scholarly journals Comparative analysis of designing wall panels with hole based on one-dimensional and two-dimensional computer models

2018 ◽  
Vol 456 ◽  
pp. 012082
Author(s):  
Zh S Nuguzhinov ◽  
S К Аkhmediyev ◽  
B S Donenbayev ◽  
A Yu Кurokhtin ◽  
О Khabibolda
Keyword(s):  
Comparative Analysis ◽  
Computer Models ◽  
Two Dimensional ◽  
One Dimensional ◽  
Wall Panels

Investigation of two-dimensional nonstationary processes of outflow a gas-saturated liquid from axisymmetric vessels

2012 ◽  
Vol 9 (1) ◽  
pp. 47-52
Author(s):  
R.Kh. Bolotnova ◽  
V.A. Buzina
Keyword(s):  
Comparative Analysis ◽  
Numerical Model ◽  
Liquid Mixture ◽  
Phase Model ◽  
Test Problems ◽  
Two Dimensional ◽  
Nonstationary Processes ◽  
Saturated Liquid ◽  
Two Phase ◽  
One Dimensional

The two-dimensional and two-phase model of the gas-liquid mixture is constructed. The validity of numerical model realization is justified by using a comparative analysis of test problems solution with one-dimensional calculations. The regularities of gas-saturated liquid outflow from axisymmetric vessels for different geometries are established.

Comparative Analysis of One-Dimensional and Two-Dimensional Cantilever Piezoelectric Energy Harvesters

2014 ◽  
Vol 1 (3-4) ◽  
Author(s):  
Nathan Sharpes ◽  
Abdessattar Abdelkefi ◽  
Shashank Priya
Keyword(s):  
Comparative Analysis ◽  
Excitation Frequency ◽  
Low Frequency ◽  
Ambient Vibration ◽  
Two Dimensional ◽  
One Dimensional ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
Resonance Frequencies ◽  
Tip Mass

AbstractA long-standing encumbrance in the design of low-frequency energy harvesters has been the need of substantial beam length and/or large tip mass values to reach the low resonance frequencies where significant energy can be harvested from the ambient vibration sources. This need of large length and tip mass may result in a device that is too large to be practical. The zigzag (meandering) beam structure has emerged as a solution to this problem. In this letter, we provide comparative analysis between the classical one-dimensional cantilever bimorph and the two-dimensional zigzag unimorph piezoelectric energy harvesters. The results demonstrate that depending upon the excitation frequency, the zigzag harvester is significantly better in terms of magnitude of natural frequency, harvested power, and power density, compared to the cantilever configuration. The dimensions were chosen for each design such that the zigzag structure would have 25.4×25.4 mm

A Method of Color Detection Base on Xy-H

2012 ◽  
Vol 263-266 ◽  
pp. 525-528
Author(s):  
Hua Yun Yu ◽  
Meng Yun Liu
Keyword(s):  
Comparative Analysis ◽  
Skin Color ◽  
Color Space ◽  
Distribution Area ◽  
Two Dimensional ◽  
Threshold Segmentation ◽  
One Dimensional ◽  
Skin Color Detection ◽  
Color Detection

In order to improve the accuracy and speed of the color detection, to comparative analysis on skin color detection in the clustering of nine color space and regularity of distribution area, and some meaningful conclusions are discovered that the XYZ color space is suitable to do skin color two-dimensional threshold segmentation while the HSV、HIS、HSL is suitable to do one-dimensional threshold segmentation on tonal H component. A new color space xy-H is constructed for color detection using those conclusions which were discovered. The results show that it has significantly improved for color diction.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

State-of-the-Art of Modeling Surface Water Impoundments

1982 ◽  
Vol 14 (1-2) ◽  
pp. 241-261 ◽  
Author(s):  
P A Krenkel ◽  
R H French
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
State Of The Art ◽  
Rate Coefficients ◽  
Two Dimensional ◽  
One Dimensional ◽  
Integral Energy ◽  
Range Of Values ◽  
Dimensional Integral ◽  
Water Impoundment

The state-of-the-art of surface water impoundment modeling is examined from the viewpoints of both hydrodynamics and water quality. In the area of hydrodynamics current one dimensional integral energy and two dimensional models are discussed. In the area of water quality, the formulations used for various parameters are presented with a range of values for the associated rate coefficients.

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