Results 81 to 90 of about 1,149 (246)
The Source Brightness Distribution of Terrestrial Gamma‐Ray Flashes From the ALOFT Flight Campaign
Abstract Terrestrial Gamma‐ray Flashes (TGFs) are naturally occurring phenomena that consist of bursts of gamma radiation associated with thunderclouds. Measurements of TGFs have been predominantly based on satellite instruments due to the significantly larger observation area compared to ground measurements. Due to atmospheric attenuation of the gamma
A. N. Fuglestad +15 more
wiley +1 more source
Hiss Wave Evolution During Substorms Based on Van Allen Probes Observations
Abstract Hiss waves frequently occur in the plasmasphere or plumes, playing a key role in energetic electron loss in the Earth's inner magnetosphere. While previous studies have linked hiss wave enhancements in the outer plasmasphere (just inside the plasmapause) to electron injections during substorms, their evolution across various substorm phases ...
Xiao‐Chen Shen +7 more
wiley +1 more source
Interstellar Migration, the Population ‘Problem’ and the Climate Emergency
Critical Quarterly, EarlyView.
Anna Hartnell
wiley +1 more source
Cd2SnO4 exhibits excellent thermoelectric properties with a high Seebeck coefficient, power factor, and figure of merit, surpassing Bi2Te3. It shows both positive and negative Seebeck coefficient values, making it suitable for diverse applications. Its high electrical conductivity and low thermal conductivity enhance efficiency, while its negative Hall
Adel Bandar Alruqi, Nicholas O. Ongwen
wiley +1 more source
Launch support: Managing complementor bottlenecks in the disruptive innovation of small satellites
Abstract Research Summary Through both qualitative and quantitative analyses of large‐rocket providers' support for small‐satellite manufacturers before the emergence of small rockets, we examine how disruptors to an incumbent ecosystem gain support from complementors of the incumbent technology.
Yue Song, Yue Maggie Zhou, Xiaoping Zhao
wiley +1 more source
Small spacecraft formation-flying using potential functions [PDF]
A group of small spacecraft able to change its orbital formation through using the potential function is discussed. Spacecraft shapes, sizes and manoeuvering capabilities in general are not identical. All objects are assumed to manoeuver under discrete thruster effects.
Badawy, Ahmed, McInnes, Colin R.
openaire +1 more source
Robust decentralised state estimation for formation flying spacecraft
In this study, a robust decentralised state estimation algorithm named decentralised Huber‐based cubature filtering (DHCF) for formation flying spacecraft is proposed. In this algorithm, a decentralised architecture is designed, in which each deputy estimates its relative state with respect to the chief based on its own exteroceptive sensor measurement.
Yu Wang, Xiaogang Wang, Naigang Cui
openaire +1 more source
This article discusses the “lab‐to‐life” journey of supercapacitors, highlighting various electrode materials including carbon‐based materials, transition metal oxides, MXenes, high‐entropy materials, and hybrid composites, along with advanced electrode materials engineering strategies.
Snehal L. Kadam +6 more
wiley +1 more source
Application of Synchronization to Formation Flying Spacecraft: Lagrangian Approach [PDF]
Soon-Jo Chung +2 more
openalex +1 more source
Effect of Boulder‐Size Distributions on Thermally Derived Rock Abundances on the Moon
Abstract Rock abundance, defined as the surface's fractional area covered by rocks, is used to characterize the Moon's regolith, decipher its impact history, and assess potential landing sites. By definition, it should be agnostic to rock‐size distributions. However, it has been suggested that rock abundances, derived from surface temperatures measured
Brian Amaro +4 more
wiley +1 more source

