Results 101 to 110 of about 31,063 (340)

Modeling the effect of wind speed and direction shear on utility‐scale wind turbine power production

open access: yesWind Energy
Wind speed and direction variations across the rotor affect power production. As utility‐scale turbines extend higher into the atmospheric boundary layer (ABL) with larger rotor diameters and hub heights, they increasingly encounter more complex wind ...
Storm A. Mata   +7 more
doaj   +1 more source

Reducing Contamination in Forensic Science [PDF]

open access: yes, 2015
The sensitivity of modern forensic techniques has drastically increased, with sensitive technology detecting even the smallest traces of DNA evidence left behind. This has made it possible to detect DNA profiles deposited through contamination.
Balk, Carly
core   +1 more source

Multiscale Hybrid Surface Topographies Orchestrate Immune Regulation, Antibacterial Defense, and Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Hybrid wrinkled topographies coordinate immune, tissue, and bacterial interactions. The surfaces promote osteointegration, tune macrophage polarization, and inhibit biofilm formation, highlighting a multifunctional strategy for next‐generation implant design.
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

CFD Investigation on the Application of Optimum Non-Axisymmetric Endwall Profiling for a Vaned Diffuse

open access: yesJournal of Applied Fluid Mechanics, 2018
In order to improve the performance of a transonic centrifugal compressor stage, non-axisymmetric endwall profiling optimization was conducted for the diffuser under design condition, Artificial Neural Network (ANN) and Genetic Algorithm (GA) were used ...
L. Zhou, F. Xiang, Z. Wang
doaj  

Profile and contour grinding of compressor blade butts

open access: yesScience intensive technologies in mechanical engineering, 2016
The existing technologies of production of compressor blade butts related with traditional machining methods, including broaching and milling. Application of these machining methods requires further superfinishing operations to ensure the required quality of compressor blades.
E. Tsvetkov, V. Poletaev
openaire   +2 more sources

Analytical and experimental investigation of stator endwall contouring in a small axial-flow turbine. 1: Stator performance [PDF]

open access: yes
Three stator configurations were studied to determine the effect of stator outer endwall contouring on stator performance. One configuration was a cylindrical stator design.
Haas, J. E.
core   +1 more source

Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen

open access: yesAdvanced Healthcare Materials, EarlyView.
Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier   +2 more
wiley   +1 more source

Design and Experiment of an Inter-Row Weeding Machine Applied in Soybean and Corn Strip Compound Planting (SCSCP)

open access: yesAgronomy
To address the lack of specialized machinery for the mechanical weeding of SCSCP in the Huang Huai Hai region, this study designs a mechanized inter-row weeding machine for SCSCP.
Zihao Tang   +5 more
doaj   +1 more source

A Parametric Method of Turbine Blade Profile Design [PDF]

open access: yesVolume 1B: General, 1974
The profile shape of an axial turbine blade is required to satisfy both aerodynamic and mechanical criteria; the designer wants the most favorable velocity distribution achievable with the permissible blade thickness. The design involves some trial-and-error, especially if the profile is initially prescribed by solely aerodynamic or solely mechanical ...
openaire   +1 more source

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