نتایج جستجو برای: freedom mass

تعداد نتایج: 532285  

2012
S. S. Sazhin J.-F. Xie M. R. Heikal

The previously developed kinetic model for droplet heating and evaporation into a high pressure air is generalised to take into account the combined effects of inelastic collisions between molecules in the kinetic region, a nonunity evaporation coefficient and temperature gradient inside droplets. It is pointed out that for the parameters typical for Diesel engine-like conditions, the heat flux...

Journal: :international journal of advanced design and manufacturing technology 0
moharam habibnejad korayem iust a. tajik h. tourajizadeh

in this paper, a new approach to modify cable tension measuring mechanism is described; furthermore, the constructed boards which amplify load cell output are introduced. this approach has some advantages including of providing feedback for motors, evaluating the robot’s ultimate load carrying capacity, improving the motor control system and estimating the vibrating deflections of the end effec...

Journal: :مهندسی عمران فردوسی 0
بهروز حسنی احسان ژیانی عیدگاهی علیرضا حسن زاده طاهری ناصر ظریف مقدم

dynamic analysis of two-dimensional elasticity problems using the isogeometric analysis method and its comparison with the finite element method is the subject of this research. for this purpose, formulation of the governing differential equation is obtained by using the b-spline basis functions. some numerical examples employing consistent and lumped mass matrices are presented in order to com...

ژورنال: مطالعات تفسیری 2014
Mo’adab, Seyyed Reza, Yadollahpoor, Behrooz,

Human honour is one of the principal categories of the contemporary thought. After semantic analysis of human honour in the meaning system of holy Quran, the paper attempts to deal with the verses which are related to the results and requirements of human honour in Quranic discourse and also to achieve the mentioned requirements from the perspective of various verses about it. Regarding the res...

Mohammad Hassan Moqadas Jafari Reza Karimi

This research studies the ration of social participation among the youth aged 18-29 in Bam after the disastrous earthquake in December 2003 and its effective factors. In this paper, the youth more than 400 people were asked directly with an Interview and a Questionnaire in Bam (South of Iran). Theories like modernization school adopted by learner, Ingelhart, Hantington, Lipst, Almound, Powel, R...

آریایی, علیرضا, فروزنده, سعید,

In this article, the vibration analysis of a set of parallel Timoshenko beams connected by intermediate flexible connections, with arbitrary numbers, is studied. The moving load is a vehicle, which is modeled by a two-axle six degrees of freedom system, as a mass-spring-damper system, in a plane motion. For the solution, a new method is proposed which uses a change of variables strategy to deco...

M. Hosseini manash M.J. Ketabdari

FPSOs are useful in newly established offshore oil regions where there is no pipeline infrastructure in place, or in remote locations where building a pipeline is cost-prohibitive. In this study, hydrodynamic analysis of FPSO is inquired based Boundary Element Method (BEM) and wave forces/moments, added mass and damping coefficients of degrees of freedom are obtained by AQWA software. FPSO moor...

Ahmad Kahrobaian Hamid Reza Malekmohammadi

A new method of optimization on linear parabolic solar collectors using exergy analysis is presented. A comprehensive mathematical modeling of thermal and optical performance is simulated and geometrical and thermodynamic parameters were assumed as optimization variables. By applying a derived expression for exergy efficiency, exergy losses were generated and the optimum design and operating co...

This article proposes a new approach for centralized path planning of multiple aircraft in presence of the obstacle-laden environment under low flying rules. The problem considers as a unified nonlinear constraint optimization problem. The minimum time and control investigate as the cost functions and the maximum velocity and power consider as the constraints. The pseudospectral method applies ...

Journal: :Physical review 2021

We study entanglement harvesting for matter systems such as atoms, ions or molecules, whose center of mass degrees freedom are quantum delocalized and which couple to a relativistic field. employ generalized Unruh-deWitt detector model the light-matter interaction, we investigate how coherent spreading wave function two impacts their ability become entangled with one another, via respective int...

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