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Programmable Seizure Detector Using a 32-bit RISC Processor for Implantable Medical Devices

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Statistical Fault Injection for Impact-Evaluation of Timing Errors on Application Performance

Andreas Peter Burg, Jeremy Hugues-Felix Constantin, Georgios Karakonstantis

This paper proposes a novel approach to modeling of gate level timing errors during high-level instruction set simulation. hi contrast to conventional, purely random fault injection, our physically motivated approach directly relates to the underlying circ ...

Ieee2016

Design and Development of a Diagnostic System for a Non-Intercepting Direct Measure of the SPIDER Ion Source Beamlet Current

Basile Marie Jacques Pouradier Duteil

Stable and uniform beams with low divergence are required in particle accelerators; therefore, beyond the accelerated current, measuring the beam current spatial uniformity and stability over time is necessary to assess the beam performance, since these pa ...

MDPI2023

Investigation of nickel iron layered double hydroxide for water oxidation in different pH electrolytes

Michael Graetzel, Dan Ren, Lichen Bai

Nickel iron layered double hydroxide (NiFe LDH) is one of the best oxygen evolution reaction (OER) catalysts in alkaline electrolytes. However, it performs poorly in neutral electrolytes, and the detailed mechanism is still unclear. Herein, we introduce el ...

ELSEVIER2023

A Time-Based, Digitally Intensive Circuit and System Architecture for Wireless Neural Recording with High Dynamic Range

Alexandre Schmid, Chen Cao, Wen-Yang Hsu

A new type of wireless neural recording front-end with PWM modulation and VCO-based ADC is proposed. The target signal is first encoded into binary levels with varying pulse width by PWM modulation, which intrinsically has much higher dynamic range compare ...

2016

Maximum likelihood estimation of distribution grid topology and parameters from Smart Meter data

Lisa Carole Françoise Laurent, Giancarlo Ferrari Trecate, Jean-Sébastien Hubert Brouillon

This paper defines a Maximum Likelihood Estimator (MLE) for the admittance matrix estimation of distribution grids, utilising voltage magnitude and power measurements collected only from common, unsychronised measuring devices (Smart Meters). First, we pre ...

IEEE2023

Exploiting Dynamic Timing Margins in Microprocessors for Frequency-Over-Scaling with Instruction-Based Clock Adjustment

Andreas Peter Burg, Georgios Karakonstantis, Jeremy Hugues-Felix Constantin

Static timing analysis provides the basis for setting the clock period of a microprocessor core, based on its worst-case critical path. However, depending on the design, this critical path is not always excited and therefore dynamic timing margins exist th ...

2015

Single-arm diagnostic electrocardiography with printed graphene on wearable textiles

Ata Jedari Golparvar

Stimulated by the COVID-19 outbreak, the global healthcare industry better acknowledges the necessity of innovating novel methods for remote healthcare monitoring and treating patients outside clinics. Here we report the development of two different types ...

ELSEVIER SCIENCE SA2023

Accelerators for Data Processing

Yusuf Onur Koçberber

The explosive growth in digital data and its growing role in real-time analytics motivate the design of high-performance database management systems (DBMSs). Meanwhile, slowdown in supply voltage scaling has stymied improvements in core performance and ush ...

EPFL2015

Hydrogen-sieving zeolitic films by coating zeolite nanosheets on porous polymeric support

Kumar Varoon Agrawal, Luis Francisco Villalobos Vazquez de la Parra, Mostapha Dakhchoune, Xuekui Duan

The synthesis of high-performance gas-sieving zeolitic film is challenging because it involves seeded secondary growth which is complex and difficult to reproduce. Additionally, expensive asymmetric inorganic porous supports are often needed for calcinatio ...

ELSEVIER2023

A Survey on Low-Power Techniques with Emerging Technologies: From Devices to Systems

Giovanni De Micheli, Pierre-Emmanuel Julien Marc Gaillardon

Nowadays, power consumption is one of the main limitations of electronic systems. In this context, novel and emerging devices provide us with new opportunities to keep the trend to low-power design. In this survey paper, we present a transversal survey on ...

