Results 111 to 120 of about 2,184,733 (309)

Development of n‐type ZnAlInO Semiconductor Materials for Thermoelectric Generators in Aerospace Applications

ChemistryOpen, EarlyView.
Herein, the synthesis and production of n‐type ZnAlInO semiconductor materials is achieved utilizing sol–gel and cold pressing methods for fabrication in aerospace thermoelectric generators applications. The Seebeck coefficient and power factor values increase with the addition of template samples, reaching a maximum of −162.63 μV K−1 and 0.44 mW mK−2,
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

Cluster as current sheet surveyor in the magnetotail [PDF]

Annales Geophysicae, 2013
A novel analysis technique is presented to estimate the current sheet thickness unambiguously and directly, without associating time series data with spatial structure.
Y. Narita, R. Nakamura, W. Baumjohann
doaj   +1 more source

MISAT: Designing a Series of Powerful Small Satellites Based upon Micro Systems Technology [PDF]

, 2007
MISAT is a research and development cluster which will create a small satellite platform based on Micro Systems Technology (MST) aiming at innovative space as well as terrestrial applications.
Gill, E.,, Monna, G.L.E.,, Scherpen, J.M.A.,, Verhoeven, C.J.M.,   +3 more
core   +2 more sources

An exploration of market mechanisms to the wicked problem of space debris 太空垃圾棘手问题的市场机制探究 Una exploración de los mecanismos del mercado para resolver el complejo problema de los desechos espaciales

Risk, Hazards &Crisis in Public Policy, EarlyView.
Abstract Near‐earth orbits are becoming congested because of a rapid growth in the number of satellites and space debris, which presents a real threat to the sustainable use of space and the safety of the Earth. Despite space scientists and public policymakers having been actively seeking solutions for decades, solving the problem has been put off ...
Anna Ya Ni, Maureen Mayala, Faith Victoria Ni   +2 more
wiley   +1 more source

PAseos Simulates the Environment for Operating multiple Spacecraft [PDF]

arXiv, 2023
The next generation of spacecraft is anticipated to enable various new applications involving onboard processing, machine learning and decentralised operational scenarios. Even though many of these have been previously proposed and evaluated, the operational constraints of real mission scenarios are often either not considered or only rudimentary. Here,
arxiv  

Locations of Auroral Kilometric Radiation Bursts Inferred From Multi-Spacecraft Wideband Cluster VLBI Observations i: Description of Technique and Initial Results

, 2003
The Cluster Wideband Data instrument has been used to determine the locations of auroral kilometric radiation (AKR) using very long baseline interferometry.
Alexander, Alexander, Alexander, Barton, Burns, Ergun, Feldstein, Frank, Gaelzer, Gaelzer, Gallagher, Gallagher, Gurnett, Gurnett, Huff, Kaiser, Kaiser, Kurth, Louarn, R. L. Mutel, Schreiber, Wu   +21 more
core   +1 more source

Investigation of intermittency in magnetohydrodynamics and solar wind turbulence: scale-dependent kurtosis [PDF]

, 2011
The behavior of scale-dependent (or filtered) kurtosis is studied in the solar wind using magnetic field measurements from the ACE and Cluster spacecraft at 1 AU.
Matthaeus, William H., Osman, Kareem T., Oughton, Sean, Wan, Minping   +3 more
core   +2 more sources

Performance Analysis of Twins4Space: Latency and Data Rates in a SpaceWire Network

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Modular Space Systems are an innovative and future‐oriented concept, offering the flexibility to adapt to diverse mission requirements. In our previous paper, we introduced the Twins4Space project, a modular and flexible architecture utilizing a SpaceWire network to connect distributed nodes.
Stefan Lindörfer, Sven Wente, Julian Rothe, Sergio Montenegro   +3 more
wiley   +1 more source

Space Economy and Sustainability: A Systematic Review

Sustainable Development, EarlyView.
ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente, Federico Caviggioli, Lara Agostini   +2 more
wiley   +1 more source

Distributed angle‐only orbit determination algorithm for non‐cooperative spacecraft based on factor graph

IET Radar, Sonar & Navigation
Bayesian filtering provides an effective approach for the orbit determination of a non‐cooperative target using angle measurements from multiple CubeSats.
Zhixun Zhang, Keke Zhang, Leizheng Shu, Zhencai Zhu, Meijiang Zhou   +4 more
doaj   +1 more source