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| 1 | Invisible Web研究综述显示文摘本文对有关 Invisible Web的内容进行了全面、详细地介绍。首先论述了什么是 Invisible Web以及为什么要研究 Invisible Web,同时介绍了两个相关概念 ;其次对 Invisible Web不可见的原因加以分析 ;对 Invisible Web的类型进行了划分 ;介绍了 Invisible Web的检索工具 ;最后总结了 Invisible Web研究的方向。 | 黄晓冬 | 2004 | 情报科学2004,22,9: | 19 |
| 2 | Gram-scale synthesis of all-inorganic perovskite quantum dots with high Mn substitution ratio and enhanced dual-color emission显示文摘Mn-doped all-inorganic perovskite quantum dots (QDs) provide prominent applications in the fields of low-cost light source or display,because of their remarkable properties including dual-color emission and reduced lead content,as well as high photoluminescence quantum yields (PLQYs) and high stability.However,the existing synthesis approaches usually require hash conditions,such as high temperature and nitrogen protection,which is a major hurdler for the practical manufacturing.In addition,the significantly high Mn substitution ratio in CsPbX3 QDs is still challenging.The real dual-color emission with two strong emission peaks in the Mn-doped all-inorganic perovskite QDs has attracted great interest.Here we present a gram-scale approach to synthesize both CsPbxMn1-xCI3 and CsPb1-xMnxClyBr3-y QDs at 100 ℃ in the air with high Mn substitution ratio,up to 55.64% atomically.The as-prepared CsPb1-xMnxClyBr3-y QDs exhibit high PLQYs of 62.41% and dual-color emission with two strong emission peaks around at 400-450 nm and 600 nm,respectively.The enhanced peak at 400-450 nm is a result of the hybrid halides in CsPbBrxCl3-x host.Furthermore,the unique advantage of the optical emission and high PLQYs properties of the CsPbxMn1-xCl3 QDs has been demonstrated as invisible ink for encryption applications and polymer composites.Our gram-scale synthesis approach for Mn-doped all-inorganic perovskite QDs may boost the future research and practical applications of QDs-based white LED,spintronics,and molecular barcoding. | Lvming Dong Zhuo Chen Lei Ye Yan Yu Jianbing Zhang Huan Liu Jianfeng Zang | 2019 | Nano Research2019,12,7: | 6 |
| 3 | New insights into the extraction of invisible gold in a low-grade high-sulfur Carlin-type gold concentrate by bio-pretreatment显示文摘To extract gold from a low-grade(13.43 g/t) and high-sulfur(39.94wt% sulfide sulfur) Carlin-type gold concentrate from the Nibao deposit, Guizhou, a bio-pretreatment followed by carbon-in-pulp(CIP) cyanide leaching process was used. Various methods were used to detect the low-grade gold in the concentrate; however, only time-of-flight secondary-ion mass spectrometry(TOF-SIMS) was successful. With bio-pretreatment, the gold recovery rate increased by approximately 70.16% compared with that obtained by direct cyanide leaching of the concentrate. Various attempts were made to increase the final gold recovery rate. However, approximately 20wt% of the gold was non-extractable. To determine the nature of this non-extractable gold, mineralogy liberation analysis(MLA), formation of secondary product during the bio-pretreatment, and the preg-robbing capacity of the carbonaceous matter in the ore were investigated. The results indicated that at least four factors affected the gold recovery rate: gold occurrence, tight junctions of gold-bearing pyrite with gangue minerals, jarosite coating of the ore, and the carbonaceous matter content. | Xiao-bin Qiu Jian-kang Wen Song-tao Huang Hong-ying Yang Mei-lin Liu Biao Wu | 2017 | International Journal of Minerals,Metallurgy and Materials2017,24,10: | 4 |
| 4 | “隐形Web”资源的利用显示文摘由于Invisible Web中具有高质量的信息内容,它们覆盖多个主题领域,并且这些数据通常又是采用数据库来管理的,用户检索其中的信息时可以得到较高的“检全率”和“检准率”,因此,学术图书馆应该将Invisible Web作为重要的信息源。本文主要讨论学术图书馆利用Invisible Web的方法,诸如利用网上各种现成的“隐形Web”网关、根据本馆的馆藏发展政策建立恰当的Subject Gateway、开发新的信息抽取技术等。 | 李爱国 | 2006 | 图书馆杂志2006,25,4: | 4 |
| 5 | Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin,Indian Ocean显示文摘Interpretation of new multichannel seismic reflection data from the Andaman Forearc Basin(AFB) in the northern Indian Ocean is presented here. The highquality multichannel seismic data from the Andaman Forearc region enable us to examine the seismic characters and to demarcate seismic sequences bounded by distinct unconformities. Ages of marked seismic horizons have been calibrated with available litholog data from nearby industry boreholes. Seismic interpretation of new data shows that the AFB is filled with * 4.5-s-two way travel time(TWT) thick Neogene to Recent sediments. The entire basin assemblage exhibits two distinct major sequences pertaining to the Neogene and Quaternary times. A large part of the basin is filled with intermittent mass transport deposits(MTD). We infer that the episodic uplift of the Invisible Bank, protuberance of the outerarc and regular deformation through reactivation of preexisting normal faults since the Pleistocene could be attributed as causal mechanisms for the MTDs. Strong bottom simulating reflectors are identified in the Late Miocene and younger sediments of the outerarc and AFB at a depth of * 0.6 s TWT and correspond to the presence of gas hydrates in this region. Our interpretations have significant implications for geodynamic as well as resource exploration in the AFB. | Dhananjai K.Pandey Goli Anitha Ramesh Prerna Anju Pandey | 2017 | Petroleum Science2017,14,4: | 3 |
| 6 | NMR invisible' aluminum species in dealuminated mordenite zeolite:a ~1H/^(27)Al TRAPDOR NMR study显示文摘Various kinds of aluminum species in dealuminated mordenite were investigated in detail, and the quadrupole coupling constants (QCCs) for aluminum atoms associated with these species were obtained by means of the newly introduced 1 H/ 27 Al TRAPDOR method as well as 27 Al magic angle spinning (MAS) nuclear magnetic resonance (NMR). QCC values of 11.3, 15.3, 13.3 and (14.0±0.6) MHz were determined from the TRAPDOR profiles for Lewis acid sites, Bronsted acid sites (SiOHAl) and two kinds of non framework aluminum species Al(OH) n , respectively. The source of the 'invisible Al' is discussed on the basis of the NMR experimental results. | 邓风 岳勇 叶朝辉 | 1998 | Science China Chemistry1998,41,2: | 1 |
| 7 | The Existence of the Negative Charge of Gold in Sulphide Minerals and Its Formation Mechanism显示文摘Through a study, particularly an X-ray photoelectron spectroscopy (XPS or ESCA) analysis, of gold-bearing arsenopyrite and pyrite in Carlin-type gold deposits of Guangxi, China, and hydrothermally synthesized gold-bearing pyrite and marcasite, the authors have found that these minerals contain 'invisible gold' whose binding energy is lower than that of native gold (Au°). Therefore they suggest that gold occurs in a negative charge state in these sulphide minerals as it replaces some sulphur and is combined with sulphur with the covalent bond. This paper also preliminarily discusses the possibility of its formation from the chemistry and geochemistry of gold, crystal chemistry of arsenopyrite, pyrite and marcasite and geochemical environment. | Li Jiuling, Feng Daming, Qi Feng and Zhang Guilan Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing Beijing U niversity of Science and Engineering, Beijing Fei Zhenbi | 1995 | Acta Geologica Sinica(English Edition)1995,69,3: | 0 |
| 8 | 论《无形人》的成长主题显示文摘As Ralph Ellison’s masterpiece,Invisible Man demonstrates the protagonist’s initiation journey from ignorance to maturity.This thesis focuses on the analysis of the protagonist’s initiation process of losing and regaining his identity from three aspects:personal identity,cultural identity and social identity. | 许玲 王晓巍 | 2014 | 青春岁月2014,0,5: | 0 |
| 9 | AFRO-AMERICAN IDENTITY CONFUSION AND DEVELOPMENT STRATEGIES IN INVISIBLE MAN显示文摘Ralph Ellison is one of the most famous African-American writers in 20th century.Invisible Man is the only one novel in his whole life,which depicts a young black man searching for identity in a white-dominated society.Through analyzing the protagonist,this essay tries to reflect the Afro-American identity confusion in 20th century and find out its underlying causes from cultural origins.Meanwhile,it concludes the development strategies for black people,which is implied in Ellison’s novel. | 张婧 | 2018 | 校园英语2018,,8: | 0 |
| 10 | Identity in Invisible Man——from the clue of words by grandfather显示文摘The protagonist in Invisible Man experiences many painful incidents and gradually grows into a mature individual. He undergoes the transformation from with self-oriented ambition to racial-oriented ambition, and then to self-oriented ambition in a new sense. The process of his transformation can be seen from his changing contemplations on words by his grandfather. The process of his transformation is also a process of pursuing his identity. | 陶永菊 | 2014 | 海外英语2014,,15: | 0 |
