, Steve J. Starcevich, Elizabeth J. Bailey, Shaun P. Clements, and Joshua L. McCormick.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 63-68).Funding for this project was provided in part by USFWS (F14AF01131 and F13AF01080).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Michigan / drawn & published by David H. Burr.
No full textBelow neat line: Entered according to act of Congress in the year 1831 by David H. Burr, in the clerk's office of the district court for the Southern District of New-York.; Above neat line at right: 40.; Copy 2 (ACQ: M-334) colored differently
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