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45篇 您的检索式:作者名="Tagar"
    题名 作者 年代 出处 被引量
1秸秆-土壤-旋耕刀系统中秸秆位移仿真分析显示文摘秸秆-土壤-旋耕刀之间的相互作用机理对于分析耕作过程有着重要作用。为研究秸秆-土壤-旋耕刀的宏观及微观相互作用,对系统中的秸秆位移进行了仿真分析。首先建立了秸秆-土壤-旋耕刀相互作用的三维离散元模型;其次,对仿真结果与室内土槽实验结果进行对比分析,在土槽实验中采用示踪器方法测量秸秆位移;仿真中导出每个时刻的秸秆位置用来描述秸秆仿真位移;最后,利用仿真数据对秸秆位移进行三维分析。实验和仿真都在恒定前进速度0.222 m/s和耕深100 mm及4种转速(77、100、123、146 r/min)下进行。实验与仿真结果皆显示秸秆位移随着转速增加呈现增加的趋势;秸秆的水平运动位移总是大于同转速下的侧向位移;高转速下的实验与仿真位移误差约为40%,低转速下为70%。利用拟合的误差方程和仿真值可以估算秸秆的水平和侧向位移值,估算值与实验值误差为8.7%和9.3%。通过追踪不同位置的秸秆颗粒发现:初始位置不同的秸秆颗粒具有不同的运动:位于正切刃内侧的秸秆在刀刃切开土壤时,沿正切刃边缘滑出;而位于侧切刃下方的秸秆在开始时被侧切刃挤压随刀刃一起运动,而后随土壤一起被抛起;远离旋耕刀工作范围的秸秆,则因受土壤扰动影响而仅有微小的位移。紧靠侧切刃及过渡刃周围的秸秆颗粒在考察时间段内被直接旋耕入土。可以利用秸秆的垂直方向受力情况,优化旋耕刀刃口曲线提高秸秆在旋耕过程中直接入土的比例;还可以整合秸秆水平和侧向位移及分布,寻找最优工作参数使秸秆在3个方向都能均匀分散,从而提高秸秆分布均匀度。方会敏 姬长英 Ahmed Ali Tagar 张庆怡 郭俊 2016农业机械学报2016,47,1:101
2Using Prior Shapes in Geometric Active Contours in a Variational Framework显示文摘Yunmei Chen Hemant D. Tagare Sheshadri Thiruvenkadam Feng Huang David Wilson Kaundinya S. Gopinath Richard W. Briggs Edward A. Geiser 2002International Journal of Computer Vision2002,,3:2
3Using prior shapes in geometric active contours in a variational framework显示文摘Chen Y Tagare H Thiruvenkadam S 2002International Journal of Computer Vision2002,50,:1
4Deformable 2-D template matching using orthogonal curves显示文摘Tagare H D 1997IEEE Transactions on Pattern Analysis and Machine Intelligence1997,16,1:1
5Bubble CPAP versus venti- lator CPAP in preterm neonates with only onset resiporatory dis- tress:a randomized controlled trail显示文摘Tagare A Kadam S Vaidy U 2013J Trop Pediatr2013,59,2:1
6Using prior shapes in geometric active contours in a variational framework显示文摘Chen YM Tagare HD 2002Int''J Comp Vis2002,50,:1
7Medical image collection indexing: Shape-based retrieval using kD-trees显示文摘Robinson G P Tagare H D DuncanJ S 1996Computerized Medical Imaging and Graphics1996,20,4:1
8Using prior shapes in geometric active contours in a variational framework显示文摘CHEN Yun-mei TAGARE H D THIRUVENKADAM S 0,,03:1
9Mortality and morbidity in extremely low birth weight (ELBW) infants in a neonatal intensive care unit显示文摘Tagare A Chaudhari S Kadam S 2013Indian J Pediatr2013,80,1:1
10A theory of photometric stereo for a class of diffuse non-Lainbertian surfaces显示文摘TAGARE H D DEFIGUEYREDO R J P 1991IEEE Trans Pattern Analysis and Machine Intelligence1991,13,2:1
11A theory of photometric stereo for a class of diffuse non-Lambertian surfaces显示文摘Tagare H D Defigueyredo R J P 1991IEEE Trans Pattern Analysis and Machine Intelligence1991,13,2:1
12Using prior shapes in geometric active contours in a variational framework显示文摘Chen Y Tagare H D 2002International Journal of Computer Vision2002,50,3:1
13Staphylococcal scalded skin syndrome in a neonate 显示文摘Kadam S Tagare A Deodhar J 2009IndianJ Pediatr2009,76,10:1
14Mortality and morbidity in extremely low birth weight (ELBW) infants in a neonatal intensive care unit 显示文摘Tagare A Chaudhari S Kadam S 2013Indian J Pediatr2013,80,1:1
15Using prior shapes in geometric active contours in a variational framework显示文摘Chen Y Tagare H D Thiruvenkadam S 2002International Journal of Computer Vision2002,50,3:1
16Energy storage power storage super capacitors 显示文摘TAGARE D 2011US: Wiley-IEEE Press2011,,:1
17Using prior shapes in geometric active contours in a variational framework显示文摘CHEN Y TAGARE H D THIRUVENKADAM S 2002International Journal of Computer Vision2002,50,3:1
18Mortality and morbidity in extremely low birth weight (ELBW) infants in a neonatalKintensive care unit显示文摘Tagare A Chaudhari S Kadam S 2013Indian J Pediatr2013,80,1:1
19Using prior shapes in geometric active contours in a variational framework 显示文摘Chen Y M Tagare H D Thiruvenkadam S 2002International Journal of Computer Vision2002,50,:1
20Medical image collection indexing: shape-based retrieval using KD-tree显示文摘Robinson GP Tagare HD Duncan JS 1996Computerized Medical Imaging and Graphics1996,20,3:1
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