4,388 research outputs found
LDEF solar cell radiation effects analysis
Because of the extended time that the Long Duration Exposure Facility (LDEF) mission stayed in space, the solar cells on the satellite experienced greater environments than originally planned. The cells showed an overall degradation in performance that is due to the combined effects of the various space environments. The purpose of this analysis is to calculate the effect of the accumulated radiation on the solar cells, thereby helping Marshall Space Flight Center (MSFC) to unravel the relative power degradation from the different environments
An analysis of the New England shoe industry
This item was digitized by the Internet Archive
The structures of the ethyl grignard reagent in diethyl ether and a troponoid photo-oxidation product
PRODUCTIVITY IN U.S. FOOD AND AGRICULTURE: IMPLICATIONS FOR RESEARCH AND EDUCATION
Productivity Analysis,
Photoelectric sensitization of alkali surfaces by means of electric discharges in water vapor
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign
TESTING FOR DIFFERENCES IN CONSUMER ACCEPTANCE OF IDENTICALLY APPEARING POTATO VARIETIES
Like many other vegetables, potatoes are marketed by type (russet, round white, red), rather than by variety (Burbak, Katahdin, Pontiac). Although varieties of the same type have similar outward appearances, they are also known to have different internal and cooking characteristics. There has been considerable controversy over the need for variety identification promotion in the potato industry. A consumer response study that distinguished between user satisfaction with different potato varieties was viewed as a step toward resolving this issue.Consumer/Household Economics,
Keeping out the Little Guy: An Older Contract Advisor\u27s Concern, a Younger Contract Advisor\u27s Lament
Ultrasonic Thermometry for Recession Measurements in Ablative Materials
Recent developments in ultrasonic instrumentation & sensors, improved signal processing, and high speed data acquisition have rekindled interest in ultrasonic thermometry and made temperature localization feasible and economically attractive to a wider range of applications. Ultrasound-based temperature measurements offer several advantages: they are non-intrusive, have high temporal response, isolate the sensor from explosive or chemically harsh environments and do not adversely influence thermal transport. Ultrasonic thermometry techniques rely on precise measurements of ultrasonic time-of-flight (ToF) which forms the basis for many applications including measurements of flow, heat flux, temperature, ablation and strain. In this report, we characterize the ultrasonic propagation characteristics of several ablative materials. Properties relevant to ultrasonic thermometry include backscattering properties, attenuation coefficient, ultrasonic velocity, and velocity-temperature coefficient. We will present preliminary experiments directed at developing ultrasonic methods for simultaneous temperature and recession measurements on ablators. Various approaches to measuring recession, heat flux, and internal temperature profiles in ablators will be described
Automobile Insurance--Assignment, Subrogation and the Real Party in Interest Statute in Missouri
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