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journal of Life sciences 2014年第8期8卷 660-667页

作者： AI-Mohammed Maher H. s. EI-Kaaby Ekhlas A. j AI-Anny jenan A. Musa Abdul-kadhim j. Department of Genetic Engineering Biotechnology Center Baghdad 00964 Iraq Ministry of Agriculture Kufa 00964 Iraq

The effect ofmutagenic NaN3 at concentration （0.0, 2.0 and 4.0 mM） and salinity stress at the levels （6.5, 8.5, 10.5 and 12 ds/m） on the seeds germination, callus induction and plant regeneration fi＇om stressed callus of different borage explants were investigated. The results showed that （4.0 mM） NaN3 with 4 h incubation period increased germination percentage reached 83.3% rate. Moreover the responses of different explants for callus induction in the presence of different combinations from auxin and cytokines were varied and a combination of（2 mg/L ）from each of ba and IAA gave high callus fresh weight reached （229.6, 218.0, 237.3） for （shoot tips, cotyledon leaves and hypocotyls） respectively .Concerning to the effect of salinity stress on callus induction and plant regeneration a high reduction in callus flesh weight and plant regeneration were observed at the high level of NaCl.

关键词： Borage callus salinity in vitro.

“互联网+”背景下全要素网络及产业集群生成机理与模式

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科技进步与对策 2016年第21期33卷 58-65页

作者：姜睿清喻登科薄秋实南昌大学管理学院江西南昌330031

要素共享与能力协同是产业集群竞争优势的来源,对产业结构高端化具有重要意义。作为要素存储载体和流转媒介,全要素网络能够实现资源汇集与整合、促进资源优化配置与利用,有利于能力协同。互联网技术的广泛应用为全要素网络理论的产业... 详细信息

要素共享与能力协同是产业集群竞争优势的来源,对产业结构高端化具有重要意义。作为要素存储载体和流转媒介,全要素网络能够实现资源汇集与整合、促进资源优化配置与利用,有利于能力协同。互联网技术的广泛应用为全要素网络理论的产业实现提供了环境条件。在"互联网+"背景下,产业集群能够寻求更大范围、更具深度、更有效率的要素共享模式,这将颠覆传统产业集群业态,进而塑造出一种全新的产业集群生存形态。由此,在分析"互联网+"环境全要素网络运行机制的基础上,探讨全要素网络维力作用下的产业集群生成机理,明晰产业集群生成的3种模式,即供给导向型、需求导向型、供给-需求融合型,可为"互联网+"背景下政府进行传统产业集群转型升级与新兴产业集群培育提供政策指引。

关键词： “互联网:全要素网络产业集群生成机理模式

HIGH TEMPERATURE CRACK PROPAGATION AND FRACTURE OF sUPERALLOYs

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Acta Metallurgica sinica(English Letters) 1999年第1期12卷 54-61页

作者： X.s. Xie, Z.C. Xu and j.X. Dong High Temperature Materials Research Laboratory,University of science and Technology Beijing,Beijing 100083, China

High temperature crack propagation and fracture behavior of disks produced by six superalloys have been studied. Crack propagation rates were determined at 650 creep, fatigue and creep/fatigue interaction conditions. The crack propagation rate is raised with increasing strength of superalloy and is also increased with the dwelling time at maximum stress level of cyclic creep test condition. Crack propagation behavior is closely related to high temperature ductility (such as creep strain and stress rupture elongation). Ductility improvement can increase crack propagation resistance by means of softening heat treatment, controlling grain boundary precipitate and microalloying treatment (such as Mg addition to superalloy). \=

关键词： crack propagation fracture superalloy magnesium

Characterization of the proto-Philippine sea Plate:Evidence from the emplaced oceanic lithospheric fragments along eastern Philippines

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Geoscience Frontiers 2020年第1期11卷 3-21页

