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Implementation of the Semi-Distributed SWAT (Soil and Water Assessment Tool) model Capacity in the Lobo Watershed at Nibéhibé(Center-West of Côte d’Ivoire)

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Journal of Geoscience and Environment protection 2021年第8期9卷 21-38页

作者： Tanoh Jean-Jacques Koua Yeganantham Dhanesh Jaehak Jeong Raghavan srinivasan Kouao Armand Anoh Jean Lorougnon Guédé University Environmental Sciences and Technologies Laboratory Daloa C&#244 te d’Ivoire Texas A & m University Spatial Sciences Laboratory College Station Texas USA Texas A & m AgriLife Research Temple Texas USA

The Lobo watershed is an agricultural area where the use of fertilizers by farmers is intensive, causing eutrophication problems that deteriorate the quality of drinking water distributed to the population. Since the phenomenon of eutrophication is directly linked to runoff, it is essential to model the flow in order to better control the transfer of nutrients responsible for eutrophication. It is within this framework that this study was conducted. The objective of this study is to assess the ability of the semi-distributed SWAT (Soil and Water Assessment Tool) model to simulate runoff in the Lobo watershed. The methodology adopted was based on the use of the QSWAT graphical interface to manipulate and execute the main functions of the SWAT model from QGIS tools. The hydrological modeling was carried out with the QSWAT interface for SWAT 2012. The results showed good performance for the flow calibration (1982-1984) with the evaluation criteria Rp>2p>, NSE and pBIAS respectively of 0.64, 0.64 and 3.1. In the validation period (1984-1987), the model also showed good performance in the streamflow simulation for Rp>2p> and NSE of 0.84 and 0.76 respectively as values. However, for the pBAIS criterion, the result was less good but still remains satisfactory with a value of 19.6. It emerges from this study that the SWAT model is suitable for simulating water transfer and can therefore be used to study the transfer of pollutants in the fight against eutrophication in the Lobo watershed.

关键词： modelling SWAT Lobo Eutrophication Côte d’Ivoire

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锌-三氧化二铬复合镀层的特性(英文)

电镀与涂饰 2011年第9期30卷 12-15页

作者： KARTHIKEYAN S VENKATACHALAm G NARAYANAN S srinivasan K N materials Division SASVIT UniversityVellore-632014India

采用由氧化锌 12 g/L、氢氧化钠 94 g/L、2-氨基-3-羧基吡啶 4.2 g/L、四乙烯五胺 17 g/L、三乙醇胺 2 g/L、专利表面活性剂0.5 g/L及碳三氧化二铬(粒径2 μm)0 ～ 11 g/L组成的镀液,于温度 50 °C、pH 6.5 和电流密度 4 A/dm2的条件下... 详细信息

采用由氧化锌 12 g/L、氢氧化钠 94 g/L、2-氨基-3-羧基吡啶 4.2 g/L、四乙烯五胺 17 g/L、三乙醇胺 2 g/L、专利表面活性剂0.5 g/L及碳三氧化二铬(粒径2 μm)0 ～ 11 g/L组成的镀液,于温度 50 °C、pH 6.5 和电流密度 4 A/dm2的条件下,在低碳钢上电镀 Zn-Cr2O3复合镀层。其显微硬度采用维氏硬度计测量,耐磨性用 Taber 磨耗试验机测量,表面形貌和显微组织采用扫描电镜(SEm)、X 射线衍射(XRD)及 X 射线光电子能谱(XpS)进行分析,在 3.5%(质量分数)NaCl 溶液中的耐蚀性以电化学阻抗谱(EIS)评价。证实了锌基体中存在团聚的 Cr2O3颗粒。与纯锌镀层相比,Zn-Cr2O3复合镀层的机械性能及耐蚀性能更好。

关键词：锌三氧化二铬复合镀层耐蚀性显微硬度耐磨性

Impacts of climate change on hydrology,water quality and crop productivity in the Ohio-Tennessee River Basin

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International Journal of Agricultural and Biological Engineering 2015年第3期8卷 36-53页

作者： Yiannis panagopoulos philip W.Gassman Raymond W.Arritt Daryl E.Herzmann Todd D.Campbell Adriana Valcu manoj K.Jha Catherine L.Kling Raghavan srinivasan michael White Jeffrey G.Arnold Center for Agricultural and Rural Development(CARD) Iowa State UniversityAmesIA 50011-1070USA Department of Agronomy 2104 Agronomy HallIowa State UniversityAmes IA 50011-1010USA Department of Civil Architectural and Environmental Engineering456 McNair HallNorth Carolina A&T State UniversityGreensboroNC 27411USA Departments of Ecosystem Sciences and management and Biological and Agricultural Engineering 1500 Research ParkwaySuite B223220 TAMUTexas A&M UniversityCollege StationTX 77843-2120USA Grassland Soil and Water Research Laboratory U.S.Department of Agriculture-Agricultural Research Service808 East Blackland RoadTempleTX 76502USA

