摘要
近些年来,随着汽车工业和交通运输业的迅速发展,汽车尾气对大气环境污染不断加剧,为此人们提出了新的汽车尾气净化方法,即利用纳米TiO2光催化降解材料治理汽车尾气污染的问题,将该材料喷洒在道路设施上,可以快速地将汽车排向地面方向的尾气加以净化,从而减少对环境的污染。因此对纳米TiO2喷洒机械进行相关设计及喷洒性能的研究,可以提高喷洒质量以达到充分利用纳米TiO2的目的。本文旨在以提高纳米TiO2光催化降解材料喷洒均匀度和喷洒质量为目标,全路况车为主要载体,设计车载纳米TiO2喷洒装备,并考虑到纳米TiO2光催化降解材料黏度、保湿性、表面张力的特性,对喷洒装备的喷洒特性进行系统的理论分析。
首先,对车载纳米TiO2喷洒装备进行总体设计。将装备分为液流机构和机械机构。根据纳米TiO2的特点选择喷头、支管的布置方式、支管的长度及直径选择、支管的压力。建立车载纳米TiO2喷洒装备满载情况下的动力学模型并进行稳定性分析。
其次,利用Delaunay三角剖分法和MATLAB科学计算软件,对不同行驶速度情况的车载喷洒装备进行喷洒特性分析。通过对平面纳米TiO2喷洒点的分布均匀度,采用三次样条多次插值法,将喷头的喷洒点分布数据转换为网格型。对喷头的方形和三角形组合喷洒特性情况进行理论分析,表明在相同喷洒控制面积内,正方形组合比三角形组合布置喷洒点的数据分布更加均匀,可以认为正方形组合均匀度要高于三角形组合均匀度。
在此基础上,提出利用计算机模拟的方法对全路况车载纳米TiO2喷洒装备喷洒出的TiO2液滴的运动轨迹进行曲线拟合。提出了为纳米TiO2喷洒数据特征点建立数学模型,并选取合适的拟合函数,对4种车速情况下喷洒液滴轨迹进行曲线拟合。对比4种情况下的分布情况,得到在车速2.0m/s (7.2km/h)时,喷洒点的分布比较均匀。
最后,初步建立了全路况车载TiO2喷洒装备性能评价体系。将评定指标设定为技术性能指标、经济性能指标和喷洒装备的能耗指标。用本文建立的评价指标体系对样品的路况车载TiO2喷洒装备的工作效率进行了评价。
本文首次在全路况车上设计装配全套纳米TiO2的喷洒装备,从理论分析、模拟仿真对其进行理论性分析研究,对比四种车速情况下喷洒均匀度及喷洒特性,所研究的全路况车载纳米TiO2的喷洒装备具有较好的喷洒性能,是对光催化降解纳米TiO2材料喷洒方法及车载情况下喷洒性能评价的首次尝试,所以,该研究具有重要的理论意义与应用价值。
In recent years, with the rapid development of the national economy, the atmosphere environment pollution is increasing. Along with the enhancement of the public environmental awareness, vehicle exhausts emission standards and regulations more strictly. Today the automobile industry and the transportation are developing rapidly, people to raise new requirement ceaselessly on purifying automobile exhaust. TiO2nanometer photocatalytic of material management can using in degradation of automobile exhaust pollution, the TiO2nanometer photocatalytic material is sprayed on the road facilities, can quickly purification automobile exhaust to reduce the pollution of the environment. The design of nanometer TiO2spraying machinery and research of spraying performance can improve the spraying quality; achieve the goal of make full use of nanometer TiO2.
Based on the current spraying machine of domestic and foreign which main application areas are agricultural and forestry irrigation and spraying, compared to water and pesticides, considering the TiO2nanometer photocatalytic degradation of material's viscosity, moisture, surface tension have bigger difference, which vehicle spray equipment be used to spray the photocatalytic degradation of nanometer TiO2material has not been solved. In this paper, in order to improve the TiO2nanometer photocatalytic degradation of material spraying uniformity and spraying quality, all-terrain vehicle as the main carrier, designed for nanometer TiO2spraying equipment, based on this equipment,spraying equipment and spraying characteristics of systematic and theoretical analysis.
