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A hypersonic vehicle is covered by an inhomogeneous and time-varying plasma sheath when it reenters the Earth's atmosphere. To investigate the effects of scattering in the plasma sheath on electromagnetic (EM) wave, the JE convolution-finite-difference time-domain algorithm is applied to three-dimensional time and spatially inhomogeneous plasma. The radar cross-section (RCS) of plasma sheath is analyzed...
In this work, ESD immunity enhancement for the HV n-channel LDMOS with source-end discrete islands fabricated by a TSMC 0.25 μm 60 V process was investigated. An nLDMOS device always has poor ESD capability. If discrete n+ islands are formed in the source end of an nLDMOS transistor, the It2 value of this DUT is upgraded by 4.92% as compared with that of the reference nLDMOS. Meanwhile, if an nLDMOS...
Electronic medical claims (EMCs) can be used to accurately predict the occurrence of a variety of diseases, which can contribute to precise medical interventions. While there is a growing interest in the application of machine learning (ML) techniques to address clinical problems, the use of deep-learning in healthcare have just gained attention recently. Deep learning, such as deep neural network...
Configuration management tools, CMTs for short, are a set of indispensable software for DevOps (Development and Operations). CMTs automate system deployment and configuration through CMT modules, which are reusable, shareable units of configuration code. Therefore, thousands of CMT modules have been developed for various systems, and are still growing fast. Although CMT repositories usually provide...
A fixed-time controller is introduced to achieve the relative motion tracking of leader-follower spacecraft within the allotted time. Unlike the existing finite time control scheme, of which settling time can't be determined in advance, a novel fixed-time sliding mode control scheme in conjunction with a time-varying sliding mode surface is proposed. This method can preset desired fixed-values for...
Design a scientific and reasonable Car styling is the first task of car development. These should be in accordance with the public appreciation of the beauty. The SUV car styling evaluation research is based on the user's demands, using Kansei Engineering research method, contrast with sensual word index, The results of the SUV model evaluation index weight of various indicators calculated by minimum...
the river discharge measurement is one of the basic projects of hygrometry; it determines the water resource utilization. However, a substantial increase in the number of hydrological site, especially for the unmanned hydrometric station brought great difficulty and caused the more workload for the Hydrologists every year. With the development of sensor technology and the data acquisition and fusion...
We propose a novel superpixel-based multi-view convolutional neural network for semantic image segmentation. The proposed network produces a high quality segmentation of a single image by leveraging information from additional views of the same scene. Particularly in indoor videos such as captured by robotic platforms or handheld and bodyworn RGBD cameras, nearby video frames provide diverse viewpoints...
The additional enhanced in conversion efficiency of the heterojunction with intrinsic thin-layer (HIT) silicon solar cell by using plasmonics scattering of indium nanoparticles (In NPs) was experimentally demonstrated. The conversion efficiency of 17.15% for the HIT solar cell with In NPs was obtained, compared to that of 16.63% for HIT solar cell without In NPs.
An experiment is presented to study the effect of modulation instability (MI) on the interferometric fiber sensing system. It is found that MI induces serious phase noise in the system. The MI suppression methods in the interferometric fiber sensing systems are discussed in the paper.
To facilitate large-capacity wireless access with low cost and compact size, the broadband optical multi-Tx & multi-Rx module is developed by integrating multiple directly modulated lasers (DMLs) for the radio-over-fiber system. Under the WDM mode, the optical module can support multiple channels carrying heterogeneous traffics for both low-mobility and high-mobility scenarios. Through a 10-km...
In recent years, movie industry is getting more and more prosperous. There are hundreds of movies released every year. However, it is difficult to notice the releasing of every movie, not to mention actually seeing it. Therefore, movie recommender system has become more and more popular as a research topic. Among a variety of movie recommender systems, content-based methods always ring a bell when...
Sudden Oak Death (SOD) is one of the most serious diseases in the west coast of the United States. In the USA, SOD is mainly found in California and Oregon. It is necessary to predict the outbreak risk area of SOD in the future. In this paper, based on current global vegetation cover data, past climate data and future climate data (two emission scenarios RCP26 and RCP85), the Maxent model was used...
We demonstrate the single polarization 25 Gb/s and 50 Gb/s QPSK signals using an arbitrary waveform generator (AWG) with the 3-dB analog bandwidth of 11.1 GHz. The transmitter-side DSP algorithms are applied to mitigate bandwidth-limitation impairments.
A novel dish-shaped autonomous underwater vehicle (AUV) is named autonomous underwater helicopter (AUH) with excellent maneuverability, controllability in hovering near the seabed and landing on the sea bottom. In this paper, the panel method was applied to predict added mass, inertial hydrodynamic performance of the AUH by ANSYS-AQWA, a well-known potential computer code. Case study of added mass...
We applied genetic algorithm to optimize the parameters of support vector machine for improving prediction accuracy. The proposed method is measured experimentally in 16-QAM coherent communication system for mitigating the fiber-nonlinearity-induced impairments.
To improve the unobtrusiveness and comfortableness of sleep monitoring, we proposed the design and implementation of a smart mat which utilized flexible pressure sensor array and printed electrodes to monitor physiological and behavioral data during sleep. With the proposed novel soft seven-layer structure, the smart mat system can measure pressure distribution images and calculate respiratory rate...
Out-of-memory (OOM) errors and excessive garbage collection (GC) activities are common issues in dataintensive parallel programs, which cause not only poor performance but also execution failures. A recent study [1] proposed a new programming model to address the memory pressure in data-parallel programs. The proposed iTask proactively reclaims memory to avoid OOM errors and reduce GC time. Although...
This paper proposes a measurement-based method to estimate application (APP) specific EMI on a device running a time-sharing multi-tasking operating system (OS). The proposed method includes a near-field measurement technique for APP-specific EMI and an algorithm which can estimate system EMI with any different APPs execution sequences. Because of the task-scheduling feature, the execution order of...
A water control system is designed for the new multi-functional and model-switched remotely operated vehicle, which is developed for detection and decontamination of underwater structure in Ocean Engineering. The dynamic propulsion system and controller unit are designed by analyzing the dynamic force of robot. The design of the water console consist of power supply, control system, communication...
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