今天巴士HTC小编为大家带来安卓模拟器4.0安装教程全解析，最新版安卓模拟器4.0.4安装教程，如果您还不知道怎么操作的话，可以关注一下。
谷歌在最新的安装4.0.3 R2模拟器中，加入了GPU支持，可以支持OpenGL ES 2.0标准，让开发者可以借助模拟器来测试自己的OpenGL游戏。
在去年新增了摄像头支持之后，现在的新版安卓模拟器4.0.4也加入了包括多点触摸输入设备的支持，未来还将加入蓝牙和NFC支持。
QVGA (240x320, low density, small screen)WQVGA400 (240x400, low density, normal screen)WQVGA432 (240x432, low density, normal screen)HVGA (320x480, medium density, normal screen)WVGA800 (480x800, high density, normal screen)WVGA854 (480x854 high density, normal screen)WXGA720 (1280x720, extra-high density, normal screen)WSVGA (1024x600, medium density, large screen)WXGA (1280x800, medium density, xlarge screen)一、运行环境的配置1、准备你的电脑系统：XP 或 Windows 72、由于安卓模拟器4.0需要在Java环境才能运行，先下载Java安装吧：点击下载并安装！（如已有Java环境的可跳过此步）。
二、下载安卓模拟器4.0.4 文件包1、下载Android SDK starter package【用zip打开，拖出android-sdk-windows 到你想放置的位置】；2、下载Android SDK API Level【用zip打开，拖放 android-15(文件夹名字叫：android-4.0.4) 到platforms 目录内】；3、下载安卓模拟器4.0.4 system img【进入android-sdk-windows目录，新建文件夹：system-images，再进入system-images目录，新建文件夹：android-15，用zip打开，拖放 armeabi-v7a 到system-images\android-15目录内】；4、下载安卓模拟器4.0 Platform-tools【用zip打开，拖放 platform-tools 到 android-sdk-windows目录内】。
READ AND SAVE THESE INSTRUCTIONSTechnical SpecificationsCheck the fan label to make sure it is the correct voltage.Operating voltage Diameter Weight Operating frequency120 VAC, 1 Φ52 in. (132 cm)11 lb (5 kg)60 Hz 220/240 VAC, 1 Φ52 in. (132 cm)11 lb (5 kg)50/60 HzTools Needed• Ladder• Wire Strippers• Phillips Screwdriver • Hex Key •WrenchesModels: L3127-X5, L3127-X6, FR127C-U1EXXScan or visit /support for online Haiku mobile app helpMounting Bracket Control Box Wiring Cover LED Diffuser Ring Mounting Ball & Hardware Lower Cover Trim Lower Cover Ring Extension Tube Motor Unit (3) Airfoils Remote Control Hardware PackPARTScdef2REV. H 8/27/2019 | © 2015 BIG ASS FANS | ALL RIGHTS RESERVEDHARDWAREHardware and tools needed for installation are packaged in the hardware pack. Hardware below shown at actual size.Mounting Hardware M8 Bolt M8 Washer M8 Nylock NutAirfoil Hardware(6) M5 Screws with Tooth WasherWiring Cover Hardware(4) M4 Socket Head Cap ScrewsLower Cover HardwareMounting Ball & HardwareSteel PinWedge4 mm Self-TappingScrewMounting Ball(2) Painted M3.5 Screws or3HAIKU® BY BIG ASS FANSPREPARE THE FAN SITEInstallation requires basic electrical knowledge. Contact a licensed electrician if you are uncomfortable performing electrical work!21Disconnect Power!Disconnect power to the fan location before wiring fan!If required by your local electrical code, a licensed electrician must install the fan.A means for disconnection must be incorporated in thefixed wiring in accordance with the wiring rules.If you are installing your fan to an outlet box, it must be suitable for fan support . If there is not an outlet box at the fan location,install one on a ceiling joist or beam.INSTALL THE MOUNTING BRACKETa4REV. H 8/27/2019 | © 2015 BIG ASS FANS | ALL RIGHTS RESERVED5HAIKU® BY BIG ASS FANSSecure the mounting bracket (a ) to the outlet box (b ) with the screws supplied with the outlet box (c ). Outlet Box Hardware:c. Screw (supplied with outlet box)STEP COMPLETED6REV. H 8/27/2019 | © 2015 BIG ASS FANS | ALL RIGHTS RESERVEDPREPARE THE AIRFOILS312SELECT LENS(BLACK FANS WITH LIGHTS)MATCH AIRFOIL STICKERS7HAIKU® BY BIG ASS FANS21Black fans with lights: For softer lighting, remove the white lens and install the smoky lens before attaching the airfoils.a. Twist to uninstall white lens.b. Twist smoky lens to lock in place.Make sure the stickers on the airfoils match the stickers on the fan hub.Rest the motor assembly (a ) on your lap. Moving clockwise, install each airfoil (b ) with the provided hardware. Tighten the screws to 2.5 N·m (22.1 in·lb). Do not use power tools to install the airfoils, and do not over-tighten the screws! Over-tightening the screws may cause the airfoils to warp and void your warranty.Airfoil Hardware:c. (6) M5 screws with tooth washerFans without lights: Position the motor cover (d ) over the motor, and then place both hands flat on the cover and turn it clockwise to lock it in place.DO NOT USE POWER TOOLS!STEP COMPLETED211Lower the extension tube (a) onto the motor shaft. Ensure the yellow arrow sticker