| The Degradation of Parachutes: Age and Mechanical Wear |
MAY 92 |
56 pages |
| Authors:
Ronald A. Segars; ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
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 | New and previously published data involving the strength of parachute suspension cord are consolidated and critically analyzed for the purpose of extracting the effect of age (storage life) from the combined effect of age use (number of jumps). Test results from both new and used parachutes (some as old as 23 years) show that a 35% decrease is the tensile strength of parachute suspension cord (usually occurring within the first ... |
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| Methods to Evaluate Solid Surface Tension for Military Fabrics |
MAR 90 |
60 pages |
| Authors:
Landa Hoke; Ronald A. Segars; R. B. McDermott; ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
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| The goal of this work is to develop methods to characterize the wettability of military cloth. The purpose of the work with contact angles is to determine the surface tension or surface free energy of military cloth samples. Surface tension studies were conducted to evaluate techniques to examine military fabrics. Calculation of surface tension for a solid surface was performed using various mathematical models in order to compare the answers ... |
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| Direct Ohmic Heating Device. |
11 MAR 1981 |
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| Authors:
Ronald A. Segars; Stephen T. Johnson; Stephen M. Swift; DEPARTMENT OF THE ARMY WASHINGTON DC
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 | An apparatus is disclosed that will accomplish that rapid thawing and heating of frozen food blocks through direct ohmic heating. Electrodes made from an electrically conducting plastic make direct contact with the food, and ordinary AC power travels through the food. (Author) |
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| Temperature Responsive Control Circuit. |
08 SEP 1980 |
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| Authors:
Ronald A. Segars; DEPARTMENT OF THE ARMY WASHINGTON DC
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| The delivery of alternating current from a source to a load, especially a resistance heater, is accurately controlled as a function of temperature through the employment of a bidirectional solid state switch. A full-wave power control for the solid state switch includes a temperature probe comprising one or a combination of voltage and temperature sensitive devices. (Author) |
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| Apparatus for Determining the Textural Qualities of Food. |
15 FEB 1977 |
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| Authors:
Ronald A. Segars; DEPARTMENT OF THE ARMY WASHINGTON D C
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| The patent concsists of a punch and die test cell device for use in combination with a compression force measuring instrument in the testing of food products to determine their textural qualities, such as toughness or tenderness and also, a method of evaluating the textural qualities of a food product by determining the value of at least one of three parameters which characterize the food. These parameters are determined by ... |
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| An Experimental Study of the Freeze-Drying of Raw Beef. |
OCT 1972 |
31 pages |
| Authors:
Malcolm N. Pilsworth Jr.; Ronald A. Segars; Harold J. Hoge; ARMY NATICK LABS MASS
|
| Freeze-drying curves for small sticks of beef are presented and it was found that in many cases the specimen weight was accurately represented by a quadratic function of the time. In many runs the drying was interrupted and the cross-section of the ice core was measured, after which the freeze-drying was completed. A graph showing ice-core diameter versus percent of water (including ice) remaining in the specimen is given, showing ... |
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| Study of the Use of a Corn Flake Crumb Matrix for Corn Flake Bar, Survival Type. |
AUG 1971 |
27 pages |
| Authors:
Norman E. Harris; Donald E. Westcott; Ronald A. Segars; John G. Kapsalis; ARMY NATICK LABS MASS FOOD LAB
|
| The purpose of the study was to determine whether corn flake crumbs could replace part or all of the sugar-coated corn flakes used to produce compressed fruit-flavored corn flake bars. Results indicated that compressed fruit-flavored corn flake bars prepared from corn flake crumbs were as stable from a sensory and textural standpoint as those prepared from pulverized corn flakes. However, on increased compression pressures, the use of corn flake crumbs ... |
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| SOME EFFECTS OF JET-COMPRESSOR GEOMETRY ON EFFICIENCY: COMPRESSION-RATIO CURVES WITH TWO MAXIMA. |
JUN 1964 |
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| Authors:
Ronald A. Segars; Harold J. Hoge; ARMY NATICK LABS MASS
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| Measurements were made with a new jet compressor of different geometry, and were compared with previous results. Efficiencies, compression ratios, and other data are presented for 5 systems of gases (He: Freon-113, He:CO2, air: Freon12, air: air, and Freon-12: air). Calculations of momentumflux balance within the mixing tube were made, and various results presented in a previous report are confirmed. Frictional losses in the mixing tube are shown for two ... |
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| FURTHER STUDIES OF THE JET COMPRESSOR, |
MAY 1963 |
61 pages |
| Authors:
Harold J. Hoge; Ronald A. Segars; QUARTERMASTER RESEARCH AND ENGINEERING COMMAND NATICK MASS
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| A description is given of the various regimes of flow that can exist in the jet compressor. A new apparatus is described and data taken with it on 6 systems of gases (He:Freon-113, He:air, air:Freon-113, air:Freon-12, air:air, and Freon-12:air) are presented. The highest effi ciency achieved with the new apparatus is 0.125, at a compression ratio of 1.590, with helium as the driven gas and Freon-113 as the driving gas. ... |
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Reports by Author
