Results 101 to 110 of about 363,166 (317)

Infrared Instrumentation and Astronomy [PDF]

open access: yes, 1978
Contains reports on five research projects.Joint Services Electronics Program (Contract DAAB07-76-C-1400)National Aeronautics and Space Administration (Grant NGR 22-009-526)National Aeronautics and Space Administration (Grant NSG-7328)National ...
Benford, Richard L.   +6 more
core  

Tracking Climate and Environmental Attention: A News‐Based Composite Index

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study introduces the Climate and Environmental Attention Index, a composite indicator that tracks media attention to climate and environmental issues. Based on the Semantic Brand Score, the proposed index extracts significant signals from unstructured text, going beyond traditional measures of word frequency and sentiment.
Gianna Figà‐Talamanca   +3 more
wiley   +1 more source

STUDENT SCIENTIFIC SOCIETY IN THE FIELD OF AVIATION AND COSMONAUTICS (1910-1920s)

open access: yesВысшее образование в России, 2016
The article describes the activities of two student scientific associations that existed in 1920B1920s: the Circle for the study of Aeronautics and the Section of interplanetary connections, organized with an interval of twenty years in St.
Mikhail N. Okhotchinskiy
doaj  

The role of offset and technology transfer for installing an aeronautical industrial pole [PDF]

open access: gold, 2021
Felipe Fernández   +3 more
openalex   +1 more source

Ion‐Enriched Porous Organic Polymer for Gold Recovery From E‐Waste

open access: yesEcoEnergy, EarlyView.
A novel ion‐enriched porous organic polymer was designed and synthesized. It exhibits ultrahigh gold adsorption efficiency with capacity up to 1530.9 mg g−1, and also shows selective capture ability towards gold ions in the actual CPU leaching solution, demonstrating its promising potential for gold recovery from actual e‐waste.
Rui Zhang   +8 more
wiley   +1 more source

Self‐Maintained Thermal Charging Cells for the Efficient Harvesting of Waste Heat at Elevated Temperatures

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Thermal charging cells (TCS) face two main challenges that limit their practical applications: 1) Still lacking the systems suitable for operation under higher temperature environments, and 2) there are limitations in the self‐sustaining performance of continuous discharge under temperature differences, which holds critical significance for the real ...
Tingting Meng, Yimin Xuan, Yunjie Xiong
wiley   +1 more source

The outlook for aeronautics, 1980 - 2000 - Study report [PDF]

open access: yes
Trends in civil and military aviation in the period 1980-2000 are examined in terms of the role that NASA should play in aeronautical research and development during this period.

core   +1 more source

Langley 50th anniversary [PDF]

open access: yes, 1967
Summary of Langley Research Center accomplishments in aeronautics and astronautics during past fifty ...

core   +1 more source

First experimental tests on the prototype of a capacitive oil level sensor for aeronautical applications

open access: diamond, 2023
Filippo Attivissimo   +4 more
openalex   +2 more sources

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