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851篇 您的检索式:作者名="KELLOGG"
    题名 作者 年代 出处 被引量
1Mesoporous Ag nanocubes synthesized via selectively oxidative etching at room temperature for surface- enhanced Raman spectroscopy显示文摘Silver nanocubes enriched with {100} facets have been extensively used for surface-enhanced Raman scattering. Herein, we report a new water-phase synthesis method for weU-defined Ag nanocubes with tunable sizes via a two-step procedure at room temperature. First, irregularly shaped Ag nanoparticles (INPs) were prepared by reducing silver ammonia solution using ethylal. Second, the agglomerated INPs were selectively etched with HNO3 and C1- to yield {100} facet-rich mesoporous Ag nanocubes. The mechanism of Ag-nanocube formation and growth was investigated in detail by elucidating the involved chemical reactions and physical changes at each step during the synthesis. The addition of C1- anions was responsible for facilitating Ag nanoparticle growth by removing surface-adsorbed Ag+ species, thereby eliminating inter-particle repulsive forces. This agglomeration was found crucial for the subsequent selective oxidation of Ag nanoparticles because the protective agent used, polyvinylpyrrolidone (PVP), was the most effective one for adsorption on the surfaces of Ag nanoparticles of size greater than approximately 50 nm. Importantly mesopores were found inside the Ag nanocubes; this can be attributed to the unavoidable imperfect packing during the agglomeration of INPs. The newly prepared Ag nanocubes were further used to enhance the Raman signal of rhodamine 6G, which is capable of reducing the detection limitation to 10-16 mol·L-1.Lin Gan Meijia Yang Xi Ke Guofeng Cui Xudong Chen Shiva Gupta William Kellogg Drew Higgins Gang Wu 2015Nano Research2015,8,7:4
2蛋氨酸锌对泌乳牛生产性能的影响显示文摘锌是动物体内很多酶系统的必需成份之一,严重缺锌可减少奶牛的进食量,降低饲料效率,影响生长速度。此外,因缺锌还会发生皮毛杂乱,关节僵硬、磨牙、唾液分泌过多,易感染各种传染病。临界性缺锌尽管不是很严重,但也可引起进食量减少,生长速率减慢,抵抗力下降。锌还和奶牛皮肤和骨骼的蛋白质合成有关。蛋氨酸是含硫氨基酸,在产奶牛的泌乳早期是第一限制性氨基酸。D.Wayne kellogg 刁其玉 1991国外畜牧学(草食家畜)1991,,3:2
3Complications of abdominal urologic laparoscopy:longitudinal five-year analysis显示文摘KELLOGG J P IOANNIS V A KOON H R 2004Urology2004,63,1:1
4Effects of water level,shade and time on germination and growth of freshwater marsh plants along a simulated successional gradient显示文摘Kellogg C H Bridgham S D Leicht S A 2003Journal of Ecology2003,91,2:1
5On the relationship between customer participation and satisfaction:Two frameworks显示文摘Kellogg D L Youngdahl W E Bowen D E 1997International Journal of Service Industry Management1997,8,3:1
6A constructive proof of the Brouwer fixed point theorem andcom- putational results显示文摘Kellogg R B Li T Y Yorke J A 1976SIAM J Numer Anal1976,,13:1
7Superoxide,hydrogen peroxide,and single oxygen in lipid peroxidation by a xanthine oxidase system显示文摘Kellogge W Fridovich I 1975J Biol Chem1975,250,:1
8Phosphorus retention and movement across an ombrotrophic- minerotrophic peatland gradient显示文摘Kellogg LE Bridgham SD 2003Biogeochemistry2003,,:1
9Review:Effects ofzinc methionine complex on milk production and somaticcell count ofdairy cattle:twelve-trial summary显示文摘KELLOGG D W TOMLINSON D J SOCHA M T 2004The Professional Animal Scien-tist2004,20,4:1
10On the relationship between customer participation and satis-faction: two frameworks显示文摘KELLOGG D L YOUNGDAHL W E BOWEN D E 1997International Journal of Service1997,8,3:1
11Sentinel surveil- lance of HIV-1 transmitted drug resistance, acute infection and recent infection显示文摘Truong HM Kellogg TA McFarland W 2011PLoS One2011,6,25:1
12Cross-kingdom amplification using Bacteria-specific primers: complications for studies of coral microbial ecology显示文摘Galkiewicz J P Kellogg C A 2008Applied and Environmental Microbiology2008,74,24:1
13The United Kingdom National Health Service perspective on the power of information in healthcare 显示文摘Kellogg MD 2013Clinical Chemistry2013,59,5:1
14Heterogeneous expression patterns and separate roles of the SEPALLATA gene LEAFY HULL STERILE1 in grasses显示文摘Malcomber S T Kellogg E A 2004The Plant Cell2004,16,7:1
15Attentional Overload and Writing Performance: Effects of Rough Draft and Outline Strate gies显示文摘Kellogg R T 1988Journal of Experimental Psychology: Learning Memory and Cognition1988,1988,14:1
16Complications of abdominal urologic iaparoscopy:longitudinal five-year analysis显示文摘 Joannis VA Koon HR 2004Urol2004,63,:1
17Did homeodomain proteins duplicate before the origin of angiosperms,fungi,and metazoan显示文摘Bharathan G Janssen B J Kellogg E A 1997Proc Natl Acad Sci USA1997,94,13:1
18Phylogenetic aspects of the evolution of C4 photosynthesis 显示文摘Kellogg E A 1999C4 Plant Biology1999,12,:1
19Effects of primer-template mismatches on the polymerase chain reaction:human immunodeficiency virus type 1 model studies显示文摘Kwok S Kellogg DE McKinney N 1990Nucleic Acids Res1990,18,:1
20Matrices similar to a positive or essentially positive matrix显示文摘Kellogg R B 1971Linear Algebra Appl1971,4,:1
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