منابع مشابه
The evolution of helicopters
Here, we show that during their half-century history, helicopters have been evolving into geometrically similar architectures with surprisingly sharp correlations between dimensions, performance , and body size. For example, proportionalities emerge between body size, engine size, and the fuel load. Furthermore, the engine efficiency increases with the engine size, and the propeller radius is r...
متن کاملSymbol Grounding Revisited 1 the Origin of Symbol Grounding 1.1 Overview 1.2 the Symbol Grounding Problem
Symbol Grounding has originated in the domain of cognitive connectionism as an approach to a model of language acquisition.It has, however, transcended this restricted domain and its most prominent proponents now regard it as a technique which is of general importance to the connectionist-symbolic debate, especially for their integration into a common framework. This paper revisits the claims m...
متن کاملAnticipatory routing of police helicopters
We have developed a decision support application for the Dutch Aviation Police and Air Support unit for routing their helicopters in anticipation of unknown future incidents. These incidents are not known in advance, yet do require a swift response. A response might include the dispatch of a police helicopter to support the police on the ground. If a helicopter takes too long to arrive at the c...
متن کاملA tale of two helicopters
This paper discusses similarities and differences in autonomous helicopters developed at USC and CSIRO. The most significant differences are in the accuracy and sample rate of the sensor systems used for control. The USC vehicle, like a number of others, makes use of a sensor suite that costs an order of magnitude more than the vehicle. The CSIRO system, by contrast, utilizes low-cost inertial,...
متن کاملThe Cost of Noise Reduction in Helicopters
The relationship between noise reduction and direct operating cost was studied for transport helicopters. A large number of helicopter preliminary designs was generated with the help of a computer program. Vehicles were selected to meet certain noise goals with minimum direct operating cast. this was repeated for several payloads and technology time frames. The effect of changes in the assumed ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geoderma
سال: 2020
ISSN: 0016-7061
DOI: 10.1016/j.geoderma.2020.114302