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This paper presents the design of an underwater staring spectral imaging system, which has 31 different color filters that covers the spectral range of 400 nm–700nm. The filters are settled on 2 filter wheels so that the size and weight of the system is deduced greatly, which is essential for underwater applications. Experiments are conducted to test the system, and the results show that the system...
This paper designed a 1-Mb HfOx-based embedded Resistive Random Access Memory (RRAM) device with a one-transistor-one-resistor (1T1R) structure, and systematically investigated its working temperature range. It noted that this embedded RRAM macro has a 1.6X working temperature range than previous design for some extreme environment. Using the peripheral-assisted technique, it can enable the error...
A quarter-rate 51Gb/s PAM4 CDR with decoded dual-NRZ outputs is presented for 400GbE optical transceivers. A baud-rate data-only sampling PD with zero-crossing integrating front-end is proposed to minimize the clock generation and distribution overhead, as well as improving the noise resilience under PAM4 low-SNR inputs. Measurement results show the CDR features 1.08ps RMS clock jitter, 3.4×10−9 PAM4...
We manipulate the pore size of nanoporous polymeric photonic crystals using phase change between water and ice, demonstrating accurate post-manipulation of reflection resonances and thereby providing an approach to address grand challenges in nanomanufacturing and materials engineering.
Gallium Nitride (GaN) transistors are emerging as promising candidates for making high-frequency, low-loss and small-size power converters. To realize normally-off, p-GaN gate technique is widely adopted in commercially available GaN-based power devices. However, owing to the distinctions in device structure, the intrinsic capacitances with regard to gate region vary from those of Si MOSFET. Besides,...
Based on the analysis of current conditions and shortages of the configuration files management in smart substation, the problems existing in current conditions are proposed, such as: ICD test technology, SCD test technology, SCD difference comparison technology. In order to meet the demand of the large scale smart substation construction, a solution of building the smart substation configuration...
Due to the sustained and rapid growth of information and communication technology (ICT) and automation techniques, smart factories for high-end equipment manufacturing involve extensive collaborative networks and knowledge sets. Conventional manufacturing modes are undergoing profound reforms in the Internet and Big Data era, and operations management of such factories should lay more emphasis on...
We demonstrate a novel polyvinyl chloride (PVC) diaphragm-based fiber-tip Fabry-Perot interferometer for gas pressure measurements with ultra-high sensitivity. The PVC diaphragm has been coated to the end facet of a well-cut standard single-mode fiber by use of a plastic welder. Ultrahigh pressure sensitivity of ∼66.07 nm/MPa at 1565 nm and a low temperature cross-sensitivity of —5.5 KPa/°C have been...
In order to adapt to the narrow space and complex branch in deep mine roadway, which have an adverse impact on the accuracy of nodes localization, a self-localization algorithm for deep mine wireless sensor networks based on MDS-MDS and rigid subset (Rigid-MDS) was proposed. The new distributed algorithm divides whole network into some globally rigid subset based on rigid graph theory, in which nodes...
Active contour models (ACM) have been proven to be the most promising model in solving the different problems encountered in image segmentation. This paper proposes a new region-based active contour model for level set formulation in which the energy function is formulated using both local and global intensity fitting terms. The generalized Gaussian distribution has been used as the kernel function...
As the key component of prognostic and health management (PHM), life prediction for equipment plays a more and more significant role during the past decades. In current literature, there have been a few studies highlighting life prediction for equipment subjected to the influence of imperfect maintenance activities. Aiming at this problem, we firstly put forward a stochastic degradation model based...
A discrete-time stochastic LQ problem with multiplicative noises and state transmission delay is studied in this paper, which does not require any definiteness constraint on the cost weighting matrices. Necessary and sufficient conditions are derived for the case with a fixed time-state initial pair. A set of coupled discrete-time Riccati-like equations can be derived to characterize the existence...
In this demo paper, we present a new data service composition sequence generation approach to solve the ad-hoc data query problem in EDMIS. Our approach allows end users to input some keywords, and then the data services related are found and the Top-K data services composition sequences are generated as output.
Though there are some existing data service mashup tools, it is still challenging for novice end users to develop data service mashup to solve data query problem in the situational and ad-hoc business scenario. This paper focuses on the problem of recommending data service mashup plans under the condition that 1) the mashup plan cannot be determined in advance and 2) user simple request description...
This article is mainly focused on a method for stabilizing the position of an incident laser beam position by using a closed-loop fast steering mirror system. According to the input and output data, a model for the fast steering mirror system is established, which is utilized for the closed-loop controller. In the experiment, the spot centroid position, which is obtained by means of a position sensitive...
For resistive random access memory (RRAM) applications, selector devices play an important role to ensure that an individual memory element can be properly addressed through reading and writing while at the same time the information stored in the other cells of the same array does not get perturbed and power does not get wasted by undesirable leakage through unselected cells. An ideal selector device...
The increasing scale and capacity of power grid will lead to the increase of short-circuit current (SCC) level of the buses, which poses threats to the safe and stable operation of power grid. This paper proposes a dynamic partitioning technology for dynamically adjusting power grid partition structure by means of line-switching and load-transferring aiming at the problem of excessive SCC of buses...
In order to solve the voltage over-limit problem of distributed photovoltaic(PV) connected to string lines, it is feasible to fully utilize the reactive power regulation ability of PV systems to adjust the line's voltage. In this paper, based on analyzing the mechanism of the point of interconnection(POI) of PV systems voltage over-limit and the voltage sensitivity of low-voltage string lines, a reactive...
This work presents theoretical demonstration of two-dimensional electron gas (2DEG) at the interface between Al0.2Ga0.8N and 4H-SiC, based on the self-consistent solution of Schrödinger-Poisson equations. High sheet carrier density of 1.1 ×1013 cm−2 was obtained in the Al0.2Ga0.8N/4H-SiC heterostructure, which is comparable to the electron concentration in Al0.2Ga0.8N/GaN heterostructure. The current-voltage...
In order to improve the accuracy of pedestrian detection, we proposed an algorithm of multi-channel feature detection based on Discrete Cosine Transform (DCT). We use a two-layer convolution network for arranging the image information after DCT to build a new channel in the frequency domain. The channel can describe complex textures about pedestrian. Combined with the features of the histogram of...
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