检索结果-南通市图书馆

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

岩石中波传播速度频散与衰减

石油学报 2012年第2期33卷 332-342页

作者：王海洋孙赞东 mark chapman 中国石油大学地质地球物理综合研究中心北京102249 英国爱丁堡大学地球科学学院

速度频散与衰减是地震岩石物理领域一个前沿性问题,它不仅是开展频率域储层及流体预测的关键理论基础,同时也是解决不同地球物理测量方法(地面地震、VSP、测井、超声波岩心观测等)之间数据匹配困难的重要手段。笔者在阐述速度频散和衰... 详细信息

速度频散与衰减是地震岩石物理领域一个前沿性问题,它不仅是开展频率域储层及流体预测的关键理论基础,同时也是解决不同地球物理测量方法(地面地震、VSP、测井、超声波岩心观测等)之间数据匹配困难的重要手段。笔者在阐述速度频散和衰减现象基本特征的基础上,详细回顾了Biot模型、喷射流模型、BISQ模型、双孔模型、裂缝-孔隙微结构模型和斑块饱和模型等6种主要速度频散与衰减理论模型的研究进程、原理和限制性,利用示意图直观地描述了这些模型的机制,并给出了它们各自的高低频极限、特征频率和适用条件。同时系统回顾并分析了国内外半个多世纪来速度频散与衰减实验测量技术的发展进程和应用现状,并在实验测量数据的基础上给出了自己对地球物理测量手段、岩石物理模型与频率相关性方面的思考和认识,即有必要将单频带的岩石物理模型拓展到全频带,并基于此将不同频带地球物理手段的测量数据联系起来,实现在同一尺度下的综合应用。

关键词：速度频散衰减频散模型频散测量高低频极限

Application of seismic anisotropy fluid detection technology in the Ken 71 well block of Shengli Oilfield

在线全文

学校读者我要写书评

暂无评论

Applied Geophysics 2011年第2期8卷 117-124,176,177页

作者：毕丽飞钱忠平张峰陈晓燕韩世春 mark chapman 中国地质大学(武汉) 湖北武汉430074 胜利油田物探院山东东营257001 东方地球物理公司物探技术研究中心河北涿州072751 UK Imperial College LondonSW72AZUK 胜利油田钻井工程技术公司山东东营257064 The University of Edinburgh EdinburghEH9 3LAUK

On the basis of chapman＇s（2003） model,as the seismic wave incidences angles vary from 0° to 45° while propagating in anisotropic media（HTI）,the slow S-wave will sufferred by serious attenuation and dispersion and is sensitive to fluid viscosity but the P-and fast S-waves don＇*** slow S waves propagating normal to fractures,the amplitudes are strongly affected by pore ***,the slow S-wave can be used to detect fractured reservoir fluid information when the P-wave response is insensitive to the *** this paper,3D3C seismic data from the Ken 71 area of Shengli Oilfield are processed and *** travel time and amplitude anomalies of slow S-waves are detected and correlated with well log *** S-wave splitting in a water-bearing zone is higher than in an oil-bearing ***,the slow S-wave amplitude change is more significant in water-bearing zones than in oil-bearing zones.

关键词： anisotropy slow S-wave fluid detection

Frequency-dependent seismic anisotropy and its implication for estimating fracture size in low porosity reservoirs

在线全文

学校读者我要写书评

暂无评论

Frequency-dependent seismic anisotropy and its implication f...

Genomic analyses revealed the rich genetic variations and potential targeted genes of selection during domestication from a perennial woody tree to an annual semi-woody crop in castor bean

中国科学院地质与地球物理研究所2003学术年会

作者： SONJA MAULTZSCH mark chapman JOHN H.QUEEN Edinburgh Anisotropy Project EdinburghU.K. ConocoPhillips HoustonTexasU.S

The use of seismic anisotropy for characterizing subsurface fracture orientations and intensity has become increasingly ***,the reluctance of reservoir engineers to accept seismic anisotropy as a routine technique for fracture characterization is partly because of its inability to provide information about sizes and volume of *** both grain-scale micro-cracks and formation -scale macro-fractures are considered causes of *** anisotropy, reservoir engineers are more interested in the latter as permeability in many

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

Genomic analyses revealed the rich genetic variations and po...

