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Hospital readmissions within 30 days after discharge are costly and it has been a prior for researchers to identify patients at risk of early readmission. Most of the reported hospital readmission prediction models have been built with historical data and thus can outdate over time. In this work, a self-adaptive 30-day diabetic hospital readmission prediction model has been developed. A diabetic inpatient...
Multi-GPUs nodes are becoming the platform of choice for graph processing. However, in the multiple GPUs environment, there are two main challenges in designing a graph processing system. First, the system suffers from huge communication overhead. GPUs and CPUs are connected through PCIe, whose bandwidth is far smaller than that of GPU memory. Second, the system is developed based on BSP (Bulk Synchronous...
An investigation of Ir(III) complexes has been performed using double-pump probe (DPP) experiments to decouple the triplet quantum yield and triplet cross-section of these complexes. Both femtosecond and picosecond DPP measurements are presented.
We have developed an efficient two-photon photochromic molecule by coupling a chromene with a donating 2PA chromophore via resonance energy transfer. The essential parameters of ring opening and closing are determined from transient absorption measurements.
Using Beam-Deflection measurements we directly measure the temporal dynamics of nonlinear refraction and transmittance of an ITO thin film in the ε-near-zero regime, and find a nonlinear index 5000 times that of glass.
In this paper, a novel liquid metal current limiter (LMCL) is proposed allowing for the large rated current and considerable fault current energy dissipation in DC power system. According to this topology, the LMCL consists of a fast switch and several liquid metal current limiting units in parallel. Firstly, a simulation model of this LMCL is built to calculate the fault current commutation process...
Dispersion of nondegenerate nonlinear refraction in semiconductors is measured using the Beam-Deflection technique. With large nondegeneracy, n2 is greatly enhanced and exhibits a strong nonlinear dispersion, which rapidly switches sign to negative near the bandgap. Potential applications including nondegenerate all-optical switching and pulse shaping are discussed.
This Paper carried out three phase and single phase short circuit tests and verified the security and stability of large scale wind farms integration on Rongcheng power station. Including location and type of short circuit, system operation conditions and measurement of date, summarized the main work between the wind farms short circuit test. Following the ideas of “unit level-wire level-wind farm...
Ships will inevitably roll with the disturbance of ocean environment when sail on the sea. Fin stabilizer is the most effective device to reduce ship roll motion. It rotates around its shaft to a certain angle of attack according to ships roll motion caused by the sea wave. However, the function of fin stabilizer is always in the passive status as the unpredictability of sea waves. This paper proposes...
In this letter, a wideband printed loop-dipole antenna with magnetic-electric coupling is proposed. The proposed antenna consists of two coupled metallic split rings with slits on opposite sides and a parasitic metal strip. Two coupled split-rings can generate multiple operational modes such that multi-frequencies resonance can be formed. And in order to expand the bandwidth and improve the impedance...
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...
This paper describes a novel Ku/Ka band reflectarray antenna for operating at arbitrary polarization. The reflectarray elements consist of two different types of elements: cross-dipole element with fixed-dimension ring for the lower band, and the ring element with round patches for the upper band. Furthermore, the parameters of the element are optimized to suppress the coupling effects. The simulated...
A novel integratable planar T-junction waveguide power divider with anti-phase outputs and full bandwidth of standard WR28 waveguide is proposed. It is basically a E-plane waveguide T-junction with its input port rotated around the axis of the two output ports by 90 degrees to form a planar structure. In order to verify the concept, a standard waveguide port THE junction divider is designed as an...
A theoretical model for one-dimensional CuO nanowire was established considering transport mechanisms induced by different defect concentration. By using a one-dimensional heat equation, the emission current was calculated by considering the temperature induced by the emission current. The maximum emission current density and maximum applied field was studied considering different electrical properties...
GPP (Gross Primary Productivity) is an important index to reflect the productivity of vegetation. The MODIS 8-day GPP time-series products in the study area were rebuilt using Savitzky-Golay filter from 2001 to 2012. After phenological parameters' variation was analyzed based on dynamic threshold method, the time series of GPP were analyzed in this paper. Correlation analysis between annual accumulated...
Ti/Al contacts deposited on p-type epilayer doped with Al at 2×1019 cm−3 are reported. The current-voltage curves of Ti/Al contacts annealed at different temperatures from 800 to 1000 °C were measured, which provided the specific contact resistances (SCRs) of 6.59×10−5 Ω/cm2 and 7.81×10−5Ω/cm2 after annealing at 900°C for 5min and 950°C for 2min, respectively. The microstructures of Ti/Al contact...
When a mobile device connects to a telecom network (e.g., GSM 2G, CDMA 3G and LTE 4G), the network generates measurement report (MR) data containing signal conditions to support communication services. Using MR data to predict the accurate position of a mobile device is an important problem in Telco industry, called Telco localization problem. Although the literatures have proposed various MR-based...
Self-paced learning (SPL), a recently proposed learning strategy, which progressively adds instances to train from simplicity to complexity, could typically reduce the risk of achieving local optima. SPL selects instances based on their losses among the entire data set in each iteration. This probably causes that the selected instances are highly imbalanced, e.g., very few (even on) instances of some...
Because of the feature sparseness problem, conventional text classification methods hardly achieve a good effect on short texts. This paper presents a novel feature extension method based on the TNG model to solve this problem. This algorithm can infers not only the unigram words distribution but also the phrases distribution on each topic. We can build a feature extension library using TNG algorithm...
Greek crosses and TLM test structures were fabricated and characterized along with top-gate field effect transistors. We also show the usefulness and adaptation of a single TLM structure into multiple bottom-gate FETs that allow for extraction of contact resistance and typical device parameters for direct correlation on the same TMD flake enabling very little variability that can occur “flake to flake”...
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