All-fiber hybrid piezoelectric-enhanced triboelectric nanogenerator for wearable gesture monitoring

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Steps parameters of elderly patients hospitalised for an acute medical illness in a Swiss University Hospital: an observational pilot study

BACKGROUND: Objective mobility goals for elderly hospitalised medical patients remain debated. We therefore studied steps parameters of elderly patients hospitalised for an acute illness, to determine goals for future interventional trials and medical prac ...

SMW supporting association2022

Solid-state synthesis of CdFe2O4 binary catalyst for potential application in renewable hydrogen fuel generation

Michael Graetzel, Shaik Mohammed Zakeeruddin

Clean energy is highly needed at this time when the energy requirements are rapidly increasing. The observed increasing energy requirement are largely due to continued industrialization and global population explosion. The current means of energy source is ...

Nature Portfolio2022

Recent progress in silk fibroin-based flexible electronics

Jürgen Brugger, Xiao Sheng Zhang, Ya Wang, Peng Huang

With the rapid development of the Internet of Things (IoT) and the emergence of 5G, traditional silicon-based electronics no longer fully meet market demands such as nonplanar application scenarios due to mechanical mismatch. This provides unprecedented op ...

2021

Silk granular hydrogels self-reinforced with regenerated silk fibroin fibers

Dominique Pioletti, Pierre-Etienne Bourban, Peyman Karami, Céline Samira Wyss, Adrien Julien Demongeot

Granular hydrogels with high stability, strength, and toughness are laborious to develop. Post-curing is often employed to bind microgels chemically and enhance mechanical properties. Here a unique strategy was investigated to maintain microgels together w ...

2021

A 4D printed active compliant hinge for potential space applications using shape memory alloys and polymers

Jamie Paik, Zhenishbek Zhakypov, Jian-Lin Huang, Ralph Spolenak

This paper presents the proof-of-concept for a 4D printed active compliant hinge with a selectively variable stiffness for the deployment and reorientation of satellite appendages. We use 4D printing to create an active compliant hinge capable of bending t ...

IOP PUBLISHING LTD2021

On The Efficiency Of Energy Storage Systems - The Influence Of The Exchanged Power And The Penalty Of The Auxiliaries

Alfred Rufer

Storage is an important domain of the energy sector, with its traditional, classical solutions for smaller and larger amounts of energy. Energy storage has become of higher importance in relation with the development of alternative energy sources, leading ...

UNIV NIS2021

An analysis of the impacts of green mobility strategies and technologies on different European energy system

François Maréchal, Jonas Schnidrig, Tuong-Van Nguyen

A successful decarbonization of the European Union, coupled with a high integration of renewable energy and ambitious targets for energy efficiency, can only be reached with a significant contribution from transport. This sector currently represents a quar ...

2021

MBioTracker: Multimodal Self-Aware Bio-Monitoring Wearable System for Online Workload Detection

David Atienza Alonso, Adriana Arza Valdes, Fabio Isidoro Tiberio Dell'Agnola, Una Pale, Rodrigo Mariño Andrés

Cognitive workload affects operators' performance principally in high-risk or time-demanding situations and when multitasking is required. An online cognitive workload monitoring system can provide valuable inputs to decision-making instances, such as the ...

2021

Potential of Photovoltaic Panels on Building Envelopes for Decentralized District Energy Systems

François Maréchal, Luc Girardin, Luise Middelhauve, Francesco Baldi

The expected increase of the penetration of distributed renewable energy technologies into the electricity grid is expected to lead to major challenges. As a main stakeholder, authorities often lack the appropriate tools to frame and encourage the transiti ...

2021

Stability of inks used for masking metallic interconnects in BIPV modules

Christophe Ballif, Alessandro Francesco Aldo Virtuani, Alejandro Borja Block

The necessity to reduce carbon emissions has pushed European institutions to foster the adoption - for new buildings - of Nearly Zero Energy Buildings, which need to minimize energy consumption with energy generated on site. This opens up an enormous poten ...

2021

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Steps parameters of elderly patients hospitalised for an acute medical illness in a Swiss University Hospital: an observational pilot study

Anisoara Ionescu, Francesco Tommasini

SMW supporting association2022