The all-terrain vehicle nano-TiO2spraying equipment is designed firstly in this paper firstly. The equipment is consisted of liquid a flow mechanism and a mechanical mechanism. According to the characteristics of nanometer TiO2materical to choose the nozzle, pipe layout, pipe length and diameter, branch pipe pressure. A dynamic model of full-load condition all-terrain vehicle nano TiO2spraying equipment is establishment and the equiment's stability is analysis.
Secondly, the Delaunay triangulation method and MATLAB scientific computing software are used for analysising the all-terrain vehicle spray equipment spraying characteristics at different speeds. Based on the plane all-terrain vehicle TiO2anometer spraying point's data distribution uniformity, the method of three order spline interpolation is used to convert the data of the nozzle spray distribution to a grid type. Based on model of the square and triangular combination nozzle, the spraying characteristics of theoretical is analysis, which based on the software indicated that under the same spraying control area, the square combination more uniformy than triangular layout spraying quantity distribution, the uniformity of square that is higher than that of triangular uniformity.
A method of computer simulation is used to fit the the TiO2droplet trajectory which spray out from the all-terrain vehicle nano TiO2spraying equipment, based on the computer simulation to curve fitting. A mathematical model is established and a suitable fitting function is selected to put forward for nanoTiO2spraying data feature points and4cases of speed of spraying droplet trajectory are curved fitting. After comparison of4kinds of case the distribution, it is obtained spraying points more uniformity when spraying at speed2.0m/s (7.2km/h).
Finally, based on the references, a performance evaluation system is built preliminary for evaluate the all-terrian vehicle TiO2spraying equipment. The evaluation is set based on the technical performance indicators, economic performance and spraying equipment energy consumption index. The all-terrian vehicle TiO2spraying equipment work efficiency and the applicator was evaluated by using the established evaluation index system.
A full set of nanometer all-terrian vehicle TiO2spraying equipment is assembled and designed in this paper for the first time in the whole region. Based on the theoretical analysis, simulation and the theoretical analysis, the whole all-terrian vehicle nano TiO2spraying equipment had a good spraying performance based on the comparison of four kinds of speed case spraying uniformity and spray characteristics.
Based on photocatalytic degradation of nanometer TiO2material and spraying method, the all-terrian vehicle TiO2spraying equipment has a good spraying performance, was the first attempt of evaluation for the equipment, which has important theory significance and application value.
