Results 21 to 30 of about 273,928 (312)

Airborne Separation Assurance Systems: towards a work programme to prove safety [PDF]

open access: yes, 2004
With Full Delegation Airborne Separation Assurance System (ASAS), separation control would be delegated to the (properly equipped) aircraft, i.e. aircraft pilots are responsible for aircraft separation.
Peter Brooker, Brooker, Peter
core   +1 more source

Forward and Inverse Analysis of Chemical Transport Models [PDF]

open access: yes, 2007
Assessing the discrepancy between modeled and observed distributions of aerosols is a persistent problem on many scales. Tools for analyzing the evolution of aerosol size distributions using the adjoint method are presented in idealized box model ...
Henze, Daven Ker
core   +1 more source

Transient modelling and simulation of gas turbine secondary air system [PDF]

open access: yesApplied Thermal Engineering, 2020
Abstract The behaviour of the jet engine during transient operation and specifically its secondary air system (SAS) is the point of this work. This paper presents a methodological approach to develop a fast, one-dimensional transient platform for preliminary analysis of the flow behaviour in gas turbine engines secondary air system. For this purpose,
Nikolaidis, Theoklis   +2 more
openaire   +3 more sources

Deciphering the role of anions and secondary coordination sphere in tuning anisotropy in Dy(III) air-stable D5h SIMs

open access: yes, 2021
Precise control of the crystal field and symmetry around the paramagnetic spin centre has recently facilitated the engineering of high-temperature single-ion magnets (SIMs), the smallest possible units for future spin-based devices.
Sandeep , Gupta   +4 more
core   +1 more source

Changes in vital signs, ventilation mode, and catecholamine use during intensive care aeromedical evacuation flights

open access: yesFrontiers in Public Health, 2023
IntroductionEspecially after (natural) disasters, local health systems are also destroyed or their ability to work is massively restricted. The transport of injured patients is therefore often necessary for further care.
Janina Post   +4 more
doaj   +1 more source

Association between climate fluctuations and dengue fever outbreaks in Surakarta (2023–2024) [PDF]

open access: yesE3S Web of Conferences
Dengue fever is a persistent public health challenge in tropical regions, where climate variability influences vector dynamics and transmission. This study investigates the association between climate fluctuations and dengue outbreaks in Surakarta during
Nurhayatun Evi, Ulfia Mila
doaj   +1 more source

The Effect of the Purge–Mainstream Density Ratio on Rim Seal Fluid Mechanics

open access: yesInternational Journal of Turbomachinery, Propulsion and Power
Significant density ratios arise in a gas turbine due to severe temperature gradients between the hot mainstream gases leaving the combustor and the superposed purge flow injected from the secondary air system. Engineers seek to minimise the ingestion of
Jason S. Boldero   +5 more
doaj   +1 more source

Divalent Nonaqueous Metal-Air Batteries

open access: yesFrontiers in Energy Research, 2021
In the field of secondary batteries, the growing diversity of possible applications for energy storage has led to the investigation of numerous alternative systems to the state-of-the-art lithium-ion battery.
Yi-Ting Lu   +4 more
doaj   +1 more source

RSM-Based Performance Optimization of Coal-Fired CFB Boilers for Energy Efficiency [PDF]

open access: yesE3S Web of Conferences
This study experimentally and numerically investigates the environmental and energy performance optimization of a 150 MW coal-fired circulating fluidized bed (CFB) boiler using Response Surface Methodology–Central Composite Design (RSM-CCD) in accordance
del Rosario Renz Lui, Honra Jaime
doaj   +1 more source

Systems and certification issues for civil transport aircraft flow control systems [PDF]

open access: yes, 2009
This article is placed here with permission from the Royal Aeronautical Society - Copyright @ 2009 Royal Aeronautical SocietyThe use of flow control (FC) technology on civil transport aircraft is seen as a potential means of providing a step change in ...
Crowther, W. J.; id_orcid   +5 more
core   +1 more source

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