Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences

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174 articles

Influence of Large-scale PV Integration on Voltage and Feeder Loss in Distribution Network

Qiang Li, Dan Liu, Xiaodong Yuan
Influence on the feeder loss and voltage might be brought in with large-scale PV connected. It is important to find out the dynamic change law in thorough quantitative analysis. In this paper, the distribution of voltage on the feeder is calculated. Analytical expressions have been derived to determine...

Research on The Model of Distributed Generation Under The DQ Axis

Chenghui Lin, Genjun Chen, Yong Xiao, Wei Gu, Xiankui Wen, Qiufeng Long
In order to conform to the development trend, distributed generation came into being. Distributed generation accesses to distribution network, which has increased the burden of the distribution network. One the one hand, distributed generation’s accessing position is changeable and accessing capacity...

Design and Implementation of the Evaluation System of the Post Practice in Higher Vocational Colleges Based on AHP

Wen Lin
For the Higher Vocational Colleges, post practice is not only the key link of the training of talents, but also an important part of Higher Vocational Education plan. In order to have a more holistic understanding of the post practice, it must be realized by a specific evaluation system of internship....

Design of User-Privilege Management in Remote Monitoring System of Radio and TV

Xinglong Liu
Radio and television monitoring system is widely adopted by corporations such as transmission monitoring centers and transmitting stations in many provinces. The system is an important technical means to ensure the security of signal transmission and associated facilities. The use privilege management...

Distribution and aggregation process of Cd in Jiaozhou Bay

Dongfang Yang, Sixi Zhu, Fengyou Wang, Xiuqin Yang, Xiaoli Zhao
This paper analyzed the vertical and seasonal distribution of Cd in Jiaozhou Bay bottom waters in 1983. Results showed that Cd contents ranged from 0.13-0.53 g L-1, indicated that the pollution level of Cd in Jiaozhou Bay was very low in the early stage of reform and opening-up. Cd contents in surface...

Water’s effect of benzene hexachloride

Dongfang Yang, Fengyou Wang, Xiuqin Yang, Yunjie Wu, Sixi Zhu
This paper analyzed the change of benzene hexachloride (HCH) content in Jiaozhou Bay during 1979-1989, and further expatiated theories of water’s effect, vertical water’s effect, and horizontal water’s effect, as well as the definitions, processes, and the model diagrams. Furthermore, these theories...

A Method for Complex Event Detection of Out-of-Order RFID Data Flow

Ye Ding, He Xu, Ruchuan Wang, Weiwei Shen
Because RFID events contain features of real-time and mass resistance, there are some issues through the existing complex event detection method for processing, such as inefficient speed and taking up larger memory space. To solve these problems, a complex event detection method based on binary tree...

Synthesis of tert-butyl 4-((2-methoxy-4-(methoxycarbonyl) phenoxy) methyl) piperidine-1-carboxylate

Min Wang, Wenhui Wang, Qidong Tang, Shan Xu
Tert-butyl 4-((2-methoxy-4-(methoxycarbonyl) phenoxy) methyl) piperidine-1-carboxylate (1) is the key intermediate of Vandetanib. It was synthesized from piperidin-4-ylmethanol (2) through three steps Including acylation, sulfonation and substitution. The structures and the synthetic route were determined...

Status of Studies on the Ecological Disposal of the Decentralized Wastewater Treatment Technologies

Yanyan Yu, Haibo Li, Hong Wang, Xin Wang, Xianchao Ji, Yulong Duan
With the rapid development of our economy and the improve of people’s living standard, domestic sewage has become an important pollution source, while rural water pollution is mainly the result from the discharge of untreated domestic sewage. Decentralized treatment of domestic sewage has become a new...

Preparation and Characterization of PANI/TiO2 Nano-composite Fibers

Yong Zhang
In this paper, we prepared PANI/TiO2 nano-composite fibers by the combination of Sol-Gel method and electrospinning technique. The results indicated that the PANI/TiO2 nano-composite fibers have uniform size and good configuration. The average diameter of the PANI/TiO2 nano-composite fibers is about...

First-principles study adsorption properties of CO2 molecule on CaO(100) surfaces

Xiaodong Li, Meimei An, Yuancheng Zhu, Haiyan Ma
The process of stable adsorption of CO2 molecules on CaO (100) surfaces were studied using a periodic slab model by PW91 of generalized gradient approximation (GGA) within the framework of density functional theory (DFT). The results indicated that the surface oxygen atoms (Osurf) are the most active...

Effect of Cross-linking Reactions on Evolution Mechanism of Crystalline-Amorphous Carbon during Bituminous Coal Carbonization

Dongdong Liu, Jihui Gao, Shaohua Wu, Yunkun Qin
Crystalline carbon and amorphous carbon are two of the major carbon structures found in coal. The influence of cross-linking reactions (CLRs) on the evolution mechanism of crystalline-amorphous carbon during bituminous coal carbonization was studied using X-ray and Raman crystallographic methods. These...

Synthesis and Electrochemical Properties of LiFeBO3 and LiFeBO3/C composite

Lin Li, Jinsong Cheng, Qing Liu, Ting Wang, Rongfei Zhao, Hao Zheng
Carbon-coated LiFeBO3 composite material was prepared by a rheological phase reaction method and successive annealing procedure. In the synthesis procedure, citric acid was selected as carbon source. The structures and morphologies of LiFeBO3 and carbon-coated LiFeBO3 samples were characterized by X-ray...

Effects of substrate temperature on graphene grown on Ni foil via atmospheric pressure chemical vapor deposition

Qunfei Zou, Guangzhi Yin, Yueliang Gu, Deming Xie
Multilayer graphene was grown on Ni foil(30µm) via atmospheric pressure chemical vapor deposition (APCVD) at different temperature of 800 ,900 ,1000 , we observe structural difference between the three process by in situ X-ray diffraction and Raman measurements, our experimental results show that temperature...

Active Disturbance Rejection Control of Carrier-based Aircraft Based on Multi-objective Immune Optimization

Junfeng Chen, Wei Han, Xichao Su
In the design of control system, if only the control precision is taken into account, the control energy may be too large, but in a real system, control energy is often limited. Based on this, the attack angle error and engine power are treated as optimization objectives, then the parameters optimization...

Passive Double-Layer Micro-vibration Control of Optical Spacecrafts

Hongjian Xing, Yaoqi Feng, Lei Liu
Aiming at the strict requirement of pointing stability and dynamic environment of optical spacecrafts with micro vibrations in reaction flying wheels or other attitude actuators, this paper presents a passive double-layer micro-vibration control concept. The proposed micro-vibration system comprises...

Changes in the Network Eigen Entropy of resting-state functional brains across the lifespan

Yiming Fan, Hui Shen, Ling-li Zeng, Jian Qin, Zhiguo Luo, Dewen Hu
The brain is a dynamic and complex network formed by hierarchical interconnections among functional regions and neural systems across lifespan. Recent studies using graph theory explore the functional organization of resting-state brains have coherently indicated many non-random topological properties...

Key Technology Research for Unstructured Data Cloud Storage: New Exploring

Julan Yi
From traditional to today's data network text documents, pictures, audio and video mainstream, the Internet is gradually changing the structure of the data, the data from the non-structured data, which are growing and a wide variety of unstructured data, the Internet data Storage management has brought...

Relevant Discussion about the Application of Molecular Imprinting Technology in Environmental Science

Weidong Fu
In recent years, molecular imprinting technology rises gradually along with the development of science and opens a new perspective for the study of environmental science. In this chapter, the author introduces the principle of molecular imprinting technology briefly and explores the application of molecular...

Experimental Study of Triaxial Creep Characteristics of Q2 Loess in Yan’an

Zhao Duan, Jian-bing Peng
Triaxial creep test, was conducted on Yan'an Q2 loess under different moisture contents and confining stresses. The creep strain-time curves were obtained. Based on the test results, the stress levels, confining pressures, and moisture contents were all found to have great impact on the creep properties...

