System-on-a-chip(SOC) requires the integration of analog circuits and digital circuits on a single chip. The technology compilable, performance optimized A/D converter (ADC) is an very important block as the bridge of the analog world to the digital section in SOC. It is important and necessary to research ADC with high speed, high resolution, low power
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With advantages such as energy saving, long lifetime, and small size, light-emitting diodes (LEDs) is considered as a revolutionary light source of next generation and attract wide attention. Due to the refractive index difference between chip and air, the light extraction efficiency (LEE) becomes an important factor of LED performance improvement and a research hotspot
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With the continuous development of optical network,the demand of high-speed and reliability of optical switch is increased.Magneto-optic switch is expected to play an important role in all-optical network due to its high switching speed,operating at low voltages,featured as low insertion loss and intrinsic non-reciprocity.A new Magneto-optic switch is proposed and manufactured by the supporting of
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Research of rare-earth-doped double-clad fiber（DCF） lasers is one of the subjects on the frontiers of optoelectronic technology.By using DCF and cladding-pumped technology,the conversion efficiency and output power of fiber lasers can be greatly improved,and a variety of nonlinear effects can be effectively inhibited as well.Therefore,it has become an important way to develop high power lasers.Since
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Energy is the world’s economic development, an issue of great concern. At present, countries are strongly advocated the establishment of a conservation-minded society and the development of recycling economy, how energy efficiency is an important topic facing. At the same time, saving energy for sustainable development is one of the eternal themes. It is not
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Antibiotics are widely used in medical. In order to control the quality of drugs, antibiotics must be measured strictly. Now, the general method is microbe standardization, it discuss the potency of antibiotics by measuring the diameter of bacteriostatic ring automatically, and then recognize and record drug labels manually. This process is complicated and inefficient. Therefore,
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Word Sense Disambiguation(WSD) is an important research project in computational linguistics and natural language processing(NLP), and is also one of hot spot research problems in NLP in recent years. The results of WSD affects the results of machine translation,information retrieval,sentence analysis, speech recognition and so on directly. The research on WSD has great theoretical and
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MRI (Magnetic Resonance Imaging) has been a very significant part of medical imaging techniques, which is recognized as a very important tool for clinical diagnosis. The main task in MRI is to infer useful information from the images for diagnostic purposes. MRI proved to provide high quality medical images and became widely used especially for
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Maxillofacial prosthetic is the specialty of prosthodontics, which restore the orofacial defects with maxillofacial material to rehabilitate the patients’appearance and function. Color simulation is one of the most important factors in the maxillofacial restoration. During the color matching of the maxillofacial restoration, the dentists who select and evaluate the color of skin and restoration depend
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Grid computing is a new technology which appears in recent years.A grid system can make the distributed resources be furthest used and shared.Grid Portal is a Web based application that providing content aggregation from different grid resources and grid services.Grid portal provided the user with friendly interface,consistent operation way and efficient mechanism to facilitate access
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