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Chinese Journal of Polymer Science 2007年第2期25卷 221-226页

作者： Qian yang Jing Tian Zhi-kang Xu Institute of Polymer Science and Key Laboratory of Macromolecule Synthesis and Functionalization （Ministry of Education） Zhejiang University Hangzhou 310027 China

Ultraviolet （UV）-induced graft polymerization of acrylamide （AAm） on polypropylene substrates was successfully conducted using dibenzyl trithiocarbonate （DBTTC） as photoinitiator. It was confirmed by chemical analysis and surface morphology observation with attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. A possible mechanism for this graft process was presented, which suggested that, under UV irradiation, the C： S bond in DBTTC could split and abstract a hydrogen from the polypropylene surface and a surface free radical was then formed, and initiated the graft polymerization of AAm.

关键词： Graft polymerization Surface modification Acrylamide Trithiocarbonate UV.

Energy Management for a Residential Microgrid Using Wavelet Transform and Fuzzy Control Including a Vehicle-to-Grid System

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Journal of Electronic Science and Technology 2016年第4期14卷 291-297页

作者： Dong-Qing Zhang Feng yang yang Luo Yu-Xiao Huang Cheng-Long Xia School of Energy Science and Engineering University of Electronic Science and TechnologyChengdu 611731China School of Automation Engineering University of Electronic Science and TechnologyChengdu 611731China

This paper presents the design and implementation of an energy management system （EMS） with wavelet transform and fuzzy control for a residential micro-grid. The hybrid system in this paper consists of a wind turbine generator, photovoltaic （PV） panels, an electric vehicle （EV）, and a super capacitor （SC）, which is able to connect or disconnect to the main grid. The control strategy is responsible for compensating the difference between the generated power by the wind and solar generators and the demanded power by the loads. Wavelet transform decomposes the power difference into a smoothed component and a fast fluctuated component. The command approach used for fuzzy logic rules considers the state of charging （SOC） of EV, renewable production, and the load demand as parameters. Furthermore, the command rules are developed in order to ensure a reliable grid when taking into account the EV battery protection to decide the output power of the EV. The model of the hybrid system is developed in detail under Matlab/Simulink software environment.

关键词： Energy management system (EMS),fuzzy control micro-grid renewable energies,vehicle-to-grid (V2G) wavelet.

SEL ECTIVE OXIDATION OF PROPANE IN INORGANIC MEMBRANE REACTOR

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催化学报 1996年第5期17卷 435-438页

作者： Fang Wenlei yang DalianInstituteofChemicalPhysics ChineseAcademyofS DalianInstituteofChemicalPhys

ＳＥＬＥＣＴＩＶＥＯＸＩＤＡＴＩＯＮＯＦＰＲＯＰＡＮＥＩＮＩＮＯＲＧＡＮＩＣＭＥＭＢＲＡＮＥＲＥＡＣＴＯＲ＊ＦａｎｇＷｅｎｌｅｉ，ＹａｎｇＷｅｉｓｈｅｎ＊＊，ＤｕＨｏｎｇｚｈａｎｇ，ＷａｎｇＸｉａｎｇａｏ，ＦａｎｇＬ... 详细信息

ＳＥＬＥＣＴＩＶＥＯＸＩＤＡＴＩＯＮＯＦＰＲＯＰＡＮＥＩＮＩＮＯＲＧＡＮＩＣＭＥＭＢＲＡＮＥＲＥＡＣＴＯＲ＊ＦａｎｇＷｅｎｌｅｉ，ＹａｎｇＷｅｉｓｈｅｎ＊＊，ＤｕＨｏｎｇｚｈａｎｇ，ＷａｎｇＸｉａｎｇａｏ，ＦａｎｇＬｉａｎｑｉｎｇ，ＬｉｎＬｉｗｕ（Ｄ...

关键词：丙烷薄膜反应器丙烯醛一氧化碳二氧化碳选择氧化作用钼酸钒

Risk Analysis in Action

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Biomedical and Environmental Sciences 2001年第1期14卷 30-31页

作者： KYU-HWAN yang Commissioner KoreaFoodandDrugAdministration

Risk analysis is a useful tool for making good decisions on the risks of certain potentially hazardous agents and suggests a safe margin through scientific processes using toxicological data , contaminant residue levels , statistical tools , exposure values and relevant variants. Risk managers consider scientific evidence and risk estimates , along with statutory , engineering , economic , social , and political factors , in evaluating alternative regulatory options and choosing among those options (NRC , 1983)

关键词： analysis making good decisions hazardous

Genome-Wide Analysis of the Cyclin-Dependent Kinases(CDK)and Cyclin Family in Molluscs

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Journal of Ocean University of China 2021年第6期20卷 1469-1482页

作者： yang Qiong YU Hong LI Qi Key Laboratory of Mariculture of Ministry of Education Ocean University of ChinaQingdao 266003China Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

Cell cycle regulation that plays a pivotal role during organism growth and development is primarily driven by cyclindependent kinases(CDKs)and *** CDK and Cyclin genes have been characterized in some animals,the studies of CDK and Cyclin families in molluscs,the ancient bilaterian groups with high morphological diversity,is still in its *** this study,we identified and characterized 95 CDK genes and 114 Cyclin genes in seven representative species of molluscs,including Octopus bimaculoides,Pomacea canaliculata,Biomphalaria glabrata,Lottia gigantea,Mizuhopecten yessoensis,Crassostrea gigas and Aplysia *** in CDK and Cyclin families were grouped into eight and 15 subfamilies by phylogenetic analysis,*** should be noted that duplication of CDK9 gene was detected in ***,*** and *** genomes,which has never been recorded in *** is speculated that duplication may be the main course of expansion of the CDK9 subfamily in the three molluscs,which also sheds new light on the function of *** addition,Cyclin B is the largest subfamily among the Cyclin family in the seven molluscs,with the average of three *** findings are helpful in better understanding CDK and Cyclin function and evolution in molluscs.

关键词： molluscs CDK Cyclin genome-wide analysis

FRACTIONAL ORDER MODELLING OF THE CUMULATIVE DEFORMATION OF GRANULAR SOILS UNDER CYCLIC LOADING

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Acta Mechanica Solida Sinica 2015年第6期28卷 647-658页

作者： Yifei Sun yang Xiao Khairul Fikry Hanif Institute for Mathematics and Its Applications University of Wollongong State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing University Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing University College of Civil Engineering Chongqing University Faculty of Engineering Computing and MathematicsUniversity of Western Australia

To model the cumulative deformation of granular soils under cyclic loading, a mathematical model was proposed. The power law connection between the shear strain and loading cycle was represented by using fractional derivative approach. The volumetric strain was characterized by a modified cyclic flow rule which considered the effect of particle breakage. All model parameters were obtained by the cyclic and static triaxial tests. Predictions of the test results were provided to validate the proposed model. Comparison with an existing cumulative model was also made to show the advantage of the proposed model.

关键词： cumulative deformation cyclic stress cyclic flow rule fractional derivative granular soil

New two-layer Ruddlesden-Popper cathode materials for protonic ceramics fuel cells

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Journal of Advanced Ceramics 2021年第5期10卷 1052-1060页

作者： Yihan LING Tianming GUO yangyang GUO yang yang Yunfeng TIAN Xinxin WANG Xuemei OU Peizhong FENG School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China

New two-layer Ruddlesden-Popper(RP)oxide La_(0.25)Sr_(2.75)FeNiO_(7-δ)(LSFN)in the combination of Sr_(3)Fe_(2)O_(7-δ) and La_(3)Ni_(2)O_(7-δ) was successfully synthesized and studied as the potential active single-phase and composite cathode for protonic ceramics fuel cells(PCFCs).LSFN with the tetragonal symmetrical structure(IMmmm)is confinned,and the co-existence of Fe^(3+)/Fe^(4+) and Ni^(3+)/Ni^(2+) couples is demonstrated by X-ray photoelectron spectrometer(XPS)*** LSFN conductivity is apparently enhanced after Ni doping in Fe-site,and nearly three times those of Sr_(3)Fe_(2)O_(7-δ),which is directly related to the carrier concentration and conductor ***,anode supported PCFCs using LSFN-BaZr_(0.1)Ce_(0.7)Y_(0.2)O_(3-δ)(LSFN-BZCY)composite cathode achieved high power density(426 mW·cm^(-2) at 650℃)and low electrode interface polarization resistance(0.26Ω·cm^(2)).Besides,distribution of relaxation time(DRT)function technology was further used to analyse the electrode polarization *** observed three peaks(Pl,P2,and P3)separated by DRT shifted to the high frequency region with the decreasing temperature,suggesting that the charge transfer at the electrode-electrolyte interfaces becomes more difficult at reduced *** results demonstrate that new two-layer RP phase LSFN can be a promising cathode candidate for PCFCs.

