Micro-ring resonators have been widely employed, in recent years, as wavelength filters, switches and frequency converters in optical communication circuits, but can also be successfully used as transducing elements in optical sensing and biosensing. Their operation is based on the optical coupling between a ring-shaped waveguide and one or more linear waveguides patterned on a planar surface, ...

In this article, the free vibration analysis of magneto-electro-elastic (MEE) Timoshenko micro beam model based on surface stress effect and modified strain gradient theory (MSGT) under moving nano-particle is presented. The governing equations of motion using Hamilton’s principle are derived and these equations are solved using differential quadrature method (DQM). The effects of dimensionless...

To decrease total system cost and improve efficiency, in future mobile communication systems, we can implement a structure of multiple cells covering an area. This is often referred to as a Hierarchical Cell Structure, HCS. We compare five methods of sharing the scarce radio resources in a two layer HCS: I) DS-CDMA in macro cells and TDMA in micro cells, II) TDMA in macro cells and DS-CDMA in m...

This paper presents a novel method to recognize high density crowd behaviors using micro-behaviors combining with Sparse Representation based on Locally Linear Embedding (named LLE-based Sparse Representation or LLE-SR). We extract micro-behaviors from each frame, respectively named Fountainhead, Bottleneck, Blocking, Lane and Ring/Arch, and construct micro-behaviors histograms to better descri...

iii Summary In last few years, the demand for micro motion devices increases in many industrial applications; especially fields of assembling micro machines, manipulating biological cells, and micro-surgical operation. As a consequence, there is an urgent need to develop dexterous micro-manipulators. However, the field of manipulating microscopic objects places hard requirements on the design p...

Micro-cantilever arrays with different dimensions are fabricated by micromachining technique onto silicon <1 0 0> substrate. These sputtered Gold-Coated micro-cantilevers were later surface functionalized. Scanning Electron Microscopy, Atomic Force Microscopy and Optical SWLI using LASER probe are employed to characterize the morphology and image measurement of the micro-cantilever arrays, resp...

In this paper we present an educational micro-world in which a learner can manipulate variables affecting the efficiency with which a team adapts to its environment. These include the structure of hierarchical relations within the team, the structure of the communications network, and other environmental parameters. Using the micro-world, the learner can design experiments (simulations) explori...

As no reliable methods is available to manipulate component whose typical size is up to 100 μm, current industrial assembled products contained only components down to this physical limit. In that scale, micro-assembly requires specific handling strategies to overcome adhesion and high precision robots. This paper deals with an original robotic system able to perform reliable micro-assembly of ...