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Consortium of Swiss Academic Libraries

(NH4)2SO4 recovery from liquid side streams

Boehler, Marc ; Heisele, Alexander ; Seyfried, Alexander ; Grömping, Markus ; Siegrist, Hansruedi

In: Environmental Science and Pollution Research, 2015, vol. 22, no. 10, p. 7295-7305

Università della Svizzera italiana

Gold and bubbles: an impossible binomial? : a review of historical and current evidence

Beretta, Edoardo ; Peluso, Stefano

In: Applied economics letters, 2021, p. 5 p

Gold has a far-reaching history of ‘safe haven’ or ‘anchor of stability’. However, the epitome of precious metals has recently deviated from its historical price trend. Fluctuations and volatility have increased too. We argue that gold is not subject to bubbles (due to its scarcity in nature), although its price is. By means of a logical-analytical macroeconomic approach combined with...

Université de Fribourg

Colloidal gelation, a means to study elasto-capillarity effects in foam

Mikhailovskaya, Alesya ; Trappe, Véronique ; Salonen, Anniina

In: Soft Matter, 2020, vol. 16, no. 9, p. 2249–2255

We explore the evolution of the mechanical properties of a coarsening foam containing colloidal particles that undergo a sol–gel transition in the continuous phase. This enables us to investigate the impact of elasto-capillarity on foam mechanics over a wide range of elasto-capillary numbers. Right after initiating aggregation the foam mechanics is predominantly determined by the elasticity...