|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | An experiment-library least-squares method on on-line coal element contents analysis显示文摘A new experiment-library least-squares(experiment-LLs) method used in the neutron inelastic-scattering and thermal-capture analysis(NITA) technique for on-line coal analysis was developed,which has significantly decreased the non-linear radiation effects.In this method,sixty samples with preset elemental contents were made,from whose experimental spectra twenty single-element spectrum libraries corresponding to twenty kinds of coal were built using the least-squares method.The spectrum of the unknown sample was analyzed based on these twenty libraries to estimate its element contents.With the initial estimated result,the procedure of developing library and analysis was iterated to build a new library with the closest element contents to the unknown sample.Hence the experiment-LLs method can reduce non-linear radiation effects.The experiment-LLs method was performed on an improved coal analysis system which was equipped with a long-life 14 MeV pulsed-neutron generator,a bulk BGO detector with a temperature controller,a moisture meter and coal-smoothing device.The precisions of this system for ash content,water content,volatile content and calorific value have reached 1.0wt%,0.5wt%,1.0wt%,350 kJ/kg,respectively. | WANG HuiDong LU JingBin LU YuPing YANG Dong MA KeYan YANG Kang LIU YuMin CHENG DaoWen | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，11： | 6 |
| 2 | Effects of environmental contaminants on fertility and reproductive health显示文摘Recent research indicates that the human infertility rate is increasing. Although various reasons have been hypothesized for the growing infertility rate, environmental contaminants are potentially important causal agents associated with this change.Chemical contaminants are widespread throughout our environment and human exposure is virtually unavoidable. The overall contribution of environmental exposure to infertility is unknown, but studies involving occupational exposure, together with results from animal experiments, suggest that environmental contaminants may adversely affect fertility. We reviewed the adverse effects of environmental exposure on fertility and related reproductive outcomes. Environmental contaminants covered in this review include heavy metals, organic solvents, pesticides and endocrine disrupting chemicals. It is hoped that this review will highlight the need for further research in this area. | Yanmin Ma Xin He Keyan Qi Tong Wang Yongchao Qi Lele Cui Fengbang Wang Maoyong Song | 2019 | Journal of Environmental Sciences2019，31，3： | 6 |
| 3 | Geochemical Features and Metallogenic Prediction of the Caixiashan-Weiquan Area in the East Tianshan Region显示文摘Caixiashan-Weiquan 区域是在东方 Tianshan metallogenic 带的一个重要矿石集中区域。第一,这份报纸学习 Matoutan mapsheet 的 1:200000 溪流沉积的 1564 件样品的 geochemical 特征,在 Caixiashan 和 Weiquan 存款被定位的地方。处理,探索 geochemical 数据的分析和解释在发现矿石的过程起一个重要作用,它与 geochemical 样品的测量元素内容是否能有效地指导矿物质探索的工作有关。作为一个高度非线性的动态系统,神经网络与常规 geochemical 途径相比以原则和特征更类似于人的大脑。它能使自己适应环境,总结法律,完全的模式识别。第二,作者使用了分类所有的神经网络基于溪流沉积样品的 10 个矿化作用元素取样以便决定可能的矿物质矿石,减少矿石目标的范围并且学习第九组样品的指示物元素的 Kohonen ,它是主要,最近到沉积物,结果证明神经网络能描出 metallogenic 未来的区域并且在深 geochemical 信息的发现是有效的。 | LU Lu ZHU Lixin XIAO Keyan MA Shengming YIN Jiangning XU Mingzuan | 2012 | Acta Geologica Sinica(English Edition)2012，86，4： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员