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Data organization and management of mine typical object spectral libraries

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High Technology Letters 2015年第1期21卷 96-101页

作者：季民 Jin Fengxiang Li Ting sun yong Guo Lifeng Geomatics College Shandong University of Science and Technology President Office Shandong Jianzhu University

With the development of mining industry,people have obtained profits from it,but they are facing environmental *** order to monitor these environmental changes,a spectral library is set up for the spectrum data organization and management of mine typical *** of the spectrum data come from the long-term field measuring in mining area and other spectral *** the data quality control and error detection in the measuring data,an inner precision calculation method is presented and a series of interactive graphical controls are developed for the spectrum visualization and *** extracting and saving spectrum characters for the mine typical objects,realizs spectrum matching and classification for new measured spectrum samples are realized by using Euclidean distance,Aitchison distance,Pearson correlation coefficient and vector angular cosine *** on the matching result,this work is able to gather dynamically physicochemical environment parameters from the library and gives an early warning for the mine environmental changes.

关键词： spectral library mine typical object data organization data quality control spectrum matching spectrum analyzing

A multimode-fused sensory memory system based on a robust self-assembly nanoscaffolded BaTiO_(3):Eu_(2)O_(3) memristor

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InfoMat 2023年第9期5卷 51-63页

作者： Xiaobing Yan Yinxing Zhang Ziliang Fang yong sun Pan Liu Jiameng sun Xiaotong Jia Shiqing sun Zhenqiang Guo Zhen Zhao School of Life Sciences Institute of Life Science and Green DevelopmentKey Laboratory of Brain-Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electron and Information EngineeringHebei UniversityBaodingthe People's Republic of China Department of Materials Science and Engineering National University of SingaporeSingaporeSingapore

Biologically inspired neuromorphic sensory memory systems based on memristor have received a lot of attention in the booming artificial intelligence industry due to significant potential to effectively process multi-sensory signals from complex external ***,many memristors have significant switching parameters disperse,which is a great challenge for using memristors in bionic neuromorphic sensory memory ***,a stable ferroelectric memristor based on the Pd/BaTiO_(3):Eu2O_(3)/La0.67Sr0.33MnO_(3)grown on Silicon structure with SrTiO_(3)as buffer layer is *** device possesses low coercive field voltage(-1.3-2.1 V)and robust endurance characteristic(~10^(10)cycles)through optimizing the growth *** importantly,an ultra-stable artificial multimodal sensory memory system with visual and tactile functions was reported for the first time by combining a pressure sensor,a photosensitive sensor,and a robotic *** the above system,the sensitivity value of the system is expressed by the conductance of the memristor to realize the gradual change of external stimulus,and multi signals inputs at the same time to this system have faithfully achieved sensory adaptation to multimodal *** work paves the way for future development of memristor-based perception systems in efficient multisensory neural robots.

关键词： artificial sensory memory system ferroelectric memristor multi signals ultra-stable

Defects in Fast-Neutron Irradiated Nitrogen-Doped Czochralski Silicon after Annealing at High Temperature

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Journal of Rare Earths 2006年第Z1期24卷 91-93页

作者： Liu Lili Li Yangxian Ma Qiaoyun Chen Guifeng sun yong Yang Shuai School of Material Science and Engineering Hebei University of TechnologyTianjin 300130China

Fast-neutron irradiated nitrogen-doped Czochralski silicon(NCZ-Si)was annealed at 1100℃for different time,then FTIR and optical microscope were used to study the behavior of *** is found that[Oi]increase at the early stage then decrease along with the increasing of anneal *** density induced-defects can be found in the cleavage *** comparing NCZ-Si with Czochralski silicon(CZ-Si),[Oi]in NCZ-Si decrease more after anneal 24 h.

关键词： nitrogen-doped Czochralski silicon(NCZ-Si) neutron irradiation oxygen precipitation FTIR

RE-ENGINEERING TRANSFORMER MAINTENANCE PROCESSES TO IMPROVE CUSTOMIZED SERVICE DELIVERY

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Journal of Systems Science and Systems Engineering 2011年第3期20卷 323-345页

作者： Amy J.C. TRAPPEY yong sun Charles V. TRAPPEY Lin MA Department of Industrial Engineering and Engineering Management National Tsing Hua University Taiwan China Department of Industrial Engineering and Management National Taipei University of Technology Taiwan China School of Engineering Systems Queensland University of Technology Australia Department of Management Science National Chiao Tung University Taiwan China

The outage of a transformer in a power generation system will generally result in a shutdown of the entire system. Consequentially, large amounts of revenue are lost to the plant owner with a substantial negative impact on the civil community and industrial customers. This paper analyzes the current maintenance practices （i.e., an as-is process model） of a transformer manufacturing company, which provides maintenance services to power generation plants and reports the major weaknesses in current business practices. The maintenance weaknesses include isolated processes and paper based information communication. These inefficient processes result in service delays, cost increases, and inappropriate responses to customers＇ specific requests and complaints. To improve the efficiency and flexibility of the entire transformer maintenance service system, an e-integration approach is implemented with three key tasks. First, the current business processes are re-engineered to provide an improved （to-be） business model. Then, we replace paper based documentation methods with an electronic filing system for efficient and cost-effective information exchange. Afterward, the improved process model is implemented as an Internet based system to enhance the interactions among the transformer manufacturer, end-users, and service contractors for customized maintenance services. The case study demonstrates that implementing the e-integration approach increases the efficiency and effectiveness of the customized maintenance services.

