Results 71 to 80 of about 6,682,882 (260)

Development of a lunar base.

, 2005
A lunar program is one of the goals of the 21st century. Over the past decades many plans were developed by the National Aeronautics and Space Administration (NASA) as well as Europe, Japan, China, and India on space exploration.
Le, Phong Viet
core   +3 more sources

Indigenous lunar construction materials [PDF]

, 1991
The utilization of local resources for the construction and operation of a lunar base can significantly reduce the cost of transporting materials and supplies from Earth.
Rogers, Wayne P., Sture, Stein, Rogers, Wayne   +2 more
core  

River‐Scale Evaluation of a Floating LED Light Array for Behavioral Guidance of American Eel

River Research and Applications, EarlyView.
ABSTRACT Exploiting the sensory physiology of migratory fishes to guide them away from hazards like hydroelectric turbines is of interest to regulatory agencies and hydropower operators to achieve conservation and management goals. Here we describe a river‐scale experiment where out‐migrating adult American eel (Anguilla rostrata) were tracked ...
Chris K. Elvidge, M. E. Cole MacLeod, Daniel Hatin, Alexandre Guindon, René Dion, Scott Schlueter, Justin Ecret, Jana R. Lantry, Thomas C. Pratt, David Stanley, Jake K. L. La Rose, Paul T. Jacobson, Douglas Bradley, Steven J. Cooke   +13 more
wiley   +1 more source

Lunar bases and space activities of the 21st century [PDF]

, 1988
Covers subjects ranging from engineering analyses of space transportation networks and planetary surface outposts to legal, sociological, and public policy discussions related to space program initiatives over the next few decades.

core  

Glocal Regenerative Viticulture: Exploring Sustainable Winemaking Strategies in Europe

Sustainable Development, EarlyView.
ABSTRACT The global wine industry is transforming due to climate change challenges. Glocalization is increasingly relevant in winemaking, where geographical and cultural diversity requires context‐specific solutions in the existing sustainability spectrum in viticulture.
Aleksandra N. Volkova, Ekaterina A. Ivanova, Aleksandr K. Vorobev, Flavio P. Martins, Michael E. Akim   +4 more
wiley   +1 more source

Preparation and evaluation of GCD-1 lunar regolith simulant based geopolymer activated by solid sodium silicate

Case Studies in Construction Materials
In this study, a new lunar regolith simulant, named ''GCD-1'', was formulated by combining various minerals, such as anorthite, albite, pyroxene, ilmenite, slag, and fly ash.
Shuo Li, Zihan Zhou, Guo Hu, Jun Wu
doaj   +1 more source

Vine Tendril‐Inspired Cold‐Programmable Shape‐Memory Polymer Composites Using Sugar Beet Pulp

Small, EarlyView.
Vine tendrils inspire a bio‐derived, cold‐programmable shape‐memory polymer composite (SMPC). Magnetically guided sugar beet pulp creates mesoscale heterogeneity within a glassy matrix, producing built‐in mechanical asymmetry for rapid, solvent‐free programming by simple stretching.
Wei Huang, Vikramjeet Singh, Yu Wang, Junhao Chen, Mingjing Zhang, Gary J. Lye, Helen C. Hailes, Luna Jiang, Eral Bele, Manish K. Tiwari   +9 more
wiley   +1 more source

Obligation, Exemption and Remission: The Multi‐Layered Functioning of the Poll Tax (Cizye) in Ottoman Governance during the Long Eighteenth Century

History, EarlyView.
Abstract This article examines the poll tax (Ottoman Turkish cizye; Arabic jizya) levied on non‐Muslim subjects of the Ottoman Empire, not as a fixed, one‐dimensional tax item within the Ottoman fiscal system but as a multi‐layered administrative instrument organized around obligation, exemption and remission.
ÖZLEM BAŞARIR
wiley   +1 more source

Use of orbiting reflectors to decrease the technological challenges of surviving the lunar night [PDF]

, 2011
In this paper the feasibility of using lunar reflectors to decrease the technological challenges of surviving the lunar night is investigated. This is achieved by attempting to find orbits in the two-body problem where the argument of periapsis is ...
Bewick, Russell, Sanchez Cuartielles, Joan-Pau, McInnes, Colin   +2 more
core   +3 more sources

THE CONSTRUCTION OF LUNAR BASES BY USING GYROSCOPIC MINING MACHINES

Innovatics and Expert Examination, 2019
The project of realization of technology of processing of a lunar regolith for construction on the moon of permanent settlements by means of gyroscopic mountain mining machines is presented.The robotic complex implementing this technology includes a lunar gyroscopic mining machine (LGGM), a mechanical shovel for the collection and transportation of ...
openaire   +1 more source