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Guochen Zheng, Jingbo Zhang, Chongjun Zhang, Zhaohan Zhang
Endocrine disruptor chemicals (EDCs) is a kind of xenobiotics have the functions of carcinogenic, teratogenicity , accumulation and biological magnification. In recent years, with all kinds of chemicals and a lot of use of pesticides, the amount and type of EDCs in river water increased apparently, it...
Chen Li, Yuxiang Xie, Kaichao Zhang, Xidao Luan
According to the monitoring data of content of 8 main heavy metal elements in a certain urban area, this paper conducts a modeling study on heavy mental pollution of superficial soil in cities. According to single-factor concentration evaluation standard and comprehensive evaluation standard (Nemerow...
Shuang Zhang, Jingyi Zhang, Xuehong Yang, Hongqiang Li, Feng Gao, Chao Lu
the emergence of high penetration of sustainable energy in the power system has increased the demand for faster-ramping units participating in the frequency regulation service. To fulfill the automatic generation control (AGC) and compensate the influence of sustainable energy fluctuations simultaneously,...
K. P. V. B. Kobbekaduwa, N.D. Subasinghe
Thermoelectric effect or Seebeck effect provides a means by which thermal energy can be converted into electricity directly. Voltage appears between two different types of materials (Conductor or Semiconductor) that are joined together and its junction is heated. While most efficient materials are semiconductors,...
Luhua Zhang, Wei Song, Hengchun Ding, Zhonglin Yi, Ruiming Yuan
Based on the construction of intelligent electrical pilot in the state grid corporation of China, fully grasp the requirements of intelligent power demand management, intelligent network based on the research of smart grid-oriented Advanced Metering Infrastructure (AMI), we design and realize the family...
M. Akif Ceviz, Aliriza Kaleli
LPG pressure regulator is a device which is used to change the phase of LPG from liquid to gas by decreasing the pressure. During the phase change, it is necessary to supply the latent heat of LPG to prevent excessive low temperature. Engine coolant is circulated in the pressure regulator for this purpose....
Qingwu Gong, Jiazhi Lei, Haining Zhang, Yang Lei, Si Tan
Output power of Photovoltaic generation system is influenced by temperature, humidity, solar radiation intensity and so on. The effects of three kinds of external climate conditions, including temperature, humidity, solar radiation intensity, on photovoltaic output power were anal sized in detail in...
Fei Hu, Xi Zhang, Keiichi Sato, S. Teeravarunyou, Hao Lin
The proposed of PA (product architecture) makes the product development varied and effective. However, in the current society, focusing on the product to develop new products isn’t satisfying the user’s needs that become abundant and uneasy to be found. PA provides a systematic research framework that...
Yan Xu, WeiLan Wang
This paper studies the key problems of many Tangka image segmentation algorithms and computational complexity and hard to applies to large scale images segmentation. As a exploratory research of Tangka image, the paper fully took the comprehensive and robustness of algorithm into account. The image segmentation...
Shi Yang
With respect to the current situation of logistics industries, the data synchronization technique in embedded mobile database design is researched. The focuses is on the establishment and maintenance of server databases, so as to solve the problems, like the date acquisition in data synchronization...
Bin Xue, Wei Li, Hongyan Song
With rapid development and popularity of internet across the world, information technology has been applied to social life and production of people, and enters the fields of traditional business including tourism at an unprecedented rate. The network travel in future should provide a full range of tourism...
Baohua Shi, Bing Cao, Yamen Zhang, Wei Xu
as one kind of airport, highway runway must be tested and assessed on scene before enable. Aimed at the situation of our country is short of performance index test regulations and methods, this research discussed the test characteristics and demands through several side like vehicle drive, traffic security,...
Lin Shen, Laijun Liu, Fangwen Wu, Yu Li
In order to investigate the the mathematical model considering the skewness-parameter, which covers the shortage of long-span bridge in sensitive parameter analyzing. Random variable along with its statistic probability model is taken. The application of influence coefficient helps to build up a determining...
Ying Xie, Chenyu Wu, Shuang Liu, Yanshuang Wu, Zhen Zhang
T-5 strains of Mortierella were screened from soil sample, which had a high lipid contents. Through the orthogonal experiment, the optimization conditions of lipid were that temperature was 28°C, pH was 6.0, glucose concentration was 100g/L and inorganic nitrogen source concentration was 1g/L. The results...
Feifei Huang, Zhibin Zhang, Shuangjie Lin, Shuangping Huang, Xiaoji Wang
The synthesis of (R)-3-((4-methoxybenzyl)oxy)butanal, which is an intermediate of (-)-Allosedridine, a 2-substituted piperidine alkaloid, was described, The route started from (R)-methyl 3-hydroxybutanoate via a PMB protection, a LiAlH4 reduction and a Swern oxidation.
Shuangjie Lin, Feifei Huang, Shenkun Yang, Shuangping Huang, Xiaoji Wang
A synthetic design of Entecavir was described, and the intermediate, (S)-N-methoxy -3-((4-methoxybenzyl)oxy)-N-methylpent-4-enamide, was synthesized using acrylaldehyde as the starting material, which was obtained via an Evans Aldol reaction, Weinreb amide formation, and a PMB protection.
Yuanyuan Li, Xiaoping Zou, Chuan Zhao
To study the influence of doping on p-type solar cells, we use the p-type NiO/CdTeO3 structure to fabricate Mg-doped CdTeO3 quantum dot-sensitized solar cells (QDSSCs), by doping CdTeO3-sensitized NiO photocathode with dopant element Mg. When the doping ratio of Mg is 1:30 and the successive ionic layer...
Fen Gao, ShuYing Hao, Chengkun Qi, JingJing Feng, Huijie Li
In view of the practical situation, sometimes there is side error of the comb capacitor through superposition of the deep reactive ion etching (DRIE) process, and these manufacturing tolerances can lead to the movable comb fingers offset. Using the software of ANSYS to explore the electrostatic-structural...
XiaoQi Li, YeLi Li, YaLi Qi
This paper presents a color image segmentation method using modified GrabCut. GrabCut is considered as one of semi-automatic image segmentation techniques, since it needs user interaction to initialize segmentation process. To eliminate this inconvenience, this paper propose using Expectation Maximization...