Results 101 to 110 of about 383,072 (432)
Laser Communication and Coordination Control of Spacecraft Swarms [PDF]
arXiv, 2019 Swarms of small spacecraft offer whole new capabilities in Earth observation, global positioning and communications compared to a large monolithic spacecraft. These small spacecrafts can provide bigger apertures that increase gain in communication antennas, increase area coverage or effective resolution of distributed cameras and enable persistent ...
arxiv
IEEE Access, 2018 This paper investigates the distributed state estimation problem for spacecraft thermal experiments over sensor networks. The state estimators are designed in a distributed fashion to estimate the surplus temperature of the target node in the spacecraft.
Chang Liu +4 more
doaj +1 more source
Common approach to solving SGEMP, DEMP, and ESD survivability [PDF]
, 1977 System Generated Electromagnetic Pulse (SGEMP) and Dispersed Electromagnetic Pulse DEMP) are nuclear generated spacecraft environments. Electrostatic discharge (ESD) is a natural spacecraft environment resulting from differential charging in magnetic ...
Ling, D.
core +1 more source
Orbit control of high area-to-mass ratio spacecraft using electrochromic coating [PDF]
, 2010 This paper presents a novel method for the orbit control of high area-to-mass ratio spacecraft, such as spacecraft-on-a-chip, future „smart dust‟ devices and inflatable spacecraft.
Colombo, C. +2 more
core
Electronically Steerable Antennas for Spacecraft-to-Spacecraft Communications
Navigation, 1965 This paper presents several electronically steerable antenna techniques, which for frequencies from 1 to 35 gc, show promise for application to spacecraft-to-spacecraft communications. It is indicated that such antennas can be realistically designed to provide maximum antenna gain for given weight, maximum bandwidth, and the capability of illuminating ...
openaire +2 more sources
Analysis of Solar Radiation Shielding in Space for Climate Mitigations of the Earth
Energy Science &Engineering, EarlyView.Space solar shielding over the Earth. ABSTRACT Solar radiation modification (SRM) through space solar shielding is a proposed strategy to mitigate global warming. This approach involves reflecting sunlight back into space while allowing Earth's infrared radiation to escape, thereby controlling climate change.
Kyung Bae Jang, Tae Ho Woo
wiley +1 more source
Journal of Chemical Technology &Biotechnology, EarlyView.Abstract Microbiologically influenced corrosion (MIC) is acknowledged as a significant type of corrosion due to its extensive impact on metal/alloy surfaces. As MIC accounts for 20% of all corrosion instances, it is a critical factor causing service failure of engineering materials such as steel and aluminium alloy.
Brinda +4 more
wiley +1 more source
Sparse temporal disaggregation
Journal of the Royal Statistical Society: Series A (Statistics in Society), Volume 185, Issue 4, Page 2203-2233, October 2022., 2022 Abstract Temporal disaggregation is a method commonly used in official statistics to enable high‐frequency estimates of key economic indicators, such as gross domestic product (GDP). Traditionally, such methods have relied on only a couple of high‐frequency indicator series to produce estimates. However, the prevalence of large, and increasing, volumes
Luke Mosley +2 more
wiley +1 more source
Macromolecular Materials and Engineering, EarlyView.This study explores flame retardant transfer from epoxy resins to composites, focusing on fire behavior and fire stability. Using DGEBA and dicyandiamide hardener in glass fiber composites, cone calorimeter, and bench‐scale fire resistance tests reveal that while higher FR levels (30–50 wt.%) reduce fire risk, it weakens the mechanical performance ...
Maria Jauregui Rozo +5 more
wiley +1 more source
Evaluation of Optical Magnitude of Deep Space Spacecraft [PDF]
YSC'14 Proceedings of Contributed Papers (eds. G. Ivashchenko, A.
Golovin), Kyiv, Kyivskyi Universytet, pp. 82-86, 2007, 2007 Optical-electric technology can measure the tangential position and velocity of spacecraft. To know the feasibility of the use of optical-electric technology, it is necessary to estimate the magnitude of spacecraft first. Since the spacecrafts are non-self-illumination objects, the estimation formulas of the optical magnitude of spacecraft is ...
arxiv