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Wide Area Networks (WANs), the global backbones and workhorses of today’s internet that connect billions of computers over continents and oceans, are the foundation of modern online services. As Covid...
Tiny magnetic particles enable new material to bend, twist and grab
Tiny magnetic particles new material bend twist grab
2019/12/20
A team of researchers from the Georgia Institute of Technology and The Ohio State University has developed a material called magnetic shape memory polymer that uses magnetic fields to transform into a...
High-temperature devices made from films that bend as they “breathe”
High-temperature devices films that bend breathe
2017/7/20
Carrying out maintenance tasks inside a nuclear plant puts severe strains on equipment, due to extreme temperatures that are hard for components to endure without degrading. Now, researchers at MIT an...
Now, University of Minnesota engineering researchers have developed a chip on which both sound wave and light wave are generated and confined together so that the sound can very efficiently control th...
New material structures bend like microscopic hair（图）
microscopic hair New material structures
2014/8/19
MIT engineers have fabricated a new elastic material coated with microscopic, hairlike structures that tilt in response to a magnetic field. Depending on the field’s orientation, the microhairs can ti...
High resolution numerical simulation of methane explosion in bend ducts
Methane explosion WENO Detonation Bend angle
2012/3/28
In this paper we developed a parallel code, adopting a fifth-order weighted essentially non-oscillatory (WENO) scheme with a third-order TVD Runge-Kutta time stepping method for the two-dimensional re...
Low-Crosstalk and Low-Loss Multi-Core Fiber Utilizing Fiber Bend
Fiber design and fabrication Fiber optics optical communications
2015/5/26
We designed and fabricated a multi-core fiber whose attenuation is less than 0.18 dB/km and effective area is about 80 m 2 . Crosstalk was observed be less than -55.5 dB after 17.6 km propagat...
Cutoff Mechanisms in Bend-Insensitive Single-Mode Fibers
Fibers single-mode Fiber properties
2015/5/22
We present a comprehensive study that explains the specific mechanisms that govern the cutoff behaviors of G.657 single-trench-assisted Bend-Insensitive Single Mode Fibers (BI-SMFs) compared to those ...
Multi-Path Interference in a bend-insensitive fiber
Multi-Path Interference bend-insensitive fiber
2015/5/20
Multi Path Interference noise in a bend-insensitive fiber is examined by wavelength and polarization scanning, by sample stretching, and by increasing the end splices misalignment,to find the splice l...
New designs of bend-insensitive multimode fibers are proposed. The bending loss can be reduced by a factor of 10 while meeting all other standard requirements. The design concept is validated by actua...
Directional Bend Sensor Based on Re-Grown Tilted Fiber Bragg Grating.
Bend sensor birefringence cladding mode op-tical fiber sensors tilted fiber Bragg grating
2013/5/27
A novel fiber optic bend sensor is implemented by using a re-grown tilted fiber Bragg grating (TFBG) written in a small core single mode fiber with UV overexposure. The spectrum of the re-grown TFBG c...
All-Solid Single-Trench-Assisted Bend-Insensitive Fibers:Performances and Deployment Aspects
Fibers single-mode Fiber properties
2015/6/5
We demonstrate how all-solid single-trench-assisted (ultra-) bend-insensitive fibers meet the FTTH market requirements and growing needs. High manufacturing robustness,excellent splicing performances ...
Highly sensitive bend sensor with hybrid long-period and tilted fiber Bragg grating.
Long period grating Tilted fiber Bragg grating Cladding mode recoupling Bend sensor Curvature measureme nt
2013/5/27
We demonstrate a new type offi ber optic bend sensor with a hybrid structure made up of a long period grating (LPG) and a tilted fiber Bragg grating (TFBG). The sensing mechanis m is based on the spec...
极简抽象艺术风格的Bend沙发
Bend沙发 艺术 抽象
2010/3/16
法国设计师Stéphane Perruchon的最新作品是一款沙发，其设计在保证沙发舒适度的前提下，采用了极简抽象艺术风格。这款沙发由一块折叠金属板和色彩多样的舒适软垫组成。当你第一眼看到它的时候，你可能就会被其鲜明的结构所震撼。这款沙发的支撑结构由一块金属板以一定角度折叠完成，产生的空隙恰好可以把沙发垫放进去。
Proposal of Reliable Cutoff Wavelength Measurement for Bend Insensitive Fiber
Reliable Cutoff Wavelength Measurement Bend Insensitive Fiber
2015/7/16
Reliable technique to determine the cutoff wavelength using single-mode fiber as a reference is newly proposed. This technique identifies cutoff wavelength of 1st higher-order-mode in BIF precisely, w...