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	Economic strategies of plant absorptive roots vary with root diameter 期刊论文 OAI收割 BIOGEOSCIENCES, 2016, 卷号: 13, 期号: 2, 页码: 415-424 Kong, D. L.; Wang, JJ; Kardol, P; Wu, HF; Zeng, H; Deng, XB; Deng, Y 收藏 \| 浏览/下载：53/0 \| 提交时间：2016/03/30 IMPROVES DROUGHT TOLERANCE LIFE-SPAN ECOLOGICAL STRATEGIES FORAGING STRATEGIES LEADING DIMENSIONS CHINESE TEMPERATE TISSUE DENSITY TRAITS TREES LEAF
	The Improved Biological Performance of a Novel Low Elastic Modulus Implant 期刊论文 OAI收割 Plos One, 2013, 卷号: 8, 期号: 2 L. Shi; L. Shi; L. Wang; Y. H. Duan; W. Lei; Z. Wang; J. Li; X. L. Fan; X. K. Li; S. J. Li; Z. Guo 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/12/24 in-vivo biomechanical characterization biomedical applications tissue differentiation titanium implants mineral density dental implants shape-memory bone loss rabbit
	The application of adaptive enhancement algorithm based on gray entropy in mammary gland CR image (EI CONFERENCE) 会议论文 OAI收割 2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012, April 21, 2012 - April 23, 2012, Three Gorges, China Zhang M.-H.; Zhang Y.-Y. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 Mammary gland is composed entirely of soft tissue with approximate density therefore mammary gland CR medicine radiation image presents a low contrast and slight difference changes may be a manifestation of tumor so it is necessary to enhance mammary gland CR image to improve its visual quality in order to meet the demands of doctor's clinical diagnosis. However the general enhancement algorithms over enhance the contrast and noise due to image details lost aiming at the defects a mammary gland CR medicine image adaptive enhancement arithmetic based on image gray entropy is put forward. The arithmetic adapts dizzy image to magnify selected spatial frequency response in order to enhance the edge details of mammary gland CR images. It can adjust weighted factor K according to image gray characteristics namely pixel gray entropy. Experiments results demonstrate that mammary gland CR image enhanced by the algorithm has abundant details and high signal-to-noise ratio moreover CR image enhanced has good visual effect. So the method is effective and fit for enhancing CR medical radiation image edge details. 2012 IEEE.
	Application of adaptive enhancement means in head and neck CR image (EI CONFERENCE) 会议论文 OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China Zhang M.-H.; Zhang Y.-Y. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 Digital CR of head and neck overcomes the disadvantage of regular X-ray radiography which can not reveal bone and soft tissue position deficiency in one exposing and reduces the Xray radiation dose. Meanwhile various factors cause the decline of image quality and images must be enhanced in order to meet demands of doctor's clinical diagnosis. The general enhancement algorithms don't consider body's structure differences and density characteristics. A new adaptive CR enhancement algorithm was proposed in this article and head and neck CR images were processed with this method and compared with linear unsharp masking method. The experiment proves that the details of CR image enhanced were abundant and enhanced CR image had good visual effect SNR was high as well as detail variance /background variance (DV/BV) indicating that this algorithm is suitable for head and neck CR medical images. (2012) Trans Tech Publications Switzerland.
	Flowering phenology and height growth pattern are associated with maximum plant height, relative growth rate and stem tissue mass density in herbaceous grassland species 期刊论文 OAI收割 JOURNAL OF ECOLOGY, 2011, 卷号: 99, 期号: 4, 页码: 991-1000 Sun, Shucun; Frelich, Lee E. 收藏 \| 浏览/下载：18/0 \| 提交时间：2012/11/09 determinants of plant community diversity and structure height growth trajectory leaf mass per area life-history strategy maximum plant height RGR stem tissue mass density