on the extension tube is aligned with the sticker on the motor.CONNECT MOTOR WIRING AND SECURE EXTENSION TUBERemove the tie holding the wiring harnesses to the extension tube. Plug the two large wiring harnesses (a ) into the receptacles on the motor. Plug the small, male wiring harness (b ) into the female wiring harness from the motor shaft.Align the bolt holes on the extension tube with the holes on the motor shaft, and then secure the tube with the provided hardware and wrenches.Mounting Hardware:21Place the lower cover ring (a ) around the extension tube, resting it evenly on the motor. There should be a very small gap between the cover and the airfoils. Rotate the cover ring clockwise until it stops.Thread the wires through the opening in the lower cover trim (b ), and then slide the trim down the extension tube, resting it evenly on the cover ring.Align the screw holes on the trim with the motor screw holes, and then secure the trim in place with the provided screws (c ).213ARRANGE LED DIFFUSER RING, WIRING COVER, AND MOUNTING BALLcSlide the LED diffuser ring (a ), wiring cover (b ), and mounting ball (c ) down the extension tube (in that order), resting them on the fan hub.Do not seat the LED diffuser ring in the wiring cover at this step!ATTACH THE MOUNTING BALLSEAT MOUNTING BALL INSTALL WEDGEInsert the steel pin (a ) into the hole at the top of the extension tube, and then slide the mounting ball upward, seating the steel pin in the inner slots of the ball.Mounting Ball Hardware:a. Steel pinInsert the wedge (b ) into the mounting ball as shown, and then secure the wedge with the screw (c ). Tighten the screw enough to prevent movement between the mounting ball and extension tube. Do not over-tighten 21Raise the fan to the mounting bracket. Align the slot in the mounting ball with the rib in the mounting bracket, insert the mounting ball, and let the fan hang freely.Gently twist the extension tube to ensure the mounting ball is properly seated and will not move during fan operation.STEP COMPLETED21INSTALL THE UPPER EARTH/GROUND WIRERoute the ground wire from the extension tube (a) to the outside of the mounting bracket. Secure the ground wire terminal (b) to the mounting bracket with the screw (c).STEP COMPLETEDMake sure power is disconnected before wiring the fan!Do not connect the fan to a damaged power source! Do not attempt to resolve electrical failures on your own. Consult a qualified electrician if uncertain of the electrical installation of this fan.Make the electrical connections by securing the supply power wires to the loose ends of the wiring harness (a ) with the provided wire nuts.Test the connection by lightly tugging on the wires.Tuck the power wiring and wire nuts into the outlet box.321Insert the control box (a ) into the mounting bracket as illustrated. Be careful not to pinch the wires between the mounting bracket and control box!Snap the LED indicator (b ) into the gap in the mounting bracket. Make sure it is securely seated.21CONNECT THE CONTROL BOX2CONNECT WIRING HARNESSES29HAIKU® BY BIG ASS FANS Connect the wiring harness from the control box (a ) to the harness from the junction box (b ).Peel the backing off the double-sided tape (c) on the mounting bracket, and then affix the harnesses to the tape.Connect the wiring harnesses from the extension tube (d ) to the corresponding receptacles (e ) on the control box.12INSTALL THE WIRING COVER30REV. H 8/27/2019 | © 2015 BIG ASS FANS | ALL RIGHTS RESERVED31HAIKU® BY BIG ASS FANS Slide the wiring cover (a ) up the extension tube, aligning the yellow arrow stickers so that the top of the wiring cover sits flush with the mounting bracket. Make sure the LED indicator receptacle shows through the opening in the cover (b ).Make sure all wiring is tucked into the wiring cover, and then secure the cover with the provided screws (c ).Wiring Cover Hardware:c. (4) M4 socket head cap screwsSlide the LED diffuser ring (d ) up the extension tube and plugthe connector into the LED indicator receptacle through theopening (b ) in the wiring cover.Make sure the tabs on the diffuser ring are securely snappedin place.12STEP COMPLETED332REV. H 8/27/2019 | © 2015 BIG ASS FANS | ALL RIGHTS RESERVEDTEST THE FANDo not expose the remote control to rain or water.Turn on power to the fan location and test functionality using the remote. Turn on the fan and test speed and light brightness*.