Results 111 to 120 of about 418,460 (316)

Airworthiness study on civil aircraft engine operating characteristics

open access: yesHangkong gongcheng jinzhan
Engine operating characteristics of civil aircraft engines are one of the most basic and complex verification subjects in the airworthiness certification process of the Part 25 "airworthiness standard for transport aircraft" of China civil aviation ...
DENG Tianze   +4 more
doaj   +1 more source

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski   +4 more
wiley   +1 more source

Study the fault-tolerant design of flight control system based on distributed systems architecture

open access: yesHangkong gongcheng jinzhan
The traditional centralized flight control system architecture is independent of other systems such as electromechanical and mission systems,making it difficult to meet the requirements of modern fighter system comprehensive design.
YANG Zhaoxu   +3 more
doaj   +1 more source

An economic model for evaluating high-speed aircraft designs [PDF]

open access: yes
A Class 1 method for determining whether further development of a new aircraft design is desirable from all viewpoints is presented. For the manufacturer the model gives an estimate of the total cost of research and development from the preliminary ...
Vandervelden, Alexander J. M.
core   +1 more source

Simulating competition in the US bioeconomy to produce hard‐to‐electrify transportation fuels using limited biomass resources

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study presents a novel bioeconomy optimization framework, BiOpt, designed to address critical questions regarding the strategic use of limited US biomass resources for biofuel production. By integrating detailed techno‐economic analyses, life cycle assessments, and resource assessment data, BiOpt optimizes resource distributions across ...
Nicholas A. Carlson   +3 more
wiley   +1 more source

Comparison of Structural Concepts for Transport Aircraft with a Tail Cone Turbine [PDF]

open access: yes
An evaluation of three structural concepts for an advanced aircraft design with a tail cone turbine is presented. Structural models were developed using an innovative rapid finite element modeling tool called Conceptual Design Shop (CDS).
Mason, Brian H.
core   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

LN-SCNet: A Lightweight Convolutional Neural Network for SAR Ship Classification

open access: yesIEEE Access
Ship classification is a critical challenge in the domain of synthetic aperture radar (SAR) automatic target recognition, primarily due to the large number of pixels occupied by ships in high-resolution SAR images. This results in substantial input sizes,
Shuang Zhao   +3 more
doaj   +1 more source

A fuselage/tank structure study for actively cooled hypersonic cruise vehicles, summary [PDF]

open access: yes
A detailed analytical study was made to investigate the effects of fuselage cross section (circular and elliptical) and the structural arrangement (integral and nonintegral tanks) on aircraft performance.
Baker, A. H.   +2 more
core   +1 more source

Connecting Industry 4.0, Servitisation and Sustainability: Territorial Implications for Global Value Chains

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Globalisation has deepened the integration of international production within global value chains (GVCs), where the various stages of the manufacturing process are dispersed across countries. In today's volatile business environment, characterised by rapid technological advances (Industry 4.0) and evolving consumer preferences towards use ...
Javier Bilbao‐Ubillos   +3 more
wiley   +1 more source

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