Space Shuttle 2 advanced space transportation system, volume 2 [PDF]
To determine the best configuration from all candidate configurations, it was necessary first to calculate minimum system weights and performance. To optimize the design, it is necessary to vary configuration-specific variables such as total system ...
Adinaro, James N. +3 more
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Universality of Univariate Mixed Fractions in Divisive Meadows [PDF]
, 2017 Univariate fractions can be transformed to mixed fractions in the equational theory of meadows of characteristic zero.Comment: 12 ...
Bergstra, Jan A. +2 more
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Autonomous take-off and landing of a tethered aircraft: a simulation study
, 2015 The problem of autonomous launch and landing of a tethered rigid aircraft for airborne wind energy generation is addressed. The system operates with ground-based power conversion and pumping cycles, where the tether is repeatedly reeled in and out of a ...
Fagiano, Lorenzo +2 more
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Light bulb heat exchanger for magnetohydrodynamic generator applications - Preliminary evaluation [PDF]
The light-bulb heat-exchanger concept is investigated as a possible means of using a combustion heat source to supply energy to an inert gas MHD power generator system.
Hwang, C. C. +2 more
core +1 more source
Atmospheric turbulence parameters for modeling wind turbine dynamics [PDF]
A model which can be used to predict the response of wind turbines to atmospheric turbulence is given. The model was developed using linearized aerodynamics for a three-bladed rotor and accounts for three turbulent velocity components as well as velocity
Holley, W. E., Thresher, R. W.
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Early Child Development and Maternal Labor Force Participation: Using Handedness as an Instrument [PDF]
We estimate the effect of early child development on maternal labor force participation using data from teacher assessments. Mothers might react to having a poorly developing child by dropping out of the formal labor force in order to spend more time ...
Frijters, Paul +3 more
core
Conceptual design optimization study [PDF]
The feasibility of applying multilevel functional decomposition and optimization techniques to conceptual design of advanced fighter aircraft was investigated.
Beeman, E. R., II +2 more
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Microgravity vibration isolation: An optimal control law for the one-dimensional case [PDF]
Certain experiments contemplated for space platforms must be isolated from the accelerations of the platforms. An optimal active control is developed for microgravity vibration isolation, using constant state feedback gains (identical to those obtained ...
Allaire, P. E. +4 more
core +2 more sources
The Relationship between the Frequency and Duration of Physical Activity and Depression in Older Adults with Multiple Chronic Diseases. [PDF]
J Clin Med, 2022 Lee JM, Ryan EJ.
europepmc +1 more source
Control of One-Handed Helicity in Polyacetylenes: Impact of an Extremely Small Amount of Chiral Substituents. [PDF]
J Am Chem Soc, 2023 Ikai T +11 more
europepmc +1 more source