Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Christoph J. Witzgall"'
Publikováno v:
J Res Natl Bur Stand (1977)
A number of labeling procedures for determining shortest paths in a network employ a sequence list in order to carry out the required steps systematically. This paper studies certain formal properties of such sequence lists. It is shown that the desi
Publikováno v:
Automation in Construction. 18:265-274
The use of 3D imaging systems (e.g., laser scanners) in construction has grown significantly in the past decade. Range images acquired with such systems often require registration. This paper describes an automatic method to rapidly locate spheres an
Autor:
Javier Bernal, Christoph J. Witzgall
Publikováno v:
Journal of Research of the National Institute of Standards and Technology
A scheme is presented and software is documented for representing as integers input decimal numbers that have been stored in a computer as double precision floating point numbers and for carrying out multiplications, additions and subtractions based
Publikováno v:
Journal of Research of the National Institute of Standards and Technology
A numerical procedure is described in which the aerodynamic drag and torque in low Earth orbit are calculated for a prototype Space Shuttle external tank and its components, the “LO2” and “LH2” tanks, carrying liquid oxygen and hydrogen, resp
Autor:
Christoph J. Witzgall, Saul I. Gass
Publikováno v:
Computers & Operations Research. 31:637-643
We show how the Chebychev minimax criterion for finding a circle closest to a set of points can be approximated well by standard linear programming procedures.
Publikováno v:
Mathematical Programming. 90:113-145
The limits of a class of primal and dual solution trajectories associated with the Sequential Unconstrained Minimization Technique (SUMT) are investigated for convex programming problems with non-unique optima. Logarithmic barrier terms are assumed.
Publikováno v:
Automation in Construction. 9:463-477
Work at the National Institute of Standards and Technology (NIST) on laser radar imaging of a construction site is described. The objective of the NIST research is to make measurements required in a construction project quicker and cheaper than curre
Publikováno v:
Linear Algebra and its Applications. 152:315-342
Interior-point algorithms for solving linear programming problems are considered. A three-dimensional method is developed that, at each iteration, solves a subproblem based on minimizing the cost function on low-dimensional cross sections of the feas
Publikováno v:
Journal of Aerospace Engineering. 4:145-163
A numerical procedure is described in which the aerodynamic drag and torque are calculated for convex shells of revolution for any given angle of attack based on free molecular flow theory. Assumptions are that the center of gravity lies on the axis