نتایج جستجو برای: stacking mechanism

تعداد نتایج: 578298  

2001
B. Lu Jie Zou David N. Lambeth David E. Laughlin

Stacking faults in CoCrTa/Cr, CoCrPt/NiAl, and CoCrPt/Cr/NiAl films have been studied by electron diffraction. Interfacial lattice match and epitaxial growth play important roles in reducing the stacking fault density. It is found that the bicrystal media has large stacking fault densities. In the unicrystal media case, when good epitaxy between magnetic layer and underlayer cannot be achieved,...

2001
Bo Bian Wei Yang David E. Laughlin David N. Lambeth

Stacking faults in (1010) unicrystal Co and Co-alloy thin films have been analyzed by the electron diffraction technique. As predicted no diffraction contrast of stacking faults could be observed when the beam is parallel to the [1010] direction. However, both by plan-view TEM observation and electron diffraction along the [1120] direction reveal that the stacking fault density in biased pure C...

1998
C. Stampfl Chris G. Van de Walle

Basal-plane stacking faults in wurtzite AlN, GaN, and InN are studied using density-functionalpseudopotential calculations. The formation energies follow the trend exhibited for the zinc-blende/wurtzite energy differences in the bulk materials, namely, lowest energy for GaN and highest for AlN. Type-I stacking faults have the lowest energy, followed by type-II stacking faults, and finally extri...

Journal: :Journal of the American Chemical Society 2010
Yong Ding Fengru Fan Zhongqun Tian Zhong Lin Wang

Using a two-step seed-mediated growth method, we synthesized bimetallic nanoparticles (NPs) having a gold octahedron core and a palladium epitaxial shell with controlled Pd-shell thickness. The mismatch-release mechanism between the Au core and Pd shell of the NPs was systematically investigated by high-resolution transmission electron microscopy. In the NPs coated with a single atomic layer of...

Journal: :Intell. Data Anal. 2010
Agapito Ledezma Ricardo Aler Araceli Sanchis Daniel Borrajo

Stacking is a widely used technique for combining classifier and improving prediction accuracy. Early research in Stacking showed that selecting the right classifiers their parameters and the meta-classifier was a critical issue. Most of the research on this topic hand picks the right combination of classifier and their parameters. Instead of starting from these initial strong assumptions, our ...

1995
Yasushi Shinjo Satoshi Zakimi Seiki Kyan

Object-stacking is a model for structuring object based systems. The main feature of object-stacking is that layers of objects with a uniform interface are constructed, and the functions of these objects are integrated. The effectiveness of object-stacking has been shown for file systems of distributed operating systems. This paper presents the application of the object-stacking model to the Wo...

Journal: :The EMBO journal 1999
J Shorter R Watson M E Giannakou M Clarke G Warren F A Barr

We have identified a 55 kDa protein, named GRASP55 (Golgi reassembly stacking protein of 55 kDa), as a component of the Golgi stacking machinery. GRASP55 is homologous to GRASP65, an N-ethylmaleimide-sensitive membrane protein required for the stacking of Golgi cisternae in a cell-free system. GRASP65 exists in a complex with the vesicle docking protein receptor GM130 to which it binds directly...

Journal: :علوم و تکنولوژی پلیمر 0
مجتبی صدیقی سهیل داریوشی

during the last decades a new class of materials named fiber/metal laminates (fmls) was introduced. it is a hybrid composite consisting of alternating thin layers of metal sheets and fiber-reinforced composite material. fmls have both low weight and good mechanical properties. in this study, the impact behavior of this attractive material is investigated. the effect of fiber angle, stacking seq...

2006
Anirban Sain Jeff Z.Y. Chen Bae-Yeun Ha

The chain persistency of single-stranded (ss) DNA at a high-salt limit mainly arises from the so-called base-stacking interaction between consecutive bases along the strand. Stacking is appreciable for purine–purine (e.g., A–A) and purine–pyrimidine stacks (e.g., A–T), but it is weak for pyrimidine stacks (i.e., T–T, T–C, and C–C). We study how base stacking can stiffen the strand by classifyin...

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