Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Jabbari, A." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Blank shape optimization on deep drawing of a twin elliptical cup using the reduced basis technique method
Autorzy:
Golshani, M H
Jabbari, A.
Powiązania:
https://bibliotekanauki.pl/articles/957954.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
deep drawing
twin elliptical cup
reduce basic technique
anisotropic
sheet
earring
Opis:
In this project thesis, initial blank shape optimization of a twin elliptical cup to reduce earring phenomenon in anisotropic sheet deep drawing process was studied .The purpose of this study is optimization of initial blank for reduction of the ears height value. The optimization process carried out using finite element method approach, which is coupled with Taguchi design of experiments and reduced basis technique methods. The deep drawing process was simulated in FEM software ABAQUS 6.12. The results of optimization show earring height and, in addition, a number of design variables and time of process can be reduced by using this methods. After optimization process with the proposed method, the maximum reduction of the earring height would be from 21.08 mm to 0.07 mm and also it could be reduced to 0 in some of the directions. The proposed optimization design in this article allows the designers to select the practical basis shapes. This leads to obtain better results at the end of the optimization process, to reduce design variables, and also to prevent repeating the optimization steps for indirect shapes.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 27; 72-77
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analytical investigation of a 2D-PPMs hollow infinite cylinder under thermo-electro-mechanical (TEM) loadings
Autorzy:
Meshkini, M.
Firoozbakhsh, K.
Jabbari, M.
SelkGhafari, A.
Powiązania:
https://bibliotekanauki.pl/articles/279772.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
piezoelectric
porothermoelastisity
2D-PPMs
hollow cylinder
TEM
Opis:
The analytical solution of steady-state asymmetric thermo-electro-mechanical loads of a hollow thick infinite cylinder made of porous piezoelectric materials (2D-PPMs) based on two-dimensional equations of thermoelasticity is considered. The general form of thermal and mechanical boundary conditions is considered on the inside and outside surfaces. A direct method is used to solve the heat conduction equation and the non-homogenous system of partial differential Navier equations using the complex Fourier series and the powerexponential law functions method. The material properties are assumed to depend on the radial and circumferential variable and are expressed as power-exponential law functions along the radial and circumferential direction.
Źródło:
Journal of Theoretical and Applied Mechanics; 2018, 56, 1; 107-122
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monte Carlo calculation of scattered radiation from applicators in low energy clinical electron beams
Autorzy:
Jabbari, N.
Hashemi-Malayeri, B.
Farajollahi, A. R.
Kazemnejad, A.
Powiązania:
https://bibliotekanauki.pl/articles/147627.pdf
Data publikacji:
2007
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Monte Carlo
radiation therapy
medical linear accelerator
electron applicator
scattered radiation
treatment planning
Opis:
. In radiotherapy with electron beams, scattered radiation from an electron applicator influences the dose distribution in the patient. The contribution of this radiation to the patient dose is significant, even in modern accelerators. In most of radiotherapy treatment planning systems, this component is not explicitly included. In addition, the scattered radiation produced by applicators varies based on the applicator design as well as the field size and distance from the applicators. The aim of this study was to calculate the amount of scattered dose contribution from applicators. We also tried to provide an extensive set of calculated data that could be used as input or benchmark data for advanced treatment planning systems that use Monte Carlo algorithms for dose distribution calculations. Electron beams produced by a NEPTUN 10PC medical linac were modeled using the BEAMnrc system. Central axis depth dose curves of the electron beams were measured and calculated, with and without the applicators in place, for different field sizes and energies. The scattered radiation from the applicators was determined by subtracting the central axis depth dose curves obtained without the applicators from that with the applicator. The results of this study indicated that the scattered radiation from the electron applicators of the NEPTUN 10PC is significant and cannot be neglected in advanced treatment planning systems. Furthermore, our results showed that the scattered radiation depends on the field size and decreases almost linearly with depth.
Źródło:
Nukleonika; 2007, 52, 3; 97-103
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of corm dipping in salicylic acid or potassium nitrate on growth, flowering, and quality of saffron
Autorzy:
Khayyat, M.
Jabbari, M.
Fallahi, H.-R.
Samadzadeh, A.
Powiązania:
https://bibliotekanauki.pl/articles/2184.pdf
Data publikacji:
2018
Wydawca:
Instytut Ogrodnictwa
Tematy:
saffron
Crocus sativa
corm
salicylic acid
potassium nitrate
growth
flowering
quality
colour characteristics
chlorophyll fluorescence
Źródło:
Journal of Horticultural Research; 2018, 26, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies