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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 217 records · Page 12

Long-Term High-Temperature High-Pressure Cable for Geothermal Logging Tools

Downhole logging tools are commonly used to characterize multi-thousand-foot geothermal wells. The elevated temperatures, pressures, and harsh chemical environments present significant challenges for the long-term operation of these tools, especially when real-time data transmission to the surface is required via data cable lines. Teflon-based single or multi-conductor cables with grease-filled cable heads are typically used for downhole tools. However, over extended periods of operation, the gr

15 GEOTHERMAL ENERGY↗

Site H - Event Log / Derived Data

This dataset contains the event log table that provides 10-minute wind statistics from the scanning lidar at AWAKEN's site H. This is a good dataset to start from for people unfamiliar with the AWAKEN project.

17 WIND ENERGY↗

AWAKEN event log - site A1

This dataset contains the event log table that provides 10-minute wind statistics from the scanning lidar at AWAKEN's site A1. This is a good dataset to start from for people not too familiar with the AWAKEN project.

17 WIND ENERGY↗

Site A1 - Event Log / Derived Data

This dataset contains the event log table with 10-minute wind statistics from the scanning lidar at AWAKEN's site A1. This is a good dataset to start from for people unfamiliar with the AWAKEN project.

17 WIND ENERGY↗

Site A2 - Event Log / Derived Data

This dataset contains the event log table with 10-minute wind statistics from the scanning lidar at AWAKEN's site A2. This is a good dataset to start from for people unfamiliar with the AWAKEN project.

17 WIND ENERGY↗

Sites A1, A2, & H - Event Log / Derived Data

This dataset contains the event log table that provides 10-minute wind statistics from the scanning lidars at AWAKEN's sites A1, A2, and H. This is a good dataset to start from for people unfamiliar with the AWAKEN project.

17 WIND ENERGY↗

Log of Apollo 11

Pictorial and chronological log of Apollo 11 lunar landing mission

Source record↗

New materials for fireplace logs

Fibrous insulation and refractory concrete are used for logs as well as fireproof walls, incinerator bricks, planters, and roof shingles. Insulation is lighter and more shock resistant than fireclay. Lightweight slag bonded with refractory concrete serves as aggregrate.

Kieselback, D. J.↗

The log-periodic array at the Clark Lake Radio Observatory

A log-periodic array, 3 km in length, is operating at Clark Lake Radio Observatory. It makes one-dimensional sweeps of the solar brightness distribution in the frequency range 20 to 65 MHz once per sec. The phasing of the array and the receiving system are described, as well as how the dynamic spectra are analyzed for the positions of solar radio sources. Simultaneous measurements at many frequencies enable the observer to remove the effects of ionospheric refraction and to obtain fundamental positions to an accuracy of about one arc min at decametric wavelengths. Fundamental positions are given for Cassiopeia A.

Erickson, W. C.↗

MAIL LOG, program theory, volume 2

Information relevant to the MAIL LOG program theory is documented. The L-files for mail correspondence, design information release/report, and the drawing/engineering order are given. In addition, sources for miscellaneous external routines and special support routines are documented along with a glossary of terms.

Harris, D. K.↗