2,111 research outputs found

    Advanced microwave sounding unit study for atmospheric infrared sounder

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    The Atmospheric Infrared Sounder (AIRS), the Advanced Microwave Sounding Unit (AMSU-A), and the Microwave Humidity Sounder (MHS, formerly AMSU-B) together constitute the advanced sounding system facility for the Earth Observing System (EOS). A summary of the EOS phase B activities are presented

    Analysis of Jovian decametric data: Study of radio emission mechanisms

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    The Voyager 1 and Voyager 2 Planetary Radio Astronomy Experiments (PRA) have produced the finest set of Jovian decametric radio emission data ever obtained. Jovian decametric L-burst and S-burst arcs were characterized and the data reconciled with models for the radio emission geometry and mechanisms. The first major results involve comparisons of the distribution of arc separations with longitudes. The identification and analyses of systematic variations in the PRA data have yielded interesting results, but only the most obvious features of the data were examined. Analyses of the PRA data were extended with the use of new 6-Sec formats that are more sensitive to the S-bursts

    “On-Board STS-Crane on a Catamaran Container Vessel as Combination of Jib- and Gantry-Crane Serving Small Ports, Improving Logistic Efficiency.“

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    AbstractThe 7FP-Project “EU-Cargoxpress” developed a concept of an innovative, sustainable catamaran cargo-vessel with an on-board-crane able to serve small coastal and fluvial ports without proper Ship-to-Shore (STS) cranes.The crane as part of a covering multifunctional “sail-wing” is hinged in a moving and revolving Superstructure, covers the whole vessel length and cantilevers over the perimeter of the vessel.The goal is to accelerate the movement of container and general cargo from the vessel to the port and making maritime transport more competitive

    Destroying coherence in high temperature superconductors with current flow

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    The loss of single-particle coherence going from the superconducting state to the normal state in underdoped cuprates is a dramatic effect that has yet to be understood. Here, we address this issue by performing angle resolved photoemission spectroscopy (ARPES) measurements in the presence of a transport current. We find that the loss of coherence is associated with the development of an onset in the resistance, in that well before the midpoint of the transition is reached, the sharp peaks in the ARPES spectra are completely suppressed. Since the resistance onset is a signature of phase fluctuations, this implies that the loss of single-particle coherence is connected with the loss of long-range phase coherence.Comment: 7 pages, 7 figure

    Analysis of Jovian decamteric data: Study of radio emission mechanisms

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    This research effort involved careful examination of Jovian radio emission data below 40 MHz, with emphasis on the informative observations of the Planetary Radio Astronomy experiment (PRA) on the Voyager 1 and 2 spacecraft. The work is divided into three sections, decametric arcs, decametric V bursts, and hectometric modulated spectral activity (MSA)

    Atmospheric frontal zone studies

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    The research supported by this contract and directed Activities in the inversion and interpretation of data produced by the Nimbus-7 scanning multichannel microwave radiometer (SMMR) are reported. There were five principal subjects: (1) modeling of the emissivity of foam patches on the ocean surface; (2) inversion of radiometric data by a multidimensional algorithm; (3) an operational water vapor retrieval algorithm; (4) inference of Antarctic firm accumulation rates; and (5) inference of water vapor over the Arctic sea ice
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