作者： Carla B.Dimalanta Decibel V.Faustino-Eslava jillian Aira s.Gabo-Ratio Edanjarlo j.Marquez jenielyn T.Padrones Betchaida D.Payot Karlo L.Queano Noelynna T.Ramos Graciano P.Yumul jr. Rushurgent Working Group National Institute of Geological SciencesCollege of ScienceUniversity of the PhilippinesDilimanQuezon CityPhilippines school of Environmental science and Management University of the PhilippinesLos BañosLagunaPhilippines Department of Physical sciences and Mathematics University of the Philippines-ManilaPadre FauraManilaPhilippines Institute of Renewable Natural Resources University of the PhilippinesLos BañosLagunaPhilippines Department of Environmental science Ateneo de Manila UniversityQuezon CityPhilippines Itogon-suyoc Resources Inc. OrtigasPasig CityPhilippines Apex Mining Company Inc. OrtigasPasig CityPhilippines

The proto-Philippine sea Plate(pPsP)has been proposed by several authors to account for the origin of the Mesozoic supra-subduction ophiolites along the Philippine *** this paper,a comprehensive review of the ophiolites in the eastern portion of the Philippines is *** data on the geology,ages and geochemical signatures of the oceanic lithospheric fragments in Luzon(Isabela,Lagonoy in Camarines Norte,and Rapu-Rapu island),Central Philippines(samar,Tacloban,Malitbog and southeast Bohol),and eastern Mindanao(Dinagat and Pujada)are *** of the Halmahera Ophiolite to the south of the Philippines are also reviewed for *** all of the crust-mantle sequences preserved along the eastern Philippines share Early to Late Cretaceous *** geochemical signatures of mantle and crustal sections reflect both mid-oceanic ridge and suprasubduction *** paleomagnetic information is currently limited to the samar Ophiolite,results indicate a near-equatorial Mesozoic supra-subduction zone *** general,correlation of the crust-mantle sequences along the eastern edge of the Philippines reveal that they likely are fragments of the Mesozoic pPsP.

关键词： Eastern Philippines Ophiolites Proto-Philippine sea Plate

西藏巴松错浮游植物功能群垂直分布特征及其与环境因子的关系

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湖泊科学 2021年第1期33卷 86-101页

作者：安瑞志潘成梅塔巴拉珍杨欣兰巴桑西藏大学理学院青藏高原湿地与流域生态实验室拉萨850000 西藏自治区昌都市卡若区约巴乡乃通村教学点昌都854000 西藏农牧科学院水产科学研究所拉萨850032

为了解青藏高原湖泊浮游植物功能群垂直分布特征与环境因子的关系,本文选取西藏东南部最大的高山冰川堰塞湖之一的巴松错为研究对象,于2017年11月(枯水期)和2018年9月(丰水期)在湖心利用挂锤式深水采样器进行浮游植物垂直分层采样,共设... 详细信息

为了解青藏高原湖泊浮游植物功能群垂直分布特征与环境因子的关系,本文选取西藏东南部最大的高山冰川堰塞湖之一的巴松错为研究对象,于2017年11月(枯水期)和2018年9月(丰水期)在湖心利用挂锤式深水采样器进行浮游植物垂直分层采样,共设置7个断面,采集水样84个.应用浮游植物功能群、相关性分析、冗余分析(RDA)等方法,对巴松错浮游植物功能群垂直分布特征及其与环境因子的关系进行了研究.结果表明:1)巴松错水体稳定性强,水温有明显的分层现象,枯水期在30~60 m处形成温跃层,丰水期在1~15 m和30~60 m处形成双温跃层;2)巴松错浮游植物群落共鉴定7门76属242种,物种组成均表现为硅藻蓝藻绿藻型结构;3)根据浮游植物功能群分类方法,可划分为25个功能群,分别为A、B、C、D、E、F、G、H1、H2、j、L M、L O、M、MP、N、P、s1、s2、T、W1、W2、X1、X2、X3和Y,优势功能群从枯水期的MP、D、L O、P转变为丰水期的D、F、L O、MP、N、P,其中MP功能群为巴松错浮游植物群落绝对优势群;4)通过RDA表明,不同水情期浮游植物功能群垂直分布特征受环境因子影响差异较明显,整体上,pH、总氮和氨氮浓度是影响浮游植物功能群分布格局的主要环境因子.

