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Publications associées (183)
Influence of micro-patterned support properties and interfacial polymerization conditions on performance of patterned thin-film composite membranes
Kumar Varoon Agrawal, Cédric Karel J Van Goethem
Patterned membranes prepared via spray-modified non -solvent induced phase separation (s-NIPS) have successfully shown enhanced fluxes and better fouling control, thanks to the increased surface area and high fluid shear at the membrane/feed interface. The ...
Elsevier2024Millimeter-wave to near-terahertz sensors based on reversible insulator-to-metal transition in VO2
Mihai Adrian Ionescu, Teodor Rosca, Fatemeh Qaderi Rahaqi
In the quest for low power bio-inspired spiking sensors, functional oxides like vanadium dioxide are expected to enable future energy efficient sensing. Here, we report uncooled millimeter-wave spiking detectors based on the sensitivity of insulator-to-met ...
SPRINGERNATURE2023Learning a QoE Metric from Social Media and Gaming Footage
Catalina Paz Alvarez Inostroza
Defining a universal metric for Quality of Experience (QoE) is notoriously hard due to the complex relationship between low-level performance metrics and user satisfaction. The most common metric, the Mean Opinion Score (MOS), has well-known biases and inc ...
2023Subthreshold VO2 vertical switches for large-bandwidth millimeter-wave and sub-terahertz detection
Mihai Adrian Ionescu, Ali Gilani, Daesung Park, Fatemeh Qaderi Rahaqi
n-linear impedance characteristics of VO2 offer solutions to highly sensitive radio-frequency (RF), millimeterwave (mm-wave), and terahertz (THz) detectors. We demonstrate high-speed broadband sensibility of miniaturized VO2 switches by utilizing the nonli ...
IEEE2022Byzantine Consensus is Θ(n^2): The Dolev-Reischuk Bound is Tight even in Partial Synchrony!
Rachid Guerraoui, Jovan Komatovic, Pierre Philippe Civit, Manuel José Ribeiro Vidigueira, Vincent Gramoli, Seth Gilbert
The Dolev-Reischuk bound says that any deterministic Byzantine consensus protocol has (at least) quadratic communication complexity in the worst case. While it has been shown that the bound is tight in synchronous environments, it is still unknown whether ...
Dagstuhl Publishing2022Mismatched Decoding Reliability Function at Zero Rate
We derive an upper bound on the reliability function of mismatched decoding for zero-rate codes. The bound is based on a result by Komlos that shows the existence of a subcode with certain symmetry properties. The bound is shown to coincide with the expurg ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022High Tuning Range Spiking 1R-1T VO2 Voltage-Controlled Oscillator for Integrated RF and Optical Sensing
Mihai Adrian Ionescu, Teodor Rosca, Fatemeh Qaderi Rahaqi
In this work we propose and experimentally validate a relaxation spiking oscillator architecture with ultra-high tuning range (higher than 400%, from 5KHz to more than 25kHz when the control voltage is varied from 2.5 to 5V) that exploits the reversible me ...
IEEE2021Contextual Semi-Supervised Learning: An Approach To Leverage Air-Surveillance and Untranscribed ATC Data in ASR Systems
Petr Motlicek, Juan Pablo Zuluaga Gomez, Amrutha Prasad
Air traffic management and specifically air-traffic control (ATC) rely mostly on voice communications between Air Traffic Controllers (ATCos) and pilots. In most cases, these voice communications follow a well-defined grammar that could be leveraged in Aut ...
ISCA-INT SPEECH COMMUNICATION ASSOC2021Time-Delay Encoded Image Recognition in a Network of Resistively Coupled VO2 on Si Oscillators
Kirsten Emilie Moselund, Siegfried Karg
Oscillatory neural networks based on insulator to metal transition of VO2 switches are implemented for image recognition. The VO2 oscillators are fabricated on silicon in a CMOS compatible process.A fullyconnected network of coupled oscillators is investig ...
2020Multiarm and Substituent Effects on Charge Transport of Organic Hole Transport Materials
Mohammad Khaja Nazeeruddin, Kevin Sivula, Liang Yao, Antonio Prlj, Kun-Han Lin, Nikita Drigo, Han-Hee Cho
We explore several potential dopant-free triphenylamine-based hole transport materials for perovskite solar cells by combining two design strategies: (1) incorporation of multiple arms for mobility enhancement and (2) including Lewis bases that assist in d ...
2019