Search results for "RAM"
showing 10 items of 35643 documents
CCDC 993834: Experimental Crystal Structure Determination
2014
Related Article: Inguna Goba, Baiba Turovska, Sergey Belyakov, Edvards Liepinsh|2014|J.Mol.Struct.|1074|549|doi:10.1016/j.molstruc.2014.06.044
Methyl Radical in Clathrate Silica Voids. The Peculiar Physisorption Features of the Guest-Host Molecular Dynamics Interaction.
2016
EPR line shape simulations of CH3/SiO2 clathrates and comparison to CH3/N2O and CH3/SiO2 experiments reveal the motional conditions of the CH3 radical up to the unusual regime of its stability, the high-temperature diffusional regime, at 300 K. In the low-temperature region, the CH3 in clathrates is found to rotate around the in-plane axes even at as low temperatures as 3.8 K. However, nonrotating methyls performing only libration about the C2-axes as well as around the C3-axis are also found, proving the existence of special sites in the clathrate voids that begin to accumulate a significant fraction of methyl radicals at temperatures below approximately 7 K. A distinctive feature in the s…
CCDC 1831928: Experimental Crystal Structure Determination
2019
Related Article: Filip Topić, Katarina Lisac, Mihails Arhangelskis, Kari Rissanen, Dominik Cinčić, Tomislav Friščić|2019|Chem.Commun.|55|14066|doi:10.1039/C9CC06735C
Uniformization of two-dimensional metric surfaces
2014
We establish uniformization results for metric spaces that are homeomorphic to the Euclidean plane or sphere and have locally finite Hausdorff 2-measure. Applying the geometric definition of quasiconformality, we give a necessary and sufficient condition for such spaces to be QC equivalent to the Euclidean plane, disk, or sphere. Moreover, we show that if such a QC parametrization exists, then the dilatation can be bounded by 2. As an application, we show that the Euclidean upper bound for measures of balls is a sufficient condition for the existence of a 2-QC parametrization. This result gives a new approach to the Bonk-Kleiner theorem on parametrizations of Ahlfors 2-regular spheres by qu…
Metrics Framework for Cycle-Time Reduction in Software Value Creation
2015
Agile software development methodologies driving cycle-time reduction have been shown to improve efficiency, enable shorter lead times and place a stronger focus on customer needs. They are also moving the process development focus from cost-reduction towards value creation. Optimizing software development based on lean and agile principles requires tools and metrics to optimize against. We need a new set of metrics that measure the process up to the point of customer use and feedback. With these we can drive cycle time reduction and improve value focus. Recently the lean startup methodology has been promoting a similar approach within the startup context. In this paper, we develop and vali…
ADAPT - Advanced Prediction Models for Trajectory-Based Operations (TBO)
2018
An Iranian booklet: non destructive examination by Energy Dispersive X-Ray Diffractometry and Micro-Raman Spectroscopy
2009
Energy Dispersive X-Ray Diffractometry was used in combination with micro-Raman Spectroscopy to study an undated illuminated Iranian booklet. In both cases, no preliminary preparation of the samples was needed: the data were acquired in a non-destructive way in a natural environment. The book is of particular interest because of the unusual presence of miniatures on some pages. The two techniques were used to collect data from small areas of the pages and in different regions of the miniature in order to identify inks and pigments and to attempt chronological assignment. Raman spectra were affected by strong background fluorescence. In spite of this, different peaks were detected and identi…
Assessment of the production costs curve in micro-grids: a comparative analysis
2012
In micro-grids, due to their small scale, there is commonly only one power supplier. A competitive wholesale market hardly exists so the question about how to consider market issues for small producers within micro-grids arises. On the other hand, the specific features of micro-grids where load and generated power hardly find a balance, require that customers take part to regulation issues, maybe using demand response programs. In this paper, price responsive policies and its programs are discussed to answer this question. A case study of a micro-grid with one microturbine and two photovoltaic generators in Italy is analyzed to assess the overall production cost in order to build a price re…
Cluttering: specific communication disorder
2016
The article presents cluttering as understood as a specific communication disorder. Cluttering has received less coverage in the subject literature than stuttering and is comparatively poorly understood. Defining cluttering presents us with a problem due to differences of opinion as to which of the behaviours associated with the disorder are crucial to its diagnosis and which are rather peripheral. Modern approaches to the understanding of cluttering should be based on a neurodevelopmental concept, which has pointed out the importance of understanding the whole symptom formation from genes to behavior. This model has microgenetic theory itself in the backround. It includes distal interactiv…
Assessment of the Inter-Batch Variability of Microstructure Parameters in Topical Semisolids and Impact on the Demonstration of Equivalence
2019
Demonstration of similar microstructure is essential for demonstrating the equivalence of generic topical products since the microstructure of semisolids may affect the drug release. The objective of this study was to compare the microstructure-defining physical parameters of different batches of a reference ointment containing calcipotriol and betamethasone (Daivobet 50 µ