共查询到20条相似文献,搜索用时 15 毫秒
1.
磁州窑是宋、金、元时期北方最著名的民间窑场之一,其烧制的以铅为助溶剂的氧化铜绿釉器装饰技法和装饰品种丰富多彩.为了解不同时期绿釉器的原料来源和配方,以及它们之间的关系,用质子激发X射线荧光分析(PIXE)技术无损测定磁州窑观台窑址不同时期11个样品胎、釉的化学组成,对这些数据分别进行模糊聚类分析,结果表明:多数宋金时期绿釉器胎样品的胎料来源相对比较集中;多数金代绿釉器胎样品的胎料来源相对比较分散;多数金代绿釉器样品的釉料来源相对比较集中,配方变化相对较小;多数宋金时期绿釉器样品的釉料来源相对有些分散,配方变化比较多;护胎酱釉的釉料来源和绿釉明显不同. 相似文献
2.
ZHAO Weijuan Xu Aijun LI Rongwu GAO Zhengyao LI Guoxia XIE Jianzhong HAN Guohe FENG Songlin FAN Dongyu ZHANG Ying CAI Zhifang Zhang Zhongli ZHU Junxiao 《科学通报(英文版)》2002,47(16)
In order to search for sources of the raw material of the Qin's terracotta warriors and horses, we selected 20 samples of pottery warriors and pottery horses of the Qin's Mausoleum from pit No. 1, 19 samples of pottery warriors and brick from pit No. 2, 20 samples of clays near the Qin's Mausoleum and 2 samples of Yaozhou porcelain bodies. The 32 kinds of element content of each sample were measured by neutron activation analysis (NAA). These data were analyzed by fu zzy cluster analysis, the trend cluster analysis diagram was obtained. The results showed that samples of terracotta warriors and horses from pits No.1 and No. 2 were closely related to the loam layer near Qin's Mausoleum, but their relations with the loess layers were not so close, and they were out of all relation to Yaozhou porcelain bodies. Thus, it could be deduced that the Li Mountain clay may be considered as the original place of the raw materials of the terracotta warriors and horses, the kiln sites might be located nearby the Qin's Mausoleum. 相似文献
3.
选取天青、天蓝、月白色汝官瓷样品27个、钧官瓷样品25个,将这些样品进行质子激发Χ射线荧光分析(PIXE),测定每个样品的化学组分.将所有样品的7种主量化学组成数据进行模糊聚类分析,得到以下结果:对于所分析的样品,其中钧官瓷胎样品的原料产地比较集中,汝官瓷胎的原料产地稍分散一些;多数汝官瓷胎和钧官瓷胎样品的原料产地接近但不相同,个别汝官瓷胎和钧官瓷胎样品有混在一起的情况;汝官瓷釉和钧官瓷釉样品的原料产地和配方明显不同但关系不是很远. 相似文献
4.
Weijuan Zhao Aijun Xu Rongwu Li Zhengyao Gao Guoxia Li Jianzhong Xie Guohe Han Songlin Feng Dongyu Fan Ying Zhang Zhifang Cai Zhongli Zhang Junxiao Zhu 《科学通报(英文版)》2002,47(16):1337-1340
In order to search for sources of the raw material of the Qin’s terracotta warriors and horses, we selected 20 samples of
pottery warriors and pottery horses of the Qin’s Mausoleum from pit No. 1, 19 samples of pottery warriors and brick from pit
No. 2, 20 samples of clays near the Qin’s Mausoleum and 2 samples of Yaozhou porcelain bodies. The 32 kinds of element content
of each sample were measured by neutron activation analysis (NAA). These data were analyzed by fuzzy cluster analysis, the
trend cluster analysis diagram was obtained. The results showed that samples of terracotta warriors and horses from pits No.1
and No. 2 were closely related to the loam layer near Qin’s Mausoleum, but their relations with the loess layers were not
so close, and they were out of all relation to Yaozhou porcelain bodies. Thus, it could be deduced that the Li Mountain clay
may be considered as the original place of the raw materials of the terracotta warriors and horses, the kiln sites might be
located nearby the Qin’s Mausoleum. 相似文献
5.
