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Hydrologic Modeling Impacts of Post-mining Land Use Changes on Streamflow of Peace River, Florida

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Chinese Geographical Science 2015年第6期25卷 728-738页

作者： ZHANG Jing mark ross Key Laboratory of Resource Environment and GIS in Beijing Capital Normal University Department of Civil and Environmental Engineering University of South Florida

Whether mining activity results in reduced flow of surface water in the Peace River Watershed of Florida has been the subject of much debate. With increased dependence of downstream users on surface water flow of the Peace River as a source of drinking water for four coastal counties in Southwest Florida and problems of water security, the debate has been intensified. It is possible to assess relationships of mining with streamflow in the upper reaches of the Peace River Basin using hydrologic modeling and identify mined sub-basins. In this work, land-use change impacts were simulated by the Hydrological Simulation Program—Fortran(HSPF) model based on geographical information system(GIS) tools, to compare pre- and post-mining streamflows at a study site of the Peace River in west-central Florida. The purpose of this study was to determine if land-use changes caused by mining have negatively impacted streamflow in the Peace River. Changes of land use were identified before and after mining activities. A coupled volume-water depth-discharge(V-h-Q) model based on stage/storage and stage/discharge was applied using HSPF for the pre-mining and post-mining models, respectively. Daily simulated post-mining hydrographs from HSPF were plotted with the calibrated pre-mining results and streamflow hydrographs from the 18 gauging stations, to compare timing of peaks, low flows and flow trends. Analyses of percent exceedances of flow frequency curves of the streams indicated that most streams had similar distributions for mined(reclaimed) and premining periods. In the streamflow change analysis, streamflows actually increased in mining-affected basins at nearly half the stations. Streamflows at other stations diminished. Overall from this comprehensive study, there were declines in streamflow at most gauging stations on the mainstem of the Peace River and its tributaries. The results of this study suggest that regional planning is urgently needed to propose reclamation schemes t

关键词：土地利用变化流域径流水文模拟采后安宁河佛罗里达州 FORTRAN 地理信息系统

Calibration of the HSPF model with a new coupled FTABLE generation method

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Progress in Natural Science:Materials International 2009年第12期19卷 1747-1755页

作者： mark ross Ken Trout Department of Civil and Environmental Engineering University of South Florida 4202 E.Fowler AveENB 118TampaFL 33620 United States

The hydrological simulation program FORTRAN(HSPF) is a comprehensive watershed model designed to simulate water quantity and quality *** is used widely throughout the *** discharge from a stream reach by HSPF is based mainly on function tables(FTABLEs),which describe the relationship between surface area,stream stage,volume,and *** traditional method of FTABLE generation(using general stream cross-sections and the Manning equation or other discharge relationships) can be time-consuming and inaccurate when there are limited calibration stations and survey *** insights into generalized coupled stage/storage and stage/discharge relationships,however,offer the potential to improve both the speed and accuracy of compiling FTABLEs and thus HSPF *** study tested the application of these insights in generating *** study domain included 18 gauging stations in a coastal plain environment on the Peace River watershed in West-Central *** the calibration of this model, wetlands were treated as reaches in HSPF with storage-attenuation *** the simulation period,the modeled daily flow and stage correlated well with observed data at all gauging stations along the Peace *** Nash-Sutcliffe efficiency and correlation coefficient computed using observed and simulated daily flows were 0.90 and 0.91,respectively,at the Peace River *** testing found that the new system for calibrating the FTABLEs improved the model predictive ability and *** in un-calibrated station performance was also *** model parameters obtained in this study could potentially serve as reference values for model application in similar climatic *** may also have particular relevance in disaster management,as the simulation period extended over the hurricane season of 2004,and the model domain was within a high hurricane impact *** possible effects of hurricanes on discharge are also

关键词： Discharge Hydrologic model HSPF FTABLEs Hurricane

Discretization Approach in Integrated Hydrologic Model for Surface and Groundwater Interaction

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Chinese Geographical Science 2012年第6期22卷 659-672页

作者： ZHANG Jing mark A ross Jeffery GEURINK The Key Laboratory of Resource Environment and GIS of Beijing Capital Normal University Beijing 100048 China Department of Civil and Environmental Engineering University of South Florida 4202 E. Fowler Ave ENB 118 Tampa FL 33620 USA Tampa Bay Water 2575 Enterprise Road Clearwater FL 33763 USA

The commonly used discretization approaches for distributed hydrological models can be broadly categorized into four types,based on the nature of the discrete components:Regular Mesh,Triangular Irregular Networks(TINs),Representative Elementary Watershed(REWs) and Hydrologic Response Units(HRUs).In this paper,a new discretization approach for landforms that have similar hydrologic properties is developed and discussed here for the Integrated Hydrologic Model(IHM),a combining simulation of surface and groundwater processes,accounting for the interaction between the *** approach used in the IHM is to disaggregate basin parameters into discrete landforms that have similar hydrologic *** landforms may be impervious areas,related areas,areas with high or low clay or organic fractions,areas with significantly different depths-to-water-table,and areas with different types of land cover or different land *** discrete landforms within basins allows significant distributed parameter analysis,but requires an efficient computational *** IHM integration represents a new approach interpreting fluxes across the model interface and storages near the interface for transfer to the appropriate model component,accounting for the disparate discretization while rigidly maintaining mass *** discretization approaches employed in IHM will provide some ideas and insights which are helpful to those researchers who have been working on the integrated models for surface-groundwater interaction.

