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Numerical study of the seasonal salinity budget of the upper ocean in the Bay of Bengal in 2014

Journal of Oceanology and Limnology 2021年第4期39卷 1169-1187页

作者： qingyue wang Changming DONG Junde LI Jingsong YANG Qing TIAN School of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China

Impact factors on the salinity budget, especially the eddy salt fluxes and smaller-scale diffusive salt fluxes for the upper 50 m of the Bay of Bengal(BoB) in 2014 are investigated using a box model based on the Regional Ocean Modeling System(ROMS) daily outputs. The model results reproduce that the precipitation and river runoff s are the dominant factors modulating the sharp salinity decrease during the summer monsoon season. The analysis shows that the salinity increase after the summer monsoon is mostly due to the meridional advective and diffusive salt fluxes. The vertical advective salt flux, which is sensitive to the different signals of the wind stress curl, plays an important role in balancing the salinity change induced by the meridional advective salt flux during both the summer and winter monsoon seasons. Distinctive spatial mesoscale structures are presented in the eddy salt flux throughout the year, and their contributions are sizeable(over 30% in the meridional direction and about 10%–30% in the vertical direction). The meridional eddy salt flux is larger in the monsoon seasons than that in the inter-monsoon seasons, and in a positive pattern near the western boundary during the winter monsoon and autumn inter-monsoon. The vertical eddy salt flux makes an important contribution to the salinity budget, especially along the coastal area and around the Andaman and Nicobar Islands. The vertical eddy salt flux becomes large when a tropical cyclone passes the area.

关键词： salinity budget Bay of Bengal Regional Ocean Modeling System(ROMS) monsoon eddy flux

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Progress of polymer reaction engineering:From process engineering to product engineering

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Chinese Journal of Chemical Engineering 2022年第10期50卷 3-11页

作者： Pingwei Liu Jigang Du Yuting Ma qingyue wang Khak Ho Lim Bo-Geng Li State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China

Polymer reaction engineering studies the design,operation,and optimization of reactors for industrial scale polymerization,based on the theory of polymerization kinetics and transfer processes(e.g.,flow,heat and mass transfer).Although the foundation and development of this discipline are less than80 years,the global production of polymers has exceeded 400 million tons per *** demonstrates that polymer reaction engineering is of vital importance to the polymer *** with the matu rity of production processes and market saturation for bulk polymers,emerging industries such as information technology,modern transportation,biomedicine,and new energy have continued to *** a result,the research objective for polymer reaction engineering has gradually shifted from maximizing the efficiency of the polymerization process to the precise regulation of high-end product-oriented macro molecules and their aggregation structures,i.e.,from polymer process engineering to polymer product *** this review,the frontiers of polymer reaction engineering are introduced,including the precise regulation of polymer chain structure,the control of primary aggregation structure,and the rational design of polymer *** narrow down the topic to the polymerization reaction engineering of vinyl ***,the future prospects are provided for the field of polymer reaction engineering.

关键词： Controlled polymerization Polymer chainstructure Primary aggregationstructure Rational design Numerical controlmanufacturing

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Study of a water-soluble supramolecular complex of curcumin andβ-cyclodextrin polymer with electrochemical property and potential anti-cancer activity

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Chinese Chemical Letters 2022年第8期33卷 4043-4047页

作者： wang Zhang Ping Xiao Liwei Lin Fang Guo qingyue wang Yuanzhe Piao Guowang Diao School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Department of Applied Bioengineering Graduate School of Convergence Science and TechnologySeoul National UniversitySuwon 443-270Republic of Korea Shanghai Suni Biotechnology Development Co. Ltd.Shanghai 201300China Advanced Institutes of Convergence Technology Suwon 443-270Republic of Korea

As a member of the curcuminoid compound family,curcumin(Cur)has many interesting therapeutic ***,its low aqueous solubility and stability have resulted in poor bioavailability and restricted clinical *** on size matching,β-cyclodextrin polymer(β-CDP),with its hydrophilic polymer chains and hydrophobic cavities,can form an inclusion complex with *** improve the water solubility and stability of Cur,a simple and eco-friendly grinding method was designed to formβ-CDP inclusion *** to the Boltzmann-Hamel's method and Job's method,the molar ratio of theβ-CD unit inβ-CDP to Cur was determined to be 1:*** diffusion coefficient and diffusion activation energy of Cur-β-CDP were calculated in an electrochemical *** supramolecular complex worked well in vitro to inhibit the proliferation of hepatoma carcinoma cells ***,this method visibly reduced the undesirable side effects on normal cells,without weakening the anti-cancer activity of the *** expect that the obtained host-guest complex will provide a new approach for delivering natural drug molecules,having low water solubility.