Comparative and population genomics of buckwheat species reveal key determinants of flavor and fertility

中国植物学会第十六次全国会员代表大会暨85周年学术年会

作者： Wei Xu Tianquan Yang Lijun Qiu mark A.chapman De-Zhu Li Aizhong Liu Department of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of Sciences Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of Sciences Biological Sciences and Centre for Underutilised Crops University of Southampton Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of EducationSouthwest Forestry University

Relatively little is known about the genetic variation of woody trees during *** bean（Ricinus communis L.,Euphorbiaceae） is an important nonedible annual semi-woody oilseed crop and its seed oils are widely used in *** cultivated castor bean is evolved from its wild progenitors with perennial woody *** castor bean was utilized by human dating back more than 6000 years,its domestication origin,genomic variation and potential targets of selection underlying domestication traits remain ***,we performed a phylogenetic analysis,resulting in that the wild accessions were distinctively separated from the cultivated *** sequencing for three accessions（one each wild,landrace and cultivar） and their genomic analyses showed a large number of genetic variants between wild and cultivated castor bean,and relatively few between cultivars,suggesting that castor bean has undergone a genetic bottleneck during *** genome analysis revealed that many candidate genes of selection and key pathways potentially involved in the transition from a perennial woody tree to annual semi-woody ***,among 16 oil-related genes only three showed evidence of selection and the remainder showed low or zero genetic variation at the population level,suggesting strong purifying selection in both the wild and domesticated gene *** results extend our understanding of the origin,genomic variation and evolution,and woody tree domestication of castor *** genomic variation identified within wild and cultivated castor bean will provide a valuable resource for future gene-trait associations and as tools for castor bean breeding.

关键词： Castor bean genetic variation domestication woody tree perennialism annualism

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

Molecular Plant 2023年第9期16卷 1427-1444页

作者： Kaixuan Zhang Yuqi He Xiang Lu Yaliang Shi Hui Zhao Xiaobo Li Jinlong Li Yang Liu Yinan Ouyang Yu Tang Xue Ren Xuemei Zhang Weifei Yang Zhaoxia Sun Chunhua Zhang Muriel Quinet Zlata Luthar Mateja Germ Ivan Kreft Dagmar Janovska Vladimir Meglic Barbara Pipan Milen I.Georgiev Bruno Studer mark A.chapman Meiliang Zhou Institute of Crop Sciences Chinese Academy of Agricultural SciencesNational Crop Genebank BuildingZhongguancun South Street No.12Haidian DistrictBeijing 100081China College of Agronomy Sichuan Agricultural UniversityChengdu 611130China Annoroad Gene Technology(Beijing)Co. LtdBeijing 100176China College of Agriculture Institute of Agricultural BioengineeringShanxi Agricultural UniversityTaigu 030801ShanxiChina Shanxi Key Laboratory of Minor Crops Germplasm Innovation and Molecular Breeding Shanxi Agricultural UniversityTaiyuan 030031ShanxiChina Tongliao Institute Agricultural and Animal Husbandry Sciences Tongliao 028015Inner MongoliaChina Groupe de Recherche en Physiologie Ve´ge´tale(GRPV) Earth and Life Institute-Agronomy(ELI-A)Universite´Catholique de LouvainCroix du Sud 4-5bo^ıte L7.07.13B-1348Louvain-la-NeuveBelgium Biotechnical Faculty University of Ljubljana1000 LjubljanaSlovenia Nutrition Institute Trzaska 401000 LjubljanaSlovenia Gene Bank Crop Research InstituteDrnovska´507Prague 6Czech Republic Agricultural Institute of Slovenia Hacquetova ulicaLjubljanaSlovenia Laboratory of Metabolomics Institute of MicrobiologyBulgarian Academy of SciencesPlovdivBulgaria Center of Plant Systems Biology and Biotechnology PlovdivBulgaria Molecular Plant Breeding Institute of Agricultural SciencesETH ZurichUniversitaetstrasse 28092 ZurichSwitzerland Biological Sciences University of SouthamptonLife Sciences Building 85Highfield CampusSouthampton SO171BJUK

