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Modeling Water Quality Impacts of Growing Corn, Switchgrass, and <i>Miscanthus</i>on Marginal Soils

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Journal of Water Resource and Protection 2014年第14期6卷 1352-1368页

作者： Mark A. Thomas Laurent M. Ahiablame Bernard A. engel Indrajeet Chaubey Department of Agricultural and Biological Engineering Purdue University West Lafayette IN USA Department of Agricultural and Biosystems Engineering South Dakota State University Brookings SD USA Department of Earth Atmospheric and Planetary Sciences West Lafayette IN USA

The goal of the study was to model water quality impacts of growing perennial grasses on marginal soils. The GLEAMS-NAPRA and RUSLE models were used to simulate long-term surface runoff, percolation, erosion, total phosphorus (TP), and nitrate (NO3-N) losses associated with the production of corn-based bioenergy systems (i.e. conventional tillage corn and corn grain plus stover removal), switchgrass and Miscanthus on three marginal quality soils and one good quality soil in Indiana. Simulations showed that switchgrass and Miscanthus had no effect on annual runoff, but decreased percolation by at least 17%. Results also suggested a potential for reduction in erosion for Miscanthus across the soil types examined when compared to corn-based bioenergy production. The production of switchgrass and Miscanthus did not have significant effects on the simulated TP and NO3-N losses in runoff compared to corn production systems. Nitrates leached from fertilized Miscanthus production were approximately 90% lower than NO3-N leached from the production of fertilized switchgrass and corn systems. Additional studies are needed to better understand the hydrology, erosion and nutrient responses of Miscanthus and switchgrass production to meet bioenergy demands.

关键词： Water Quality Modeling Perennial Grass Runoff Biofuels Marginal Lands GLEAMS-NAPRA

Structure and ferroelectric properties of P(VDF-TrFE) films prepared under different conditions - Effect of filtration of the copolymer solution

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Journal of Advanced Dielectrics 2023年第4期13卷 48-51页

作者： B.Ploss D.Smykalla S.engel Department of SciTec University for Applied Sciences Jena07745 JenaGermany Faculty of Chemistry and Earth Sciences Friedrich-Schiller-University Jena07745 JenaGermany

Vinylidene fluoride-trifluoroethylene copolymer films of molar ratio 70/30 with thickness of about 1μm have been deposited from solution in ethyl methyl ketone to a glass substrate with an aluminum electrode by spin *** solution has been filtrated through a PTFE membrane filter with pore size 0.2μm directly before spin coating or it has been used as is(unfiltrated).After deposition of a top electrode,the samples have been polarized by hysteresis loops with an electric field amplitude of about 100 V/μ*** samples,annealed at temperature 145°C for 3 h,a high remanent polarization of about 7.5μC/cm2 has been achieved,without significant differences between samples fabricated of filtrated or unfiltrated *** lamella are growing in films fabricated of filtrated solution when they are heated above the melting temperature to 159°C for 3 min before the further annealing process at 145°*** films show substantially lower remanent polarization below 4μC/*** images recorded with a pyroelectric laser scanning microscope show that the spherulites have very small pyroelectric activity,i.e.,the spherulites consist of flat-on *** contrast,no spherulitic lamella are growing in films fabricated of unfiltrated solution heated above the melting temperature,melted and annealed under the same *** explanation for this observation is that filtrating changes the structure of the copolymer in solution from polymer coil to *** rods deposited on a substrate will crystallize in flat-on lamella when heated above the melting temperature,in contrast to copolymer coils which crystallize in edge-on lamella.

关键词： P(VDF-TrFE) ferroelectric polymer structure

A PET’S LIFE: CHARACTERIZING PRIMATE PET OWNERSHIP IN SULAWESI

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A PET’S LIFE: CHARACTERIZING PRIMATE PET OWNERSHIP IN SULAW...

