检索结果-南通市图书馆

地球与环境 1975年第3期 21-23页

作者： e.j.Gallegos ,姜善春

关于格陵河贞岩中支链环状的饱和烃馏份的分析已经在文献中有许多报导。但是从格陵河页岩中分析芳族化合物的报导是很少的。本文通过色谱—质谱法第一次详细地分析格陵河页岩中单芳族馏份。

关键词：化合物单芳饱和烃馏份质谱计芳族链烷烃页岩碎屑岩苯基芳基

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

猪日粮中添加脂肪的研究

饲料广角 1991年第1期 18-20页

作者： j.e.Pettigrew 李文立

生长-肥育猪添加脂肪对生长-肥育猪的生产性能具有一定影响,平均日增重提高0.04kg(P<0.01)。添加脂肪还可降低日采食量(P<0.01),这意味着日采食养分(包括蛋白质和赖氮酸)的减少。在某些情况下,为维持这些养分日进食量相同,必须提高目粮... 详细信息

生长-肥育猪添加脂肪对生长-肥育猪的生产性能具有一定影响,平均日增重提高0.04kg(P<0.01)。添加脂肪还可降低日采食量(P<0.01),这意味着日采食养分(包括蛋白质和赖氮酸)的减少。在某些情况下,为维持这些养分日进食量相同,必须提高目粮中蛋白质或赖氨酸的浓度,但这种调整几乎不影响脂肪对生长速度的作用。添加脂肪最显著的作用是可提高饲料效率,但却降低胴体品质,背腰厚度平均增加0.17cm。

关键词：肥育猪日采食量胴体品质日增重饲料效率分日幼猪生产性能生长速度母猪妊娠

The Genetic Control of Tissue Growth in Rice under Water-limited Conditions

在线全文

学校读者我要写书评

暂无评论

The Genetic Control of Tissue Growth in Rice under Water-lim...

effect of Glutathione and Storage Time on Rheological Properties of Per-proofed Frozen Dough

第二届植物分子育种国际会议

作者： j.e.Cairns G.Dimayuga R.Mabesa R.Torres R.Serraj International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines

＜正＞Leaf expansion is one of the first responses and most sensitive processes to soil water deficit. This work is aiming at the analysis of leaf growth and development processes, and the identification of QTLs and g... 详细信息

关键词： Drought resistance Leaf elongation Phenotyping QTL Root traits

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

食品科学 2006年第10期27卷 202-209页

作者： j.Uriyapongson C L Goad P Rayas-Duarte Khon Kaen University Khon Kaen Thailand Department of Statistics Oklahoma State University Stillwater OK 74078 USA Department of Biochemistry and Molecular Biology Food and Agricultural Products Research Center OklahomaState University Stillwater OK 74078 USA

The effect of reduced glutathione (GSH) on fresh and pre-proofed frozen dough rheological properties were investigated using dynamic stress rheometry and small scale extensibility with the addition of three levels (80×10-6, 160× 10-6 and 240×10-6 GSH) and six storage times (0 and 1 day, 2, 4, 6 and 8 weeks). Three relaxation times (1, 13 and 26min) after loading the dough in the rheometer were used to determine storage (G’) and loss (G”) moduli. Correlations for G’ (r=0.678 and 0.622 at 0.05, and 10Hz, respectively) and G” (r=0.699, and 0.690 at 0.05, and 10Hz, respectively) were observed with the area under the extension curve at 26 min relaxation time. The addition of GSH to fresh dough reduced G’ (16.4% to 55.9%) and G” (13.7% to 52.2%). Freezing and frozen storage caused increase in G’ and G”. The addition of GSH reduced dough strength indicated by the reduction in maximum resistance to extension (Rmax) and the ratio of maximum resistance to extensibility (Rmax/e). The reduction in Rmax across all relaxation times ranged from 16.2% to 59.4%. An increase in dough extension (e) was observed with 240×10-6 GSH at all frozen storage and rest period times. Addition of GSH caused an increase of liquid phase (30.6% to 35.3%) in fresh dough and frozen dough (10.3% to 20.7%) after one day frozen storage. Negative correlations of water content in the solid phase with dough extensibility and area under the extensibility curve were found (r=-0.594 and-0.563, respectively, pests a loss of dough extensibility and strength as the water holding capacity of the dough components changes during frozen storage.

关键词： effect of Glutathione and Storage Time on Rheological Properties of Per-proofed Frozen Dough GSH

erratum to:Influence of metal support in-plane symmetry on the corrugation of hexagonal boron nitride and graphene monolayers

在线全文

学校读者我要写书评

暂无评论

Nano Research 2019年第5期12卷 1217-1218页

作者： Antonio j.Martinez-Galera j.se M.Gomez-Rodriguez Departamento de Fisica de la Materia Condensada Universidad Autonoma de MadridMadrid E-28049Spain Condensed Matter Physics Center(IFIMAC) Universidad Autonoma de MadridMadrid E-28049Spain Instituto Nicolas Cabrera Universidad Autonoma de MadridMadrid E-28049Spain

The writings of the text on the last line,left column on the 4^th page and the text on lines 8^th,10^th,11^th and 16^th in the 4^th paragraph,left column and on lines from 1st to 8^th in the 1st paragraph,right column on the 5^th page,and the text on line 4^th in the 1^st paragraph,left column on the 9^th page,and Fig.3 and its caption on the 5^th page in the original version of this article were unfortunately incorrect.