引文
[1]王金艳.汽车排放污染控制[J].北方交通,2010,4:158-160
[2]杨晓华.汽车尾气排放污染与控制[J].百科论坛,2010,4:392
[3]石惠.纳米TiO2光催化净化汽车尾气中NOx的效率分析[D].哈尔滨:东北林业大学,2009
[4]孙凤英.纳米TiO2光催化降解汽车尾气中的NOx[J].东北林业大学学报,2009,39(2):65-66
[5]孙凤英.纳米TiO2降解大气污染物的应用研究[J].东北林业大学学报,2007,5:120-121
[6]邱星林,徐安武.纳米级TiO2光催化净化大气环保涂料的研制[J].中国涂料,2000,(4):30-32
[7]李宫贤.复合纳米TiO2净化典型室内空气污染物初步研究[J].中国环境卫生,2003,6(3)121-124
[8]覃爱苗,廖雷.纳米技术及纳米材料在环境治理中的应用中山大学学报,2004,143(6):225-228
[9]E. Sanche, A. Moreno, M. Vicent, M.D. Salvador, V. Bonache, R.Moreno.Preparation and spray drying of Al2O3-TiO2 nanoparticle suspensions to obtain nanostructured coatings by APS [J]. Surface & Coatings Technology,2010, (6):1-6
[10]A. Moses Ezhil,V. Agnes,V. Bena Jothy, C. Ravidhas,Joachim Wollschlager,M.Suendorf, M. Neumann, M. Jayachandran,C. Sanjeeviraja. Spray deposition and property analysis of anatase phase Titania (TiO2) nanostructures [J]. Thin Solid Films,2010 (519):129-135
[11]李丽,钱春香.南京长江三桥光催化功能性混凝土路去除汽车排放氮氧化物的研究[J].河南科技大学学报自然科学版,2009,30(1):49-53
[12]江易.纳米科技与环境保护[J].中国环境管理,2001(2):46-48
[13]邹振扬,郑泽根.纳米TiO2的光催化特性及其在环境科学中的应用[J].材料导报,2000,14(6):35
[14]罗明良,蒲春生.纳米技术及材料在环保中的应用与展望[J].化工新型材料,2001,29(7):27-28
[15]王光辉.纳米TiO2光催化技术及其在环境污染治理中的应用[J].环境科学与技术,2001,98(6):18-20
[16]都雪静,许洪国等.纳米TiO2含量对汽车尾气因子降解效能影响试验研究[J].公路交通科技,2007,4(10):155-158
[17]李剑飞,刘黎萍等.纳米二氧化钛对汽车尾气中碳氢化合物HC分解效果研究[J].公路工程,2010,35(2):151-155
[18]倪广红,丰平纳.纳米二氧化钛光催化的研究进展及应用[J].纳米科技,2010,7(2):81-86
[19]卢俊彩,陈火林.纳米二氧化钛光催化剂的改性研究及其在水处理中的应用进展[J].重庆文理学院学报自然科学版,2009,28(3):74-78
[20]卢文林.纳米二氧化钛研究现状[J].科技向导,2010,(4):14-16
[21]新型多功能喷洒机问世[J].林业机械与木工设备,2004.32(3):11
[22]韩锐.汽车乘务舱模拟环境纳米光净化效应与建模研究[D].东北林业大学学报,2008.6
[23]关强,陈萌.公路水泥混凝土路面喷涂纳米TiO2净化机动车排放污染物研究[J].公路交通科技,2009,26(3):154-158
[24]马永财,于建国.光催化降解汽车尾气路面喷洒机的研究[J].森林工程,2009,25(4):53-54
[25]周文明.喷洒机械的分类与选择[J].农业机械与电气化,2004(1):26-27
[26]刘冉峰.自走式大型喷灌机的发展与应用[J].新疆农机化,2002(2):52
[27]李英能.对我国喷灌技术发展若干问题的探讨[J].节水灌溉,2000(1):1-3
[28]吴小伟,茹煜等.无人机喷洒技术的研究[J].农机化研究,2010(7):224-226
[29]石榕生,王立军等.中小型田间喷灌机械初探.农机化研究,1999,(1):39-41
[30]许一飞.灌溉机械概述[J].节水灌溉,2002,(4):43-45
[31]秦国栋.封尘剂自动喷洒装置在煤炭运输中的应用[J].内蒙古科技与经济,2008,9(163):63-64
[32]苏汉锡.矿用除尘洒水车研制与应用[J].河北煤炭,2010,2:58-59
[33]刘益民.基于雾通量分析的细水雾灭火机理模拟实验研究[D].安徽合肥:中国科学技术大学,2008.5:87-88
[34]谷晓黎,张国钧等.基于自动喷洒装置的计算机控制系统的研究与应用[J].机械管理开发,2008,23(5):9-10
[35]张洪波.运煤车防冻液喷洒装置液流及机械系统设计[D].山西太原:太原理工大学,2007.5:37
[36]蒋定生,金兆森.摇臂式喷头设计原理[M].北京:中国水利电力出版社,1981
[37]曾爱军.减少农药雾滴飘移的技术研究[D].北京:中国农业大学2005.6:48
[38]饶宏辉.基于雾通量分析的细水雾灭火机理模拟实验研究[D].北京:中国农业大学2006.12:54
[39]Yasin H.I.,Jajoo N.M.,Hassan Y.M. Effect of sprinkler heads arrangement on uniformity of water distortion[J].Journal of agriculture and water resources research,1988,7(2):267-277
[40]C.de L.T.de Andrade,R.G.Allen,R.D.Wells.SPRINKMOD-pressure and discharge simulation model for pressurized irrigation systems:Case study [J].Irrigation science,1999,18(3):149-156
