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A Holistic Methodology for Optimizing Industrial Resource Efficiency

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Réseau de distribution de chaleur et de froid utilisant le CO2 comme fluide caloporteur

Luc Girardin, Jessen Page, Alberto Mian, Samuel Henchoz, Patrick Chatelan, Cédric Dorsaz

Anergy networks with water circulation are an efficient solution for the supply of urban heating services, but require a bulky and expensive infrastructure with higher energy consumption. Replacing water with CO2 enables a more compact solution with lower ...

Office fédéral de l’énergie OFEN, Section Recherche énergétique et cleantech2023

Pretreatment options for micropollutant abatement before aquifer recharge in drinking water production: Assessment of UV/H2O2 and dense membranes

Robin Wünsch

Micropollutants (MP) such as residues of pharmaceuticals, industrial chemicals or pesticides can be detected in almost all water resources. Various processes can be used to abate them in drinking water treatment, e.g., ozonation, advanced oxidation process ...

EPFL2022

Electron Diffraction of Water in No Man's Land

Marcel Drabbels, Ulrich Lorenz, Constantin Richard Krüger, Nathan Junior Mowry, Gabriele Bongiovanni

A generally accepted understanding of the anomalous properties of water will only emerge if it becomes possible to systematically characterize water in the deeply supercooled regime, from where the anomalies appear to emanate. This has largely remained elu ...

2022

Response of alpine stream biofilms to climate change induced stressors

Tom Ian Battin, Hannes Markus Peter, Grégoire Marie Octave Edouard Michoud, Nicola Deluigi, David Touchette, Martina Gonzalez Mateu, Stylianos Fodelianakis, Paraskevi Pramateftaki

Alpine streams are expected to face an intensification of environmental stressors due to climate change. Being at the interface of the vanishing cryosphere, alpine streams are particularly susceptible to increasing temperatures and to changing hydrology. A ...

2022

SIRT7 suppresses energy expenditure and thermogenesis by regulating brown adipose tissue functions in mice

Johan Auwerx

Brown adipose tissue plays a central role in the regulation of the energy balance by expending energy to produce heat. NAD(+)-dependent deacylase sirtuins have widely been recognized as positive regulators of brown adipose tissue thermogenesis. However, he ...

NATURE PORTFOLIO2022

This thesis presents the first large-scale assessment of past, present and future impacts of climate change on river temperatures in Switzerland. Water temperature is a crucial factor influencing, among others, the health of aquatic ecosystems, the industr ...

EPFL2021

We use survey questions about spending in hypothetical scenarios to investigate features of propensities to consume that are useful for distinguishing between consumption theories. We find that (1) responses to unanticipated gains are vastly heterogeneous ...

2021

A major shift in energy systems has started due to drastic changes in climate and air quality, depleting resources, as well as rising social awareness to all these changes. As a result international protocols, such as the Paris agreement, are signed settin ...

EPFL2020

The focus and challenge for energy engineering in the context of rapid climate change is summarised by the Europe 20-20-20 targets, committing to a reduction in energy consumption of 20%. The most logical approach to achieve these goals is to target the mo ...

EPFL2019

Human water use, climate change and land conversion have created a water crisis for billions of individuals and many ecosystems worldwide. Global water stocks and fluxes are estimated empirically and with computer models, but this information is conveyed t ...

NATURE PUBLISHING GROUP2019