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| 1 | 基于土壤属性的VIC模型基流参数估计框架显示文摘'异参同效'现象是水文模型参数率定过程中的一个难题。为了减少需要率定的模型参数个数,从而降低模型参数的相互作用,构建了利用土壤属性直接估计VIC(Variable Infiltration Capacity)模型3个基流参数的框架,并在3个位于不同水文气候条件下的典型流域中作了实例研究。传统的VIC模型参数估计方法需要率定6个参数;而在新的参数估计框架下,需要率定的模型参数从6个减少为3个。蒙特卡罗模拟结果表明新的参数估计框架提高了参数的敏感性。同时,新的参数估计方法模拟的径流过程和之前通过率定得到的径流过程差别很小。GLUE(Generalised Likelihood Uncertainty Estimation)方法分析得到径流模拟的不确定性结果表明:新的参数估计框架计算径流的90%置信区间要明显小于传统方法,而且对于低流量的模拟效果更加明显,也就是说采用新的参数估计框架可以显著降低径流模拟的不确定性。这种基流参数估计方法可以被应用于其他相似的水文模型中。 | 鲍振鑫 张建云 刘九夫 王国庆 FU Guobin 贺瑞敏 严小林 | 2013 | 水科学进展2013,24,2: | 12 |
| 2 | Vegetation dynamics induced by groundwater fluctuations in the lower Heihe River Basin,northwestern China显示文摘Aims Since 2000,the environmental flow controls project has been implemented in the lower Heihe River Basin,a typical arid inland river basin in northwest China,to restore the deteriorated ecological environment in this region.The aim of this study was to explore the impacts of groundwater fluctuations on vegetation dynamics.Our results can be used as a reference for water resources planning and management to maintain proper environmental flows in arid areas.Methods The location(by Global Positioning System)and depth of the monitoring wells,as well as groundwater table depth and salinity were measured in situ at each site from July to August 2009.Based on the measurements of the groundwater table depth and salinity following the implementation of environmental flow controls project(EFCP)in the lower Heihe River Basin,the groundwater fluctuations during the period from 2001 to 2009 were analyzed.Descriptive statistics and Pearson’s correlation were used to analyze the relationship between vegetation changes and groundwater table fluctuations.Additionally,the spatial distributions of the groundwater table depth and salinity were interpolated using the simple kriging method.Trend analysis was applied to the time series of integrated Moderate Resolution Imaging Spectroradiometer normalized difference vegetation index data to identify interannual vegetation dynamics.The relationship between vegetation status and groundwater environment was investigated at different spatial scales by analyzing and comparing the time series and trends.Important Findings(i)The groundwater table and salinity increased significantly in most of the study area with spatial heterogeneity.On average,the groundwater table rose;0.5 and 1.5 m in the upper and lower Ejina Basin,respectively,and the groundwater salinity increased across the study area by 0–4%.(ii)A notable correlation between the vegetation status and the groundwater table was revealed when the groundwater table depth fluctuated between 1.8 and 3.5 m,whereas the vegetation did not show an obvious response to groundwater table changes when the groundwater table depth was more than 5–6 m.(iii)Vegetation restoration mainly occurred in riparian areas within 500–1000 m of from natural rivers,where the groundwater table depth varied from 2 to 4 m,and salinity was<5%,whereas vegetation degradation appeared at some locations where groundwater environment had deteriorated. | Ping Wang Yichi Zhang Jingjie Yu Guobin Fu Fei Ao | 2011 | Journal of Plant Ecology2011,4,1: | 10 |
| 3 | Recent Changes in Precipitation Extremes in the Heihe River Basin,Northwest China显示文摘Changes in rainfall extremes pose a serious and additional threat to water resources planning and management,natural and artificial oasis stability,and sustainable development in the fragile ecosystems of arid inland river basins. In this study,the trend and temporal variation of extreme precipitation are analyzed using daily precipitation datasets at 11 stations over the arid inland Heihe River basin in Northwest China from 1960 to 2011. Eight indices of extreme precipitation are studied.The results