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A New Method for Sorting Unknown Radar Emitter Signal

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Chinese Journal of Electronics 2014年第3期23卷 499-502页

作者： CheN Changxiao he Minghao XU Jing HAN Jun Air Force Early Warning Academy

Sorting rate of common method is not high and it is sensitive to the Signal noise ratio(SNR), in order to solve these problems, bispectrum two dimensions characteristics complexity is applied to sort unknown complicated radar signal and a high sorting rate would be got. The bispectrum of received signal is extracted and it is predigested to two dimensions characteristic, the box dimension and information dimension are extracted from the two dimensions characteristic and used as the sorting characteristics, and the last sorting is accomplished by using KFCM algorithm. For the bispectrum of different signal is distinguishing and it is not sensitive to SNR, the box dimension and information dimension are divisible and steady, the advantage of this new method is validated by simulation results, and the lowest sorting rate is 90% at SNR equals to 10 dB.

关键词： Sorting Bispectrum Box dimension Information dimension SNR

DRIFT Study on Cr2O3-SO42-/TiO2 Catalyst for Low Temperature Selective Catalytic Reduction of NO with NH3

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Chemical Research in Chinese Universities 2014年第2期30卷 279-283页

作者： ZHANG Yiming ZHANG he ZHOU Liang HAN Wei College of Physics Jilin University Changchun 130012 P.R.China National Key Lab of High Power Semiconductor Lasers Changchun University of Science and Technology Changchun 130022 P.R.China

Chromium oxides supported on TiO2 showed good activity for the selective catalytic reduction of NO by *** catalytic activity of Cr2O3-SO42-/TiO2 catalyst was greatly enhanced by the addition of SO42-into TiO2 *** catalyst surface properties were characterized with NH3-TPD（temperature programmed desorption） and H2-TPR（temperature programmed reduction）.The sulphate on the catalyst surface could enhance the acidity and redox of the catalyst *** reaction mechanism on this catalyst was researched in detail by in situ diffuse reflectance Fourier transform infrared（FTIR） ***-Rideal and Langmuir-Hinshelwood mechanism existed simultaneously for selective catalytic reduction（SCR） reaction of NO over Cr2O3-SO42-/TiO2 catalyst.

关键词： Nitric oxide Selective catalytic reduction Sulfate

Point-of-care detection of Microcystin-LR with a personal glucose meter in drinking water source

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Chinese Chemical Letters 2019年第5期30卷 1035-1037页

作者： Lifang Zhao Long Teng Juan Zhang he Li School of Chemistry and Chemical Engineering University of JinanJi'nan 250022China Shandong Product Quality Inspection Research Institute Ji'nan 250102China Environmental Engineering Co. Ltd.of Shandong Academy of Environmental SciencesJi'nan 250103China

In this study,a point-of-care sensing protocol has been reported for rapid and sensitive detection of Microcystin-LR(MC-LR)in water by personal glucose *** proposed immunosensor has been fabricated by using a primary antibody coated ZnFe2O4 nanoparticles to capture the target ***,the invertase@secondary antibody-conjugated graphene oxide-Au NPs can be immobilized for formating the sandwich immuno-complexes,which allowed for enzymatic conversion of sucrose to ***,the concentration of MC-LR can be refelected by the converted glucose,which can be easily measured by the personal glucose meter(PGM).The PGM readout immunosensing method possessed good reproducibility and stability,which may have significant potential for other applications.

关键词： Microcystin-LR Personal glucose meter Point-of-care detection Graphene oxide Immunoassay

A New Quantum Communication Scheme by Using Bell States

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Communications in Theoretical Physics 2006年第2期45卷 271-274页

作者： CAO Hai-Jing CheN Jing SONG he-Shan Department of Physics Dalian University of Technology Dalian 116024 China

A new quantum communication scheme based on entanglement swapping is presented. Simplified calculation symbols are adopted to realize the process. Quantum key distribution and quantum secure direct communication can be simultaneously accomplished in the scheme. Two legitimate communicators can secretly share four certain key bits and four random key bits via three EPR pairs （quantum channels）.

关键词： quantum key distribution quantum secure direct communication Bell-state measurements security

Effects of surface modifications on the physicochemical properties of iron oxide nanoparticles and their performance as anticancer drug carriers

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Chinese Chemical Letters 2018年第12期29卷 1829-1833页

作者： Lingling Guo Hong Chen Nongyue he Yan Deng State Key Laboratory of Bioelectronics National Demonstration Center for Experimental Biomedical Engineering EducationSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Economical Forest Cultivation and Utilization of 2011 Collaborative Innovation Center in Hunan Province Hunan Key Laboratory of Biomedical Nanomaterials and DevicesHunan University of TechnologyZhuzhou 412007China School of Materials Science and Energy Engineering Foshan UniversityFoshan 528000China

