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Water quality characteristics along the course of the Huangpu River (China)

Journal of Environmental Sciences 2007年第10期19卷 1193-1198页

作者： YANG Hong-jun SHEN Zhe-min ZHANG jin-ping WANG Wen-hua School of Environmental Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China Xuhui District Environmental Protection Bureau Shanghai 200030 China Shanghai Environmental Monitoring Center Shanghai 200030 China

Huangpu River is about 114.5 km from upriver Dianfeng to downriver Wusong, near the estuary of the Yangtze River. It plays a key role in supplying water for production, life, shipment and irrigation. With the industrial development, the pollution of the Huangpu River has become serious recently. The biological oxygen demand （BOD）, total nitrogen （TN）, total phosphorus （TP）, oil, phenol and suspended solids （SS） were lower in the upstream sites than in the downstream sites, indicating pollutants being input along its course. Water quality was the worst in the Yangpu site, near the center of Shanghai City. Dissolved oxygen （DO） content was less than 2 mg/L in the site of Yangpu in July. Among relations between thirteen characteristics, relations between BOD, DO, TN, TP, NH4^＋ -N, NO3^- -N and the count of total bacteria or Escherichia coli were significant and interdependent. Inner relationships between these main characteristics in the Huangpu River were studied. High nutrient concentration led to growth of microorganisms, including E. coli. Degradation of organic matters and respiration of bacteria made oxygen concentration decreased in the water body, and DO was a key factor for nitrification-denitrification process of nitrogen. In the Yangpu site, DO was decreased to less than 3.0 mg/L with BOD higher than 7.5 mg/L in May and July. Low DO concentration will decrease nitrification rate. Nitrification need at higher DO value than other organic substrate oxidation. Consequently, river water contains low NO3^- -N values with high amounts of TN and NH4^＋ -N there. This will block the self-purification of surface water, by decreasing the rate of nitrification-denitrification transformation process in the water body.

关键词： water quality ecological assessment Huangpu River nitrification

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Optical switching properties of Pd-Ni thin-film top-capped switchable mirrors

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Frontiers of Materials Science 2015年第3期9卷 227-233页

作者： Xiao-Li ZHANG Shan-Hu BAO Xun CAO ping jin State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Dingxi Rd. 1295 Changning District Shanghai 200050 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

Switchable mirrors based on magnesium-nickel alloy thin films capped with catalytic Pd-Ni alloy thin films were prepared by a DC magnetron sputtering method. Their composition, structure and surface morphology were studied by XPS, XRD and AFM. Herein, the optical switching properties and durability of the switchable mirrors were investigated by varying the Ni content in the Pd-Ni alloys. Comparing pure Pd catalyst with Pd-Ni top-capped switchable mirrors, the latter show better hydrogenation and dehydrogenation kinetics, and the speed of hydrogen desorption is obviously improved with increasing Ni content in the Pd-Ni alloy. The Pd-Ni capped switchable mirrors also have better optical switching durability. The catalytic Pd layer with the addition of Ni does not influence the transmittance （hydride state） and reflectance （metallic state） of the switchable mirrors. In addition, replacing Pd with Pd-Ni alloy decreases the cost of the switchable mirrors： employing nickel in the alloy Pd89.2Ni10.8 can save about 11% use of Pd. Therefore, the Pd-Ni alloy can provide a cheaper catalytic thin film, and it is expected to have applications in energy-saving windows, hydrogen sensors and hydrogen storage materials.

关键词： magnesium alloy thin film hydrogen storage material Pd-Ni alloy smart window energy-saving material

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Analysis of moisture distribution within composite materials in hygrothermal environment

Analysis of moisture distribution within composite materials...

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第八届中国功能材料及其应用学术会议

作者： jin ping WANG De TAN Xiao-ming Qingdao Branch of Naval Aeronautical Engineering Institute Graduate Students Brigade of Naval Aeronautical Engineering Institute

ISBN: (纸本)9783037859698

The moisture absorption behavior of CCF300/BA9916 composites in 70℃ distilled water *** on the moisture absorption experiments,the moisture diffusivity and solubility were gained for FEM *** experiments results show that the moisture absorption behavior of CCF300/BA9916 composites basically conforms the Fickian’s second *** simulation results were coincided with the experimental data,the long-term absorption behavior and moisture distribution concentrations within the specimen were obtained.

关键词： Composites Moisture environment Distribution concentration

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Hierarchical self-assembly of crown ether based metal-carbene cages into multiple stimuli-responsive cross-linked supramolecular metallogel

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Science China Chemistry 2021年第7期64卷 1177-1183页

作者： Zi-En Zhang Yuan-Yuan An Bo Zheng jin-ping Chang Ying-Feng Han College of Chemistry and Materials Science Northwest UniversityXi'an 710127China School of Pharmaceutical Sciences Nanjing Tech UniversityNanjing 211816China