关键词： Cyclodextrin polymer Curcumin Solubility Anti-cancer activity Supramolecular complex

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Numerical analysis of mode locking in multi-core photonic crystal fiber

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Chinese Science Bulletin 2010年第18期55卷 1864-1869页

作者： FANG XiaoHui HU MingLie LI YanFeng CHAI Lu wang qingyue Ultrafast Laser Laboratory Key Laboratory of Optoelectronic Information Science and Technology of Ministry of Education College of Preci-sion Instruments and Optoelectronics Engineering Tianjin University Tianjin 300072 China

With linearly coupled nonlinear Schrodinger equations,numerical analysis has been performed on the mode locking forming procedure of a fiber laser in the linear cavity *** fiber is Yb-doped multi-core photonic crystal fiber and semiconductor saturable absorber mirror(SESAM) is adopted as the nonlinear transmission element to start mode *** of the noise randomness,initial pulse would be picked out by SESAM in one or more cores which makes the multi-core mode locking quite different from single-core *** two situations are compared and fully *** locking in multi-core photonic crystal fiber laser can be realized only if the couple coefficient between the cores and the temporal overlap between the pulses in different cores are large enough.

关键词：光子晶体光纤激光器模式锁定数值分析耦合非线性薛定谔方程多芯光子晶体纤维非线性传输可饱和吸收

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Size distribution of chemical elements and their source apportionment in ambient coarse, fine, and ultrafine particles in Shanghai urban summer atmosphere

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Journal of Environmental Sciences 2012年第5期24卷 882-890页

作者： Senlin Lu Rui Zhang Zhenkun Yao Fei Yi Jingjing Ren Minghong Wu Man Feng qingyue wang Shanghai Applied Radiation Institute School of Environmental and Chemical engineeringShanghai UniversityShanghai 201800China Graduate School of Science and Engineering Saitama University255 Shimo-OkuboSatura-KuSaitama CitySaitama 338–8570Japan

Ambient coarse particles （diameter 1.8-10 μm）, fine particles （diameter 0.1-1.8 μm）, and ultrafine particles （diameter 〈 0.1 μm） in the atmosphere of the city of Shanghai were sampled during the summer of 2008 （from Aug 27 to Sep 08）. Microscopic characterization of the particles was investigated by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy （SEM/EDX）. Mass concentrations of Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Rb, Sr, and Pb in the size-resolved particles were quantified by using synchrotron radiation X-ray fluorescence （SRXRF）. Source apportionment of the chemical elements was analyzed by means of an enrichment factor method. Our results showed that the average mass concentrations of coarse particles, fine particles and ultrafine particles in the summer air were 9.38 ± 2.18, 8.82 ± 3.52, and 2.02 ± 0.41 μg/m3, respectively. The mass percentage of the fine particles accounted for 51.47% in the total mass of PM10, indicating that fine particles are the major component in the Shanghai ambient particles. SEM/EDX results showed that the coarse particles were dominated by minerals, fine particles by soot aggregates and fly ashes, and ultrafine particles by soot particles and unidentified particles. SRXRF results demonstrated that crustal elements were mainly distributed in the coarse particles, while heavy metals were in higher proportions in the fine particles. Source apportionment revealed that Si, K, Ca, Fe, Mn, Rb, and Sr were from crustal sources, and S, Cl, Cu, Zn, As, Se, Br, and Pb from anthropogenic sources. Levels of P, V, Cr, and Ni in particles might be contributed from multi-sources, and need further investigation.

关键词： airborne size-resolved particles chemical elements distribution source apportionment

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Relationships between chemical elements of PM2.5 and O3 in Shanghai atmosphere based on the 1-year monitoring observation

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Journal of Environmental Sciences 2020年第9期32卷 49-57页

作者： Junyang Zeng Luying Zhang Chuanhe Yao Tingting Xie Lanfang Rao Hui Lu Xinchun Liu qingyue wang Senlin Lu School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Institute of Desert Meteorology China Meteorological AdministrationUrumqi 83002China School of Science and Engineering Saitama UniversitySaitama 338-8570Japan

Mass level of fine particles(PM2.5)in main cities in China has decreased significantly in recent years due to implementation of Chinese Clean Air Action Plan since 2013,however,03 pollution is getting worse than before,especially in megacities such as in *** this work,O3 and PM2.5 were continuously monitored from May 27,2018 to March 31,*** data showed that the annual average concentration of PM2.5 and O3(O3-8 hr,maximum8-hour moving average of ozone days)was 39.35±35.74 and 86.49±41.65μg/m3,*** concentrations of PM2.5 showed clear seasonal trends,with higher concentrations in winter(83.36±18.66μg/m3)and lower concentrations in summer(19.85±7.23μg/m3),however,the seasonal trends of O3 were different with 103.75±41.77μg/m3 in summer and58.59±21.40μg/m3 in *** mass backward trajectory,analyzing results of potential source contribution function model and concentration weighted trajectory model implied that pollutants from northwestern China contributed significantly to the mass concentration of Shanghai PM2.5,while pollutants from areas of eastern coastal provinces and South China Sea contributed significantly to the mass level of ozone in Shanghai *** concentration of twenty-one elements in the PM2.5 were investigated,and their relationships with O3 were *** level of ozone had good correlation with that of Ba(r=0.64,p0.05),suggesting vehicle emission pollutants contribute to the increasing concentration of ozone in Shanghai atmosphere.

关键词： pollution ozone elements

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EFFECT OF CARBON CONTENT ON PROPERTIES OF SLACK-QUENCHED RAILS

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Acta Metallurgica Sinica(English Letters) 1992年第5期5卷 349-353页

作者： ZHOU qingyue wang Shuqing SHAO Yangdao NIE Shufan ZHOU Zhenguo China Academy of Railway Sciences,Beijing China Acad of Railway Science Beijing China

A comparative investigation was carried out of the routine mechanical properties,fracture toughness,microstructure and hardness of slack-quenched rails containing different carbon *** the rails slack-quenched,their strength and toughness,together with ductility, are obviously improved,and the higher the quench hardening is,the more the resistance to wear and shell will *** was also made of the reason for this improvement and of the effect of carbon content and quench hardening on the properties of rails in combination with the rail-laying trial.

关键词： carbon content slack-quenched rail property

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Studies on relationships between air pollutants and allergenicity of Humulus Scandens pollen collected from different areas of Shanghai

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Journal of Environmental Sciences 2020年第9期32卷 43-48页

作者： Senlin Lu Chuanhe Yao Shumin Zhou Yichun Lin Luying Zhang Junyang Zeng Lanfang Rao Wei Zhang Yafeng Dai Hong Li Weiqian wang qingyue wang School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Lab of Plant Cell Biology Shanghai Key Laboratory of Bio-Energy CropsSchool of Life SciencesShanghai UniversityShanghai 200444China Shandong University of Science and Technology Qingdao 266590China Chinese Research Academy of Environmental Sciences Beijing 100021China School of Science and Engineering Saitama UniversitySaitama 338-8570Japan

