检索结果-南通市图书馆

生态科学 2012年第2期31卷 109-114页

作者：孙志伟段璐洋周静韵田斐安民段舜山暨南大学水生生物研究中心广东省高校水体富营养化与赤潮防治重点实验室广州510632 国家海洋局第一海洋研究所青岛266061 Environmental and Analytical Laboratories Faculty of ScienceE H Graham Centre for Agricultural Innovation(Industry & Investment NSW and Charles Sturt University)Charles Sturt University

通过测定藻细胞密度,研究了5种红树植物木榄、秋茄、海漆、海芒果、小花老鼠簕水提物对赤潮藻球形棕囊藻和赤潮异弯藻的化感抑制效应,探讨了高温处理对化感抑藻效应的影响。研究结果表明,红树植物干粉水提物和新鲜组织水提物对两种赤潮... 详细信息

通过测定藻细胞密度,研究了5种红树植物木榄、秋茄、海漆、海芒果、小花老鼠簕水提物对赤潮藻球形棕囊藻和赤潮异弯藻的化感抑制效应,探讨了高温处理对化感抑藻效应的影响。研究结果表明,红树植物干粉水提物和新鲜组织水提物对两种赤潮藻均显示出显著的化感抑制作用。第5 d,红树植物干粉水提物对2种赤潮藻的抑制效果依次为:海漆>秋茄>小花老鼠簕>木榄>海芒果。新鲜组织水提物抑藻效果最强的红树植物是木榄和秋茄。秋茄和海漆水提物中的抑藻化感物质对高温相对不稳定,木榄和小花老鼠簕水提物中的抑藻化感物质对高温相对比较稳定。

关键词：红树植物水提物赤潮藻化感作用

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

植物自毒物质剂量与效应的机理模型研究

引用

生态科学 2008年第4期27卷 193-196页

作者：陈小秋刘迎湖安民冯远娇陈实华南农业大学理学院广州510642 E.H.graham centre for Agricultural innovation(a collaborative alliance between Charles Sturt University and NSW Department of Primary Industries) 华南农业大学农学院广州510642

植物自毒现象在自然和农业生态系统中广泛存在。该研究针对植物自毒作用强弱与自毒物质浓度相关的低促高抑赫米斯(Hormesis)特性,在An-Johnson-Lovett Hormesis模型中引入生态限制因子米式(Mitscherlich)模型,建立了自毒物质作用的剂量... 详细信息

植物自毒现象在自然和农业生态系统中广泛存在。该研究针对植物自毒作用强弱与自毒物质浓度相关的低促高抑赫米斯(Hormesis)特性,在An-Johnson-Lovett Hormesis模型中引入生态限制因子米式(Mitscherlich)模型,建立了自毒物质作用的剂量/自毒效应规律的机理数学模型。模型的演示与文献的报道结果一致,用已经发表的多种植物的自毒研究数据进行检验显示很强的拟合效果,说明以生态限制因子为核心建立的自毒模型不仅从植物生长的生物生态学属性上进一步揭示了自毒作用随自毒物质浓度变化的效应规律,同时在应用上具普遍性,这为今后更深入地研究自毒作用提供了一理论平台。

关键词：自毒作用生态限制因子米式(Mitscherlich)模型 AnJohnsonLovett Hormesis模型低促高抑(赫米斯Hormesis)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Universal two-qubit quantum processing via large-scale silicon quantum photonics

Universal two-qubit quantum processing via large-scale silic...

引用

第十八届全国量子光学学术会议

作者：强晓刚 Xiaoqi Zhou Jianwei Wang Callum M.Wilkes Thomas Loke Sean O'Gara Laurent Kling graham Marshall Raffaele Santagati Timothy C.Ralph Jingbo.B.Wang Jeremy.L.O'Brien Mark.G.Thompson Jonathan.C.F.Matthews 国防科技大学 National innovation Institute of Defense Technology AMS Quantum Engineering Technology Labs H.H.Wills Physics Laboratory and Department of Electrical and Electronic EngineeringUniversity of Bristol School of Physics The University of Western Australia centre for Quantum Computation and Communication Technology Department of Mathematical and PhysicsThe University of Queensland