The hierarchical self-assembly(HSA) strategy widely utilized in biological systems has been applied in artificial systems to orchestrate small building blocks into complex functional architectures. The non-interfering interactions glue various building blocks together and produce new species with attractive properties. Herein, we functionalized NHC-based assemblies with orthogonal host–guest interaction to fabricate metal-carbene based supramolecular polymer gel. A series of unique crown etherappended cylinder-like trinuclear AuIhexacarbene assemblies [Au_(3)(L)_(2)](PF_(6))_(3)(L=D1–D4, A1–A4) were synthesized from the corresponding trisimidazolium salts H_(3)-L(PF_(6))_(3)(L=D1–D4, A1–A4) in which the N-wingtip of the imidazole moieties were substituted with three identical crown ether groups of different sizes(B15C5, B18C6, B21C7, DB24C8). The gold carbene assembly is able to complex six ammonium salts without disrupting the underlying metal-carbene cylinders. In addition, the supramolecular polymer metallogel featuring a multiple-responsiveness can be formed by using [Au_(3)(A_(4))_(2)](PF_(6))_(3) appended with DB24C8 as the core and bisammonium salt as the cross-linker. The case of introducing orthogonal interaction to NHC moiety by N-wingtip substitution demonstrates the feasibility and the power of such strategy to expand the NHC-based supramolecular system and endow them with novel properties.

关键词： N-heterocyclic carbene metallogel crown ether orthogonal interaction

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Effects of immunosuppressants after penetrating keratoplasty:meta-analysis of randomized controlled trials

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International Journal of Ophthalmology(English edition) 2011年第5期4卷 529-536页

作者： Xin Wei Xiao-Ming Chen Lin Wang jin-ping Song and Yin-ping Deng Department of Ophthalmology & Ophthalmic Laboratories West China Hospital Sichuan University Chengdu 610041 Sichuan Province China

AIM: To assess the effectiveness of immunosuppressants in the prophylaxis of corneal allograft rejection after high-risk keratoplasty and normal-risk keratoplasty. METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, CNKI, VIP and reference lists of articles. Date of most recent search: 18 June, 2011. All randomised controlled trials (RCTs) assessing the use of immunosupressants in the prevention of graft rejection, irrespective of publication language. Two authors assessed trial quality and extracted data independently. Only dichotomous outcomes (clear graft survival, ratio of immune reactions and side effects) were available and were expressed as relative risk (RR) and 95% confidence intervals (CI). RESULTS: Seven studies were included in this review. In the comparing of mycophenolate mofetil (MMF) with placebo, the results showed MMF could significantly reduce immune reactions compared with placebo (RR 1.08 95% Cl 0.95 to 1.21), but no effect on clear graft survival (RR 1.11 95% Cl 0.90 to 1.35). In clear graft survival and immune reactions, MMF and cyclosporine A (CsA) showed similar effect (RR 1.11 95% Cl 0.90 to 1.35, and RR 1.48, 95% Cl 0.56 to 3.93, respectively). Tacrolimus (FK506) and steroid showed similar effects on clear graft survival and immune reactions (RR 0.32, 95% CI 0.02 to 6.21, and RR 1.00, 95%CI 0.88 to 1.14, respectively). No drug relative side effect has been found. CONCLUSION: MMF may reduce immune reactions in both normal-risk and high-risk rejection of penetrating keratoplasty. CsA and FK506 showed similar effects as MMF. However, due to the lack of large clinical trials, the evidence remain weak, the quality of evidences were rated as very low to moderate. Large, properly randomised, placebo-controlled, double masked trials are needed to evaluate the effect of immunosuppressants.

关键词： immunosuppressants penetrating keratoplasty meta-analysis

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Xanthophyll Cycle and Inactivation of Photosystem Ⅱ Reaction Centers Alleviating Reducing Pressure to Photosystem Ⅰ in Morning Glory Leaves under Short-term High Irradiance

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Journal of Integrative Plant Biology 2007年第7期49卷 1047-1053页

作者： Xin-Guo Li Jian-Yong Li jin-ping Zhao ping-Li Xu Qi-Wei He. High-Tech Research Center Shandong Academy of Agricultural Sciences Ji' nan 250100 China Ji' nan Entry-exit Inspection Quarantine Bureau of the People's Republic of China Ji' nan 250100 China Vegetable Institute Shandong Academy of Agricultural Sciences Ji' nan 250100 China

Under 30-min high irradiance （1500μmol m^-2 s^-1）, the roles of the xanthophyll cycle and D1 protein turnover were investigated through chlorophyll fluorescence parameters in morning glory （Ipomoea setosa） leaves, which were dipped into water, dithiothreitol （DTT） and lincomycin （LM）, respectively. During the stress, both the xanthophyll cycle and D1 protein turnover could protect PSI from photoinhibition. In DTT leaves, non-photochemical quenching （NPQ） was inhibited greatly and the oxidation level of P700 （P700^＋） was the lowest one. However, the maximal photochemical efficiency of PSII （Fv/Fm） in DTT leaves was higher than that of LM leaves and was lower than that of control leaves. These results suggested that PSI was more sensitive to the loss of the xanthophyll cycle than PSII under high irradiance. In LM leaves, NPQ was partly inhibited, Fv/Fm was the lowest one among three treatments under high irradiance and P700^＋ was at a similar level as that of control leaves. These results implied that inactivation of PSII reaction centers could protect PSI from further photoinhibition. Additionally, the lowest of the number of active reaction centers to one inactive reaction center for a PSII cross-section （RC/CSo）, maximal trapping rate in a PSll cross-section （TRo/CSo）, electron transport in a PSll cross-section （ETo/CSo） and the highest of 1-qP in LM leaves further indicated that severe photoinhibition of PSII in LM leaves was mainly induced by inactivation of PSII reaction centers, which limited electrons transporting to PSh However, relative to the LM leaves the higher level of RC/CSo, TRo/CSo, Fv/Fm and the lower level of 1-qP in DTT leaves indicated that PSI photoinhibition was mainly induced by the electron accumulation at the PSI acceptor side, which induced the decrease of P700^＋ under high irradiance.

