Induced radionuclides in astronauts Second quarterly activity report, 1 Oct. 1967 - 1 Jan. 1968

Tissue irradiated with protons and thermal/fast neutrons to study induced radioactive isotope production in astronaut

Teleprinter uses thermal printing technique

Alphameric/facsimile printer receives serial digital data in the form of a specified number of bits per group and prints it on thermally sensitive paper. A solid state shift-register memorizes the incoming serial digital data

The effect of delta 3 on a yawing HAWT blade and on yaw dynamics

A single degree of freedom aeroelastic computer model, WMSTAB3, was employed to perform a parametric analysis of HAWT blade behavior during yaw maneuvers. Over 1,000 different combinations of delta sub 3 and normal frequency were analyzed. The effect of delta sub 3 and flapping stiffness on flapping frequency, phase, and magnitude are discussed. The moments transmitted to the fixed system during yaw maneuvers were calculated and reduced to time constants of response to step changes in wind direction. The significance of the time constants for the configurations considered relative to yaw response rate and lag angle is discussed, along with their possible significance for large HAWT

Induced radionuclides in astronauts Final report, 15 Jun. 1967 - 1 Sep. 1968

Experimental determination of cosmic radiation effects on tissue equivalent materials and human

Cosmic ray induced radioactivity in astronauts as a measure of radiation dose /a/

Cosmic ray induced radioactivity in astronauts as measure of radiation dosag

Impingement of Cloud Droplets on a Cylinder and Procedure for Measuring Liquid-Water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method

No abstract availabl

Morphological and cultural studies of a motile stage in the life cycle of Dermocystidium marinum.

Dermocystidium marinum hypnospores, obtained by exposure to thioglycollate (the Ray technique), were isolated from oyster tissue and placed in sea water under aerobic conditions. The cells differentiated into sporangia, and sporulation occurred by successive bipartition of the protoplast, resulting in the formation of motile cells within the hypnospore wall. The planonts escaped through one or two preformed discharge pores and tubes. All motile cells were biflagellated with both flagella attached laterally and subapically. The anterior flagellum had Flimmern and the posterior flagellum was a whiplash. The planont cell body was intermediate between reniform and pyriform. Sporulation morphology is discussed from light microscope studies. Infection of oyster organ and tissue explants was accomplished with motile cells from single sporangia and from populations of sporangia. Living oysters were infected with the hypnospore isolates, but it was not determined which cell type gave rise to the infections — hypnospores, prehypnospores, or planonts