关键词：巴松措浮游植物功能群环境因子垂直分布

高温超导薄膜(Y0.6Ho0.4)ba2Cu3O7-δ/sAT/MgO的制备

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低温物理学报 1999年第3期21卷 67-70页

作者：秦水介,付兴华贵州大学物理系

用脉冲激光沉积法先在ＭｇＯ衬底上制备一层Ｓｒ２（ＡｌＴａ）Ｏ６薄膜作为过渡层，再制备（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ超导薄膜．新超导薄膜的零电阻温度Ｔｃ０为８９Ｋ，临界电流密度Ｊｃ为２．３×１０６Ａ／ｃｍ２... 详细信息

用脉冲激光沉积法先在ＭｇＯ衬底上制备一层Ｓｒ２（ＡｌＴａ）Ｏ６薄膜作为过渡层，再制备（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ超导薄膜．新超导薄膜的零电阻温度Ｔｃ０为８９Ｋ，临界电流密度Ｊｃ为２．３×１０６Ａ／ｃｍ２（７７Ｋ），用Ｘ射线衍射仪及扫描电子显微镜分析了薄膜特性．结果表明，新超导薄膜（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ可成功地生长在价廉的基片ＭｇＯ上．

关键词：临界电流密度超导性能 ba2Cu3O Ho sAT/MgO 过渡层地层零电阻温度

脉冲激光沉积技术制备Li_2O-V_2O_5-siO_2薄膜

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材料热处理学报 2005年第6期26卷 16-19页

作者：赵胜利文九巴杨继斌秦启宗河南科技大学材料学院河南洛阳471003 水利部小浪底发电厂河南济源454681 复旦大学激光化学研究所上海200433

采用355nm脉冲激光沉积(PLD)技术,以Li6.16V0.61si0.39O5.36为靶材制备Li2O-V2O5-siO2薄膜,考察了反应气氛压强、激光能量密度、基片温度等对薄膜结构和性质的影响。结果表明,随着基片温度升高及激光能量密度增大Li2O-V2O5-siO2薄膜更致... 详细信息

采用355nm脉冲激光沉积(PLD)技术,以Li6.16V0.61si0.39O5.36为靶材制备Li2O-V2O5-siO2薄膜,考察了反应气氛压强、激光能量密度、基片温度等对薄膜结构和性质的影响。结果表明,随着基片温度升高及激光能量密度增大Li2O-V2O5-siO2薄膜更致密,且室温离子电导率随之增大。在O2压强6.7Pa、激光能量密度12j/cm2和基片温度300℃条件下制备了室温离子电导率为4×10-7s/cm、离子迁移数接近1.0(tion>99.99%)、厚度均匀、无针孔和裂缝的非晶态Li2O-V2O5-siO2薄膜。

关键词：电解质 Li2O-V2O5-siO2 薄膜锂电池 PLD

Interface networks in models of competing species

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International journal of Modeling, simulation, and scientific Computing 2018年第5期9卷 195-209页

作者： T.A.Pereira j.Menezes L.Losano Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Science Park 9041098 XH AmsterdamThe Netherlands Departamento de F´ısica Te´orica e Experimental Universidade Federal do Rio Grande do Norte 59078-970 RNBrazil Escola de Ciˆencias e Tecnologia Universidade Federal do Rio Grande do Norte Caixa Postal 1524 59072-970NatalRNBrazil Universidade Federal da Para´ıba 58051-970 jo˜ao Pessoa PB BrazilCaixa Postal 152459072-970NatalRNBrazil

