A six-port junction based on the substrate integrated waveguide (SIW) technology is proposed and presented. In this design of such a junction, SIW first converted to an equivalent rectangular waveguide, then regular techniques are used. structure, power divider hybrid 3-dB coupler designed as fundamental building blocks. circuit operating at 24 GHz fabricated measured. Good agreement between simulated measured results found for junction.

With recent advances in semiconductor processing technology and the development of reconfigurable devices, high bit-rate software-defined radio (SDR) has become practical for commercial applications. This paper proposes an SDR receiver platform based on a new substrate integrated waveguide six-port structure. operates from 22 to 26 GHz it is designed be robust, low cost, suitable different communication schemes. In this study, demonstrated support quadrature phase-shift keying 16 amplitude...

<b>Purpose:</b> To investigate the imaging features of intraductal papillary neoplasm in bile duct (IPNB) on baseline ultrasound and contrast-enhanced (CEUS). <b>Materials Methods:</b> The CEUS 16 pathologically proven IPNB lesions 15 patients were retrospectively analyzed. Real-time contrast specific modes agent SonoVue used for CEUS. <b>Results:</b> Bile dilation was present all patients. mean lengths adenomas adenocarcinomas 2.5 ± 1.1 (range, 1.2 – 4.2 cm) 5.6 2.0 cm 3.3 9.8 (P = 0.004)....

This paper presents a method for tracking human head using particle filter to naturally integrate two complementary cues: intensity gradient and color histogram. The shape of the is modeled as an ellipse, along which estimated, while interior appearance These cues play roles in with free rotation on cluttered background. To evaluate tracker performance, we test both synthetic image sequences real sequences. Experiments show that robust 360-degree background

Software Defined Radio (SDR) has been identified as one potential method to enhance the flexibility of wireless communication systems. In past, operating speed limitation analog digital converter (ADC) and processing ability re-configurable chips for signal have slowed down development SDR useful commercial application. With recent advances in semi-conductor technology devices such processors (DSP) field programmable gate arrays (FPGA), now become practical use system solutions including...

We propose a Multiple Class Multiple-Instance (MCMI) learning approach and demonstrate its application to the problem of image categorization. Our method extends binary for Instead constructing set classifiers (each trained separate one category from rest) then making final decision based on winner all classifiers, our directly allows computation multi-class classifier by first projecting each training onto feature space simultaneously minimizing objective function in Support Vector Machine...

We proposed a novel approach to automatic classification of Diabetic Retinopathy (DR) images and retrieval clinically-relevant DR from database. Given query image, our first classifies the image into one three categories: microaneurysm (MA), neovascularization (NV) normal, then it retrieves that are an archival In stage, classified by Multi-class Multiple-Instance Learning (McMIL) approach, where viewed as bags, each which contains number instances corresponding non-overlapping blocks, block...

Hyperspectral satellite imagery has developed rapidly over the last decade because of its high spectral resolution and strong material recognition capability. Nonetheless, spatial available hyperspectral is inferior, severely affecting accuracy ground object identification. In paper, we propose an adaptively optimized pulse-coupled neural network (PCNN) model to sharpen scale multispectral imagery. Firstly, a SAM-CC strategy designed assign bands bands. Subsequently, improved PCNN (IPCNN)...

Software defined radio (SDR) has been identified as one potential method to enhance the flexibility of wireless communication systems. This paper proposes an SDR receiver platform based on new substrate integrated waveguide (SIW) six-port structure. The proposed operates from 22GHz 26GHz for QPSK and QAM16 modulation. It is found that combination technology can provide a great in system configuration, significant reduction development cost, also high software reuse. Such shows possible...

Recently, MoSi2N4 with large valley spin splitting was experimentally synthesized. However, materials are still rare. We predict a new two-dimensional (2D) MoGe2P4 material. It has and excellent optical absorption properties. The results show that 2D is direct semiconductor bandgap of 887 meV. Its (ΔV) at the top valence band 153 meV because inversion symmetry breaking spin-orbit coupling (SOC). transforms from to metal under biaxial strain 6%. ΔV increases monotonically 137 157 strain. In...

Most conventional memristor-based Pavlov associative memory neural network circuits have been working on realizing the learning and forgetting functions of simultaneous conditioning. However, time interval between unconditional stimulus conditional is a critical variable in classical Different intervals evoke brains with different rates. For example, conditioning less effective than delay Therefore, circuit designed. The proposed consists state detection module, voltage control synapse...

We propose a method for defect detection based on taking the sign information of Walsh Hadamard Transform (WHT) coefficients. The core proposed algorithm involves only three steps that can all be implemented very efficiently: applying forward WHT, transform coefficients, and an inverse WHT using information. Our implementation takes 7 milliseconds 512 × image PC platform. As result, is more efficient than PHase Only (PHOT) other methods in literature. In addition, approach capable detecting...

In many robotics and automation applications, it is often required to detect a given object determine its pose (position orientation) from input images with high speed, robustness photometric changes, accuracy. We propose new matching method that improves efficiency over existing approaches by decomposing orientation position estimation into two cascade steps. the first step, an initial found Histogram of Oriented Gradients (HOG), reducing search 2D template 1D correlation matching. second...

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The novel engines nowadays featured with higher efficiency are operated under the superpressure, supercritical, supersonic, and near-limit combustion condition that is situated in broken reaction zone regime. In this article, propagation heat/radical diffusion physics of a high-pressure dimethyl ether (DME)/air turbulent lean-premixed flame investigated numerically by DNS. A wide range statistical diagnostic methods, including Lagrangian fluids tracking, Joint Probability Density...

<title>Abstract</title> The novel engines nowadays featured with higher efficiency are operated under the superpressure, supercritical, supersonic, and near-limit combustion condition that is situated in broken reaction zone regime. In regime, turbulence Kolmogorov length shorter than thickness fluctuating RMS velocity propagating speed, as such small-scale vortex could tear up continuous front surfaces dispersedly distributed, which highly deviated off flamelet theory assumption. Hence,...

This paper proposed a new pedestrian detection method with depth information based on Histogram of Oriented Gradient and Support Vector Machin. According to the principle perspective, use different classifier scale in position image reduce time. At same time, Adding Hard Examples negative sample decrease false positive rate improve accuracy detection.

This paper proposes a new single-frame image up-conversion approach that uses prior information. The proposed method overcomes the drawbacks of Kondo 2001 where class membership local aperture depends only on contents itself, without taking any consideration all other training apertures, and features in an share one single break point. We show more effective classification can be achieved by making points adaptive to content apertures. propose iteratively find filtering coefficients...