关键词： protonic ceramics fuel cells(PCFCs) Ruddlesden-Popper(RP)phase single-phase cathode distribution of relaxation time(DRT)function charge transfer

Development status of novel spectral imaging techniques and application to traditional Chinese medicine

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Journal of Pharmaceutical Analysis 2023年第11期13卷 1269-1280页

作者： Qi Wang Yong Zhang Baofeng yang Department of Medicinal Chemistry and Natural Medicinal Chemistry College of PharmacyHarbin Medical UniversityHarbin150081China Department of Pharmacology(The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China Key Laboratory of Cardiovascular ResearchMinistry of Education)College of PharmacyHarbin Medical UniversityHarbin150081China Research Unit of Noninfectious Chronic Diseases in Frigid Zone Chinese Academy of Medical SciencesHarbin150081China Institute of Metabolic Disease Heilongjiang Academy of Medical ScienceHarbin150086China Department of Pharmacology and Therapeutics Melbourne School of Biomedical SciencesFaculty of MedicineDentistry and Health Sciences University of MelbourneMelbourneVIC3010Australia

Traditional Chinese medicine(TCM)is a treasure of the Chinese nation,providing effective solutions to current medical *** spectral techniques are undergoing continuous development and provide new and reliable means for evaluating the efficacy and quality of *** spectral techniques are noninvasive,convenient,and sensitive,they have been widely applied to in vitro and in vivo TCM evaluation *** this paper,previous achievements and current progress in the research on spectral technologies(including fluorescence spectroscopy,photoacoustic imaging,infrared thermal imaging,laser-induced breakdown spectroscopy,hyperspectral imaging,and surface enhanced Raman spectroscopy)are *** advantages and disadvantages of each technology are also ***,the future applications of spectral imaging to identify the origins,components,and pesticide residues of TCM in vitro are ***,the evaluation of the efficacy of TCM in vivo is *** future applications of spectral imaging is anticipated to promote medical research as well as scientific and technological explorations.

关键词： Chinese medicine Spectral imaging Fluorescence spectroscopy Photoacoustic imaging

Oilfield analogy and productivity prediction based on machine learning: Field cases in PL oilfield, China

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Petroleum Science 2024年第4期21卷 2554-2570页

作者： Wen-Peng Bai Shi-Qing Cheng Xin-yang Guo yang Wang Qiao Guo Chao-Dong Tan State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing102249China

In the early time of oilfield development, insufficient production data and unclear understanding of oil production presented a challenge to reservoir engineers in devising effective development plans. To address this challenge, this study proposes a method using data mining technology to search for similar oil fields and predict well productivity. A query system of 135 analogy parameters is established based on geological and reservoir engineering research, and the weight values of these parameters are calculated using a data algorithm to establish an analogy system. The fuzzy matter-element algorithm is then used to calculate the similarity between oil fields, with fields having similarity greater than 70% identified as similar oil fields. Using similar oil fields as sample data, 8 important factors affecting well productivity are identified using the Pearson coefficient and mean decrease impurity(MDI) method. To establish productivity prediction models, linear regression(LR), random forest regression(RF), support vector regression(SVR), backpropagation(BP), extreme gradient boosting(XGBoost), and light gradient boosting machine(Light GBM) algorithms are used. Their performance is evaluated using the coefficient of determination(R^(2)), explained variance score(EV), mean squared error(MSE), and mean absolute error(MAE) metrics. The Light GBM model is selected to predict the productivity of 30 wells in the PL field with an average error of only 6.31%, which significantly improves the accuracy of the productivity prediction and meets the application requirements in the field. Finally, a software platform integrating data query,oil field analogy, productivity prediction, and knowledge base is established to identify patterns in massive reservoir development data and provide valuable technical references for new reservoir development.

关键词： Data mining technique Analogy parameters Oilfield analogy Productivity prediction Software platform

Non-monotonic dependence of current upon i-width in silicon p–i–n diodes

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Chinese Physics B 2018年第6期27卷 341-344页

作者： Zheng-Peng Pang Xin Wang Jian Chen Pan yang yang Zhang Yong-Hui Tian Jian-Hong yang Institute of Microelectronics School of Physical Science and Technology Lanzhou University Lanzhou 730000 China

Silicon p–i–n diodes with different i-region widths are fabricated and tested. It is found that the current shows the non-monotonic behavior as a function of i-region width at a bias voltage of 1.0 V. In this paper, an analytical model is presented to explain the non-monotonic behavior, which mainly takes into account the diffusion current and recombination current contributing to the total current. The calculation results indicate that the concentration ratio of p-region to n-region plays a crucial role in the non-monotonic behavior, and the carrier lifetime also has a great influence on this abnormal phenomenon.

关键词： semiconductor junction diodes transport properties