نتایج جستجو برای: nuclear magnetic resonance
تعداد نتایج: 613743 فیلتر نتایج به سال:
Nuclear Magnetic Resonance (NMR) is a spectroscopic technique widely used by organic chemists. NMR provides details about the location, number and environment of specific types of atoms within a sample. The proper interpretation of this information allows detailed chemical structures to be discerned. The same basic instrumentation used in this week’s experiment is used in physician offices when...
Abstract We propose a design, micro fabrication process, and nuclear magnetic resonance (NMR) based evaluation, of field gradient chip. The uni-axial linear z -gradient coil design was computed by stream-function method, with the optimisation goal to exhibit minimum power dissipation. coils were implemented on two bi-planes, which built-up Cu electroplating in combination photo definable dry-fi...
Nuclear magnetic resonance (NMR) is typically thought of as a possible technology for quantum computation. Here we instead outline how commercially available NMR spectrometers could be used to perform non-quantum computation: from addressable 3D memory, to a programmable 3D reaction-diffusion computer.
This article discusses the basic concepts of Magnetic Resonance Imaging (MRI) with the intention to introduce the subject to uninitiated. The MRI technique is a powerful noninvasive probe of the body's internal anatomy. In MRI, the images are produced not by X-rays, but through the use of non-ionizing radiowaves that stimulate transitions between spin states of nuclei in a magnetic field when p...
A H–C frequency-selective REDOR (FS-REDOR) experiment is developed for measuring intramolecular H–C distances in uniformly C, N-labeled molecules. Theory and simulations show that the experiment removes the interfering homonuclear H–H, C–C and heteronuclear H–N, C–N dipolar interactions while retaining the desired heteronuclear H–C dipolar interaction. Our results indicate that this technique, ...
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