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Preparation and Photoluminescence of ZnO Nanostructures

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Chinese Journal of Aeronautics 2006年第B12期19卷 210-214页

作者： YAN Jin-liang zhao yin-nu SUN Xue-qing GUO Chun School of Physics and Electronic Engineering Ludong University Yantai 264025 China Dean＇s Office Ludong University Yantai 264025 China

Porous anodic alumina （PAA） hosts with ZnO nanoparticles loaded in were prepared by immersing PAA films in an aqueous solution of zinc acetate and then annealing at high temperatures. Highly ordered ZnO nanodot arrays were produced using the method in combination of PAA template with RF magnetron sputtering deposition. The photoluminescence of the ZnO/PAA composite and the highly ordered ZnO nanodot arrays were investigated by means of a fluorescent spectrometer. The ZnO/PAA composite exhibits intense and broad photoluminescence spectra with the peak position at around 485 nm. The ZnO nanodot arrays have a strong UV light emissive peak at about 380 nm and a wide light emissive peak at 460 nm-610 nm at the room temperature.

关键词： photoluminescence nanodot array nanoparticle zinc oxide

基于真实世界数据挖掘和分析阿替普酶不良事件性别差异

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海峡药学 2024年第6期36卷 101-104页

作者：张翠平郭亚强赵引利武安市第一人民医院药剂科河北邯郸056300

目的挖掘和分析阿替普酶药物不良事件(ADE)性别差异的信号,为临床用药提供参考。方法基于美国食品药品监督管理局不良事件报告系统(FAERS),采用报告比值比法(ROR)对2004年第1季度至2022年第4季度上报的阿替普酶的不良事件进行数据挖掘... 详细信息

目的挖掘和分析阿替普酶药物不良事件(ADE)性别差异的信号,为临床用药提供参考。方法基于美国食品药品监督管理局不良事件报告系统(FAERS),采用报告比值比法(ROR)对2004年第1季度至2022年第4季度上报的阿替普酶的不良事件进行数据挖掘和分析,重点分析阿替普酶性别差异的信号。结果检索到以阿替普酶为首要怀疑药物女2728例(27.21%)、男3348例(33.40%),女性易发生血颅内肿块、认知障碍、肿舌等;男性易发生胸痛、心脏停搏、心动过缓等。结论阿替普酶不良事件信号存在性别差异,在临床使用中时应注意性别带来的不良反应,及时采取干预措施。

关键词：阿替普酶药物不良事件性别差异信号挖掘

Effect of harmonic magnetic field and pulse magnetic field on microstructure of high purity Cu during electromagnetic direct chill casting

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China Foundry 2021年第2期18卷 141-146页

作者： Lei Bao Da-zhi zhao yin-ji zhao Yong-hui Jia Xuan Wang Qi-chi Le Key Lab of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang 110819China School of Materials Science and Engineering Northeastern UniversityShenyang 110819China

The effects of two types of magnetic fields,namely harmonic magnetic field(HMF)and pulse magnetic field(PMF)on magnetic flux density,Lorentz force,temperature field,and microstructure of high purity Cu were studied by numerical simulation and experiment during electromagnetic direct chill *** magnetic field is induced by a magnetic generation system including an electromagnetic control system and a cylindrical crystallizer of 300 mm in diameter equipped with excitation coils.A comprehensive mathematical model for high purity Cu electromagnetic casting was established in finite element *** distributions of magnetic flux density and Lorentz force generated by the two magnetic fields were acquired by simulation and experimental *** microstructure of billets produced by HMF and PMF casting was *** show that the magnetic flux density and penetrability of PMF are significantly higher than those of HMF,due to its faster variation in transient current and higher peak value of magnetic flux *** addition,PMF drives a stronger Lorentz force and deeper penetration depth than HMF does,because HMF creates higher eddy current and reverse electromagnetic field which weakens the original electromagnetic *** microstructure of a billet by HMF is composed of columnar structure regions and central fine grain *** contrast,the billet by PMF has a uniform microstructure which is characterized by ultra-refined and uniform grains because PMF drives a strong dual convection,which increases the uniformity of the temperature field,enhances the impact of the liquid flow on the edge of the liquid pool and reduces the curvature radius of liquid ***,PMF shows a good prospect for industrialization.

