نتایج جستجو برای: stacking mechanism

تعداد نتایج: 578298  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
Vassili Ivanov Dmitri Piontkovski Giovanni Zocchi

We propose a statistical mechanics model for the melting transition of DNA. Base pairing and stacking are treated as separate degrees of freedom, and the interplay between pairing and stacking is described by a set of local rules which mimic the geometrical constraints in the real molecule. This microscopic mechanism intrinsically accounts for the cooperativity related to the free energy penalt...

2001
H. Ikeda Hideyuki Ikeda Yue Qi Tahir Çagin Konrad Samwer William L. Johnson William A. Goddard

We have studied the initial stage of plastic deformation behavior of metallic nanowire of pure nickel, by using molecular dynamics methods. In these simulations, we applied uniform strain along c-axis at strain rate of 0.5%/100ps, 0.5%/10ps and 0.1%/2ps. We have observed the formation of stacking faults by movement of a partial dislocation, and the development of stacking faults to deformation ...

2017
Chao Xu Taiki Nakata Xiaoguang Qiao Mingyi Zheng Kun Wu Shigeharu Kamado

High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) behavior was analyzed. The plate-shaped LPSO phases stimulate the DRX by particle stimulated nucle...

2015
Enrique Martínez Blas P. Uberuaga

Stacking fault tetrahedra (SFTs) are ubiquitous defects in face-centered cubic metals. They are produced during cold work plastic deformation, quenching experiments or under irradiation. From a dislocation point of view, the SFTs are comprised of a set of stair-rod dislocations at the (110) edges of a tetrahedron bounding triangular stacking faults. These defects are extremely stable, increasin...

1997
Yasushi Shinjo

Object-stacking is a model for structuring object-based systems. The main feature of the object-stacking model is that layers of objects with a uniform interface are constructed, and the functions of these objects are integrated. In object-stacking, ltering functions are converted into objects. By implementing object-stacking in the World Wide Web, several ltering functions scattered all over t...

Journal: :Clinical Journal of the American Society of Nephrology 2007

2013
Guochang Liu Sergey Fomel Long Jin Xiaohong Chen

Stacking plays an important role in improving signal-to-noise ratio and imaging quality of seismic data. However, for low-fold-coverage seismic profiles, the result of conventional stacking is not always satisfactory. To address this problem, we have developed a method of stacking in which we use local correlation as a weight for stacking common-midpoint gathers after NMO processing or common-i...

Journal: :Computational Materials Science 2021

Partial stacking faults (PSFs) have been frequently observed inside {101-1} and {101-2} twins in hexagonal close-packed (HCP) metals. Formation of PSFs, first described by Song Gray, only displaces atoms on every other basal plane, stark contrast to conventional SFs created Shockley partial dislocations which a global displacement vector can be defined. To experimentally verify this process is ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید