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Projected Climate Change in the Northwestern Arid Regions of China: An Ensemble of Regional Climate Model Simulations

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Atmospheric and Oceanic Science Letters 2015年第3期8卷 134-142页

作者： YU En-Tao xiang wei-ling Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Climate Change Research Center Institute of Atmospheric Physics Chinese Academy of Sciences State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences

The projected temperature and precipitation- change under different emissions scenarios using Coupled Model Intercomparison Project Phase 5 models over the northwestern arid regions of China （NWAC） were ana- lyzed using the ensemble of three high-resolution dy- namical downscaling simulations： the simulation of the Regional Climate Model version 4.0 （RegCM4） forced by the Beijing Climate Center Climate System Model version 1.1 （BCC_CSMI.1）; the Hadley Centre Global En- vironmental Model version 3 regional climate model （HadGEM3-RA） forced by the Atmosphere-Ocean cou- pled HadGEM version 2 （HadGEM2-AO）; and the Weather Research and Forecasting （WRF） model forced by the Norwegian community Earth System Model （NorESM1-M）. Model validation indicated that the mul- timodel simulations reproduce the spatial and temporal distribution of temperature and precipitation well. The temperature is projected to increase over NWAC under both the 4.5 and 8.5 Representative Concentration Path- ways scenarios （RCP4.5 and RCP8.5, respectively） in the middle of the 21 st century, but the warming trend is larger under the RCP8.5 scenario, Precipitation shows a signifi- cant increasing trend in spring and winter under both RCP4.5 and RCPS.5; but in summer, precipitation is pro- jected to decrease in the Tarim Basin and Junggar Basin. The regional averaged temperature and precipitation show increasing trends in the future over NWAC; meanwhile, the large variability of the winter mean temperature and precipitation may induce more extreme cold events and intense snowfall events in these regions in the future.

关键词： northwestern arid regions regional climate model climate proiection

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High-Resolution Hindcast of Record-Breaking Rainfall in Beijing and Impact of Topography

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Atmospheric and Oceanic Science Letters 2013年第5期6卷 253-258页

作者： YU En-Tao SUN Jian-Qi xiang wei-ling Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences

In this paper,a hindcast study of the record-breaking rainfall event occurring in Beijing on 21July 2012,is conducted by using the Weather Research and Forecasting(WRF)model forced by National Centers for Environmental Prediction(NCEP)Global Forecasting System(GFS)outputs,paired with an investigation of the impact of topography in this *** results indicate that WRF can reasonably predict the salient features of orographic precipitation;the 24-h rainfall amount and spatial distribution compare reasonably well with the *** hindcast simulation also indicates that rainfall events can be predicted approximately 36 h *** the topography is removed,the spatial distribution of rainfall changes remarkably,suggesting the importance of the topography in determining rainfall *** results also indicate that prediction of such city-scale heavy rainfall events would benefit from a high-resolution prediction system.

关键词： record-breaking rainfall Beijing WRF topography

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Necrotizing fasciitis highly suspected as gas gangrene:A case report

Necrotizing fasciitis highly suspected as gas gangrene:A cas...

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2014年浙江省医学会烧伤外科学分会烧伤外科学学术年会

作者： xiang-wei ling Cai Lin Burn Department the First Affiliated HospitalWenzhou Medical College

A 48 year-old male patient who fevered for 8 days,being left limbs feeble for 5 days,being delirious for 2 days,came to our *** was a medical history of skin trauma ten days before he came to our hospital,he handled the wounds with Chinese herbal *** admission,systemic infection was serious,which caused multiple organs including brain,lung,liver,kidney injuring;the wounds had crepitus;and the X-ray showed that gas infringes muscle *** the patient was highly suspected as gas *** a few days,the bacterial and fungal culturing of bubble liquid and tissue showed klebsiella、multidrug-resistant staphylococcus haemolyticus.,multidrug-resistant staphylococcus *** the biopsy,we saw numerous neutrophils,a large number of necrotic fascias,damaged hemal *** to the result of culturing and biopsy,we diagnosed the illness as necrotizing *** had reported this kind of necrotizing fasciitis type I which involves muscle as synergistic necrotizing cellulitis,to which Bacillus cereus infection was the most ***,we did not find Bacillus cereus during *** the treatments of anti-infection,debridement,vaccum sealing drainage and skin grafting,the patient was finally healed.

