نتایج جستجو برای: concentration volume fractal model

تعداد نتایج: 2693213  

Files are the most important sources of information presenting in various formats such as texts, audio, video, images, web pages, etc. …; (in-depth) analysis of files for the purpose of recognition and investigating their unique properties (or characteristics) is one of the most significant issues in the field of personal security safety, information security, file-type identification, codes st...

2006
Andrea Gabrielli Andrea Baldassarri Miguel Angel Muñoz Bernard Sapoval

We present a two-dimensional theoretical model for the slow chemical corrosion of a thin film of a disordered solid by suitable etching solutions. This model explain different experimental results showing that the corrosion stops spontaneously in a situation in which the concentration of the etchant is still finite while the corrosion surface develops clear fractal features. We show that these ...

M.R Majdzadeh Tabatabai S.H Ghoreishi

Sediment flushing of reservoirs is an operational technique, whereby previously accumulated sediments in the reservoirs are hydraulically removed by accelerated flow when the bottom desiltingoutlets of the dam are opened. In this research, the process of sediment flushing is simulated by a three dimensional numerical model in which sediment and flow interaction are reflected in the reservoirs. ...

2006
W. K. Chiu

Purpose – Fractal geometry can be used to model natural objects which cannot be easily represented by the euclidean geometry. However, contemporary computer-aided design (CAD) and computer-aided manufacturing (CAM) systems cannot be used to model a fractal object efficiently. In a general layer manufacturing (LM) workflow, a model described by the euclidean geometry is required in order to gene...

Journal: :Biophysical journal 2002
Hugues Berry

Conventional equations for enzyme kinetics are based on mass-action laws, that may fail in low-dimensional and disordered media such as biological membranes. We present Monte Carlo simulations of an isolated Michaelis-Menten enzyme reaction on two-dimensional lattices with varying obstacle densities, as models of biological membranes. The model predicts that, as a result of anomalous diffusion ...

Journal: :J. Artif. Intell. Res. 2010
Alexander Feldman Gregory M. Provan Arjan J. C. van Gemund

Model-based diagnostic reasoning often leads to a large number of diagnostic hypotheses. The set of diagnoses can be reduced by taking into account extra observations (passive monitoring), measuring additional variables (probing) or executing additional tests (sequential diagnosis/test sequencing). In this paper we combine the above approaches with techniques from Automated Test Pattern Generat...

2010
Zhixiong Lu Lanying Zhao Xiaoqin Li Jun Yuan

The fractal interpolation theory was used to the research of road surface roughness, and its simulating method was proposed through the piecewise fractal model. The fractal interpolation model was established for the actual road surface roughness, its influential factors and their laws of influencing were also analyzed, and then the model accuracy was confirmed by the fractal parameters and the...

Journal: :Applied sciences 2021

Aggregation always occurs in industrial processes with fractal-like particles, especially dense systems (the volume fraction, ϕ>1%). However, the classic aggregation theory, established by Smoluchowski 1917, cannot sufficiently simulate particle dynamics systems, particularly those of generat ed particles. In this article, Langevin dynamic was applied to study collision rate aggregations as ...

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