Results 71 to 80 of about 44,118 (256)
‘Reinventing’ the Beach? Lessons from a Local Development Plan in the French Riviera
The Political Quarterly, EarlyView.Abstract Coastal squeeze is now so tangible both globally and locally that the focus of scientific debate has expanded from the erosion of beaches to the risk of their disappearance. In this context, it is crucial to explore local development plans that aim to preserve the long‐term existence of a beach.
Isabelle Bruno, Grégory Salle
wiley +1 more source
The installation of a common rail diesel engine on a light helicopter of the eurocopter EC120 class
Ingeniería e Investigación, 2016 A feasibility study for the installation of a CRDID (Common Rail Direct Injection Diesel) on a light helicopter is introduced. The total mass available for the CRDID is evaluated starting from fuel consumption and helicopter data.
Leonardo Frizziero, Luca Piancastelli
doaj +1 more source
Engine/airframe interface dynamics experience [PDF]
Problems of engine/drive system torsional stability, engine and output shaft critical speeds, and engine vibration at helicopter rotor order frequencies are discussed, and test data and analyses presented.
Fredrickson, C.
core +1 more source
Ultra-heavy vertical lift system: The Heli-Stat [PDF]
, 1975 A hybrid VTOL airship which is combined with helicopters is evaluated. The static lift of the airship supports approximately the full empty weight of the entire assembly.
Piasecki, F. N.
core +1 more source
Rotorcraft contingency power study [PDF]
Twin helicopter engines are often sized by the power requirement of a safe mission completion after the failure of one of the two engines. This study was undertaken for NASA Lewis by General Electric Co.
Davis, R. H. +3 more
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Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Neural Network System for Predicting Anomalous Data in Applied Sensor Systems
Applied System InnovationThis article advances the research on the intelligent monitoring and control of helicopter turboshaft engines in onboard conditions. The proposed neural network system for anomaly prediction functions as a module within the helicopter turboshaft engine ...
Serhii Vladov +5 more
doaj +1 more source
LAWS OF MULTIPHASE FLOW BEHAVIOR IN THE HELICOPTER GAS TURBINE ENGINE INLET DUCT
Авіаційно-космічна техніка та технологія, 2017 The results of finite element modeling of the airflow contains dust particles of various sizes in the helicopter gas turbine engine air inlet duck with mounted and dismounted dust protective device are given.
Я. В. Двирник +1 more
doaj +1 more source
Materials and structural aspects of advanced gas-turbine helicopter engines [PDF]
The key to improved helicopter gas turbine engine performance lies in the development of advanced materials and advanced structural and design concepts. The modification of the low temperature components of helicopter engines (such as the inlet particle ...
Acurio, J., Freche, J. C.
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Choice Feminism and the Opt‐Out Phenomenon: Is It Possible to Speak of Free Will?
Gender, Work &Organization, EarlyView.ABSTRACT The aim of this research was to question choice feminism in the light of the opt‐out phenomenon, through a thematic narrative analysis of the professional trajectories of five Brazilian women with university degrees. As a result of the research—and the main contribution to the advancement of knowledge in the field—it was found that although ...
Paula Furtado Hartmann de Queiroz Monteiro +3 more
wiley +1 more source