Technology utilization program report, 1974

The adaptation of various technological innovations from the NASA space program to industrial and domestic applications is summarized

Experimental and Theoretical Determination of Forces and Moments on a Store and on a Store- Pylon Combination Mounted on a 45 Deg Swept- Wing-Fuselage Configuration at a Mach Number of 1.61

Forces and moments of store-pylon combination mounting on swept wing-fuselage configuration in supersonic pressure tunne

Investigations of lubricant rheology as applied to elastohydrodynamic lubrication

The pressure viscometer was modified to permit the measurement of viscosity at elevated pressures and shear stresses up to 5 x 10 to the 6th power N/sq m (720 psi). This shear stress is within a factor of three of the shear stress occurring in a sliding ehd point contact such as occurs in the ehd simulator. Viscosity data were taken on five lubricant samples, and it was found that viscous heating effects on the viscosity were predominant and not non-Newtonian behavior at the high shear stresses. The development of the infrared temperature measuring technique for the ehd simulator was completed, and temperature data for a set of operating conditions and one lubricant are reported. The numerical analysis of the behavior of nonlinear lubricants in the lubrication of rollers is reported

Egg Yolk Pigmentation as Influenced by Alfalfa Meal and Various Concentrates

This study was a continuation of testing natural and synthetic materials in the production of deeply pigmented egg yolk. Thus far ß-apo 8\u27 carotenoic acid ethyl ester (BACE) has been the most efficient pigmenter used, followed by ß-apo 8\u27 carotenal (BAC) and then various alfalfa concentrates, alfalfa or corn gluten meal and marigold meals. There has been a tendency for enhanced yolk color when the synthetic pigmenters were fed with alfalfa, suggesting synergism. This study was therefore conducted to determine if fractions of alfalfa meal with little or no xanthophyll would enhance the utilization of pure pigmenting material

Egg Yolk Pigmentation with Dehydrated Alfalfa Meal, Pro-Xan and Xanthophyll-free Freeze Dried Alfalfa Juice

This study concludes a series of tests in which natural and synthetic materials were used to produce deeply pigmented egg yolk. The most efficient pigmenter used was B-apo 8\u27 carotenoic acid ethyl ester followed by 6-apo 8\u27 carotenal, alfalfa concentrates and meals of alfalfa, corn gluten and marigold petals. In this test pure lutein, dehydrated alfalfa meal and Pro-Xan, an alfalfa concentrate, were used as sources of pigments^. The freeze dried alfalfa juice was tested for its possible effect in enhancing the utilization of pure lutein. Caged hens were depleted of body stored pigments by feeding an essentially pigment free, milo-soy diet for 12 months. Pigmenting materials were then added to the milo-soy basal to provide dietary pigment at levels of 10 and 20 ppm as shown in table 1

Yolk Pigmenters

Commercial quantities of deeply pigmented egg yolk are used by certain food manufacturers to give desirable yellow color to some of their products. Yellow com and alfalfa meal are the major natural sources of the yellow pigments (xanthophylls) found in the egg yolk. The degree of pigmentation depends largely on two factors, the pigment concentration in the diet and the amount of pigment absorbed by the yolk fat during yolk formation

Selenium Supplementation of Layer Diets Based on Milo and Soybean Meal

Previous studies with com-soy diets have shown laying hens to have improved feed efficiency when the diets were supplemented with up to 2 ppm selenium. In some cases, egg production was Improved, but in most instances feed intake was simply reduced without causing a decrease in egg numbers. A study was therefore conducted with a milo-soy diet to further evaluate this treatment

Diffusion Coefficients of Endogenous Cytosolic Proteins from Rabbit Skinned Muscle Fibers

AbstractEfflux time courses of endogenous cytosolic proteins were obtained from rabbit psoas muscle fibers skinned in oil and transferred to physiological salt solution. Proteins were separated by gel electrophoresis and compared to load-matched standards for quantitative analysis. A radial diffusion model incorporating the dissociation and dissipation of supramolecular complexes accounts for an initial lag and subsequent efflux of glycolytic and glycogenolytic enzymes. The model includes terms representing protein crowding, myofilament lattice hindrance, and binding to the cytomatrix. Optimization algorithms returned estimates of the apparent diffusion coefficients, D(r,t), that were very low at the onset of diffusion (∼10−10 cm2 s−1) but increased with time as cytosolic protein density, which was initially high, decreased. D(r,t) at later times ranged from 2.11 × 10−7 cm2 s−1 (parvalbumin) to 0.20 × 10−7 cm2 s−1 (phosphofructose kinase), values that are 3.6- to 12.3-fold lower than those predicted in bulk water. The low initial values are consistent with the presence of complexes in situ; the higher later values are consistent with molecular sieving and transient binding of dissociated proteins. Channeling of metabolic intermediates via enzyme complexes may enhance production of adenosine triphosphate at rates beyond that possible with randomly and/or sparsely distributed enzymes, thereby matching supply with demand

Tensile properties of yttrium-titanium and yttrium-zirconium alloys

Complete series of yttrium-titanium and yttrium-zirconium alloys were tested in tension at room temperature, and ultimate tensile strength, yield strength and reduction in area data are reported for these alloys. Yield point phenomena were encountered in both of these alloy systems

Selenium Content of Feed and of Commercially Grown Turkeys

As a contribution toward the efforts of the American Feed Manufacturers Association\u27s petition to the Food and Drug Administration to permit selenium additions to animal feeds, two flocks of Large Broad White turkeys in South Dakota were monitored. Each flock v/as observed three times during the growing season and at slaughter. Feed samples were taken periodically throughout the growing period and tissue samples were taken after coding and packaging. A portion of the distal end of the pectoralis minor (breast muscle) and the liver were obtained. Selenium analyses were conducted according to the method of Olson (1969)