Comparative study of experiment and numerical analysis of secondary disasters induced by wood fire in tunnel

2010 ◽  
Vol 16 (4) ◽  
pp. 381-385
Author(s):  
Cai-xia Cheng ◽  
Xin-quan Zhou
Keyword(s):  
Numerical Analysis ◽  
Comparative Study ◽  
Wood Fire ◽  
Secondary Disasters

Numerical analysis and comparative study of short circuit stress in IGBTs devices (IR, IXYS)

2007 ◽  
Vol 47 (9-11) ◽  
pp. 1773-1778 ◽  
Author(s):  
Ly. Benbahouche ◽  
A. Merabet ◽  
A. Zegadi
Keyword(s):  
Numerical Analysis ◽  
Comparative Study ◽  
Short Circuit

Comparative study of stress distribution in Astra and Xive implant systems and in surrounding bone. A numerical analysis

2015 ◽  
Vol 65 (2) ◽  
pp. 108-171
Author(s):  
Daria Basmadji ◽  
Stanisław Kut ◽  
Zdzisław Bereznowski
Keyword(s):  
Numerical Analysis ◽  
Stress Distribution ◽  
Comparative Study ◽  
Surrounding Bone

Experimental and numerical analysis of secondary disasters induced by oxygen rich combustion within a tunnel

2011 ◽  
Vol 21 (6) ◽  
pp. 897-901
Author(s):  
Caixia Cheng ◽  
Fuchun Sun ◽  
Xinquan Zhou ◽  
Huiyong Niu ◽  
De Liang
Keyword(s):  
Numerical Analysis ◽  
Secondary Disasters

scholarly journals Solving the four index fully fuzzy transportation problem

2020 ◽  
Vol 11 (2) ◽  
pp. 199-215
Author(s):  
Manal Hedid ◽  
Rachid Zitouni
Keyword(s):  
Numerical Analysis ◽  
Comparative Study ◽  
Transportation Problem ◽  
Fuzzy Numbers ◽  
Feasible Solution ◽  
Second Phase ◽  
Approximation Methods ◽  
Initial Feasible Solution ◽  
Fuzzy Transportation Problem ◽  
Two Phases

In this paper, we will solve the four index fully fuzzy transportation problem (\textit{FFTP$_{4}$}) with some adapted classical methods. All problem's data will be presented as fuzzy numbers. In order to defuzificate these data, we will use the ranking function procedure. Our method to solve the \textit{FFTP$_{4}$} composed of two phases; in the first one, we will use an adaptation of well-known algorithms to find an initial feasible solution, which are the least cost, Russell's approximation and Vogel's approximation methods. In the second phase, we will test the optimality of the initial solution, if it is not optimal, we will improve it. A numerical analysis of the proposed methods is performed by solving different examples of different sizes; it is determined that they are stable, robust, and efficient. A proper comparative study between the adapted methods identifies the suitable method for solving \textit{FFTP$_{4}$}.

scholarly journals Observation of Graphite-Like and Diamond-Like Nanostructures in the Raman Spectra of Natural and Synthesized MoS2 Crystals with Small Carbon Additives

2020 ◽  
Vol 21 (4) ◽  
pp. 598-620
Author(s):  
N.E. Kornienko ◽  
A.P. Naumenko ◽  
L.M. Kulikov
Keyword(s):  
Laser Radiation ◽  
Numerical Analysis ◽  
Comparative Study ◽  
Raman Spectra ◽  
Electronic States ◽  
Carbon Structures ◽  
Carbon Additives ◽  
Spectral Components ◽  
Graphite Structure ◽  
Resonant Radiation