关键词： necrotizing fasciitis gas gangrene synergistic necrotizing cellulitis

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Impact Factors on Outcomes of Patients with Necrotizing Fasciitis:Retrospective Analysis of a Nine Year Period

Impact Factors on Outcomes of Patients with Necrotizing Fasc...

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2016年浙江省烧伤外科学学术年会

作者： xiang-wei ling Cai Lin Department of Burn The First Affiliated Hospital of Wenzhou Medical University

Objectives:The aim of this study is to evaluate mortality-associated factors in patients with necrotizing fasciitis(NF),and offer a valid therapeutic option in the early ***:A retrospective review was performed for 85 patients who presented with NF from November 2007 to February *** on comorbidities,clinical manifestations,laboratory studies,APACHE Ⅱ score,treatments and outcomes were extracted for *** regression analysis was performed to assess impact factors on mortality ***:There were 85 patients,38 patients died,case-fatality rate was 44.7%.After adjustment for potential confounding covariates(age,oxygenation index,acute renal insufficiency,dysfunction of blood coagulation,platelet,bacteraemia,APACHE Ⅱ score,operative method),bacteraemia(odds ratio,8.992;95%confidence interval,1.412 to 57.279;P= 0.020),APACHE Ⅱ score(odds ratio,1.317;95%confidence interval,1.087 to 1.597;P= 0.005),operative method(odds ratio,0.038;95%confidence interval,0.007 to 0.212;P= 0.000) were independently associated with ***:Bacteraemia,APACHE Ⅱ score,operative method are significant risk factors for mortality in NF patients,and drainage is very important in the early time for this disease.

关键词： Necrotizing fasciitis Mortality Risk factors Drainage

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快中子临界装置逆动态法反应性测量系统研制与应用

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原子能科学技术 2014年第S1期48卷 160-164页

作者：李勐尹延朋荣茹项伟灵中国工程物理研究院核物理与化学研究所四川绵阳621900 中国工程物理研究院中子物理学重点实验室四川绵阳621900

逆动态法可实时、准确地测量反应性,在反应性部件刻度、扰动反应性效应测量、动力堆的瞬态分析等领域具有独特的优点。本文基于逆动态法研制了快中子临界装置反应性测量系统,并对其进行了算法验证与指标分析。实验结果表明,该系统具有... 详细信息

逆动态法可实时、准确地测量反应性,在反应性部件刻度、扰动反应性效应测量、动力堆的瞬态分析等领域具有独特的优点。本文基于逆动态法研制了快中子临界装置反应性测量系统,并对其进行了算法验证与指标分析。实验结果表明,该系统具有测量精度高、响应快、分辨率高、使用方便等优点,满足实验需求。

关键词：快中子临界装置逆动态法反应性测量

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基于PM_(2.5)来源解析的减排方案制定

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中国环境科学 2021年第5期41卷 2048-2055页

作者：许云凡王大玮向伟玲王自发中国科学院大气物理研究所大气边界层物理与大气化学国家重点实验室北京100029 中国科学院大学北京100049 中国科学院区域大气环境研究卓越创新中心福建厦门361021

为定量解析PM_(2.5)浓度与排放源削减比例之间的关系,利用WRF-NAQPMS/OSAM模式对2017年12月京津冀及周边地区“2+26”城市的PM_(2.5)浓度变化和来源解析进行了模拟,并基于来源解析结果对各城市进行了迭代减排实验.结果表明,各城市削减... 详细信息

