Results 131 to 140 of about 28,185 (297)

Low speed propellers: Impact of advanced technologies [PDF]

open access: yes, 1980
Sensitivity studies performed to evaluate the potential of several advanced technological elements on propeller performance, noise, weight, and cost for general aviation aircraft are discussed.
Keiter, I. D.
core   +1 more source

Using Fine Sediment Monitoring to Quantify Sand Loading Over Time

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Riverine sand loading can lead to geomorphic change, impacting river processes like lateral migration and vertical aggradation or degradation. Yet many sediment monitoring programs track only fine sediment measurable as total suspended solids (TSS). Here, we assess the ability for TSS data to be used to determine sand loading.
Andrew P. Kasun, Karen B. Gran
wiley   +1 more source

A performance comparison of several superscalar processsor [sic] models with a VLIW processor [PDF]

open access: yes, 1992
Superscalar and VLIW processors can both execute multiple instructions each cycle. Each employs a different instruction scheduling method to achieve multiple instruction execution.
Bagherzadeh, Nader, Lenell, John
core  

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada   +4 more
wiley   +1 more source

The fabrication and test of a dual spin gas bearing reaction wheel [PDF]

open access: yes
The design and fabrication of a dual spin gas bearing reaction wheel are discussed. Numerical analyses, data, and conclusions from performance tests are reported.
Opper, R. L., Owen, W. J.
core   +1 more source

An Investigation of the Mechanisms of Stall Margin Improvement in Casing Treatment with Bridge Structure [PDF]

open access: yesProceedings of the 2016 International Conference on Artificial Intelligence and Engineering Applications, 2016
Le Han, Wei Yuan, Shuchao Huang
openaire   +1 more source

The Epistemic Generativity of Using a Model of a Big Idea

open access: yesScience Education, EarlyView.
ABSTRACT Science instruction should involve learners in generating and warranting ideas, what we call epistemic generation. In modeling instruction, epistemic generation should be achieved by coordinating a model structure with the experienced world in reciprocal directions denoted as developing models and using models. In the former, a model structure
Jonathan T. Shemwell, Daniel K. Capps
wiley   +1 more source

Propulsion system-flight control integration and optimization: Flight evaluation and technology transition [PDF]

open access: yes
Integration of propulsion and flight control systems and their optimization offers significant performance improvements. Research programs were conducted which have developed new propulsion and flight control integration concepts, implemented designs on ...
Burcham, Frank W., Jr.   +2 more
core   +1 more source

A Method for Assessing the Risks to Sustainability Posed by Process Operations

open access: yesSustainable Development, EarlyView.
ABSTRACT We present a framework for assessing the risks to sustainability posed by any given set of processes. The objective is to improve sustainability by enabling better decision‐making in policy and business contexts. The framework can be applied to any system of processes where available information supports discovery and quantification of ...
Richard C. Darton, Colin J. Axon
wiley   +1 more source

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