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Synthesis of Cyclic Carbonates from Alkenyl and Alkynyl Substrates

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Chinese Journal of Chemistry 2017年第5期35卷 541-550页

作者： Bo zou Changwen Hu Key Laboratory of Cluster Science Ministry of Education of ChinaSchool of Chemistry and Chemical Engineering Beo'ing Institute of Technology Beo'ing 100081 China

As an extensively used chemical product,cyclic carbonate was generally synthesized by transesterification,or the cycloaddition of epoxides,diols with *** reduce the production costs and expand the raw materials,alkenyl and alkynyl substrates have caused much attention in the synthesis of cyclic carbonates,such as olefins,allyl alcohols and propargylic *** on the alkenyl substrate,the synthetic process involves a continuous reaction of oxidative carboxylation,with epoxide or halohydrin as an intermediate ***,peroxides and nucleophiles （halogens or organic bases） are often necessary in the *** propargylic alcohols to produce a-alkylidene cyclic carbonates,noble metal catalysts play crucial roles in alkynyl activation,and organic bases are considered to assist the intramolecular and intermolecular proton transfer and combine CO2 *** the carboxyl sources in products,inorganic carbonates and organic carboxylic acids also have some applications instead of *** this review,we summarized the synthetic routes of cyclic carbonates from alkenyl and alkynyl substrates in the aspect of catalyst,mechanism and the development tendency.

关键词： cyclic carbonates CO2 conversion olefins propargylic alcohols

Bias characterization of ATMS low-level channels under clearsky and cloudy conditions

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Frontiers of Earth Science 2019年第2期13卷 277-289页

作者： Qi LI Xiaolei zou Joint Center of Data Assimilation for Research and Application College of Atmospheric ScienceNanjing University of Information Science and Technology (NUIST)Nanjing 210044China Earth System Science Interdisciplinary Center (ESSIC) University of MarylandCollege ParkMD 20740-3823USA

The Advanced Technology Microwave Soun? der (ATMS) onboard the Suomi National Polar-Orbiting Partnership satellite is a cross-track scanning instrument containing 22 sounding channels in *** this study,the bias characteristics of channels 1-6,which could have significant cloud contamination in heavy precipitation,are first analyzed based on the differences between ATMS observations (O) and model simulations (B) under clearsky conditions over *** dependencies of the biases of window channels 1-3 are greater than those of channels *** of all nadir-only observations examined in different latitudinal bands[μ1(φ)]are positive and no more than 7.0 *** at higher latitudes are *** 1-5 have a generally symmetric scan bias pattern [μ2(α)].The global distributions of brightness temperature differences after subtracting the biases,i.e.,O-B-μ1(φ)-μ2(α),for channels 3-6 spatially match the liquid water path *** ice-affected observations,channel 3-6 O-B differences systematically increase as the liquid water path increases under cloudy *** investigation is needed to apply these findings for ATMS data assimilation under both clear-sky and cloudy conditions.

关键词： ATMS O-B clear-sky bias characteristics impact of clouds on biases

系统性硬化症合并干燥综合征的临床特征分析及危险因素研究

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中国全科医学 2025年第6期28卷 737-741,750页

作者：邹松炎张日伊李孝东穆银玉浙江省宁波市医疗中心李惠利医院检验科 315040

背景系统性硬化症(SSc)是异质性疾病,常同时合并干燥综合征(SS),SSc患者部分症状与SS相似,临床诊治过程中容易漏诊SS。目的探讨SSc合并SS患者的临床和实验室特点及重叠发病的危险因素。方法回顾性纳入2019—2023年在宁波市医疗中心李惠... 详细信息