[41]王家青.静电涂油机中油液荷电雾化机理及其关键技术研究[D].湖北武汉:武汉科技大学2007.11:43
[42]李红.隙控式全射流喷头理论及试验研究[D].江苏镇江:江苏大学2007.6:66-67
[43]朱兴业.全射流喷头理论及精确喷洒关键技术研究[D].江苏镇江:江苏大学2009.6:85
[44]KutterM, Bhattacharjee S K, Ebrahim. Towards second generation watermarking schemes[C]. Kobe,Jpn:IEEE,1999
[45]张发军.车载喷雾机及精确施药关键技术研究[D].武汉:武汉理工大学2008.3:43
[46]韩文霆.变量喷洒可控域精确洒溉喷头及喷洒技术研究[D].陕西杨凌:西北农林科技大学2003.11:12-20
[47]廖振方,邓晓刚等.涡腔式自激振荡射流喷洒装置[J].重庆大学学报,2002,25(12):1-3
[48]张国祥,申亮.微灌毛管进口设流调器时水力设计应注意的问题[J].节水灌溉,2006,(1):39
[49]赵华,许迪龚等.旋转式喷头质量评价指标定量筛选方法对比分析[J].农业工程学报,2009,25(12): 97-101
[50]张磊磊.选煤楼煤车防冻液喷洒装置的改造[J].工程技术,2010,4(12):25
[51]袁会珠.液力式喷头类型及靶标适应性[J].植保技术与推广,1998,18(2):34-36
[52]李元圆,马韶阳,宗跃.冷再生机乳化TiO2溶液喷洒系统的设计[J].建筑机械化,2007,8:33-38
[53]刘大伟,李威,黄银川,闫磊鹏.路面冷再生机智能喷洒系统设计[J].工程机械,2008,39(2):34-37
[54]杨胜利.雾封层技术喷洒高度、散度角和间距的关系及其影响[J].公路交通技术,2009,6(3):56-58
[55]清源计算机工作室MATLAB6.0基础及应用[M].北京:机械工业出版社,2002:55-70
[56]何强,何英MATLAB扩展编程[M].北京:清华大学出版社,2002:25-30
[57]Duane Hanselman,Bruce Littlefield李厚,张平安等校译.精通MATLAB5——综合辅导与指南[M].西安:西安交通大学出版社,2001:67-89
[58]李涛,贺勇军,刘志俭MATLAB工具箱应用指南—应用数学篇[M].北京:电子工业出版社,2000:12-14
[59]王沫然MATLAB6.0与科学计算[M].北京:电子工业出版社,2001:33-35
[60]楼顺天,胡昌华,张伟.基于MATLAB的系统分析与计算—模糊系统[M].西安:西安电子科技大学出版社,2001:56-60
[61]Arne Kesting, Martin Treiber, Martin Scho'nhof, Dirk Helbing. Adaptive cruise control design for active congestion avoidance [J]. Transportation Research Part C 2008 (16):668-683
[62]Hartenstein H, SauPe D. Lossless Aceeleration of Fraetal Encoding Via the Fast Fourier Transform [J].Signal Proeessing Image Communication,2000,16(4):383-394
[63]SunX, DuboisE. A Method for the Synthesis of Intermediate Views in Image-Based Rendering Using Image Rectification [J]. IEEEproeeedings,2002, (2):991-994
[64]E. Bemporad, G. Bolelli, V. Cannillo, D. De Felicis aR. Gadow, A. Killinger, L.Lusvarghi, J. Rauch, M. Sebastiani. Structural characterisation of High Velocity Suspension Flame Sprayed (HVSFS) TiO2 coatings [J]. Surface & Coatings Technology,2010 (204):3902-3910
[65]都雪静,许洪国等.汽车碰撞三落物广义运动理论模型[J].吉林大学学报工学版,2010,40(5):1239-1242
[66]Bertrand Faure, Jesper Sasderup Lindel, Michael Wahlberg, Nicholas Adkins, Phil Jackson., Lennart Bergstrom. Spray drying of TiO2 nanoparticles into redispersible granules[J].Powder Technology,2010 (203):384-388
[67]Qiu hong Zhao, Shuang Chen, Stephen C.H. Leung, K.K. Lai. Integration of inventory and transportation decisions in a logistics system [J]. Transportation Research Part E,2010,46:913-925
[68]余志生.汽车理论[M].北京:机械工业出版社,2009:162-170
[69]商大中.动力学分析基础[M].哈尔滨工程大学出版社,1999:22-30:102-110
[70]洪嘉振.计算多体系统动力学[M].北京:高等教育业出版社,1999:10-12:37-45
[71]李继来.车辆稳定性控制系统的研究与实现[D].安徽合肥:中国科学技术大学,2009.5:66
[72]毛振勇.车辆转向稳定性的势能分析方法研究[D].吉林长春:吉林大学,2004.9:43
[73]乔宇.汽车四轮转向的动力学特性与混杂控制研究[D].天津:天津大学机械工程学院,2002.12:85
[74]A. Hamish Jamson, Frank C.H. Lai, Oliver M.J. Carsten. Potential benefits of an adaptive forward collision warning system [J]. Transportation Research Part C 2008, (16):471-484
[75]姚国成.汽车稳定性控制策略的仿真研究[D].吉林长春:吉林大学,2007.4:42
[76]肖闯.汽乍稳定性控制方法的仿真研究[D].湖南长沙:湖南长沙,2007.4:22
[77]赵兰英.分形理论的路面不平度分级与模拟研究[D].江苏南京:南京农业大学,2009.6:37
[78]吕佳.基于虚拟仿真的高速公路车一路条件下动态限速值研究[D].重庆:重庆交通大学,2009.1:45
[79]阎春利,于建国.林火巡护车辆横向动力学特性分析[J].东北林业大学学报,2009,37(8):57-59
[80]N Orlandea, M A Chaee, D A Calahan. Parsity-Oriented A Approach to the Dynamic Analysis and Design of Mechanieal System[J].Engineering Industry,1997(7):4-6
[81]N K Mani, E J Haug, K E Aikinson. Application Singular Value Decomposition for Analysis of Mechanical System Dynamics[J].ASMEJ Mechanisms Transmissions and Automation in Design,1991,2:25
[82]Yasin M., Badruddin, Ahmad S.Moshabbir P.M. Hydraulic performance of the raingun (PY1-30)with 6 mm diameter nozzle[J].Pakistan Journal of Scientific and Industrial Research 2000,43(6):351-356
[83]Solomon K., J.C.Bezdek. Characterizing sprinkler distribution patterns with aclustering algorithm [J]. Transactions of ASAE,1980,23(4):899-902,906
[84]I.Seginer, D.Kantz, D.Nir. Indoor measurement of single-radius sprinkler patterns [J]. Transactions of ASAE,1992,35(2):523-533
[85]Rochdyanto S., Arif S.S., Susilawati I. Performance of simple sprinkler on sprinkler irrigation sysem [J].Universitas Gadjah Mada,Yogyakarta(Indonesia).1997
[86]Bolle RM, Vemuri B C.On Three-dimensional Surface Reconstruction Methods. IEEE Trans.Pat.Anal.Mach.Intell,1985,7 (4):431-441
[87]朱海峰,赵春晖.图像特征点分布均匀性的评价方法[J].大庆师范学院学报,2010,30(3):9-10
[88]Watson D F.Computing the N-dimensional Delaunay Tessellation with Application to Voronoi Polytopes [J]. The Computer Journal,1981,24(2):167-177
[89]Beraridini F, Mittleman J, Silva C,et al.The Ball-pivoting Algorithm for Surface Reconstruction. IEEE Trans.Visualization Comput.Graphics 1999(4):43-72
[90]武晓波,王世新,肖春生Delaunay三角网的生成算法研究[J].测绘学报1999,28(2):28-31
[91]Piegl L A, Richard A M.Algorithm and data structure for triangulating multiply connected polygonal domains [J]. Computers & Graphics,1993,14(6):23-35
[92]张宗华,彭翔,史伟强,等.平面域任意散乱点自动三角化的研究[J].工程图学学报,2000(2):38-45
[93]Gu Yan, X. N eural network approach to the reconstruction of free form surfaces for reverse engineering. Computer Aided Design,1995,27 (1):59-64
[94]Ruprecht, D.N agel, R., Muller, H. Spatial free form deformation with scattered data interpolation methods. Computer and Graphics,1995,19 (1):6-71
[95]Mikolajczyk K, S chmid C. Scale affine invariant interest point detectors [J]. International Journal of computer Vision,2004,60(1):63-86
[96]LeeH, Lee C, LeeH. Feature-based image watermarking method using scale-invariant keypoints[C]. JejuIsland, Korea, Republic of Springer Verlag,2005
[97]许小勇,钟太勇.三次样条插值函数的构造与Matlab实现[J].自动测量与控制,2006,25(18):76-78
[98]张明敏,潘志庚.散乱点集Delaunay三角剖分的分布并行算法[J].计算机辅助设计与图形学学报,2007,12(7):484-485