Application of Seismic Reservoir in Sedimentary Facies

Xin Li, Rumin Zhao, Ting Yang, Beibei Wang, Bo Bai
Fracture system is main geological factor to control the formation and preservation of oil gas reservoir. And deepening the understandings to the formation and evolution of petroleum basin fracture are necessary for us to know the geological condition used for form the oil gas in petroleum basin and...

Complete Sets of Electrical Equipment Aided Design Research

Li Sun, Qinghe Zhang, Rongzheng Zhou
Computer aided design (CAD) is used in the design of complete sets of electrical field is divided into mechanical CAD and professional electrical CAD (ECAD) phase. At present, most commercial ECAD software is based on the mechanical CAD software secondary development of products, on the one hand, keeping...

Nanomechanical properties of imprinted amorphous NiAl alloys using atomic simulations

Te-Hua Fang, Chao-Chun Huang, Ming-Hong Lin, Jih-Kai Su, Ivo Stachiv
In this work, the molecular dynamics simulations are used to investigate the mechanical behavior of the imprinted nickel aluminide alloys. These atomic simulations account for the mold size, working temperature, imprinting velocity and the elastic recovery. It has been found that there exists a significant...

Stand-alone signal transmission based on electromagnetic resonant wireless power transmission system

Yafeng Deng, Jian Li, Quanlai Li
Physical connection between devices prone to failure in many applications. In the paper, energy coils and data coils are placed independently on the basis of electromagnetic resonant wireless power transmission technology, At the same time , resonant frequency of energy coils and data coils are designed...

Applications of a Ground-source Heat Pump System with Complementary Functions in Different Areas

Yuxuan Shang, Yuefen Gao
According to the problem of the soil thermal imbalance occurring in the ground-source heat pump system, a new kind of ground-source heat pump system with complementary functions is established. This system can be applied in different climate areas through rational controlling strategies. In the study,...

Advanced Oxidation Processes for the Removal of Algal Cells and Cyanotoxins from Drinking Water

Qingliang Liu, Huiling Liu, Shujie Wu, Ziheng Duan
Although traditional processing methods can be effective for removal of algal blooms of cells, also has the potential to provide a major breakthrough of microcystins in the course of normal operation. As a result, the presence of more advanced processing of algal toxins in drinking water treatment water....

An investigation of axial strain’s effect on the loss and refractive index of the hollow-core photonic band gap fiber

Haixia Liu, Xuexia Zhang, Xiaobin Xu, Fuyu Gao
The response to axial strain of a hollow core photonic band gap fiber(HC-PBF) is investigated. The fiber is designed to operate at 1550nm which have shown to be highly dependent on the exact fiber structure. The relationship between axial strain and confinement loss as well as refractive index is calculated...

On the Accuracy of EGM2008 with Measured Data Based on Strap-down Airborne Gravimetry

Shaoliang Li, Meiping Wu, Shaokun Cai
Gravity survey is an important research topic in geophysics and geodynamics. This paper analyzes the accuracy of EGM2008, the newest Earth gravitational model, in two areas in Shandong Province of China. By comparing the gravity anomaly data from the model with those obtained by a strap-down airborne...

A second order time-varying parameters extended state observer based on hyperbolic sine function for uncertain nonlinear disturbances

Hongguo Yu, Zhongjian Kang, Yao Chen
Derivative peaking phenomena appears in the initial stage when the initial value error between the classical extended state observer (ESO) and system state variables is bigger. A general form of extended state observer with nonlinear hyperbolic sine function is provided. The stability of a second-order...

High-precision automated testing system for wireless sensor network IC

Xingcheng Zhang, Xuan Tang, Zhen Meng, Mou Liu, Yuepeng Yan
This paper introduces a high precision automated test system. We built an automated testing platform using programmable test equipments and designed a series of test boards to adapt the test process. Combined virtual instrument technology and software radio technology, we realized to test the wireless...

Design of Smart Voice-Controlled Mini Car Based On SPCE061A

Hong-Jun Gu, Shi-Dong Zhu, Ding-Zhu Xue, Jian Li, Li-Xin Hou, Shi-Jun Li
A smart voice-controlled mini car based on SPCE061A is designed. The single chip microcomputer (SCM) SPCE061A receives the analog voice signals collected by microphone, and converts them into digital signals through its inner A/D converter. The digital signals can be compiled to some different commands,...

A recursive update cubature Kalman filter

Yonggang Zhang, Gang Wang, Ning Li
This paper investigates the use of recursive update and proposes a recursive update cubature Kalman filter (RUCKF). Merit of recursive update is a better assimilation of measurement information and realization of nonlinear update on the state. The proposed algorithm is shown to achieve superior performance...

Overlapping Signal Separation in DPX Spectrum Based on EM Algorithm

Chuandang Liu, Luxi Lu
Overlapping signal separation in spectrum is a difficult problem. We use Gamma Mixture Model to formulate the distribution of signal power in each frequency bin of digital phosphor technology (DPX) spectrum. Then Expectation Maximization (EM) Algorithm is used to solve the model. Simulation results show...

Research on Efficient SPARQL Query Processing for RDF Data

Yi Zhang
Semantic Web can add explicit semantics to data so that machines can not only simply display these data, but also the machines can understand, process and even integrate them. In recent years, with the comprehensive development of the Linking Open Data (LOD)project and the DBpedia project, Semantic Web...

The summary of Complex scene illumination direction estimating method

Xue Leng, Jinhua Yang, Yu Miao
Augmented reality technology is to expand the virtual reality technology. It can make virtual objects and real scene closely integrated. It can enhance the user's understanding of the real environment. Illumination consistency is an important aspect of the fuse of virtual objects and real scene. In order...

Preparation and Characteristics of Single Layer Oxide Thin Film

Xiaolong Zhu, Jun Xiao
This This Al2O3, SiO2, Ta2O5, Nb2O5, TiO2 single layer oxide thin film are prepared by using ion beam sputtering deposition technology. The oxide films infrared optical constants are fitted by infrared variable elliptic polarization Angle spectrum instrument (IR - VASE), the results show that the fitting...

A Mobile Web-based Ontology Editor for Smartphone

Mingzhe Zhang
Nowadays, smartphones have become indispensable to modern human life. One of benefits of smartphones is that most places on the earth are widely covered by the signal of mobile phones, which means people can connect to the Internet wherever he wants via a mobile phone. It also means a mobile web-based...

An Effective Cards Management Solution Using Smart Bracelet Based on NFC

Huafeng Shi, Haiyun He, Tianwei Wang
Radio frequency identification devices (RFID) and business cards emerge as technology develops and it becomes hard to manage them or find a needed one from a piles. A smart bracelet aiming at providing an effective way to manage these cards is proposed in this paper, consisting of a near field communication...

Bioelectrode based on reconstitution of a dye-linked L-proline dehydrogenase on gold electrode modified by PQQ and FAD

Yanhui Song, Ningxin Wang, Haitao Zheng, Shin-ichiro Suye
An electrochemical sensor was developed by reconstituting pyrroloquinoline quinone (PQQ), flavin adenine dinucleotide (FAD) and L-proline dehydrogenase on gold electrode. Reversible redox peaks and low redox potential were obtained from cyclic voltammograms, proved that the attached PQQ and FAD accelerated...

The Transformation of Al-based MOFs to Mesoporous Al2O3 with Pre-defined Morphology and Modulated Microstructure

Dandan Liu, Yunqi Liu
Hexagonal spindle-shaped mesoporous alumina was prepared using Al-based metal-organic frameworks (MOFs) MIL-96 as precursor through thermal treatment method. The MIL-96 and alumina products were characterized by XRD, SEM, BET and 27Al-NMR. Results from these characterizations showed that alumina products...

