Results 71 to 80 of about 20,805,604 (297)

Lunar Trailblazer Spacecraft Tracking and Mission Recovery Attempt: Characterization of Status and Behavior of a Non‐Cooperative Object in Cis‐Lunar Space

Earth and Space Science
Unexpectedly following launch, the Lunar Trailblazer mission experienced software anomalies that led it to orient solar panels away from the sun and lose communication with Earth. This paper describes efforts to determine the spacecraft state and attempt
B. L. Ehlmann, J. Bellerose, G. Lantoine, E. Furlan, E. Scire, S. Fajardo‐Acosta, L. Bennett, M. Sanchez Net, T. J. W. Lazio, M. Brozović, J. Masiero, A. V. Steckel, P. A. Burke, M. Kimura, S. Foxman, M. P. M. Zaw, L. M. Lee, F. Clarke, M. Hauge, D. McDonald, J. Adler, R. Strauss, D. Trilling, C. S. Edwards, M. C. Nolan, D. Lyster, L. Robinson, A. T. Klesh, C. C. Seybold   +28 more
doaj   +1 more source

Architecture of a microgrid energy management system

, 2011
In the framework of deregulated electricity markets, distributed generation and load management are emerging as new technologies. In this context, the microgrid concept adds value to distributed energy resources (DER) by aggregating them into autonomous ...
José Oyarzabal, Jon Anduaga, Asier Gil de Muro, Jimeno, Joseba, Anduaga, Jon, Oyarzabal, José, De Muro, Asier Gil, Joseba Jimeno   +7 more
core   +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

Open-Source Real-Time SDR Platform for Rapid Prototyping of LANS AFS Receiver

Aerospace
The Lunar Augmented Navigation Service (LANS) is the lunar equivalent of GNSS for future lunar explorations. It offers users accurate position, navigation, and timing (PNT) capabilities on and around the Moon.
Rion Sobukawa, Takuji Ebinuma
doaj   +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

Strategies and prospects for energy storage in future lunar base

Advances in Mechanical Engineering
Lunar energy storage systems face critical challenges from extreme thermal cycling (−173°C to 127°C) and prolonged darkness periods (354-hour nights). This study systematically evaluates three categories of lunar-compatible technologies: Electrochemical ...
Song Lei, Zhang Guoqing, Wang Yaohui, Wang Chang, Liu Bo   +4 more
doaj   +1 more source

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

History, 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

Improved system operations with high penetration of wind power : a dialog between academia and industry - Ireland [PDF]

, 2010
Panel session submission for the IEEE Power and Energy Society (PES) 2010 General Meeting, July 25-29 2010, Minneapolis, MinnesotaThis is a submission to a panel session at the 2010 IEEE PES General Meeting. It discusses effective collaboration between
Power, Michael, Michael Power, O\u27Malley, Mark, O'Malley, Mark, Mark O'Malley   +4 more
core   +1 more source

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

International 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, Vuong Kha Tu, Tran Kim Bao, Ly Quoc Dang   +3 more
wiley   +1 more source

Solar lunar power [PDF]

, 1994
Current and projected technology is assessed for photovoltaic power for a lunar base. The following topics are discussed: requirements for power during the lunar day and night; solar cell efficiencies, specific power, temperature sensitivity, and ...
Landis, Geoffrey A., Bailey, Sheila G.
core