Publications associées (346)

Toward Wideband Steerable Acoustic Metasurfaces with Arrays of Active Electroacoustic Resonators

Romain Christophe Rémy Fleury, Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Thomas Laurence

We introduce an active concept for achieving acoustic metasurfaces with steerable reflection properties, effective over a wide frequency band. The proposed active acoustic metasurface consists in a surface array of subwavelength loudspeakers diaphragms, ea ...
2018

Incident Angle Dependence of CHD3 Dissociation on the Stepped Pt(211) Surface

Rainer Beck, Ana Gutiérrez González, Helen Jane Chadwick

The dissociation of methane on transition metal surfaces is not only of fundamental interest but also of industrial importance as it represents a rate-controlling step in the steam-reforming reaction used commercially to produce hydrogen. Recently, a speci ...
2018

Conceptualising urban systems for sustainability assessment

Pekka Jaakko Halla

In the context of sustainable urban development, methodologies under the banner of sustainability assessment have the potential to contribute to the systematic operationalisation of sustainability as a decision-making strategy. To adequately capture the sy ...
2018

22% Efficient Dopant-free Interdigitated Back Contact Silicon Solar Cells

Christophe Ballif, Bertrand Yves Paul Paviet-Salomon, Matthieu Despeisse, Mathieu Gérard Boccard, Sihua Zhong, Wenjie Lin, Weiliang Wu, Hui Shen

In this study, we present dopant-free back contact heterojunction silicon solar cells employing MoOx and MgFx based stacks as hole-and electron-selective contacts deposited using a thermal evaporation process at low temperature. Only two masking steps and ...
AMER INST PHYSICS2018

Theta laser

Camille Sophie Brès, Svyatoslav Kharitonov

An unidirectional short-wave infrared fiber laser, comprising a theta cavity, with a gain unit based on rare-earth cations-doped fiber, the theta cavity having a ring cavity with two additional 2 input ports×2 output ports directional couplers DC1 and DC2 ...
2018

An Eight lanes 7Gb/s/pin Source Synchronous Single-Ended RX with Equalization and Far-End Crosstalk Cancellation for Backplane Channels

Volkan Cevher, Cosimo Aprile, Yusuf Leblebici, Alessandro Cevrero, Lukas Kull, Thomas Toifl

This paper presents a versatile crosstalk cancellation scheme for single-ended multi-lane backplane links. System-level investigations show that a scheme, which combines analog filters and decision-feedback crosstalk compensation on the receiver (RX) side ...
2018

Learning to See through Reflections

Sabine Süsstrunk

"Pictures of objects behind a glass are difficult to interpret" "and understand due to the superposition of two real images: a reflection layer and a background layer. Separation of these two layers is challenging due to the ambiguities in as- signing text ...
IEEE2018

Experimental Study at Prototype Scale of a Self-priming Free-Surface Siphon

Giovanni De Cesare, Paloma Furlan

This study is within the frame of the construction of the rail link between Geneva Cornavin station, Eaux-Vives station and Annemasse (CEVA). The project area is located at a cut-and-cover tunnel built by slurry walls located in the alluvium of the Foron R ...
Springer2018

Electrospray film deposition for solvent-elimination infrared spectroscopy

Satoshi Takahama, Giulia Ruggeri, Nikunj Dudani, Andrea Mario Arangio, Amir Yazdani, Christophe Eric Ludovic Delval

The application of electrospray (ES) for quantitative transfer of analytes from solution to an internal reflection element for analysis by Attenuated Total Reflectance - Fourier Transform Infrared (ATR-FTIR) spectroscopy has been developed in this work. Th ...
2018

Jetting from cavitation bubbles due to multiple shockwaves

Mohamed Farhat, Outi Supponen

We present experimental observations of microjets formed by cavitation microbubbles. An underwater electric discharge, applied beneath a flat free surface, produces a primary compression wave, which undergoes several phase inversions upon reflections from ...
AMER INST PHYSICS2018

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