Investigation of Perognathus as an experimental organism for research in space biology Progress report, 1 Apr. - 30 Jun. 1966

Anatomical brain structure of Perognathus longimembri

Investigation of Perognathus as an experimental organism for research in space biology Progress report, 1 Jul. - 30 Sep. 1966

Body temperature regulatory mechanism and extreme environment response of pocket mous

Investigation of Perognathus as an experimental organism for research in space biology Progress report, 1 Jan. - 31 Mar. 1966

Hibernation characteristics of pocket mice and temperature effect on torpidit

Investigation of Perognathus as an Experimental Organism for Research in Space Biology Summary Progress Report, 3 Jan. - 30 Sep. 1967

Hypoxia induced hypothermia and hemoglobin oxygen affinity in Perognatu

High-temperature electric stator

Thermal vacuum tests are conducted on high-temperature stator without a rotor. Electrical characteristics remained satisfactory during tests, insulation improved slightly, and conductor resistance remained constant. The assembly included a bore seal for hermetically sealing the stator from the rotor cavity

Experimental and theoretical investigations of a supercavitating hydrofoil

An experimental investigation of the two-dimensional hydrodynamic characteristics of a thin, supercavitating hydrofoil is described. The effects of twist and vibration of the thin hydrofoil model are considered, and experimental techniques for investigating spanwise twist and leading edge vibration and data correction methods are described. The theory of Wu for the forces on fully cavitating hydrofoils was used to calculate the forces on this profile. The calculated lift is in good agreement with the experimental results; however, the measured drag differs appreciably from the theoretical values

Research on the properties of circadian systems amenable to study in space

Three areas of inquiry are reported for the Skylab Experiment S-071 whose objective was to study the circadian system of a mammal during space flight. The thermoregulatory behavior of the Perognathus longimembris, or little pocket mouse, was studied under conditions of constant dark and constant temperature in the prolonged weightless environment of Skylab. The following specific questions were studied: (1) the effects of weightlessness on circadian periodicity in the little pocket mouse; (2) stability of the free-running circadian period of body temperature of the little pocket mouse exposed to simulated launch stress; and (3) characteristics of the circadian rhythm of body temperature in the little pocket mouse. Diagrams of the electronic circuitry and hardware used in the experiment are shown and results are given in both graphical and tabular form. The methods used in the experiment are fully documented, along with conclusions and recommendations for future research

Braze alloys for high temperature service

Two groups of refractory metal compositions have been developed that are very useful as high temperature brazing alloys for sealing between ceramic and metal parts. Each group consists of various compositions of three selected refractory metals which, when combined, have characteristics required of good braze alloys

Investigation of perognathus as an experi- mental organism for research in space biology progress report, 1 apr. - 30 jun. 1965

Reproduction of mice in confinemen