The technique of neutron activation analysis (NAA) has been employed to measure the content of 29 kinds of elements in the sample of Yaozhou porcelain bodies,Then a fuzzy cluster analsis has been conducted to the NAA data and a diagram of the dynamic fuzzy cluster analysis has been achived,The results indicate that the batch of ancient Yaozhou porcelain bodies,which were of different overglaze color and were produced by different kilns during a period of over 800 years from the Tang Dynasty (618-907 A.D.) to the Yuan Dyansty(1271-1368 A.D.) ,has shared a stable and concentrated raw material source,Provenances of porcelain bodies from different times ,though having their specific independence ,enjoy a close relationship and are not far from one another,Provenances of porcelain bodies made during the Tang Dynasty and the Five Dynasties (907-960 A.D.)are found to be closer to one another,while those of the Song (960-1279A.D.) and the Jin Dynasty (1115-1234 A.D.)are comparatively concentrated in certain areas and are different from those of the Tang Dynasty .Both the tri-colored glazed pottery made in Yaozhou kilns during the Tang Dynasty and the Yaozhou porcelain bodies of the Tang period are from the same provenance. 相似文献
6.
鲤亚科Cyprininae是鲤科Cyprininidae中的一个类群,先定46个特征,采用模糊聚类分析方法,用TURBO PASCAL语言,在IBM-PC计算机上进行定量分类,分类结]果,分为5个属,2个亚属,21个种 相似文献
7.
8.
9.
The risk recognition model for preventing and monitoring the Coronary Heart Diseases (CHD) in the aged is proposed, which is based on the testing results of four indexes and includes Low Density Lipoprotein (LDL), Total Cholesterol (TC), Triglyceridemia (TG) and age. Some people who took the health checkup in Shanghai Xinhua Hospital are classified into 3 groups, and each group is associated with prevalence risk of contracting CHD. Then the fuzzy recognition method is applied to evaluate the risk of CHD. The accuracy rate is up to 85%. The model is applicable to not only analysis of risk in medical but also analysis of risk in finance, insurance and some other fields. 相似文献
10.
11.
教材质量的评判是选择教材的关键,涉及教材质量的因素较多,且各因素具有模糊性.论文应用模糊数学理论对教材质量评价方法进行了探讨.建立综合评价教材质量的指标体系,利用层次分析法(AHP),通过调整成对比较矩阵,保证其不一致程度在容许范围之内并判断随机一致性比率CR,确定各评价指标的权重,运用二级模糊评价方法对教材质量综合评价进行优选,并结合实例进行综合分析.运用该模型可以对教材质量进行公正、科学的评价. 相似文献
12.
申明金 《广西民族大学学报》2005,11(3):82-84
选用茶叶的6个化学参数,运用模糊K均值聚类分析方法进行分类研究,得到了比判别分析等其他方法更为丰富的信息,有利于对分析结果进行研究,是一种具有优势的模式识别方法. 相似文献
13.
用模糊K均值聚类分析研究茶叶分类 总被引:2,自引:0,他引:2
申明金 《广西民族大学学报》2005,11(3):82-84
选用茶叶的6个化学参数,运用模糊K均值聚类分析方法进行分类研究,得到了比判别分析等其他方法更为丰富的信息,有利于对分析结果进行研究,是一种具有优势的模式识别方法. 相似文献
14.
GENG Xinhua GENG Ansong XIONG Yongqiang LIU Jinzhong ZHANG Haizu ZHAO Qingfang 《科学通报(英文版)》2006,51(23):2885-2891
The kinetic parameters of hydrocarbon generation from the marine carbonate source rocks were determined and calibrated through kinetic simulating experiment. The kinetic parameters of hydrocarbon generation then were extrapolated to geological condition by using the relative software. The result shows that gaseous hydrocarbons (C_1, C_2, C_3, C_(4-5)) were generated in condition of 150℃相似文献
15.
16.
太原市冲积平原区包气带防止潜水污染的分析 总被引:2,自引:0,他引:2
根据戈里德别尔格提出的确定敏感性指数的思路,应用模糊评判法对太原市冲积平原区包气带防止潜水污染的敏感性进行了定性分析,并在此基础上提出了相应的防治措施。 相似文献
17.
石必明 《安徽理工大学学报(自然科学版)》1994,(2)
本文运用模糊聚类分析方法对煤矿采掘工作面煤与瓦斯突出危险性进行分类。提高了煤与瓦斯突出危险性预测的科学性和准确性。通过对淮南矿区部分突出资料的验算,证明了预测的可靠性。 相似文献
18.
19.
20.
香蕉提取物对霍山石斛原球茎增殖的影响 总被引:6,自引:3,他引:6
报道了香蕉提取物的浓度和添加方式对霍山石斛原球茎增殖的影响.结果表明,1/2MS附加5%~10%香蕉提取物适宜霍山石斛原球茎增殖. 相似文献