WorldCat Identities

Barker, Lee

Works: 7 works in 7 publications in 1 language and 7 library holdings
Roles: Author
Publication Timeline
Most widely held works about Lee Barker
Most widely held works by Lee Barker
Papers of John Dos Passos by John Dos Passos( )

in English and held by 2 WorldCat member libraries worldwide

The collection also contains a Columbia University Law School Class Book, 1896, with a biographical note and photograph of his half brother James Madison; royalty statements; clippings; obituaries; a memoranda notebook; miscellaneous printed material and two articles by Dos Passos "The Truth About Visual Training," "Two Eighteenth-Century Careers"and "Thomas Jefferson Looks At the Modern World."
Validation of IAU2000A/IAU2006 frame transformation implementations by Lee Barker( Book )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

"Celestial to terrestrial frame transformation is a topic thoroughly covered in basic astrodynamics and used extensively in spacecraft navigation and reference problems. The transformation is typically modeled with equations for precession, nutation, Earth rotation, and polar motion (which is often ignored). For many analysis and trades, simplifications are often sufficient. For systems requiring precision reference or performance analysis, accuracy of the transforms, and often consistency, is held to a higher standard. The International Astronomical Union (IAU) resolutions and associated International Earth Rotation Service (IERS) conventions provide both an adopted set of standards and code, and the basis for precise very long baseline interferometry (VLBI) measurements used by models in the convention standard transformations. The IAU2000A and IAU2006 resolution standards for transformations that relate the International Celestial Reference Frame to the International Terrestrial Reference Frame (ITRF) update standards based on the IAU1976/IAU1980 precession nutation. Fully and properly implemented, these new standards provide the means to obtain the Geocentric Celestial Reference System (GCRS) to a specified consistency. Improvements in both measurement observation techniques and theory, as well as the dependency of precise measurement observations on the newly adopted theory, motivate users to migrate to the newer standards. For systems migrating from earlier theory to IAU2000A or IAU2006, challenges include 1) sorting through the numerous methodologies presented in literature and achieving proper implementation, and 2) validation of the selected implementation. The current literature has not always been consistent and can cause confusion. This paper will briefly summarize the progression of the contemporary frame transformations standards, discuss and reference the current state of literature that defines the standards, illustrate the variety of methods available to choose from, discuss potential implementation traps found in the literature, and discuss implementation validation options available to developers."
by John Collier( )

in English and held by 1 WorldCat member library worldwide

The papers of John Collier represent his transition from a poet to writer of novels, short stories, and screenplays. The bulk of the papers are manuscripts including novels, poems, reviews, screenplays, and short stories. Some correspondence is also included in the papers
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.79 (from 0.59 for Alice Walw ... to 1.00 for Lee Barker ...)