关键词： D1 protein high irradiance morning glory photoinhibition xanthophyll cycle.

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一个疯狂摄影师的“启示录”

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现代艺术 2019年第1期 26-29页

作者：金平四川省摄影家协会

在中国城镇化趋势下,时间争先恐后地粉刷着城市,不断刷新的精神意志在空间和时间中切换,构成了庞杂无序的城市化现象,我们来不及思考和定位,又被下一波洪流冲向了另一个彼岸。我也就是这样在多重身份挤压下成长起来的摄影师,与同龄人有... 详细信息

在中国城镇化趋势下,时间争先恐后地粉刷着城市,不断刷新的精神意志在空间和时间中切换,构成了庞杂无序的城市化现象,我们来不及思考和定位,又被下一波洪流冲向了另一个彼岸。我也就是这样在多重身份挤压下成长起来的摄影师,与同龄人有着共同的社会逻辑经历.

关键词：同龄人空间中国启示录摄影师时间意志洪流社会无序

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A Wireframe Model-Based Method for Automated Internal Design

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Wuhan University Journal of Natural Sciences 2016年第4期21卷 319-323页

作者： XU Xiaosheng jin ping ZHANG Lanxin School of Computer Wuhan University School of Urban Design Wuhan University

This paper proposes a wireframe model-based method for automated internal design. The method is used to extract geometric structure of an internal wireframe model and find out all loop structures of furniture models. The wireframe models are classified as the multiple independent sub-models according to the geometric structure by statistical analysis. The corresponding models are selected from a 3D model database to build an internal scene based on characteristic points of furniture wireframe models. In the experiments 3D database via manually selected 268 3D furniture models from Google 3D warehouse is built up. The experiments show that the method can construct 3D scenes in 1.1×103 ms. This method costs less time compared with traditional hierarchical method and depth-sensing camera method in the same experimental conditions. The method can be also used for 3D visualization either with complex backgrounds.

关键词： wireframe model statistical analysis automated internal design

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Simulation of the Direct Radiative Effect of Mineral Dust and Sea Salt Aerosols in a Doubled Carbon Dioxide Climate

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Atmospheric and Oceanic Science Letters 2013年第5期6卷 343-348页

作者： YUE Xu LIAO Hong TANG jin-ping Climate Change Research Center Chinese Academy of Sciences (CAS) Nansen-Zhu International Research Center Institute of Atmospheric Physics (IAP) School of Engineering and Applied Sciences Harvard University State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC) Key Laboratory of Middle Atmosphere and Global Environment Observation University of CAS

The authors examine the equilibrium climatic response to the direct radiative effect （DRE） of mineral dust and sea salt aerosols in a doubled-CO2 climate with two-way coupling of aerosol-climate *** response to the drier and windier conditions,dust emissions increase by 26％ in the Sahara Desert and by 18％ on the global scale relative to present *** salt emissions increase in high latitudes （＞60°） but decrease in middle latitudes （30°-60°） of both hemispheres due to the poleward shift of westerlies,leading to a 3％ decrease in global *** burdens of dust and sea salt increase by 31％ and 7％ respectively,because reductions in rainfall over the tropical oceans increase the lifetime of particles in the warmer *** higher aerosol loading in the doubled-CO2 climate reinforces aerosol DRE by -0.2 W m-2,leading to an additional cooling of 0.1℃ at the surface compared with the climatic effects of aerosols in present *** additional cooling from changes in natural aerosols compensates for up to 15％ of the regional warming induced by doubled CO2.

关键词： mineral dust sea salt aerosol direct radiative effect

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Fractional Brownian Motion and Sheet as White Noise Functionals

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Acta Mathematica Sinica,English Series 2006年第4期22卷 1183-1188页

作者： Zhi Yuan HUANG Chu jin LI Jian ping WAN Ying WU Department of Mathematics Huazhong University of Science and Technology Wuhan 430074 P. R. China

In this short note, we show that it is more natural to look the fractional Brownian motion as functionals of the standard white noises, and the fractional white noise calculus developed by Hu and Фksendal follows directly from the classical white noise functional calculus. As examples we prove that the fractional Girsanov formula, the Ito type integrals and the fractional Black-Scholes formula are easy consequences of their classical counterparts. An extension to the fractional Brownian sheet is also briefly discussed.

关键词： Fractional Brownian motion Fractional white noise functionals Fractional Girsanov formula Wick product

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