نتایج جستجو برای: beam spring method

تعداد نتایج: 1769401  

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1998

Journal: :Acta Crystallographica Section A Foundations and Advances 2017

2005
Patrick T. Underhill Patrick S. Doyle P. T. UNDERHILL P. S. DOYLE

We have examined a new method for generating coarse-grained models of polymers. The resulting models consist of bead-spring chains with the spring force law taken from the force-extension behavior in the constant extension ensemble. This method, called the polymer ensemble transformation method, is applied to the freely jointed chain. The resulting model illustrates why current bead-spring chai...

In this paper, the free vibration behaviors and flexural sensitivity of atomic force microscope cantilevers with small-scale effects are investigated. To study the small-scale effects on natural frequencies and flexural sensitivity, the consistent couple stress theory is applied. In this theory, the couple stress is assumed skew-symmetric. Unlike the classical beam theory, the new model contain...

1999
L. Emery

The Advanced Photon Source (APS) is a 7-GeV, thirdgeneration synchrotron radiation source. To provide more stable beam for users, in September 1998 we began commissioning a new operating mode called “top-up.” In this mode, the beam current does not decay but is maintained at a high level using frequent injection, while photon shutters are open and photon beams are delivered to users. The hardwa...

رئیسی, مرتضی, شهریاری, اسماعیل,

Thermal diffusivity of Au nanofluid was measured by using a dual beam mode-mismatched thermal lens method. The samples were prepared in various sizes by utilizing the gamma radiation method. In the dual beam mode-mismatched thermal lens, a diode laser (532 nm) was used as an excitation beam and a He-Ne laser with the beam output at 632.8 nm was used as a probe beam. Thermal diffusivity of gold...

Journal: :Transactions of Japan Society of Spring Engineers 2008

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