show statistically significant and large-magnitude increasing and decreasing trends for most indices,primarily in the Qilian Mountains and eastern Hexi Corridor. More frequent and intense rainfall extremes have occurred in the southern part of the desert area than in the northern portion. In general,the temporal variation in precipitation extremes has changed throughout the basin. Wet day precipitation and heavy precipitation days show statistically significant linear increasing trends and step changes in the Qilian Mountains and Hexi Corridor. Consecutive dry days have decreased obviously in the region in most years after approximately the late 1980 s,but meanwhile very long dry spells have increased,especially in the Hexi Corridor. The probability density function indicates that very long wet spells have increased in the Qilian Mountains. The East Asian summer monsoon index and western Pacific subtropical high intensity index possess strong and significant negative and positive correlations with rainfall extremes,respectively. Changes in land surface characteristics and the increase in water vapor in the wet season have also contributed to the changes in precipitation extremes over the river basin. | CHENG Aifang FENG Qi Guobin FU ZHANG Jiankai LI Zongxing HU Meng WANG Gang | 2015 | Advances in Atmospheric Sciences2015,32,10: | 5 |
| 4 | Diagnostic value of negative enrichment and immune fluorescence in situ hybridization for intraperitoneal free cancer cells of gastric cancer显示文摘Objective:To explore the intraperitoneal free cancer cell(IFCC)detection value of negative enrichment and immune fluorescence in situ hybridization(NEimFISH)on chromosomes(CEN)8/17.Methods:To verify the reliability of NEimFISH,29 gastric cancer tumors,their adjacent tissues and greater omental tissues were tested.Our study then included 105 gastric cancer patients for IFCC.We defined patients as IFCC-positive if a signal was detected,regardless of the detailed cancer cell numbers.A comparison of clinicopathological features was conducted among IFCC groups.We also compared the diagnosis value and peritoneal recurrence predictive value among different detection methods.The comparison of IFCC number was also conducted among different groups.Results:A cutoff of 2.5 positive cells could distinguish all benign tissue samples and 97%of malignant tissue samples in our study.Compared to intestinal gastric cancer,patients with diffuse gastric cancer tended to have more IFCCs(6 vs.4,P=0.002).The IFCC counts were often higher in the lymphovascular invasion positive group than negative group(3 vs.1,P=0.022).All IFCC samples that were considered positive using conventional cytology were also found to be positive using NEimFISH.When compared to conventional cytology and paraffin pathology,NEimFISH had a higher IFCC positive rate(68.9%)and higher one-year peritoneal recurrence predictive value with area under the curve(AUC)of 0.922.Conclusions:Gastric cancer could be effectively diagnosed by NEimFISH.The IFCC number found using NEimFISH on CEN8/17 is closely associated with Lauren type and vascular invasion of cancer.NEimFISH is a reliable detection modality with a higher positive detection rate,higher one-year peritoneal recurrence predictive value and quantitative features for IFCC of gastric cancer. | Anqiang Wang Zhongwu Li Qian Wang Yali Bai Xin Ji Tao Fu Ke Ji Yanwen Xue Tingxu Han Xiaojiang Wu Ji Zhang Yingjie Yang Guobin Xu Zhaode Bu Jiafu Ji | 2019 | Chinese Journal of Cancer Research2019,31,6: | 3 |
| 5 | Luminescence and energy transfer processes in Lu 2 SiO 5 :Ce 3+ scintillator显示文摘 | Bo Liu Chaoshu Shi Min Yin Yibin Fu Guobin Zhang Guohao Ren | 2005 | Journal of Luminescence2005,,2: | 1 |