*Applies only to fans with lightsTurns fan on or off.Sets fan timer length of up to eight hours.Each press extends timer by one hour.Turns light on or off.Clears active fan timer.Increases fan speed/light brightness.Varies fan speed to simulate a naturalbreeze.Decreases fan speed/light brightness.Automatically adjusts your fan speedovernight to keep you comfortable whileyou sleep.For operation, maintenance, and troubleshootinginformation, visit /supportUnited States 2348 Innovation DriveLexington, KY 40511+1 855 694 2458© 2015 Big Ass FansThe information contained in this document is subject to change without notice. May be protected by one or more patents listed at /patentsHaiku is a trademark of Delta T LLC, registered in the U.S. and/or other countries.For warranty information, visit /product-warrantiesCanada 2180 Winston Park Drive Oakville, Ontario L6H 5W1Canada1 844-924-4277Mexico CEBSA (Corporación Eléctrica del Bravo SA de CV)Avenida Ind. Rio San Juan Lote 3-A Parque Industrial del Norte Reynosa, Tamps C.P. 88736/+52 1 899 925 6398。
International Conference on Manufacturing Science and Engineering (ICMSE 2015)Rotating Liner Hanger Bearing Frictional Heat Field and Thermal-mechanical Coupling SimulationHaiqiang Sun1, a*1China university of geosciences Beijing, 100083a E-mail:***************Keywords: frictional heat field; thermal stress; thermal deformation.Abstract. Based on the bearing frictional theory and thermal theory, establishing a three-dimensional finite element model of the rotating liner hanger bearing, using finite element software ANSYS-Workbench to simulate the temperature field distribution. Discussing the influence of the slurry temperature and the frictional heat on the rotating liner hanger bearing temperature field, the thermal stress and the thermal deformation, Analysis results show that the existence of the temperature field has a significant influence on the contact stress, and has a certain influence on deformation of the bearing components as well.IntroductionRotating liner hanger receives a high attention at cementing site because of its good cementing effect in ultra-deep wells, horizontal wells and angle high angle wells[1]. The rotating liner hanger was developed in 1920s. Bearing is the key part of the rotating liner hanger[2]. When the bearing works, not only bear the high load from outside, but also run at high temperature and slurry environment at the downhole[3] . At the same time, frictional heat which produced by the large frictional torque on rotating liner hanger bearing makes the bearing roller surface wear intensively and then reduce the bearing life.The study of this bearing is rare. Sliding bearing was used before the thrust roller bearing was developed. Lanrong Ma developed a kind of special bearings for the rotating liner hanger, but the bearing life can’t meet the practical need. Jianchong Wang simulated the slurry environment at the downhole . but he didn’t consider the friction heat[4]. In addition, Yu Wang studied this kind of bearing sealing problem, Zhijun Niu studied the roller shape modification.Based on the theory of bearing frictional and thermology theory, this paper discuss the impact of high-temperature slurry and the friction heat on temperature field distribution , thermal stress and the thermal deformation.The thermal analysis model of rotating liner hanger bearingThe heat transfer process. Rotating liner hanger bearing has two heat sources , one is the high temperature slurry from outside of the bearing, this part of the heat through the heat conduction effects the bearing, then each part of bearing transfers heat through the heat conduction. The other part is the rotating liner hanger bearing produced friction heat on the process of rotating, this part of heat is produced mainly in the contact area. Because the simulation of the frictional heat takes a lot of computer resources, it is impossible to simulate the rolling calorific value which is produced in the whole rotary process of the rotating liner hanger bearing. This paper calculates the single roller heating power based on the bearing frictional thermology theory firstly, and then assigns the heat to the raceway (the seat ring and the shaft ring) and the roller according to the proportion of 1:1.The calculation of friction heat. The calorific value of the rotating liner hanger produced by the frictional torque[5].The frictional torque depends on bearing structural parameters, load, speed, lubricant, etc[6]. Frictional torque can be divided into torque related to structural parameters torque andtorque related to external load. Therefore, the rotating liner hanger frictional torque can be written as Error! Bookmark not defined.:01M M M =+ (1)Calculate 0M .0M related to bearing types, lubricant viscosity and quantity and the bearing speed. 2733007300200010()200016010m m vn M f vn D vn M f D −−≥=≤=×(2)m D --- The average diameter of the bearing.mm .0.5()D d +0f ---Coefficient related to the types of bearings and lubrication.n ---Bearing speed./min rv ---The lubricant viscosity under bearing operating temperature.2/mm sCalculate 1M . 1M mainly related to elastic hysteresis and contact surface differential sliding friction loss.111mM f PD =(3) 1f --- Coefficient related to the bearing type and load.1P --- The bearing load when calculate the bearing friction torque. NCalculate the friction power. The friction power [7]:41.04710f H nM−=×(4) n ---Bearing rotating speed. /min rM ---Bearing friction torque. N mm ⋅Heat transfer between bearing components. For the rotating liner hanger bearing system, there are three types of heat transfer forms: one is heat transfer between the bearing components; the second one is the heat convection between bearing assemblies and the air in the bearing chamber; the third one is the thermal radiation. Among the three transfer forms, the second one and the third one have little impact on the distribution of the bearing temperature field , Therefore, this chapter only discuss the effect of the heat conduction on the bearing temperature field. Heat transfer occurs between the bearing components .The equation is [8]()12c kS H T T l =−(5)k --- Coefficient of thermal conductivity. ()m ⋅℃W/ l --- Distance between two points. mT ---Temperature at two points.℃S ---The area of the vertical direction of heat flow between two points. 2mRotating liner hanger bearing temperature field simulationfinite element model. The rotating liner hanger bearing finite element model is established by three-dimensional entity element which is called solid164, the materials is ZGCr15, the elastic modulus is 209 GPa and the poisson ratio is 0.3, the coefficient of thermal conductivity is 44W /m ⋅℃.The seat ring and the shaft ring are meshed by mapping grid. In contact area, there is a grid subdivision. The roller adopt free meshing, the grid size is 1 mm. The retaining ring adopt free meshing too and the grid size of 2 mm.Steady state thermal should be calculated first, and then import the result to static analysis module. The thermal power of a single roller and raceway contact area is 23.7 W which is calculated by the formula 1 ~ 3. Retaining ring surface applied load a temperature of 150 ˚C (slurry temperature). Impose concentrated force 47620N on upper surface of the shaft ring (equivalent to bearing overall carrying 100 t).The simulation results.The temperature field result analysis. Figure1 shows under the effect of high temperature slurry, the rotating liner hanger bearing temperature field distribution. Figure 2 shows under the comprehensive function of high-temperature slurry and friction heat, the bearing temperature field distribution.Figure 1. Without friction temperature field distributionFigure2. Join friction temperature field distributionFrom figure 1and figure 2, it can be seen that friction power works on the roller and raceway contact area influence the temperature distribution. Along the roller’s axial, take a series of points on roller contact surface area. Check the temperatures and then drawing as figure 3.Figure3. Friction impact on roller contact region’s temperatureBy figure 3, it can be seen that the trends of the two curve are same, the temperature from the smaller side of the roller to the larger side rise gradually. The highest temperature of the roller with friction power is 131.94 ˚C, the highest temperature of the roller with no friction power is 110.63 ˚C, the existence of the friction power makes the temperature of the roller contact region rise, The maximum difference temperature value is 21.31 ˚C, the maximum temperature had occurred in roller large end, and the friction power makes the distribution of the roller temperature no longer uniform. As a result, We can draw a conclusion that the frictional power can’t be neglected.The contact thermal stress and deformation analysis.Figure 4 shows the rotating liner hangerbearings simulation results under the action of static load, including total equivalent stress, contact stress, total deformation and deformation of the roller .The same as figure 5 but under the action ofstatic load and slurry and frictional thermal load. The results show that in the case of static load themaximum contact stress reach to 2368.8 MPa, however, in the case of thermal-mechanical coupling, the maximum contact stress increase to 2449.3 MPa. This is due to the material performance parameter that related to the thermal, at the same time, the case of thermal-mechanical coupling can also increase the maximum contact stress. The roller total deformation under static load is 0.0522 mm, however , in the case of thermal-mechanical coupling, it reach to 0.0533 mm. The results show the thermal canmake the bearing components deformation increases, which could provide a reference for the design of the bearing initial clearance.Figure4. The static simulation resultsFigure5. Thermal-mechanical coupling simulation resultsSummaryBased on the theory of bearing tribological and thermal theory,this paper discuss the impact of frictional heat and high temperature slurry on the bearing temperature field distribution and discuss the influence of above factors on rotating liner hanger bearing contact stress and deformation. The conclusions are as follows:The frictional heat generated by frictional torque of rotating liner hanger bearing can’t be ignored for the temperature field distribution.The existence of the thermal load of rotating liner hanger has significant effects on the maximum contact stress of the bearing.Thermal load can increase the bearing components deformation, which can provide a reference for the initial clearance of bearing design.References[1]ZHANG Hong-wei, RUAN Chen-liang, LI Peng-fei, Rotary Liner Cementing Tool in the Application of Ultra-deep Horizontal Wells, Oil field equipment.41(2012)68~71.[2]ZHANG Qing-yu,ZHANG SHAO-xian,ZHENG DIAN-fu, Rotating liner cementing technology status quo ,Drilling&production technology. 30(2007), 35~37..[3]MA LAN-rong, GUO CHAO-hui,YANG DE-kai, Key Technology Study and Performance Test of Rotating Liner Cementing, Oil field equipment. 38(2009)67~70.[4]WANG JIAN-chong, Finite Element Analysis of Rotary Liner Hanger Bearing in Ultra-Deep Well Drilling Based on ANSYS WORKBENCH, May 2014.[5]QIN DA-tong,XIE LI-yang, Modern mechanical design manual,2(2011) 281~285.[6]T.A.Harris,M.N.Kotzalas, Advanced Concepts of Bearing Technology, September 2009.[7]LI YI-geng, Thermal-Mechanical Coupling Analysis of Coated Cylindrical Roller Bearing, December,2011.[8]XU JIAN-ning, QU WEN-tao,ZHAO-ning, Analysis of Thermal Deformation and Temperature Field for Plain Thrust Bearing, Lubrication engineering.8(2006),120~123.。
Package‘Rwofost’October12,2022Description An implementation of the WOFOST(``World Food Stud-ies'')crop growth model.WOFOST is a dynamic simula-tion model that uses daily weather data,and crop,soil and management parameters to simu-late crop growth and develop-ment.See De Wit et al.(2019)<doi:10.1016/j.agsy.2018.06.018>for a recent review of the his-tory and use of the model.Type PackageTitle WOFOST Crop Growth Simulation ModelVersion0.8-3Date2021-10-01LinkingTo RcppImports meteor,methods(>=0.2-2),Rcpp(>=0.12.4)Suggests terra,rasterDepends R(>=3.5.0)URL https:///package=RwofostBugReports https:///cropmodels/Rwofost/issuesSystemRequirements C++11Maintainer Robert J.Hijmans<*******************>License GPL(>=3)NeedsCompilation yesAuthor Robert J.Hijmans[cre,aut],Huang Fang[ctb],C.A.van Diepen[ctb],Allard de Wit[ctb],Daniel van Kraalingen[ctb],Tamme van der Wal[ctb],C.Rappoldt[ctb],Hendrik Boogard[ctb],I.G.A.M.Noy[ctb],Alterra,Wageningen-UR[cph]Repository CRANDate/Publication2021-10-0116:20:02UTC12predict R topics documented:Rwofost-package (2)predict (2)wofost (3)wofost_control (5)wofost_crop (6)wofost_model (7)wofost_soil (9)Index10Rwofost-package WOFOST Crop Growth Simulation ModelDescriptionThis package provides an R interface to a C++implementation of the WOFOST crop growth simu-lation model.This is thefirst release.Please consider this version unstable.It needs more work to simplify its use.More detailed documentation is also forthcoming,but there is ample general documentation avail-able on-line.The documentation for the FORTRAN version7.1is most applicable.For example, this manual.The WOFOST model that this R package uses is written in C++and it can also be compiled and run as a stand-alone program(see the github repository.It was derived from the original FORTRAN implementation.It passes the tests cases developed for the PCSE/python version.This suggests that you safely can use the model for"standard"computation of potential and water-limited production. predict Spatial WOFOST model predictionsDescriptionMake spatial predictions with a WOFOST model.First create a model,then use the model with a SpatDataSet of weather and a SpatRaster of soil properties to make spatial predictions.Usage##S4method for signature Rcpp_WofostModelpredict(object,weather,mstart,soilindex=NULL,soils=NULL,filename="",overwrite=FALSE,...)Argumentsobject WOFOST modelweather SpatRasterDataset with weather data.The must be six sub-datasets with daily weather data for the same days and these names:tmin,tmax,prec,srad,windand vaprmstart dates to start the modelsoilindex SpatRaster.postive integer with the ID for the soil type to usesoils list of wofost soil typesfilename character.Outputfilename.Optionaloverwrite logical.If TRUE,filename is overwritten...list.Options for writingfiles as in writeRasterValueSpatRasterwofost WOFOST crop growth modelDescriptionRun the WOFOST crop growth model.Through this interface,you provide weather data,and crop, soil and control parameters to run the model once.For multiple runs it might be preferable to use wofost_model instead.Usagewofost(crop,weather,soil,control)Argumentscrop list.Crop parametersweather data.frame with weather datasoil list.Soil parameterscontrol list.Model control optionsDetailsThe weather data must be passed as a data.frame with the following variables and units.variable description class/unitdate"Date"class variable-srad Solar radiation kJ m-2day-1tmin Minimum temperature degrees Ctmax Maximum temperature degrees Cvapr Vapor pressure kPawind Wind speed m s-1prec Precipitation mm day-1Note that there should not be any time gaps between the days in the data.frameValuematrixReferencesVan Diepen,C.A.,J.Wolf,and H van Keulen,1989.WOFOST:a simulation model of crop pro-duction.Soil Use and Management,5:16-24Van Keulen,H.and J.Wolf,1986.Modelling of agricultural production:weather,soils and crops.http://edepot.wur.nl/168025See Alsowofost_modelExamples#weather dataf<-system.file("extdata/Netherlands_Swifterbant.csv",package="meteor")w<-read.csv(f)w$date<-as.Date(w$date)head(w)#crop and soil parameterscrop<-wofost_crop("barley")soil<-wofost_soil("ec1")#"control"parameterscontr<-wofost_control()contr$modelstart<-as.Date("1980-02-06")contr$latitude=52.57contr$elevation=50#run modeld<-wofost(crop,w,soil,contr)#outputhead(d)tail(d)plot(d[,"step"],d[,"LAI"])wofost_control5##Another examplecrop<-wofost_crop("rapeseed_1001")soil<-wofost_soil("soil_5")contr$modelstart<-as.Date("1977-01-01")rp<-wofost(crop,w,soil,contr)plot(rp[,"step"],rp[,"LAI"])#yieldplot(rp[,1],rp[,"WSO"])##water limitedcontr$water_limited<-TRUEcontr$modelstart<-as.Date("1985-01-01")crop<-wofost_crop("maize_1")f<-system.file("extdata/Philippines_IRRI.csv",package="meteor")wth<-read.csv(f)wth$date<-as.Date(wth$date)contr$elevation<-21contr$latitude<-14.18ma<-wofost(crop,wth,soil,contr)plot(ma[,"step"],ma[,"LAI"])wofost_control