Error bounds for parallel communication channels

Error bounds for parallel communication channel

Methods and algorithms for integrated multi-scale optimisation of production planning and scheduling

Imperial Users onl

Analysis of some algorithms for use on paged virtual memory computers

PhD ThesisHandling a single page fault involves execution of thousands of instructions, drum rotational delay and is usually so expensive that if it can be avoided, almost any other cost can be tolerated. Optimizing operating system performance is usually the main concern of computer seientists who deal with paged memories. However, redesigning the algorithm used by a problem program can often result in a very significant reduction in paging, and hence in program execution time. The redesigned algorithm frequently does not satisfy the more conventional efficiency criteria. A sorting algorithm, Hash Coding and other search algorithms are considered. Analytic and simulation studies are presented, and aome modifications are proposed to reduce the number of page faults produced by data set references. Analysis is in terms of three of the most commonly used page replacement algorithms i.e. least recently used, first in first out, and random selection. The modifications are for the most part relatively minor and in some cases have appeared elsewhere in the context of searching on external storage media. The important aspects are the dramatic performance improvements which are possible, and the fact that classical internal algorithms are inappropriate for use in a paged virtual memory system.The Science Research Council: The University of Newcastle Upon Tyne: International Business Machines (United Kingdom) Limited.

Mission Analysis Program for Solar Electric Propulsion (MAPSEP). Volume 3: Program manual

The internal structure of MAPSEP is described. Topics discussed include: macrologic, variable definition, subroutines, and logical flow. Information is given to facilitate modifications to the models and algorithms of MAPSEP

Communication over fading dispersive channels.

Based on a Ph.D. thesis submitted to the Dept. of Electrical Engineering, 1967.Bibliography: p.141-142

Space Programs Summary No. 37-36

Research in systems, guidance and control, space sciences, engineering, telecommunications and propulsion for space exploration program

Study of an attitude reference system utilizing an electrically suspended gyro final report, 1 aug. 1964 - 31 mar. 1965

Miniature electrically suspended gyroscope for spacecraft attitude reference syste