[99]高远Delaunay算法的研究与探讨[J].科技创新论坛:180
[100]刘少华.约束数据域Delaunay三角剖分算法研究及应用[J].计算机应用研究,2004(3):26-28
[101]邵春丽Delaunay三角网的算法详述及其应用发展前景[J].测绘科学,2004,29(6):68-71
[102]刘伟哲.基于Matlab三维数据点三角剖分方法研究[J].机械设计与制造,2011(6):102-103
[103]LEED. Generalized Delaunay Triangulation for Planner Graphs [J]. Discrete and Computational Geometry,1988.(44):1-29
[104]祁力钧.优化液体农药喷施技术的研究[D].中国农业大学博士学位论文1999.5:57
[105]李英等.雾滴分类及其测量方法现状[J].农业装备技术,2003,(8):29-34
[106]MaCaullagh M T, Ross C G. Delaunay Triangulation of a Random Data Set for logarithmic Mapping[J].The Cartographic Journal,1980,(17):93-99
[107]Hojatoles lami S A, Kittler J. Region growing:a new approach [J]. IEEE Transactions on Image Processing,2002,7(7):1079-1084
[108]Shih F Y, Cheng S X. Automatic seeded region growing for color image segmentation [J]. Image and Vision Computing,2005,23(10):877-886
[109]McKay N D. A method for registration of 3-D shapes [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,1992,14(2):239-256
[110]K. Ho-Le. Finite element mesh generation method:A review and classification. Computer Aided Design,1988,20(1):27-38
[111]Chen, X. Surface modeling of range data by constrained triangulation. Computer Aid Design, 1994,26 (3):632-645
[112]Bolle R M, Vemuri B C.On Three-dimensional Surface Reconstruction Methods. IEEE Trans.Pat.Anal.Mach.Intell,1985,7 (4):431-441
[113]Watson D F.Computing the N-dimensional Delaunay Tessellation with Application to Voronoi Polytopes.The Computer Journal,1981,24(2):167-172
[114]Beraridini F, Mittleman J, Silva C.et al.The Ball-pivoting Algorithm for Surface Reconstruction. IEEE Trans.Virsualization. Computer. Graphics 1999(4):43-72
[115]Guan L. A Local basis bivariate polynomial natural splines interpolation to scattered data[C]. International culture publishing inc. Beijing,2000; 17-24
[116]Dong H. Recent progress on multivariate spline[C]. Approximation theory: in memory of Varme A K, et al Govil N K, Marcel Dekker, Inc,1998:265-291
[117]Schumaker L L, et al. Multivariate scattered data fitting [J]. Math,1996,(73):1-4
[118]Belytschko T, Krongauz Y, Organ D, et al. Meshless methods:an overview and recent development [J]. Computer Methods in Applied Mechanics and Engineering,1996,139:39-48
[119]Natarajan Sukumar. The Natural Element Method in Solid Mechanics [D].USA:Northwestern University,1998
[120]Barber C B, Dobkin D P, Huhdanpaa HT The Quickhull Algorithm for Convex Hulls [J] ACM T ransactions on Mathematical Software,1996,22(4):469-483
[121]薛定宇.控制系统计算机辅助设计(MATLAB语言及其应用)[M].北京:清华大学出版社.1996
[122]清源计算机工作室MATLAB高级应用:图形及影像处理[M].北京:机械工业出版社2000
[123]Smith D B. Uniformity and Recovery of Broadeast Spray Using Fan Nozzles Transaction of the ASAE,1992,35(1):39-44
[124]Fitzgibbon, A. W. Set of MATLAB files for ellipse fitting [J]. Dept. of Artificial Intelligence, The University of Edinburgh, September 1995
