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Lattice Boltzmann modeling for tracer test analysis in a fractured Gneiss aquifer

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Natural Science 2013年第3期5卷 368-374页

作者： Ramadan Abdelaziz Andrew j. Pearson broder j. m.rkel Florida International University University Park USA TU Bergakademie Freiberg Instuite for Geology Freiberg Germany TU Bergakafemie Freiberg Instuite for Geology Freiberg Germany

Fractured Gneiss aquifers present a challenge to hydrogeologists because of their geological complexity. Interpretation methods which can be applied to porous media cannot be applied to fractured Gneiss aquifers because flow and transport occur in fractures, j.ints, and conduits. In contrast, the rock matrix contribution to groundwater flow is not very important in Gneiss aquifers. Sodium chloride was inj.cted into groundwater flow under steady state condition as tracer to determine transport parameters which are needed for transport modeling. QTRACER2 was used to evaluate the tracer test data. Lattice Boltzmann method was applied to simulate flow and tracer transport through a fracture zone in Gneiss. Experimental tracer data and the numerical solution by lattice Boltzmann method are compared. In general, the results indicate that a 2D Lattice Boltzmann model is able to simulate solute transport in fractured gneiss aquifer at field scale level.

关键词： LBm QTRACER2

Automated Watershed Evaluation of Flat Terrain

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j.urnal of Water Resource and Protection 2011年第12期3卷 892-903页

作者： Sameh W. Al-muqdadi broder j. m.rkel 不详

Catchment area and watershed delineation is a common task in hydrology. The determination of the catchment is still as a challenge considered being crucial key issues particular in flat terrains. Three concepts could be briefly identified through: the manual delineation of a catchment based on a topographic map with contour lines which is a difficult task for flat terrains, by combination of field survey or evaluation of satellite images. The present research is focus on evaluating the possibility to delineate catchments from flat and arid areas by means of DTm avoiding hard techniques like river burning or other manual hydrological DTm corrections. Three GIS packages were used (Arc Hydrotools, TNTmips and RiverTools) within two DEm: the 90 m and 30 m SRTm in addition to the ASTER 30 m, the application sample presented by western Iraq desert—Ubaiydh wadi. A brief review is given how the delineation algorithms have been developed since the 1980’s. Where result shows that automated watershed analysis of flat terrains is cannot be done without manual evaluation and correction either by using several seeding points or river burning technique.

关键词： Watershed Delineation Algorithms Catchment Digital Terrain model

Analytical and Numerical modeling of Flow in a Fractured Gneiss Aquifer

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j.urnal of Water Resource and Protection 2012年第8期4卷 657-662页

作者： Ramadan Abdelaziz broder j.m.rkel Department for Geology Technische Universitat Bergakademie FreibergFreibergGermany

Investigating and modeling fluid flow in fractured aquifers is a challenge. This study presents the results of a series of packer tests conducted in a fractured aquifer in Freiberg, Germany, where gneiss is the dominant rock type. Two methods were applied to acquire hydraulic properties from the packer tests: analytical and numerical modeling. mLU (multi-Layer Unsteady state) for Windows is the analytical model that was applied. ANSYS-FLOTRAN was used to build a two-dimensional numerical model of the geometry of the layered aquifer. A reasonable match between experimental data and simulated data was achieved with the 2D numerical model while the solution from the analytical model revealed significant deviations with respect to direction.

