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中国陶瓷 2012年第1期48卷 28-31页

作者：沈振江陈燕江向平陈万平邴丽娜海南师范大学物理与电子工程学院海口571158 景德镇陶瓷学院材料科学与工程学院景德镇333000 武汉大学物理科学与技术学院武汉430072

研究了二氧化锡不同掺杂方式对钛酸钡介电性能的影响。采用固相法制备出掺杂比例为2mol%SnO2&BaO、2mol%SnO2和4mol%SnO2三组不同方式SnO2掺杂钛酸钡样品。结果表明,两种掺杂方式对钛酸钡的作用效果截然不同,SnO2-BaO共掺杂会以BaSnO3...

研究了二氧化锡不同掺杂方式对钛酸钡介电性能的影响。采用固相法制备出掺杂比例为2mol%SnO2&BaO、2mol%SnO2和4mol%SnO2三组不同方式SnO2掺杂钛酸钡样品。结果表明,两种掺杂方式对钛酸钡的作用效果截然不同,SnO2-BaO共掺杂会以BaSnO3.形式固溶入钛酸钡晶格,从而增大其介电常数,减小居里温度,同时介电损耗不会增大;SnO2单独掺杂则会引入Sn4+杂质离子,造成钛酸钡介电常数的减小以及介电损耗的增大,导致介电性能的劣化。

关键词：钛酸钡二氧化锡掺杂方式介电性能

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啤酒废水常温两相UASB厌氧处理

环境科学 1989年第6期10卷 39-43页

作者：严月根刘劲松胡纪萃清华大学环境工程系

本文研究了啤酒厂麦芽汁废水稀释液(COD约2000mg/L)常温(25℃)两相UASB工艺的运行性能。结果表明:该工艺具有很好的处理效果,负荷可达18kg COD/m^3.d,相应水力停留时间2.7h,溶解性COD去除率86％(以产甲烷相计),本文还对产酸相、产甲烷... 详细信息

本文研究了啤酒厂麦芽汁废水稀释液(COD约2000mg/L)常温(25℃)两相UASB工艺的运行性能。结果表明:该工艺具有很好的处理效果,负荷可达18kg COD/m^3.d,相应水力停留时间2.7h,溶解性COD去除率86％(以产甲烷相计),本文还对产酸相、产甲烷相的运行及颗粒污泥的性质作了系统研究。

关键词：两相厌氧处理啤酒废水处理 UASB

Using of Stable Isotopes to Assess Relationship between Surface/Groundwater in Sanjiang Plain

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Using of Stable Isotopes to Assess Relationship between Surf...

Catalyst assisted destruction of trichloro ethylene and toluene in corona discharges

寒区冰情与冻土水文效应——第4届“寒区水资源及其可持续利用”学术研讨会

作者： Bing ZHANG~(1,2),Xianfang SONG~1,Yinghua ZHANG~1,Dongmei HAN~1, Changyuan TANG~3.Ying MA~1 1 Key Laboratory of Water Cycle and Related Land Surface Process,Institute of Geographic sciences and Natural Resources Research, Chinese Academy of sciences,100101,Beijing,China 2 Graduate university of Chinese Academy of sciences,100049,Beijing,China 3.department of environmental science & Landscape Architecture,Faculty of Horticulture,Chiba university,Japan

The Sanjiang plain is one of the grain production bases in northeast *** water and groundwater are the irrigation water resources in study *** enhance the water management,the relationship between surface water and groundwater was assessed by hydrogen and oxygen stable isotope method. The surface waters were sampled in the Songhua River,Heilong River,Wusuli River,Xingkai Lake and wetlands. Shallow and deep groundwater samples were collected from shallow and deep wells,*** values ofδD andδ18O of surface water and groundwater samples were sorted as:lake water>wetland water>spring>shallow groundwater>river water>deep *** most enriched water sample was Xingkai Lake according to the evaporation,while the most depleted was the deep groundwater at the confluence of Heilongjiang River and Wusuli *** local meteoric water line wasδD=7.3.*** rivers were mainly discharged by shallow *** contributions of shallow groundwater to Songhua River, Heilongjiang River and Wusuli River were 57%,70%and 73.,*** groundwater plays an important role in Sanjiang *** surface water combined with groundwater should be used as irrigation water.

关键词： Stable isotopes surface water groundwater the Sanjiang plain

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Journal of environmental sciences 2000年第1期12卷 9-13页

作者： Muhammad Arif Malik, JIANG Xuan\|zhen (department of Chemistry, university of Zhejiang, Hangzhou 3.0027, China) Foundation item: National Natural science Foundation of China (No. 29576261)

Destruction of trichloro ethylene (C 2HCl 3. by pulsed corona discharge reactor packed with alumina pellets and in absence of packing was investigated. Higher conversion of C 2HCl 3.was observed in presence of alumina than in absence of packing. Furthermore CO/CO 2 ratio in the by products was found to shift in favor of CO 2 by alumina compared with absence of packing. Influence of catalyst porosity on C 2HCl 3.destruction and on by product ozone generation during the processing was also studied. Both alumina Ⅰ and alumina Ⅱ show similar improvement in C 2HCl 3.destruction. However, more important observation was that alumina Ⅰ produces higher by product ozone, while, alumina Ⅱ produces lower by product ozone, than in the case of no packing. The catalyst porosity effect was also investigated for destruction of toluene and was found to be similar. Intermediates of C 2HCl 3.destruction, as identified by GC MS, were COCl 2, CH 2Cl 2CHCl 3. CCl 4 and C 2HCl 5. In presence of alumina the amount of these intermediates was much reduced, indicating the catalytic function of alumina.

