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Following the conventions developed in general domain, most of the current work on clinical temporal relation identification aims to identify a comprehensive set of temporal relations from source documents. This includes both explicit relations that is described in the documents and implicit relations that are identifiable only through inference. Although such an approach may provide a complete view...
A fiber laser pumped Kerr-lens mode-locked Yb:GSO oscillator delivering 4-W, 249-fs pulses at the repetition rate of 92 MHz is demonstrated for the first time. The corresponding optical-to-optical efficiency is as high as 54%.
Shingled Magnetic Recording (SMR) drives have been commercialized in recent years to provide high density and large capacity data storage. However, due to their append-only write property, the data update is usually handled through a log-structured manner, which causes old data to become invalid and dirty. Garbage collection (GC) methods are therefore introduced to clean the dirty data to release...
Aimed at abnormal score from evaluation experts, real data from Shanghai double-blind sampling system of graduate dissertation and thesis between 2013 and 2014 have been in depth analysis and mining. Some basic judgment rules of abnormal score are summed up, and monitoring model for abnormal score is proposed. By the least squares method and the multiple regression models, the equation of monitoring...
In this paper, we focus on an application of recurrent neural networks for learning a model that predicts taxi demand based on the requests in the past. A model that can learn time series data is necessary here since taxi requests in the future relate to the requests in the past. For instance, someone who requests a taxi to a movie theater, may also request a taxi to return home after few hours. We...
In this paper, we propose a sparse beamforming based energy efficiency (EE) maximization problem for multi-user distributed antenna systems (DASs). In DAS, the power consumption of remote antenna units (RAUs) and corresponding backhaul links have an important influence on the whole network efficiency. Hence this paper addresses RAU selection. We select optimal RAUs and corresponding backhaul links...
Most of the existing denoising algorithms are developed for grayscale images. It is not trivial to extend them for color image denoising since the noise statistics in R, G, and B channels can be very different for real noisy images. In this paper, we propose a multi-channel (MC) optimization model for real color image denoising under the weighted nuclear norm minimization (WNNM) framework. We concatenate...
A 35-GHz wideband low-temperature co-fired ceramic vertical-fed dipole antenna is presented. The widened bandwidth of the dipole antenna is achieved by building two radiating dipoles. One dipole (dipole A) is fed by two signal vias directly, and the other one (dipole B), which is placed above dipole A, is fed by one arm of the dipole A through electrical coupling. The proposed dipole antenna has a...
In this paper, recent advances in metallic coated photosensitive-resin-based microwave passive devices fabricated using stereolithography 3-D printing technique are reviewed. Considerations in the design and fabrication technology of these devices are discussed. This new family of 3-D printed microwave devices have advantages of light weight and flexibility in structural design over the conventional...
A novel broadband CPW fed fractal antenna is proposed for wireless RF energy harvesting. Based on circular patch, the equilateral triangle slot is made to form a 2-iteration fractal antenna. Using FR4 with the dielectric constant of 4.4 as substrate, the antenna is simulated and fabricated. The bandwidth of the antenna is from 0.88GHz to 8.45GHz which covers 2.4GHz > 5GHz WLAN bands and mobile...
Array antennas for 77GHz automotive radar application are designed and measured. Linear series-fed patch array (SFPA) antenna is designed for transmitters of middle range radar (MRR) and all the receivers. A planar SFPA based on the linear one and substrate integrated waveguide (SIW) feeding network is proposed for transmitter of long range radar (LRR), which can decline the radiation from feeding...
This paper gives an overview on system architecture and function of electromagnetic interference on-site detection system. A special RF filter bank was designed to protect the system, and radio monitoring technology is used to locate the source of the on-site electromagnetic interference, and help improve the safety features of satellite system more actively.
This paper presents a survey on physics-based modeling strategies for differential via in high-speed multilayer printed circuits (PCBs). Driven by the goals of accurate and efficient design, researchers have explored several approaches for differential via modeling, include π-type RLC circuit, differential transmission line with via-plate capacitance/effective dielectric constant and parallel plate...
The relation between Chinese GDP and defense expenditure is investigated based on the data from 1978 to 2015, which is divided into four stages according to national defense development strategy evolution and defense spending growth rate. The results revealed that the absolute degree of grey incidence between defense expenditure and GDP is relatively small, illustrating defense expenditure exerts...
Shared-antipad via structure is commonly used for high-speed printed circuit board (PCB) design. Therefore, an accurate via-plane capacitance evaluation for this kind of geometry is critical to facilitate engineering design. In this paper, the analytical equation of via-plane capacitance for separated-antipad via structure is extended to the shared-antipad via structure case, by using the equivalent...
This paper presents an X-band eighth-order quasi-elliptic circular waveguide dual-mode bandpass filter (BPF) that is manufactured using a fast and low-cost stereolithography-based 3-D printing technique. The 3-D printed filter has advantages of a more convenient integration free of either assembly or post fabrication tuning and furthermore a lightweight of 111 g. A ceramic-filled resin with an enhanced...
A compact microstrip lowpass filter (LPF) with ultra-wide stopband using transformed stepped impedance hairpin resonator is proposed. The transformed resonator consists of a stepped impedance hairpin resonator and an embedded hexagon stub loaded coupled-line structure. Without enlarging the size, the embedded structure is introduced to get a broad stopband. A prototype LPF has been simulated, fabricated...
Organic thin film transistors with indacenodithiophene — benzothiadiazole (C16IDT-BT) as the semiconducting layer was fabricated to investigate the effect of temperature on the charge carrier mobility. To offer guidelines for optimal working conditions, the temperature range was chosen from 300 K to 460 K. Results showed that the hole mobility improved as the temperature increased until a certain...
Various Online Social Network (OSN) based applications depend on the interactions between users to disseminate information and recruit more users. The temporal evolution of adoption or cascade process of new products, applications or ideas is important to advertisers, OSN operators and application developers. Interactions between users are represented by massive directed graphs, so graph sampling...
Blood Pressure (BP) measurement can assist doctors to assess patients' cardiovascular status and diagnose heart diseases. Pulse Wave Transit Time (PWTT) model is one frequently used BP estimation method to monitor BP continuously in clinics. However, individual variations may influence the measurement accuracy of PWTT model. Focusing on above promble, this paper proposes a novel BP estimation method...
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