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N235浸渍树脂的制备及对钒的吸附研究

稀有金属 2018年第8期42卷 891-896页

作者：陈波包申旭张一敏武汉理工大学资源与环境工程学院湖北武汉430070 矿物资源加工与环境湖北省重点实验室湖北武汉430070 武汉科技大学资源与环境工程学院湖北武汉430081

以N235为萃取剂，XAD-16HP多孔吸附树脂为载体，制备了N235浸渍树脂，确定了最佳的萃取剂浓度为50％。采用静态吸附实验法探究了在硫酸体系下溶液pH、钒浓度、吸附温度及时间等因素对N235浸渍树脂吸附钒的影响。研究结果表明：N235浸渍... 详细信息

以N235为萃取剂，XAD-16HP多孔吸附树脂为载体，制备了N235浸渍树脂，确定了最佳的萃取剂浓度为50％。采用静态吸附实验法探究了在硫酸体系下溶液pH、钒浓度、吸附温度及时间等因素对N235浸渍树脂吸附钒的影响。研究结果表明：N235浸渍树脂吸附V（V）的最佳pH为1．8左右。V（V）的等温吸附曲线符合Freundlich等温吸附模型。V（V）的吸附反应为吸热反应。25℃条件下，N235浸渍树脂对V（V）的吸附平衡时间为10h。N235浸渍树脂循环使用过程中，开始吸附容量有明显的下降，循环7次后吸附容量趋于稳定，循环9次后吸附容量为初始的77．83％，这表明N235浸渍树脂多次循环使用后仍保持较高的吸附容量，可用于含钒溶液的分离富集。

关键词： N235浸渍树脂钒吸附分离热力学

Analysis of surface temperature bias over the Tibetan plateau in the CAS FGOALS-f3-L model

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Atmospheric and Oceanic Science Letters 2021年第1期14卷 69-75页

作者： Yao Wu yimin Liu Jiandong Li Qing bao Bian He Lei Wang Xiaocong Wang Jinxiao Li State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

The Chinese Academy of Sciences Flexible Global Ocean-Atmosphere-Land System atmospheric component model(FGOALS-f3-L)participated in Phase 6 of the Coupled Model Intercomparison Project,but its reproducibility of surface temperature(T_(s))over the Tibetan Plateau(TP)as a key climatically sensitive region remains *** study evaluates the capability of FGOALS-f3-L in reproducing the climatological T_(s)over the TP relative to the Climate Forecast System *** results show that FGOALS-f3-L can reasonably capture the spatial pattern of T_(s)but underestimates the annual mean T_(s)for the whole *** simulated T_(s)for the whole TP shows a cold bias in winter and spring and a warm bias in summer and *** quantitative analysis based on the surface energy budget equation shows that the surface albedo feedback(SAF)term strongly contributes to the annual,winter,and spring mean cold bias in the western TP and to the warm bias in the eastern *** with the SAF term,the surface sensible and latent heat flux terms make nearly opposite contributions to the T_(s)bias and considerably offset the bias due to the SAF *** cloud radiative forcing term strongly contributes to the annual and seasonal mean weak cold bias in the eastern *** longwave radiation term associated with the overestimated water vapor content accounts for a large portion of the warm bias over the whole TP in summer and *** land surface and cloud processes in FGOALS-f3-L is critical to reduce the T_(s)bias over the TP.

关键词： Tibetan Plateau Surface temperature FGOALS-f3-L Surface energy budget equation Cloud radiation

特高压变电站短路电流直流分量对接地网设计的影响

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高电压技术 2017年第5期43卷 1621-1627页

作者：邹家勇余波包维瀚吴怡敏中国电力工程顾问集团西南电力设计院有限公司成都610021

特高压变电站系统短路电流直流分量衰减时间常数较常规变电站大,使得短路电流中的直流分量衰减缓慢,从而影响接地网的设计。首先对衰减时间常数取值进行了研究,提出在接地设计时直流分量衰减时间常数应按150 ms考虑。在此基础上,采用公... 详细信息

特高压变电站系统短路电流直流分量衰减时间常数较常规变电站大,使得短路电流中的直流分量衰减缓慢,从而影响接地网的设计。首先对衰减时间常数取值进行了研究,提出在接地设计时直流分量衰减时间常数应按150 ms考虑。在此基础上,采用公式计算和软件仿真方法研究了短路电流直流分量对接地网导体选择、人身安全校验及避雷器反击的影响。研究结果表明:当考虑直流分量时,接地导体截面将较不考虑直流分量时增加约20%,同时,由于故障入地电流中含有直流分量,使得地电位升高及电击机理不同,会导致等效电击电流增大1倍,大大增加运行人员触电危险。另外,直流分量导致的地电位升高还会增加站内低压避雷器反击概率,在极端情况下,10 kV低压避雷器反击时需要吸收的能量高达282 kJ,从而导致避雷器发生爆炸等严重事故。因此,在特高压变电站接地网设计时应充分考虑上述影响,根据可能出现的直流分量及其衰减时间改进接地网设计。

