نتایج جستجو برای: structure parameter

تعداد نتایج: 1753832  

Journal: :Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena 2011

1998
Charles W. Johnson

We examine saturation properties of a quark-based picture of nuclear matter. Soliton matter consisting of nonlocal confining solitons is used to model nuclear matter. Each composite nucleon is described by a non-topological soliton as given by the Global Color Model. We apply techniques and concepts from the description of crystal lattices. In particular, the Wigner-Seitz approximation is used ...

2013
V. V. Strijov M. P. Kuznetsov A. A. Tokmakova

This paper presents deterministic and stochastic algorithms of the structure parameters estimation for the model selection problem. Structure parameters optimization for linear and non-linear models is investigated. The optimized error function is inferred from statistical hypothesis on the model parameter distributions. Analytic algorithms are based on the error function derivatives estimation...

1998
Xuesheng Bai Guangyou Xu Yuanchun Shi

Similarity Indexing is very important for content-based retrieval on large multimedia databases, and the "tightness" of data set envelope is a factor that influences the performance of index. For equidistant envelope (bounding sphere), calculation of envelope is somewhat difficult because of the complexity of direct computation in high dimension space. In this paper we summarize the envelope us...

Journal: :Journal of Cosmology and Astroparticle Physics 2014

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

This study investigates the effect of material parameters of the Gurson-Tvergaard-Needleman (GTN) model on the failure prediction of cellular structures. The effect of elastic modulus, calibration parameter of GTN model, isotropic hardening, fracture strain, and strut diameter on the load-displacement curve of a lattice structure fabricated by Selective Laser Melting (SLM) has been studied by u...

جدی‌چروده, مهناز, ذوالفقارپور, فرهاد, موسوی, میرحمید,

 In this paper, we calculate nuclear structure function and EMC effect of 40Ca and 56Fe nuclei. To achive the goals, we consider Fermi motion and binding energy contrbiution in the harmonic oscillator model. In this model, harmonic oscillator parameter ħω related to shells root mean square radius and for free nucleon structure functions, is obtained from GRV’s free nucleon structure functions. ...

Journal: :international journal of marine science and engineering 2013
a. r. bakhtiari m. fathi moghadam

this paper presents an experimental study the influence of wave parameter on the damage of reshaping seawall, model tests have been performed in several water level conditions. the experiments of physical modeling of this research have been done in the flume of the soil conservation and watershed management research institute (scwmri). the waves applied to the structure model are irregular and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید