Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.
DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.
Osteoblasts exhibit a more differentiated morphol. on surfaces with rough microtopogs. Surface effects are often mediated through integrins that bind the RGD motif in cell attachment proteins. Here, we tested the hypothesis that modulating access to RGD bi ...
Irradiation-induced segregation mechanisms are classified into solute-point-defect complex type and inverse Kirkendall type. For solutes that have a strong interaction with interstitials in a dilute alloy, the complex effect plays an important part in the ...
During the prepn. of AsBr4+[Al(OR)4]-, the novel carbocation CS2Br3+ was synthesized by reaction of AsBr3, Br2, CS2, and Ag[Al(OR)4] (R=C(CF3)3). CS2Br3+ [Al(OR)4]- was characterized by its crystal structure, NMR and IR spectroscopy, and quantum chem. calc ...
Red tetragallanediide Na2Ga4R4.2THF (R = SitBu3) was prepd. by redn. of the monogallane RGaCl2.THF in heptane or the tetrahedro-tetragallane R4Ga4 in benzene/THF with sodium at 100 Deg. Potassium worked analogously as a redn. agent. As an intermediate ...
We present a study on the improvement of the external Quantum Efficiency (QE) of Gallium-Nitride-based Light Emitting Diodes (LEDs) by the use of the Single Mirror (SMLED) design [N.E.J. Hunt et al., Electron. Lett. 28, 2169 (1992)]. Three different substr ...
Gallium impurities affect the atomic processes and material properties of aluminum metal to a high degree. Various ab initio calculations have been performed on a Sigma = 11 (113) symmetric tilt boundary in aluminum with and without some gallium substituti ...
In-situ reflectivity measurements of the growth surface during deposition in a Hydride Vapor Phase Epitaxy system are presented. The GaN growth rate increases linearly with the HCl flow and increases monotonically with the ammonia flow. Following the repla ...
We demonstrate edge-emitting lasers based on self-assembled InAs quantum dots (QDs) on GaAs substrates. The InAs QDs are embedded in an InGaAs quantum well (QW) to red-shift the lasing transition. The lasers emit at lambda=1.2 mum with threshold current de ...
The invention concerns a monocrystalline coating crack-free coating of gallium nitride or mixed gallium nitride and another metal, on a substrate likely to cause extensive stresses in the coating, said substrate being coated with a buffer layer, wherein: a ...
The C-13-{H-1} NMR spectra of two monofluorinated nematic liquid crystals, I35 and I52, have been obtained and analysed to yield sets of dipolar couplings, D-iF, from each carbon in the molecule to the fluorine nucleus. The couplings involving carbons in t ...