关键词： corona discharges plasma trichloro ethylene toluene alumina CLC number: X701 Document code: A

净化H_2S气体的CoSPc改性炭的性能研究

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武汉理工大学学报 2010年第8期32卷 97-101页

作者：师雁宁平王学谦蒋明昆明理工大学环境科学与工程学院昆明650093

以工业4号活性炭为载体,制备了磺化酞菁钴(CoSPc)改性活性炭,考察了改性活性炭制备工艺条件对净化模拟电石炉尾气中H2S性能的影响;对空白活性炭、改性炭吸附前后进行N2-BET和SEM表征分析。结果表明,H2S的净化效果随NaOH溶液浓度的增加... 详细信息

以工业4号活性炭为载体,制备了磺化酞菁钴(CoSPc)改性活性炭,考察了改性活性炭制备工艺条件对净化模拟电石炉尾气中H2S性能的影响;对空白活性炭、改性炭吸附前后进行N2-BET和SEM表征分析。结果表明,H2S的净化效果随NaOH溶液浓度的增加而增加;当NaOH溶液浓度一定时,NaOH/CoSPc的配比达到100μg/g、干燥温度13.℃、焙烧温度3.0℃为改性活性炭的最佳制备条件。结合N2-BET、SEM和EDS表征分析表明:改性后的活性炭S容量增加,净化效果明显。

关键词：磺化酞菁钴改性活性炭净化硫化氢表征

Generating Tetrahedral Volume Mesh from Surface Model

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Generating Tetrahedral Volume Mesh from Surface Model

半无限-和无限平方晶格的格林函数的关系及其应用

E-Business·Creative Design·Manufacturing——2009 IEEE 10th International Conference on Computer-Aided Industrial Design & Conceptual Design（CAID&CD’2009）

作者： 1Chun-Kai LI 2Ming-Yong PANG 1department of Educational Technology nanjing Normal university nanjing Jiangsu Province 210097 China 2department of Educational Technology nanjing Normal university nanjing Jiangsu Province 210097 China

In this paper,we present an efficient algorithm to generate tetrahedral meshes from surface *** algorithm first subdivides the axis-aligned bounding box of a surface model into a number of uniform tetrahedra,and then generates an initial indention mesh after removing all the tetrahedra outside the surface model by employing a signed distance function,defined by the vertices of the surface ***,our algorithm deals with the rough indention mesh according to the relationship between the surface model and the vertices of the tetrahedra bestriding the mesh ***,the algorithm uses Laplacian smoothing operator to improve the quality of the tetrahedral *** show that the volume mesh models created by our algorithm have smooth boundary and high-quality interior cells.

关键词： Tetrahedral Mesh Octree Red Green Refinement Signed Distance Function Laplacian Smoothing

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物理学报 1996年第8期45卷 1372-1379页

作者：徐之华范洪义中国科学技术大学材料科学与工程系合肥230026

利用半无限平方晶格的晶格格林函数的积分表达式(见:物理学报,44(1995),987)以及由此导出的它与无限平方晶格的晶格格林函数之间的内在关系式,计算了半无限平方晶格的局部态密度和表面具有单点对角杂质时定域态的存在条件.

关键词：半无限平方晶格格林函数

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广义主分量分析及人脸识别

计算机工程与应用 2003年第11期39卷 31-32,48页

作者：高秀梅杨静宇袁小华杨健南京理工大学计算机科学系南京210094

传统的主分量分析和Fisher线性鉴别分析在处理图像识别问题时都是基于图像向量的。该文提出了一种直接基于图像矩阵的主分量分析方法,它的突出优点是大大加快了特征抽取的速度。在ORL标准人脸库上的试验结果表明,该文所提出的方法不仅... 详细信息

传统的主分量分析和Fisher线性鉴别分析在处理图像识别问题时都是基于图像向量的。该文提出了一种直接基于图像矩阵的主分量分析方法,它的突出优点是大大加快了特征抽取的速度。在ORL标准人脸库上的试验结果表明,该文所提出的方法不仅在识别性能上优于传统的主分量分析方法和Fisher线性鉴别分析方法,而且特征抽取的速度得到了很大的提高。

关键词：广义主分量分析主分量分析线性鉴别分析图像特征抽取人脸识别

一个基于XML的多Agent网络管理原型系统

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计算机工程 2002年第5期28卷 33-34,105页

作者：沈俊顾冠群罗军舟东南大学计算机科学与工程系教育部计算机网络和信息集成重点实验室南京210096

Network management has widely adopted multi-agent architecture, and AGIMA is one of the successful prototypes that have developed mobile code facilities and group management functions. Taking consideration on the requirements of exchange and sharing of network management information between agents, the network management information described by next generation structure of management information can be represented as knowledge by XML-based resource description framework. These efforts need integration of some newer toolkit software and become foundation for introduction of network management intelligence into agents.

关键词：计算机网络多Agent系统 XML 网络管理原型系统