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Geochronology and geochemistry of the Hegenshan ophiolitic complex:Implications for late-stage tectonic evolution of the Inner Mongolia-Daxinganling Orogenic Belt,China

Geochronology and geochemistry of the Hegenshan ophiolitic c...

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中国科学院地质与地球物理研究所2.08学术年会

作者： Laicheng Miao~(a,*),Weiming Fan~a,Dunyi Liu~b,Fuqin Zhang~a,Yuruo Shi~b,Feng Guo~c a institute of Geology and Geophysics,chinese Academy of {2.,{3. 10002.,China b {3. SHRIMP Center,institute of Geology,chinese Academy of geological {2.,{3. 10003.,China c Guangzhou institute of Geochemistry,chinese Academy of {2.,Guangzhou 510640,China

The Hegenshan ophiolite in the Inner Mongolian-Daxinganling Orogenic Belt(IMDOB),northern China,consists of several discontinuous blocks composed dominantly of serpentinized ultramafic rocks with subordinate cumulate gabbros,mafic lavas and dikes, intruded by younger granodiorite *** ultramafic rocks are highly depleted,serpentinized harzburgites with minor dunite,characterized by relative enrichment in large ion lithophile elements(LILE,e.g.,Ba and Rb) and light rare earth elements(LREE).They are interpreted to be oceanic mantle that has undergone extensive melt extraction and variable degrees of *** cumulate rocks consist mainly of gabbro and troctolite with LREE-depleted chondrite-normalized REE patterns showing significant positive Eu *** are enriched in LILE,depleted in Nb,and have high positiveε(t)(+8 to +11),suggesting derivation from a subduction-modified N-MORB-like *** gabbros and mafic dikes have essentially the same age(2.5±15 and 2.8±9 Ma,respectively). The mafic dikes have flat to LREE-depleted,chondrite-normalized REE patterns,are depleted in Nb,enriched in LILE and have NMORB-type Nd isotopic signatures(ε(t)=+8.1 to +10).The mafic lavas,erupted at 2.3.1 Ma,can be divided into two groups;one composed of strongly deformed metabasalts similar in chemical and Nd-Sr isotopic compositions to the mafic dikes,and the other composed of undeformed and unmetamorphosed basalts with oceanic island basalt(OIB)-like trace element signatures and Nd isotopic *** granodiorite dikes,which were intruded at 2.4±4 Ma,have LREE-enriched,chondrite-normalized REE patterns with no Eu *** abnormally highε(t) values(+6.3.to +6.8) and low I(0.70412.to 0.70450) suggest formation from melts derived from thickened oceanic crust during or shortly after closure of the Paleo-Asian *** structure,lithology and geochemistry of the Hegenshan ophiolite suggest that it is a Cordilleran-type body formed in a supra-subduction

关键词： Ophiolite Geochronology Geochemistry Late Paleozoic Inner mongolia

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FORECASTING CHINA'S FOREIGN TRADE VOLUME WITH A KERNEL-BASED HYBRID ECONOMETRIC-AI ENSEMBLE LEARNING APPROACH

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Journal of Systems Science & Complexity 2008年第1期21卷 1-19页

作者： Lean YU Shouyang WANG Kin Keung LAI institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China. Department of Management sciences City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China.

Due to the complexity of economic system and the interactive effects between all kinds of economic variables and foreign trade, it is not easy to predict foreign trade volume. However, the difficulty in predicting foreign trade volume is usually attributed to the limitation of many conventional forecasting models. To improve the prediction performance, the study proposes a novel kernel-based ensemble learning approach hybridizing econometric models and artificial intelligence (AI) models to predict China's foreign trade volume. In the proposed approach, an important econometric model, the co-integration-based error correction vector auto-regression (EC-VAR) model is first used to capture the impacts of all kinds of economic variables on chinese foreign trade from a multivariate linear anal- ysis perspective. Then an artificial neural network (ANN) based EC-VAR model is used to capture the nonlinear effects of economic variables on foreign trade from the nonlinear viewpoint. Subsequently, for incorporating the effects of irregular events on foreign trade, the text mining and expert's judgmental adjustments are also integrated into the nonlinear ANN-based EC-VAR model. Finally, all kinds of economic variables, the outputs of linear and nonlinear EC-VAR models and judgmental adjustment model are used as input variables of a typical kernel-based support vector regression (SVR) for en- semble prediction purpose. For illustration, the proposed kernel-based ensemble learning methodology hybridizing econometric techniques and AI methods is applied to China's foreign trade volume predic- tion problem. Experimental results reveal that the hybrid econometric-AI ensemble learning approach can significantly improve the prediction performance over other linear and nonlinear models listed in this study.

