19 research outputs found

    Method of and apparatus for measuring temperature and pressure

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    Laser beams are transmitted through gas to a reflecting target, which may be either a solid surface or particulate matter in gas or the gas molecules. The return beams are measured to determine the amount of energy absorbed by the gas. For temperature measurements, the laser beam has a wavelength at which the gas exhibits a relatively temperature sensitive and pressure insensitive absorption characteristic for pressure measurements, the laser beam has a wavelength at which the gas has a relatively pressure sensitive and temperature insensitive absorption characteristic. To reduce the effects of scattering on the absorption measurements a reference laser beam with a weak absorption characteristic is transmitted colinearly with the data beam having a strong absorption characteristic. The two signals are processed as a ratio to eliminate back scattering. Embodiments of transmitters and receivers described include a sequential laser pulse transmitter and receiver, a simultaneous laser pulse transmitter and receiver

    Engineering a laser remote sensor for atmospheric pressure and temperature

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    A system for the remote sensing of atmospheric pressure and temperature is described. Resonant lines in the 7600 Angstrom oxygen A band region are used and an organic dye laser beam is tuned to measure line absorption changes with temperature or pressure. A reference beam outside this band is also transmitted for calibration. Using lidar techniques, profiling of these parameters with altitude can be accomplished

    GSFC short pulse radar, JONSWAP-75

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    In September 1975, the Goddard Space Flight Center operated a short pulse radar during ocean wave measuring experiments off the coast of West Germany in the North Sea. The experiment was part of JONSWAP-75. The radar system and operations during the experiment are described along with examples of data

    Exploring the Process of Ethical Leadership: The Mediating Role of Employee Voice and Psychological Ownership

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    The study of ethical leadership has emerged as an important topic for understanding the effects of leadership in organizations. In a study with 845 working adults across multiple organizations, the relationships between ethical leadership with positive employee outcomes were examined. Results suggest that ethical leadership is related to both psychological well-being and job satisfaction in employees, but the processes are different. Employee voice mediated the relationship between ethical leadership and psychological well-being. Feelings of psychological ownership mediated the relationship between ethical leadership and job satisfaction. A discussion of theoretical and practical implications concludes the article
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