نتایج جستجو برای: out of plane displacement
تعداد نتایج: 21188188 فیلتر نتایج به سال:
The Coherent Gradient Sensor (CGS) is extended to the optical differentiation of specular, diffracted wave fronts leading to the combined measurement of inand outof-plane displacement field gradients. A derivation of the underlying optical interference principles is presented along with an analysis of the effective instrument sensitivity. In order to demonstrate the capabilities of the techniqu...
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
پیش بینی ریسک سهام توسط روش garch(1,1) در این تحقیق فراریت (انحراف معیار استاندارد بازده) که رایج ترین معیار برای سنجش ریسک می باشد، برای بازده سهام (ناشی از تفاوت قیمت سهم در دو زمان متفاوت) توسط روش garch(1,1) یا generalized autoregressive conditionally heteroskedastic با پارامترهای p=1 و q=1 پیش بینی می شود.برای این کار داده های مربوط به قیمت سهام و به دو قسمت تقسیم می شوند: in-sample و out...
In this study, Homotopy analysis method is employed for nonlinear vibrational analysis of marine riser subjected to variable axial loads. Mid-plane stretching effect has been considered in the model. Galerkin's decomposition technique is used to convert the Partial differential equation of the motion to nonlinear ordinary differential equation. Homotopy analysis method (HAM) is applied to find ...
(1) Berkeley Sensor and Actuator Center – University of California at Berkeley – 497 Cory Hall – Berkeley, California, 94704 U.S.A. Tel +1 (510) 642 4876, Fax +1 (510) 643 6637, Email [email protected] (2) Berkeley Sensor and Actuator Center – University of California at Berkeley – 497 Cory Hall – Berkeley, California, 94704 U.S.A. Tel +1 (510) 642 9360, Fax +1 (510) 643 6637, Email liepman...
We report on the design, modeling, fabrication and testing of a new electrothermal actuator allowing for various modes of movement and exhibiting large enough forces to be usable in a micro-tribotester. The performance of the actuator has been simulated combiniig numerical and analytical calculations. Experiments have been performed in ambient conditions and vacuum. The theoretical results and ...
In this paper, we show how surface-micromachined buckled cantilevers can be used to construct out-of-plane structures. We include the relevant theory necessary to predict the height and angle of plates attached to buckled cantilevers, as well as the mechanical stresses involved in assembly. These platforms can be assembled to any angle between 0◦ and 90◦ with respect to the substrate by changin...
the major aim of this study was to investigate the relationship between social and cultural capital and efl students’ critical thinking skills. this study takes this relationship in to account to see if people with different sociocultural status are different regarding their critical thinking skills. to this end, 160 university students majoring in english language and literature, english trans...
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