This paper provides a new model based on the hybridization of wavelet and relaxed median filter for denoising of noisy medical images. The present study focuses on proposing a technique to reduce speckle and salt & pepper noise from CT (Computed Tomography) scan devices. In diagnosis of diseases, devices are frequently used by healthcare professionals. The main problem during diagnosis is the d...

We have developed an integrated hydrogenated amorphous silicon (a-Si:H) fluorescence detector for microfluidic genetic analysis. It consists of a half-ball lens, a ZnS/YF3 multilayer optical interference filter with a pinhole, and an annular a-Si:H PIN photodiode allowing the laser excitation to pass up through the central aperture in the photodiode and the filter. Microfluidic separations of m...

Dengue virus (DENV) is an arbovirus transmitted to humans by the bite of infected Aedes mosquitoes. Experimental per os infection of mosquitoes with DENV is usually a preliminary step in virus/vector studies but it requires being able to prepare artificial blood-meals with high virus titers. We report here the convenient use of centrifugal filter devices to quickly concentrate DENV particles in...

Coupled-cavity hexagonal ringlike photonic crystal lasers are fabricated as a class of single mode photonic crystal laser light sources. The structures are formed by placing one missing hole nanocavity H1 type between each two segments at 60° that form the hexagonal ringlike photonic crystal laser. The H1 cavities act as a mode filter, clamping the frequency of emission of the laser device. The...

This paper presents a hardware/software design and implementation that uses modern networkprocessors as packet-filtering devices that can be used for advanced network applications such as firewalls, network address translation, intrusion detection, traffic shaping and others. Included are the motivation and design and implementation tradeoffs of a hierarchical and pipelined, packet-filter softw...

In this paper we describe the dynamics of MEMS oscillators that can be used as frequency filters. The unique feature of these devices is that they use parametric resonance, as opposed to the usual linear resonance, for frequency selection. However, their response in the parametric resonance zone has some undesirable features from the standpoint of filter performance, most notably that their ban...

A hybrid network of evolutionary processors consists of several processors which are placed in nodes of a virtual graph and can perform one simple operation only on the words existing in that node in accordance with some strategies. Then the words which can pass the output filter of each node navigate simultaneously through the network and enter those nodes whose input filter was passed. We pro...

In this paper, we report our experimental study on directly coupling a micro/nano fiber (MNOF) ring with a side-polished fiber(SPF). As a result of the study, the behavior of an add-drop filter was observed. The demonstrated add-drop filter explored the wavelength dependence of light coupling between a MNOF ring and a SPF. The characteristics of the filter and its performance dependence on the ...

This paper deals with the implementation of the extended robust Kalman filter (ERKF) which was developed considering uncertainties in the parameter matrices of the underlying state-space model. A key contribution of this work is the demonstration of a method for real-time computation of the filter on parallel computing devices. The solution of the filter is expressed as a set of simultaneous li...