نتایج جستجو برای: law index

تعداد نتایج: 555859  

2010
Michael S. Barton

The purpose of this paper is to demonstrate the validity of mesoscale numerical weather prediction modeling near the complex terrain at Aubrey Cliffs, Arizona, and to investigate the influence of the outer domain size employed on the computational results. Mesoscale Modeling v5 (MM5) was implemented to produce numerical wind data that was compared with experimental wind data. The results obtain...

2018
E. P. Bowyer V. V. Krylov

In this paper, the results of the first experimental investigation into sound radiation of rectangular plates containing tapered indentations of power-law profile are reported. Such tapered indentations materialise two-dimensional acoustic black holes for flexural waves in plates that result in absorption of a large proportion of the incident wave energy. A multiindentation plate was compared t...

1998
Thomas P. Bronez Elizabeth S. Hughes Michael F. Brock

The views, opinions and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official Government position, policy, or decision, unless designated by other documentation. Approved for public release; distribution unlimited. Abstract Content-based retrieval of images and video is examined in the context of national security applications (defens...

2009
Shu-Heng Chen Yu-Hsiang Yang Wen-Jen Yu

The purpose of this study is to investigate the characteristics of international literature using Agent-Based Modeling (ABM) in SSCI during 1997-2008. The results of this study reveal the fact that the growth of international literature using ABM is still well perceived. Most of the literature came from various institutions in USA. However, non-American authors including those from Taiwan, Ital...

2008
Masashi Tomoyose Atushi Ishikawa

By using numerical simulation, we confirm that Takayasu–Sato–Takayasu (TST) model which leads Pareto’s law satisfies the detailed balance under Gibrat’s law. In the simulation, we take an exponential tent-shaped function as the growth rate distribution. We also numerically confirm the reflection law equivalent to the equation which gives the Pareto index μ in TST model. Moreover, we extend the ...

2005
B. T. Draine

Solid particles with the composition of interstellar dust and power-law size distribution dn/da ∝ a−p for a ≤ amax with amax & 3λ and 3 < p < 4 will have submm opacity spectral index β(λ) ≡ d lnκ/d ln ν ≈ (p−3)βism, where βism ≈ 1.7 is the opacity spectral index of interstellar dust material in the Rayleigh limit. For the power-law index p ≈ 3.5 that characterizes interstellar dust, and that ap...

Journal: :Expert Syst. Appl. 2012
Guang-Feng Deng Woo-Tsong Lin

To build awareness of the development of ant colony optimization (ACO), this study clarifies the citation and bibliometric analysis of research publications of ACO during 1996–2010. This study analysed 12,960 citations from a total of 1372 articles dealing with ACO published in 517 journals based on the databases of SCIE, SSCI and AH&CI, retrieved via the Web of Science. Bradford Law and Lotka’...

Journal: :journal of agricultural science and technology 2010
s. khodayari y. fathipour k. kamali b. naseri

seasonal activity and spatial distribution of eoteranychus frosti mcgregor, tydeus longisetosus (elbagouy and momen) and zetzellia mali ewing were studied during 9th july to 22th october 2006 in an unsprayed apple orchard, maragheh region, northwest of iran. also the density dependence interaction between preys and predator was assessed. to estimate the spatial distribution pattern of these spe...

2005
Xiao Qin

Johansen and Sornette proposes that the crash has fundamentally an endogenous origin and exogenous shocks only serve as triggering factors. This endogenous force is shown in price as power law log-periodicity (PLLP) signature prior to a crash. We estimate the highly nonlinear model developed by them using a hybrid approach which combines scatter search, genetic adaptor and tabu search. The mode...

1997
Mark D. Leising Dieter H. Hartmann James D. Kurfess Philip Blanco Dipen Bhattacharya

Abstract. We report the results of extracting the hard X-ray continuum spectrum of Cas A SNR from RXTE/PCA Target of Opportunity observations (TOO) and CGRO/OSSE observations. The data can rule out the single thermal bremsstrahlung model for Cas A continuum between 2 and 150 keV. The single power law model gives a mediocre fit (∼5%) to the data with a power-law index, Γ = 2.94±0.02. A model wit...

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