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This paper presents a partition level floorplan method for physical design of digital integrated circuit, which based on data flow analysis. It uses Cadence company P&R tool innovus to make floorplan, and takes a X86 CPU's south bridge design for example to introduce how to use this method to guide floorplan in detail. This method is more effective to improve the quality of floorplan for advanced...
This paper explores a problem of reconfiguration of a large set of agents using global control signals: right, left, up and down. A field of obstacles guides the reconfiguration by limiting motion in the various directions. This paper extends work by Becker et al. ([4], [5] and [7]), and shows there exists a workspace a constant factor larger than the number of agents that enables complete rearrangement...
In this report we have demonstrated a fluorescence resonant energy transfer (FRET)-fluorescence lifetime imaging microscopy (FLIM) combined approach to study the intracellular pathway of gold nanoparticles. The detected energy transfer between gold nanorods (GNRs) and green fluorescence protein (GFP) labeled Heia cell early endosomes and the in-depth lifetime distribution analysis on the transfer...
This paper explores the problem of building a structure of a desired shape, using re-usable interlocking blocks. Blocks are cubes; we make use of nine different types of cubes, each with different arrangements of male and female connectors on the six sides of the cube. The desired shape is specified by a set of voxels. We propose an algorithm that lays out cubes in a particular pattern to give the...
This paper presents a design of unique wireless remote controller, which utilizes WiFi wireless communication technology, providing a hand-held remote controller for an implantable stimulator. Based on MCU STC89C52RC, the controller is realized as a control terminal which issues instructions through WiFi module and receives the returned information, so that the controller realizes the control of the...
SiC rectifier diodes are important components in the power electronics industry because they have advantages over conventional silicon diodes, including large currents, high operation temperatures, and other similar properties. In the devices' current-voltage characteristics, it is readily observable that the curves at different temperatures have a common cross-over point. We found that the temperature...
An effective method of retrieving medical image was presented, which is based on both the bionic pattern recognition theory and the relevant theorem of high-dimensional geometry information. In order to reduce computational complexity, we make use of dimension reduction for feature extraction, and based on the Angle cosine similarity measure for image retrieval. Experimental results show that the...
There are two drawbacks in conventional steganography technology. First, hidden messages cannot be observed by human eyes. Second, decryption process is so complex that it is hard to reach real-time requirements. In this article, it is expected to find a new method, which is simple, fast and secure. Taking these principles into account, we establish a confidential display system based on high refresh...
This paper presents a definition of convexity useful for describing local optimality in configuration spaces, proves that finding convex regions is relatively easy, and presents an algorithm for approximating the free configuration space using a set of such convex regions. The paper examines simple but interesting systems: serial planar arms with revolute joints, and a Reeds-Shepp car. The paper experimentally...
We have demonstrated energy transfer between 4′-6-Diamidino-2-phenylindole (DAPI), a commonly used DNA label, and gold nanoparticles under two-photon excitation in both solution and cell culture. Interestingly, gold nanorods are shown to provide more efficient energy transfer than gold nanospheres, due to the overlapping of longitudinal surface plasmon mode with the incidence excitation wavelength...
Due to the small volume of incipient Pathological Cells, the conventional imaging methods cannot effectively diagnose early-stage cytopathic effect. Since the spatial resolution of optical coherence tomography (OCT) can reach the magnitude of micron, and if OCT probe possesses the characteristic of small fabric and nice flexibility in order to easily enter human body, OCT probe can detect the cytopathic...
It is important to improve voting system in current software fault tolerance research. In this paper, we propose an Elman network voting system. This is an application of Elman network (a form of recurrent neural network). In time sequential environment, Elman network can predict next state by referencing previous state. Thus, Elman network is especially suitable for cyclic system. Majority voting...
We demonstrate room temperature photonic crystal lasers based on high-Q nanobeam cavities. L-L curve shows the lasing threshold of ∼0.6mW and the spontaneous emission factor larger than 0.3.
We describe room temperature CW and pulsed spectroscopic studies of a high-flux source of single photons based on the fluorescence of an individual Nitrogen-Vacancy color center in a diamond nanowire antenna.
In order to protect the copyright of digital productions, a novel watermarking algorithm based on feature points and singular value decomposition (SVD) is presented. By introducing the SIFT's key points matching and geometric distortion estimation, the attacked watermarked image can be corrected and the watermark synchronization is realized. In this way, the feature regions detected by the Harris...
In this paper, we present a novel content-based information hiding scheme which analyse the association between cover image and secret image. In order to increase the hiding capacity and imperceptibility, we plan to embed a less energy image called residual image instead of the original image by a spatial domain method least signification bit (LSB), which obtained from the statistical method-partial...
Various optical fiber harsh environment sensors were reported, including the miniaturized inline Fabry-Perot interferometer sensor by femtosecond laser micromachining, the long period fiber grating sensor and the inline core-cladding mode interferometer by CO2 laser irradiations.
The continuous improvement of social practical production demands modern motor controlling technology. PMSM has been widely applied to those occasions of high performance because of its excellent performance. However, there are large flux linkage and torque ripples and inconstant switching frequency in the conventional DTC. To solve these problems, PMSM DTC using SVPWM based on the subdivision of...
At present, the biometric verification methods have attracted more and more the attention of researchers, and palm print verification as an important method, with its stable and rich features, has been widely used and highly development prospects. However,in feature extraction stage, traditional Gabor often uses fixed parameters to extract feature of all samples, which is not only a waste of a great...
We for the first time present designs of high-Q photonic crystal nanocavities in the cases previously rendered ldquoimpossiblerdquo, including an ultra-high Q dual-polarized nanocavities, high Q/V cavities based on low-index materials, and high-Q air-band-mode cavities.
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