检索结果-南通市图书馆

“Commercial Revolution” in the Song Dynasty

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Literature and Art Studies 2019年第10期9卷 1093-1098页

作者： ivy K.agyekum Department of Liberal Arts and Journalism Ocean University of ChinaQingdaoChina

The Song Dynasty has been known in history for its great commercial success due to a series of events in the *** order to explain the reasons for economic success,this paper attempts to use factors such as political stability,discovery of new rice species in the South,the introduction of paper money by merchants from Sichuan in the South of China,and the increase in iron production especially in the *** of products is also discussed separately but into details.A further mention of characteristics of the internal and international trade is also highlighted in this *** introduction of how the Song dynasty was founded and its distinct political,social and cultural characteristics,are delved *** the separation of northern Song Dynasty from the southern Song dynasty will be *** paper concludes with combined interpretations from the famous“Qing Ming Shag He Tu”*** painting gives a somewhat illustrated evidence of the vibrancy of the Song Dynasty’s commercialisation recorded in history.

关键词： Song Dynasty commercialisation economy trade specialisation

Adaptation in brain structure and respiratory and olfactory structures across environmental gradients in African and North American muroid rodents

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2024年第1期19卷 165-181页

作者： Peter J.TAYLOR Aluwani NENGOVHELA Christiane DENYS Graham R.SCOTT Catherine M.ivy Department of Zoology School of Natural and Mathematical SciencesUniversity of VendaThohoyandouSouth Africa Afromontane Unit Department of Zoology and EntomologyUniversity of the Free StatePhuthaditjhabaSouth Africa Department of Mammalogy National MuseumBloemfonteinSouth Africa Institut de Systématique EvolutionBiodiversité(ISYEB)Muséum National d’Histoire NaturelleCNRSSorbonne UniversitéEPHEUniversitéDes AntillesParisFrance Department of Biology McMaster UniversityHamiltonOntarioCanada Guglielmo and Shoemaker Labs Advanced Facility for Avian ResearchUniversity of Western OntarioLondonOntarioCanada

Morphometric studies of 3D micro CT-scanned images can provide insights into the evolution of the brain and sensory structures but such data are still scarce for the most diverse mammalian order of *** reviewed and new data,we tested for convergence to extreme aridity and high elevation in the sensory and brain morphology of rodents,from morphometric data from micro-CT X-ray scans of 174 crania of 16 species of three distantly re-lated African murid(soft-furred mice,Praomyini,laminate-toothed rats,Otomyini,and gerbils,Gerbillinae)clades and one North American cricetid(deer mice and white-footed mice,Peromyscus)*** studies demon-strated convergent evolution acting on the oval window area of the cochlea(enlarged in extremely arid-adapted species of Otomyini and Gerbillinae)and on endocranial volume(reduced in high elevation taxa of Otomyini and Peromyscus).However,contrary to our predictions,we did notfind evidence of convergence in brain struc-ture to aridity,or in the olfactory/respiratory system(turbinate bones)to high *** structure differed,particularly in the petrosal lobules of the cerebellum and the olfactory bulbs,between Otomyini and Gerbillinae,with extreme arid-adapted species in each clade being highly divergent(not convergent)from other species in the same *** observed greater“packing”of the maxillary turbinate bones,which have important respiratory functions,in Peromyscus mice from high and low elevations compared to the high-elevation African Praomyini,but more complex patterns within Peromyscus,probably related to trade-offs in respiratory physiology and heat exchange in the nasal epithelium associated with high-elevation adaptation.

关键词： 3D morphometrics Africa brain size North America Rodentia sensory evolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

游戏、文学实现网络增长（英文）

新世纪智能 2024年第ZF期 16-17页

作者： ivy

After several decades of development,Chinese cultural industries,such as online literature and video games,have created products that enrich global culture with creativity,imagination and local elements,appealing to b...

关键词：

法国VUMETRE媒体力荐:欧博和韵JCONSONANCE AMP150高品质串流合并放大器

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

视听前线 2024年第7期 24-26页

作者：文森特·吉列明 Yilan(译) ivy Li(译) 不详

Opera公司由刘士珲先生于1994年创立,至今已经发展了30年,而现在这个品牌又来到法国。Opera公司旗下Consonance品牌的产品涵盖了晶体管与电子管放大器、CD播放机、网络播放器等。当然包括新的两款晶体管放大器,其中就有本期测试的AMP150。

关键词：电子管放大器晶体管放大器串流 ONA 高品质

一切皆有可能测试Consonance Reference CDS8音乐播放器

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

视听前线 2024年第10期 35-37页

作者：克里斯蒂安·拜尔 Yilan(编译) ivy Li(编译) 不详

以前,我从未想过听CD会过时,但在无载体媒体时代,情况已经如此。幸运的是,一群执着的音响发烧友还在坚持。ORERA Consonance Re horee a OPERA Consonance Reference CDS8这款CD、数码流播放器,不仅可以播放CD,而且它是以非常高的水准... 详细信息

以前,我从未想过听CD会过时,但在无载体媒体时代,情况已经如此。幸运的是,一群执着的音响发烧友还在坚持。ORERA Consonance Re horee a OPERA Consonance Reference CDS8这款CD、数码流播放器,不仅可以播放CD,而且它是以非常高的水准来播放CD,名副其实的好产品,可以与Advance Acoustics、Creek、AVM等这些品牌的产品齐名。

关键词：音乐播放器音响发烧友一切皆有可能无载体 Reference CDS AVM

Bile salt induced solubilization of methylene blue: Study on methylene blue fluorescence properties and molecular mechanics calculation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2017年第1期7卷 71-75页

