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Chinese Science Bulletin 2002年第16期47卷 1337-1340页

作者： Weijuan Zhao Aijun Xu Rongwu Li Zhengyao Gao Guoxia Li Jianzhong Xie Guohe Han Songlin Feng Dongyu Fan Ying Zhang et al. Faculty of Physical Engineering Zhengzhou University Zhengzhou China Department of Physics Beijing Normal University Beijing China High Energy Physics Institute The Chinese Academy of Sciences Beijing China Museum of the Terracotta Warriors and Horses of Qin Shihuang’s Mausoleum Xi’an China

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

关键词： fuzzy cluster analysis terracotta warriors and horses of Qin’s Mausoleum the original place of raw material neutron acti-vation analysis microelement analysis.

Combined Action of Copper with IAA on Individual Amino Acids and microelement in Pods of Two Broad Bean Cultivars

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American Journal of Plant Sciences 2019年第4期10卷 670-697页

作者： Hamdia Mahmoud Abd El-Samad Mohamed Abdo Kheder Shaddad Khloud Nagy Shaker Botany Department and Microbiology Faculty of Science Minia University El-Minia Egypt Botany Department Faculty of Science Assiut University Assiut Egypt

It is worthy to mention that the two broad bean cultivars displayed a surprising situation during the fruiting stage of growth. The absolute amount of pods yield was higher in cv. Assiut 125 than in cv. Assiut 84. This situation was in contrast with that in the vegetative stage, where cv. Assiut 84 produced greater vegetative growth than cv. Assiut 125. Although the cv. Assiut 84 was less affected by the highest dose of copper, the cv. Assiut 125 was greatly affected by this dose. However, another surprising situation was recorded when the absolute values of fresh and dry matter of cv. Assiut 125 were much higher than cv. Assiut 84 at any used copper concentration. The fresh matters of the pods of cv. Assiut 84 and cv. Assiut 125 were 7.24 and 10.16 gm at the level of control and 6.69 and 7.59 gm at the level of 350 ppm Cu, respectively. Their dry matters were 1.99 and 3.52 gm at the level of control and 1.77 and 2.13 gm at the level of 350 ppm Cu2+ in cv. Assiut 84 and cv. Assiut 125, respectively. This contradiction was also extended when these copper-affected cultivars were sprayed by IAA. The cv. Assiut 84 responded slightly to IAA treatment. On the other hand, a considerable increase in the dry matter yield was recorded in the pods of cv. Assiut 125 at any used level of copper when compared to the non-sprayed plants treated by the same copper concentration. At the level of 350 ppm Cu2+ , the pod yield was 2-fold that of plants treated only by 350 ppm Cu2+ , without IAA spraying. Thus, even IAA behaved differently in its effect on the crop yield of the two tested broad bean cultivars. There are big and surprising variations in the accumulation of microelements and heavy metals in pods among the two broad bean genotypes, whatever the treatments used. These variations seemed to be complicated which might need further studies. The concentration of amino acids and their individuals also varied among the two cultivars;they increased in cv. Assiut 84 and decreased in

关键词： Synergistic Effect Amino Acids microelement Broad Bean Cultivars

Brief Study on microelement Contents in Topsoils of Farmlands in Xuancheng, South Anhui

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Agricultural Sciences 2018年第6期9卷 718-728页

作者： Anqi Wang Ka Lin Chengxin Ma Qin Gao Qifa Zhu Xuejun Ji Guo Zhang Lin Xue Chaolong Zu Chaoqiang Jiang Jia Shen Decheng Li State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing China University of the Chinese Academy of Sciences Beijing China Institute of Tobacco Science Anhui Agricultural Academy of Sciences Hefei China Wannan Tobacco Co. Ltd. Xuancheng China