Common buckwheat(Fagopyrum esculentum)is an ancient crop with a world-wide *** to its excellent nutritional quality and high economic and ecological value,common buckwheat is becoming increasingly important throughout the *** availability of a high-quality reference genome sequence and population genomic data will accelerate the breeding of common buckwheat,but the high heterozygosity due to the outcrossing nature has greatly hindered the genome *** we report the assembly of a chromosome-scale high-quality reference genome of *** ***,a homozygous self-pollinating variant of common *** genomics revealed that two cultivated buckwheat species,common buckwheat(***)and Tartary buckwheat(***),underwent metabolomic divergence and ecotype *** expansion of several gene families in common buckwheat,including FhFAR genes,is associated with its wider distribution than Tartary *** number variation of genes involved in the metabolism of flavonoids is associated with the difference of rutin content between common and Tartary ***,we present a comprehensive atlas of genomic variation based on whole-genome resequencing of 572 accessions of common *** and evolutionary genomics reveal genetic variation associated with environmental adaptability and floral development between Chinese and non-Chinese cultivated ***-wide association analyses of multi-year agronomic traits with the content of flavonoids revealed that Fh05G014970 is a potential major regulator of flowering period,a key agronomic trait controlling the yield of outcrossing crops,and that Fh06G015130 is a crucial gene underlying flavor-associated ***,we found that the gene translocation and sequence variation of FhS-ELF3 contribute to the homomorphic self-compatibility of common ***,our results elucidate the genetic basis of spe

关键词： buckwheat genomics natural variation adaptation flavonoids Fagopyrum

Mitigating Carbon Emissions:A Comprehensive Analysis of Transitioning to Hydrogen-Powered Plants in Japan’s Energy Landscape Post-Fukushima

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Engineering 2024年第5期121卷 1143-1159页

作者： Nugroho Agung Pambudi Andrew chapman Alfan Sarifudin Desita Kamila Ulfa Iksan Riva Nanda Department of Mechanical Engineering Education Universitas Sebelas MaretSukoharjo57161Indonesia International Institute for Carbon-Neutral Reserch(WPI-I2CNER) Kyushu UniversityFukuoka819-0395Japan Postgraduate of Mechanical Engineering Universitas Sebelas MaretSurakarta57126Indonesia Energy and Society Laboratory Department of Mechanical Engineering EducationUniversitas Sebelas MaretSukoharjo57161Indonesia Department of Metallurgical and Material Engineering Universitas IndonesiaDepok16424Indonesia

One of the impacts of the Fukushima disaster was the shutdown of all nuclear power plants in Japan,reaching zero production in *** response,the country started importing more fossil energy including coal,oil,and natural gas to fill the energy ***,this led to a significant increase in carbon emissions,hindering the efforts to reduce its carbon *** the current situation,Japan is actively working to balance its energy requirements with environmental considerations,including the utilization of hydrogen ***,this paper aims to explore the feasibility and implications of using hydrogen power plants as a means to reduce emissions,and this analysis will be conducted using the energy modeling of the markAL-TIMES Japan *** hydrogen scenario(HS)is assumed with the extensive integration of hydrogen into the power generation sector,supported by a hydrogen import ***,this scenario will be compared with the Business as Usual(BAU)*** results showed that the generation capacities of the BAU and HS scenarios have significantly different primary energy *** BAU scenario is highly dependent on fossil fuels,while the HS scenario integrates hydrogen contribution along with an increase in renewable energy,reaching a peak contribution of 2,160 PJ in *** the HS scenario,the target of reducing CO_(2) emissions by 80%is achieved through significant hydrogen *** 2050,the total CO_(2) emissions are estimated to be 939 million tons for the BAU scenario and 261 million tons for the Hydrogen *** addition,the contribution of hydrogen to electricity generation is expected to be 153 TWh,smaller than PV and wind power.

