检索结果-南通市图书馆

Effects of silicon addition on optical properties of mould flux with iron oxide and estimation of apparent thermal conductivity of flux

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research(International) 2019年第4期26卷 365-373页

作者： Rie Endo Yo Kan Takashi Watanabe Miyuki Hayashi Masahiro susa Department of Materials Science and Engineering Tokyo Institute of TechnologyTokyo 152-8552Japan Department of Metallurgy and Ceramics Science Tokyo Institute of TechnologyTokyo 152-8552Japan

Mould flux with high absorptivity had been obtained in the reduction process of mould flux by *** further utilisation of the mould flux with high absorptivity,the effect of silicon addition on the optical property has been *** synthesised mould flux powder with iron oxide was melted with the addition of silicon powder at 1703 K followed by quenching,thus forming a glassy *** 5-30-min reduction,the samples exhibited black opaque ***,the samples that were reduced for 45-60 min had a bluish grey *** iron-based particles dispersed in the samples were micrometre order in *** determine the effect of iron particles on the optical properties of the sample,extinction,scattering and absorption efficiencies were calculated according to Mie *** showed that both scattering on the iron particle and absorption by iron effectively increase the extinction efficiency in the mould ***,the silicon particle in the flux has large scattering *** black opaque colour is contributed by the existence of silicon and iron *** apparent thermal conductivity was calculated for the solid *** also indicated that the entire glassy mould flux would effectively work for mild cooling in a continuous casting process owing to high absorptivity and small thermal conductivity.

关键词： Mould flux Reduction Iron oxide Thermal conductivity Optical property

水稻质核互作雄性不育系的微效恢复基因定位和排除方法研究

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

杂交水稻 2010年第S1期25卷 276-281页

作者：李新奇袁隆平 susa. mccouch Department of Plant Breeding&Biometry Cornell UniversityIthacaNY14853USA 国家杂交水稻工程技术研究中心

以232个协青早A/B456///协青早A/B456∥B456植株组成的分离群体为材料,调查花粉可育率和自交结实率,并采用121个在染色体上分布比较均匀的SSR多态性标记进行QTL检测。发现22个SSR标记分别与10个花粉育性位点连锁,分布于第2,5,6,8,10,12... 详细信息

以232个协青早A/B456///协青早A/B456∥B456植株组成的分离群体为材料,调查花粉可育率和自交结实率,并采用121个在染色体上分布比较均匀的SSR多态性标记进行QTL检测。发现22个SSR标记分别与10个花粉育性位点连锁,分布于第2,5,6,8,10,12染色体上;28个标记分别与16个小穗育性位点连锁,分布于第1,2,4,5,6,8,10和11染色体上;13个标记同时与花粉育性和小穗育性连锁,小穗育性与花粉育性QTL差异是花粉可育度和自交结实率不平行性的遗传基础。各可育位点对花粉育性和小穗育性的提高效应比较小,为微效基因,但每个花粉育性位点的存在都可导致不育系败育不彻底。协青早A中发现1个花粉可育位点Pf 5-1,与分子标记Bm 55和Rm 13紧密连锁,进行分子标记辅助选择,可能排除协青早A的微效恢复基因(可育位点),达到完全不育。协青早A存在8个小穗育性位点,能够提高自交结实率,有助于杂种F1结实率的提高,有利于提高不育系的可恢复性。多数微效恢复基因显示为部分隐性或隐性,是水稻质核互作雄性不育系选育难的重要原因。采用不育系/拟用亲本∥保持系/拟用亲本的方式,观察杂种育性分离,可对拟用亲本的微效恢复基因有所了解,用保持系/部分保持系∥保持系的方式可提高微效恢复基因排除的效率。

关键词：水稻细胞质雄性不育微效恢复基因 SSR分子标记

基于反射率和透射率数据提出的连铸缓冷型保护渣的若干建议

在线全文

学校读者我要写书评

暂无评论

基于反射率和透射率数据提出的连铸缓冷型保护渣的若干建议

Experiments on Pulse Detonation Turbine Engine

作者： Masahiro susa.Atsushi Kushimoto Rie Endo Yoshinao Kobayashi Department of Metallurgy and Ceramics Science Tokyo Institute of Technology

使用分光光度计,将保护渣的表观反射率和透射率作为结晶度和铁氧化物浓度的函数进行测量。研究表明,连铸保护渣的结晶度可以提高表观反射率而降低表观透射率,同时,铁氧化物的加入可以降低结晶器保护渣的表观反射率和透射率,而使表观吸... 详细信息

使用分光光度计,将保护渣的表观反射率和透射率作为结晶度和铁氧化物浓度的函数进行测量。研究表明,连铸保护渣的结晶度可以提高表观反射率而降低表观透射率,同时,铁氧化物的加入可以降低结晶器保护渣的表观反射率和透射率,而使表观吸收率提高。在光学工艺模型的基础上应用测量的反射率和透射率数据,可以对连铸保护渣的辐射热传递特征进行评估。建议通过去除保护渣中的铁氧化物来降低辐射热传递,促进缓冷。

关键词：连铸保护渣结晶反射率辐射热传递缓冷

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

Experiments on Pulse Detonation Turbine Engine

水稻质核互作雄性不育系的微效恢复基因定位和排除方法研究

交流成果、总结经验、探讨问题、展望前景——第二届爆轰与爆震发动机研讨会

作者： T.Endo A.susa.A.Mitsunobu T.Takahashi Department of Mechanical Systems Engineering Hiroshima University 1-4-1 Kagamiyama

The performance of a water-cooled pulse detonation turbine engine(PDTE)was experimentally studied.A single-tube pulse detonation combustor(PDC)was operated at 60 Hz for 10 minutes using hydrogen and *** automotive turbocharger was driven by the PDC,and its compressor work was measured as the ***,we experimentally evaluated the isentropic efficiency of the turbocharger and the energy balance of the PDTE *** the turbine-drive performance,the isentropic efficiency of the turbocharger was about 0.6,which was almost in agreement with the theoretical value based on a preliminary measurement of the isentropic efficiency by using steady air *** the thermal efficiency,it depended strongly upon the degree of heat *** a result,it was about 9% when only the detonation tube was *** value was reasonable taking into account the theoretical thermal efficiency,the isentropic efficiency of the turbocharger,and the heat loss.

