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Maximizing friction by liquid flow clogging in confinement

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Measuring evaporation rates of metal compounds from solid samples

Christian Ludwig

A thermogravimeter (TGA, Mettler-Toledo TGA/SDTA851(e)) was connected to an inductively coupled plasma optical emission spectrometer (ICP-OES, Varian Liberty 110) using a condensation interface (CI), which transforms gaseous high-boiling-temperature substa ...

2007

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We present a new approach for the manipulation of small liquid samples for the miniaturization of bioanalytical systems. In our system, minute liquid volumes are manipulated via the interaction of a changeable magnetic field and magnetic microparticles con ...

2007

Efavirenz-induced urolithiasis

Joël Teuscher

We describe the first case of efavirenz-induced urolithiasis in a 47-year-old HIV-positive patient. Urinary obstruction led to pyelonephritis and septic shock, requiring emergency ureteral catheterisation. The subsequent clinical course was favourable, all ...

2006

Transition of the mushy zone from continuous liquid films to a coherent solid

Michel Rappaz, Stéphane Vernède

While studies of solidification microstructures have focused mainly on the tips of the dendrites, the last stage solidification is equally important from the point of view of defect formation (porosity, hot tearing), mechanical strength build-up and precip ...

2006

Both ultrashort echo-time STEAM and MEGA-PRESS-edited spectroscopy were used to validate noninvasive quantification of vitamin C (ascorbate) in the developing rat brain, where changes in ascorbate concentration have been reported. Despite strong overlap wi ...

Wiley-Blackwell2006

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The invention relates to an effusing source for film deposition made of a reservoir comprising one hole characterized by the fact that the hole diameter is less than one order of magnitude than the mean free path of the molecules determined by the pressure ...

ECOLE POLYTECHNIQUE FEDERALE LAUSANNE (ECOL-Non-standard) BENVENUTI G (BENV-Individual) AMOROSI S (AMOR-Individual) HALARY-WAGNER E (HALA-Individual)2002

The charge "belonging" to a given atom in a condensed system is not a measurable quantity, and can be defined only by means of some arbitrary model and/or theory: the static dipole (or multipole) associated with a given molecule in a molecular solid or liq ...

2002

This study has characterized the energetics of both the liquid state and the solid state of two commercially available epoxy resins: a DGEBA- and a TGMDA-based epoxy system. The surface properties of the liquid epoxies were evaluated by wetting measurement ...

2001

Local probe microscopy on lipid membranes

Many fundamental processes that govern the function of biological cells occur on or immediately under the cell membrane. Fluorescence marking of specific sites has had a large impact in the recognition of these processes. In addition, observation in an app ...

EPFL2000

High-performance liquid chromatography of the renal blood flow marker p-aminohippuric acid (PAH) and its metabolite N-acetyl PAH improves PAH clearance measurements

Pierre Vogel

PAH (N-(4-aminobenzoyl)glycin) clearance measurements have been used for 50 years in clinical research for the determination of renal plasma flow. The quantitation of PAH in plasma or urine is generally performed by colorimetric method after diazotation re ...

1997