关键词： Business as usual(BAU)scenario hydrogen scenario CO_(2)emissions power generation sector

130～70ka全球冰量波动、北大西洋冰携事件和深海循环变化

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

海洋地质动态 2000年第8期16卷 14-16页

作者： mark R.chapman 周立君张剑

在线全文

学校读者我要写书评

暂无评论

用“光”雕塑空间——Placebo药房

中国建筑装饰装修 2013年第3期 130-133页

作者： Xara Marantidou Enrique Ramirez mark chapman P.Kokkinias Konstantinos Labrinopoulos & Klab建筑事务所

在PlaceboPharmacy这座面积600多平方米的药房的设计中．Klab建筑事务所的设计师们将光影与空间的关系表达得淋漓尽致。正如理查德·罗杰斯所说”建筑是捕捉光的容器。就如同乐器捕捉音乐一样，光需要可使之展现的建筑。”Klab建筑事务... 详细信息

在PlaceboPharmacy这座面积600多平方米的药房的设计中．Klab建筑事务所的设计师们将光影与空间的关系表达得淋漓尽致。正如理查德·罗杰斯所说”建筑是捕捉光的容器。就如同乐器捕捉音乐一样，光需要可使之展现的建筑。”Klab建筑事务所的设计师们无疑也是光影的信徒．在PlaceboPharmacy这座面积600多平方米的药房的设计中．他们也将光影与空间的关系表达地淋漓尽致。

关键词：药房空间建筑事务所雕塑设计师关系表光影平方

Elucidating the genetic basis of antioxidant status in lettuce (Lactuca sativa)

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2015年第1期2卷 47-59页

作者： Annabelle Damerum Stacey L Selmes Gaia F Biggi Graham JJ Clarkson Steve D Rothwell Maria JoséTruco Richard W Michelmore Robert D Hancock Connie Shellcock mark a chapman Gail Taylor Centre for Biological Sciences University of SouthamptonLife SciencesUniversity RoadSouthamptonSO171BJUK Vitacress Limited Lower Link FarmSt Mary BourneAndoverSP116DBHampshireUK The Genome Centre and the Department of Plant Sciences University of CaliforniaDavis95616CAUSA The James Hutton Institute InvergowrieDD25DADundeeUK

A diet rich in phytonutrients from fruit and vegetables has been acknowledged to afford protection against a range of human diseases,but many of the most popular vegetables are low in *** relatives of crops may contain allelic variation for genes determining the concentrations of these beneficial phytonutrients,and therefore understanding the genetic basis of this variation is important for breeding efforts to enhance nutritional *** this study,lettuce recombinant inbred lines,generated from a cross between wild and cultivated lettuce(Lactuca serriola and Lactuca sativa,respectively),were analysed for antioxidant(AO)potential and important phytonutrients including carotenoids,chlorophyll and phenolic *** grown in two environments,96 quantitative trait loci(QTL)were identified for these nutritional traits:4 for AO potential,2 for carotenoid content,3 for total chlorophyll content and 87 for individual phenolic compounds(two per compound on average).Most often,the *** alleles conferred an increase in total AOs and *** genes underlying these QTL were identified by BLASTn searches;in several cases,these had functions suggesting involvement in phytonutrient biosynthetic *** of a QTL on linkage group 3,which accounted for>30%of the variation in AO potential,revealed several candidate genes encoding multiple MYB transcription factors which regulate flavonoid biosynthesis and flavanone 3-hydroxylase,an enzyme involved in the biosynthesis of the flavonoids quercetin and kaempferol,which are known to have powerful AO ***-up quantitative RT-PCR of these candidates revealed that 5 out of 10 genes investigated were significantly differentially expressed between the wild and cultivated parents,providing further evidence of their potential involvement in determining the contrasting *** results offer exciting opportunities to improve the nutritional content and health benefits of lettu

关键词： breeding crops Lactuca