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This paper invested an intelligent Mango glade classification based on AlexNet with GrabCut algorithm. The proposed system integrated four modules: user interface, pre-process of image, object detection and grade classification. A webcam integrated in user interface is for capturing the video and image of the target here. Image pre-process includes object mask and foreground segmentation using GrabCut. For glade classification, an AlexNet was adopted here to provide the output, mango grade. From the observation about experiment results, we can find the proposed approach with good performance and efficient. After implementation, the proposed system was applied in practical scenario and achieved he performance to fit the users’ requirement.

This study presents a SCARA-based robotic system that can complete a six-sided 3D puzzle. The proposed system is composed of a SCARA, a depth camera, a conveyor belt, a computer, and two motors controlled by an Arduino board. The entire algorithm of completing a six-sided puzzle incorporates several main stages, including detecting puzzles, extracting a puzzle cube’s contour through the depth map, analyzing the orientation of a cube, and recognizing the puzzle cube. Finally, every 6-sided puzzle is moved to the target position using vacuum suction.

In this paper, we demonstrated the hybrid silicon photonics platform developed in ITRI. The functions of this platform include full-wafer high speed photonic measurement, active and passive device fabrication, and the photonic packaging technology.

This research presents the design and characterization of the traveling wave Mach Zehnder modulator loaded L-shaped PN junction phase shifter at 72.8 Gbps data-rate. We propose a new structure of phase shifter with low series resistance meanwhile maintaining the FOM with low V π L (0.9 V-cm) and optical absorption.

We present a special design and the characterization of racetrack-coupled Mach_Zehnder interferometer for high speed and high linearity E/O modulation. The static extinction ratio, and full-widthhalf-maximum are analyzed and the photon-life-time-limited bandwidth are evaluated for more than 50 GHz.

We successfully establish a silicon photonics device manufacturing and testing platform in 200mm SOI wafer. We integrate modulator and driver chip to show 30Gb/s PAM4 capability. A fully-automatic wafer level characterization process is built up for all optical devices in surface coupling method.

Motivated by modeling a general behavioral function of a target system, a data-driven multivariable support vector regression (SVR) is developed. The multivariable SVR is sought to estimate a generalized relationship among multiple input variables which would be collected locally from a distributed multi-sensor network. Instead of an immediate estimation with a installed single sensor, the participation of distributed multi sensors gains the estimation of the system states more reliable and more generalized. The proposed SVR modeling method gives rise of the possibility to support multivariable input spectrum, and the flexibility to combine the input variables with respective decay weights. The paper herewith elaborates the development with experimental evidences.

In high power applications, proper gate control strategy for insulated gate bipolar transistors (IGBTs) can increase their efficient and reliability. As to the feed-back control strategy, the key issues are the control speed and control stability. This paper proposed a new feed-back control method integrated in digital gate driver for high power IGBT. It aims for controlling the current and voltage slope suppressing the voltage overshoot and electromagnetic interference (EMI) in switching transient. The digital gate driver for large power IGBT detects the collector current and voltage in real time. Then the detected analog signal is digitally sampled and sent to the digital core on board. An algorithm similar to bang-bang control is deployed in forward control loop to adjust the gate drive resistance. The control stability and robustness can be guaranteed as a result. The whole detection and control process is accomplished in real time with only hundreds of nanoseconds. Thus, the proposed control method can optimized the IGBT switching transient with high reliability and time effectiveness. Experimental results validate the feasibility of the proposed feed-back digital control method.

The on-line measurement of the high-power IGBT collector current is important to the hierarchical control and short-circuit and overcurrent protection of its driver and the sensorless control of the converter. The conventional on-line measurement methods for IGBT collector current are not suitable for engineering measurement such devices as the large-size, high-cost, low-efficiency sensor, current transformer or divider, etc. Based on the gate driver, the paper uses a resistance capacity circuit paralleled with the IGBT power emitter and auxiliary emitter terminals to fulfil the IGBT collector current on-line estimation by measuring the capacity voltage. The theoretical analysis verifies the feasibility of this method. However, the very small resistance of IGBT power emitter leads to the narrow bandwidth of the estimated current. The improved method is adopted to increase the accuracy of current estimation and solve the problem of narrow bandwidth existing in the high-power IGBT steady-state collector current. The simulation and experiment results prove the method to feasible and effective.

The paper uses factor analysis and grey relational advantage analysis method to analyze the interactive relationship between regional scientific and technological strength and modern service industry development in Nanjing. Based on data of 1998–2008 in Nanjing, this paper calculates integrated development levels and subentry levels of scientific and technological strength and modern service industry. On this basis, the grey advantage analysis method is used to study the intrinsic relevance between scientific and technological strength and modern service industry. The results show that: the development of modern service industry in Nanjing, RD in the upgrading of scientific and technological strength in Nanjing, a good foundation and development potential of modern service industry play a catalytic role, but there is no comparative advantage to play out. Nanjing should continue to strengthen the two-way leading role of scientific and technological strength and modern service industry, and take advantage of the mutual promotion between scientific and technological strength and modern service industry.

The development of Statistical Process Control mostly focuses on temporal data. Those techniques are not sufficient for analyzing the manufacturing information embedded with spatial structure. The monitoring process that treats manufacturing records as purely multivariate data would miss important information of spatial relationship among the records. Thus, this paper proposes a spatial-EWMA test procedure to identify process mean shift in a plane. The goal is to analyze whether there is an outbreak cluster in the investigated area. The proposed method uses relative distances among observations to construct test statistics. The observations which are far away from the outbreak center receive smaller weights since they tend to be less influential. The simulation results show that the detection power of the spatial-EWMA test procedure is preferable to the classical multivariate control chart like T2 chart even in the high dimensional scenarios.

Packet classification problem has received much attention and continued to be an important topic in recent years. In packet classification problem, each incoming packet should be classified into flows according to a set of pre-defined rules. Grid-of-tries (GoT) is one of the traditional algorithmic schemes for solving 2-dimensional packet classification problem. The advantage of GoT is that it uses the switch pointers to avoid backtracking operation during the search process. However, the primary data structure of GoT is base on binary tries. The traversal of binary tries decreases the performance of GoT due to the heights of binary tries are usually high. In this paper, we propose a scheme called GST (Grid of Segment Trees). GST modifies the original GoT by replacing the binary tries with segment trees. The heights of segment trees are much shorter than those of binary tries. As a result, the proposed GST can inherit the advantages of GoT and segment trees to achieve better performance. Experiments conducted on three different kinds of rule tables show that our proposed scheme performs better than traditional schemes, such as hierarchical tries and grid-of-tries.

High-kappa HfO2/TiO2/HfO2 multilayer quantum well (MQW) charge storage devices with a large memory window of DeltaVtap8.1 V, an excellent endurance and a good retention (~9% charge loss at 20degC) are reported. Both program and erase speeds of DeltaVt>3 V@100 mus are achieved for memory transistors under channel hot carrier injections. Furthermore, quantum well memory capacitors with high-kappa Al2O3 as a blocking oxide and high work function metal gate show low leakage current density of ~2.4times10-7 A/cm2@Vg=-5 V at 125degC and high program/erase speed of DeltaVFB>2 V@10 mus with a low operation voltage of Vg