scholarly journals Developing the active trap model for CCD charge transfer optimisation in large-scale space missions

2020 ◽  
Author(s):  
Thomas W. Buggey ◽  
Matthew R. Soman ◽  
David J. Hall ◽  
Steven Parsons ◽  
Nathan Bush ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Large Scale ◽  
Scale Space ◽  
Space Missions ◽  
Active Trap

scholarly journals A Reliability Engineering Approach for Managing Risks in CubeSats

Aerospace ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 121 ◽  
Author(s):  
Alessandro Menchinelli ◽  
Francesca Ingiosi ◽  
Ludovico Pamphili ◽  
Paolo Marzioli ◽  
Riccardo Patriarca ◽  
...  
Keyword(s):  
Large Scale ◽  
Binary Systems ◽  
Failure Modes ◽  
Scale Space ◽  
Space Missions ◽  
Coding System ◽  
Reliability Engineering ◽  
Engineering Approach ◽  
Readiness Level ◽  
Criticality Analysis

Besides large-scale space missions, the spread of CubeSats for a variety of applications is increasingly requiring the development of systematic approaches for risk management. Being these applications are based on components with low TRL (Technology Readiness Level) or with limited performance data, it is required to define approaches which ensure a systematic perspective. This paper aims to present a reliability engineering approach based on FMECA (Failure Mode, Effects, and Criticality Analysis) to manage CubeSat reliability data and prioritize criticalities early in the design phase. The approach firstly proposes an alpha-numeric coding system to support the identification and labeling of failure modes for typical CubeSats’ items. Subsequently, each FMECA coefficient (i.e., Severity, Occurrence, Detectability) has been linked to the CubeSat’s structural properties, reducing subjectivity by means of techno-centric proxy indicators. The approach has been validated in the design phases of a 6-Units university CubeSat for the observation of M-Dwarf stars and binary systems. The performed analysis supported the design process and allowed to identify the major criticalities of the CubeSat design, as demonstrated in the extended case study included in the paper. The formalized method could be applied to design procedures for nano-satellites, as well as being expanded for research and development in a variety of space missions.

Capture Strategy Based on a Distributed Control System for a Large-scale Space End-Effector

ROBOT ◽  
2011 ◽  
Vol 33 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Dangyang JIE ◽  
Fenglei NI ◽  
Yisong TAN ◽  
Hong LIU ◽  
Hegao CAI
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Large Scale ◽  
Scale Space ◽  
Distributed Control System ◽  
End Effector

Progressive Large Scale-Invariant Image Matching in Scale Space

2017 ◽  
Author(s):  
Lei Zhou ◽  
Siyu Zhu ◽  
Tianwei Shen ◽  
Jinglu Wang ◽  
Tian Fang ◽  
...  
Keyword(s):  
Image Matching ◽  
Large Scale ◽  
Scale Space ◽  
Scale Invariant

Scaling Analyses for Large-Scale Space-Based Membrane Optics

AIAA Journal ◽  
2011 ◽  
Vol 49 (7) ◽  
pp. 1313-1323 ◽  
Author(s):  
Michael J. Shepherd ◽  
Richard G. Cobb ◽  
Anthony N. Palazotto ◽  
William P. Baker
Keyword(s):  
Large Scale ◽  
Scale Space ◽  
Scaling Analyses

Piezoelectric polymers actuators for precise shape control of large scale space antennas

2007 ◽  
Author(s):  
Qin Chen ◽  
Don Natale ◽  
Bret Neese ◽  
Kailiang Ren ◽  
Minren Lin ◽  
...  
Keyword(s):  
Shape Control ◽  
Large Scale ◽  
Scale Space ◽  
Piezoelectric Polymers ◽  
Space Antennas ◽  
Precise Shape

Technological Imaginaries, Feasibilities, Syndromes, and Catastrophes

Dark Skies ◽  
2020 ◽  
pp. 104-142
Author(s):  
Daniel Deudney
Keyword(s):  
Genetic Engineering ◽  
Science Fiction ◽  
Technology Assessment ◽  
Large Scale ◽  
New Technologies ◽  
Scale Space ◽  
Technology Governance ◽  
Existential Risk ◽  
Space Colonization ◽  
Space Activities

Space expansionism, science fiction, and space developments are intimately linked. SF from Verne, Wells, and others inspires space expansionists, and SF is shaped by space discoveries. SF makes space expansionism seem plausible but is often unbound by scientific possibility. An assessment of building block, life-engineering, and transformative technologies reveals that large-scale space activities are becoming more feasible, but creating enclosed ecologies, geo-engineering and terraforming remain doubtful. Anticipating the consequences of new technologies (technology assessment) remains difficult. Technology governance is plagued by recalcitrant syndromes. Theorists of catastrophic and existential risk view space colonization as necessary to escape a long list of possible major calamities (including hostile artificial superintelligence and misused genetic engineering for improved humans, called transhumanism). Human survival increasingly depends on competent futurism and social capacities to steer technology with reversals, regulations, and relinquishments, but these are difficult to establish and maintain. Can vital arrangements of restraint survive large-scale space expansion?

A hybrid approach for corona discharge in needle electrode configuration: in a large-scale space

2020 ◽  
Vol 29 (4) ◽  
pp. 045011 ◽  
Author(s):  
Li Chuan ◽  
Liu Zhi ◽  
Wang Pengyu ◽  
Zhang Ming ◽  
Yang Yong ◽  
...  
Keyword(s):  
Corona Discharge ◽  
Large Scale ◽  
Hybrid Approach ◽  
Scale Space ◽  
Electrode Configuration ◽  
Needle Electrode
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