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

杂交水稻 2010年第2期25卷 53-58页

作者：李新奇 Xu Yun-bi Xiao Jin-hua 袁隆平 susa. Mc Couch Department of Plant Breeding & Biometry Comell University Ithaca NY14853 USA 国家杂交水稻工程技术研究中心湖南长沙410125

以232个协青早A/B456///协青早A/B456∥B456植株组成的分离群体为材料,调查花粉可育率和自交结实率,并采用121个在染色体上分布比较均匀的SSR多态性标记进行QTL检测。发现22个SSR标记分别与10个花粉育性位点连锁,分布于第2,5,6,8,10,12染色体上;28个标记分别与16个小穗育性位点连锁,分布于第1,2,4,5,6,8,10和11染色体上;13个标记同时与花粉育性和小穗育性连锁,小穗育性与花粉育性QTL差异是花粉可育度和自交结实率不平行性的遗传基础。各可育位点对花粉育性和小穗育性的提高效应比较小,为微效基因,但每个花粉育性位点的存在都可导致不育系败育不彻底。协青早A中发现1个花粉可育位点Pf5-1,与分子标记Bm55和Rm13紧密连锁,进行分子标记辅助选择,可能排除协青早A的微效恢复基因(可育位点),达到完全不育。协青早A存在8个小穗育性位点,能够提高自交结实率,有助于杂种F1结实率的提高,有利于提高不育系的可恢复性。多数微效恢复基因显示为部分隐性或隐性,是水稻质核互作雄性不育系选育难的重要原因。采用不育系/拟用亲本∥保持系/拟用亲本的方式,观察杂种育性分离,可对拟用亲本的微效恢复基因有所了解,用保持系/部分保持系∥保持系的方式可提高微效恢复基因排除的效率。

关键词：水稻细胞质雄性不育微效恢复基因 SSR分子标记

Mobilizing Crop Biodiversity

在线全文

学校读者我要写书评

暂无评论

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

作者： susa. 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

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

21所军队医院患者满意度调查

解放军医院管理杂志 2018年第7期25卷 604-608页

作者：李顺飞刘阳吴英超马素飒胡晏铭杨鹏高燕华解放军第150医院医务处洛阳471031 军委后勤保障部卫生局医疗处北京100842 空军军医大学卫生统计学教研室西安710032

目的调查军队综合医院患者满意度,对比不同调查方式、军地患者及不同类型医院的满意度差异。方法借助专用调查平台,采用邮寄函件或群发短信的方式对21所不同类型军队综合医院出院患者发送调查邀请,项目包括医疗质量、诊疗流程、后勤保... 详细信息

目的调查军队综合医院患者满意度,对比不同调查方式、军地患者及不同类型医院的满意度差异。方法借助专用调查平台,采用邮寄函件或群发短信的方式对21所不同类型军队综合医院出院患者发送调查邀请,项目包括医疗质量、诊疗流程、后勤保障等六个维度18项内容,采用Likert5级评分法。结果患者总体满意率为94.61%,其中军队患者95.86%,地方患者93.40%,军队高于地方(χ2=8.713,P<0.01);以短信方式进行调查的军队、地方患者满意度得分存在统计学差异(t=6.398,P<0.01),不同调查方式的同类人员满意度得分差异不显著;各类医院间满意率差异明显(χ2=23.912,P<0.01),由高到低依次是队属医院、教学医院、总医院、中心医院;整体来看,医疗流程、就诊环境和后勤保障与患者期望差距较大。结论患者对军队医院服务保障工作总体比较满意,军地患者略有差异,各类医院互有优劣,可通过改善服务质量、强化综合能力、完善考核措施来提升。

关键词：军队医院患者满意度调查

在线全文

学校读者我要写书评

暂无评论

四种综合评价方法在医院绩效分析中的应用

解放军医院管理杂志 2018年第10期25卷 905-908页

作者：李顺飞吴英超赵振华马素飒胡晏铭杨鹏王晓虹解放军第150医院医务处洛阳471031 空军军医大学卫生统计学教研室西安710032 陕西省妇幼保健院西安710061

目的对比不同分组条件下四种综合评价方法的医院绩效水平差异,探讨不同评价方法排序结果的相关性。方法引入组合评价法,分别用四种方法对师级、团级等全部样本医院进行分析,基于序次均值将医院绩效水平划分为一级、二级、三级,采用Spear... 详细信息

目的对比不同分组条件下四种综合评价方法的医院绩效水平差异,探讨不同评价方法排序结果的相关性。方法引入组合评价法,分别用四种方法对师级、团级等全部样本医院进行分析,基于序次均值将医院绩效水平划分为一级、二级、三级,采用Spearman秩相关分析对排序结果进行两两比较。结果不同分组情况下四种综合评价方法获得序次的一致性评价结果均显示,四种排序差别无统计学意义;两两比较结果提示,赋权方法对评价结果有一定影响;依据组合序次的医院绩效等级划分结果,SJ06、SJ08、SJ10、SJ07为一级,TJ02、TJ03、TJ04为三级,其他医院为二级。结论组合评价法可弱化单种评价方法对排序结果的影响,使各医院绩效水平排名趋向稳定。

关键词：综合评价方法绩效分析对比