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| 1 | 经验公式对全国煤实测发热量的检验*显示文摘选择一些经验公式对48个来自全国的无烟煤煤样的发热量实测值的可靠性进行了检验,发现仅凭一两个经验公式的检验结果很难对实测结果的可靠性作出正确的评价,不同经验公式的检验结果有时具有很大差异.某个样品实测值在通过经验公式检验时出现了偏差超标值,而在用另一经验公式检验时其偏差却很低.总的来说,利用元素指标经验公式对样品发热量进行计算检验时,其计算值与实测值偏差一般小于工业分析指标经验公式,而不同矿区经验公式的准确性比一般经验公式高,对来自不同矿区的样品实测发热量采用矿区专用公式进行检验审核会更好. | 胡军 郑宝山 吴代赦 Belkin H E | 2006 | 煤炭转化2006,29,1: | 10 |
| 2 | Preliminary study on the mode of occurrence of arsenic in high arsenic coals from southwest Guizhou Province显示文摘Coal samples from high arsenic coal areas have been analyzed by electron microprobe analyzer ( EMPA) , scanning electron microscopy with an energy dispersive X-ray analyzer (SEM-EDX) , X-ray diffraction analysis (XRD) , low temperature ashing (LTA) , transmission electron microscopy (TEM) , X-ray absorption fine structure (XAFS) , instrument neutron activation analysis (INAA) and wet chemical analysis. Although some As-bearing minerals such as pyrite, arsenopyrite, realgar (?), As-bearing sulfate, and As-bearing clays are found in the high arsenic coals, their contents do not account for the abundance of arsenic in the some coals. Analysis of the coal indicates that arsenic exists mainly in the form of As5+ and As3+ , combined with compounds in the organic matrix. The occurrence of such exceptionally high arsenic contents in coal and the fact that the arsenic is dominantly organically associated are unique observations. The modes of occurrence of arsenic in high As-coals are discussed. | 丁振华 郑宝山 张杰 H. E. Belkin R. B. Finkelman 赵峰华 周代兴 周运书 陈朝刚 | 1999 | Science China Earth Sciences1999,42,6: | 8 |
| 3 | 黔西南高砷煤中砷赋存状态的XAFS和铁的Mssbauer谱研究显示文摘利用X射线吸收精细结构分析 (XAFS)和铁的穆斯堡尔谱 (M ssbauer)对黔西南高砷煤中砷和铁的存在形式进行了研究。研究发现 ,高砷煤中的砷主要以高价砷的形式存在 ,也有少量以As2 O3 、砷黄铁矿、砷硫化物的形式存在。除 1个样品中的铁全部以顺磁性针铁矿或超顺磁性的针铁矿的形式存在外 ,其它样品中的Fe主要是黄铁矿中的Fe,约占全铁的 6 0 %~ 91% ;其次是黄铁钾矾中的Fe ,约占全铁的 9%~ 4 0 %。 | 丁振华 郑宝山 R B Finkelmam H E Belkin 胡天斗 刘涛 | 2003 | 高校地质学报2003,9,2: | 4 |
| 4 | 煤中发现镉矿物显示文摘 | 丁振华 Finkelmam R B Belkin H E 郑宝山 金志升 周运书 周代兴 | 2002 | 地质地球化学2002,30,2: | 4 |
| 5 | High-sensitivity infrared vibrational nanospectroscopy in water显示文摘Mid-infrared vibrational spectroscopy is a universal label-free tool for identifying molecular compounds in chemical and biological samples on the basis of their‘fingerprint’vibrational absorption lines.Vibrational spectroscopy with nanometer spatial resolution can reveal the chemical composition of samples at the nanoscale,and several scanning-probe techniques have been developed to address this need1–22.It is also highly desirable to study biological and chemical samples in their native aqueous environments rather than in air.In aqueous environments,however,the sensitivity of the current vibrational nanospectroscopy techniques deteriorates dramatically7,23.Here,we report the first mid-infrared nanospectroscopy technique that retains nanoscale sensitivity and spatial resolution when the sample and the scanning probe are completely immersed in water.This method overcomes challenges including water absorption and scattering and the mechanical damping of cantilever vibrations.We further demonstrate spectroscopy and imaging of 20-to 50-nmthick polymer samples with a 25-nm spatial resolution in the biologically relevant Amide I and II spectral regions. | Mingzhou Jin Feng Lu Mikhail A Belkin | 2017 | Light(Science & Applications)2017,6,1: | 3 |
