Accession Number : AD0263770

Title :   ESTIMATES OF VARIANCE IN LEAST SQUARES TRAJECTORY PARAMETERS OBTAINED USING TENSOR ANALYSIS

Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CALIF

Personal Author(s) : REED,FRANK C.

Report Date : 01 DEC 1960

Pagination or Media Count : 1

Abstract : A statistical investigation is made of various trajectory parameters by use of tensor analysis. The method of solution by least squares is used. There are 4 parts as follows: (1) the analysis of basic data curves, (2) data adjustment, (3) application of the Gaussian approximation formula and, (4) a discussion of assumptions from the basic data. AD-263 771Div. 30, 25U (TIPSM/EET) OTS price $1.10 Naval Ordnance Test Station, China Lake, Calif. MEASUREMENT OF THERMAL PROPERTIES AT HIGH TEMPERATURES, by Warren K. Smith. Aug 61, 10p. incl. illus. tables (NOTS TP 2624) Unclassified report DESCRIPTORS: (*Radiant heating panels, High temperature research, Laboratory equipment, *Thermal conductivity, *Thermal diffusion, *Specific heat, Measurement, Sandwich construc tion, Aerodynamic heating, Simulation.) (Ma terials, Deterioration, Ablation, Test equipment.) Radiant-heating equipm nt was adapted for the measurement of the properties of materials at high temperatures. With a single sandwich, thermal diffu ivity can be measured as a function of temperature. With a double sandwich in which the outer layers are a material of known thermal properties, it is possible to measure thermal diffusivity, volume specific heat, and thermal conductivity of the inner layers versus temperature. The method is capable of at least engineering accuracy and is much more rapid than conventional methods. Examples of the data that can be obtained are presented. The method is expected to be especially useful for sandwiches and composities as well as for the measurement of properties of materials in process of deterioration, such as for ablating nose cones. (Author)

Descriptors :   *GUIDED MISSILE TRAJECTORIES, *LEAST SQUARES METHOD, *MATRICES(MATHEMATICS), *STATISTICAL DATA, *TENSOR ANALYSIS, EQUATIONS, FUNCTIONS(MATHEMATICS), POLYNOMIALS, STATISTICAL ANALYSIS, TAYLOR'S SERIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE