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MINErosion 4:Using measurements from a tilting flume-rainfall simulator facility to predict erosion rates from post-mining catchments/landscapes in Central Queensland,Australia

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International Soil and Water Conservation Research 2023年第3期11卷 415-428页

作者： Ashraf MKhalifa Hwat Bing So hossein ghadiri Chris Carroll Peter Burger Bofu Yu School of Engineering and Built Environment Australian Rivers InstituteGrifith UniversityNathan4111QueenslandAustralia School of Environment and Science Australian Rivers InstituteGrifith UniversityNathan411QueenslandAustralia Department of Natural Resources Mines and EnergyRockhamptonQueenslandAustralia

The use of draglines to remove overburden in Queensland opencut mines,results in landscapes that consist of long parallel tertiary overburden spoil-piles that are generally highly saline,dispersive,and highly *** height of these spoil-piles may exceed 50-60 m above the original landscapes and the slopes are at the angle of repose of around 75%or 37°.Legislation and public opinion require that these highly disturbed open-cut post-mining landscapes should be satisfactorily rehabilitated into an approved post-mining land use with acceptable erosion ***,these slopes must be reduced before the landscape can be *** most expensive component of the rehabilitation process is the re-shaping and preparation of the overburden to create a suitable landscape for vegetation *** soils and overburden varies greatly in their erodibilities,the extent and cost of earthworks can be minimized,and rehabilitation failures avoided,if soil erosion from designed landscapes can be predicted using laboratory-based parameters prior to construction of these *** paper describes the development of a model for that purpose.A catchment or landscape erosion model MINErosion 4 was developed by upscaling the existing hillslope model MINErosion 3(So,et al.,2018)and integrate it with both ESRI ArcGIS 10.3 or QGIS 3.16(freeware),to predict event based and mean annual erosion rate from a postmining catchment or *** 3 is a model that can be used to predict event and annual erosion rates from field scale hillslopes using laboratory measured erodibility parameters or routinely measured soil physical and chemical properties,and to derive suitable landscape design parameters(slope gradient,slope length and vegetation cover)that will result in acceptable erosion *** it cannot be used to predict the sediment delivery from catchments or *** 4 was validated against data collected on three instrumented catchments(up to 0.91

关键词： Soil erosion MINErosion 4 model Erosion from catchments Post-mining rehabilitation Queensland

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Effect of Vigna radiata, Tamarix ramosissima and Carthamus lanatus extracts on Leishmania major and Leishmania tropica: An in vitro study

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Chinese Herbal Medicines 2020年第2期12卷 171-177页

作者： Alisha Akya Roya Chegene Lorestani hossein Zhaleh Fatemeh Nemati Zargaran Keyghobad ghadiri Mosayeb Rostamian Infectious Diseases Research Center Health InstituteKermanshah University of Medical SciencesKermanshah ***Iran Substance Abuse Prevention Research Center Health InstituteKermanshah University of Medical SciencesKermanshah ***Iran

Objective:Current therapy strategies of leishmaniasis have some problems such as high cost,toxicity and side *** extracts can be a source of drugs to control *** this study,the effect of hydroalcoholic and chloroformic extracts of Vigna radiata,Tamarix ramosissima,and Carthamus lanatus on Leishmania major and *** was ***:The plant samples were collected from west of Iran and their extracts were *** activity assay of all extracts was done using tetrazolium-dye ***:Only high concentrations of *** and *** were able to inhibit Leishmania,while both high and low concentrations of *** had antileishmanial *** difference was observed between hydroalcoholic with chloroformic extract of each ***:Altogether,the results revealed the antileishmanial activity of *** extracts against *** and ***,indicating its potential as an antileishmanial agent.

关键词： antileishmanial agent cutaneous leishmaniasis Carthamus lanatus L Leishmania major Leishmania tropica Tamarix ramosissima Lcdcb Vigna radiata(Linn.)Wilczek

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Impact of Islanding on Governor Signal of Distributed Resources

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Journal of Electromagnetic Analysis and Applications 2011年第2期3卷 56-64页

作者： Mahdi ghadiri Ali Moeini hossein Yassami 不详

Technical and economical impacts of distributed resources have encouraged big industry managers and distribution systems’ owners to utilize small type of electric generations. One important preventive issue to develop these units is islanding situation. Expert diagnosis system is needed to distinguish network cut off from normal occurrences. It should detect islanding in time to disconnect the unit and prevent any additional failures in equipment. An important part of synchronous generator is automatic load-frequency controller (ALFC). This controller is designed properly to respond to load variations and to fix frequency at constant value when working alone as an islanding system and to control output power when operating in parallel with the main. In this paper, a new approach based on monitoring ALFC re-sponse with regard to input signal to governor is introduced. Numbers of initial crossing value are introduced as an index for islanding detection. Simulation results show that input signal to governor has different characteristics in common disturbances.

关键词： Automatic Load Frequency Controller Distributed Generation Governor Islanding Detection Initial Value Crossing

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