Nonpoint source pollution from agriculture is the main source of nitrogen and phosphorus in the stream systems of the Corn Belt region in the midwestern *** eastern part of this region is comprised of the Ohio-Tennessee River Basin(OTRB),which is considered a key contributing area for water pollution and the Northern Gulf of mexico hypoxic zone.A point of crucial importance in this basin is therefore how intensive corn-based cropping systems for food and fuel production can be sustainable and coexist with a healthy water environment,not only under existing climate but also under climate change conditions in the *** address this issue,a OTRB integrated modeling system has been built with a greatly refined 12-digit subbasin structure based on the Soil and Water Assessment Tool(SWAT)water quality model,which is capable of estimating landscape and in-stream water and pollutant yields in response to a wide array of alternative cropping and/or management strategies and climatic *** effects of three agricultural management scenarios on crop production and pollutant loads exported from the crop land of the OTRB to streams and rivers were evaluated:(1)expansion of continuous corn across the entire basin,(2)adoption of no-till on all corn and soybean fields in the region,(3)implementation of a winter cover crop within the baseline *** effects of each management scenario were evaluated both for current climate and projected mid-century(2046-2065)climates from seven global circulation models(GCms).In both present and future climates each management scenario resulted in reduced erosion and nutrient loadings to surface water bodies compared to the baseline agricultural management,with cover crops causing the highest water pollution *** and soybean yields in the region were negligibly influenced from the agricultural management *** the other hand,both water quality and crop yield numbers under climate change deviated considerably f

关键词： agricultural management scenarios corn-based systems global circulation models hydrology water quality crop yields SWAT Ohio-Tennessee River Basin

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印度亚拉文眼科模式(英文)

眼视光学杂志 2006年第2期8卷 117-119页

作者： srinivasan m Thulasiraj RD preethi pradhan Veni G Aravind Eye Care System Lions Aravind Institute of Community Ophthalmology MaduraiIndia

印度亚拉文医院是世界卫生组织合作单位,创造了“大规模、高质量、低成本”的眼科医疗模式,2005年,医院门诊量达163万多,手术超过22万例,其中白内障手术达16万多例,为世界之最。如何有效地借鉴印度亚拉文的模式为我所用,成为中国眼科界... 详细信息

印度亚拉文医院是世界卫生组织合作单位,创造了“大规模、高质量、低成本”的眼科医疗模式,2005年,医院门诊量达163万多,手术超过22万例,其中白内障手术达16万多例,为世界之最。如何有效地借鉴印度亚拉文的模式为我所用,成为中国眼科界同仁日益热烈讨论的一个话题。本刊特邀印度亚拉文医院的主要负责人就该模式的特点撰文介绍。

关键词：医院管理眼科模式亚拉文模式

东南亚角膜溃疡Ⅱ研究中缅甸乡村医院真菌性角膜炎的防治策略

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世界核心医学期刊文摘(眼科学分册) 2006年第12期 38-39页

作者： maung N. Thant C.C. srinivasan m. J. p. Whitcher 闫丽 Francis I proctor Foundation UCSF Box 0944 95 Kirkham Street San Francisco CA 94143-0944 United States Dr.

Aim: To prove that topical antifungal and antibiotic prophylaxis distributed by grass roots village health workers (VHWs) in Burma is an effective public health intervention for the prevention of post-traumatic microbial keratitis in a population where the majority of ulcers are fungal. methods: Three villages in Bago District with a combined population of 16 987 were selected for the study. This defined population was followed prospectively for 12 months by 15 VHWs who were trained to identify post-traumatic corneal abrasions with fluorescein dye and a blue torch and to administer 1%chloramphenicol and 1%clotrimazole ointment three times a day for 3 days to the eyes of individuals who fulfilled the eligibility criteria. Results: During the 12 month period 273 individuals reported to VHWs with an ocular injury and 126 were found to have a corneal abrasion. All 126 were treated with 1%chloramphenicol and 1%clotrimazole ointment three times a day for 3 days, and all healed without sequelae. Conclusions: Both fungal and bacterial ulcers that occur following traumatic corneal abrasions can be effectively prevented in a village setting by using relatively simple measures that local volunteer public health workers can easily be taught to employ.

关键词：角膜溃疡真菌性角膜炎溃疡性角膜炎角膜疾病聚星障角膜擦伤缅甸眼药水抗真菌Ⅰ 抗真菌药克霉唑

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发光化学镍复合镀层(英文)

电镀与涂饰 2009年第1期28卷 15-20页

作者： A．Santhi K. N. srinivasan S. John A.V.V.m. Sri pushpam College poondi Thanjavur Tamilnadu-613503 India Central Electrochemical Research Institute Karaikudi Tamilnadu-630006 India

在90°C下,采用含有25g/L硫酸镍、20g/L次磷酸钠、35g/L柠檬酸钠、0～6g/L卤磷酸钙和15g/L硫酸铵的镀液(pH5.5),制备了基于卤磷酸钙的发光化学镍复合镀层。研究了镀液pH对复合镀层的沉积速率及卤磷酸钙含量的影响。采用硬度测量、磨损... 详细信息

