نتایج جستجو برای: optical multi

تعداد نتایج: 719538  

Graphene oxide (GO) thin films were simply deposited on fluorine doped tin oxide (FTO) substrate via a low-voltage electrodeposition. The GO and GO thin films were characterized by Zeta Potential, X-ray diffraction, Ultraviolet-Visible spectroscopy, atomic force microscopy, Fourier transform infrared spectroscopy, field emission scanning electron microscopy and energy dispersive X-ray spectrosc...

in the present study, electrophoretic deposition (EPD) was used to obtain dense and crack-free layers of Al2O3 on carbon substrate. Microstructural study of the obtained layers by scanning electron (SEM) and optical microscopy (OM) approved that crack-free layers can be obtained by EPD technique. According to obtained results, isopropanol is a suitable media to obtian compact layers which is at...

Mahdi Karbasian Maryam Mohamadi

The nature of electro-optical equipment in various industries and the pursuit of the goal of reducing costs demand high reliability on the part of electro-optical systems. In this respect, reliability improvement could be addressed through a reliability allocation problem. Subsystem reliability must be increased such that the requirements as well as defined requisite functions are ensured in ac...

Journal: :CoRR 2009
Abd El Naser A. Mohammed Mohamed M. E. El-Halawany Ahmed Nabih Zaki Rashed Mahmoud M. A. Eid

In the present paper, the recent applications of optical parametric amplifiers (OPAs) in hybrid wavelength division multiplexing (WDM)/time division multiplexing (TDM) local area passive optical networks have been modeled and parametrically investigated over wide range of the affecting parameters. Moreover, we have analyzed the ability of the hybrid WDM/TDM Passive optical networks to handle a ...

2004
LN Binh D. Perera L. N. Binh

The demands for greater spectral efficiency, higher line rate, higher channel count, greater amplifier/repeater spacing, Tb/s capacity DWDM long haul optical communication systems, efficient transmission of optical channels over long-haul optical fibre system is essential. Since the conventional Return to zero (RZ) and Non return to zero (NRZ) modulation formats suffer from dispersion and ineff...

Journal: :Optics express 2013
Shuchang Yao Songnian Fu Jianqiang Li Ming Tang Perry Shum Deming Liu

We propose and demonstrate a novel multi-input multi-output (MIMO) equalization based inter-carrier-interference (ICI) cancellation approach employing constant modulus algorithm (CMA) for supperchanels with sub-Nyquist channel spacing, where optical combs are used as optical sources. Compared with the least mean square (LMS) algorithm based ICI canceller, the proposed approach has comparable ca...

2012
Jungho Choi Youngwan Cho

The paper proposes a way of parallel processing of SURF and Optical Flow for moving object recognition and tracking. The object recognition and tracking is one of the most important task in computer vision, however disadvantage are many operations cause processing speed slower so that it can’t do real-time object recognition and tracking. The proposed method uses a typical way of feature extrac...

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