نتایج جستجو برای: crystal network

تعداد نتایج: 824911  

Journal: :Computational Materials Science 2021

For successful applications of machine learning in materials informatics, it is necessary to overcome the inaccuracy predictions ascribed insufficient amount data. In this study, we propose a transfer using crystal graph convolutional neural network (TL-CGCNN). Herein, TL-CGCNN pretrained with big data such as formation energies for structures, and then used predicting target properties relativ...

Journal: :Smart Materials and Structures 2022

Abstract We present a method to structure liquid crystal network actuators based on selectively polymerizing the without any physical or hard masks in process compatible with microelectromechanical system (MEMS) technology. The standard glass-cell filling technique is used generate actuator films; subsequently, selected areas are exposed light and thus polymerized actuators. No further machinin...

Journal: :journal of sciences islamic republic of iran 0

calcium dichloride tetra urea was prepared by the reaction of calcium chloride with urea in aqueous solution. the crystals are monoclinic, a= 7.633, b= 12.45 1, c= 8.118 ?,? = 113.17, z = 4, space group p 2,/a. the crystal structure was determined by single crystal x-ray methods and refined to r= 0.041. the calcium atoms are coordinated to four oxygen atoms of urea and to two chloride ions. the...

2002
AUBREY Z MHLONGO MICHAEL J ALPORT

This paper discusses the development of a system for the automated real-time measurement of crystal size distributions during crystallisation. An optimised selection of the Daubechies wavelet coefficients is used as input to a Multi–Layer Perceptron artificial neural network to characterise the crystal scale lengths. This technique gives significant advantages over the sampling-based measuremen...

2010

20 IMR KINKEN Research Highlights 2009 Future Energy / Environmental Materials By systematic crystal structure refinements of characteristic superconductor, FeSe1-xTex (x= 0.5, 0.625, 0.75, 0.875) and FeSe by the powder neutron diffraction technique, we studied the relationship between crystal structre and superconductivity. In this work, we found the role of Fe-X network (X; calcogens, pnictog...

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