背景系统性硬化症(SSc)是异质性疾病,常同时合并干燥综合征(SS),SSc患者部分症状与SS相似,临床诊治过程中容易漏诊SS。目的探讨SSc合并SS患者的临床和实验室特点及重叠发病的危险因素。方法回顾性纳入2019—2023年在宁波市医疗中心李惠利医院住院治疗的SSc患者为研究对象,收集患者基线资料和实验室检查结果。依据是否合并SS将患者分为SSc组(n=91)和SSc合并SS组(n=36)。采用多因素Logistic回归分析探究SSc合并SS的危险因素。结果SSc合并SS组患者女性比例、病程、血液受累、局限性皮肤型SSc(lcSSc)、自身免疫性肝病比例高于SSc组,肺部受累比例、环磷酰胺使用比例低于SSc组(P<0.05)。SSc合并SS组患者血小板分布宽度、补体C4、抗硬皮病70抗体检出率低于SSc组,碱性磷酸酶、谷氨酰转肽酶、免疫球蛋白M(IgM)、抗着丝点蛋白B抗体(抗CENP-B抗体)、抗干燥综合征A/Ro52抗体(抗SSA/Ro52抗体)、抗干燥综合征A/Ro60抗体(抗SSA/Ro60抗体)、抗干燥综合征B抗体(抗SSB抗体)、抗线粒体M2抗体(AMA-M2)检出率高于SSc组(P<0.05)。多因素Logistic回归分析结果显示,IgM升高(OR=3.796,95%CI=1.021~14.115)、抗SSA/Ro52抗体阳性(OR=15.099,95%CI=1.750~130.264)、抗CENP-B抗体阳性(OR=11.681,95%CI=1.662~82.097)是SSc合并SS的独立危险因素(P<0.05)。结论SSc合并SS患者同时具备两者的特点,当SSc患者IgM偏高,抗SSA/Ro52抗体、抗CENP-B抗体阳性并出现相应临床症状时,应进行唇腺活检等系统全面的检查,以防漏诊。

关键词：硬皮病,系统性系统性硬化症干燥综合征临床特点实验室特点危险因素

Study and verification on dispersion coefficient in wave field

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Science China(Technological Sciences) 2012年第5期55卷 1443-1454页

作者： SHEN LiangDuo zou ZhiLi Department of Ocean Engineering Dalian University of TechnologyDalian 116024China

Transport and diffusion caused by coastal waves have different characteristics from those induced by flows. Through solving the vertical diffusion equation by an analytic method, this paper infers a theoretical formula of dispersion coefficient under the combined action of current and waves. It divides the general dispersion coefficient into six parts, including coefficients due to tidal current, Stokes drift, wave oscillation and interaction among them. It draws a conclusion that the contribution of dispersive effect induced by coastal waves is mainly produced by Stokes drift, while the contributions to time-averaged dispersion coefficient due to wave orbital motion and interaction between current and waves are very small. The results without tidal current are in agreement with the numerical and experimental results, which proves the correctness of the theoretical derivation. This paper introduces the variation characteristics of both the time-averaged and oscillating dispersion coefficients versus relative water depth, and demonstrates the physical implications of the oscillating mixing coefficient due to waves. We also apply the results to the costal vertical circulation and give its characteristics compared to Stokes drift.

关键词： dispersion coefficient longitudinal dispersion unsteady flow wave

Liquid Water Path Retrieval Using the Lowest Frequency Channels of Fengyun-3C Microwave Radiation Imager(MWRI)

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Journal of Meteorological Research 2017年第6期31卷 1109-1122页

作者： Fei TANG Xiaolei zou Joint Center of Data Assimilation for Research and Application College of Atmospheric ScienceNanjing University of Information Science &Technology State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological Administration Earth System Science Interdisciplinary Center University of Maryland College Park

The Microwave Radiation Imager （MWRI） on board Chinese Fengyun-3 （FY-3） satellites provides measurements at 10.65, 18.7, 23.8, 36.5, and 89.0 GHz with both horizontal and vertical polarization channels. Brightness temperature measurements of those channels with their central frequencies higher than 19 GHz from satellite-based microwave imager radiometers had traditionally been used to retrieve cloud liquid water path （LWP） over ocean. The results show that the lowest frequency channels are the most appropriate for retrieving LWP when its values are large. Therefore, a modified LWP retrieval algorithm is developed for retrieving LWP of different magnitudes involving not only the high frequency channels but also the lowest frequency channels of FY-3 MWRI. The theoretical estimates of the LWP retrieval errors are between 0.11 and 0.06 mm for 10.65- and 18.7-GHz channels and between 0.02 and 0.04 mm for 36.5- and 89.0-GHz channels. It is also shown that the brightness temperature observations at 10.65 GHz can be utilized to better retrieve the LWP greater than 3 mm in the eyewall region of Super Typhoon Neoguri （2014）. The spiral structure of clouds within and around Typhoon Neoguri can be well captured by combining the LWP retrievals from different frequency channels.

