نتایج جستجو برای: materials preparation

تعداد نتایج: 594351  

2014
Yan Zhou Junyan Zhang Gang Su Jiangong Li

The morphology of tetrahexahedral nanocrystals could be understood on the basis of a hypothesis that the atoms or molecules on or near spherical surfaces can migrate till reaching their equilibrium positions. Such migration of atoms/molecules is shown to be closely related to the formation of high-index surfaces in nanopolyhedrons. On account of this hypothesis, a theoretical calculation about ...

2013
Timothy P. Lillicrap Pablo Moreno-Briseño Rosalinda Diaz Douglas B. Tweed Nikolaus F. Troje Juan Fernández-Ruiz

The control problem studied here is schematized in Supplementary Figure 1 and works as follows: the agent is presented with a visual target presented on a fixed 2D plane. Given the perceived location of the target the agent must then try to touch it. To keep the simulations simple, the attempt to strike the target is open loop (i.e. the agent is not able to modify their choice in mid-flight) an...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Zeinab Sadjadi MirFaez Miri

We study photon diffusion in a two-dimensional random packing of monodisperse disks as a simple model of granular material. We apply ray optics approximation to set up a persistent random walk for the photons. We employ Fresnel's intensity reflectance with its rich dependence on the incidence angle and polarization state of the light. We present an analytic expression for the transport-mean-fre...

2015
Efrem Braun Joseph J Chen Sondre K Schnell Li-Chiang Lin Jeffrey A Reimer Berend Smit

Molecular simulations and NMR relaxometry experiments demonstrate that pure benzene or xylene confined in isoreticular metal-organic frameworks (IRMOFs) exhibit true vapor-liquid phase equilibria where the effective critical point may be reduced by tuning the structure of the MOF. Our results are consistent with vapor and liquid phases extending over many MOF unit cells. These results are count...

2012

SUPPLEMENTAL MATERIALS & METHODS: TABLE OF CONTENTS I. PRIMARY DATA GENERATION .........................................................................................3 Cell Culture and Cell Lines Assayed .....................................................................................................................................3 Sub-cellular Fractionation and RNA Isolation (CSHL)......

2012
Xu Jianguo

In this paper, a generalized self-consistent scheme, or “three phase model”, is used to set up a micro-mechanics model for rough surface contact with randomly distributed asperities. The dimensionless average real pressure p is obtained as function of the ratio of the real contact area to the apparent contact area, 0 / A Ar . Both elastic and plastic materials are considered, and the influence ...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2016
Christof Holliger Madalena Alves Diana Andrade Irini Angelidaki Sergi Astals Urs Baier Claire Bougrier Pierre Buffière Marta Carballa Vinnie de Wilde Florian Ebertseder Belén Fernández Elena Ficara Ioannis Fotidis Jean-Claude Frigon Hélène Fruteau de Laclos Dara S M Ghasimi Gabrielle Hack Mathias Hartel Joern Heerenklage Ilona Sarvari Horvath Pavel Jenicek Konrad Koch Judith Krautwald Javier Lizasoain Jing Liu Lona Mosberger Mihaela Nistor Hans Oechsner João Vítor Oliveira Mark Paterson André Pauss Sébastien Pommier Isabella Porqueddu Francisco Raposo Thierry Ribeiro Florian Rüsch Pfund Sten Strömberg Michel Torrijos Miriam van Eekert Jules van Lier Harald Wedwitschka Isabella Wierinck

Production of biogas from different organic materials is a most interesting source of renewable energy. The biomethane potential (BMP) of these materials has to be determined to get insight in design parameters for anaerobic digesters. Although several norms and guidelines for BMP tests exist, inter-laboratory tests regularly show high variability of BMPs for the same substrate. A workshop was ...

2009
E. Lindner M. Becker S. Brückner Y. Wang M. Rothhardt H. Bartelt

The inscription of fiber Bragg gratings with femtosecond laser radiation gives access to a wide range of new materials beyond conventional UV-photosensitive and special hydrogen loaded materials. We have therefore investigated the use of an interferometric technique in combination with UV femtosecond laser pulses to generate fiber Bragg gratings in different types of fibers. Additionally, the t...

Journal: :Journal of hazardous materials 2009
Qiyuan Xie Heping Zhang Ruibo Ye

The objective of this work is to quantitatively study the burning characteristics of thermoplastics. A new experimental setup with a T-shape trough is designed. Based on this setup, the loop mechanism between the wall fire and pool fires induced by the melting and dripping of thermoplastic can be well simulated and studied. Additionally, the flowing characteristics of pool fires can also be qua...

2016
L. Pel P. A. J. Donkers K. Kopinga J. J. Noijen

A set-up especially designed for semi-simultaneous measurements of 1H, 23Na and 35Cl in ordinary cementitious materials using nuclear magnetic resonance was built. This setup makes use of the main field of a whole body magnetic resonance imaging system (Philips Intera), which has allowed us to combine two measurement setups into one, i.e., a 23Na/35Cl and a 1H insert. This 1.5 T field was chose...

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