关键词： corrugation hexagonal boron nitride graphene monolayers

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

厄勒海峡铁路连接线用的电动车组

变流技术与电力牵引 2002年第2期 38-40页

作者： j.e.Bengtsson 丰淑春瑞典

丹麦和瑞典铁路共同为厄勒海峡铁路连接线订购了一种名为Contessa的新型3节式电动车组,并已于2000年夏投入了运营。这种电动车组有很高的加速度,最高速度达180km/h,因车组前端有灵活的联接系统,多个动车组单元可快速联挂运行。此外还具... 详细信息

丹麦和瑞典铁路共同为厄勒海峡铁路连接线订购了一种名为Contessa的新型3节式电动车组,并已于2000年夏投入了运营。这种电动车组有很高的加速度,最高速度达180km/h,因车组前端有灵活的联接系统,多个动车组单元可快速联挂运行。此外还具有能用于2种网压、2种信号系统、2种列车自动控制系统以及低地板等特点。

关键词：电动车组车体转向架控制装置

在线全文

学校读者我要写书评

暂无评论

PeT生产的改进及齿轮泵技术的革新

国外纺织技术 1998年第9期 35-36页

作者： j.e.Guzman 高善荣

自从PeT在数十年前投产以来,其生产技术在各领域都得到了很大的发展.在最近的10年中,由于用户的需要和设备性能的提高,这一技术得到了更大的发展.其发展程度比得上计算机和其他高科技工业.在可预见的将来,它还会继续得

关键词：齿轮泵领域生产线回转式容积泵生产能力预聚物 PeT

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

利用润湿和铺展性质选择化妆品油相

日用化学工业译丛 1990年第1期 38-39页

作者： e.j.Brunde 胡征宇

自古以来,动、植物油脂和蜡就是配制化妆品的基本原料。由于天然资源的限制及日益增加的需求,导致近十年来开发了一系列合成的油相原料。如今,这类合成物在品种繁多的化妆品用脂类物中已占据牢固的地位。护肤化妆品的作用是尽可能不影... 详细信息

自古以来,动、植物油脂和蜡就是配制化妆品的基本原料。由于天然资源的限制及日益增加的需求,导致近十年来开发了一系列合成的油相原料。如今,这类合成物在品种繁多的化妆品用脂类物中已占据牢固的地位。护肤化妆品的作用是尽可能不影响皮肤的自然功能,同时保护其免受外界不良影响。因而对原料的性能有特殊的要求。自本世纪中以来,各种天然和合成脂类物对皮肤汗腺的作用一直是许多研究工作的重点。直链饱和烃含量高的石蜡油。

关键词：润湿性铺展性化妆品油相

在线全文

学校读者我要写书评

暂无评论

镍

中国有色冶金 1992年第1期29卷 39-42页

作者： e.j.Hayes 那富智

1990年是镍工业的另一个好年景。非中央计划经济国家的镍需求量增长3%,达到680000t,已连续四年创纪录了。

关键词：中央计划经济伦敦金属交易所市场经济国家不锈钢产量库存量不锈钢生产现货价格西部矿业镍铁精炼厂

Restrictions to the application of 'diagnostic'criteria for recognizing ancient seismites

在线全文

学校读者我要写书评

暂无评论

j.urnal of Palaeogeography 2014年第2期3卷 162-173页

作者： Massimo Moretti A.j.(Tom) van Loon Dipartimento di Scienze della Terra e Geoambientali Università degli Studi di Bari Institute of Geology Adam Mickiewicz University

Soft-sediment deformation structures induced by seismic liquefaction and/or fluidization receive much attention in sedimentological,structural and palaeoseismic *** direct record of larger earthquakes is restricted to instrumental and historical data; the recognition of prehistoric earthquakes requires criteria to recognize seismites in the geological *** areal distribution of seismites can sometimes be related to active faults since distances to the epicenter(for a given magnitude) tend to be related to the liquefaction effects of seismic *** use of soft-sediment deformation structures for palaeoseismic studies has limitations,*** anything is known,for instance,about the effects that modern seismic events have on the sediments in most ***,criteria for the recognition of seismites are still under *** following characteristics seem,particularly in combination,the most reliable:(1) Soft-sediment deformation structures should occur in laterally continuous,preferably recurring horizons,separated by undeformed beds;(2) These deformation structures should be comparable with structures known to have been triggered by modern seismic activity;(3) The sedimentary basin should have experienced tectonic activity at the time when the deformations were formed; and(4) The intensity or abundance of the soft-sediment deformation structures in a presumed seismite should change laterally,depending on the distance to the *** turns out that all of these four criteria have important exceptions.(1) Soft-sediment deformation structures occurring over large lateral distances in a specific layer can be triggered also by other ***,in environments with a low sedimentation rate,the time between successive earthquakes is often too short to allow accumulation of beds that remain ***,total liquefaction of a sandy bed may result in the absence of deformation features.(2) No truly diagnostic sof

关键词： soft-sediment deformation structures seismites palaeo-earthquakes palaeoseismicity