Results 21 to 30 of about 98,133 (220)

Optical Gravitational Wave Antenna with Increased Power Handling Capability [PDF]

open access: yes, 2015
Fundamental sensitivity of an optical interferometric gravitational wave detector increases with increase of the optical power which, in turn, limited because of the opto-mechanical parametric instabilities of the interferometer.
Matsko, Andrey B.   +3 more
core   +2 more sources

Understanding roof deformation mechanics and parametric sensitivities of coal mine entries using the discrete element method

open access: yesInternational Journal of Mining Science and Technology, 2020
Although conventional coal mine designs are conservative regarding pillar strength, local failures such as roof-falls and pillar bursts still affect mine safety and operations.
Rami Abousleiman   +2 more
doaj   +1 more source

A novel PID controller for pressure control of artificial ventilator using optimal rule based fuzzy inference system with RCTO algorithm

open access: yesScientific Reports, 2023
In order to improve the pressure tracking response of an artificial ventilator system, a novel proportional integral derivative (PID) controller is designed in the present work by utilizing an optimal rule-based fuzzy inference system (FIS) with a ...
Debasis Acharya, Dushmanta Kumar Das
doaj   +1 more source

Efficient design optimization of complex electromagnetic systems using parametric macromodeling techniques [PDF]

open access: yes, 2011
We propose a new parametric macromodeling technique for complex electromagnetic systems described by scattering parameters, which are parameterized by multiple design variables such as layout or substrate feature.
Antonini, Giulio   +4 more
core   +2 more sources

Crone control of a nonlinear hydraulic actuator [PDF]

open access: yes, 2002
The CRONE control (fractional robust control) of a hydraulic actuator whose dynamic model is nonlinear is presented. An input-output linearization under diffeomorphism and feedback is first achieved for the nominal plant.
Lanusse, Patrick   +3 more
core   +2 more sources

On the local stability of semidefinite relaxations

open access: yes, 2020
We consider a parametric family of quadratically constrained quadratic programs (QCQP) and their associated semidefinite programming (SDP) relaxations. Given a nominal value of the parameter at which the SDP relaxation is exact, we study conditions (and ...
Agarwal, Sameer   +3 more
core   +1 more source

RESEARCH ON PARAMETRIC ANALYSIS AND MULTI-OBJECTIVE OPTIMIZATION OF CYLINDRICAL PRESSURE STRUCTURE

open access: yesJixie qiangdu, 2021
In order to improve the design efficiency and performance of the cylindrical pressure structure,strength and stability analysis methods were determined,the initial scheme was analyzed.
LIU Feng, TU ChaoHua, ZHAO YanKai
doaj  

Fast Non-Parametric Learning to Accelerate Mixed-Integer Programming for Online Hybrid Model Predictive Control

open access: yes, 2020
Today's fast linear algebra and numerical optimization tools have pushed the frontier of model predictive control (MPC) forward, to the efficient control of highly nonlinear and hybrid systems.
Martius, Georg, Zhu, Jia-Jie
core   +1 more source

Robust H8 design for resonant control in a CVCF inverter application over load uncertainties [PDF]

open access: yes, 2020
CVCF (constant voltage, constant frequency) inverters are electronic devices used to supply AC loads from DC storage elements such as batteries or photovoltaic cells. These devices are used to feed different kinds of loads; this uncertainty requires that
Bueno Contreras, Holman   +2 more
core   +2 more sources

Sensitivity Analysis of a Stationary Point Set Map under Total Perturbations. Part 2: Robinson Stability

open access: yes, 2018
In Part 1 of this paper, we have estimated the Fr\'echet coderivative and the Mordukhovich coderivative of the stationary point set map of a smooth parametric optimization problem with one smooth functional constraint under total perturbations.
Huyen, Duong Thi Kim   +2 more
core   +1 more source

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