Application of SWAT to Assess the Effects of Land Use Change in the Murchison Bay Catchment in Uganda

The Xixth Congress The International Primatological Society

作者： L.Jones-engel G.engel M.Schillaci U.Paputangan J.Froehlich R.Kyes Department of Psychology and Regional Primate Research Center University of Washington Seattle WA. 98195 USA Department of Family and Community Medicine University New Mexico Albuquerque NM. 87131 USA Department of Anthropology University New Mexico Albuquerque NM. 87131 USA Universitas Sam Ratulangi Manado Sulawesi Indonesia Department of Anthropology University New Mexico Albuquerque NM. 87131 USA Department of Psychology and Regional Primate Research Center University of Washington Seattle WA. 98195 USA

＜正＞ The Indonesian island of Sulawesi is home to the endangered Macaca nigra and several other vulnerable or threatened species of macaques that come into frequent contact with humans. The island’s ethnic and religious diversity provides a backdrop for varied human-primate interactions. In particular, primate pet ownership is a widespread practice on Sulawesi that may have far reaching implications for con-

关键词： pet primates Sulawesi primate conservation

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Computational Water, Energy, and Environmental Engineering 2017年第1期6卷 24-40页

作者： Listowel Abugri Anaba Noble Banadda Nicholas Kiggundu Joshua Wanyama Bernie engel Daniel Moriasi Department of Agricultural and Biosystems Engineering Makerere University Kampala Uganda Department of Agricultural and Biological Engineering Purdue University West Lafayette IN USA USDA-ARS Grazing Lands Research Laboratory El Reno OK USA

The Soil and Water Assessment Tool (SWAT) is a versatile model presently used worldwide to evaluate water quality and hydrological concerns under varying land use and environmental conditions. In this study, SWAT was used to simulate streamflow and to estimate sediment yield and nutrients loss from the Murchison Bay catchment as a result of land use changes. The SWAT model was calibrated and validated for streamflow for extended periods. The Sequential Uncertainty Fitting (SUFI-2) global sensitivity method within SWAT Calibration and Uncertainty Procedures (SWAT-CUP) was used to identify the most sensitive streamflow parameters. The model satisfactorily simulated stream discharge from the catchment. The model performance was determined with different statistical methods. The results showed a satisfactory model streamflow simulation performance. The results of runoff and average upland sediment yield estimated from the catchment showed that, both have increased over the period of study. The increasing rate of runoff can lead to severe and frequent flooding, lower water quality and reduce crop yield in the catchment. Therefore, comprehensive water management steps should be taken to reduce surface runoff in the catchment. This is the first time the SWAT model has been used in the Murchison Bay catchment. The results showed that, if all uncertainties are minimised, a well calibrated SWAT model can generate reasonable hydrologic simulation results in relation to land use, which is useful to water and environmental resources managers and policy and decision makers.

关键词： Land Use-Cover Murchison Bay Catchment SWAT Calibration Validation Streamflow

GIS and L-THIA Based Analysis on Variations of Non-point Pollution in Nansi Lake Basin,China

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Journal of Donghua University(English Edition) 2016年第6期33卷 851-858页

作者： ZHANG Bao-lei YIN Le ZHANG Shu-min engel Bernard THELLER Lawrence School of Geography and Environment Shandong Normal University Jinan 250014 China Institute of Regional Economic Research Shandong University of Finance and Economics Jinan 250014 China Department of Agricultural and Biological Engineering Purdue University West Lafayette 47907 USA

Non-point source （NPS） pollution is the main threat to regional water quality, and the estimation of NPS pollution load has become an important task for NPS pollution control in China. Combined with geographical information system （GIS）, the long. term hydrologic impact assessment （L-THIA） model was used to evaluate the *** changes of chemical oxygen demand （COD）, total nitrogen （TN） and total phosphorus （TP） in Nansi Lake basin from 2000 to 2010. The results show： 1 ） the estimated COD, TN and TP loads in 2010 are 260017.5, 111607. 7 and 6372.0 t with the relative errors of 2.1%, 2. 0 % and - 8.8 % respectively, and more than 90% concentrated in the raining period from June to September; 2） cultivated land and construction land take up more than 80% of the whole Nansi Lake basin, and the proportions of the three kinds of NPS pollution loads coming from cultivated land and construction land are more than 98%; 3 ） during 2000- 2010, the COD, TN and TP loads increase by 8801. 6, 180.3 and 71.9 t respectively, and become the main impact factors on the water quality of Nansi Lake.