为定量解析PM_(2.5)浓度与排放源削减比例之间的关系,利用WRF-NAQPMS/OSAM模式对2017年12月京津冀及周边地区“2+26”城市的PM_(2.5)浓度变化和来源解析进行了模拟,并基于来源解析结果对各城市进行了迭代减排实验.结果表明,各城市削减本地排放源的效果最为显著,由于受化学生成影响引起的排放源和PM_(2.5)浓度之间的高度非线性关系,使得线性减排方案具有较大的局限性.各城市排放源削减引起的PM_(2.5)浓度变化主要由排放源的一次贡献和化学生成的二次贡献组成,其中化学生成的二次贡献浓度与行业解析结果的函数之间存在显著的线性关系.随着排放源的削减,清洁期间PM_(2.5)浓度中各组分的浓度随之下降,污染期间硝酸盐、二次有机气溶胶、铵盐等浓度不降反升,这为迭代减排方案中物种的选择提供了指导意义.

关键词：京津冀 PM_(2.5) 来源解析排放清单迭代减排非线性关系

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Genetic polymorphism and mRNA levels of cytochrome P450ⅡE1 and glutathione S-transferase P1 in patients with alcoholic liver disease in different nationalities

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Hepatobiliary & Pancreatic Diseases International 2009年第2期8卷 162-167页

作者： Ying Liu,xiang-wei Meng,ling-Yun Zhou,Pei-Yi Zhang,Xun Sun and Ping Zhang Department of Gastroenterology,First Affiliated Hospital,Jilin University,Changchun 130021,China Department of Gastroenterology,Heilongjiang Province Hospital,Harbin 150036,China Department of Medical Molecular Biology,Harbin Medical University,Harbin 150086,China Department of Gastroenterology First Affiliated Hospital Jilin University Changchun 130021 China.

BACKGROUND:Alcohol abuse and dependence are major factors in the pathogenesis of alcoholic liver disease(ALD).Alcohol abuse is becoming an increasingly severe problem among the Han,Mongol,and Korean nationalities in northeast *** study aimed to investigate the relationship between ALD and the genetic polymorphism and expression levels of two enzymes,cytochrome P450ⅡE1(CYPⅡE1)and glutathione S-transferase P1(GSTP1)in patients of three ***:Peripheral blood was collected from 353 Chinese patients with ALD,300 alcohol dependent patients without liver disease(alcoholic),and 360 healthy *** group included patients from the Han,Mongol and Korean ***-time polymerase chain reaction(PCR)and PCR-restriction fragment length polymorphism(PCR-RFLP)were ***:Regardless of nationality,patients who carried the rare CYPⅡE1 C2 and GSTP1 Val alleles were at higher risk of *** frequency of C2 and Val in patients with ALD was respectively 50.00%and 26.98%in the Han,31.36%and 22.87%in the Mongol,and 45.87%and 22.02% in the Korean *** significant differences were seen in the frequency of either C2 or Val alleles in ALD patients among the three *** each nationality,the frequency of both C2 and Val alleles was significantly higher in ALD compared to alcoholic and healthy *** for nationality,the average mRNA levels of CYPⅡ E1 in ALD patients and healthy controls were 10.05%and 2.21%,*** average mRNA levels of GSTP1 in ALD patients and healthy controls were 0.53%and 2.12%,*** mRNA level of CYPⅡE1 was higher,and that of GSTP1 was lower in patients with ALD compared to the ***:Except for nationality,patients with ALD in this series tended to have a higher mRNA expression of CYPⅡE1 and to carry the C2 allele,and tended to have a lower mRNA expression of GSTP1 and to carry the Val *** is a causal relationship between the polymorphic alleles,which lea

关键词： alcoholic liver disease alcoholic genetic polymorphism mRNA expression

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空气重污染应急措施对北京市PM_(2.5)的削减效果评估

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中国环境科学 2015年第8期35卷 2546-2553页