The available contents of microelements in the topsoil can influence the yield and quality of flue-cured tobacco. Xuancheng is the dominant tobacco-planting region in Anhui province since 2008. In this paper, the topsoil available Fe, Mn, Cu and Zn contents of 4197 farmlands mainly under rice-rice rotation and wheat-rice rotation in 2008 and of 124 typical farmlands under tobacco-rice rotation in 2015 in Xuancheng city were analyzed in order to disclose the changes and spatial distributions of these microelements and to instruct the reasonable application of the microelement fertilizers. The results showed that the topsoil average available contents in the farmlands under rice-rice rotation or wheat-rice rotation in 2008 were 105.9 mg·kg-1 for Fe, 19.6 mg·kg-1 for Mn, 4.5 mg·kg-1 for Cu, and 3.0 mg·kg-1 for Zn, respectively, increased by 33.14%, 64.29%, 51.11% and 36.67%, respectively, compared with those in the 2nd Soil Survey in 1980s, and the historic, once intensive and overall application of microelement fertilizers was attributed to the great increases. The topsoil average available contents in the farmlands under tobacco-rice rotation in 2015 were 31.1 mg·kg-1 for Fe, 9.8 mg·kg-1 for Mn, 2.1 mg·kg-1 for Cu, and 0.3 mg·kg-1 for Zn, respectively, decreased by 70.63%, 50.00%, 53.33% and 90.00%, respectively, compared with those of the farmlands under rice-rice rotation or wheat-rice rotation in 2008, and the net deficiencies in the input and output of microelements were attributed to the significant decreases in the topsoil microelements. It is necessary to monitor the farmlands under tobacco-rice rotation dynamically and in time in order to decide whether applying microelement fertilizers or not.

关键词： microelement Available Content Topsoil of Farmland Xuancheng City

Changes of microelement content and erythrocyte immune function in patients with cerebral infarction complicated by pneumonia and their relationship with infection indexes

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Journal of Hainan Medical University 2017年第21期23卷 126-129页

作者： Ya-Fang Liu Jun Dai Yun-Qiong Shi Yong-Mei Huang Xiong-Bin Cao Neurology Department Huangshi Central Hospital of Edong Healthcare Group(Affiliated Hospital of Hubei Polytechnic University)in HubeiProvinceHuangshi CityHubei Province435000 Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention in Hubei Province Huangshi CityHubei Province435000 Huangshi Center for Disease Control and Prevention in Hubei Province Huangshi CityHubei Province435000

Objective: To study the changes of microelement content and erythrocyte immune function in patients with cerebral infarction complicated by pneumonia and their relationship with infection indexes. Methods: Patients with cerebral infarction complicated by pneumonia who were treated in Huangshi Central Hospital between April 2014 and February 2017 were selected as the infection group of the research, and patients with cerebral infarction who were treated in Huangshi Central Hospital during the same period were selected as the control group of the research. Serum was collected to determine the contents of trace elements Zn, Fe, Cu, Se and Ca as well as infection index PCT, and peripheral blood was collected to determine the erythrocyte immune function indexes. Results: Serum PCT content of infection group was greatly higher than that of control group. Serum zinc and Fe contents as well as peripheral blood RBC-ICR, RBC-C3bR, FEER, CD58 and CD59 levels of infection group were greatly lower than those of control group, FEIR level in peripheral blood was obviously higher than that of control group, and Cu, Se and Ca contents were not greatly different from those of control group;serum zinc and Fe contents as well as peripheral blood RBC-ICR, RBC-C3bR, FEER, CD58 and CD59 levels of infection group of patients with high PCT content were remarkably lower than those of patients with low PCT content, FEIR level in peripheral blood was significantly higher than that of patients with low PCT content, and Cu, Se and Ca contents were not greatly different from those of patients with low PCT content. Conclusion:The deficiency of microelements Zn and Fe as well as the weakening of erythrocyte immune function is closely related to the degree of infection in the patients with cerebral infarction complicated by pneumonia.

关键词： Cerebral infarction Pneumonia Procalcitonin microelement Erythrocyte immunity

SVM Method Used To Study Gender Differences Based On microelement

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SVM Method Used To Study Gender Differences Based On Microel...

Distribution of microelements and Their Influence on the Corrosion Behavior of Aluminum Foil

第十一届全国计算（机）化学学术会议

作者：杜军唐斌 Department of Chemistry Luzhou Medical College

＜正＞objective Intelligent Algorithm of SVM is used for studying gender differences based on microelement data,which provide reference For the application of microelement in healthy people,such as providing technical support for the investigation of cases.[Method]Our Long-term test results on hair microelement of health people were *** vector machine （SVM） is used to classified model of male and female based on microelement *** radical basis function（RBF） is adopted as a kernel function of SVM,and the model adjusts C and a to build the optimization classifier,[Result]Healthy population of men and women of manganese, cadmium and nickel are quite different,The classified model of microelement based on SVM can classifies the male and female,the correct classification ratio set to be 81.71%and 66.47%by SVM based on 7 test date and 3 test data selection.[conclusion]The classified model of microelement data based on SVM can classifies male and female.

