Results 91 to 100 of about 1,426,014 (374)

Quasi-Static Crushing Simulation Research and Failure Mode Analysis of Composite Thin-Walled C-Channel Specimen

open access: yesJournal of Aeronautical Materials, 2017
To study the crushing energy-absorbing characteristics and failure mode, the multi-shells finite element model of composite thin-walled C-channel specimen was established based on the quasi-static crushing test results.
XIE Jiang   +4 more
doaj   +1 more source

Civil applications of high-speed rotorcraft and powered-lift aircraft configurations [PDF]

open access: yes
Advanced subsonic vertical and short takeoff and landing (V/STOL) aircraft configurations offer new transportation options for civil applications.
Albers, James A., Zuk, John
core   +1 more source

Carbon Performance in Airlines: A Qualitative Comparative Analysis of Institutional and Firm‐Level Drivers

open access: yesSustainable Development, EarlyView.
ABSTRACT Air transport is one of the fastest‐growing sources of greenhouse gas emissions, yet it remains one of the most difficult sectors to decarbonize. The sector's climate impact is amplified by two factors: the steady rise in passenger demand and the absence of commercially viable low‐carbon technologies for long‐haul flights.
Jouni K. Juntunen   +2 more
wiley   +1 more source

Evolution of Civil Aircraft Industry Development

open access: yesMGIMO Review of International Relations, 2017
Civil aircraft industry market is а complex multistage system of manufacturers and consumers, which affects countries all over the world. The globalization and world economic growth caused inevitable merger of national markets into one system where the key role belongs to few corporations.
openaire   +3 more sources

Infrared-Based Autonomous Navigation for Civil Aircraft Precision Approach and Landing

open access: yesIEEE Access, 2019
Precise navigation is a fundamental problem of aircraft safety approach and landing. However, the existing methods, including rotorcraft-based and fixed-wing-based, cannot meet the requirements of precision approach and landing of civil aircraft in the ...
Lei Zhang   +3 more
semanticscholar   +1 more source

Impact and promise of NASA aeropropulsion technology [PDF]

open access: yes
The aeropropulsion industry in the U.S. has established an enviable record of leading the world in aeropropulsion for commercial and military aircraft.
Bowditch, David N., Saunders, Neal T.
core   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani   +2 more
wiley   +1 more source

Combined conceptual and preliminary aerodynamic design of a low-boom Supersonic Civil Transport aircraft for holistic evaluation of its environmental impact

open access: green, 2021
Gérald Carrier   +6 more
openalex   +2 more sources

Supersonic Technology Concept Aeroplanes for Environmental Studies [PDF]

open access: yes
The International Civil Aviation Organization is considering new environmental standards for future supersonic civil aircraft. NASA is supporting this effort by analyzing several notional, near-term supersonic transports.
Berton, Jeffrey J.   +3 more
core   +1 more source

Addressing Complexity in System of Systems With GraphRAG: An AI‐Driven Framework for Dynamic Data Integration

open access: yesSystems Engineering, EarlyView.
ABSTRACT System of Systems (SoS) environments are inherently complex, involving numerous operationally and managerially independent component systems with hidden interdependencies and frequent interactions based on unstructured data. In this paper, we propose using graphical Retrieval‐Augmented Generation (GraphRAG), a tool that combines large language
Yinchien Huang   +2 more
wiley   +1 more source

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