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Acta Oceanologica Sinica 2013年第6期32卷 6-12页

作者： zheng bin LU Feng WEI Hongcheng Guangzhou Institute of Tropical and Marine Meteorology China Meteorological Administration Nanjing University of Information Science & Technology

The South China Sea summer monsoon （SCSSM） behaves with prominent climate variability from the in- traseasonal to interdecadal time scales. On the interannual time scale, the biennial variability （so-called tropospheric biennial oscillation, TBO） is as important as the E1 Nifio-Southem Oscillation （ENSO） period. Some observed data sets, including reanalysis data, are used to explore the associated air-sea interactive physical processes and how the SCSSM TBO affects the ENSO. The results show that the shearing vorticity induced by the north Indian Ocean sea surface temperature anomalies （SSTAs） and the anomalous Philip- pine Sea anticyclone both contribute to the TBO in the SCSSM. The results also indicate that the ENSO has a weak effect on the SCSSM TBO, whereas the latter affects the ENSO to some extent.

关键词： South China Sea monsoon tropospheric biennial oscillation El Nifio-Southern Oscillation

Recent advances in the synthesis and applications of furocoumarin derivatives

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Chinese Chemical Letters 2023年第9期34卷 119-133页

作者： Chaoyue Chen zheng-bin Tang Zhichang Liu School of Chemistry and Chemical Engineering Jiangsu University of TechnologyChangzhou 213001China Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province Department of ChemistrySchool of Science and Research Center for Industries of the FutureWestlake Universityand Westlake Institute for Advanced StudyHangzhou 310030China

Furocoumarins are an important class of heterocyclic compounds with a fused tricyclic structure of coumarin and furan *** are commonly found in bioactive natural products and have a diverse range of biological and pharmaceutical properties,including cytotoxicity,photosensitivity,insecticidal,antibacterial,and antifungal activity,among *** elegant linear/angular tricyclic skeleton and superior pharmacological properties,make them ideal for building and developing advanced biological scaffolds for biomedical *** a result,the family of furocoumarins has been the focus of intensive research,and lots of encouraging progress have been achieved in recent *** review summarizes the most recent methods reported for the synthesis of the furocoumarin derivative family,along with their applications in medicinal chemistry covering from 2018 to 2022.

关键词： Furocoumarin Coumarin Furan Synthesis Pharmaceutical activity Applications

Therapeutic plasma exchange for hyperlipidemic pancreatitis:Current evidence and unmet needs

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World Journal of Clinical Cases 2021年第21期9卷 5794-5803页

作者： Can-bin zheng Zi-Hui zheng Yong-Ping zheng Department of Endocrine and Metabolic Disease Shantou Central HospitalShantou 515031Guangdong ProvinceChina Nursing College Guangdong Pharmaceutical UniversityGuangzhou 510000Guangdong ProvinceChina Department of Gastroenterology Shantou Central HospitalShantou 515031Guangdong ProvinceChina

With changes in lifestyle and diet worldwide,the prevalence of hyperlipidemic acute pancreatitis(HLAP)has greatly increased,and it has become the most common cause of acute pancreatitis not due to gallstones or *** are many available therapies for HLAP,including oral lipid-lowering agents,intravenous insulin,heparin,and therapeutic plasmapheresis(TPE).It is believed that the risk and severity of HLAP increase with rising levels of serum triglycerides(TG),thus a rapid decrease in serum TG level is the key to the successful management of *** has emerged as an effective modality in rapidly reducing serum TG ***,due to its cost and accessibility,TPE remains poorly evaluated until *** studies revealed its efficacy in helping to treat and prevent the recurrence,while some studies suggested that TG levels were not correlated with disease severity,mortality,or length of hospital *** TPE might have no beneficial effect for the *** article gives an overview of the published evidence of TPE in the treatment of HLAP and outlines current evidence regarding individual outcome predictors,adverse effects of the procedure,and TPE in special occasions such as for pregnant patients and patients with diabetic *** direction of TPE research for HLAP is also discussed in this review.

关键词： Therapeutic plasma exchange Hyperlipidemic acute pancreatitis Evidence Outcome Future direction

Can the Prior Cathodic Polarisation Treatment Remove the Air-Formed Surface Film and Is It Necessary for the Potentiodynamic Polarisation Test?

