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Two sets of light-emitting diodes (LEDs) based on two epitaxial structures of different p-GaN layer thicknesses for demonstrating the effects of localized surface plasmon (LSP) coupling with the quantum wells (QWs) in the LEDs are compared. In the first set based on the epitaxial structure of thick p-GaN, to reduce the distance between the Ag nanoparticles (NPs) and QWs for increasing the LSP coupling...
Pulse diagnosis is one of the efficient techniques to detect the health status of a patient. However, pulse diagnosis suffers from a viewpoint of nonscientific and subjectivity. The goal of this report wants to propose an outline to integrate both the quantification of pulse diagnosis and application of clinic. Hence, the definitions of the quantifiable parameter are followed by clinical experiences...
High-density piezoelectric micromachined ultrasonic transducer (pMUT) arrays have been designed and fabricated using silicon based micromachined process. These devices are based on a novel structure called “reverse-bonding”. Experimental results show that they have excellent performance, suitable resonance frequency and high reliability. The fabricated pMUT arrays are very promising for 3-D medical...
This paper try to establish a Chinese system on a embedded system by discussing dot matrix coding, displaying and inputting approach of Chinese characters, it elaborates font codes of Chinese characters and their displaying process, and also describes the inner code, GB code and area code of the character system, and then introduces a high efficiency inputting-indexing way and two additional data...
Immune algorithm (IA) is presented for pattern synthesis of linear array in this paper. IA is an efficient approach to escape from local minima and maxima which is suited for multi-objective optimization. Logistic mapping is used for enhancing the diversity of the initial antibody colony with the advantages of randomicity, ergodicity and initial sensitivity. Further more, gauss function is applied...
Accuracy and real-time performance are the main factors that determine the practical value of image matching system. To implement a high-speed high-accuracy low-source consumption image matching system, the improved formula of gray-correlation-based algorithm is selected, a pipeline-based highly-parallel structure is carefully designed and many optimization methods are adopted. Experimental results...
Piezoelectric micromachined ultrasonic transducer (pMUT) is a new approach to form high frequency arrays for real-time 3-D medical imaging. pMUT arrays based on SOI-Si bonding and PZT-coated membrane structures have been designed in this paper. After simulation, the 6×6 ultrasonic transducer array was fabricated and characterized. The total array area is approximately 2.0 mm by 2.0 mm. The micrograph...
After studying the existing methods of collision detection and early warning, a vehicle auxiliary anti-collision warning system based on positioning in electronic map is proposed. In this system, OBD, GPS, vehicle sensor and wireless LAN technologies are used to obtain the driving information of a vehicle itself and other vehicles around, and map positioning technologies to display the positions of...
Rapid and parallel protein micro/nano array formation provides a powerful tool for protein chip fabrication and protein preservation. This paper presents the characterization of surface tension and viscosity effect on the formation of nanoliter droplet array by a novel instant micro stamper, which can simultaneously immobilize hundreds of proteins on a chip. Besides, capillary force is the major driving...
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