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proportion-gain
相关语句
  相似匹配句对
     proportion;
     景物的尺寸比例 ;
短句来源
     The constituent proportion of N. P.
     影响最大的是N,其次是P,K居尾。
短句来源
     The Definition and Proportion of I-injective Modules
     I-内射模的概念及性质
短句来源
     Results The proportion of G-bacilli were much.
     结果G-杆菌比例居多,条件致病菌和酵母样真菌检出机会显著增高;
短句来源
     LOSS AND GAIN
     得与失
短句来源
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Spread of planting cotton with great area and high density made per unit area's economy benefit increases year after year,harvest trunk of atree approximately 24 ten thousand upwards per ha.great proportion gain seed cotton yield six thousand kilogram per ha.The paper studied cotton high density planting accommodate range and that matches agriculture measure.The research showed middling fertility cotton farmland in south of Xinjiang,mid maturation tighten gather cotton variety,it's in order density 18~24...

Spread of planting cotton with great area and high density made per unit area's economy benefit increases year after year,harvest trunk of atree approximately 24 ten thousand upwards per ha.great proportion gain seed cotton yield six thousand kilogram per ha.The paper studied cotton high density planting accommodate range and that matches agriculture measure.The research showed middling fertility cotton farmland in south of Xinjiang,mid maturation tighten gather cotton variety,it's in order density 18~24 ten thousand individual plant per ha.DPC's dosage 220 gram per ha. individual plant height 60~65 cm,fruit branch count 6~8.

棉花高密度栽培的大面积推广 ,使得植棉垦区单位面积上植棉效益逐年增加 ,收获株数在 2 4万株·hm-2以上 ,大面积获得籽棉产量 6 0 0 0kg·hm-2 以上 ,针对此情况进行棉花高密度栽培的适应范围和与其配套的农艺措施的研究 ,研究表明 :南疆棉区中等肥力棉田 ,中熟紧凑型棉花品种 ,适宜密度在 18万~ 2 4万株·hm-2 ,缩节胺用量 2 2 0 g·hm-2 左右 ,株高 6 0~ 6 5cm ,果枝数 6~ 8台

Comparing with traditional steering system the electric power steering (EPS) system of the automobiles is simpler in structure, more flexible; and can fully meet the requirements of steering performances. EPS also has prominent advantages in the comfortableness and security of steering, energy saving, and environmental protection. An introduction of the structure of EPS and its working principle were described in this paper. The transfer function and frequency characteristic of the system, in which the steering...

Comparing with traditional steering system the electric power steering (EPS) system of the automobiles is simpler in structure, more flexible; and can fully meet the requirements of steering performances. EPS also has prominent advantages in the comfortableness and security of steering, energy saving, and environmental protection. An introduction of the structure of EPS and its working principle were described in this paper. The transfer function and frequency characteristic of the system, in which the steering angle was regarded as the input and the torque of steering axle was regarded as the output, was established, and the influence of all the parameters of the system on the handiness, steady state error and track of the steering system was discussed. The results showed that in order to optimize the effects of steering performances, control the steady error, and improve the sensitivity of the response, characteristic of amplitudefrequency and phasefrequency should be altered by choosing different proportion gain, integral gain, and differential gain. The detailed hardware control design was also given.

与传统的转向系统相比较,汽车电动助力转向系统(EPS)结构简单,灵活性好,能充分满足汽车转向性能的要求,在操作的舒适性、安全性和节能、环保等方面显示出显著的优越性。介绍了汽车电动助力转向系统的结构和工作原理,以方向盘转角为输入、输入轴扭矩为输出,推导出系统的传递函数和频率特性,定量地分析了参数对转向轻便性、稳态误差和跟踪性的影响。结果显示,在一定范围内选择不同的比例增益、积分增益和微分增益,可以使幅频特性和相频特性发生变化,达到优化转向系统的助力作用、控制助力稳态误差和提高响应的灵敏度的目的。同时给出了系统的控制电路图。

CLUE-s (Conversion of Land Use and its Effects in small extent) is a model for simulating spatial changes in land use. The model was applied for regional agriculture and forest land-use system simulations in many countries. The author extended the CLUE-s model with a dynamic neighborhood analysis. The extended model (CLUE-sII) could simulate the self-organizational processes, spontaneous processes and the competition processes of the land-use changes. CLUE-sII can also implement different simulation schemes...

CLUE-s (Conversion of Land Use and its Effects in small extent) is a model for simulating spatial changes in land use. The model was applied for regional agriculture and forest land-use system simulations in many countries. The author extended the CLUE-s model with a dynamic neighborhood analysis. The extended model (CLUE-sII) could simulate the self-organizational processes, spontaneous processes and the competition processes of the land-use changes. CLUE-sII can also implement different simulation schemes according to the characteristics of the study area. The local factors and the neighborhood factors play different roles in each scheme. Therefore, the researchers could find the best scheme for the specific study area. Land use change from 1991 to 2001 is simulated using CLUE-sII for Haidian District, Beijing. The results indicate that neighborhood factor analyse is important to simulate urban land-use changes and the scheme that took the neighborhood factor as a magnifying factor to the spontaneous processes obtained the best results, with which the whole map correspondence proportion gained 77% and the Kappa of urban attained 0.754. The case study in this paper showed that CLUE-sII could simulate urban sprawl with multiple land-use types at a high spatial and temporal resolution. Through constructing multiple simulation schemes, one can not only find the best simulation performance, but also could obtain more information on the importance of different land-use drivers.

CLUE-S模型是一个基于经验统计原理的模拟多土地利用类型空间变化的动态模拟模型,它在世界多个国家和地区的区域尺度农业、森林为主的土地利用变化模拟中得到应用。作者对CLUE-S模型进行了改进,改进后的模型(CLUE-SII)引入了动态计算的邻域分析因子,可以对土地利用变化中的自发过程、自组织过程和土地利用类型间的竞争进行模拟,还可以根据研究区域特点构建不同的模拟方案,在这些模拟方案中,局地因子和邻域因子在土地利用变化中的作用方式不同。应用CLUE-SII对北京市海淀区1991~2001年土地利用变化进行了多方案模拟,结果表明邻域因子对城镇用地变化具有重要作用,其中将邻域因子看作自发过程放大因子的模拟方案获得了较好的模拟结果,整图符合比达到77%,其中城镇用地符合比达到82%,Kappa值达到0.754。CLUE-SII在北京市海淀区的应用实例表明,该模型可以对高分辨率和多土地利用类型下的城市扩展进行有效模拟,扩展了CLUE-S的应用领域;通过构建多模拟方案,不但可以探索最佳的模拟结果,还可以研究和分析不同土地利用驱动因子在土地利用变化中的作用模式。

 
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