The feature of the surface coating can affect important properties of iron oxide nanoparticles(IONPs), it is therefore critical for further understanding how these materials react to physiological conditions, which is still needed to fully exploit the potential of IONPs for their theranostic applications. In this work, we prepared IONPs which surface were modified with citric acid(CA), chitosan(CS) and folic acid conjugated chitosan(FA-g-CS). respectively. Their physicochemical properties were investigated using FT-IR, TEM,powder XRD, VSM, TGA, DLS and zeta potential. We found that CA-IONP dispersion was composed of monocrystalline particles while CS-IONP and FA-g-CS-IONP were composed of polycrystalline aggregates. All IONPs retained the crystalline structure of magnetite and exhibited the superparamagnetic behavior. Their saturation magnetization decreased with the increase in the amount of their organic coatings. Their drug loading capacities, drug release patterns and in vitro anticancer efficiencies were studied by using doxorubicin(DOX) as a model drug. DOX@CS-IONP and DOX@FA-g-CSIONP exhibited lower drug loading while showing higher water dispersity when compared with DOX@CA-IONP. All IONPs were surface charged and they tended to agglomerate in medium with high pH value and ionic strength. In the presence of chitosan or FA-g-CS coatings, their DOX release rate was slowed down compared with that of DOX@CA-IONP. Unloaded IONPs exhibited nearly no cytotoxicity on both cancer cells and normal cells in the presence of chitosan and FA-g-CS when compared with CA-IONP which presented high cytotoxicity. However, DOX@FA-g-CS-IONP showed significantly cytotoxicity on folate receptors(FRs) positive breast cancer cells while exhibiting nearly no cytotoxicity on FRs negative normal cells. Results presented in this study were valuable to the design and fabrication of IONPs-based system for better theranostic applications.

关键词： Iron oxide nanoparticles Surface modification Physicochemical property Drug delivery Chitosan Folic acid

Partial intestinal obstruction secondary to multiple lipomas within jejunal duplication cyst: A case report

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World Journal of Gastroenterology 2010年第17期16卷 2190-2192页

作者： Wan, Xin-Yue Deng, Tao Luo, he-Sheng Wuhan Univ Dept Gastroenterol Renmin Hosp Wuhan 430060 Hubei Province Peoples R China

Lipoma within jejunal duplication presenting as abdominal bloating and partial intestinal obstruction is an exceptional clinical *** report a case of 68-year-old man complaining of abdominal bloating for 10 d due to multiple lipomas arising from jejunal duplication *** a few cases of a single lipoma within a Meckel’s diverticulum giving rise to this clinical scenario have been reported in the English language ***,no case of multiple lipomas within jejunal duplication cysts has been *** present a case in which doubleballoon endoscopy revealed a small intestinal structure changed into Meckel’s diverticulum-like cavities containing several *** case highlights intestinal lipoma as an uncommon cause of adult intussusceptions,which should be included in the differential diagnosis of small intestinal obstruction and appropriate examinations should be chosen.

关键词： Duplication cyst Lipoma Double-balloon endoscopy Jejunum Intestinal obstruction

Measurements of the equivalent thicknesses of three-dimensional spiral galactic disks

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Research in Astronomy and Astrophysics 2009年第8期9卷 883-887页

作者： Gang Li Zhi-Quan Luo Qiu-he Peng Institute of Theoretical Physics China West Normal University Nanchong 637002 China Department of Astronomy Nanjing University Nanjing 210093 China

Spiral arms are fitted after the data from the latest spiral galactic images released by the Sloan Digital Sky Survey are processed. Equivalent thicknesses of 42 spiral galactic disks are derived, which increase the f... 详细信息

关键词： galaxies spiral -- Galaxy disk

Syntheses and Antiproliferative Activities of Novel Diarylthiosemicarbazide Derivatives

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Chemical Research in Chinese Universities 2013年第1期29卷 62-66页

作者： ZHAI Xin he Ying YANG Zhen GONG Ping Key Laboratory of Structure-Based Drug Design & Discovery Ministry of Education School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang 110016 P. R. China

A series of novel N-methylpicolinamide-moiety containing diarylthiosemicarbazide derivatives was prepared and evaluated for their in vitro antiproliferative activity against three cancer cell lines（human alveolar epithelial cell A549, human lung cancer cell H460 and human colorectal cancer cell HT-29） by 3-（4,5-dimethyl）thiazolyldiphenyltetrazoliumromide（MTT） assay. Six compounds（Tb--7g） with halogen substituents exhibited preferable cytotoxicity against one or more cell lines in a low micromolar range. Especially, the most promising compound 7g exhibited remarkable antiproliferative activity with the IC50 values of 2.2, 1.8 and 5.2 μmol/L against A549, H460 and HT-29 cell lines respectively, which is comparable to sorafenib.

关键词： Thiosemicarbazide N-methylpicolinamide Antiproliferative activity

Countermeasures of heavy metal pollution

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Chinese Journal Of Geochemistry 2013年第4期32卷 446-450页

作者： ZHAI Shengjia XIAO he SHU Yan ZHAO Zhijie Appraisal Center for Environment & Engineering Ministry of Environmental Protection China University of Petroleum China University of Geosciences Environment Development Center of Ministry of Environmental Protection Shandong Gold Mining Co.Ltd

This article gives a review on heavy metal pollution prevention and control,and it also discusses heavy metal pollutant discharge,prediction and evaluation of environmental impact,and pollution prevention and monitoring.

关键词：重金属污染环境影响评价污染防治污染物排放 ing 监测