Design and Development of a High-Temperature High-Pressure Spectrophotometer System: Status Report (open access)

Design and Development of a High-Temperature High-Pressure Spectrophotometer System: Status Report

On 3/14/60 the Applied Physics Corporation was awarded a subcontract for the design and development of a high-temperature high-pressure spectrophotometer system based on the Cary Model 14pm Spectrophotometer insofar as possible, and consistent with our specifications, No. CTD-2, December 16, 1959.
Date: November 12, 1960
Creator: Biggers, R. E. & Wymer, R. G.
System: The UNT Digital Library
Use of Convergent and Asymptotic Series for Computation of the Modified Bessel Function of the First Kind. (open access)

Use of Convergent and Asymptotic Series for Computation of the Modified Bessel Function of the First Kind.

In the Communications of the ACM of April, 1960, p. 240, there appeared two Algol algorithms for the computation of In, the modified Bessel function of the first kind. One of these algorithms uses a convergent series and the other an asymptotic series. Their author, Dorothea S. Clarke, did not give any information with regard to which algorithm is more appropriate in a given situation (a given situation meaning the computation of In (x) for a definite pair of numbers n and x). Such information is necessary, however, if the algorithms are to be useful, particularly since the asymptotic series is in many cases not valid.
Date: December 12, 1960
Creator: Bumgarner, L. L.
System: The UNT Digital Library
Two-Phase Pressure Losses Third Quarterly Progress Report August 12-November 12, 1962 (open access)

Two-Phase Pressure Losses Third Quarterly Progress Report August 12-November 12, 1962

This is the third quarterly report on the work done under Contract AT(04-30-189, Project Agreement No.27, and covers the period August 12 to November 12, 1962.
Date: December 12, 1962
Creator: Janssen, E. (Engineer) & Kervinen, J. A.
System: The UNT Digital Library