关键词： Ansys/Flotran mLU for Windows Gneiss Packer Test Fractured Aquifer

Groundwater Geochemistry 2005

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Interpretation of Groundwater Flow into Fractured Aquifer

2005年

作者： broder j. m.rkel Britta Planer-Friedrich Darrell K. Nordstrom

来源：畅想之星图书光盘版（南... 评论

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International j.urnal of Geosciences 2012年第2期3卷 357-364页

作者： Sameh W.Al-muqdadi broder j.m.rkel Geology Department Technische Universitat Bergakademie FreibergFreibergGermany

The region of investigation is part of the western desert of Iraq covering an area of about 12,400 km2, this region includes several large wadis discharging to the Euphrates River. Since the Tectonic features in particular fault zones play a significant role with respect to groundwater flow in hard rock terrains. The present research is focus on investigate lineaments that have been classified as suspected faults by means of remote sensing techniques and digital terrain evaluation in combination with interpolating groundwater heads and mLU pumping tests model in a fractured rock aquifer, Lineaments extraction approach is illustrated a fare matching with suspected faults, moreover these lineaments conducted an elevated permeability zone.

关键词： Fault Interpretation Lineaments Extraction Remote Sensing Digital Terrain model Analytical Pumping Test Evaluation

Appropriateness of systemic treatments in unresectable metastatic well-differentiated pancreatic neuroendocrine tumors

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World j.urnal of Gastroenterology 2015年第8期21卷 2450-2459页

作者： j.nathan R Strosberg George A Fisher Al B Benson Lowell B Anthony Bulent Arslan j.hn F Gibbs Edward Greeno Renuka V Iyer michelle K Kim William j.maples Philip A Philip Edward m Wolin Dasha Cherepanov michael S broder Department of Gastrointestinal Oncology H. Lee Moffitt Cancer Center and Research Institute Department of medicine Division of Oncology Stanford University Medical Center Stanford Robert H. Lurie Comprehensive Cancer Center of Northwestern University Department of Internal medicine Division of Medical Oncology University of Kentucky Markey Cancer Center Rush University medical Center Department of Surgery University at Buffalo - State University of New York Department of medicine Division of Hematology Oncology and Transplantation University of Minnesota Department of medical Oncology Roswell Park Cancer Institute Department of medicine Gastroenterology Mount Sinai School of Medicine mission Health System Asheville Department of Oncology Karmanos Cancer Institute Partnership for Health Analytic Research LLC

AIm:To evaluate systemic treatment choices in unresectable metastatic well-differentiated pancreatic neuroendocrine tumors(PNETs)and provide consensus treatment ***:Systemic treatment options for pancreatic neuroendocrine tumors have expanded in recent years to include somatostatin analogs,angiogenesis inhibitors,inhibitors of mammalian target of rapamycinand cytotoxic *** this time,there is little data to guide treatment selection and *** therefore assembled a panel of expert physicians to evaluate systemic treatment choices and provide consensus treatment *** appropriateness ratings were collected using the RAND/UCLA modified Delphi *** studying the literature,a multidisciplinary panel of 10 physicians assessed the appropriateness of various medical treatment scenarios on a 1-9 *** were done both before and after an extended discussion of the *** measurements of agreement were made and consensus statements developed from the second round ***:Specialties represented were medical and surgical oncology,interventional radiology,and *** had practiced for a mean of15.5 years(range:6-33).Among 202 rated scenarios,disagreement decreased from 13.2%(26 scenarios)before the face-to-face discussion of evidence to 1%(2)*** the final ratings,46.5%(94 scenarios)were rated inappropriate,21.8%(44)were uncertain,and30.7%(62)were *** statements from the scenarios included:(1)it is appropriate to use somatostatin analogs as first line therapy in patients with hormonally functional tumors and may be appropriate in patients who are asymptomatic;(2)it is appropriate to use everolimus,sunitinib,or cytotoxic chemotherapy therapy as first line therapy in patients with symptomatic or progressive tumors;and(3)beyond first line,these same agents can be *** patients with uncontrolled secretory symptoms,octreotide LAR doses can be titrated u

关键词： Unresectable Neuroendocrine carcinomas Neuroendocr

Generate Reservoir Depths mapping by Using Digital Elevation model: A Case Study of mosul Dam Lake, Northern Iraq

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Advances in Remote Sensing 2017年第3期6卷 161-174页