[125]曾伟民等Visual Basic 6.0高级实用教程[M].北京:电子工业出版社,1999:88-90
[126]张社奇,刘淑明,韩维生等.改变喷头喷洒轨迹的力学途径[J].西北农林科技大学学报自然 科学版,2001,29(4):118-121
[127]Wang Rujia, Yu Jianguo. Calculation of spraying distribution fitting of nano-TiO2 spraying device in all-terrain vehicle [C].2011 4th IEEE International Conference on Computer Science and Information Technology (IEEE ICCSIT 2011),2011,6(1):653-656
[128]Lin C F, Hsiao C Y. Structural recognition for tableform documents using relaxation techniques[C]. PRAI,1998,12 (7):985-996
[129]Tseng L Y, Chen R C. Recognition and data extractionof form documents based on three types of line segments [J]. Pattern Recognition,1998,31 (10):1525-1540
[130]Liu Jinhui, Jain AK. Image-based form document retrieval [J]. Pattern Recognition,2000, 33(3):503-513
[131]沈钟,赵振国,王果庭.胶体与表面化学.北京,化学工艺出版社,2006,8,77-83
[132]Kineaid DC, Longely. A water droplet evaporation and temperature model [J]. Trans of the ASAE1989,32:457-463
[133]F.Brezzi, M.Fortin, Mixed and Hybrid Finite Element Methods, Springer, NewYork,1991.
[134]徐宜会MATLAB在数据拟合中的应用[J].科技广场,2007(7):169-170
[135]田春军.基于MATLAB的线性拟合运算[J].情报指挥控制系统与仿真技术2005,27(6):14-15
[136]陈光.最小二乘曲线拟合及Matlab实现[J].软件技术,2005,24(3):107-108
[137]TangL, Stewardand J.F, Reid.Supervised Color image segmentation by genetic algorithmfor real-time weed sensing in outdoor lightingeonditions [J]. Inrevoew.1999
[138]Rosin, P. L. and West, G. A. W. Nonparametric segmentation of curves into various representations [C]. IEEE Trans. PAMI,17:1140-1153,1995
[139]Porrill.J. Fitting ellipses and predicting confidence envelopes using a bias corrected Kalman filter [J]. Image Vision and Computing,8(1):1140-1153, February 1990
[140]Harold H.Analysis of a complex of statistical variables into principal components[J].Journal of Educational Psychology,1993,(24):417-441
[141]Raflery A E, Dean N. Variable selection for model-based clustering [J]. Journal of the American Statistical Association,2006,101:168-178
[142]Zanon E.R.,Testezlaf R.,Matsura E.J.A data acquisition system for sprinkler uniformity testing [J].Transactions of ASAE.2000,16(2):123-127
[143]A1 Khafaf S.,A1 Awad M.C.,Sharhan F.A.Testing the performance of the modified cylindrical fixed-head sprinkler [J].Journal of agriculture and water resources research,1988,7(2):233-238
[144]Latif M.,Ahmad M.S.,Mahmood S.Evaluation locally manufactured rain gun sprinkler system.Journal of Drainage and Water Management[J],1999,3(1):34-41
[145]U.s.Dept.of Agriculture. Methods for evaluation itrigation systems [R]. US Goverment
[146]李久生,饶敏杰.喷灌水量分布均匀性评价指标的试验研究[J].农业工程学 报,1999,15(4):78-82
[147]阳世霄.用模糊综合评判法评价小型喷灌机质量[J].喷灌技术,1990(2):19-22
[148]路振广,曹祥华.节水灌溉工程综合评价指标体系与定性指标量化方法[J].灌溉排水,2001,20(1):55-59
[149]西北农学院.概率基础与数理统计[M].北京:农业出版社,1985:53-55
[150]林维宣.试验设计方法[M].大连:大连海事大学出版社,1995:53