关键词： high purity Cu pulse magnetic field harmonic magnetic field microstructure sputtering target direct chill casting

Cilostazol inhibits plasmacytoid dendritic cell activation and antigen presentation

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Journal of Geriatric Cardiology 2015年第4期12卷 388-393页

作者： Fei SUN zhao yin Hai-Sheng YU Quan-Xing SHI Bei zhao Li-Guo ZHANG Shou-Li WANG Department of Cardiology The 306th Hospital of PLA No. 9 Anxiangbeili Street Beijing China CAS Key Laboratory of Infection and immunity Institute of Biophysics Chinese Academy of Sciences Beijing China

Background Cilostazol, an anti-platelet drug for treating coronary heart disease, has been reported to modulate immune cell functions Plasmacytoid dendritic cells （pDCs） have been found to participate in the progression of atherosclerosis mainly through interferon ct （IFN-ct） production. Whether cilostazol influences pDCs activation is still not clear. In this study, we aimed to investigate the effects of cilostazol on cell activation and antigen presentation ofpDCs in vitro in this study. Methods Peripheral blood mononuclear cells isolated by Ficoll cen- trifugation and pDCs sorted by flow cytometry were used in this study. After pretreated with cilostazol for 2 h, cells were stimulated with CpG-A, R848 or virus for 6 h or 20 h, or stimulated with CpG-B for 48 h and then co-cultured with naive T cell for five days. Cytokines in supernatant and intracellular cytokines were analyzed by ELISA or flow cytometry respectively. Results Our data indicated that cilostazol could inhibit IFN-α and tumor necrosis factor α （TNF-α） production from pDCs in a dose-dependent manner. In addition, the ability of priming na ve T cells of pDCs was also impaired by cilostazol. The inhibitory effect was not due to cell killing since the viability of pDCs did not change upon cilostazol treatment. Conclusion Cilostazol inhibits pDCs cell activation and antigen presentation in vitro, which may explain how cilostazol protects against atherosclerosis.

关键词： Antigen presentation Cilostazol Interferon α Plasmacytoid dendritic cell Tumor necrosis factor α

Contrast visual acuity after multifocal intraocular lens implantation: aspheric versus spherical design

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International Journal of Ophthalmology(English edition) 2014年第1期7卷 100-103页

作者： Jun-Hua Li Yi-Fan Feng Yun-E zhao yin-ying zhao Lei Lin School of Ophthalmology and Optometry the Eye Hospital of Wenzhou Medical University Zhejiang Eye Hospital Department of Ophthalmology Zhongshan HospitalFudan University

AIM: To evaluate contrast visual acuity(CVA) after implantation of an aspheric apodized diffractive intraocular lens(IOL) or a spherical apodized diffractive IOL in cataract surgery. ·METHODS: This prospective randomized controlled study with a 12-month follow-up compared the results of cataract surgery with implantation of an aspheric AcrySof ReSTOR SN6AD3 IOL(30 eyes) and a spherical AcrySof ReSTOR SN60D3 IOL(30 eyes). CVA with best distance correction was measured at 4 contrast levels(100%,25%,10% and 5%) under 3 levels of chart luminance [250,85 and 25 candelas per square meter(cd/m2)] using a multi-functional visual acuity tester(MFVA-100). ·RESULTS: At 12 months after surgery,there were no statistically significant differences in 100% CVA and 25% CVA under 250cd/m2(P100% =0.875 and P25% =0.057) and 85cd/m2(P100% =0.198 and P25% =0.193) between the aspheric group and the spherical group. However,the 10% CVA and 5% CVA were significant better in aspheric group than spherical group under 250cd/m2(P10% =0.042 and P5% = 0.007) and 85cd/m2(P10% =0.002 and P5%=0.039). Under the luminance level of 25cd/m 2,no significant differences was found in the 100% CVA between the 2 group(P100% = 0.245),while aspheric group had better visual acuity in the remaining 3 contracts(P25% =0.023,P10% =0.026 and P5% = 0.002,respectively). ·CONCULSION: The aspheric AcrySof ReSTOR SN6AD3 IOL provided patients with better low-contrast visual acuity than the spherical AcrySof ReSTOR SN60D3 IOL.

关键词： cataract surgery intraocular lens contrast sensitivity visual acuity

Book Review of “Fluvial Hydrodynamics:Hydrodynamic and Sediment Transport Phenomena”,*** Verlag,687 pages,ISBN 978-3-642-19061-2,by Subhasish Dey.

