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Organic carbon budget in shrimp polyculture enclosure ecosystems

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Acta Oceanologica Sinica 2000年第1期19卷 99-108页

作者： Liu Guocai Li Deshang Dong Shuanglin Chen Zhaobo lu Jing X(1. Ocean University of Qingdao, Qingdao 266003, China) Department of Biology East China Normal University Shanghai China Ocean University of Qingdao Qingdao 266003 China

The organic carbon budget in shrimp polyculture ecosystems was studied with five experimental enclosures. The results showed that: (l ) the total Organic carbon income of the ecosystems varied from 4 847. 46 to 6 1.4. 67 g, averaged (5 646. 94 t 551.09) g, the average ratio among its components, i. e., (phytoplankton production ): (periphyte production ): (feed casted) was 0. 73: 0. 1.: 0. 1.; (2) the total output of organic carbon varied from 3 31.. 28 to 3 974. 79 g, averaged (3 644. 21. 281. 44) g, the average ratio among its components, i. e., (plankton community respiration): (periphyton respiration): (benthic community): (culture animal production): (culture animal respiration) was 0. 53: 0. 1.: 0. 1.: 0. 04:0. 09; (3) the organic carbon accumulation varied from 1.383. 45 to 2 707. 31.g, averaged (2 002. 73 546. 76) g, which was 26% --44 % of the total organic carbon income; the sequence of organic carbon accumulation in the ecosystems of different polyculture types was Y5 (Penaeus chinensis -- Argopecten irradians) > Y7 (P. chinensis -- Taiwan red tilapia) > Y4 (P. chinensis ) > T5 (P. chinensis -- Taiwan red tilapia -- Sinonovacula constricta ) > Y6 (P. chinensis S. constricta ); (4) the average conversion rate of organic carbon income to P. chinensis was (l. 77 0. 62) % (Y6>T5 > Y4 >YS > Y7), and that to total culture animals was (2. 1. 0. 79) % (T5 >Y6 > Y5 > Y4 > Y7).

关键词： Shrimp polyculture organic carbon budget enclosure experiment

The geological feature, geochemistry and origin of Jinya gold deposit in Fengshan, Guangxi

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Chinese Science Bulletin 1999年第S2期44卷 168-169页

作者： ZHOU Jiyuan~1. CUI Bingfang~1.and lu Yan~2 1. Nanjing Institute of Geology and Mineral Resources, Nanjing 21.01., China 2. Chengdu Institute of Technology, Chengdu 61.059, China Nanjing Institute of Geology and Mineral Resources Nanjing 210016 China Chengdu Institute of Technology Chengdu 610059 China

1.Geological feature of deposit The Jinya gold deposit is a fine disseminated gold mine. It occurs in sandstone and mudstone ofMiddle-Triassic Baifeng Formation, which is located at the margin of Late Paleozoic carbonate platform. Itwas controlled by the fracture zone, cleavage zone and fissure zone. The gold deposit has 1. orebodies,which are displayed as beds, lens and veins. The dominating minerals with gold are pyrite and arsenopyrite. The gold mainly occurs as submicroscopic intergranular gold. Low-to-moderate temperature (1.0-305℃) wall-rock alterations are mainly silicification, pyritization and arsenopyrite, also includes realgarization, carbonation (calcite, dolomite), sericitization and argillation (kaolinite, pyrophyllite). It wasformed after undergoing the sedimentary diagenetic period, hydrothermal mineralization epoch (21. Ma)and supergene mineralization.

关键词： geological feature Jinya gold deposit Fengshan.

Polarity for a Class of Levy Processes

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Wuhan University Journal of Natural Sciences 2002年第4期7卷 394-398页

作者： Wu Chuan ju 1.2 , Liu lu qin 1.1. School of Mathematics and Statistics, Wuhan University, Wuhan 430072, Hubei, China 2. College of Urban Construction, Wuhan University of Science and Technology, Wuhan 430070, Hubei, China School of Mathematics and Statistics Wuhan University Wuhan Hubei China College of Urban Construction Wuhan University of Science and Technology Wuhan Hubei China

Polar set of Markov processes is an important concept in probabilistic potential theory, but it is not easy to judge the polarity of the sets. In this paper, we give some results which can be easily used to examine the polarity of the sets whenX t belongs to a special class of Levy processes. We also give a result about polar functions of symmetric stable processes.

关键词： Levy process subordinator (essentially) polar set polar function

Synthesis and Properties of Water-soluble CdSe/ZnS Nanocrystals with the Type-I Core/Shell Structure

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Journal of Wuhan University of Technology(Materials Science) 2008年第5期23卷 600-605页

作者：王德平 School of Material Science and Engineering Tongji University

The synthesis of CdSe/ZnS core/shell nanocrystals though aqueous phase using the coprecipitation method was reported. The influences of factors such as injection methods and dosages of precursors, reaction duration of water-bathing and the initial CdSe：ZnS molar ratio were discussed. In comparison to the CdSe plain core nanocrystals, the CdSe/ZnS core/shell nanocrystals show much brighter photoluminescence demonstrated by the photoluminescence spectra. The epitaxial growth of the core/shell structures was verified by TEM and XRD.

关键词： nanocrystals CdSe/ZnS core/shell synthesis of aqueous phase fluorescence

Floating Population Increase and Its Influence on the Urban Population Situation:A Case Study in Beijing

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Chinese Journal of Population,Resources and Environment 2005年第1期3卷 27-35页

作者： Wu Peilin 1.2 & lu Qi 2 1. Shandong University of Technology, Zibo Shandong 255049, China 2. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 1.01.1. China Shandong University of Technology Zibo Shandong 255049 China Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China

Floating population is a special population group in China resulting from the implementation of household registration system. This paper uses a set of floating population survey data, population censuses data and statistical data to analyze the increase and influence of floating population on the urban population situations in Beijing. It is found that Beijing has experienced a rapid increase of floating population since the 1.90s and that the increase of this group has become the key factor of the current population expansion in the city. Its distribution in the urban regions intensified and extended the suburbanization process of the capital. In addition, the population structures of sex, age, education and employment in Beijing have changed to some extent due to the influx of floating population.

