نتایج جستجو برای: circular bend test

تعداد نتایج: 882083  

Journal: :Journal of the Japan Welding Society 1956

Journal: :Physical review letters 2012
Peng Zhang Yi Hu Tongcang Li Drake Cannan Xiaobo Yin Roberto Morandotti Zhigang Chen Xiang Zhang

We demonstrate both theoretically and experimentally nonparaxial Mathieu and Weber accelerating beams, generalizing the concept of previously found accelerating beams. We show that such beams bend into large angles along circular, elliptical, or parabolic trajectories but still retain nondiffracting and self-healing capabilities. The circular nonparaxial accelerating beams can be considered as ...

Journal: :Journal of molecular biology 2000
A Ujvári C T Martin

Phage T7 RNA polymerase is the only DNA-dependent RNA polymerase for which we have a high-resolution structure of the promoter-bound complex. Recent studies with the more complex RNA polymerases have suggested a role for DNA wrapping in the initiation of transcription. Here, circular permutation gel retardation assays provide evidence that the polymerase does indeed bend its promoter DNA. A com...

2009
Kirankumar Hiremath

This chapter discusses an ab-initio frequency-domain model of circular microresonators, built on the physical notions that commonly enter the description of the resonator functioning in terms of interaction between fields in the circular cavity with the modes supported by the straight bus waveguides. Quantitative evaluation of this abstract model requires propagation constants associated with t...

Journal: :Journal of the Japan Welding Society 1965

Journal: :Engineering, Technology & Applied Science Research 2019

Journal: :Powder Technology 2021

Laminar fluid-particle flows in bend geometries are present many industrial, pharmaceutical, and biomedical applications. Particle deposition has been studied extensively; however, little attention paid to the effect of particle sedimentation on position different pipe geometry combinations. This study presented a comprehensive analysis effects flow behaviour 90{\deg} circular bends micron part...

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