关键词：分布式水文模型离散化方法相互作用地下水地表水土地覆盖类型不规则三角网水文响应单元

Numerical Modeling of Shallow Water Table Behavior with Lisse Effect

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Chinese Geographical Science 2011年第2期21卷 249-256页

作者： ZHANG Jinga GONG Huili mark A ross LI Xiaojuan ZHOU Demin Key Laboratory of Resource Environment and GIS of Beijing Capital Normal University Beijing 100048 China Department of Civil and Environmental Engineering University of South Florida 4202 E. FowlerAve ENB 118 Tampa FL 33620 USA

Air entrapment is an important consideration in environments with shallow water tables and sandy soil, like the condition of highly conductive sandy soils and flat topography in Florida, USA. It causes water table rises in soils, which are significantly faster and higher than those in soils without air entrapment. Two numerical models, Integrated Hydrologic Model (IHM) and HYDRUS-1D (a single-phase, one-dimensional Richards′ equation model) were tested at an area of west central Florida to help further understanding the shallow water table behavior during a long term air entrapment. This investigation employed field data with two modeling approaches to quantify the variation of air pressurization values. It was found that the air pressurization effect was responsible at time up to 40 cm of water table rise being recorded by the observation well for these two models. The values of air pressurization calculated from IHM and HYDRUS-1D match the previously published values. Results also indicated that the two numerical models did not consider air entrapment effect (as the predictive parameters remain uncertain) and thus results of depth to water table from these models did not compare to the observations for these selected periods. Incorporating air entrapment in prediction models is critical to reproduce shallow water table observations.

关键词：地下水位数值模拟行为浅层美国佛罗里达州沙质土壤数值模型中西部地区

跨音速转子叶顶泄漏流/主流交界面的前移机制

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工程热物理学报 2011年第6期32卷 929-932页

作者：杜娟林峰陈静宜 mark H ross Joshua D Cameron Scott C Morris 中国科学院工程热物理研究所北京100190 中国科学院先进能源与动力重点实验室北京100190 Hessert Laboratory Department of Mechanical and Aerospace EngineeringUniversity of Notre Dame

采用数值计算和实验研究相结合的方法,研究了跨音速转子叶顶泄漏流与主流交界面轴向位置随流量的变化规律和机制。该跨音转子是美国圣母大学一级半跨音速压气机转子。研究发现机匣壁面脉线分布能够定性反映壁面轴向剪切应力分布,可用来... 详细信息

采用数值计算和实验研究相结合的方法,研究了跨音速转子叶顶泄漏流与主流交界面轴向位置随流量的变化规律和机制。该跨音转子是美国圣母大学一级半跨音速压气机转子。研究发现机匣壁面脉线分布能够定性反映壁面轴向剪切应力分布,可用来识别叶顶泄漏流与主流的交界面位置。通过机匣壁面的脉线分布,可以看出机匣壁面存在两条零剪切应力线。第一条零剪切应力线表示来流与叶顶泄漏流之间交界面的时间和周向平均轴向位置,在小流量工况下交界面靠近顶部叶片的前缘。计算和实验结果都表明,随着质量流量的减小,叶顶泄漏流与主流交界面的轴向位置不断向叶片前缘移动。在近失速点,交界面到达叶片前缘,泄漏流即将溢出。泄漏流与主流的轴向动量比随流量减小不断增大的变化规律进一步说明,间隙区域泄漏流与主流的轴向动量平衡是导致交界面不断前移直至溢出的内在机制。

关键词：叶顶泄漏流/主流交界面轴向剪切应力跨音速压气机转子

Drag Coefficients of Golf Balls

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World Journal of Mechanics 2018年第6期8卷 236-241页

作者： Peter E. Jenkins Joseph Arellano mark ross Matthew Snell Mechanical Engineering Department University of Colorado Denver USA

Drag across a golf ball can affect distance traveled when hitting a ball. An average golf ball will have a drag coefficient of, 0.24 CD ReD 35 m/s. This research found that a significantly deeper dimple pattern will g... 详细信息

关键词： Drag Coefficient Golf Balls Flow Simulation

c-MET immunohistochemical expression in sporadic and inflammatory bowel disease associated lesions

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World Journal of Gastroenterology 2022年第13期28卷 1338-1346页

作者： Grant Halliday ross J Porter Catherine J Black mark J Arends Shahida Din Department of Pathology Western General HospitalNHS LothianScotland EH42XUUnited Kingdom Centre for Inflammation Research Queen’s Medical Research InstituteUniversity of EdinburghEdinburgh EH164TJUnited Kingdom Edinburgh Inflammatory Bowel Disease Unit Western General HospitalNHS LothianEdinburgh EH42XUUnited Kingdom Cancer Research UK Edinburgh Centre Institute of Cancer&GeneticsWestern General HospitalUniversity of EdinburghEdinburgh EH42XUUnited Kingdom

