نتایج جستجو برای: bending radius

تعداد نتایج: 75157  

Journal: :The Journal of experimental biology 2008
Carlos A Moreno Russell P Main Andrew A Biewener

The purpose of this study was to investigate the effects of non-steady locomotor activities on load predictability in two goat forelimb bones and to explore the degree to which bone curvature influences load predictability. We measured in vivo bone strains in the radius and metacarpus of juvenile goats performing a variety of natural behaviors in an outdoor arena and compared these strain magni...

2009
C. Majidi M. Haataja

A theory is developed to explain the spontaneous bending of polar 7 ð0001Þ faceted wurtzite nanoribbons, including the widely studied case of zinc oxide (ZnO) nanoarcs and nanorings. A rigorous thermodynamic treatment shows that bending of these nanoribbons can be primarily attributed to the coupling between piezoelectric effects, electric polarization, and the motion of free charge originating...

2012
Wei-Hua Lu Li-Wen Chen Wen-Fu Xie Yung-Chuan Chen

An experimental and numerical investigation is performed into the power loss induced in grooved polymer optical fibers (POFs) subjected to combined bending and elongation deformations. The power loss is examined as a function of both the groove depth and the bend radius. An elastic-plastic three-dimensional finite element model is constructed to simulate the deformation in the grooved region of...

Journal: :IEICE Transactions 2006
Ning Guan Katsuaki Izoe Katsuhiro Takenaga Ryuji Suzuki Kazuhiko Aikawa Kuniharu Himeno

Recently, broadband-access network has spread out rapidly, and Fiber-To-The-Home (FTTH) has showed a stable growth. Nevertheless, for the prevalence of additional FTTH, the so-called 'last one mile problem', which entails a huge cost for constructing optical fiber networks to end-users, has to be solved. To this end, it is necessary to improve economical efficiency of the products for network a...

2000
Lei Liu

The bending of a carbon nanotube is studied by considering the structural evolution of a carbon nanotorus from elastic deformation to the onset of the kinks and eventually to the collapse of the walls of the nanotorus. The changes in the electronic properties due to non-local deformation are contrasted with those due to local deformation to bring out the subtle issue underlying the reason why t...

Journal: :Sid's Digest Of Technical Papers 2021

We proposed a structure of patterned TFT array films to prevent the macro‐cracks, which was implemented on foldable organic light‐emitting diode (OLED) display. The out‐bending tests demonstrated that protection can improve reliability. And limitation bending radius achieved 1.5 millimeter.

Journal: :Optics express 2010
Dou Xinyuan Xiaolong Wang Xiaohui Lin Duo Ding David Z Pan Ray T Chen

In this paper, we reported high speed optical test on polymeric optical waveguide array with embedded 45 masculine micro-mirrors on flexible substrate for out-of-plane optical interconnects. The waveguide array was bent with curvature ranging from 61 mm to 5mm. As the bending radius decreases, the average insertion loss increases from 3.4 dB to 7.7 dB for single-mode fiber (SMF) coupling and fr...

Journal: :Physical review letters 2007
C W Chang D Okawa H Garcia A Majumdar A Zettl

We find that the high thermal conductivity of carbon nanotubes remains intact under severe structural deformations while the corresponding electrical resistance and thermoelectric power show compromised responses. Similar robust thermal transport against bending is found for boron nitride nanotubes. Surprisingly, for both systems the phonon mean free path exceeds the characteristic length of st...

Journal: :Optics express 2011
Marek Napierała Tomasz Nasilowski Elżbieta Bereś-Pawlik Paweł Mergo Francis Berghmans Hugo Thienpont

We report on a bendable photonic crystal fiber for short pulse high power fiber laser applications. This fiber uses a double lattice structure and enables single mode operation with a very large mode area that reaches 1454 µm² when the fiber is kept straight and 655 µm² in the fiber bent around a 10 cm radius. Single mode operation is enforced by the very large bending loss in excess of 50 dB/m...

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