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Acta Metallurgica Sinica(English Letters) 2020年第6期33卷 839-845页

作者： zheng-Rong Ye Zhi-Chao Qiu zheng-bin Wang Yu-Gui zheng Ran Yi Xiang Zhou Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China CAS Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

This paper clarifies two issues related to the prior cathodic polarisation treatment(PCPT) for the potentiodynamic polarisation test: whether PCPT can(1) remove the air-formed surface film and(2) affect the polarisation test results. X-ray photoelectron spectroscopy analyses of fluoride ion-labelled samples show that PCPT cannot remove the surface film completely due to the low reaction rate. Potentiodynamic polarisation tests demonstrate that PCPT with proper operating parameters,-1.0 V SCE for 5 min with subsequent open circuit potential(OCP) stabilisation in this study, is necessary because it can improve the test reproducibility without affecting the corrosion parameters by unifying the initial surface state. However, PCPT with lower potentials, longer time or no OCP stabilisation has significant effects on the electrochemical corrosion parameters due to the hydrogen absorption under the conditions of this study.

关键词： Stainless steel Prior cathodic polarisation treatment Surface film Potentiodynamic polarisation

Synthesis and Characterization of a Novel Functional Biodegradable Copolymer-Poly(lactic acid-4-hydroxyproline-polyethylene glycol)

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Chinese Chemical Letters 2006年第8期17卷 1125-1128页

作者： Jiu Fang DUAN Yu bin zheng Department of Polymer Science Dalian University of Technology Dalian 116012

A series of poly（lactic acid-4-hydroxyproline-polyethylene glycol）（PLA-Hpr-PEG） copolymers were synthesized by direct melt copolymerization of D,L-lactic acid and 4-hydroxyproline with different feed amount of polyethylene glycol （PEG） 0.1%, 0.5%, 1% and 5%, respectively. The properties of these copolymers were characterized by using IR spectroscopy, proton nuclear magnetic resonance （1H-NMR） spectroscopy, gel permeation chromatography （GPC）, X-ray diffraction and differential scaning calorimetry （DSC）. PLA-Hpr-PEG are amorphous copolymers. Copolymers showed increasing water uptake capacity with increasing PEG percentage in the feed, which result in an increasing degradable rate in phosphate buffer solution （pH 7.4） at 37℃.

关键词： Lactic acid 4-hydroxyproline polyethylene glycol.

Fourier Self-deconvolution Using Approximation Obtained from Frequency Domain Wavelet Transform as a Linear Function

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Chinese Chemical Letters 2006年第3期17卷 380-382页

作者： Yuan Zhen ZHOU Jian bin zheng Institute of Analytical Science/Shaanxi Provincial Key Lab of Electroanalytical Chemistry Northwest University Xi＇an 710069

A new method of resolving overlapped peak, Fourier self-deconvolution （FSD） using approximation CN obtained from frequency domain wavelet transform of F（ω） yielded by Fourier transform of overlapped peak signals f（t） as the linear function, was presented in this paper. Compared with classical FSD, the new method exhibits excellent resolution for different overlapped peak signals such as HPLC signals, and have some characteristics such as an extensive applicability for any overlapped peak shape signals and a simple operation because of no selection procedure of the linear function. Its excellent resolution for those different overlapped peak signals is mainly because F（ω） obtained from Fourier transform of f（t） and CN obtained from wavelet transform of F（ω） have the similar linearity and peak width. The effect of those fake peaks can be eliminated by the algorithm proposed by authors. This method has good potential in the process of different overlapped peak signals.

关键词： Fourier deconvolution wavelet transform signal processing HPLC signal

Group-based user pairing for virtual MIMO in LTE

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The Journal of China Universities of Posts and Telecommunications 2007年第3期14卷 38-42页

作者： QIAN Yu FAN bin zheng Kan Wireless Signal Processing and Network Laboratory Beijing University ofPosts and Telecommunications Beijing 100876 China

A user pairing method is proposed to improve the throughput gain of virtual multiple input multiple output （virtual MIMO） in 3G long-term evolution（LTE）. The approach taken in this study separated the user pairing into four steps： 1） the users are divided into two groups according to their signal-to-noise ratio （SNR）, and different user pairing metrics are proposed for each group; 2） the scheduler chooses a user for transmitting by a given rule; 3） the scheduler searches the pairing candidate for the selected user in each group; 4） the scheduler chooses the final pairing user from the co-group and crossover-group candidates by using a marginal utility function, to balance fairness and efficiency. The method can improve the throughput of users with high SNR, and guarantee fairness for users with low SNR, so it can be used in 3G LTE systems. The article provides both theoretical analysis and simulation results to support the idea.