关键词： Business Processes Reengineering (BPR) asset maintenance power industry after-sales services transformers engineering

Evolution of Gold Species in an Au/CeO_2 Catalyst and Its Impact on Activity for CO Oxidation

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Chemical Research in Chinese Universities 2010年第3期26卷 453-459页

作者： sun yong-an SHEN Yue-nian JIA Mei-lin GUO Jin-ling College of Chemistry and Chemical Engineering Inner Mongolia University for Nationalities Tongliao 028043 P. R. China College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China College of Chemistry and Environmental Science lnner Mongolia Normal University Hohhot 010020. P. R. China

An Au/ceria（0.44%, mass fraction） catalyst containing gold ions was prepared by a modified deposition precipitation method, and the evolution of gold ions in the catalyst and its influence on the catalysis of CO oxidation were investigated. It was found that the as-prepared catalyst containing gold ions with high valence could fully oxidize CO at -10 ℃ initially but was deactivated gradually at low temperatures during the reaction with CO or treatment by unpurified air. The deactivation of the catalyst during CO oxidation or treatment of it by unpurified air was independent and progressive at low temperatures while the activity of the catalyst at relatively high temperatures was maintained well. During the reaction with CO or treatment by unpurified air, the XPS results indicate that gold species evolved from high valence to low valence and the diffuse reflectance UV-Vis spectra show that high valence gold was reduced to charged gold clusters, gold clusters grew to small gold crystals and small gold crystals grew to large gold particles. Accordingly, the high valence gold corresponded to the activity at low temperatures and the metallic gold was active and relatively stable at high temperatures. The turnover frequencies（TOF） of the catalysts treated by different methods at 273 K decreased with the evolution of gold species from high valence to low valence, no maximum of TOF was observed although gold particles in the catalyst attained to about 2-3 nm during the treatment. An Au/ceria catalyst with a gold load of 0.87% （mass fraction） maintained a good activity for CO oxidation within 18 h at room temperature. The catalysts were characterized via transmitted electronic microscopy（TEM）, inductively coupled plasma optical emission spectrometry（ICP-OES）, X-ray diffraction（XRD） and BET specific surface area and UV-Vis DRS as well.

关键词： Gold catalyst CO oxidation UV-Vis DRS XPS Gold valence

Investigation of solution chemistry to enable efficient lithium recovery from low-concentration lithium-containing wastewater

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Frontiers of Chemical Science and Engineering 2020年第4期14卷 639-650页

作者： Chunlong Zhao Mingming He Hongbin Cao Xiaohong Zheng Wenfang Gao yong sun He Zhao Dalong Liu Yanling Zhang Zhi sun State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Beijing Engineering Research Center of Process Pollution Control Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Nottingham Ningbo China Ningbo 315100China Henan Bingsheng Biotechnology Company Limited Kaifeng 475103China

In the production of lithium-ion batteries(LIBs)and recycling of spent LIBs,a large amount of low-concentration lithium-containing wastewater(LCW)is *** recovery of Li from this medium has attracted significant global attention from both the environmental and economic *** achieve effective Li recycling,the features of impurity removal and the interactions among different ions must be ***,it is generally dificult to ensure highly efficient removal of impurity ions while retaining Li in the solution for further *** this study,the removal of typical impurity ions from LCW and the interactions between these species were systematically investigated from the thermodynamic and kinetics *** was found that the main impurities(e.g.,Fe^+,AIP^+,Ca^2+,and Mg^2+)could be efficiently removed with high Li recovery by control-ling the ionic strength of the *** mechanisms of Fe^3+,Al^+,Ca^2+,and Mg^2+removal were investigated to identify the controlling steps and reaction *** was found that the precipitates are formed by a zero-order reaction,and the activation energies tend to be low with a sequence of fast chemical reactions that reach equilibrium very ***,this study focused on Li loss during removal of the impurities,and the corresponding removal rates of Fe^+,Al^+,Ca^2+,and Mg^2+were found to be 99.8%,99.5%,99%,and 99.7%,***-quently,high-purity LisPO4 was obtained via one-step ***,this research demonstrates a potential route for the effective recovery of Li from low-concentra-tion LCW and for the appropriate treatment of acidic LCW.

