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Projects in 1979–1980


Aerospace Corporation: Multivariable Interpolation for Aerodynamic Problems

Advisor
Tei Ito

The purpose of this project was to study various interpolation techniques applied to functions of several variables which were evaluated at irregularly spaced points. Aerodynamic coefficients were determined from the test data of wind tunnel experiments and from locating the vehicle's center of mass as a function of its weight and angle of attack. Work involved various aspects of numerical analysis and the study of computer algorithms.

Department of Energy/Atomics International: Evaluation of Nuclear Safety Code Efficiency Schemes

Advisor
Dennis Jespersen
College
CGU

This project initiated a cooperative research program with Rockwell Energy Systems Group and emphasized the evaluation of efficient numerical procedures for solving stiff systems of differential equations which arise in the study of fast nuclear reactors. Such stiff systems arise from the subtle interplay of neutronics, hydraulics, heat transfer, and various other processes with widely varying associated characteristic time constants.

General Dynamics: Parameter Optimization for a Homing-Guidance System

Advisor
Tei Ito
College
CGU

This project advances General Dynamics' capability to design and analyze effective guidance systems. The team continues the study begun last year aimed at developing an efficient parameter search routine to optimize the parameters of a classical homing-guidance system.

General Dynamics: Compiler Development

Advisor
Wing Tam

The need was for a compiler written in FORTRAN which could convert programs in a high level language into object code for various microprocessor-based systems. The first stage of the project consisted of a needs analysis leading to specifications for the software to be developed.

Harvey Mudd College, Dean Tanenbaum: Cause Computer Net

Advisor
Frederick Phelps

The aim of this project was to facilitate the installation and smooth operation of a 32-port VAX PDP 11-780 computer for CMC, HMC, Pitzer, and Scripps, to support instructional computing at HMC and the other colleges. The team assisted in the selection and installation of all terminals for the CAUSE net, and documented the advantages and disadvantages of hardware options. It also developed a system for managing and monitoring computer use, and prepared materials and conducted workshops to facilitate the use of the VAX.

Harvey Mudd College, Office of Business Affairs: Cash Flow Management in a Small, Private College Environment

Advisor
Jim Meginniss

The College business office is required to manage operations which have continuing and regular expense profiles using cash generated on a variable and irregular basis. This project developed an algorithm to optimize the management of the cash accounts of the college.

Interstate Electronics: Automatic Word Recognition

Advisor
Richard Vitale
College
CGU

Interstate Electronics has developed a voice-input system that can be used as the front end of a variety of computer and technological applications. This year's project team continues work begun last year aimed at raising the rate of correct recognition for the Interstate Electronics system. Particular interest centers on the determination of an optimal set of features extracted from the raw wave forms characteristic of human speech and the perfecting of a recognition algorithm.

Advisor
James Lucke
College
CMC/IDS

This project, a continuation of previous work, was administered by the Institute for Decision Science at CMC, and was a statistically based project aimed at establishing lower confidence bounds for systems of interest to the Navy.

Rand Corporation: The Bomber Prelaunch Survival Problem

Advisor
Everett Bull

The purpose of the project was to look at the mathematical aspects and physical constraints of a “game” involving a surprise attack on our 25 bomber bases by 2 or 3 Soviet submarines, and our retaliation in hopes of describing a generalized model for optimal strategies for both sides.

U.S. Forest Service Fire Lab: Strategies for Chaparral Management

Advisor
Dennis Jespersen

This project completed work initiated two years ago aimed at providing an effective tool for the prevention and control of fires in the chaparral lands of California. The most promising of the algorithms for minimizing losses due to fires previously developed was modified and tested with the help of personnel from the Fire Laboratory. A study was conducted of conditions under which convergence of the mathematical algorithms could be assured, as well.

U.S. Forest Service Fire Lab: Probability Distributions for Fire Occurrence

Advisor
Jerren Gould
College
CGU

The U.S. Forest Service embarked on an ambitious program to construct a “Fire Management Financial Evaluation Model” for the purpose of developing optimal strategies for containment and control of wildfires. Continuing the work of last year's Clinic team, efforts this year concentrated on verifying and extending statistical models for fire occurrence. The team experimented with various stratifications of the parameter space and investigated the applicability of non-parametric estimation methods.