Assoc Computing Machinery2015

The role of the visual field size in artificial vision

Diego Ghezzi

Objective. Artificial vision has been and still is the subject of intense research. The ultimate goal is to help blind people in their daily life. Approaches to artificial vision, including visual prostheses and optogenetics, have strongly focused on resto ...

IOP Publishing Ltd2023

Integrated Electronics to Control and Readout Electrochemical Biosensors for Implantable Applications

Seyedeh Sara Ghoreishizadeh

Biosensors can effectively be used to monitor multiple metabolites such as glucose, lactate, ATP and drugs in the human body. Continuous monitoring of these metabolites is essential for patients with chronic or critical conditions. Moreover, this can be us ...

EPFL2015

Atmospheric water harvesting in semi-arid regions by membranes: A techno-economic assessment

Kumar Varoon Agrawal, Marina Micari, Xuekui Duan

The availability of a reliable and sufficient amount of water constitutes one of the Sustainable Development Goals set by the United Nations. The provision of water is still challenging in many regions of the world, especially in arid and semi-arid regions ...

ELSEVIER2023

High-level synthesis of dataflow programs for heterogeneous platforms : design flow tools and design space exploration

Endri Bezati

The growing complexity of digital signal processing applications implemented in programmable logic and embedded processors make a compelling case the use of high-level methodologies for their design and implementation. Past research has shown that for comp ...

EPFL2015

New Insights Into the I/V Hysteretic Characteristics of Memristive Biosensors

Sandro Carrara, Ata Jedari Golparvar, Gian Luca Barbruni, Junrui Chen, Kapil Bhardwaj

Over the past decade, significant advancements have been made in the study of silicon nanowires (SiNWs). These nanoscaled devices can exhibit a memristive type of hysteresis in the current/voltage (I/V) plane that has been utilized in the biosensors leadin ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2023

Temperature-Aware Runtime Power Management for Chip-Multiprocessors with 3-D Stacked Cache

Giovanni De Micheli, Siang-Yun Lee

The advent of 3-D fabrication technology makes it possible to stack a large amount of last-level cache memory onto a multi-core die to reduce off-chip memory accesses and, thus, increases system performance. However, the higher power density (i.e., power d ...

2014

Energy/Reliability Trade-Offs in Low-Voltage ReRAM-Based Non-Volatile Flip-Flop Design

Giovanni De Micheli, Yusuf Leblebici, Andreas Peter Burg, Pierre-Emmanuel Julien Marc Gaillardon, Davide Sacchetto, Pascal Andreas Meinerzhagen

The total power budget of Ultra-Low Power (ULP) VLSI Systems-on-Chip (SoCs) is often dominated by the leakage power of embedded memories as well as status registers. On the one hand, supply voltage scaling down to the near-threshold (near-VT

Institute of Electrical and Electronics Engineers2014

Uniaxial Cyclic and Tensile Tests on Structural Metallic Materials

Dimitrios Lignos, Albano António De Abreu E Presa De Castro E Sousa, Selimcan Ozden

Experimental data is imperative to characterize the behavior of materials used in structural analysis models. The aim of this data paper is to establish a database of material-scale uniaxial experiments, primarily conducted at EPFL, to assist with simulati ...

ASCE-AMER SOC CIVIL ENGINEERS2023

Digital One-Shot Charge-balancing Method for Implantable Current-Mode Electrical Stimulation

Alexandre Schmid, Keyvan Farhang Razi

A low-power digital charge balancing system, which ensures the safe operation of constant-current biphasic stimulation is presented. The concept of the proposed charge-balancing technique is to utilize a hybrid method consisting of anodic pulse modulation ...

IEEE2023

Polarity-Controllable Silicon Nanowire Transistors with Dual Threshold Voltages

Giovanni De Micheli, Yusuf Leblebici, Pierre-Emmanuel Julien Marc Gaillardon, Davide Sacchetto, Jian Zhang, Michele De Marchi

Gate-all-around (GAA) silicon nanowires enable an unprecedented electrostatic control on the semiconductor channel that can push device performance with continuous scaling. In modern electronic circuits, the control of the threshold voltage is essential fo ...

Institute of Electrical and Electronics Engineers2014