ultra-sharp a-fe2o3 nanoflakes growth mechanism and field-em

ultra-sharp a-fe2o3 nanoflakes growth mechanism and field-emission

... sow 3,4 wei huang 5 ting yu 1,✉ Ultra-sharp α-Fe 2 O 3 nanoflakes: growth mechanism and field-emission 1 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang ... that, comparing with the standard powder diffraction pattern of bulk α-Fe 2 O 3 , our XRD pattern of the α-Fe 2 O 3 nanoflakes ZHENG et al. Ultra-sharp α-Fe 2 O 3 nanoflakes: growt...

Ngày tải lên : 20/03/2014, 13:11

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solvent-controlled synthesis of tio2 1d nanostructures growth mechanism and characterization

... synthesis of TiO 2 1D nanostructures: Growth mechanism and characterization Kajari Das Ã , Subhendu K. Panda, Subhadra Chaudhuri Department of Materials Science and DST Unit of Nanoscience, Indian ... attention due to their interesting physical and chemical properties, and their potential applications in industry and technology [1–5]. TiO 2 is an n-type wide band-gap oxide semic...

Ngày tải lên : 20/03/2014, 13:08

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synthesis, growth mechanism and room-temperature blue luminescence emission of uniform wo3 nanosheets with w as starting material

... thickness and length are $80 and $500 nm, respectively. They exhibit blue luminescence emissions at $431, 486 and 497 nm, UV emissions at $362 and 398 nm. The blue emissions are resulted from the band–band ... WO 3 nanosheets. The blue emissions were attributed to arise from the band–band indirect transition of WO 3 . And a new growth mechanism for the as-synthesized WO 3 nanosh...

Ngày tải lên : 20/03/2014, 13:08

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Morphology and growth mechanism study of self assembled silicon nanowires synthesized by thermal evaporation

... of SiNW growth history related to the morphology and growth temperature. We show that the formation of SiNWs is indeed closely related to the amorphous SiO particles, and the growth and self-assembling ... ensures the continual phase separa- tion and precipitation and results in the formation of SiNWs made of a Si core and a SiO 2 sheath. The one-dimensional growth of Si...

Ngày tải lên : 16/03/2014, 15:06

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Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport

... such as nanotubes and nanowires, are ideal vehicles for testing and understanding fundamental concepts about dimensionality and size effect in, for example, optical, electrical, and mechanical properties. ... directed to synthesize these materials by various approaches, to understand their growth mechanism and to realize their controlled growth on planar substrates. Various ap...

Ngày tải lên : 16/03/2014, 15:19

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GROWTH PERFORMANCE AND SPERM QUALITY OF STRESS NEGATIVE PIÉTRAIN BOARS AND THEIR HYBRIDS WITH DUROC

... result in a report on Piétrain and hybrid boars. Table 1. Results of the effect of genetic group (PiDu 25, 50 75, PiCC and PiCT) and season on growth performance and semen quality Variable Genetic ... Piétrain, Du: Duroc, CC and CT: halothane genotypes. Contrary to growth traits, LD and LM were highest for PiCT and PiCC; PiDu25 was lowest, simultaneously BF was thinnes...

Ngày tải lên : 28/08/2013, 11:59

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Tài liệu Báo cáo khoa học: Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase noncatalytic C-lobe domain docx

... arborization patterns To quantify dendrite growth and branching, 15 neurons transfected with each construct were randomly chosen for each experiment, and EGFP ﬂuorescent images of their dendrites ... 1661 Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase no...

Ngày tải lên : 14/02/2014, 19:20

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Tài liệu Báo cáo khoa học: Crystal structure of the cambialistic superoxide dismutase from Aeropyrum pernix K1 – insights into the enzyme mechanism and stability pdf

... seven a-helices, a three-stranded antiparallel b-sheet and loops connecting these secondary structure elements. The con- tents of the a-helix and b-strand were 50% and 11%, respectively. The monomer ... substrate and the other to product inhibition by hydrogen peroxide. There are two mechanisms proposed for the reaction cycle of Mn ⁄ Fe-SOD: the 5-6-5 mechanism [27] and the associ...

Ngày tải lên : 14/02/2014, 22:20

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Tài liệu Báo cáo khoa học: Crystal structures of a bacterial 6-phosphogluconate dehydrogenase reveal aspects of speciﬁcity, mechanism and mode of inhibition by analogues of high-energy reaction intermediates pdf

... ⁄ 15.2 a Occupancy of the ligand. Fig. 2. Amino acid sequence and secondary structure of LlPDH. Arrows depict b strands, cylinders depict a helices and these are labelled b1–b10 and a1–a21. The elements ... act- ing as a high-energy-state mimic. In our hands, TbPDH is unstable and has proven troublesome for crystallo- graphic studies to characterize ligand binding and inhibition;...

Ngày tải lên : 19/02/2014, 05:20

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Tài liệu Báo cáo khoa học: Synergistic activation of signalling to extracellular signal-regulated kinases 1 and 2 by epidermal growth factor and 4b-phorbol 12-myristate 13-acetate pptx

... ERK-PP concentration after stimulation with EGF and PMA together on the one hand, and the sum of the ERK-PP concentrations after stimulation with EGF and PMA separately on the other hand, was not constant, but increased ... NaCl/P i and washed Fig. 2. Biphasic ERK-PP time proﬁle induced by EGF or PMA alone and synergistic ERK phosphorylation induced by EGF and PMA together. Cells...

Ngày tải lên : 19/02/2014, 16:20

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