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This paper reports a new hybrid energy harvesting approach which combines triboelectricity and piezoelectricity based on low-frequency (less than 5 Hz, such as environmental vibrations) stochastic resonance. A vibration configuration was well designed to enhance the conversion efficiency of mechanical energy to electricity via the stochastic vibration mechanism. Furthermore, the electric output performance...
In 2012, a novel energy harvesting approach was proposed and named TENG (Triboelectric Nano Generator), which is based on the combination of electrification effect and electrostatic induction. Due to remarkable properties, such as high-performance and the use of environmentally friendly materials, TENG has raised increasing interest. Several techniques have been developed to enhance the power density,...
This paper presents a Naxi dependency parsing method which combined rules and statistics, based on the characteristic of the Naxi language. Firstly, the annotation standard of Naxi Dependency Treebank was established and dependencies were defined which are based on the syntactic structure characteristics of Naxi language, then Naxi Dependency Treebank was constructed; Secondly, the constructed Naxi...
Formal verification of Web service composition is an important means for ensuring the quality of Web service. The Web service composition modeling is a key step of the validation of Web services interaction. Based on the semantic consistency of the Web services description semantic OWL-S and Coloured Petri net, this dissertation proposes a modeling method of Web services interaction based on the OWL-S...
Personalized recommendation systems are becoming increasingly popular in e-commerce. One of the core recommendation algorithms is item-based recommendation algorithm, which recommend by finding products that are similar to other products using consumers' purchase data. However, purchase data contains too little information to reveal the real preference of consumers. The purpose of this paper is to...
Application status of solar energy and geothermal energy in Green Building Label (GBL) projects is investigated at first. Then, characteristic features of provisions for evaluating renewable energy utilization in current Chinese national standard are analyzed. It's followed by introduction of evaluation method for renewable energy in other green building systems. At last, discussion on scientific...
A two-element ultra-wideband dual polarized antenna with resistance loaded is proposed in this paper. Vivaldi antenna is selected as the element and resistive loading in its slots leads to a compact structure. A bandwidth ranging from 0.9GHz to 10.5GHz(11.67:1) for VSWR less than 2.5 is achieved, and isolation between two ports is better than 20dB.A prototype is fabricated, and the measured results...
In this paper, a digital pre-distortion platform is designed for linearization of wideband power amplifier with nonlinearity and memory effect. The proposed platform consists of digital signal processing (DSP), field-programmable gate array (FPGA), analog to digital converter (ADC) and digital to analog converter (DAC) which are all operating under a high speed of 400MHz. The platform covers a frequency...
Product visits and sales are of special meanings for online stores. However, little research has compared the influential factors for product visits and sales. Using data of the China C2C online market, this research adopts the Poisson and zero-inflated Poisson model to examine this issue. Bayesian methods are used to estimate the parameters and we find that factors such as store advertising and product's...
Diffusion geometry offers a general framework for multiscale analysis of massive data sets on manifold. However, its applicability is greatly limited due to the lack of work on distributed diffusion computing, as a data set expands over time, it can quickly exceed the processing capacity of a single agent. In this paper, we propose a multi-agent diffusion approach where a massive data set can be split...
Five treatment groups i.e. Control, Intensity 1 (T1), Intensity 2 (T2), Intensity 3 (T3) and Intensity 4 (T4) were conducted through simulated trampling. Stolon density of centipedegrass (Eremochloa ophiuroides) was significantly affected by trampling (p<0.01). With the exception of T4, with an increase of growth days, the density of stolon gradually increased in length from Control to T3...
Novel perspectives on multiscale information analysis are highly demanded in several areas of multi-agent research, including large-scale agent organization and experience-based decision making. A recent breakthrough in harmonic analysis is diffusion geometry and diffusion wavelets, which offers a general framework for multiscale analysis of massive data sets. In this paper, we investigate the impacts...
In this study, it was found that the acetone extracts of Anthocidaris crassispina could stimulate both osteogenesis and adipogenesis in mouse mesenchymal stem cells (MSCs). The sea urchin was disparted into three parts: shell, spindle and gonad (Sh, Sp and G in short, respectively), and extracted with acetone. Either with or without inducers, Sp and G at concentrations of 0.2 or 0.5 mg/ml remarkably...
This paper considers a new problem of scheduling hot jobs with nonlinear temperature drop curve which is more approximate to the real situation than linear temperature drop curve to minimize the total temperature drop loss. In the problem, all jobs have the same temperature drop curve and different processing times. In this paper, two cases of problems are studied. (1) For the case of jobs without...
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