关键词： Artificial neural networks error-correction vector auto-regression foreign trade prediction hybrid ensemble learning kernel-based method support vector regression.

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淡紫拟青霉在大豆根际的定殖及对根际微生物的影响

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微生物学通报 1998年第3期25卷 133-136页

作者：孙漫红刘杏忠中国农业科学院生物防治研究所北京100081

温室实验证明淡紫拟青霉M－14菌株发酵液对大豆种子包衣，无菌土中种植1周后有1／10的生防菌能够在大豆根际定殖，其中内根际（根表与根内）可检测到菌剂包衣量的1／1000．第2.时内根际菌量提高10倍以上，4周后有所下降。2.NaClO表面... 详细信息

温室实验证明淡紫拟青霉M－14菌株发酵液对大豆种子包衣，无菌土中种植1周后有1／10的生防菌能够在大豆根际定殖，其中内根际（根表与根内）可检测到菌剂包衣量的1／1000．第2.时内根际菌量提高10倍以上，4周后有所下降。2.NaClO表面消毒后，检测出植物根内也有少量淡紫拟青霉存在。大豆胞囊线虫感病土中，该菌3.后开始大量增殖。病土中引入菌剂，1周后根际其它各种微生物数量略有减少，真菌、细菌、放线菌分别减少16％、2.％和2.％，4周时均达到平衡，与对照一致。

关键词：大豆淡紫拟青霉根际定殖根际微生物

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CREEP BEHAVIORS OF Mg MICROALLOYED WROUGHT SUPERALLOYS

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Acta Metallurgica Sinica(English Letters) 1990年第3期3卷 208-212页

作者： MA Peili YUAN Ying ZHONG Zengyong Central Iron and Steel Research institute,Ministry of Metallurgical Industry,beijing,China MA Peili Senior Engineer,Lab.of Superalloy,Central Iron and Steel Research institute,Ministry of Metallurgical Industry,beijing 100081,China

By adding small amount of Mg to the wrought superalloys,the steady stage of creep,and es- pecially the tertiary stage of creep are ***,the steady creep rate is decreased within the range of low strain *** higher strain rates,however,the effect of Mg on creep rate *** may be attributed to the Mg dissolution in the matrix.A mechanism of the effects of Mg addition on creep behaviors is proposed.

关键词： Mg microalloying creep wrought superalloy activation energy of vacan-

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配对螺旋样纤维(PHF)-Tau与神经细胞的死亡

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生物化学与生物物理进展 2001年第4期28卷 441-443页

作者：聂春来视觉信息加工开放实验室

神经纤维缠结 (neurofibrillarytangles ,NFT)是老年性痴呆病的重要病理特征 ,人类神经tau分子聚集形成的配对螺旋样纤维 (pairedhelicalfilaments ,PHF)是NFT的主要成分 .最近研究表明 ,PHF与神经细胞的坏死和程序化死亡密切相关。

关键词：神经tau 氧自由基配对螺旋样纤维老年性痴呆病神经细胞死亡

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压敏-电容双功能多层器件

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四川大学学报（自然科学版） 2005年第S1期42卷 515-517页

作者：曾祥明张明赵根妹康雪雅中国科学院新疆理化技术研究所乌鲁木齐830011 成都宏明电子科大新材料有限公司成都610058

介绍了压敏-电容器双功能多层器件的结构原理、特征、用应等.利用多层压敏电阻器和多层陶瓷电容器复合制备了压敏-电容器双功能多层器件.压敏-电容器双功能器件应用试验结果证实,所研制的器件具有抑制静电放电与降低噪声的双重功能、大... 详细信息

介绍了压敏-电容器双功能多层器件的结构原理、特征、用应等.利用多层压敏电阻器和多层陶瓷电容器复合制备了压敏-电容器双功能多层器件.压敏-电容器双功能器件应用试验结果证实,所研制的器件具有抑制静电放电与降低噪声的双重功能、大容量、抗干扰等优点,可望在信息及家电行业获得广泛应用.

