Results 81 to 90 of about 4,154,888 (239)
Environmental Impact on the Southeast Limb of the Cygnus Loop
, 2004 We analyze observations from the Chandra X-ray Observatory of the southeast knot of the Cygnus Loop supernova remnant. In this region, the blast wave propagates through an inhomogeneous environment.
James R. Graham +2 more
core +1 more source
FREQ: A computational package for multivariable system loop-shaping procedures [PDF]
Many approaches in the field of linear, multivariable time-invariant systems analysis and controller synthesis employ loop-sharing procedures wherein design parameters are chosen to shape frequency-response singular value plots of selected transfer ...
Armstrong, Ernest S., Giesy, Daniel P.
core +1 more source
Adaptive control of CO$_2$ bending vibration: deciphering field-system dynamics
, 2008 We combined adaptive closed-loop optimization, phase-shaping with a restricted search space and imaging to control dynamics and decipher the optimal pulse.
G.-Y. Chen +5 more
core +1 more source
Altitude Control for Small Fixed-Wing Aircraft Using H∞ Loop-Shaping Method
, 2016 Autopilot systems for UAVs without human pilots maintain the flight through an appropriate balance of aerodynamic forces autonomously. That is to say, they are used to make flight missions more reliable and efficient. Autopilot system design architecture
S. Akyurek, Unver Kaynak, C. Kasnakoǧlu
semanticscholar +1 more source
Study of First-Order Thermal Sigma-Delta Architecture for Convective Accelerometers
, 2008 This paper presents the study of an original closed-loop conditioning approach for fully-integrated convective inertial sensors. The method is applied to an accelerometer manufactured on a standard CMOS technology using an auto-aligned bulk etching step.
Latorre, Laurent +3 more
core +4 more sources
International Journal of Naval Architecture and Ocean Engineering, 2017 Course keeping is hard to implement under the condition of the propeller stopping or reversing at slow speed for berthing due to the ship's dynamic motion becoming highly nonlinear. To solve this problem, a practical Maneuvering Modeling Group (MMG) ship
Qiang Zhang, Xian-ku Zhang, Nam-kyun Im
doaj +1 more source
Physical Dissipation and the Method of Controlled Lagrangians [PDF]
, 2001 We describe the effect of physical dissipation on stability of equilibria which have been stabilized, in the absence of damping, using the method of controlled Lagrangians. This method applies to a class of underactuated mechanical systems including “
Bloch, A. M. +3 more
core
Proceedings of the Royal Society A, 2016 Combustion instabilities arise owing to a two-way coupling between acoustic waves and unsteady heat release. Oscillation amplitudes successively grow, until nonlinear effects cause saturation into limit cycle oscillations.
Jingxuan Li, A. Morgans
semanticscholar +1 more source
Modified PID control with H∞ loop shaping synthesis for RO desalination plants
, 2016 This paper deals with the PID control synthesis with robust (H∞) loop shaping framework to manage MIMO reverse osmosis (RO) desalination plants. This new method takes advantage of the robust controller which has a fixed low order of conventional PID ...
B. Phuc, S. You, T. Lim, Hwan-Seong Kim
semanticscholar +1 more source
A tutorial on loop-shaping control methodologies for precision positioning systems
Advances in Mechanical Engineering, 2017 Many servo systems require micro/nano-level positioning accuracy. This requirement sets a number of challenges from the viewpoint of sensing, actuation, and control algorithms. This article considers control algorithms for precision positioning.
Dan Wang, Xu Chen
doaj +1 more source