| 11 | invisible hand 小议显示文摘invisible hand 是由英国人亚当·斯密(Adam Smith)首先提出来的。Adam Smith(1723—1790)是英国苏格兰人,经济学家与哲学家。他于1776年完成了经济学史上的经典著作《国富论》(The Wealth of Na- | 符延军 | 2001 | 语言教育2001,0,3: | 0 |
| 12 | Invisible Influencers--Language experts' role in the frontline of the battle against COVID-19显示文摘When Ji Jin flew into Italy in March,it was the height of the novel coronavirus disease(COVID-19)epidemic there and her work meant direct exposure to high risk.She was an interpreter for the Chinese medical team that had been sent to work with Italian doctors on COVID-19 prevention and control. | Li Fangfang | 2020 | Beijing Review2020,63,21: | 0 |
| 13 | Individual Identity and Collective Identity in Ralph Ellison's Invisible Man显示文摘Ralph Ellison’s Invisible Man deals with the identity issue fundamental for black Americans to reestablish themselves in the white-dominated society.While the narrator suffers from identity crisis in multiples ways,the paper focuses on the conflict between his need to build a distinctive individual identity with the prerequisite to surrender to collective identity in order to blend in the group. | 韩秀 | 2015 | 海外英语2015,,8: | 0 |
| 14 | 短篇小说The Invisible Japanese Gentlemen的语言特点与翻译策略的选择显示文摘由于The Invisible Japanese Gentlemen写作语言极具特色,这对该小说的翻译提出了较高的要求,只有依据小说的风格特点,才能做出正确的翻译策略的选择。 | 袁卫民 | 2014 | 时代文学(下半月)2014,,8: | 0 |
| 15 | The Divine and the Political Economy显示文摘The Invisible Hand Of Divine Providence in Christian Theology leads mankind continuously with teleological aim.Adam Smith’s“Invisible Hand of Political Economy”leads society to the highest level of prosperity,where the benefits of households,businesses and the state are optimized.Adam Smith,influenced by the Theology of Augustine and Thomas Aquinas,transfers the Hand of Divine Providence to economic life and lets individuals function on the basis of their own interest and the“sympathy”governing their economic relations.Two patterns run at the same time.The economic circuit is driven by the good choice of the invisible hand,and mankind is driven by the good providence of God.The purpose of our work is to present this coincidence of the two“long hands”of God and the Economy and the influences that the Philosophy of Ethical Emotions of Political Economy has received from Theology. | Odysseas Kopsidas | 2018 | Economics World2018,6,3: | 0 |
| 16 | “看不见网页”与网上信息资源显示文摘本文简单分析了“看不见网页”出现的原因,介绍了几个“看不见网页”的导航网站,探讨了如何利用“看不见网页”获取网上学术信息资源。 | 辛继宾 | 2007 | 中国索引2007,5,2: | 0 |
| 17 | On The Protagonist's Imposed Identity as a Modern Running Slave in Invisible Man显示文摘Invisible Man created by Ralph Ellison mainly discusses the protagonist’s identity issue and this paper focuses on one of his imposed identity as a modern running slave to disclose the oppression suffered by modern black people and the progress they make in self-identity quest. | 郎文君 胡琴 | 2014 | 读与写(教育教学刊)2014,11,5: | 0 |
| 18 | Research on the Influences of the Invisible Environment of Language Laboratories on the Practical Teaching Based on the Network显示文摘There is a close relationship between the environmental factors and the human learning.The language laboratory is an important place for the foreign language learning.Building a good learning and practice environment of language laboratories plays an important role in the foreign language teaching.Learning can never take place in a vacuum.It always takes place in a variety of environments.Some of these environments may be more conducive to the development of the cognitive,emotional and social skills than others. | ZHANG Fan | 2019 | International English Education Research2019,,2: | 0 |
| 19 | An Appreciation of Symbols in Invisible Man显示文摘Ralph Ellison is a famous contemporary American black writer. His novel Invisible Man made him an instant celebrity. Symbolism is one of the most outstanding writing techniques in this novel. This paper gives an appreciation of symbols in order to present the novel's profound themes and the people's complicated inner worlds. | 王婷 | 2017 | 校园英语2017,,17: | 0 |