关键词： microwave remote sensing Fengyun-3C Microwave Radiation Imager (MWRI) liquid water path (LWP) retrieval

Preliminary Analysis of Influencing Factors of Low Visibility on a Hazy Day in Winter in Binzhou City

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Meteorological and Environmental Research 2018年第2期9卷 16-19页

作者： zou Meiling Zhang Chenxi Li Xueping Department of Resources and Environment Binzhou University

Based on the monitoring data of visibility,particulate matter（ PM2. 5 and PM10） and atmospheric pollutants（ SO2,NO2,CO,and O3）,and meteorological factors（ temperature,humidity,and wind speed） at the six automatic air monitoring stations in Binzhou City from December 2016 to February 2017,the correlations between visibility and influencing factors were analyzed to study the main influencing factors of atmospheric visibility. The results showed that the daily average concentration of particulate matter negatively correlated with atmospheric visibility,and the correlation between PM2. 5 concentration and atmospheric visibility was more obvious than that of PM10 concentration. Among atmospheric pollutants,the daily average concentration of CO,NO2 and SO2 also negatively correlated with atmospheric visibility,while there was a positive correlation between visibility and the daily average concentration of O3. Daily average temperature and wind speed positively correlated with visibility,while relative humidity negatively correlated with visibility. Wind speed,relative humidity and PM2. 5 had strong correlation with visibility,and the linear correlation coefficient R2 was 0. 501 6,0. 446 6,and 0. 205 8 respectively,so wind speed,relative humidity,and PM2. 5 were the main factors influencing the decrease of atmospheric visibility on a hazy day in winter.

关键词： Visibility PM2,5 Atmospheric pollutants Correlation

Finding Discontinuous Solutions to the Differential-Difference Equations by the Homotopy Analysis Method

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Chinese Physics Letters 2013年第2期30卷 11-15页

作者： zou Li zou Dong-Yang WANG Zhen ZONG Zhi School of Aeronautics and Astronautics Dalian University of TechnologyDalian 116085 State Key Laboratory of Structure Analysis for Industrial Equipment Dalian 116085 School of Naval Architecture and Ocean Engineering Dalian University of TechnologyDalian 116085 Department of Applied Mathematics Dalian University of TechnologyDalian 116085 Department of Mathematics Fluid Dynamics GroupImperial CollegeLondon SW72AZUK

An analytic method,namely the homotopy analysis method,is applied to nonlinear problems with discontinuity governed by the differential-difference *** analytic solutions are given for nonlinear problems with discontinuity with a global *** method provides a new analytical approach to solve nonlinear problems with *** are made between the results of the proposed method and the exact *** results reveal that the proposed method is very effective and convenient.

关键词： convergence. equation. solutions.

Mechanistic insights into cancer immunity and immunotherapy

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Cellular & Molecular Immunology 2018年第5期15卷 419-420页

作者： Weiping zou Departments of Surgery and Pathology The University of Michigan Comprehensive Cancer CenterGraduate Programs in Immunology and Cancer BiologyUniversity of Michigan School of MedicineAnn ArborMI 48109USA

While immunotherapy has had an important impact on cancer treatment,only approximately a quarter of patients respond to these *** does it work in some patients but not in other patients?How can we improve the therapeutic efficacy of current immunotherapy?Are there potential new strategies to tackle this problem?The answers to these questions may rely on our in-depth understanding of the basic mechanisms of the cancer immune response,immunotherapeutic efficacy,and resistance.

关键词： immunotherapy immunity cancer

Aharonov-Bohm-Type Electron Interference in a Two-Mode Squeezed Vacuum Field

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Chinese Physics Letters 1998年第6期15卷 393-394页

作者： SHAO Bin zou Jian Department of Applied Physics Beijing Institute of TechnologyBeijing 100081

Electron interference related to Aharonov-Bohm effect in the presence of the two-mode quantized radiation field is *** of the temporal behavior of electron interference are *** is shown that for the two-mode squeezed vacuum field the time evolution of the intensity of electron interference can exhibit very interesting periodic spontaneous collapse and revival(CR).In addition,the relation between CR and the quantum fluctuation in electron interference is also discussed.

关键词： Electron vacuum quantum