نتایج جستجو برای: ion cyclotron resonance apoptosis
تعداد نتایج: 570226 فیلتر نتایج به سال:
Ion implantation of 0 into Al and growth of Al(0) layers using electron-cyclotron resonance plasma and pulsed laser depositions produce composite alloys with a high density of nanometersize oxide precipitates in an Al matrix. The precipitates impart high strength to the alloy and reduced adhesion during sliding contact, while electrical conductivity and ductility are retained. Implantation of N...
Fundamental concepts of high-resolution mass spectrometry as it relates to the issue of accurate mass measurements are presented. Important issues speciÐc to magnetic sector instruments, Fourier transform ion cyclotron resonance and time-of-Ñight (TOF) methods are discussed. Recent high-resolution TOF measurements on peptides and proteins, ionized by matrix-assisted laser desorption/ionization ...
n the framework of the ion cyclotron resonance frequency (ICRF) heating development at CEA Cadarache, a prototype antenna based on the load-resilient electrical layout foreseen for ITER has been built. This prototype was recently tested in Tore Supra. The ITER-like electrical scheme has been validated during fast perturbations at the edge plasma. Clear load resilience properties are reported. M...
The properties of Electron Cyclotron Resonance Ion Sources (ECRIS) plasmas, up to now, have been largely studied on the basis of a global approach. However the design of new generation sources, able to provide high intensity beams of multiply charged ions, requires a more accurate investigation of both electron and ion dynamics. Recent experiments have demonstrated that even slight frequency’s ...
We describe a new mass spectrometric technique that is based on the use of a linear electrostatic ion trap and a newly discovered self-bunching phenomenon. Ions are stored in the trap and their oscillation frequencies are determined by Fourier transform of their oscillation times. Using this system, we demonstrate that it is possible to simultaneously trap several masses and obtain their mass s...
Infrared spectroscopy of gas-phase Cr+ complexes of aniline was studied using the FELIX free electron laser interfaced to a Fourier transform ion cyclotron resonance spectrometer. For both the monomer complex Cr+(aniline) and the dimer complex Cr+(aniline)2 the spectra showed features indicating binding of the metal ion to the aromatic pi cloud, as opposed to the nitrogen atom. Agreement with D...
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