在90°C下,采用含有25g/L硫酸镍、20g/L次磷酸钠、35g/L柠檬酸钠、0～6g/L卤磷酸钙和15g/L硫酸铵的镀液(pH5.5),制备了基于卤磷酸钙的发光化学镍复合镀层。研究了镀液pH对复合镀层的沉积速率及卤磷酸钙含量的影响。采用硬度测量、磨损测试、腐蚀试验、紫外光谱、扫描电镜和X射线衍射对复合镀层进行了表征。在最佳卤磷酸钙质量浓度(4g/L)下所得的复合镀层含77.59%(质量分数)镍、7.58%(质量分数)磷和14.83%(质量分数)卤磷酸钙。由于卤磷酸钙是硬质粒子,随着其嵌入量的增多,复合镀层的硬度增大。在存在卤磷酸钙的条件下,化学镍复合镀层的耐磨和耐蚀性能均显著提高。

关键词：化学镀镍卤磷酸钙复合镀层发光耐磨性耐蚀性

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S-1光电阴极的热电子发射的研究与控制

红外技术 1984年第1期 39-41页

作者： m.srinivasan D.R.Kulkarni 杨铎

象管的视场性能与近红外响应和背景光有关。近红外响应好,视场性能就好;相反,背景光则使视场性能变差。本文报道了用两种不同方法处理的S-1光电阴极的热电子发射的研究结果。可以看出,靠改变工艺可以在一定程度上控制S-1光电阴极的热电... 详细信息

象管的视场性能与近红外响应和背景光有关。近红外响应好,视场性能就好;相反,背景光则使视场性能变差。本文报道了用两种不同方法处理的S-1光电阴极的热电子发射的研究结果。可以看出,靠改变工艺可以在一定程度上控制S-1光电阴极的热电子发射而对近红外响应没有不利的影响。已经有效地把热发射电流密度降低大约一个数量极。

关键词：光电阴极近红外象管 S-1 热电子发射

Transformation Kinetics and Diffusion mechanisms of Boron in Discontinuously Reinforced Ti matrix Composites

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Transformation Kinetics and Diffusion Mechanisms of Boron in...

血浆胰岛素和血糖对1型糖尿病患者心肌血流的影响

第十三届国际复合材料会议

作者： C.Riviello D.B.miracle R.srinivasan A.O. Smith Corp. Electrical products Co Tipp City OH USA Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH USA Dept of mechanical and materials Engineering Wright State University Dayton OH USA

Introduction Discontinuously reinforced Ti matrix composites offer higher specific modulus, specific strength and wear resistance compared to unreintbrced Ti alloys. These materials also offer nearly isotropic properties and the ability to be processed using conventional metalworking techniques. The purpose of this study was to establish the feasibility of producing discontinuously reinforced Ti (DRTi) with the equilibrium TiB phase (Fig. 1) via a blended elemental powder metallurgy (p/m) processing route. The basic kinetics of diffusion were determined to provide a predictive framework for control of the Ti+TiB 2TiB reaction.

关键词： discontinuously-reinforced Ti TiB growth kinetics diffusion coefficient

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世界核心医学期刊文摘（心脏病学分册） 2005年第11期1卷 48-49页

作者： srinivasan m. Herrero p. mcGill J. B. R. J. Gropler 张平 Cardiovascular Imaging Laboratory Mallinckrodt Institute of Radiology 510 South Kingshighway Boulevard St. LouisMO63110United States Dr.

OBJECTIVES: The objective of this study was to determine the impact of insulin and glucose on myocardial vasodilator function in patients with type 1 diabetes mellitus(T1Dm). BACKGROUND: The relative importance of plasma insulin and glucose levels on the abnormal vasodilator function observed in T1Dm is unknown. mETHODS: Twenty T1Dm patients underwent positron emission tomography studies to measure myocardial blood flow(mBF)(in ml/g/min) at rest(mBFr) and during adenosine(mBFa), both under baseline metabolic conditions and then during either hyperinsuline-miceuglycemic clamp(HE)(n=10; 40±9 years, 8 female subjects, hemoglobin A1c HbA1c 7.8±1.1%) or hyperinsulinemic-hyperglycemic clamp(HH)(n=10; 44±12 years, 8 female subjects, hemoglobin A1c 7.7±0.6%). RESULTS: Both groups showed similar mBFr and mBFa under baseline metabolic conditions(p=NS). Compared with baseline conditions, mBFr increased in the HH group(pp. Compared with baseline conditions, mBFa decreased in the HH group(pp. myocardial perfusion reserve(mpR)(mBFa /mBFr) was similar between the HE and HH groups at baseline(p=NS). During clamp, mpR tended to decrease in the HH group(pp(p=NS) when compared with baseline conditions. However, during the clamp mpR was significantly lower in the HH group when compared with the HE group(pm, hyperglycemia has a deleterious effect on myocardial vasodilator function, which outweighs the beneficial effect of hyperinsulinemia.

关键词：心肌血流血浆胰岛素血管舒张功能高胰岛素血症