نتایج جستجو برای: variable normal load

تعداد نتایج: 939142  

Journal: :international journal of civil engineering 0
m. gharouni nik assistant professor, school of railway engineering, iran university m. fathali phd student, civil engineering department, amirkabir university

geometrical profile (roughness) of joint surfaces influences the behaviour of rock joints under shear loading. with regard to the dilation, there are two models of direct shear test that may simulate the original loading condition existing in the location from where the specimens have been sampled. the first model in which the normal load is constant (cnl) and the discontinuity is free to dilat...

In the present study, the boundary value problems in generalized thermodiffusive elastic medium has been investigated as a result of inclined load. The inclined load is assumed to be a linear combination of normal load and tangential load. Laplace transform with respect to time variable and Fourier transform with respect to space variable are applied to solve the problem. As an application of t...

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Journal: :IOP Conference Series: Earth and Environmental Science 2017

Journal: :the modares journal of electrical engineering 2009
hossin - afrakhteh mahmoodreza haghifam ali - yazdian

in this paper, power system restoration in the presence of svc and tcsc in partial outage conditions is considered and a new method for maximum load restoration using different control variables is presented. control variables are tap of transformers, generation rescheduling and operating points of facts devices. objective function is restored load (to be maximized) and constraints are voltage ...

2002
Tzyy Shan Lin Andrzej S. Nowak S. Nowak

Structural reliability depends on uncertainties in resistance and loads. In many practical cases the resistance dominates and a reduction of uncertainty about resistance is an effective way of increasing safety. It can be accomplished by proof loading. A truncated distribution is considered and reliability indices are calculated for various proof load levels. The structural reliability is sensi...

1998
Franco Zambonelli

The paper focuses on local load balancing policies for massively parallel architectures and introduces a new scheme for load information exchange between neighbor nodes. The idea is to distort the exchanged load information to let the policy keep into account a more global view of the system and overcome the limits of the local scope. The presented scheme has been integrated into two variants o...

The calculation of the load carrying capacity of variable thickness circular plates subjected to arbitrary rotational symmetric loading is presented. The analysis considers plate materials that obey either the square or the Tresca yield criterion. By using upper and lower bound theorems of limit analysis, corresponding estimations for the load carrying capacity of the plate are obtained. It is ...

2005

The function of a power station is to deliver power to a large number of consum ers. However, the power demands of different consumers vary in accordance with their activities. The result of this variation in demand is that load on a power station is never constant, rather it varies from time to time. Most of the complexities of modern power plant operation arise from the inherent variability o...

2009
Ysbrand D. Van Der Werf Ellemarije Altena Menno M. Schoonheim Ernesto Sanz-Arigita José C. Vis Wim De Rijke Eus J.W. Van Someren

Figure 1. Breakdown of the memory performance for the declarative and implicit tasks. left panel: Subjects having undergone sleep manipulation show a significantly reduced number of true positive responses and an increase in the false negative responses (forgotten items). The absence of differences in the true negative and false positive categories indicates that the memory performance after sh...

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