作者： Susithra Selvam ivy Sarkar Department of Chemistry Vel Tech University Avadi Chennai 600062 Tamilnadu India Department of Chemistry Indian Institute of Technology Madras Chennai 600036 Tamilnadu India

Methylene blue(MB) is a hydrophobic drug molecule, having importance both as a staining reagent and pharmaceutical agent. MB is strongly fluorescent, with an emission peak at 686 nm(λ_(ex)665 nm). In the study,the possibility of MB as an extrinsic fluorophore to study the micellization behavior of bile salts(BSs) was carried out. Since BSs are drug delivery systems, the solubilization of hydrophobic MB drug molecule by BSs was achieved and the nature of association of MB with BS media, namely sodium cholate(Na C) and sodium deoxycholate(Na DC) was evaluated. Change in the photophysical properties of MB is monitored through fluorescence intensity and fluorescence anisotropy at emission peak, 686 nm of MB. Molecular mechanics calculations were carried out to evaluate the MB–BS association. The estimated heat of formation, ΔH_f values are –625.19 kcal/mol for MB–Na C and –757.48 kcal/mol for MB–Na DC. The photophysical study also revealed that MB reports the step-wise aggregation pattern of BSs media, as an extrinsic fluorescence probe.

关键词： Methylene blue Sodium deoxycholate Sodium cholate Absorption Fluorescence spectroscopy Molecular mechanics

维普期刊数据库

法国Haute Fidélit音响媒体评欧博和韵为 AMP150串流合并放大器和LINEAR 845 25周年版电子管合并放大器

在线全文

学校读者我要写书评

暂无评论

视听前线 2024年第5期 49-54页

作者：布鲁诺·卡斯特卢佐蒂埃里·索沃 Yilan(编译) ivy Li(编译) 不详

Consonance又回到法国,这个中国品牌以出品价格实惠的电子管放大器和优质的音源产品而闻名。这款正在评测的新型号就是这种情形,这是一款集成串流播放与DAC解码的晶体管合并放大器,它的输出功率为105W,功率放大部分工作于“冷A类”,这是... 详细信息

Consonance又回到法国,这个中国品牌以出品价格实惠的电子管放大器和优质的音源产品而闻名。这款正在评测的新型号就是这种情形,这是一款集成串流播放与DAC解码的晶体管合并放大器,它的输出功率为105W,功率放大部分工作于“冷A类”,这是Consonance经过验证可以提升音乐表现力的技术解决方案。

关键词：电子管放大器功率放大串流技术解决方案音乐表现力输出功率音源解码

Denaturation studies on bovine serum albumin–bile salt system:Bile salt stabilizes bovine serum albumin through hydrophobicity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2018年第1期8卷 27-36页

作者： Karpagaraj Malarkani ivy Sarkar Susithra Selvama Department of Chemistry Vel Tech UniversityAvadiChennai 600062India Department of Chemistry Indian Institute of Technology MadrasChennai 600036India Department of Chemistry PSG College of TechnologyPeelameduCoimbatore 641004India

Protein denaturation is under intensive research, since it leads to neurological disorders of severe consequences. Avoiding denaturation and stabilizing the proteins in their native state is of great importance,especially when proteins are used as drug molecules or vaccines. It is preferred to add pharmaceutical excipients in protein formulations to avoid denaturation and thereby stabilize them. The present study aimed at using bile salts(BSs), a group of well-known drug delivery systems, for stabilization of *** serum albumin(BSA) was taken as the model protein, whose association with two BSs, namely sodium cholate(Na C) and sodium deoxycholate(Na DC), was studied. Denaturation studies on the preformed BSA-BS systems were carried out under chemical and physical denaturation conditions. Urea was used as the chemical denaturant and BSA-BS systems were subjected to various temperature conditions to understand the thermal(physical) denaturation. With the denaturation conditions prescribed here,the data obtained is informative on the association of BSA-BS systems to be hydrophobic and this effect of hydrophobicity plays an important role in stabilizing the serum albumin in its native state under both chemical and thermal denaturation.

关键词： Bile salts Bovine serum albumin Chemical denaturation Thermal denaturation Tryptophan fluorescence Protein stabilization

维普期刊数据库

A critical review of carbonate reservoir wettability modification during low salinity waterflooding

在线全文

学校读者我要写书评

暂无评论

Petroleum 2023年第3期9卷 317-330页

作者： Perekaboere ivy Sagbana Kwame Sarkodie Wilberforce Aggrey Nkrumah Zone 63 District 841DohaQatar Petroleum Engineering Department Kwame Nkrumah University of Science and TechnologyGhana Smart Fluids Laboratory Kwame Nkrumah University of Science and TechnologyGhana

The nature of carbonate reservoirs promotes the adsorption of oil onto the rock surface hence making oil recovery a challenge even with the interventions of varied chemical EOR ***,low salinity water flooding has become of great interest since it is cost-effective and environmentally *** low salinity waterflooding has been highly investigated in sandstone reservoirs,it is not the same for carbonate reservoirs due to its ***,it has been proposed as a favourable technique to mobilise the trapped oil in carbonate *** alteration is regarded as the most accepted mechanism for low salinity flooding but has not been well understood making field scale applications *** this paper,we present a detailed review of the wettability alteration mechanisms in carbonate reservoirs during low salinity *** influencing wettability alteration in carbonates and the interactions that occur at the rock/brine/oil interface are also *** different methods utilised for wettability measurements during low salinity waterflooding are also reviewed including their drawbacks and advantages and *** will provide an improved understanding of the low salinity flooding application in carbonate reservoirs.

关键词： Low salinity flooding Wettability alteration Carbonate rocks

维普期刊数据库