作者：王凌慧曾凡刚向伟玲王自发杨文夷中国人民大学环境学院北京100872 中国科学院大气物理研究所大气边界层物理与大气化学国家重点实验室北京1000291

利用嵌套网格空气质量模式系统（NAQPMS）模拟了2013年1月10～14日一次典型的大气严重污染过程,并利用同期气象和污染物浓度的小时观测数据验证了NAQPMS的模拟结果.敏感性试验结果表明,在重污染期间,当仅实施《北京市空气重污染应急预... 详细信息

利用嵌套网格空气质量模式系统（NAQPMS）模拟了2013年1月10～14日一次典型的大气严重污染过程,并利用同期气象和污染物浓度的小时观测数据验证了NAQPMS的模拟结果.敏感性试验结果表明,在重污染期间,当仅实施《北京市空气重污染应急预案（试行）》一级预警中机动车单双号限行措施时,可削减北京PM2.5小时平均浓度4%～10%;当仅实施工业限产减排30%的措施时,可削减北京PM2.5小时平均浓度1%～6%;当同时实施机动车单双号限行和工业限产减排30%的措施时,可削减北京平均PM2.5小时平均浓度6%～12%,并且PM2.5小时浓度与削减率的变化趋势呈反相关,即该措施对污染较轻时段PM2.5浓度削减率高于污染峰值时段;若京津冀地区两市一省同时实施机动车单双号限行和工业限产减排30%的措施时,可削减重污染期间北京小时平均PM2.5浓度20%～35%,且污染严重的区域和时段削减效果更加显著,空气质量可提升一个等级.研究结果表明,当北京发生重污染时,仅靠北京本地限排限产并不能有效减轻PM2.5浓度,若要有效控制北京重污染,应根据污染物区域输送特征,京津冀地区实施大气污染联防联控。

关键词：空气重污染 PM2.5 应急预案削减效果嵌套网格空气质量模式系统(NAQPMS)

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基于可编程序控制器的零功率装置控制保护系统

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核动力工程 2006年第2期27卷 87-90页

作者：鲁艺苏敏杨成德李勐项伟灵四川大学成都610065 中国工程物理研究院核物理与化学研究所四川绵阳621900

采用可编程序控制器(PLC)构建了零功率装置控制保护系统。利用可编程序控制器的逻辑运算功能和I/O模块,模块化结构和冗余技术,实现了零功率装置控制保护系统的功能。通过系统半实物仿真调试,验证了系统的功能,证明了可编程序控制器可应... 详细信息

采用可编程序控制器(PLC)构建了零功率装置控制保护系统。利用可编程序控制器的逻辑运算功能和I/O模块,模块化结构和冗余技术,实现了零功率装置控制保护系统的功能。通过系统半实物仿真调试,验证了系统的功能,证明了可编程序控制器可应用于控制保护系统中。

关键词：可编程序控制器零功率装置控制系统

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CFBR-Ⅱ脉冲堆停堆过程物理分析

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原子能科学技术 2013年第3期47卷 355-358页

作者：李建胜高辉李勐王成项伟灵中国工程物理研究院核物理与化学研究所四川绵阳621900

依据中子增殖规律,应用点堆模型动态方程分析了CFBR-Ⅱ脉冲堆停堆的物理过程,发现坪区功率与预加反应性无关,原因是缓发中子产生强度与中子增殖两个相反因素互相抵消。利用两套10 B电离室分别测量获得了坪区功率和爆发脉冲后350s内堆功... 详细信息

依据中子增殖规律,应用点堆模型动态方程分析了CFBR-Ⅱ脉冲堆停堆的物理过程,发现坪区功率与预加反应性无关,原因是缓发中子产生强度与中子增殖两个相反因素互相抵消。利用两套10 B电离室分别测量获得了坪区功率和爆发脉冲后350s内堆功率的变化。该堆停堆过程中功率变化为:坪区时3.5MW,主安全块下降5mm时209kW,各部件外下限时4.8kW,30s时约60W。

关键词：脉冲堆停堆过程物理分析功率中子增殖

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