BACKGROUND Post-colonoscopy colorectal cancer(CRC)rates for patients with inflammatory bowel disease(IBD)are unacceptably *** colonoscopy,an intravenous fluorescent anti-c-MET probe may improve endoscopic detection of ***,c-MET expression in IBD lesions is poorly defined,limiting translational *** To comprehensively define c-MET expression in sporadic and IBD-associated colorectal *** c-MET expression was immunohistochemically assessed in 319 formalin-fixed paraffin-embedded tissue specimens,colonoscopically or surgically retrieved between *** included:30 normal colorectal biopsies,30 hyperplastic polyps(HP),31 sessile serrated lesions(SSL),55 tubular/tubulovillous adenomas with low(TA-LGD,n=32)or high grade dysplasia(TA-HGD,n=23),26 sporadic(s)-CRCs,16 quiescent IBD biopsies,11 active/inflamed IBD biopsies,18 IBDassociated dysplastic lesions(IBD-dys),and 102 *** was scored by two independent observers as:0=absent,1=weak,2=moderate or 3=***-Whitney U and Kruskal-Wallis tests were used to assess *** Positive epithelial cytoplasmic and membranous c-MET expression was observed in all tissues,indicating there is ubiquitous expression in the colorectum.c-MET expression was weak in normal colonic epithelium compared with each of the sporadic colonic lesions,including TA-LGD(P<0.001),TA-HGD(P=0.004),HP(P<0.001),SSL(P<0.001),and s-CRC(P<0.001).Specifically,in sporadic(non-IBD)lesions,expression was stronger in TA-LGD compared with normal mucosa(P<0.001),and stronger in s-CRC compared with TA-HGD(P=0.004).However,there was no significant difference between TA-LGD and TA-HGD(P=0.852).Further,there was no difference in c-MET expression between HP and SSL(P=0.065).In IBD,expression was weaker in quiescent colonic mucosa compared with inflamed colonic mucosa(P<0.001).There was no difference between inflamed colonic mucosa and IBD-dys(P=0.512)or IBD-CRC(P=0.296).However,expression

关键词： Inflammatory bowel diseases Colorectal cancer Surveillance Detection c-MET Immunohistochemistry

利用渗透液抽吸减少螺旋缠绕纳滤膜板的浓缩极化

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水处理信息报导 2016年第3期 37-38页

作者： Awad El-Shamy, Ph.D. Crane Environmental, Inc., Venice, FL .Robert Carnahan Mahmoud Nachabc mark ross Ayden Sunol Ahmed Said

纳滤膜板中的污染通常是浓缩极化的结果。本文研究了渗滤液抽吸对略带负电的螺旋缠绕纳滤膜的影响。根据薄膜理论，质量传递系数与浓缩极化成反比。渗滤液抽吸的作用是使边界层不稳定。这将减少浓度极化层，最终使穿过膜表面的传质增加。

关键词：浓度极化螺旋缠绕纳滤膜浓缩抽吸膜板渗透液利用

EXPRESSION OF BCRP GENE IN THE NORMAL LUNG TISSUE AND LUNG CANCER

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Chinese Journal of Cancer Research 2001年第1期13卷 22-26页

作者：毛友生 Austin Doyle Weidong Yang Yuetong Wei mark J. Krasna Douglas D. ross Greenebaum Cancer Center University of Maryland Medical School

Objective: To investigate the expression of novel multidrug resistance transporter (BCRP gene) from human MCF-7/AdrVp breast cancer cells in normal lung tissue and non-small lung cancer tissue. Methods: RNA was extracted immediately from fresh normal lung tissue and viable tumor tissue harvested from surgically resected specimens of non-small cell lung cancer patients. cDNA of BCRP gene was prepared by RT-PCR and was then amplified by PCR. cDNA products from those specimens were transferred to blotting membrane through electrophoresis and transferring technique and southern blot hybridization was eventually performed to detect the expression of BCRP gene. Results: RNA were extracted from 8 tumor tissue alone and 12 pairs of tumor tissue and normal lung tissue harvested from the same lung. Four patients’ RNA samples with poor quality due to degrading were discarded. cDNA products of BCRP gene were obtained by RT-PCR and were then amplified by PCR in the remain 16 patients’ RNA samples. Through southern blot hybridization, BCRP gene was found to be slightly expressed in various amounts in all normal lung tissue (10/10) and only in a half of tumor tissue samples (8/16). Conclusion: BCRP gene is slightly expressed in different amount in all normal lung tissue and only in a half of tumor tissue of non-small cell lung cancer patients. It is possible to induce it’s overexpression and to develop multidrug resistance during chemotherapy if using anthracycline anticancer drugs.

关键词： Multidrug resistance BCRP gene Non-small cell lung cancer Chemotherapy