We study a subclass of the May–Leonard stochastic model with an arbitrary,even number of species,leading to the rise of two competing partnerships where individuals are *** carrying out a series of accurate numerical stochastic simulations,we show that alliances compete each other forming spatial domains bounded by interfaces of empty *** solve numerically the mean field equations associated with the stochastic model in one and two spatial *** demonstrate that the stationary interface profile presents topological properties which are related to the asymptotic spatial distribution of species of enemy alliances far away from the interface ***,we introduce a theoretical approach to model the formation of stable interfaces using spontaneous breaking of a discrete *** show that all the results provided by the soliton topological model,presented here for the very first time,are in agreement with the stochastic simulations and may be used as a tool for understanding the complex biodiversity in nature.

关键词： Population dynamics numerical simulations topological defects.

Disposal of Arsenic Filter sludge in soil and its Consequences

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journal of Environmental science and Engineering 2011年第2期5卷 165-176页

作者： s.M. Imamul Huq L. Nesal, M.T.A. Chowdhury j.C. joardar bangladesh-Australia Centre for Environmental Research （ba CER-DU） University of Dhaka Dhaka-1000 Bangladesh soil science Discipline Khulna University Khulna Bangladesh

Incubation, macrocosm and field studies were carried out to observe any increase in the concentration of arsenic （As） in soil and its subsequent uptake by plants due to disposal of As-filter sludge into soil from two different arsenic removal media. One of the media was iron based and the other was activated alumina.ba.ed. For the incubation study, sludge @ 1 ***^-1 and 0.5 *** from the two sources wer applied to soils and incubated for 180 days with five individual incubation periods viz., 15, 30, 60, 90 and 180 days. At the end of each incubation period the soils were extracted with 1M HCI. For the macrocosm study, a leafy vegetable-lpomoea aquatica L. and rice （Oryza sativa L.） were grown in pots treated with sludge @ 1 T·ha^-1 and 0.5 T·ha^-1 soils. For the field study, two leafy vegetables viz., red amaranthus （Amaranthus gangeticus L.） and Kalmi （Ipomoea aquatiea L.） were grown on soils treated with the sludge @ 1 ***^-1 in plots of 1 m^2 sizes. Arsenic was found to have increased under upland and lowland conditions that contributed to an increased accumulation of the element in the plants. The increase of As was found to be relatively higher under upland condition than under submerged condition. Arsenic accumulation in plants was found to be the highest in the roots followed by straw and grain. similar observation has been made under field condition too. Increased concentration of Fe an AI has also been observed which could be a new environmental hazard. The study reveals that the filters used for making As-safe drinking water cannot be safely disposed of to the soil, particularly to the agricultural soils.

关键词： Contamination disposal arsenic release upland condition lowland condition.

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我国对羟基苯甲酸的现状和发展趋势

精细与专用化学品 2003年第12期11卷 6-7页

作者： s.j.Chem. 甲醛/甲醇信息研究室

20 0 2年 ,我国共有 16家对羟基苯甲酸(PHba)生产企业 ,总生产能力为 1 7万t/a,产量6 0 0 0t,其中 2 /3用于出口。预计到 2 0 0 5年 ,我国PH ba生产能力为 1 0 3万t/a即可满足内需及出口。目前以苯酚为原料生产PHba的方法主要有两种 :... 详细信息

20 0 2年 ,我国共有 16家对羟基苯甲酸(PHba)生产企业 ,总生产能力为 1 7万t/a,产量6 0 0 0t,其中 2 /3用于出口。预计到 2 0 0 5年 ,我国PH ba生产能力为 1 0 3万t/a即可满足内需及出口。目前以苯酚为原料生产PHba的方法主要有两种 :柯尔伯·施密特合成法和莱默尔蒂曼合成法。PHba主要用于医药、化妆品及电子等行业 ,预计 2 0 0 5～ 2 0 10年 ,国内PHba需求量的年均增长率为 11 4 %。

关键词：中国对羟基苯甲酸发展趋势苯酚 LCP 生产能力生产企业产量