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Topological pz-wave nodal-line superconductivity with flat surface bands in the AH(x)Cr(3)As(3) (A= Na, K, Rb, Cs) superconductors 期刊论文  OAI收割
EPL, 2022, 卷号: 138, 期号: 6, 页码: 66001
作者:  Hao, Juan-Juan;  Zhang, Ming;  Wu, Xian-Xin;  Yang, Fan
  |  收藏  |  浏览/下载：22/0  |  提交时间：2023/01/16
二维 材料应用于电催化 处理废水中铬 、 砷的研究 学位论文  OAI收割
北京: 中国科学院生态环境研究中心, 2020
作者:  李旭恒
  |  收藏  |  浏览/下载：125/0  |  提交时间：2021/07/05
Effects of mn average oxidation state on the oxidation behaviors of as(iii) and cr(iii) by vernadite 期刊论文  iSwitch采集
Applied geochemistry, 2018, 卷号: 94, 页码: 35-45
作者:  Zhang, Shuang;  Chen, Suifeng;  Liu, Fan;  Li, Jiangshan;  Liang, Xiaoliang
收藏  |  浏览/下载：133/0  |  提交时间：2019/04/23
贵州省稻田土壤重金属分布特征 期刊论文  OAI收割
矿物岩石地球化学通报, 2018, 期号: 6, 页码: 1084-1091
作者:  孔祥宇;  黄国培;  程天金;  江帆;  王志伟;  李秋华;  喻子恒;  张华;  姚珩
  |  收藏  |  浏览/下载：51/0  |  提交时间：2019/06/17
为揭示贵州省稻田土壤重金属的超标状况和空间分布特征,采集了92个稻田土壤样品,用icp-ms测定了样品的重金属含量,并运用单因子污染指数法、富集因子法和空间分析法对数据进行了分析处理。结果表明,贵州省稻田土壤的as、cd、cr、cu、ni、pb、sb和zn平均含量分别为(19.7±17.1)、(0.577±0.690)、(91.1±38.6)、(40.5±32.8)、(37.1±20.3)、(35.5±32.0)、(3.59±8.81)和(135±128) Mg/kg  89.1%的点位重金属超标,67.4%的点位为轻微(超标1～2倍)和轻度(超标2～3倍)超标  Ni、as、cd主要由地质高背景成因导致  在成矿区和成矿带上,出现源于人为活动的重金属超标,在一些点位和区域达到了中度超标(超标3～5倍)至重度(超标大于5倍)超标。  
Effects of Mn average oxidation state on the oxidation behaviors of As(III) and Cr(III) by vernadite 期刊论文  OAI收割
APPLIED GEOCHEMISTRY, 2018, 卷号: 94, 页码: 35-45
作者:  Xiang, QJ;  Chu, SQ;  Liang, XL;  Li, JS;  Liu, F
  |  收藏  |  浏览/下载：34/0  |  提交时间：2019/09/24
Effects of Mn average oxidation state on the oxidation behaviors of As(III) and Cr(III) by vernadite 期刊论文  OAI收割
APPLIED GEOCHEMISTRY, 2018, 卷号: 94, 期号: -, 页码: 35-45
作者:  Zhang, Shuang;  Chen, Suifeng;  Liu, Fan;  Li, Jiangshan;  Liang, Xiaoliang
  |  收藏  |  浏览/下载：33/0  |  提交时间：2020/04/08
Competitive sorption of As(V) and Cr(VI) on carbonaceous nanofibers 期刊论文  OAI收割
CHEMICAL ENGINEERING JOURNAL, 2016, 卷号: 293, 期号: 无, 页码: 311-318
作者:  Cheng, Wencai;  Ding, Congcong;  Wang, Xiangxue;  Wu, Zhenyu;  Sun, Yubing
收藏  |  浏览/下载：23/0  |  提交时间：2017/07/17
Comparative study on constitutive relationship of as-cast Ti60 titanium alloy during hot deformation based on Arrhenius-type and artificial neural network models 期刊论文  OAI收割
Materials & Design, 2013, 卷号: 51, 页码: 95-104
W. W. Peng; W. D. Zeng; Q. J. Wang; H. Q. Yu
收藏  |  浏览/下载：30/0  |  提交时间：2013/12/24
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：37/0  |  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.  
The research of digltal CR medicine image adapitive enhancement method (EI CONFERENCE) 会议论文  OAI收割
4th International Conference on Mechanical and Electrical Technology, ICMET 2012, July 24, 2012 - July 26, 2012, Kuala Lumpur, Malaysia
Ming-Hui Z.; Yao-Yu Z.
收藏  |  浏览/下载：66/0  |  提交时间：2013/03/25
Digital CR medicine radiation image is in doctor's favor and has became medicine imaging technology new hot spot because of its high gray contrast  powerful computer disposal function  little radiation dosage  non-film diagnosis  different area consultation. But degradation of digital X-ray medical image such as low contrast and blurring during radiographic imaging  caused by complexity of body tissue and effects of X-ray scattering and electrical noise etc.  can worsen the results of analysis and diagnosis. So it is usually needed that CR medicine image is enhanced to improve its vision quality  and easy to doctor's more accurate diagnosis. The general enhancement algorithms over enhancing the contrast and lose image details  aiming at the defects  an enhancement algorithm for CR image is proposed based on the ratio of deviation to mean of domain. The arithmetic enhance CR image edge details by adjusting factor K based on the ratio of deviation to mean of domain of CR image. Experiment results demonstrate that the algorithm enhances CR image detail and CR image enhanced has good visual effect  the adaptive enhancement method is fit for CR medicine image. (2012) Trans Tech Publications  Switzerland.