关键词：特高压变电站直流分量接地网跨步电压避雷器地电位升

水轮机过流部件材料的冲蚀磨损腐蚀及其交互作用

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西安交通大学学报 2010年第11期44卷 66-70,118页

作者：鲍崇高高义民邢建东西安交通大学材料科学与工程学院西安710049

通过对含沙水域水电站水轮机过流部件的4种典型材料(55钢、20SiMn、1Cr18Ni9Ti和0Cr13Ni5Mo)在冲蚀磨损过程中的电化学腐蚀及冲蚀磨损性能研究,区分出纯磨损、纯腐蚀、磨损对腐蚀的促进分量及腐蚀对磨损的促进分量在材料失效过程中各自... 详细信息

通过对含沙水域水电站水轮机过流部件的4种典型材料(55钢、20SiMn、1Cr18Ni9Ti和0Cr13Ni5Mo)在冲蚀磨损过程中的电化学腐蚀及冲蚀磨损性能研究,区分出纯磨损、纯腐蚀、磨损对腐蚀的促进分量及腐蚀对磨损的促进分量在材料失效过程中各自所占的比例,考查了试验材料的冲蚀磨损特性以及磨损与腐蚀间的交互作用,分析了失效机制.结果表明:材料的冲蚀磨损质量损失率随冲蚀速度和浆料含沙量的增加而增大;冲蚀角在0°～45°范围内变化时,冲蚀磨损质量损失率随冲蚀角增大而增大,当冲蚀角超过45°后,质量损失率随冲蚀角增大而减小;在多泥沙冲蚀磨损条件下,材料纯磨损的质量损失占总质量损失的62%～92%,是材料破坏的主要方式,腐蚀是次要的;磨损对腐蚀的促进作用随冲蚀强度的增大而加强,其对材料流失的作用不可忽视.

关键词：水轮机冲蚀磨损腐蚀交互作用

A tree-ring-based reconstruction of the yimin River annual runoff in the Hulun Buir region,Inner Mongolia,for the past 135 years

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Chinese Science Bulletin 2012年第36期57卷 4765-4775页

作者： bao Guang LIU Yu LIU Na Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province Baoji University of Arts and SciencesBaoji 721013China The State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710075China Department of Environmental Science and Technology School of Human Settlements and Civil EngineeringXi'an Jiaotong University Xi'an 710049.China

Based on the relationships between the regional tree-ring chronology(RC) of moisture-sensitive Pinus sylvestris *** and the monthly mean maximum temperature,annual precipitation and annual runoff,a reconstruction of the runoff of the yimin River was performed for the period *** model was stable and could explain 52.2% of the variance for the calibration period of *** the past 135 years,21 extremely dry years and 19 extremely wet years *** years represented 15.6% and 14.1% of the total study period,*** severe drought events lasting two years or more occurred in 1950-1951,1986-1987,1905-1909,1926-1928,1968-1969 and *** wetter events occurred during 1954-1959,1932-1934,1939-1940 and *** with other tree-ring-based streamflow reconstructions or chronologies for surrounding areas supplied a high degree of confidence in our *** spectrum and wavelet analyses suggested that the reconstructed annual runoff variation in the Hulun Buir region and surrounding area could be associated with large-scale atmospheric-oceanic variability,such as the Pacific Decadal Oscillation(PDO) and El Ni o-Southern Oscillation(ENSO),and sunspot activity.

关键词：呼伦贝尔地区年径流量伊敏河内蒙古基础太平洋年代际振荡樟子松人工林平均最高气温

某快铁地下车站集中供冷站冷水输配方案优选探讨

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暖通空调 2013年第2期43卷 91-95页

作者：鲍成宇肖益民重庆大学

运用基本传热原理建立了系统模型和传热模型,进行了传热理论计算,分析了采用不同厚度绝热层的管道流体温升及冷量损失。运用经济技术方法分析了输配系统初投资和运行管理费用。对比了采用分用二级水泵、合用二级水泵两种方案的优劣。结... 详细信息

运用基本传热原理建立了系统模型和传热模型,进行了传热理论计算,分析了采用不同厚度绝热层的管道流体温升及冷量损失。运用经济技术方法分析了输配系统初投资和运行管理费用。对比了采用分用二级水泵、合用二级水泵两种方案的优劣。结果表明,合泵方案较分泵方案在初投资和运行费用上均有优势。

关键词：地铁车站集中供冷站冷水输送方案经济性

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泸水县滑坡孕灾环境因素敏感性研究

自然灾害学报 2016年第4期25卷 109-119页

作者：蒋德明李益敏鲍华姝云南大学资源环境与地球科学学院云南昆明650091 云南省地理研究所云南昆明650091

滑坡灾害的发生对社会经济及人民生命财产造成了重大损失,开展孕灾环境敏感性研究具有重要的意义。以滑坡灾害频发区——泸水县为研究对象,选取高程、坡度、坡向、道路、河流、岩土体类型、断裂带及土地利用8个因子,采用确定性系数概率... 详细信息