A 1.8-V Fully Differential Two-Stage CMOS OTA with 2.8V-Swing for High Speed Pipelined ADC

Xiaodan Zhou, Langcheng Lei, Chen Su, Ai Guo, Dongmei Zhu
A low power, high dc gain, high speed and large swing operational transconductance amplifier (OTA) is proposed. The OTA achieve 104dB dc gain and 3.65GHz gain bandwidth product (GBW) and only dissipates 38mW under 1.8V power supply. It is fabricated in 0.18um CMOS process and occupies 0.146mm2. It is...

Improved Traffic Lane Edge Detection Algorithm Based on Mathematical Morphology

Liying Wu, Qiang Yu, Tongqiang Xu, Shuo Zhang
In view of the limited anti-noise of traditional traffic lane edge detection algorithm, the paper put forward to a new traffic lane edge detection algorithm based on traditional mathematical morphology. For solving the problem of uneven road surface caused by illumination and rainy, this paper combine...

The Real-time Forecast of Photovoltaic Output Based on Empirical Mode Decomposition

Cui Du, Zongqi Liu
The randomness and volatility of photovoltaic (PV) output brings difficulties to do real-time forecast. This paper proposed a new method called EMD-SVM-GA to forecast PV output real-time. Three steps were needed to carry out the method. Firstly, decompose historical PV output data sequence into several...

Design and Analysis of an Adaptive Boost Converter for Piezoelectric Energy Harvester

Kunpeng Wang, Dazheng Xu, Mingjie Guan
Using piezoelectric elements to harvest energy from ambient vibrations has been of great interest over the past few years. This paper presents a two-stage adaptive boost converter with low-voltage starter for low voltage piezoelectric energy harvester. The adaptive technique can deal with a range of...

Study on the mining based on the improved DBSCAN algorithm in pick-up hotspots areas

Zhipu Tang, Xiaodong Wang, Hao Liu, Xiaowen Wang, Zhiqiang Wei
The main business model of taxies called "Roadside Beckon" adopted widely is inefficient. Passengers and drivers are ignorant of the location information of each other. The rise of various types of taxi Apps also have made an effort to solve the problem of "difficult to take a taxi". However, these methods...

Locality-constrained Multi-Instance Learning for Abnormal Trajectory Detection

Ruoyao Li
Abnormal event detection based on trajectory has been extensively investigated in recent years; however, problems remain when processing an incomplete trajectory that usually has abnormality in some parts of the whole trajectory and the rest are normal. In this paper, we propose a locality-constrained...

Fluid-Structure Interaction Simulation of Simply Supported Plate With Large Deformation Subjected to Axial Flow

Fan Wang, Chang-qing Guo, Kun Zheng
The dynamic behavior and flow field characteristics of freely supported structure elastic plates with large deformation subjected to axial flow are studied numerically. The structural dynamics equation is discretized by isoparametric displacement-based finite elements, and the motion of a continuous...

Application of PCA in Concrete Infrared Thermography Detection

Ning An, Jun Xie, Xiaohua Zheng, Xiaoni Gao
Infrared thermography has been a very important nondestructive evaluation (NDE) in the detection of concrete due to its non-contactness, rapidity, capability of imaging large area. More generally, there are some frames in the infrared image sequence. It costs more time to read the information behind...

Logistic recommendation algorithm based on collaborative filtering

Xiaoyu Zhang, Chaofan Dai, Yanpeng Zhao
Traditional collaborative filtering recommendation technology has lower accuracy and couldn't meet the actual needs. So we convert the recommendation problem into the classification problem. We introduce Logistic classification methods based on the collaborative filtering technology and determine whether...

Design of Overload Control for Target Missiles Based on Robust Adaptive Terminal Sliding-mode Control

Kai-bo Bi, Yi-fei Zhang, Xian-hui Sui
Backstepping design, neural network technology, robust adaptive control and terminal sliding-mode control is combined. Firstly, neural networks are used to estimate the virtual control laws of the controlled system. Secondly, terminal sliding-mode control is utilized to improve the convergence speed...