منابع مشابه
Analysing Friedel averages and differences.
Various practical applications of the average (A) and difference (D) of Friedel opposites are described. Techniques based on the resonant-scattering contribution to Friedel differences are applied to see whether a crystal is centrosymmetric or not, and to determine the point group of the crystal. For the validation of a structural study, plots of A(obs) against A(model), and D(obs) against D(mo...
متن کاملTiGePt--a study of Friedel differences.
The X-ray single-crystal diffraction intensities of the intermetallic compound TiGePt were analysed. These showed beyond doubt that the crystal structure is non-centrosymmetric. The analysis revolves around the resonant-scattering contribution to differences in intensity between Friedel opposites hkl and \bar h\bar k\bar l. The following techniques were used: R(merge) factors on the average (A)...
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Nowadays, it is not uncommon that organisations maintain repositories containing hundreds or thousands of business process models. For the purpose of searching such a repository for models that are similar to a query model, many similarity measures have been suggested in the literature. Other measures have been suggested for different purposes like measuring compliance between a model and a ref...
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Developers of high-performance algorithms for hard computational problems increasingly take advantage of automated algorithm configuration tools, and consequently often create solvers with many parameters and vast configuration spaces. However, there has been very little work to help these algorithm developers answer questions about the high-quality configurations produced by these tools, speci...
متن کاملAnalysing differences in clinical outcomes between hospitals.
OBJECTIVE To examine the variation between hospitals in rates of severe intraventricular haemorrhage (IVH) in preterm babies adjusting for case mix and sampling variability. DESIGN Cross sectional study of pooled data from 1995 to 1997. SETTING 24 neonatal intensive care units (NICUs) in the Australian and New Zealand Neonatal Network. PARTICIPANTS 5413 infants of gestational age 24-30 we...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2012
ISSN: 0108-7673,1600-5724
DOI: 10.1107/s0108767312034885