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In this paper, we address interesting questions about how feng shui influences house price from a data perspective. First, is feng shui likely to influence house price? Second, how do different feng shui features, e.g., house shape, master bedroom location, and other interior room arrangements, influence the price? Third, can we automatically diagnose the feng shui problems of a house? From a dataset...
We propose and experimentally evaluate the dispersion tolerance of a data center communication system with DSP equalization free optical duobinary-PAM4. Without dispersion compensation, its dispersion tolerance is three times higher than DFE equalized PAM4.
Accurately tracking the six degree-of-freedom pose of an object in real scenes is an important task in computer vision and augmented reality with numerous applications. Although a variety of algorithms for this task have been proposed, it remains difficult to evaluate existing methods in the literature as oftentimes different sequences are used and no large benchmark datasets close to realworld scenarios...
Elastic properties of the ocular tissues are significantly affected by intraocular pressure (IOP) in the eye. For example, the speed of the elastic wave in the cornea dramatically increases with IOP. In our previous studies using ultrasound shear wave imaging we demonstrated that, for the lens, the increase in IOP does not result significant changes in the wave velocity. Compared with ultrasound imaging,...
We demonstrate a duobinary PAM4 signal for data center communication with experiments and simulations. Without any dispersion compensation mechanism, the optical duobinary PAM4 signal has about three times higher dispersion tolerance in comparison of an ordinary PAM4 signal.
Both optical coherence tomography (OCT) and selective plane illumination microscopy (SPIM) are frequently used in mouse embryonic research for high-resolution three-dimensional imaging. Each of these imaging methods provide a unique and independent advantage: SPIM provides morpho-functional information through immunofluorescence and OCT provides a method for whole-embryo 3D imaging. In this study,...
A tunable multiband FDD system is presented in this paper. For the first time, a tunable evanescent-mode cavity diplexer and a 65 nm CMOS self-interference-cancelling receiver are combined to provide high Tx-to-Rx isolation required in a multiband FDD system. Self-interference-cancellation reduces the required filter order for a given Tx-to-Rx isolation, reducing the loss associated with the tunable...
A load-configurable high-efficiency power amplifier (PA), co-designed with a two-pole evanescent-mode (EVA) cavity-base impedance tuner, is demonstrated in this paper. A high-Q impedance tuner is used as the output matching network of the power amplifier to properly terminate the transistor various load impedances. The presented design is experimentally validated using GaN transistor and measured...
For implementing high-speed optical wireless communication (OWC), visible diode lasers have been considered to replace light-emitting diodes (LEDs) because it efficiently provides large modulation bandwidth. Among all visible wavelengths, the violet one exhibits the lowest attenuation coefficient in underwater channel and has potential for white-lighting communication by combining with blue/yellow...
In this paper, a bone-guided cochlear implant (BGCI) SOC microsystem is proposed and designed. The BGCI microsystem uses four or more electrodes placed on the bone surface of the cochlea and one on the round window to preserve partially the acoustic hearing. The external SOC of the BGCI processes the acoustic signals and generates stimulation patterns and command that are transmitted to the implanted...
In order to improve the reliability of the single area load frequency system, the problem of fault diagnosis of the single area load frequency control systems based on observer is studied. In this paper, the issues of fault detection and reconstruction for single area load frequency control systems with uncertainty and disturbance by designing adaptive sliding mode observer are considered. By constructing...
Real-time recovering an accurate 6 DoF pose of a known planar target is essential for augmented reality and robotics applications. Despite several pose estimation tracking systems have been proposed over recent years, there is still the need for a more efficient and more accurate solution for general planar objects. In this work, we develop an innovative GPU implementation of a real-time pose estimation...
Chinese character culture is the ancients will be the experience of life, into words, language, vocabulary and other forms and content, and derived from calligraphy, seal and other traditional artistic expression, with the creation of ingenuity; and for Nushu such as the disappearance of the national language there is a lack of convenient and effective design conversion model.
At present, technologies used in indoor positioning like Radio Frequency Identification (RFID) are based on wireless waves. However, various objects can reflect wireless waves, which cause complex multipath effect and non-line of sight transmission. Especially, people walking make errors hard to be corrected. Therefore, this article proposes a way that 940nm infrared ray replaces wireless wave tag...
A rigorous analysis of an aperture-coupled stacked microstrip antenna is described. Developed from a coupled integral equation set employing spectral-domain Green's functions, the analysis includes all coupling, radiation and surface-wave effects. Optimization of the patch dimensions yielded VSWR bandwidths of greater than 20%. Theoretical and measured responses exhibited excellent agreement.
Laser-based white light communication system with free-standing phosphor film is demonstrated, and the effect of phosphor concentration on white light quality and data quality is discussed to achieve the highest data rate of 6.8 Gbit/s.
6.4-m underwater optical wireless communication based on a GaN blue laser diode under direct 8.8-Gbps QAM-OFDM encoding is demonstrated with an average signal-to-noise ratio of 16 dB and a bit error rate of 3.8×10−3.
Robust image features are essential in building effective image recognition engines. These features can be constructed according to various principles, such the distribution of local gradients (Histogram of Oriented Gradients, HOG), the relationship between two pixels (Local Binary Descriptors, LBD), or local intensity order statistics (Local Intensity Order Patterns, LIOP). Because the feature dimension...
This paper studies on the method of log piles location under the complex port background. In a picture, log piles are easily affected by various interference sources. A new technique to detect log piles by taking use of the digital video cameras in port is presented in this paper. Firstly, a method based on the Itti saliency model can be used to roughly locate the log piles. On this basis, the algorithm...
Market structure provides concrete information about the market. Price patterns can be imagined as the evidence of a supply and demand states in the market. Price shifts higher as the demands exceed the available supply and vice-versa. These patterns convey precious information about what is going to happen in the market. The purpose of this study is to investigate the underlying relation between...
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