نتایج جستجو برای: crystal size

تعداد نتایج: 706717  

2012
Minoru Watanabe Georgiy V. Tkachenko

Recently, the technologies related to liquid crystal spatial light modulators have progressed dramatically [1]–[4]. Such modulators are classifiable as two types: transmissive and reflective. Both types are used widely for various applications, e.g. liquid crystal television panels, personal computer displays, and projector systems. In particular, the resolution of the latest liquid crystal spa...

1997
W. H. Smith S. Dasu M. Jaworski J. Lackey

For most of the CMS ECAL, a 6 crystal by 6 crystal array of physical calorimeter towers is mapped into trigger towers. There is a 1:1 correspondence between the HCAL and ECAL trigger towers. The trigger tower size is equivalent to the HCAL physical towers, .087 x .087 in η x φ. The φ size remains constant in ∆φ and the η size remains constant in ∆η out to an η of 2.1, beyond which the η size do...

2011
Oleg E. Melnik Jonathan D. Blundy Alison C. Rust Duncan D. Muir

The confi guration of subvolcanic magma storage regions exercises a fundamental control on eruptive style and hazard. Such regions can be imaged remotely, using seismic, geodetic, or magnetotelluric methods, although these are far from routine and rarely unambiguous. The textures of erupted volcanic rocks, as quantifi ed through crystal size distributions (CSD), provide spaceand time-integrated...

Journal: :The European physical journal. E, Soft matter 2011
J L Carvalho K Dalnoki-Veress

The division of semi-crystalline polymeric material into small domains is an effective tool for studying crystal nucleation. The scaling behavior of the nucleation rate as a function of domain size can reveal important information about the mechanism responsible for the birth of a crystal nucleus. We have investigated the process of crystal nucleation in a system of dewetted polyethylene drople...

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2015
Sinisa Dj Mesarovic Samuel Forest Jovo P Jaric

In the light of recent progress in coarsening the discrete dislocation mechanics, we consider two questions relevant for the development of a mesoscale, size-dependent plasticity: (i) can the phenomenological expression for size-dependent energy, as quadratic form of Nye's dislocation density tensor, be justified from the point of view of dislocation mechanics and under what conditions? (ii) ho...

2003
K. D. Finkelstein Ivan Bazarov Jeffrey White Peter Revesz

We have measured electron and positron beam source size at CHESS when the Cornell Electron Storage Ring (CESR) is run dedicated for the production of synchrotron radiation. Horizontal source size at several beamlines is expected to shrink by a factor of two but synchrotron (visible) light measurements only provide the vertical size. Therefore a “crystal collimator” using two Bragg reflection in...

Journal: :Physical review letters 1988
Golemme Zumer Allender Doane

Journal: :Chemistry 2007
Sung Hwa Jhung Taihuan Jin Young Kyu Hwang Jong-San Chang

Microporous materials, such as silicalite-1 and VSB-5 molecular sieves, have been synthesized by both microwave irradiation (MW) and conventional electric heating (CE). The accelerated syntheses by microwave irradiation can be quantitatively investigated by various heating modes conducted in two steps such as MW-MW, MW-CE, CE-MW, and CE-CE (in the order of nucleation-crystal growth). In the cas...

Journal: :Lab on a chip 2012
Jaime J Juárez Pramod P Mathai J Alexander Liddle Michael A Bevan

We report a feedback control method to precisely target the number of colloidal particles in quasi-2D ensembles and their subsequent assembly into crystals in a quadrupole electrode. Our approach relies on tracking the number of particles within a quadrupole electrode, which is used in a real-time feedback control algorithm to dynamically actuate competing electrokinetic transport mechanisms. P...

2004
H. SEKIYA

We have carried out the dark matter search with a 116g direction-sensitive stilbene crystal in Kamioka Observatory. With the crystal fixed to the earth, we searched the modulation of the light output. No modulation signal was found due to the small size of the detector crystal and the higher background rate yet to be eliminated. However, it demonstrated the effectiveness of the method of direct...

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