Quantum computing generates much interest for its potential ability to outperform classical computing at many tasks. Photons have been considered as a promising candidate for implementing quantum computation owing to their properties of long coherence time, ease of manipulation and light-speed transmission. The integrated quantum photonic platform is an engineering solution proposed for robust and exquisite control of photonic quantum information by allowing generation, manipulation and detection of photons on a single chip. Here we use integrated silicon photonics and the linear combination of quantum operators scheme to realise a fully programmable two-qubit quantum processor, which enables universal two-qubit quantum information processing in optics for the first time. The device is fabricated with readily available CMOS based processing and comprises more than 200 photonic components, including 4 nonlinear photon-sources, 4 filters, 82 beam splitters and 58 individually addressable phase shifters. It allows to generate entangled photons and to initialise, operate and analyze arbitrary two-qubit states and processes on chip. To demonstrate performance, we programmed the device to implement 98 different two-qubit unitary operations（with average quantum process fidelity of 93.2±4.5%）, a two-qubit quantum approximate optimization algorithm and efficient simulation of Szegedy directed quantum walks. All results presented require about 100,000 experiment configurations. The chip performs with high fidelity, it is inherently stable and repeatable under continuous operation and it can be reprogrammed at k Hz rate, showing an ideal platform for quantum information processing applications. This fosters further use of the linear combination architecture with silicon photonics for future photonic quantum processors.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Mobilizing Crop Biodiversity

引用

Molecular Plant 2020年第10期13卷 1341-1344页

作者： Susan McCouch Zahra Katy Navabi Michael Abberton Noelle L.Anglin Rosa Lia Barbieri Michael Baum Kirstin Bett Helen Booker Gerald L.Brown Glenn J.Bryan Luigi Cattivelli David Charest Kellye Eversole Marcelo Freitas Kioumars Ghamkhar Dario Grattipaglia Robert Henry Maria Cleria Valadares Inglis Tofazzal Islam Zakaria Kehel Paul J.Kersey graham J.King Stephen Kresovich Emily Marden Sean Mayes Marie Noelle Ndjiondjiop Henry T.Nguyen Samuel Rezende Paiva Roberto Papa Peter W.B.Phillips Awais Rasheed Christopher Richards Mathieu Flouard Maria Jose Amstalden Sampaio Uwe Scholz Paul D.Shaw Brad Sherman S.Evan Staton Nils Stein Jan Svensson Mark Tester Jose Francisco Montenegro Valls Rajeev Varshney Stephen Visscher Eric von Wettberg Robbie Waugh Peter Wenzl Loren H.Rieseberg Plant Breeding and Genetics School of Integrated Plant SciencesCornell UniversityIthacaNY14853USA DivSeek Global Institute for Food Security110 Gymnasium PlaceUniversity of SaskatchewanSaskatoonSKS7N 0W9Canada lnternational Institute of Tropical Agriculture(IITA) PMB 5320Oyo RdIbadanNigeria International Potato Center(CIP)1895 Avenida La Molina Lima Peru 12Lima 15023Peru Embrapa Genetic Resources and Biotechnology Parque Estacjao BiologicaFinal Av W5 NorteCaixa Postal 0237270770-917-Brasilia DFBrazil International Center for Agricultural Research in the Dry Areas(I CAR DA) Station Exp.INRA-Quich.Rue Hafiane Cherkaoui.Agdal.Rabat-Instituts10111RabatMorocco Department of Plant Sciences University of Saskatchewan51 Campus Dr.SaskatoonSK S7N 5A8Canada Department of Plant Agriculture University of GuelphRm 316Crop Science Bldg50 Stone Rd EGuelphON N1G 2W1Canada Genome Prairie 111 Research DriveSuite 101SaskatoonSKS7N 3R2Canada The James Hutt on Institute Errol RoadInvergowrieDundeeDD25DAUK CREA Research Centre for Genomics and Bioinformaticsvia San Protaso 302Fiorenzuola d'Arda29017Italy Genome British Columbia 400-575 West 8th AvenueVancouverBCV5Z 0C4Canada International Wheat Genome Sequencing Consortium 2841 NE Marywood CtLee's SummitMO.64086USA Forage Science Grasslands Research CentreAgResearchPalmerston North4410New Zealand Queensla nd Alliance for Agriculture and Food Inn ovation University of QueenslandBrisbaneQLD 4072Australia Institute of Biotechnology and Genetic Engineering(IBGE) Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Southern Cross University PO Box 157LismoreNSW 2480Australia Royal Botanic Gardens KewRichmondSurreyTW93AEUK Feed the Future innovation Lab for Crop Improvement 431 Weill HallCornell UniversityIthacaNY14853USA Department of Botany and Biodiversity Research centre University of British ColumbiaVancouverBC V6R 2A5Canada Crops For the Future(UK)CIC 76-80 Baddow Road ChelmsfordEs

Over the past 70 years,the world has witnessed extraordinary growth in crop productivity,enabled by a suite of technological advances,including higher yielding crop varieties,improved farm management,synthetic agrochemicals,and agricultural *** this"Green Revolution"intensified crop production,and is credited with reducing famine and malnutrition,its benefits were accompanied by several undesirable collateral effects(Pingali,2012).These include a narrowing of agricultural biodiversity,stemming from increased monoculture and greater reliance on a smaller number of crops and crop varieties for the majority of our *** reduction in diversity has created vulnerabilities to pest and disease epidemics,climate variation,and ultimately to human health(Harlan,1972).

关键词： intensified crops agricultural

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：