WOFOST control parametersDescriptionThis functions returns a list of"control"parameters to run the WOFOST model.Either a default list, or from afile.See this manual https://www.wur.nl/en/show/WOFOST-7.1-User-Manual.htm for the interpretation of the parameters.Usagewofost_control(filename= )Argumentsfilename character.FilenameValuelist6wofost_cropSee AlsowofostExamplescontr<-wofost_control()str(contr)wofost_crop WOFOST crop parametersDescriptionThis function returns a list of crop parameters for the WOFOST model.See this manual https: //www.wur.nl/en/show/WOFOST-7.1-User-Manual.htm for their interpretation.Usagewofost_crop(name="",describe=FALSE)Argumentsname character.Either the name of a crop that comes with the package(see examples) or afilename of a similarly formattedfiledescribe logical.If TRUE avaialble metadata is printedValuelistReferencesvan HeemstSee AlsowofostExampleswofost_crop( )crop<-wofost_crop( barley )str(crop)wofost_model WOFOST crop growth modelDescriptionCreate a WOFOST crop growth model object.Trhough this interface,youfirst create a model object and then you run it.The advantage is that you can easily change single parameters of the model and run the model again.Usagewofost_model(crop,weather,soil,control)run(x,...)crop(x)<-valuesoil(x)<-valuecontrol(x)<-valueweather(x)<-valueforce(x)<-valueArgumentscrop list.Crop parametersweather data.frame with weather data.See Detailssoil list.Soil parameterscontrol list.Model control optionsvalue crop,weather,soil,or control data,as above;or a data.frame for"force"x WOFOST model...additiontal arguments.stopError(logica).If an error occurs and stopError is TRUE,and error message is given.Otherwise,a warning is given and somesimulation data(up till when the error occurred)may be returnedDetailsThe weather data must be passed as a data.frame with the following variables and units.variable description class/unitdate"Date"class variable-srad Solar radiation kJ m-2day-1tmin Minimum temperature degrees Ctmax Maximum temperature degrees Cvapr Vapor pressure kPawind Wind speed m s-1prec Precipitation mm day-1Note that there should not be any time gaps between the days in the data.frameValueWofostModel objectReferencesVan Diepen,C.A.,J.Wolf,and H van Keulen,1989.WOFOST:a simulation model of crop pro-duction.Soil Use and Management,5:16-24Van Keulen,H.and J.Wolf,1986.Modelling of agricultural production:weather,soils and crops.http://edepot.wur.nl/168025Examples#weather dataf<-system.file("extdata/Netherlands_Swifterbant.csv",package="meteor")w<-read.csv(f)w$date<-as.Date(w$date)crop<-wofost_crop("barley")soil<-wofost_soil("ec1")contr<-wofost_control()contr$modelstart<-as.Date("1980-02-06")contr$latitude=52.57contr$elevation=50#create modelm<-wofost_model(crop,w,soil,contr)#run modelx<-run(m)plot(x[,"date"],x[,"LAI"],cex=.5)#make a changem$control$modelstart=as.Date("1980-02-20")#run model againy<-run(m)lines(y[,"date"],y[,"LAI"],col="red")#change the cropcrop(m)<-wofost_crop("potato_704")p<-run(m)lines(p[,"date"],p[,"LAI"],col="blue")wofost_soil9 wofost_soil WOFOST soil parametersDescriptionThis function returns a list with soil parameters for the WOFOST model.See this manual https: //www.wur.nl/en/show/WOFOST-7.1-User-Manual.htm for their interpretation.Usagewofost_soil(name= )Argumentsname character.Either the name of a soil that comes with the package(see examples) or afilename of a similarly formattedfileValuelistSee AlsowofostExampleswofost_soil( )soil<-wofost_soil( ec1 )str(soil)Indexcontrol<-(wofost_model),7control<-,Rcpp_WofostModel,list-method(wofost_model),7crop<-(wofost_model),7crop<-,Rcpp_WofostModel,list-method(wofost_model),7force<-(wofost_model),7force<-,Rcpp_WofostModel,data.frame-method (wofost_model),7predict,2predict,Rcpp_WofostModel-method(predict),2run(wofost_model),7run,Rcpp_WofostModel-method(wofost_model),7Rwofost(Rwofost-package),2Rwofost-package,2soil<-(wofost_model),7soil<-,Rcpp_WofostModel,list-method(wofost_model),7weather<-(wofost_model),7weather<-,Rcpp_WofostModel,data.frame-method (wofost_model),7wofost,3,6,9wofost_control,5wofost_crop,6wofost_model,3,4,7wofost_soil,9writeRaster,310。