| 6 | A two-parame- ter climate elasticity of streamflow index to assess cli- mate change effects on annual streamflow 显示文摘 | Fu Guobin Charles S P Chiew F H S | 2007 | Water Resources Research2007,43,11: | 1 |
| 7 | Hydro-Climatic Trends of the Yellow River Basin for the Last 50 Years显示文摘 | Guobin Fu Shulin Chen Changming Liu Dawn Shepard | 2004 | Climatic Change2004,,1: | 1 |
| 8 | 气候变化对黄河径流的影响显示文摘讨论了自然气候变化和人类活动产生的未来气候变化对黄河区域水情的影响。通过比较不同区域气候模式如厄尔尼诺(其概念采用Trenberth的定义,即“在Nino3和4区域海平面气温在6个月或更长时间内的5个月的滑动平均异常升高值为0.4℃”)、拉尼娜(热带太平洋海域变冷,是厄尔尼诺的对立事件)及南方涛动等来研究自然气候变化对径流的影响;通过观测数据和Arc GIS地理统计分析工具获得的径流、降水和温度的关系,评估未来气候变化对区域水情的影响。结果显示:①人类活动是导致过去50年中黄河流域水资源危机的首要因子;②除了人类活动,气候变化也是黄河流域径流减少的主要因子;③黄河流域的降水和径流显示了与厄尔尼诺或拉尼娜气候变化的有显著的响应,同时该响应也具有空间上的差异;④运用41年的观测资料建立了降水-径流-气温的关系,结果显示径流对降水和气温同样具有敏感性;⑤在研究基于观测资料的气候变化对区域水情的影响中,ArcGIS地理统计分析软件是一个有用的工具。 | Guobin Fu Cairo Okoren Chuimei Yao Shulin Chen | 2005 | 人民黄河2005,27,11: | 1 |
| 9 | Hydro- climatic trends of the Yellow River basin for the last 50 years显示文摘 | Fu Guobin Chen Shulin Liu Changming | 2004 | Climatic Change2004,65,12: | 1 |
| 10 | Operational Reliability Model of Hybrid MMC Considering Multiple Time Scales and Multi-state Submodule显示文摘Environmental and electrical factors such as wind speed,air temperature and switching frequency have significant influences on the operational reliability of hybrid modular multilevel converter(MMC),which is commonly used for the wind power transmission.However,the existing reliability model of hybrid MMC based on statistics cannot accurately reflect the impact of these factors.In this paper,a new operational reliability model of hybrid MMC is presented.The reliability index of the hybrid MMC is coupled with its operation characteristics by calculating multi-term thermal cycling.In addition,an operation strategy of hybrid MMC is proposed to improve its reliability.The multi-state submodule(SM)is developed,which is capable of bypassing specific faulty power modules instead of the whole SM.Case studies show that the proposed operational reliability model could describe the impact of environmental and electrical factors.Also,the proposed operation strategy can improve the reliability of hybrid IMMC by extending the operation time of SMs. | Fei Feng Juan Yu Wei Dai Zhifang Yang Xingpan Zhao Salah Kamel Guobin Fu | 2021 | Journal of Modern Power Systems and Clean Energy2021,9,3: | 1 |
| 11 | Hydro-Climatic Trends of the Yellow River Basin for the Last 50 Years显示文摘 | Guobin Fu Shulin Chen Changming Liu Dawn Shepard | 2004 | Climatic Change (-)2004,,1: | 1 |
| 12 | A critical overview of pan evaporation trends over the last 50 years显示文摘 | Fu Guobin Stephen P Charles | 2009 | Climatic Change2009,97,12: | 1 |
| 13 | The roles of Eu 2+ and Dy 3+ in the blue long-lasting phosphor Sr 2 MgSi 2 O 7 : Eu 2+ , Dy 3+显示文摘 | Chaoshu Shi Yibing Fu Bo Liu Guobin Zhang Yonghu Chen Zeming Qi Xixian Luo | 2006 | Journal of Luminescence2006,,: | 1 |
| 14 | Isotopic evidence for soil water sources and reciprocal movement in a semi-arid degraded wetland:Implications for wetland restoration显示文摘Understanding water dynamics is a prerequisite for the restoration of degraded ecosystems in arid and semiarid regions.In this study,we carried out δD and δ^(18)O analyses of precipitation,unsaturated soil water,overland flow,surface runoff,and groundwater samples from a seasonally flooded wetland in the Momoge National Nature Reserve of the Songnen Plain,Northeast China,to identify the water sources and understand the mechanisms of unsaturated soil water movement.Unsaturated soil water content(W/W%)at every 20 cm along with a soil profile(0–100 cm)was collected during the growing season,and the HYDRUS-1D model was used to simulate temporal-spatial variations.The results showed that the local meteoric water line(δD=5.90δ18O-7.34,R2=0.95)had a smaller slope and intercept than the global meteoric water line because of strong evaporation at our study