Results 31 to 40 of about 23,619 (166)

Estimation of Cumulative Noise Reduction at Certification Points for Supersonic Civil Aeroplane Using the Programmed Thrust Management at Take-off and Approach

Propulsion - New Perspectives and Applications [Working Title], 2021
The reduction of the cumulative noise level at certification points applying to the supersonic civil aeroplane is estimated in the paper. The reduction is obtained by using an programmed thrust management with Programmed Lapse Rate based on the variation
Mirzoyan Artur, Khaletskii Iurii
semanticscholar   +1 more source

Unmanned Aerial Systems for Corrosion Detection: Multi‐Sensor Technologies, Challenges, and Opportunities for Next‐Generation Inspection

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Corrosion remains a critical threat to the integrity and service life of infrastructure in industries such as oil, gas, construction, renewable energy, and transportation. Traditional inspection methods, being labor‐intensive, hazardous, and often subjective, fall short in addressing modern inspection demands.
Alhossein Alharbi, Yunes Alqudsi, Alhasan Ali Alharbi, Mohammed Basheer Mohiuddin   +3 more
wiley   +1 more source

Reframing the Treasury Debate: Industrial Strategy and State Capacity in the UK

The Political Quarterly, EarlyView.
Abstract The Treasury has long been seen as a root cause of Britain's economic malaise, blocking much‐needed industrial intervention and embedding short‐termism. This article examines the politics of Concorde and civil nuclear power in postwar Britain to show that the Treasury was not the problem in these cases.
Tom Kelsey
wiley   +1 more source

Franco‐British Bilateral Diplomacy After Brexit, 2020–2025: Mending the Ties That Bind

JCMS: Journal of Common Market Studies, EarlyView.
Abstract Brexit shook to its very core one of the European Union's (EU's) prominent partnerships, the Franco‐British bilateral relationship (FBBR), disrupting diplomatic routines and shattering interpersonal trust before circumstances changed and the relationship rapidly began to mend. In this article, we analyse the breakdown and restoration of Franco‐
Helen Drake, Pauline Schnapper
wiley   +1 more source

Jet Noise Prediction Benchmark for Landing and Takeoff Noise of Supersonic Aircraft

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
This paper presents a brief overview of the EU-Project SENECA (LTO noiSe and EmissioNs of supErsoniC Aircraft) aiming to support certification authorities and the International Civil Aviation Organization's Committee on Aviation Environmental Protection (
Robert Jaron, Matti Gräbert, Remco Habing, Mark-Jan van der Meulen, Maxime Huet, I. LeGriffon, F. Petrosino, M. Barbarino, Katharina Lefarth, Oleksandr Zaporozhets   +9 more
semanticscholar   +1 more source

Hybrid‐Electric Aeroengines: Strategic Technical Pathways and Environmental Implications

Advanced Energy and Sustainability Research, Volume 7, Issue 8, August 2026.
Hybrid‐electric propulsion systems represent a transformative frontier in aerospace engineering, critical for achieving sustainable aviation. This review synthesizes recent breakthroughs in hybrid‐energy aero‐engine design, critically evaluating key technological pillars.
Yankun Wang, Mingkui Wang
wiley   +1 more source

Development of a robust solver to model the flow inside the engines for high-speed propulsion [PDF]

MATEC Web of Conferences, 2019
The demand for discovering new commercial routes as well as the possibility to shortening civilian long-haul flights boosted the interest of civil hypersonic vehicle designs.
Nista Ludovico, Saracoglu Bayindir H.
doaj   +1 more source

Rapid Estimation of Supersonic Civil Aircraft Sonic Boom Characteristics in Standard Atmosphere Based on Analytical Solutions. Cruise Flight

Akustičeskij žurnal
A method for rapid estimations of supersonic civil aircraft sonic boom characteristics in standard atmosphere is proposed. The piece-wise linearity of the temperature profile and the absence of atmospheric wind allow to completely reduce the problem on ...
A. O. Korunov, V. Gusev, V. S. Gorbovskoy   +2 more
semanticscholar   +1 more source

Ultrasonic Rainbow: A Meta‐Transducer for Frequency‐Selective Elastic Wave Control via Dithering‐Based Wavenumber Tuning

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
A piezoelectric meta‐transducer generates an ultrasonic rainbow, steering guided elastic waves to different angles according to frequency. A dithering‐based binary electrode design enables a closer realization of the target wavenumber filter, improving directional purity and suppressing unwanted lobes. Numerical and experimental validation demonstrates
Masoud Mohammadgholiha, Jochen Moll, Kilian Tschöke, Carsten Kruska, Sylvia E. Gebhardt, Luca De Marchi   +5 more
wiley   +1 more source

Discrete Adjoint Optimization Method for Low-Boom Aircraft Design Using Equivalent Area Distribution

Aerospace
This paper introduces a low-boom aircraft optimization design method guided by equivalent area distribution, which effectively improves the intuitiveness and refinement of inverse design. A gradient optimization method based on discrete adjoint equations
Chuang Ma, Jiangtao Huang, Daochun Li, Jun Deng, Gang Liu, Lin Zhou, Cheng Chen   +6 more
doaj   +1 more source