Automatic and Quantitative Measurement of Spectrometer Aberrations in Monochromated EELS

Recent Applications of Sub-20 meV Monochromated STEM-EELS : from Phonon to Core Losses in Real and Momentum Spaces

Ocular Aberrations and their Measurement

As we described in the previous chapter, the first step in the visual process is the formation of an image on the retina by the eye’s optics. Thus, the optical quality of the eye imposes the first limit on spatial vision (Charman, 1983). It has been long known that the normal human eye suffers from many aberrations that degrade retinal image quality (Helmholtz, 1896). As shown in Fig. 1, a poin...

Detection of oxygen sub-lattice ordering in A-site deficient perovskites through monochromated core-loss EELS mapping

Optimized acquisition parameters and statistical detection limit in quantitative EELS.

Optimizing the acquisition parameters for EELS recording has to be accomplished simultaneously from the physical and the statistical points of view; the statistical aspect of the question is covered here. Approximate probability density functions of the variables of interest are derived, which provide a global measure of signal-to-noise ratio taking into account every step of the EELS edge area...

synthesis of sulfides from alcohols and thiols in solvent-freeconditions and deoxygenation of sulfoxides

کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...