关键词： lithium-containing wastewater lithium phos-phate precipitation impurity ion

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

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Chinese Journal of Chemistry 2021年第9期39卷 2467-2476页

作者： Liangqing Zhang Jiarong Qiu Xing Tang yong sun Xianhai Zeng Lu Lin School of Advanced Manufacturing Fuzhou UniversityJinjiangFujian 362251China College of Energy Xiamen UniversityXiamenFujian 361102China Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of High-valued Conversion Technology of Agricultural BiomassXiamen UniversityXiamenFujian 361102China

A series of catalysts were prepared for sugar alcohols production to overcome the deficiencies of the previous reported catalysts,such as low yield of sugar alcohols,single functi on,in stability,and con troversial role of active *** role of each metal and their syn ergistic-cooperati on was discussed in detail with a combi nation of conditional experiments and characterizati *** results indicated that bifunctional *** catalyst has unique structure with superparamagnetism and excellent ***(111)and(200)planes of metallic Ni are the hydrogenation active phases and preferentially exposed on Ni-Al-O_(x) *** desired arabitol or mannitol was obtained by tuning the ratio of Bronsted and Lewis acid *** recycling tests indicated that the unique structure of the prepared Ni-based catalyst can suppress leaching and poisoning,which has high textural stability and activity.

关键词： Biomass Heterogeneous catalysis Magnetic properties Br0nsted to Lewis acids Sugar alcohols

Clinical Efficacy and Safety of Miniscalpel-Needle Treatment for Tension-Type Headache:A Systematic Review and Meta-Analysis

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Chinese Journal of Integrative Medicine 2020年第9期26卷 713-720页

作者： Chan-Young Kwon Sang-Hoon Yoon sun-yong Chung Jong Woo Kim Department of Clinical Korean Medicine Graduate SchoolKyung Hee U niversitySeoul(02447)Republic of Korea Chung-Yeon Central Institute Gwang-juRepublic of Korea Department of Oriental Neuropsychiatry Kyung Hee University Hospital at GangdongSeoul(02447)Republic of Korea

Objective:To investigate the clinical efficacy and safety of miniscalpel-needle(MSN)treatment for tension-type headache(TTH).Method:Seven medical databases were searched to identify randomized controlled trials(RCTs)evaluating the effect and safety of MSN *** articles published up to November 15,2018 were retrieved.A meta-analysis was conducted for the included studies,and the risk of bias was *** outcomes were visual analogue scale(VAS)or numeric rating scale(NRS)*** outcomes were clinical effective rates including total effective rate(TER),markedly effective rate(MER),and totally cured rate(TCR)determined by improvement in clinical symptoms or VAS scores,the frequency of adverse events(AEs)that occurred during the study,and participant quality of life(QOL).Results:Seven RCTs involving 724 participants were *** treatment showed significantly higher MER and TCR[relative risk(RR)1.27,95%confidence interval(Cl)1.01 to 1.61;RR 1.31,95%Cl 1.09 to 1.57,respectively],but not TER(RR 1.03,95%Cl 0.96 to 1.10)compared to *** treatment plus conventional treatment showed significant lower VAS and higher TER,MER,and TCR(mean difference-3.54,95%Cl-3.80 to-3.28;RR 1.14,95%Cl 1.06 to 1.23;RR 2.31,95%Cl 1.50 to 3.58;RR 3.01,95%Cl 2.25 to 4.02,respectively)compared to conventional ***:According to current evidence,MSN treatment as a monotherapy or as an adjunctive treatment to other existing treatments might have benefits on treating ***,since the number and the sample size of studies included were both small and the methodological quality was poor,the findings of this review should be interpreted with great caution,and our confidence in the results is low.A high quality RCT using objective outcomes should be performed on this topic.

关键词： acupuncture acupotomy tension-type headache systematic review meta-analysis

Irreducible Representations of GL_(n)(C)of Minimal Gelfand-Kirillov Dimension

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Acta Mathematica Sinica,English Series 2024年第3期40卷 639-657页

作者： Zhan Qiang BAI Yang Yang CHEN Dong Wen LIU Bin yong sun School of Mathematical Sciences Soochow UniversitySuzhou 215006P.R.China School of Sciences JiangnanUniversityWui214122P.R.China School of Mathematical Sciences Zhejiang UniversityHangzhou 310058P.R.China Institute for Advanced Study in Mathematics Zhejiang UniversityHangzhou 310058P.R.China

In this article,by studying the Bernstein degrees and Goldie rank polynomials,we es-tablish a comparison between the irreducible representations of G=GL_(n)(C)possessing the minimal Gelfand-Kirillov dimension and those induced from finite-dimensional representations of the maximal parabolic subgroup of G of type(n-1,1).We give the transition matrix between the two bases for the corresponding coherent families.

关键词： Bernstein degree coherent continuation Gelfand-Kirillov dimension