Concept

Conservation in situ

Publications associées (47)

Discontinuously reinforced titanium matrix composites for fusion applications

We have reinforced alpha-Ti with different contents of TiC particles using the in situ technique and conventional casting. Compositional and microstructural characterization of the TiC/Ti composite material was made by XRD and SEMEDS. Tensile tests at RT, ...

2002

Trifluoromethyl-substituted pyridines through displacement of iodine by in situ generated (trifluoromethyl)copper

Fabrice Cottet

A literature method reported for the prepn. of trifluoromethyl substituted benzenes from iodobenzene and congeners was successfully extended to the pyridine series. 2-Iodopyridines can be converted into 2-(trifluoromethyl)pyridines almost quant. by displac ...

2002

On detection of the Fermi edge in in situ grown thin films of high-T-c oxides

Giorgio Margaritondo, Davor Pavuna, Mike Abrecht

We discuss our systematic series of experiments on the photoelectric detection of the Fermi edge using a cylindrical mirror analyser on films of high-T-c oxides. grown in situ by pulsed laser ablation. The Fermi edge (comparable to the edge of the referenc ...

2001

In-situ OH kinetics study providing an indicator for ozone formation limitation

Hubert van den Bergh, Bertrand Calpini, Alain Clappier

Hydroxyl radicals dominate daytime tropospheric chem., responsible for reactive removal of most trace gases (e.g., volatile org. compds.[VOC]), and is an active participant in the NO and NO2 cycle. Pump-and-probe LIDAR was used to examine the OH- chem. in ...

1999

Mid-infrared spectroscopic monitoring of animal cell culture bioreactor processes

Urs von Stockar, Ian William Marison, Martin Rhiel

Mid-IR (MIR) spectroscopy in combination with partial least-squares (PLS) regression anal. was used to monitor the concns. of glucose, lactate, ammonia, and asparagine in situ during bioreactor cultivation of CHO/SSF3 cells. Simple PLS calibration models w ...

1999

Delivery of antisense oligonucleotides from photopolymerized hydrogels

Jeffrey Alan Hubbell

Antisense oligonucleotides promise to be highly potent therapeutic agents. Nanomolar extracellular concns. of phosphorothioate oligonucleotides have been reported to significantly alter gene expression in cultured cells. (Tidd, 1990). PEG derived hydrogels ...

1993

In situ control of HV cables during commissioning test operation or preventive maintenance using partial discharge reflectometry

Michel Aguet, Michel Ianoz, Pierre Zweiacker

In order to achieve control of HV cables after repair or preventive maintenance measurements should be performed on the installed cables. The authors present numerical studies on the wave reflection in the cable using the EM transients program. They show t ...

1987

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