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International Journal of Sediment Research 2015年第1期30卷 90-91页

作者： zhao-yin WANG Hong-wei FANG Dept.of Hydraulic Engineering the State Key Laboratory of Hydroscience and EngineeringTsinghua University

The author,Prof Subhasish Dey,presents an up-to-date and comprehensive consideration of hydrodynamic principles to analyze sediment transport *** author is well known in the field of applied hydrodynamics and sediment transport,with wide experience in theoretical and applied *** book is intended for postgraduate and research students,who already have a decent knowledge and understanding of fluid mechanics,as well as for model developers and users of theoretical models in the fluvial hydrodynamics *** author's intention is to introduce the readers to the mechanics and physics of sediment transport by turbulent flow,

关键词： Book Review of Springer Verlag,687 pages,ISBN 978-3-642-19061-2,by Subhasish Dey Fluvial Hydrodynamics

Gender of large river deltas and parasitizing rivers

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International Journal of Sediment Research 2012年第1期27卷 18-36页

作者： zhao-yin WANG Guo-an YU He Qing HUANG Rui-yu WANG State Key Laboratory of Hydro-Science and Engineering Tsinghua University University of Illinois at Champain and Urbana Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Chairman of the Advisory Council of UNESCO International Research and Training Center on Erosion and Sedimentation

Deltas are the most dynamic part of large rivers and the characteristics of deltas reflect the basic nature of morphodynamics,ecology and anthropogenic *** authors investigated many deltas of large rivers,including the Yellow,Yangtze,Pearl,Rhine,Nile,Mississippi,Luanhe and Ebro *** were collected and sediment,water,benthic invertebrates and fish were sampled. Statistical analysis showed that deltas can be classified into male deltas and female *** deltas of the Yellow,Mississippi,Luanhe,Ural and Ebro rivers are male *** deltas extend into the ocean,each with only one or two channels,forming a *** development process is accompanied with periodic nodal or random *** deltas develop if the sediment load/water ratio is high and the tidal range is *** deltas of the Yangtze,Rhein-Meuse-Scheldt,Pearl and Irrawaddy rivers are *** deltas consist of complex channel networks and numerous bars and *** deltas develop if the load/water ratio is not high and tidal current is relatively *** deltas provide stable and multiple habitats for various ***,the biodiversity of female deltas and the taxa richness of benthic invertebrates and fish are much higher than that of male *** activities reduced sediment load and change the delta gender from male to *** rivers have high levees in their lower reaches and *** rivers originate from the levees of a male river and flow parallel with the river into the ***, persistence,length and stability of these rivers depend on the male river to which they are attached. Therefore,these rivers are named parasitizing *** general,parasitizing rivers have no tributaries and almost no drainage *** runoff of these rivers comes from the rainfall on the surrounding area,and therefore,the flow discharge exhibits very sharp peaks during *** Yellow and Luanhe rivers have many parasitizing rivers.

关键词： Classification of deltas Male and female rivers Morphology River patterns Parasitizing river Yellow River

South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales

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Advances in Climate Change Research 2023年第2期14卷 276-285页

作者： Ru-Cong YU Jian LI Ming-Ming ZHANG Ni-Na LI yin zhao State Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology Chinese Academy of Meteorological SciencesBeijing 100081China Department of Meteorology University of ReadingReading RG66AHUK National Meteorological Center China Meteorological AdministrationBeijing 100081China

Precipitation over the Tibetan Plateau and surrounding highlands is a crucial process in the hydrological cycle and is very important for local and downstream ecology,and previous research mainly focused on a certain range of timescales.A better understanding of the variability across various timescales,which has been largely ignored,can provide new insight on the regional weather and ***,a north‒south dipole pattern of precipitation shaped by a zonal dipole of the upper-tropospheric temperature is revealed in this *** dipole patterns of the precipitation and the accompanied temperature exist from daily to interdecadal *** three-dimensional circulation anomalies connecting the temperature and precipitation dipoles are consistent across various *** frequencies of daily events with opposite phases of the temperature dipole modulate the interannual and interdecadal variability in *** south drying and north wetting pattern over the Tibetan Plateau is an interdecadal manifestation of the precipitation dipole and can be ascribed to the temperature trend favourable for the positive phase of the zonal temperature *** consistent dipole pattern constructs a more complete portrayal of precipitation over the Tibetan Plateau from synoptic scale to climatology.

关键词： Tibetan plateau Dipole of precipitation Daily scale Interannual scale Interdecadal scale

Effect of Titanium on Methanol Synthesis from CO_2 Hydrogenation over Cu/γ-Al_2O_3

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Chinese Chemical Letters 2001年第6期12卷 537-540页

作者： Gong Xin QI Jin Hua FEI Xiao Ming ZHENG zhao yin HOU Institute of Catalysis Zhejiang University(Xixi Campus)Hangzhou 310028

Titanium-modified (-alumina supported CuO catalyst has been prepared and used to methanol synthesis from CO_2 hydrogenation. The addition of Ti to the CuO/(-Al_2O_3 catalyst made the copper in the catalyst exist in much smaller crystallites. The effect of the loading of Ti on the activity and selectivity to methanol from CO_2 hydrogenation was investigated. The activity was found to increase with the increasing of surface area of metallic copper, but it is not a linear relationship.

关键词： CO_(2) hydrogenation CuO/(-Al2O3-TiO2 methanol synthesis