Concept

Disk enclosure

Publications associées (34)

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The complexity of reliable distributed storage

Ron Levy

Distributed storage systems based on commodity hardware have gained in popularity because they are cheaper, can be made more reliable and offer better scalability than centralized storage systems. However, implementing and managing such systems is more com ...

EPFL2008

A multiscale experiment on the tribological behavior of aligned carbon nanotube/ceramic composites

William Curtin

The tribological behavior of well-aligned carbon nanotube (CNT)/alumina nanocomposites was studied at multiple length scales. Pin-on-disk, microscratch and atomic force microscopy were used to test three nanomaterials: alumina matrix, thin-walled and thick ...

2008

Precise Velocity Control of a Hard Disk Drive

The ramp technology was integrated in the Hard Disk Drive a couple of years ago, this technology allows a safer parking position for the heads, but also allow the heads to fly closer from the media, increasing the data density. The Load and Unload operatio ...

2007

Observation of Spontaneous Toroidal Rotation Inversion in Ohmically Heated Tokamak Plasmas

Basil Duval, Antoine Pochelon, Andrea Scarabosio, Alessandro Bortolon

Bulk plasma toroidal rotation is observed to invert spontaneously from counter to cocurrent direction in TCV (Tokamak à Configuration Variable) Ohmically heated discharges, in low confinement mode, without momentum input. The inversion occurs in high curre ...

American Physical Society2006

Overview of the Alcator C-Mod program

Yu Lin

Research on the Alcator C-Mod tokamak has emphasized RF heating, self-generated flows, momentum transport, scrape-off layer (SOL) turbulence and transport and the physics of transport barrier transitions, stability and control. The machine operates with P- ...

2005

Spinouts and innovation in the disk drive industry: Do founders take static or dynamic capabilities with them?

Christopher Tucci, Andrew King

Spinouts and innovation in the disk drive industry: Do founders take static or dynamic capabilities with them? ...

2002

Observations on Equation-Based Rate Control

Jean-Yves Le Boudec, Milan Vojnovic

We consider unicast equation based rate control defined as follows. A source adjusts its rate primarily at loss events to f(p) where p is an estimator of loss event ratio. Function f is typically the loss-throughput formula of a TCP source. In absence of l ...

2002

Sensorless position estimation of linear voice-coil transducers

Yves Perriard, Jan Persson, Christian Blanc

In this paper, a method for sensorless position estimation of linear transducers at standstill is suggested. The method makes use of current pulses, which is a common sensorless starting technique for 3-phase synchronous motors. Most transducers possess ho ...

2001

Ideal Hash Trees

Hash Trees with nearly ideal characteristics are described. These Hash Trees require no initial root hash table yet are faster and use significantly less space than chained or double hash trees. Insert, search and delete times are small and constant, indep ...

2001

Dynamic power management for portable systems

Giovanni De Micheli, Luca Benini

Portable systems require long battery lifetime while still delivering high performance. Dynamic power management (DPM) policies trade off the performance for the power consumption at the system level in portable devices. In this work we present the time-in ...

2000