Results 171 to 180 of about 957,985 (202)

An adaptive resonant mode compensation for hard disk drives

The 8th IEEE International Workshop on Advanced Motion Control, 2004. AMC '04., 2004
This paper is concerned with a mechanical resonant mode compensation problem for hard disk drives. Conventional notch filters must have deep and wide enough frequency characteristics in order to accommodate all possible resonant mode characteristics perturbation, which results in deterioration in positioning accuracy and residual vibration after ...
K. Ohno, T. Hara
openaire   +1 more source

Time-Dependent Ginzburg-Landau Equations for Hard-Mode Instabilities

Journal of the Physical Society of Japan, 1981
An equation for self-oscillations with small amplitudes near hard-mode instabilities is derived by means of a reductive perturbation approach. The present equation can be used to discuss both normally and invertedly bifurcating cases, bacause the present equation is equivalent to each set of equations resulting from reductive perturbations up to the ...
Kaoru Yamafuji, Kiyoshi Toko, Kiichi Urahama   +2 more
openaire   +1 more source

Fast sliding-mode seek control of hard disk servos

Microsystem Technologies, 2003
A nonlinear controller is presented for both seeking control and following control in hard disk servos. Usually, a switching mechanism is used for mode transit from seeking to following. As a result, the seeking time and settling time are lengthened very much, especially for short seeks.
J. Zhou, Y. Wang
openaire   +1 more source

Modes of Extrapolation: The Formulas of Hard SF

Science Fiction Studies, 1993
Like other popular artforms, science fiction is “formulaic,” but its formulas, ranging from myth to mathematics, cannot be determined simply by era, setting, type of plot, or conventional values. As a form of fantasy, SF uses exaggeration, inversion, and extension as points of relevance to readers focused on the here and now.
openaire   +1 more source

Influence of diffraction on hard-aperture Kerr-lens mode locking

Optics Letters, 1995
It is demonstrated that with rigorous inclusion of diffraction on an intracavity hard aperture the values of the nonlinear differential loss coefficient Gamma (which characterizes the efficiency of Kerr-lens mode locking) are several times higher than in the commonly used simplified approach in which diffraction effects are neglected.
openaire   +2 more sources

Deviatoric and hydrostatic mode interaction in hard and soft tissue

Journal of Biomechanics, 1990
It has been established that many hard and soft tissues have anisotropic material symmetry. It is noted here that the deviatoric and hydrostatic modes interact with each other in a general anisotropic elastic material. In the special case of isotropic, linear elastic, materials these modes are non-interactive.
openaire   +2 more sources

Study on the load-end shortening formulae of structural elements including hard corner element considering collapse modes based on test and numerical modelling

Thin-Walled Structures, 2023
Zhao Jun Song
exaly  

Analysis of Lyapunov modes for hard-disk fluids

XIVth International Congress on Mathematical Physics, 2006
CHRISTINA FORSTER, ROBIN HIRSCHL, HARALD A. POSCH   +2 more
openaire   +1 more source

THE HARD-BOILED MODE

2005
openaire   +1 more source

Study on the relationship of design parameters and damage modes for RC slabs subjected to large-scale hard missile impacts base on task-driven approach

Structures, 2023
exaly