Effect of Tilt Angle of Surface to be Measured on Differential Confocal Microscope Pointing Signal

普通共焦显微镜的轴向响应特性,因受到被测量表面的倾斜角影响引从而起轴向响应特性变化,而应用差动共焦光学系统对超精密加工的表面进行瞄准测量时,差动系统的瞄准信号也受到影响,并进而影响到测量系统对加工表面的测量精度及分辨特性。通过对差动共焦测量系统输出信号理论模型的分析得出被测量面的倾斜角变化不影响差动共焦输出信号零点位置;倾角在一定范围内变化时不影响瞄准测量分辨力的结论,并给出了实验分析结果。The axial response of conventional confocal microscope is affected by the tilt angle of the surface to be measured.When the ultra-precisely machined surface is measured with pointing method based on the differential confocal microscope,the tilt angle of the surface to be measured influences the pointing signal,as well as the measuring accuracy and resolution of the treated surface.On the basis of the analysis of the theoretical model of the output signal of differential confocal microscope,it is concluded that the zero point is independent of the tilt angle of surface to be measured and the resolution of the pointing signal is not affected with the tilt angle in a certain range.The experimental results are also presented

Development of internet of things for vehicle to promote electric vehicles large-scale demonstration application in Chinese cities

Conference Name:2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011. Conference Address: Inner Mongolia, China. Time:July 15, 2011 - July 17, 2011.Electric vehicles is a new energy and environmentally friendly vehicles. But in the process of development and popularization of electric vehicles, China is facing many difficulties. By introducing a convenient rental system for electric vehicles based on internet of things for vehicle, electric vehicles can be applied in large-scale in Chinese cities. ? 2011 IEEE

A hypergraph based semi-supervised band selection method for hyperspectral image classification

Conference Name:2013 20th IEEE International Conference on Image Processing, ICIP 2013. Conference Address: Melbourne, VIC, Australia. Time:September 15, 2013 - September 18, 2013.The Institute of Electrical and Electronics Engineers (IEEE) Signal Processing SocietyBand selection is a fundamental problem in hyperspectral data processing. In this paper, we present a semi-supervised learning approach and a hypergraph model to select useful bands based on few labeled object information. The contributions of this paper are two-fold. Firstly, the hypergraph model captures multiple relationships between hyperspectral image samples. Secondly, the semi-supervised learning method not only utilizes unlabeled samples in the learning process to improve model performance, but also requires little labeled samples which can significantly reduce large amount of human labor and costs. The proposed approach is evaluated on AVIRIS and APHI datasets, which demonstrate its advantages over several other band selection methods. ? 2013 IEEE

塔里木盆地中盐度地下水棉花膜下滴灌技术开发与示范

主要技术内容：(1)塔里木盆地矿化度为2-7g/L的中盐度地下水资源量及其可开采量研究。(2)膜下滴灌棉花耐盐指标及灌溉水矿化度控制指标研究。(3)膜下中盐度地下水滴灌棉田水盐调控技术研究。(4)中盐度地下水源膜下滴灌技术体系和灌排模式集成与示范。技术经济指标：(1)主要技术指标为：示范区根区土壤含盐量减少5%-10%或根区土壤含盐量控制在1%以下；与现状膜下滴灌灌溉定额(全生育期，包含洗盐水，350-400m<'3>/亩)相比，水分利用效率提高5%-15%，作物增产5%-15%；中盐度地下水棉花膜下滴灌技术规程1套；出版专著2部，发表期刊论文及硕(博)士学位论文42篇(其中SCI收录4篇、EI收录6篇)；培养研究生7名(其中博士2名)。(2)经济指标为：在课题实施过程中，在尉犁县塔里木乡建成面积为7300亩的中盐度地下水棉花膜下滴灌示范区、200亩矿化度为7-10g/L的高盐度地下水棉花膜下滴灌示范区。应用推广及效益情况：中或高盐度地下水和淡水(≤2g/L)轮灌技术在尉犁县塔里木乡塔里木村示范区(总面积5000亩)、东海子村示范区(2300亩)和南海子村试验示范区(200亩)得到成功的应用，2009-2012年累计新增产值1209.55万元。实施6-8次中或高盐度地下水和1-3淡水、微咸水膜下滴灌技术，棉花平均产量可以达到438.2kg/亩以上，为当地缺水区域3次淡水、4-5次中盐度地下水滴灌棉田产量(385.0kg/亩)1.14倍，可以从根本上改变当地缺水区域农民的经济状况。实施中、高盐度地下水滴灌技术后，可以极大地缓解塔里木盆地(尤其是干旱年份)灌区农户争水现象，从而促进当地社会稳定。实施中盐度地下水(3-7g/L)、高盐度地下水(7-10g/L)和淡水(≤2g/L)、微咸水(2-3g/L)轮灌技术后，棉田节约淡水和微咸水196.2m3/亩，节约淡水和微咸水36.7%，可以将有限的淡水和微咸水资源调配给耐盐性相对较差的其他作物(如小麦、玉米等)的灌溉，从整体上提高了塔里木盆地农业灌溉的保证率。在充分、合理地开发当地中盐度和高盐度地下水的前提下，可以有效地减少灌区用水量，从而保证区域生态用水。适度开发利用灌区内部的中、高盐度地下水，有利于降低灌区地下水位，减缓灌区土壤次生盐渍化的发生与发展。因此，开发利用中盐度和高盐度地下水资源具有重要的环境效益

塔里木中盐度地下水棉花膜下滴灌技术开发与示范

主要技术内容： (1)塔里木盆地矿化度为2～7g/L的中盐度地下水资源量及其可开采量研究。 (2)膜下滴灌棉花耐盐指标及灌溉水矿化度控制指标研究。 (3)膜下中盐度地下水滴灌棉田水盐调控技术研究。 (4)中盐度地下水源膜下滴灌技术体系和灌排模式集成与示范。 技术经济指标： (1)主要技术指标为：示范区根区土壤含盐量减少5%～10%或根区土壤含盐量控制在1%以下;与现状膜下滴灌灌溉定额(全生育期,包含洗盐水,350～400m3/亩)相比,水分利用效率提高5%～15%,作物增产5%～15%;中盐度地下水棉花膜下滴灌技术规程1套;出版专著2..