关键词： Terms - Female Male microelement Support vector machine(SVM)

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Journal of Materials Science & Technology 2005年第1期21卷 43-46页

作者： Weimin MAO, Heng JIANG, Ping YANG, Huiping FENG and Yongning YUDepartment of Materials, University of Science and Technology Beijing, Beijing 100083, ChinaProf., Ph.D., Dept. of Mat. Univ. of Sci. and Technol. Beijing Beijing 100083 China

The distribution of microelement Fe, Si, Cu and Mg in the surface layer of aluminum foil annealed at 300℃ and 500℃ were determined by secondary ion mass spectrometer. The corrosion structure produced by electrochemical etching was also observed. It was found that the Mg concentration at external surface was increased exponentially over the fourth degree and promoted by higher annealing temperature, which will increase the number of corrosion pits inside the large grains, and therefore the specific capacity of the foils for electrolytic capacitors. The similar effects of microelement Fe, Si and Cu were not so strong.

关键词： Electrolytic capacitor Aluminum foil microelement Corrosion structure

MIGRATION CHARACTERISTICS OF microelementS IN PROCESS OF LANDSCAPE GEOCHEMISTRY IN *** AREA

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Chinese Geographical Science 1992年第3期2卷 51-61页

作者：窦贻俭彭补拙赵培道刘育民李春华 Department of Geo-and Ocean Science Nanjing University Nanjing 210008 PRC

To provide scientific basis for appraising natural resources in Mt. Namjagbarwa area, the migration characteristics of geochemical microelements, such as Zn, V, Ti, Pb, Ni, Cu, Cr, Co, Be and Ba, in the landscape zones of alpine scrub and meadow, the mountainous dark coniferous forest, the mountainous mixed broadleaf and coniferous forest, the mountainous quasi-subtropical semi-evergreen broadleaf forest, the mountainous subtropical evergreen broadleaf forest, and the valley quasi-tropical monsoon rainforest have been described in the paper.

关键词： microelement migration landscape zone Mt. Namjagbarwa area

Microwave digestion polarography for determining seven trace elements in Salvia Miltiorrhiza Root and compound Salvia Miltiorrhiza Root injection simultaneously

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Journal of Central South University of Technology 2007年第4期14卷 514-519页

作者：黄熠张泰铭曹娟梁逸曾 School of Chemistry and Chemical Engineering Central South University

The sensitive second derivative waves of Cu(Ⅱ),Pb(Ⅱ),Cd(Ⅱ),Ni(Ⅱ),Zn(Ⅱ),Fe(Ⅱ)and Mn(Ⅱ),forming in the substrate solution(pH=9.26)consisting of ammonia,ammonium chlorid,gelatin and ascorbic acid were *** peak potentials of the polarographic waves of the seven ions are at about 0.48,0.63,0.79,1.04,1.28,1.44 and 1.60 V *** with microwave technique,a new method for the simultaneous determination of the seven trace elements in Chinese traditional medicine was *** method is easy to operate,rapid,simple and *** the signal-to-noise rate equals 3,the detection limits of Cu,Pb,Cd,Ni,Zn,Fe and Mn are 4.2×10 3,5.3×10 3,2.1×10 3,5.8×10 4,3.0×10 3,7.7×10 4 and 1.1×10 3 μg/mL *** linear relationships exist between the concentrations and the peak currents when Cu,Pb,Cd,Ni,Zn,Fe and Mn concentrations are within 8.5×10 3 10,9.7×10 3 10,4.5×10 3 10,1.2×10 3 10,6.4×10 3 10,1.5×10 3 10 and 2.8×10 3 10 μg/mL,*** method has been used to the simultaneous determination of the seven trace elements in Salvia Miltiorrhiza Root and compound Salvia Miltiorrhiza Root injection,the relative standard deviations(RSDs)of the Cu,Pb,Cd,Ni,Zn,Fe and Mn in the two medicines are 3.9% and 5.8%,4.0% and 4.1%,4.3% and 5.7%,4.9% and 5.3%,4.4% and 4.7%,3.5% and 4.0%,0.51% and 2.8%,respectively;the comparisons of the determination results with the values obtained by the standard method indicate that the presented method has very well veracity.