作者： mohammed F. O. Khattab Rudy K. Abo Sameh W. Al-muqdadi broder j. m.rkel Faculty of Geoscience and Geo-Engineering and mining TU Bergakademie Freiberg Freiberg Germany Remote Sensing Center Mosul University Mosul Iraq

Not many bathymetric maps are available for many lakes and reservoirs in developing countries. Usually the bathymetric mapping requires investment in expensive equipment and fieldwork, both of which are not accessible in these countries. This work demonstrates the ability to develop bathymetric map of mosul Lake by using a digital elevation model (DEm). The depths model of the lake was designed through the use of three main stages;a coastline extraction, dataset interpolation and a triangular irregular network model. The normalized difference water index (NDWI) was used for automatic delineation of the lake coastline from satellite images. The ordinary kriging interpolation with a stable model was used to interpolate the water depths dataset. Finally a triangulated irregular network (TIN) model was used to visualize the resulting interpolation model. Calculated values of area and volume of a TIN model during 2011 were compared with values of supposed initial operation of the reservoir. The differences of water volume storage between these stages at 321 m water level was about 0.81 × 109 m3, where the lake lost around 10% of storage value. Also the results of depths lake model show that the change in water storage between march and j.ly 2011 was about 3.08 × 109 m3.

关键词： Water Depth DEm Bathymetry map mosul Lake

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活性炭纤维萃取浓缩水样中微量有机磷农药

环境科学研究 2005年第3期18卷 46-48,59页

作者：汤亚飞王焰新蔡鹤生 broder j.m.rkel 武汉化工学院湖北武汉430073 中国地质大学环境学院湖北武汉430074 弗赖贝格矿业技术大学地球科学地质工程与采矿学院

采用活性炭纤维(ACF)为固相萃取剂填料,萃取测定水样中微量有机磷农药。研究分析了ACF用量、洗脱剂类型、农药初始质量浓度、水样过柱速度及pH等因素对萃取回收率的影响。结果表明:洗脱剂类型和ACF用量是显著的影响因素。最佳萃取条件为... 详细信息

采用活性炭纤维(ACF)为固相萃取剂填料,萃取测定水样中微量有机磷农药。研究分析了ACF用量、洗脱剂类型、农药初始质量浓度、水样过柱速度及pH等因素对萃取回收率的影响。结果表明:洗脱剂类型和ACF用量是显著的影响因素。最佳萃取条件为:含0 1μg L有机磷农药的1L加标水样,需0 2gACF和8mL二氯甲烷,水样过柱速度40mL min。pH对萃取影响不大。萃取回收率为80 7%～118%。

关键词：活性炭纤维固相萃取有机磷农药

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脉冲火焰光度检测器分析水中有机磷农药

农业环境科学学报 2005年第1期24卷 201-205页

作者：汤亚飞王焰新蔡鹤生 broder j.m.rkel 中国地质大学环境学院湖北武汉430074 武汉化工学院湖北武汉430073 Faculty for Geosciences Geoengineering and Mining Freiberg University of Mining And Technology

介绍一种新的有机磷农药GC分析检测器PFPD,考查了积分时间、柱流速、进样溶剂对GC/PFPD测定的影响。结果表明,在注入量0.04～2000ng范围内,注入量与GC响应间呈良好的线性关系,最低检出量为甲基对硫磷和对硫磷0.01ng,乐果和敌敌畏0.02ng... 详细信息

介绍一种新的有机磷农药GC分析检测器PFPD,考查了积分时间、柱流速、进样溶剂对GC/PFPD测定的影响。结果表明,在注入量0.04～2000ng范围内,注入量与GC响应间呈良好的线性关系,最低检出量为甲基对硫磷和对硫磷0.01ng,乐果和敌敌畏0.02ng。GC/PFPD结合固相萃取技术可满足环境水样中微量有机磷农药残留的分析要求。

关键词： PFPD 气相色谱有机磷农药固相萃取活性碳纤维