滑坡灾害的发生对社会经济及人民生命财产造成了重大损失,开展孕灾环境敏感性研究具有重要的意义。以滑坡灾害频发区——泸水县为研究对象,选取高程、坡度、坡向、道路、河流、岩土体类型、断裂带及土地利用8个因子,采用确定性系数概率模型分析滑坡易发敏感性,并通过敏感性指数模型分析各个因子对滑坡灾害发生的影响程度,确定有利于滑坡发生的条件,绘制了泸水县区域内滑坡敏感性分区图。结果表明:中等及以上级别的敏感区域内发生的滑坡灾害数量占总数的92.36%,滑坡灾害与孕灾环境敏感性分析具有较好的吻合性;分析结果对泸水县滑坡防治有一定的借鉴作用。

关键词：泸水县滑坡孕灾环境敏感性

An Introduction to the Coupled Model FGOALS1.1-s and Its Performance in East Asia

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Advances in Atmospheric Sciences 2010年第5期27卷 1131-1142页

作者：包庆吴国雄刘屹岷杨静王在志周天军 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences ESPRE Beijing Normal University Beijing Climate Center China Meteorological Administration

The spectral version 1.1 of the Flexible Global Ocean–atmosphere–land System （FGOALS1.1-s） model was developed in the State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophys- ical Fluid Dynamics at the Institute of Atmospheric Physics （LASG/IAP）. This paper reports the major modifications to the physical parameterization package in its atmospheric component, including the radiation scheme, convection scheme, and cloud scheme. Furthermore, the simulation of the East Asian Summer Monsoon （EASM） by FGOALS1.1-s is examined, both in terms of climatological mean state and interannual variability. The results indicate that FGOALS1.1-s exhibits significant improvements in the simulation of the balance of energy at the top of the atmosphere： the net radiative energy flux at the top was 0.003 W m-2 in the 40 years fully coupled integration. The distribution of simulated sea surface temperature was also quite reasonable, without obvious climate drift. FGOALS1.1-s is also capable of capturing the major features of the climatological mean state of the EASM： major rainfall maximum centers, the annual cycle of precipitation, and the lower-level monsoon circulation flow were highly consistent with observations in the EASM region. Regarding interannual variability, simulation of the EASM leading patterns and their relationship with sea surface temperature was examined. The results show that FGOALS1.1-s can reproduce the first leading pattern of the EASM and its close relationship with the decaying phase of the ENSO. However, the model lacked the ability to capture either the second major mode of the EASM or its relationship with the developing phase of the ENSO.

关键词： East Asian Summer Monsoon ocean–atmosphere–land model climatological mean state in-terannual variability ENSO

CAS FGOALS-f3-H and CAS FGOALS-f3-L outputs for the high-resolution model intercomparison project simulation of CMIP6

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Atmospheric and Oceanic Science Letters 2020年第6期13卷 576-581页

作者： bao Qing LIU yimin WU Guoxiong HE Bian LI Jinxiao WANG Lei WU Xiaofei CHEN Kangjun WANG Xiaocong YANG Jing ZHANG Xiaoqi State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Earth and Planetary Science University of Chinese Academy of SciencesBeijingChina School of Atmospheric Sciences/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Chengdu University of Information TechnologyChengduChina Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs and Ministry of Education Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina School of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjingChina

The High Resolution Model Intercomparison Project(HighResMIP)is a unique model intercomparison project in phase 6 of the Coupled Model Intercomparison Project(CMIP6),which is focused on the impact of horizontal *** outputs of the high-and low-resolution versions of CAS FGOALS-f3-H and CAS FGOALS-f3-L for the experiments of the HighResMIP simulations in CMIP6 are described in this *** models and their configurations,experimental settings,and postprocessing methods are all *** FGOALS-f3-H,with a 0.25°horizontal resolution,and CAS FGOALS-f3-L,with a 1°horizontal resolution,were forced by the standard external conditions,and two coordinated sets of simulations were conducted for 1950–2014 and 2015–50 with the Experiment IDs of‘highresSST-present’and‘highresSST-future’,*** model outputs contain multiple time scales including the required hourly mean,three-hourly mean,six-hourly transient,daily mean,and monthly mean *** is reported that the 0.25°CAS FGOALS-f3-H successfully simulates some of the key challenges in climate modeling,including the average lifetime of tropical cyclones,particularly in the western parts of the northern Pacific Ocean,and the diurnal cycle of hourly *** datasets will contribute to the benchmarking of current models for CMIP,and studies of the impacts of horizontal resolutions on climate modeling issues.

关键词： CMIP6 HighResMIP FGOALS-f3-H FGOALS-f3-L tropical cyclone diurnal cycle hourly precipitation