关键词： derivative polarographic wave microelement Salvia Miltiorrhiza Root compound Salvia Miltiorrhiza Root injection

Photosynthetic capability and Fe, Mn, Cu, and Zn contents in two Moraceae species under different phosphorus levels

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Acta Geochimica 2016年第3期35卷 309-315页

作者： Deke Xing Yanyou Wu Rui Yu Yansheng Wu Chuan Zhang Zheng Liang Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education Institute of Agricultural Engineering Jiangsu University Research Center for Environmental Bio-Science and Technology State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences

The strong adaptability of Broussonetia papyrifera （L.） Vent. to low phosphorus （P） conditions can be attributed to the large amount of root-exuded organic acids and the high efficiency of P extraction. However, microelement contents are influenced by low-P stress, and their effects on the photosynthetic capability of B. pa- pyrifera remain unknown. In this study, we investigated the effects of low-P treatment on net photosynthetic rate （PN）; chlorophyll a fluorescence （ChlF） characteristics; and Fe, Mn, Cu, and Zn contents of B. papyrifera and Morus alba L. seedlings. Results show that B. papyrifera exhibited better photosynthetic capability under moderate P defi- ciency （0.125, 0.063, and 0.031 mmol/L P treatments）, whereas the photosynthetic capability of M. alba decreased under moderate and severe P deficiency （0.016 and 0 mmol/L P treatments）. Under moderate P deficiency, the decrease in Cu and Zn contents in B. papyrifera was lower than that in M. alba. Under severe P deficiency, a consid- erable decrease of photosynthetic capability in B. pa- pyrifera and M. alba was associated with low Cu and Zn contents. The PN of the two Moraceae species exhibited a better correlation with Cu and Zn contents than with Fe or Mn content. P deficiency could not only decrease cyclic photophorylation and photosynthetic efficiency, but could also affect the stability of thylakoid membrane structureand electron transport efficiency by influencing the con- tents of Cu or Zn, thereby affecting photosynthesis.

关键词： Adaptability Chlorophyll a fluorescence microelement Organic acids Sensitive

Effects of Different Nitrogen Fertilizer Levels on Fe,Mn,Cu and Zn Concentrations in Shoot and Grain Quality in Rice (Oryza sativa)

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Rice science 2007年第4期14卷 289-294页

作者： HAO Hu-lin WEI You-zhang YANG Xiao-e FENG Ying WU Chun-yong Key Laboratory of Environment Remediation and Ecosystem Health Ministry of Education College of Natural Resource and Environment Science Zhejiang University Hangzhou 310029 China

In a pot experiment, effects of N fertilizer application on the concentrations of Fe, Mn, Cu and Zn in shoot of rice and the quality of brown rice were studied. In the treatments with N fertilizer application, the concentrations of Fe, Mn, Cu and Zn in most parts of rice shoot increased compared with control （no N fertilizer application）. This indicated that the transportation ability of microelements from root to shoot in rice was improved with N fertilizer application. Effect of N fertilizer on IR68144 was similar to that of on IR64, but the concentrations of the microelements in plant differed, suggesting that the characteristic expression of the two rice genotypes was not controlled by the amount of N fertilizer supplied. The concentrations of those microelements in brown rice increased at first and then decreased with increasing N fertilizer application, reaching the highest at 160 kg/ha, at which the Fe, Mn, Cu and Zn concentrations in brown rice increased by 28.96%, 41.34%, 58.31% and 16.0% for IR64, and by 22.16%, 13.75%, 8.75% and 20.21% for IR68144 compared with control, respectively. Moreover, N fertilizer promoted the accumulation of protein, decreased the accumulation of amylose in grain, and enhanced gel consistency of brown rice. These results indicate that appropriate N fertilizer management could increase micronutrient contents in grain and improve nutrition quality of rice.

关键词： rice nitrogen fertilizer microelement quality trait nutrient concentration protein content amylose content