Results 91 to 100 of about 660,831 (348)

An experimental investigation of S-duct flow control using arrays of low-profile vortex generators [PDF]

An experimental investigation was undertaken to measure the effect of various configurations of low-profile vortex generator arrays on the flow in a diffusing S-duct.
Reichert, Bruce A., Wendt, Bruce J.
core   +1 more source

Effect of wind turbine generator model and siting on wind power changes out of large WECS arrays [PDF]

, 1981
Methods of reducing the WECS generation change through selection of the wind turbine model for each site, selection of an appropriate siting configuration, and wind array controls are discussed. An analysis of wind generation change from an echelon and a
Dorsey, J., Lotfalian, M., Park, G. L., Schleuter, R. A., Shayanfar, H.   +4 more
core   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Novel coprime MIMO configurations for DOA estimation with increased degrees of freedom

Franklin Open
In this work, we propose some coprime multiple input multiple output (MIMO) configurations for direction-of-arrival (DOA) estimation, which achieve more degrees of freedom (DOF) than all the existing coprime MIMO configurations. We know that in a coprime
Rajen Kumar Patra, Anindya Sundar Dhar
doaj   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

The Galactic Sky seen by H.E.S.S

, 2011
The H.E.S.S. experiment is an array of four imaging Cherenkov telescopes located in the Khomas Highlands of Namibia. It has been operating in its full configuration since December 2003 and detects very-high-energy (VHE) gamma rays ranging from 100 GeV to
Abdo, Abdo, Abdo, Abramowski, Acero, Acero, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Aharonian, Albert, Atoyan, Baade, Bamba, Bednarek, Berezhko, Berezhko, Berezhko, Bykov, Casares, Cerutti, Claussen, de Naurois, Drury, Dubois, Dubus, Dubus, Dwarkadas, Eichler, Ellison, Ellison, Fiasson, Gabici, Gabici, Gotthelf, Green, Groh, Hartman, Helder, Higdon, Hillas, Hinton, Katsuda, Klepach, Malkov, Manchester, Maraschi, Mathieu de Naurois, Morlino, Naumann-Godó, Ohm, Parizot, Rothenflug, Schaefer, Uchiyama, Voelk, Völk, Weekes   +74 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

A Cavity-Backed Shorted Annular Patch (SAP) Array for Mid-Range V-Band Backhauling Applications

IEEE Access, 2019
This paper presents a new improved gain array configuration well suited for mid-range V-band backhauling applications. The proposed solution is based on a cavity-backed shorted annular patch (SAP) antenna loaded with a parasitic patch element for gain ...
Emilio Arnieri, Giandomenico Amendola, Luigi Boccia   +2 more
doaj   +1 more source

Ku-band high gain antenna [PDF]

An exposed four element array of 12.8 m diameter elements mounted on a common pedestal is the recommended ground antenna configuration in support of the 2 GHz bandwidth Ku-band downlink from tdr satellites.
Deerkoski, L. F.
core   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source