site under semi-arid climate.The groundwater was partly recharged by local precipitation via overland flow and unsaturated soil water infiltration.Unsaturated soil water was sourced from both precipitation and groundwater with variations at different depths.The upper soil layer at 0–15 cm was mainly sourced from limited precipitation,while the groundwater could move up to a 25 cm layer during the dry period.The unsaturated soil water content increased with soil depth in the top 40 cm,decreased at depths of 40 to 80 cm,and increased again at depths of 80 to 100 cm.The HYDRUS-1D model could simulate the unsaturated soil water dynamics well in the upper(0–40 cm)and lower(80–100 cm)sections,but poorly for depths of 40–80 cm due to the upward and downward flow.The bidirectional unsaturated soil water movement highlights the importance of capillary groundwater for wetland plants with similar climatic or hydrogeological conditions. | Yuanchun Zou Sijian Zhang Xiaofei Yu Guobin Fu Xianguo Lu | 2023 | Fundamental Research2023,3,6: | 1 |
| 15 | Trend of major hydroclimatic variables in the Tarim River basin during the past 50 years显示文摘 | XU Zongxue Liu Zhaofei Fu Guobin | 2010 | Journal of Arid Environments2010,74,2: | 1 |
| 16 | Assessments of Impacts of Climate Change and Human Activities on Runoff with SWAT for the Huifa River Basin,Northeast China显示文摘 | Zhang Aijing Zhang Chi Fu Guobin | 2012 | Water Resource Management2012,26,8: | 1 |
| 17 | Sericin microparticles enveloped with metal-organic networks as a pulmonary targeting delivery system for intra-tracheally treating metastatic lung cancer显示文摘Chemotherapy is one of the major approaches for the treatment of metastatic lung cancer.However,systemic chemotherapy is limited by poor therapeutic efficiency and severe toxic side effects,due to the extremely low delivery efficacy and non-specificity of anticancer drugs.Herein,we report a sericin microparticles enveloped with metal-organic networks as a pulmonary delivery system for treating lung metastasis of breast cancer in an animal model.The sericin microparticles(SMPs)were prepared using water in oil(w/o)emulsification method.After doxorubicin(DOX)loading,tannic acid(TA)/ferric irons(Fe3+)based metal organic networks(MON)were coated on the particles to obtain DOX-loaded microparticles(DOX@SMPs-MON).The SMPs-MON with good biocompatibility could effectively encapsulate DOX and sustainably unload cargos in a pH-dependent manner.The DOX-loaded microparticles could be uptaken by 4T1 cells,and effectively kill the cancer cells.In vivo,DOX@SMPs-MON was deposited in the lungs and remained for over 5 days after pulmonary administration.In contrast to conventional DOX treatment that did not show significantly inhibitory effects on lung metastatic tumor,DOX@SMPs-MON markedly decreased the number and size of metastatic nodules in lungs,and the lung weight and appearance were similar to those of healthy mice.In summary,the sericin microparticles with MON wrapping might be a promising pulmonary delivery system for treating lung metastatic cancer. | Jia Liu Yan Deng Daan Fu Ye Yuan Qilin Li Lin Shi Guobin Wang Zheng Wang Lin Wang | 2021 | Bioactive Materials2021,6,1: | 1 |
| 18 | Hydro-climatic trends of the Yellow River Basin for the last 50years显示文摘 | FU Guobin CHEN Shulin LIU Changming | 2004 | Climate Change2004,65,1: | 1 |
| 19 | Attribution for decreasing streamflow of the Haihe River basin, northern China: Climate variability or human activities?显示文摘 | Zhenxin Bao Jianyun Zhang Guoqing Wang Guobin Fu Ruimin He Xiaolin Yan Junliang Jin Yanli Liu Aijing Zhang | 2012 | Journal of Hydrology2012,,: | 1 |
| 20 | Trends of major hydroclimatic variables in the Tarim River basin during the past 50 years显示文摘 | Xu Zongxue Liu Zhaofei Fu Guobin | 2010 | Journal of Arid Environments2010,74,: | 1 |