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Enhanced robustness digital holographic microscopy for demanding environment of space biology
Publications associées (41)
Stability of a liquid layer draining around a horizontal cylinder: Interplay of capillary and gravity forces
François Gallaire, Shahab Eghbali, Simeon Vladimirov Djambov
We study the drainage of a viscous liquid film coating the outside of a solid horizontal cylinder, where gravity acts vertically. We focus on the limit of large Ohnesorge numbers Oh, where inertia is negligible compared to viscous effects. We first study t ...
Amer Physical Soc2024Birth and ascent of buoyant hydraulic fractures
Brice Tanguy Alphonse Lecampion, Andreas Möri
Hydraulic fracturing treatments are often used in petroleum and other industries to increase the permeability of rock formations and occur naturally as magmatic intrusions. The resulting fractures, propagating perpendicularly to the minimum in-situ stress ...
2023Experimental and numerical investigation of the unbalance behavior of rigid rotors supported by spiral-grooved gas journal bearings
Jürg Alexander Schiffmann, Elia Iseli
The forced response of rigid rotors, supported by herringbone-grooved gas journal bearings are investigated numerically and experimentally. The rotor configurations are varied by using end cylinders, attached at both sides of the shaft. Three rotors with d ...
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD2022Einstein-Cartan Portal to Dark Matter
Andrey Shkerin, Inar Timiryasov, Sebastian Zell
It is well known since the works of Utiyama and Kibble that the gravitational force can be obtained by gauging the Poincare group, which puts gravity on the same footing as the standard model fields. The resulting theory-Einstein-Cartan gravity-inevitably ...
AMER PHYSICAL SOC2021Gravitational Mass Carried by Sound Waves
We show that the commonly accepted statement that sound waves do not transport mass is only true at linear order. Using effective field theory techniques, we confirm the result found by Nicolis and Penco [Phys. Rev. 13 97, 134516 (2018)] for zero -temperat ...
AMER PHYSICAL SOC2019Compact lensless digital holography
Microscopy is of high interest for biology since it allows imaging features that are too small to
be seen with naked eyes. However, cells are mostly transparent to visible and infrared light
which makes it difficult to see with a traditional microscope. To ...
EPFL2018Erythrocyte's aging in microgravity highlights how environmental stimuli shape metabolism and morphology
Giovanni Dietler, Giovanni Longo
The determination of the function of cells in zero-gravity conditions is a subject of interest in many different research fields. Due to their metabolic unicity, the characterization of the behaviour of erythrocytes maintained in prolonged microgravity con ...
2018Coherent imaging from bacteria to multicellular organisms
Structural and functional imaging of cells, tissues and organisms is crucial for understanding biomedical processes. Fluorescence microscopy is an established tool and has contributed to many discoveries in the life sciences. This technique provides molecu ...
EPFL2017On the Lagrangian structure of transport equations: The Vlasov–Poisson system
The Vlasov-Poisson system is an important nonlinear transport equation, used to describe the evolution of particles under their self-consistent electric or gravitational field. The existence of classical solutions is limited to dimensions d
2017Ultralight Dark Matter Resonates with Binary Pulsars
Sergey Sibiryakov, Diego Blas Temino
We consider the scenario where dark matter (DM) is represented by an ultralight classical scalar field performing coherent periodic oscillations. We point out that such DM perturbs the dynamics of binary systems either through its gravitational field or vi ...
American Physical Society2017