关键词： virtual MIMO user pairing 3G LTE space division multiple access (SDMA)

Indoor field strength prediction based on FMM

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The Journal of China Universities of Posts and Telecommunications 2006年第3期13卷 20-23页

作者： WANG zheng-bin ZHANG Ye-rong College of Mathematics and Physics Nanjing University of Posts and Telecommunications Nanjing 210003 China College of Communication and Information Engineering Nanjing University of Posts and Telecommunications Nanjing 210003 China

In this article, the fast multipole method （FMM） is applied to analgze the field strength of an ultra-wideband （UWB） signal. Small coverage of UWB communication systems and high efficiency of the algorithm make it possible to calculate the amplitude of electric field accurately. A homogeneous dielectric body and a multilayered dielectric object are studied. The computational results obtained by applying the FMM agree well with those obtained by applying the method of moments （MoM）.

关键词： indoor field strength prediction fast multipole method FMM multilevel fast multipole algorithm (MLFMA)

Thermoelectric Properties of Ca_3Co_4O_9/Polyaniline Composites

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Journal of Materials Science & Technology 2014年第4期30卷 423-426页

作者： bin zheng Yuanhua Lin Jinle Lan Xiaoping Yang State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology State Key Laboratory of New Ceramics and Fine Processing Department of Materials Science and EngineeringTsinghua University

Ca3Co409/polyaniline bulk composites have been successfully fabricated by ball-milling and hot-pressing method. Our results indicate that the Seebeck coefficient can be increased nearly by 400% with adding 15 wt% 0a3Co409 to the polyaniline. The thermal conductivity changes slightly with increasing filler content. The highest figure of merit, ZT can reach 5× 10-4 at 329 K for these bulk composites, which is almost 50 times larger than that of pure polyaniline, suggesting that the polymer-thermoelectric oxide composites are promising candidates for light-weight, low-cost and non-toxic thermoelectric applications.

关键词： Polyaniline Ca3C0409 Thermoelectric Composite

Corrosion and impact-abrasion-corrosion behaviors of quenching- tempering martensitic Fe-Cr alloy steels

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Journal of Iron and Steel Research International 2022年第11期29卷 1853-1863页

作者： Zhi-bin zheng Jun Long Yi Guo Hui Li Kai-hong zheng Yan-xin Qiao Institute of New Materials Guangdong Academy of SciencesGuangdong Provincial Key Laboratory of Metal Toughening Technology and ApplicationGuangzhou 510650GuangdongChina Guangdong Provincial Iron Matrix Composite Engineering Research Center Guangzhou 510650GuangdongChina Jiangmen Guangjin Casting and Forging Co. Ltd.Jiangmen 529000GuangdongChina School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina

The corrosion and impact-abrasion-corrosion behaviors of quenching-tempering Fe-Cr martensitic steels for ball mill liner were investigated in the corrosive slurry of a copper mine compared with high manganese *** is found that the corrosion resistance and the protectiveness of the passive film of Fe-Cr martensitic steels became worse when the carbon content *** quenching-tempering Fe-Cr martensitic steel showed better impact-abrasion-corrosion resistance in the corrosive slurry compared with the high manganese steel,especially the alloy steel with the carbon content of 0.3 wt.%.The synergistic effect between mechanics and corrosion has also been analyzed to further reveal the impact-abrasion-corrosion mechanism of the *** damage from pure mechanics accounted for the largest percentage(over 65%)for all steels,demonstrating that mechanical damage played the most important role in the impact-abrasion-corrosion behaviors of the *** impact and cracking resistance of the steel should also be paid special attention during the development of new materials for ball mill liner.

关键词： Mining Abrasive wear Corrosive wear Impact wear Martensitic steel