Results 101 to 110 of about 368,794 (339)

Complex Structure of Dynamic Stall on Wind Turbine Airfoils [PDF]

open access: yes, 2013
Fluid dynamics video demonstrating the evolution of dynamic stall on a wind turbine blade.Comment: 2 pages with 2 attached ...
Babbitt, Ashli   +6 more
core  

Staging an Experience of Cultural Heritage Preservation: Consumers' Willingness to Pay for Heirloom Rice in the Philippines

open access: yesAgribusiness, EarlyView.
ABSTRACT The Cordillera Administrative Region in the Philippines is home to terraced rice embedded in centuries of cultural heritage. However, weak market incentives threaten sustained production, jeopardizing indigenous communities' cultural heritage and the in situ biodiversity of rice genetic resources.
Kofi Britwum, Matty Demont
wiley   +1 more source

Stalled and stall-free performance of axial-flow compressor stage with three inlet-guide-vane and stator-blade settings [PDF]

open access: yes
The performance of the first stage of a transonic, multistage compressor was mapped over a range of inlet-guide-vane and stator-blade settings. Both stall-free and deep-stall performance data were obtained.
Cunnan, W. S.   +2 more
core   +1 more source

Effective charge and free energy of DNA inside an ion channel

open access: yes, 2008
Translocation of a single stranded DNA (ssDNA) through an alpha-hemolysin channel in a lipid membrane driven by applied transmembrane voltage V was extensively studied recently. While the bare charge of the ssDNA piece inside the channel is approximately
B. I. Shklovskii   +2 more
core   +1 more source

Translational stalling at polyproline stretches is modulated by the sequence context upstream of the stall site

open access: yesNucleic Acids Research, 2014
The polymerization of amino acids into proteins occurs on ribosomes, with the rate influenced by the amino acids being polymerized. The imino acid proline is a poor donor and acceptor for peptide-bond formation, such that translational stalling occurs ...
A. Starosta   +8 more
semanticscholar   +1 more source

Food Tastes in the United States: Convergence or Divergence?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study investigates how food consumption tastes have changed in recent decades across the United States. Using NielsenIQ data for over 77 million transactions, there is evidence of divergence in food tastes across regions from 2007 to 2016 and across households of different income, education, and race/ethnicity groups.
Michael DeDad
wiley   +1 more source

Observations of the Growth and Decay of Stall Cells during Stall and Surge in an Axial Compressor

open access: yesInternational Journal of Rotating Machinery, 2017
This research investigated unsteady events such as stall inception, stall-cell development, and surge. Stall is characterized by a decrease in overall pressure rise and nonaxisymmetric throughflow.
Adam R. Hickman, Scott C. Morris
doaj   +1 more source

Vendor Types, Attendance, Experience and Sales 2019–2021: Evidence From Five Rural Oregon Farmers Markets

open access: yesAgribusiness, EarlyView.
ABSTRACT Farmers markets provide a direct‐to‐consumer marketing path for farmers and small businesses, facilitating customer discovery and product refinement. This paper explores farmers markets as a business incubator, with a focus on beginning vendors and resilience to a shock, namely, COVID‐19 market restrictions.
Mallory L. Rahe   +2 more
wiley   +1 more source

Precision Deep-Stall Landing of Fixed-Wing UAVs Using Nonlinear Model Predictive Control

open access: yesJournal of Intelligent and Robotic Systems, 2020
Siri Mathisen   +3 more
semanticscholar   +1 more source

A theory of post-stall transients in multistage axial compression systems [PDF]

open access: yes
A theory is presented for post stall transients in multistage axial compressors. The theory leads to a set of coupled first-order ordinary differential equations capable of describing the growth and possible decay of a rotating-stall cell during a ...
Greitzer, E. M., Moore, F. K.
core   +1 more source

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