Publications associées à Enigma (machine)

Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings

Jürg Alexander Schiffmann, Patrick Hubert Wagner, Philipp Kaspar Bättig

This paper presents the results of a theoretical and experimental investigation of the potential of enhanced groove geometries to increase the bearing clearance of a Herringbone Grooved Journal Bearing (HGJB) supported rotor. The theoretical study investig ...

2022

Nonlinear study on a rigid rotor supported by herringbone grooved gas bearings: Theory and validation

Jürg Alexander Schiffmann, Patrick Hubert Wagner, Philipp Kaspar Bättig, Wanhui Liu

The nonlinear behavior of a rigid rotor supported by herringbone grooved journal gas bearings (HGJBs) was investigated in this study. The two-dimensional narrow groove theory (2D-NGT) was adopted to model the HGJBs. A set of integrated rotor-bearing state ...

2021

Rotor Position Estimation with Hall-Effect Sensors in Bearingless Drives

Yves Perriard, Juan Patricio Tomás Peralta Fierro

The estimation of rotor position is fundamental for the commissioning of magnetically-levitated drives. The sensors required for this measurement must be close to the rotor, often requiring constructive measures that may limit the application potential of ...

IEEE2020

Swap and Rotate: Lightweight Linear Layers for SPN-based Blockciphers

Serge Vaudenay, Francesco Regazzoni, Subhadeep Banik, Muhammed Fatih Balli

In CHES 2017, Jean et al. presented a paper on "Bit-Sliding" in which the authors proposed lightweight constructions for SPN based block ciphers like AES, PRESENT and SKINNY. The main idea behind these constructions was to reduce the length of the datapath ...

2020

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

Yves Perriard, Sean Thomas, Juan Patricio Tomás Peralta Fierro

Magnetically-levitated drives are compelling in applications where long-lifetime operation or process chamber encapsulation is a requirement. To exploit these advantages, contactless position sensors are needed for position information of the rotor. Off-th ...

IEEE2020

MRI after successful eyeWatch(TM) implantation

Nikolaos Stergiopoulos, André Mermoud, Sylvain Roy, Adan Villamarin

The eyeWatch(TM) is a new glaucoma drainage device that includes an adjustable mechanism that can vary the resistance to aqueous humor outflow during the postoperative period to reduce the burden of postoperative intraocular pressure (IOP) management. The ...

SAGE PUBLICATIONS LTD2020

Six Shades of AES

Subhadeep Banik, Muhammed Fatih Balli

Recently there have been various attempts to construct light weight implementations of the AES-128 encryption and combined encryption/ decryption circuits. However no known lightweight circuit exists forAES-192 and AES-256, the variants of AES that use lon ...

2019

A Study of Persistent Fault Analysis

Andrea Felice Caforio, Subhadeep Banik

Persistent faults mark a new class of injections that perturb lookup tables within block ciphers with the overall goal of recovering the encryption key. Unlike earlier fault types persistent faults remain intact over many encryptions until the affected dev ...

Springer2019

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Enigma (machine)

Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings

Nonlinear study on a rigid rotor supported by herringbone grooved gas bearings: Theory and validation

Rotor Position Estimation with Hall-Effect Sensors in Bearingless Drives

Swap and Rotate: Lightweight Linear Layers for SPN-based Blockciphers

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

Small-scale organic Rankine cycle turbo-generator for waste heat recovery on truck engine

Small scale very high speed slotless permanent magnet motors

MRI after successful eyeWatch(TM) implantation

Six Shades of AES

A Study of Persistent Fault Analysis

Graph Chatbot

Chattez avec Graph Search

Small-scale organic Rankine cycle turbo-generator for waste heat recovery on truck engine

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

A Study of Persistent Fault Analysis

Six Shades of AES

Nonlinear study on a rigid rotor supported by herringbone grooved gas bearings: Theory and validation

Swap and Rotate: Lightweight Linear Layers for SPN-based Blockciphers

MRI after successful eyeWatch(TM) implantation

Small scale very high speed slotless permanent magnet motors

Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings

Rotor Position Estimation with Hall-Effect Sensors in Bearingless Drives