关键词：压敏-电容双功能多层器件性能应用

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某些类氖离子和类镍离子等离子体状态对应关系的研究

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物理学报 2003年第9期52卷 2200-2205页

作者：燕飞张杰鲁欣中国科学院物理研究所光物理重点实验室北京100080

利用一维拉格朗日流体动力学程序Med10 3.细研究了产生类镍Ag ,Cd ,In ,Sn,Sb离子和类氖Fe ,Co ,Ni,Cu,Zn离子的等离子体状态 .通过对电子温度、离子丰度、离子数密度等状态参量的分析比较 ,得到了这两类等离子体状态之间的对应关系 .... 详细信息

利用一维拉格朗日流体动力学程序Med10 3.细研究了产生类镍Ag ,Cd ,In ,Sn,Sb离子和类氖Fe ,Co ,Ni,Cu,Zn离子的等离子体状态 .通过对电子温度、离子丰度、离子数密度等状态参量的分析比较 ,得到了这两类等离子体状态之间的对应关系 .即类镍银的等离子体状态与类氖铁的相近 ,类镍镉的与类氖钴的相近 ,依次类推 .

关键词：类氖离子类镍离子等离子体状态对应关系 X射线激光一维拉格朗日流体动力学程序等离子体诊断

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Studies of distribution, release and environmental influences of Fushun oil shale and its self-combustion

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Acta Geochimica 2006年第S1期 38-39页

作者： Liping ZHANG, Rongshu ZENG institute of Geology and Geophysics, chinese Academy of {2., {3. 10002., China

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Preliminary Response of Soil Fauna to Simulated N Deposition in Three Typical Subtropical Forests

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Pedosphere 2006年第5期16卷 596-601页

作者： XU Guo-Liang MO Jiang-Ming ZHOU Guo-Yi FU Sheng-Lei institute of Ecology South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 （China） Graduate School of the chinese Academy of sciences Beijing 100039 （China）

A field-scale experiment arranged in a complete randomized block design with three N addition treatments including a control (no addition of N), a low N (5 g m-2.year-1), and a medium N (10 g m-2.year-1) was performed in each of the three typical forests, a pine (Pinus massoniana Lamb.) forest (PF), a pine-broadleaf mixed forest (MF) and a mature monsoon evergreen broadleaf forest (MEBF), of the Dinghushan Biosphere Reserve in subtropical China to study the response of soil fauna community to additions of N. Higher NH4+ and NO3. concentrations and a lower soil pH occurred in the medium N treatment of MEBF, whereas the NO3. concentration was the lowest in PF after the additions of N. The response of the density, group abundance and diversity index of soil fauna to addition of N varied with the forest type, and all these variables decreased with increasing N under MEBF but the trend was opposite under PF. The N treatments had no significant effects on these variables under MF. Compared with the control plots, the medium N treatment had significant negative effect on soil fauna under MEBF. The group abundance of soil fauna increased significantly with additions of higher N rates under PF. These results suggested that the response of soil fauna to N deposition varied with the forest type and N deposition rate, and soil N status is one of the important factors affecting the response of soil fauna to N deposition.

关键词： Dinghushan Biosphere Reserve N deposition soil fauna subtropical China

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The mutation analysis of ultrasonic acoustic emission in plant stem

The mutation analysis of ultrasonic acoustic emission in pla...

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2.11年全国压电和声波理论及器件应用研讨会

作者： Jian-xin WANG~(1,*) Mei-li SUI~2.Shi-feng YANG~3.Xian-wei GAO~1 1 Department of Electronic and Information Engineering,beijing Electronic Science and Technology {2.,beijing 100070,China 2.beijing Senior Expert Technology Center chinese Academy of sciences,beijing 100046,China 3.College of Electronic Information and Automation,Tianjin University of Science And Technology,Tianjin 3.02.2. China

＜正＞Produced by cohesion between water molecules or adhesion to the conduits wall,the plant cavitation is accompanied by the vessel walls vibration which is the indicator of the water *** ultrasonic acoustic emissi... 详细信息

关键词： ultrasonic acoustic emissions UAEs mutation model

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