Pollen pollution and allergy are becoming prominent issues in ***,few studies on pollinosis have been *** an allergen in the atmosphere,allergenic Humulus scandens pollen was collected from four districts of Shanghai,including Wusong(WS),Jiading(KD),Xujiahui(XJH) and Songjiang(SJ).The mass concentrations of SO2,NO2,O3,PM10,and PM2.5(particulate matter with air dynamic diameter less than 10 and 2.5 um,respectively) near the four sampling sites were also recorded during Humulus scandens pollen *** allergenicity of the Humulus scandens pollen was assessed by using of a rat model and enzyme linked immunosorbent assay(ELISA).Relationships between the allergenicity and air pollutants were *** results demonstrated that the biological viability of the pollens collected from the four districts exhibited no significant *** and dot blotting results further demonstrated that the serum of sensitized rats exhibited much higher immune-reactive response than that of control *** blotting showed that the 15 KD(1 KD=1000 dalton) proteins of Humulus pollen led to the allergic *** allergenic intensity of Humulus pollen protein from different samples followed the pattern:WS> JD> XJ> *** was a negative relationship between the allergenicity of Humulus pollens and PM10(R=-0.99)/PM2.5(R=-0.73),and a positive relationship with O3(R=0.92).These data clearly showed that PM10 and PM2.5 could enhance Humulus pollen protein release,and 03 could aggravate the allergenicity of the Humulus pollen.

关键词： (ELISA) pollution China.

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Investigation of spectral bandwidth of BBO-I phase matching non-collinear optical parametric amplification from visible to near-infrared

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Frontiers of Optoelectronics 2008年第Z1期1卷 101-108页

作者： Bo LIU Ruobing ZHANG Huagang LIU Jing MA Chen ZHU qingyue wang College of Precision Instrument and Opto-electronics Engineering Key Laboratory of Optoelectronics Information and Technical Science Tianjin University

Laser sources which have high power, short time duration and are broadly tunable are needed for the application of ultra-fast lasers. Femtosecond optical parametric amplification(OPA) is one of the most important techniques to produce broadly tunable and several femtosecond laser pulses. To obtain an extremely short pulse, the femtosecond OPA should adequately support a large spectral bandwidth. Ultra-broadband type-I phase matching OPA based on BBO was theoretically investigated. The achromatic phase matching(APM) technology was introduced to femtosecond OPA, and a broadband phase matching condition was given when the signal beams were angularly *** methods were presented to choose the optimized non-collinear angle and angular dispersion. Effects of non-collinear angle and rate of angular dispersion to the parametric bandwidth were also discussed. The results indicate that a proper non-collinear angle of the noncollinear optical parametric amplifier(NOPA) and getting signal beams dispersed at the right rate in nearinfrared conditions can increase the parametric bandwidth dramatically.

关键词： nonlinear optics broadband femtosecond optical parametric amplification (OPA) angular dispersion group velocity matching

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Atmospheric HULIS and its ability to mediate the reactive oxygen species (ROS)： A review

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Journal of Environmental Sciences 2018年第9期30卷 13-31页

作者： Myat Sandar Win Zhengyang Tian Hui Zhao Kai Xiao Jiaxian Peng Yu Shang Minghong Wu Guangli Xiu Senlin Lu Shinich Yonemochi qingyue wang School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China East China University of Science and Technology (ECUST) Shanghai 200237 China Centers for Environmental Science in Saitama Saitama 374-0115 Japan School of Science and Engineering Saitama University Saitama 338-8570 Japan

Atmospheric humic-like substances （HULIS） are not only an unresolved mixture of macro- organic compounds but also powerful chelating agents in atmospheric particulate matters （PMs）; impacting on both the properties of aerosol particles and health effects by generating reactive oxygen spedes （ROS）. Currently, the interests of HULIS are intensively shifting to the investigations of HULIS-metal synergic effects and kinetics modeling studies, as well as the development of HULIS quantification, findings of possible HULIS sources and generation of ROS from HULIS. In light of HULIS studies, we comprehensively review the current knowledge of isolation and physicochemical characterization of HULIS from atmospheric samples as well as HULIS properties （hygroscopic, surface activity, and colloidal） and possible sources of HULIS. This review mainly highlights the generation of reactive oxygen species （ROS） from PMs, HULIS and transition metals, especially iron. This review also summarized the mechanism of iron-organic complexation and recent findings of OH formation from HULIS-metal complexes. This review will be helpful to carry out the modeling studies that concern with HULIS-transition metals and for further studies in the generation of ROS from HULIS-metal complexes,

关键词： Atmospheric HULIS Reactive oxygen species (ROS) Transition metals Characterization methods

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