Publications associées à Proof of space

Understanding learning at a glance: An overview of learning dashboard studies

Pierre Dillenbourg, Denis Gillet, Maria Jesus Rodriguez Triana, Adrian Christian Holzer, Andrii Vozniuk, Beat Adrian Schwendimann, Luis Pablo Prieto Santos, Mina Shirvani Boroujeni

Research on learning dashboards aims to identify what data is meaningful to different stakeholders in education, and how data can be presented to support sense-making processes. This paper summarizes the main outcomes of a systematic literature review on l ...

Assoc Computing Machinery2016

Single-Layer Quad-Band Printed Reflectarray Antenna with Dual Linear Polarization

Anja Skrivervik, Julien Perruisseau-Carrier, Hamed Hasani

A novel single layer, dual linear polarized unit cell is introduced for a quad-band reflectarray antenna in the Ku-band centered around 12, 13, 14, and 15.5 GHz. The unit-cell design is such that the resultant reflectarray antenna can be considered as four ...

IEEE-Inst Electrical Electronics Engineers Inc2015

Laser-assisted morphing of complex three dimensional objects

Yves Bellouard, Jakub Drs

Morphing refers to the smooth transition from a specific shape into another one, in which the initial and final shapes can be significantly different. A typical illustration is to turn a cube into a sphere by continuous change of shape curvatures. Here, we ...

Optical Society of America2015

Chiral Cyclopentadienyl Iridium(III) Complexes Promote Enantioselective Cycloisomerizations Giving Fused Cyclopropanes

Nicolai Cramer, Yun-Suk Jang, Michael Christian Dieckmann

The cyclopentadienyl (Cp) group is a very important ligand for many transition-metal complexes which have been applied in catalysis. The availability of chiral cyclopentadienyl ligands (Cp-x) lags behind other ligand classes, thus hampering the investigati ...

Wiley-V C H Verlag Gmbh2015

Unifying Leakage Models: From Probing Attacks to Noisy Leakage

Alexandre Raphaël Duc, Sebastian Faust

A recent trend in cryptography is to formally show the leakage resilience of cryptographic implementations in a given leakage model. One of the most prominent leakage models -- the so-called bounded leakage model -- assumes that the amount of leakage is a- ...

Springer2014

Controlled release from a mechanically-stimulated thermosensitive self-heating composite hydrogel

Dominique Pioletti, Harm-Anton Klok, Mohamadreza Nassajian Moghadam, Vitaliy Kolesov

Temperature has been extensively explored as a trigger to control the delivery of a payload from environment-sensitive polymers. The need for an external heat source only allows limited spatiotem- poral control over the delivery process. We propose a new a ...

Elsevier Sci Ltd2014

Peer Assessment Based on Ratings in a Social Media Course

Denis Gillet, Adrian Christian Holzer, Andrii Vozniuk

Peer assessment is seen as a powerful supporting tool to achieve scalability in the evaluation of complex assignments in large courses, possibly virtual ones, as in the context of massive open online courses (MOOCs). However, the adoption of peer assessmen ...

2014

Microdrop generation and deposition of ionic liquids

Jürgen Brugger, Victor Javier Cadarso Busto

This work describes the use of a piezo-actuated inkjet print head with a nozzle aperture of 50 mu m to obtain picoliter drops of different model ionic liquids (ILs). A theoretical analysis of the microdrop generation of three model ILs is confirmed by expe ...

Materials Research Society2014

Laser-assisted growth of carbon nanotubes on laser-patterned substrates and inside sealed micro-channels

Yves Bellouard

Carbon nanotube assemblies can be used for specific applications such as sensors and filters. We present a method and proof-of-concept to directly grow vertically-aligned carbon nanotube structures within sealed enclosures by means of a feedback-controlled ...

SPIE-INT SOC OPTICAL ENGINEERING2014

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Proof of space

Understanding learning at a glance: An overview of learning dashboard studies

Single-Layer Quad-Band Printed Reflectarray Antenna with Dual Linear Polarization

Laser-assisted morphing of complex three dimensional objects

Chiral Cyclopentadienyl Iridium(III) Complexes Promote Enantioselective Cycloisomerizations Giving Fused Cyclopropanes

Unifying Leakage Models: From Probing Attacks to Noisy Leakage

Controlled release from a mechanically-stimulated thermosensitive self-heating composite hydrogel

Peer Assessment Based on Ratings in a Social Media Course

How to Localize Ten Microphones in One Fingersnap

Microdrop generation and deposition of ionic liquids

Laser-assisted growth of carbon nanotubes on laser-patterned substrates and inside sealed micro-channels

Graph Chatbot

Chattez avec Graph Search

Single-Layer Quad-Band Printed Reflectarray Antenna with Dual Linear Polarization

Laser-assisted morphing of complex three dimensional objects

Peer Assessment Based on Ratings in a Social Media Course

Understanding learning at a glance: An overview of learning dashboard studies

How to Localize Ten Microphones in One Fingersnap

Chiral Cyclopentadienyl Iridium(III) Complexes Promote Enantioselective Cycloisomerizations Giving Fused Cyclopropanes

Laser-assisted growth of carbon nanotubes on laser-patterned substrates and inside sealed micro-channels

Microdrop generation and deposition of ionic liquids

Unifying Leakage Models: From Probing Attacks to Noisy Leakage

Controlled release from a mechanically-stimulated thermosensitive self-heating composite hydrogel