关键词： non-point source(NPS)pollution land use change longterm hydrologic impact assessment(L-THIA) model Nansi Lake basin

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中国国家图书馆二期暨国家数字图书馆

建筑技艺 2009年第2期15卷 24-35页

作者： Jürgen engel KSP engel und Zimmermann Architekten

国家图书馆二期工程暨国家数字图书馆工程（以下简称新馆）位于北京市中关村路和新吴塔寺路交叉口，在原图书馆大楼的东侧，于2008年9月9日正式面向公众试运行。新图书馆包括书库区、阅览室和数字图书馆所需的全部功能。

关键词：数字图书馆国家图书馆中国二期工程交叉口中关村北京市

在温和条件下用快速脱氯的方法定量分析多氯联二苯

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国外分析仪器技术与应用 2001年第3期 57-63页

作者： engel.,M

多氯联二苯（PCBs）的同族以及其他的多种氯化农药在物理上及化学上有许多相似之处，这些相似的特征使得在对这些物质进行色谱分析时存在色谱峰重叠的问题。对这些有机氯化物进行还原性脱氯反应能大大简化对此类物质的色谱分析。在脱氯... 详细信息

多氯联二苯（PCBs）的同族以及其他的多种氯化农药在物理上及化学上有许多相似之处，这些相似的特征使得在对这些物质进行色谱分析时存在色谱峰重叠的问题。对这些有机氯化物进行还原性脱氯反应能大大简化对此类物质的色谱分析。在脱氯反应之前，通过火焰原子化检测气相色谱法来分离检测联二苯的色谱峰，可定量检测出多氯联二苯的含量。本文作者发现使用钯-镁双离子可在室温及常压条件下很容易地实现多氯联二苯，八氯茨烯，氯丹及滴滴涕的脱氯反应。作者们使用此方法，在干扰物质存在的情况下，得到了对多氯联二苯高达58ppb的检测精度。

关键词：脱氯定量分析多氯联二苯傅若龙农药

Morbidity and mortality after neoadjuvant therapy and sleeve lobectomyin N2-disease

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中国肺癌杂志 2008年第5期11卷 668-671页

作者： Corinna LUDWIG Walburga engel-RIEDEL Erich STOELBEN Thoracic Surgery Lungenklinik Merheim Kliniken der Stadt Kln gGmbH

Background and objective Sleeve resections were introduced to preserve lung function in patients with limited pulmonary *** experience with sleeve resection has reduced the rate of pneumonectomy below 10%.The aim of the study was to assess the outcome after neoadjuvant chemo-or chemoradiotherapy and sleeve resection in patients with N2 non-small cell lung *** Retrospective analysis of 41 patient records between 01.01.2005 and 31.12.2007 underwent induction therapy in N2-disease followed by tracheobronchial sleeve *** patients were compared to the overall results after sleeve resection in our *** analysed were;length of chest tube drainage in days,length of hospital stay,complications,morbidity and hospital *** In 178 patients,an anatomical bronchoplastic resection was *** chemotherapy in N2-disease(n=42) was given in 30 patients and radiochemotherapy in 11 *** length of the operation was between 94 min-493 min(average 143 min).Chest tubes were removed on average after 5 *** were discharged after 10 days.R0-resection was possible in 90%.The overall complication rate was 27%(11/41).The rate of bronchial anastomotic leakage was 9.7%(4/41).Two patients with postoperative respiratory insufficiency and mechanical ventilation,1 patient with technical failure required early correction of the suture and one patient with a necrosis of the anastomosis.30-day hospital mortality rate was 2.4%(1/41).Conclusion Sleeve resection after neoadjuvant therapy has a higher local morbidity(anastomotic insufficiency 9.7% vs 2.8%).This may be explained by the quality of the surrounding tissue after neoadjuvant therapy,which compromises healing of the ***,the results are comparable to those without induction therapy in terms of radicality,and 30-d mortality rate(P>0.05).We therefore believe that sleeve resection after neoadjuvant therapy should be performed whenever possible

关键词： Lung neoplasms Neoplasm staging Chemotherapy