| 6 | The impact of patient age and aortic size on the results of aortobifemoral bypass grafting 1 1 Competition of interest: none. Published online Mar 6, 2003显示文摘 | Amy B Reed Michael S Conte Magruder C Donaldson John A Mannick Anthony D Whittemore Michael Belkin | 2003 | Journal of Vascular Surgery2003,,: | 2 |
| 7 | Laplacian eigenmaps for dimensionality reduction and data representation显示文摘 | Belkin M Niyogi P | | 0,,06: | 2 |
| 8 | Abeliovich a denitrification in laboratory sandy columms: Carbon regime, gas accumulation and hydraulic prodraulic properties显示文摘 | Soares M I M Braester C Belkin S | 1991 | Water Research1991,25,3: | 2 |
| 9 | A faceted approach to conceptualizing tasks in information seeking显示文摘 | Yuelin Li Nicholas J. Belkin | 2008 | Information Processing and Management2008,,6: | 2 |
| 10 | 煤中发现含硫、锌、汞矿物显示文摘利用电子探针、扫描电子显微镜和X光能谱在黔西南高砷煤中发现了由硫、锌、汞组成的矿物 ,该矿物可能为硫锌汞矿 ,它的发现对研究煤中汞的赋存状态、有害微量元素在煤中的成因具有积极的意义。 | 丁振华 郑宝山 Finkelmam R B Belkin H E | 2003 | 地质地球化学2003,31,2: | 2 |
| 11 | Laplacian eigenmaps for dimensionality reduction and data representation显示文摘 | Belkin M Niyogi P | 2003 | Neural Computation2003,15,6: | 1 |
| 12 | Relationships between Categories of Relevance Criteria and Stage in Task Completion显示文摘 | Taylor A R Cool C Belkin N J | 2007 | Information Processing and Management2007,43,4: | 1 |
| 13 | Understanding judgment of information quality and cognitive authority in WWW显示文摘 | Rieh S Y Belkin N J | 1998 | Journal of the American Society for Information Science1998,35,: | 1 |
| 14 | Laplacian Eigenmaps for Dimensionality Reduction and Data Representation 显示文摘 | BELKIN M NIYOGI P | 2003 | Neural Computation2003,15,6: | 1 |
| 15 | Laplacian eigenmaps for dimensionality reduction and data representation 显示文摘 | Belkin M Niyogi P | 2003 | Neural Computation2003,15,: | 1 |
| 16 | Biological denitrification of drinking water using newspaper 显示文摘 | Volokita M Belkin S Abeliovich A | 1996 | Water Research1996,30,4: | 1 |
| 17 | Laplacian eigenmaps for dimensionality reduction and data representation显示文摘 | BELKIN M NIYOGI P | 2003 | Neural Comp2003,15,6: | 1 |
| 18 | Information concepts for information science 显示文摘 | Belkin N J | 1978 | J Doc1978,34,1: | 1 |
| 19 | Perinatal outcome and complications of pregnancy in women with immune thrombocytopenia purpura显示文摘 | Belkin A Levy A Sheiner E | 2009 | Journal of Maternal-Fetal & Neonatal Medicine2009,22,11: | 1 |
| 20 | Laplacian eigenmaps for dimension- ality reduction and data representation显示文摘 | Belkin M Niyogi P | 2003 | Ncural Compu- tation2003,15,6: | 1 |