Results 81 to 90 of about 3,725,755 (300)

Módulo de pouso lunar

open access: yes, 2016
Ensino Médio::FísicaSimulação em que o usuário controla os propulsores de um módulo de pouso lunar, a fim de fazer o maior número possível de pousos suaves em zonas planas antes que o combustível do módulo se ...
Dubson, Michael
core   +2 more sources

Galileo reveals new lunar features

open access: yesEos, Transactions American Geophysical Union, 1991
Exciting new images of the Moon taken by the Jupiter‐bound Galileo spacecraft December 8 and 9 promise to expand understanding of lunar geology. Galileo viewed the Moon from a new perspective, showing for the first time, through spectral techniques, the mineralogical composition of the lunar crust on the far side.
openaire   +1 more source

The Momentum of ‘Developed’: Bodies of Water, Aging Bodies and Malta's Interventions at the UN

open access: yesHistory, EarlyView.
Abstract Histories of major powers continue to shape how many scholars conceptualize internationalism. By focusing on Malta's interventions at the UN challenges, this article challenges such narrative. In particular, it examines Arvid Pardo's 1967 petition that the seabed be reconceived and protected as the ‘common heritage of mankind’ and Vincent ...
Brianne Wesolowski
wiley   +1 more source

Petrochemistry and Chemical Features of Lunar Glassy Spherules [PDF]

open access: yesSymposium - International Astronomical Union, 1972
The major elements of glassy spherules from samples 12001.73, 12057.60 and 12070.37 of lunar fines have been determined by electron probe analysis. The bulk chemistry of these spherules (which are between 200 μm and 62 μm in size) falls in most cases within the range of gabbro-peridotite and gabbro-anorthosite.In individual spherules, the grade of ...
openaire   +1 more source

STRATIFIED ADAPTATION: Infrastructure, Elevation, and Cascading Floods in the Urban Mekong Delta

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Flood‐prone cities in the global South are increasingly the target of infrastructure projects aimed at building climate ‘resilience’. At the same time, residents of these cities take adaptation to flooding into their own hands. In this article we examine the interrelationship between household‐scale and urban‐scale flood mitigation projects in
Lizzie Yarina   +3 more
wiley   +1 more source

Investigating the Impact of Lunar Rover Structure and Lunar Surface Characteristics on Antenna Performance

open access: yesSensors
This article explores the influence of lunar regolith and rover structure, such as mast design and material composition, on antenna parameters. It focuses on the distinctive difficulties of communication in the lunar environment, which need specialized ...
Rida Gadhafi   +5 more
doaj   +1 more source

Papers presented to the second inter-team meeting of the Basaltic Volcanism Study Project, a Lunar Science Institute study project, Houston, Texas, 20-23 September 1977

open access: yes, 1977
Conference session topics include volcanism on Mars; geochemical/ petrological constraints on percent and compositions of partial melts; mechanics of melt migration and accumulation; volatiles in planetary; tectonics environment- basaltic volcanism; and ...

core  

Osteological, Biological, and Genetic Consequences of Colonization of Fresh Waters by Marine Cottoid Fishes (Cottidae)

open access: yesIntegrative Zoology, EarlyView.
Lacustrine forms of Triglopsis from North American and European lakes are at different stages of evolution, making them a suitable model for testing hypotheses about evolutionary patterns and rates. An integrative analysis of morphological, genetic, and biological adaptations occurring in lacustrine forms of the genus Triglopsis was carried out.
Valentina G. Sideleva   +4 more
wiley   +1 more source

Dense Feature Matching for Hazard Detection and Avoidance Using Machine Learning in Complex Unstructured Scenarios

open access: yesAerospace
Exploring the Moon and Mars are crucial steps in advancing space exploration. Numerous missions aim to land and research in various lunar locations, some of which possess challenging surfaces with unchanging features. Some of these areas are cataloged as
Daniel Posada, Troy Henderson
doaj   +1 more source

Lunar Science six

open access: yes, 1975
You must extract the zipped files before using. To begin viewing the abstracts, click on the file "index.html."Recent investigations of the moon are reported.

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