Results 71 to 80 of about 1,323,656 (256)

The Feasibility Test of Electric Propulsion Systems: Case Study for a Light and Fixed‐Wing Aircraft

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study investigates the feasibility and performance of a fully electric propulsion system (EPS) integrated into a light fixed‐wing aircraft. The system consists of a 65 kW‐class electric motor, a high‐efficiency inverter, and dual lithium‐ion battery packs with a total capacity of 27 kWh—collectively engineered to fulfill both power ...
Byeong Gyu Gang
wiley   +1 more source

Effect of Microchannel Geometry on Nanoparticle Deposition in Nanofluid Flow

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This study numerically analyzed nanoparticle deposition in microchannels with varying geometries. Deposition per unit area decreases significantly with increasing bend angle (28.612 to 8.941 between 30° and 120°) and bend radius (11.922 to 4.769 between 0.2 and 0.4 mm). Acute bends and small radii enhance centrifugal forces and flow separation, leading
Meng Wang   +3 more
wiley   +1 more source

Aircraft Noise Monitoring in Function of Flight Safety and Aircraft Model Determination

open access: yesJournal of Advanced Transportation, 2017
This paper presents the research of noise level monitoring at the Zagreb Airport Ltd. The purpose of this paper is to show how the aircraft noise sources can be used as a tool for aircraft detection and for increasing flight safety. The noise measurement
Andrija Vidović   +2 more
doaj   +1 more source

How emerging market firms learn to lead in complex product systems: Evidence from China's civil aircraft industry

open access: yesGlobal Strategy Journal, EarlyView.
Abstract Research Summary The rise of emerging market lead firms (LFs) in global value chains (GVCs) challenges the prevailing view that only multinational corporations (MNCs) from advanced economies lead systems integration, design, and innovation activities.
Yuanyuan Wu, Paola Perez‐Aleman
wiley   +1 more source

Programmable solar‐blind ultraviolet sensors enabling integrated single‐pixel sensing and neuromorphic processing

open access: yesInfoMat, EarlyView.
A Schottky photodiode based on (Al0.14Ga0.86)2O3 was developed, in which the sensing and processing functions were temporally decoupled through bias voltage modulation. By integrating single‐pixel imaging with a reservoir computing architecture, a comprehensive intelligent vision system was constructed.
Hongbin Wang   +10 more
wiley   +1 more source

Knowledge Integration in Professional Practices: Towards a New Transacting Approach

open access: yesKnowledge and Process Management, EarlyView.
ABSTRACT This paper advances understanding of knowledge integration across professional boundaries by examining how professionals coordinate action in two life‐ and time‐critical settings: aircraft maintenance and emergency healthcare. Building on established knowledge integration perspectives, the study investigates situations in which actors must ...
Ann Svensson, Ritva Rosenbäck
wiley   +1 more source

A Two‐Stage Optimization Approach for Selecting Electric‐Flight Airports

open access: yesNetworks, EarlyView.
ABSTRACT The decarbonization of short‐haul air transport has gained increasing attention, with electric aircraft emerging as a promising alternative to conventional short‐haul aviation. However, given the substantial investment anticipated for the necessary infrastructure, a strategic and globally coordinated selection of airports is imperative.
Imke Joormann   +2 more
wiley   +1 more source

Digital surveillance of animals and nature recovery

open access: yesPeople and Nature, EarlyView.
Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley   +1 more source

Aircraft noise and self-assessed mental health around a regional urban airport: a population based record linkage study

open access: yesEnvironmental Health, 2018
Background Limited evidence suggests that residential exposure to aircraft noise negatively influences population mental health around large airports, but it is not known whether the same is true for smaller airports.
David M. Wright   +3 more
doaj   +1 more source

Scaling turbulence drives the general circulation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

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