关键词： Floating population Household registration system (Hukou) Population expansion Suburbanization Population structure Beijing

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面向高通量应用的众核处理器任务调度

清华大学学报（自然科学版） 2017年第3期57卷 244-249页

作者：徐远超杨璐首都师范大学信息工程学院北京100048 中国科学院计算技术研究所计算机体系结构国家重点实验室北京100190

具有高通量特征的大数据应用已成为目前数据中心的主流应用,这些应用在传统处理器平台上的运行效率不高,原因之一是任务调度的低效。针对高通量应用的一些典型特征以及现有任务窃取算法的不足,该文提出一种程序行为和环境感知的任务调... 详细信息

具有高通量特征的大数据应用已成为目前数据中心的主流应用,这些应用在传统处理器平台上的运行效率不高,原因之一是任务调度的低效。针对高通量应用的一些典型特征以及现有任务窃取算法的不足,该文提出一种程序行为和环境感知的任务调度机制,通过软硬件结合实现了处理器核的分区管理和任务的分级调度,减小了不同应用之间因争用共享资源对性能产生的不利影响,同时利用线程相似度高的特点提高指令缓存的命中率,从而提升系统的整体吞吐率。初步的模拟评估表明:该算法在混合负载情况下性能明显优于现有算法的,在测试的混合负载中平均优于现有算法20%。

关键词：众核处理器大数据应用高通量任务调度

A sodium metasomatism process in Xiaoqingshan lode-copper deposit in Kangdian region, southwestern China

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Chinese Science Bulletin 1999年第S2期44卷 176-178页

作者： WANG Jiangzhen~1. ZHEN Minghua~2 and lu Yan~2 1. lnstitute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 2. Chengdu Institute of Technology, Chengdu 61.059, China Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Chengdu Institute of Technology Chengdu 610059 China

THE Kangdian region is a middle Proterozoic continental rift basin that extends between longitudes 1.1.30’and 1.3°20’. There are a series of sedimentary strata, named Xiaoqingshan Formation, Yinmin Forma- tion, and luoxue Formation. The strata were metamorphosed and deformed in Jinning tectonic event between approximately 850 and 750 Ma. There are many lode-copper deposits in the Kangdian region. Xiaoqingshan is a typical one among of them. The orebodies of the deposit occurs in veins and the hostrocks of the deposit are sericite-phyllite and sericite-slate. The deposit is characterized by large-scale pervasive sodium metasomatism （PSM）. It has been identified that albite replaced sericite and chlorite of the original rocks during the *** a result, the pelites were transformed into albitolite, which consists of albite totally. Mass balancecalculations show that the PSM process involved addition of large amount of Na2O and SiO2, and

关键词： sodium metasomatism copper deposit southwestern China.

Exsolution of ilmenite and Cr-Ti magnetite from olivine of garnet-wehrlite

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Science China Earth Sciences 2005年第9期48卷 1368-1376页

作者： LIU Xiangwen1.2, JIN Zhenmin1.3, QU Jing2 & WANG lu2 1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China 2. Graduate School of China University of Geosciences, Wuhan 430074, China 3. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan China Graduate School of China University of Geosciences Wuhan China Faculty of Earth Sciences China University of Geosciences Wuhan China

Exsolution of rod-like ilmenite (Ilm) and Cr-Ti magnetite (Mt) have been found in olivine of garnet-wehrlite from the core of Chinese Continental Sciences Drilling (CCSD). Their composition, morphology, crystal structure and their topotaxies with host olivine have been studied in detail by the transmission electron microscopy (TEM) and electron probe microanaly- sis (EPMA) technique. It shows that rod-like Ilm exsolution reported in this paper has similar characteristic with that of Alpe Arami olivine, while Cr-Ti magnetite exsolution mentioned in this paper has large discrepancy with chromite exsolution in Alpe Arami olivine. These observations suggest that both of the exsolutions found in this paper should be solid solution phases in β-olivine at their first period, then experiencing decomposition of solid solution and therefore forming Ilm and Cr-Ti magnetite exsolution with the pressure decreasing. So, this garnet-wehrlite perhaps had been ever located in mantle transition zone with a minimum depth of 300 km.

关键词： garnet-wehrlite, ilmenite, magnetite, exsolution, CCSD.

Mild-slope equation for water waves propagating over non-uniform currents and uneven bottoms

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Acta Oceanologica Sinica 2000年第3期19卷 23-31页

作者：黄虎丁平兴吕秀洪 State Key Laboratory of Estuarine East China Normal University Shanghai 200062 China

A time-dependent mild-slope equation for the extension of the classic mild-slope equation of Berkhoff is developed for the interactions of large ambient currents and waves propagating over an uneven bottom, using a Hamiltonian formulation for irrotational motions. The bottom topography consists of two components the slowly varying component which satisfies the mild-slope approximation, and the fast varying component with wavelengths on the order of the surface wavelength but amplitudes which scale as a small parameter describing the mild-slope condition. The theory is more widely applicable and contains as special cases the following famous mild-slope type equations: the classical mild-Slope equation, Kirby's extended mild-slope equation with current, and Dingemans's mild-slope equation for rippled bed. Finally, good agreement between the classic experimental data concerning Bragg reflection and the present numerical results is observed.

关键词： Mild-slope equation wave-current-uneven bottom interactions,Hamiltonian formulation for irrotational motions Bragg reflection