Results 71 to 80 of about 847,370 (336)
A Systems Engineering Methodology for System of Autonomous Systems: Architecture and Integration
Systems Engineering, EarlyView.ABSTRACT Artificial intelligence and machine learning (AI/ML) rapidly transform systems by providing autonomous capabilities. This new class of systems can become a constituent system in a system of systems (SoS) to evolve it into a system of autonomous systems (SoAS).
Mohammadreza Torkjazi, Ali K. Raz
wiley +1 more source
Electro-jet engine: a jet engine without turbine - Part 2. Electric power generation [PDF]
INCAS BulletinThis part studies theoretically and experimentally the conversion of thermal energy directly into electrical energy. The experimental part was based on the recovery of a part of the heat lost to the cold source, i.e.
Sorin NUTU
doaj +1 more source
CIVIL ACADEMIC EDUCATION OF HELICOPTER ENGINEERING IN POLAND
Aviation, 2004 Requirements of industry, research centres, and users necessitate the teaching of helicopter engineering at various levels and specialities, both in the civil and military sectors in Poland. Civil academic education of helicopter engineering has been offered for many years at the Faculty of Power and Aeronautical Engineering (FPAE) of Warsaw University
openaire +4 more sources
Wildlife Biology, EarlyView.Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley +1 more source
Comparison Between Helicopter and Cable Crane in Logging Operation
Chemical Engineering Transactions, 2017 In Italy, differently from others European Countries (Switzerland) where the use of helicopters is more diffuse, log transportation in slop land is generally performed by cable crane although its use is generally difficult and high time consuming for ...
M. Manzone, P. Balsari
doaj +1 more source
Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements [PDF]
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certification requirements.
Groesbeck, D. E., Vonglahn, U.
core +1 more source
Living under the scope: behavior affects survival in a heavily harvested and long‐lived ungulate
Wildlife Biology, EarlyView.The spatiotemporal behavior of game species may play a critical role in their survival throughout the hunting season. Where humans are the most dominant predators, avoidance of landscape features that allow hunter access to hunting grounds can be key to increasing survival.
Lukas Graf +4 more
wiley +1 more source
Results of the noise measurement program on a standard and modified OH-6A helicopter [PDF]
A field noise measurement program has been conducted on a standard OH-6A helicopter and one that had been modified by reducing the rotor speed, altering rotor tip shape, and treating the engine exhaust and inlet to reduce the external noise levels.
Henderson, H. R. +2 more
core +1 more source
Wildlife Biology, EarlyView.Increasing ecological perturbations resulting from global change processes are altering the environmental predictability (EP) of critical forage and water resources for wildlife. While research has furthered our understanding of how EP both underlies and directs animal movement, studies have mainly focused on relationships between EP and large‐scale ...
Madeline P. Standen +4 more
wiley +1 more source
Numerical optimization of helicopter rotor blade design for active twist control
Aviation, 2007 The vibration of a helicopter has several different sources, such as the rotor, engine and transmission system. This creates a number of problems with performance, for example poor manoeuvrability, discomfort of the pilot, low fatigue life of the ...
Andrejs Kovalovs +2 more
doaj +1 more source