A comparative study of Raman spectra excited by laser radiation λL = 632.8 nm and 488 nm of natural crystals of 2H-MoS2 and nanocrystallites MoS2 (C) containing 0.5 and 1.0 wt.% Carbon additives. A detailed numerical analysis of the shape of observed D and G bands was performed. The complication of the spectra of graphite-like and diamond-like structures with the appearance of additional spectral components at 1440-1500 cm-1 and 1230-1270 cm-1 as a result of doubling the size of the corresponding elementary quasi-cells are analyzed. It is shown that the frequencies of  D-bands of diamond-like nanostructures 1297 ÷ 1302 cm-1 don’t depend on λL in contrast to the change in the frequencies of the G (k)-bands. A significant effect of 632.8 nm resonant radiation on the electronic states and properties of MoS2 (C) NC was established. The strengthening of the D bands of the diamond-like structure and the ordering of the graphite structure with increasing carbon content in MoS2 (C) nanocrystals have been established. The change of spectral positions of D, G, and G (k) bands at strengthening the degree of disordering of a diamond- and graphite-like structures is considered. The influence of laser radiation on carbon structures is discussed.

Numerical analysis of CZTS/n-Si solar cells using SCAPS-1D. A comparative study between experimental and calculated outputs

2021 ◽  
Vol 121 ◽  
pp. 111544
Author(s):  
Amina Houimi ◽  
Serap Yiğit Gezgin ◽  
Bedrettin Mercimek ◽  
Hamdi Şükür Kılıç
Keyword(s):  
Solar Cells ◽  
Numerical Analysis ◽  
Comparative Study ◽  
Si Solar Cells

Efficient numerical analysis of optical imaging data: A comparative study

Optik ◽  
2013 ◽  
Vol 124 (21) ◽  
pp. 4685-4692
Author(s):  
David Duarte-Correa ◽  
Alberto Pastrana-Palma ◽  
Carlos A. Olvera-Olvera ◽  
Sergio R. Ramírez-Rodríguez ◽  
Daniel Alaniz-Lumbreras ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Comparative Study ◽  
Optical Imaging ◽  
Imaging Data

A Comparative Study of Chinese Cosmology Cum-Humorology with Eight Elements

1990 ◽  
Vol 18 (03n04) ◽  
pp. 181-184
Author(s):  
S. Mahdihassan
Keyword(s):  
Comparative Study ◽  
Male And Female ◽  
Latent Form ◽  
Plant Life ◽  
Dynamic Form ◽  
Wood Fire ◽  
Five Elements ◽  
The Absolute ◽  
Heaven And Earth

As agriculturist, man recognised Earth, Heat and Water as essential to plant life and projected them as cosmic elements. Pastoral man observed animals multiply due to reproduction. He realized that reproduction resulted the union of opposites as male and female. Projecting reproduction, he conceived creation, which then resulted as the union of the cosmic pair of opposites, Heaven and Earth. The Chinese conceived of creation as starting with creative energy in its latent form, as Thai-Chi, meaning the absolute existence. Later, it assumed its dynamic form called Chhi. It was dual-natured with the opposites called Yang (light) and Yin (darkness). The reproductive power was projected as creative energy called Chhi and male and female opposites were projected as the universal pair of opposites as Yang and Yin. Creative energy produced the cosmic elements which in turn produced all creation. The cosmic elements of Chinese cosmology were Wood, Fire, Water, Earth and Metal. They also included the factors of humorology when the following elements had, as contents, items belonging to humorology, Wood-contained Air, Earth....Moisture; Metal.....Dryness. By assigning dual-sense to three cosmic elements, Chinese humorology came into existence but has incorporated it in its cosmology. It is easy to equate Air = Vayu of Tridosha doctrine of India, Moisture = Kapha, Dryness = Pitta. Then with five elements of cosmology including three with dual-sense, as belonging to humorology, we have eight elements in all as cosmology-cum-humorology. It its obvious that Air, so important in the cosmologies of India and Greece, is no where explicit in Chinese cosmology. This fact emphasizes the content of Wood which is Air. Probably these eight elements have been finally expressed as Pa-Kua, 8-designs already reproduced in the article on Venus and origin of 8-designs (1987).

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