Báo cáo hóa học: " NH4+ directed assembly of zinc oxide micro-tubes from nanoflakes" docx

... salts C (NH 4 ) 2 CO 3 /C Zn 2+ Zn(CH 3 COO) 2 ·2H 2 O ZnSO 4 ·7H 2 O 3.6:1.0 Micro-tubes Micro-tubes 3.2:1.0 Micro-tubes Micro-tubes 2.8:1.0 Micro-tubes Micro-tubes 2.4:1.0 Micro-tubes Micro-tubes 2.0:1.0 Micro-tubes Micro-tubes 1.6:1.0 Irregular ... 6:491 http://www.nanoscalereslett.com/content/6/1/491 Page 6 of 10 NANO EXPRESS Open Access NH 4 + directed assembly of zinc...

Ngày tải lên: 21/06/2014, 01:20

... electronic structure: In the ARPES data of Fig. 2, dim replica of the original h-BN bands are visible, shifted by ca. 0.56 A ˚ –1 . These so-called umklapp bands come from the new periodicity of five h-BN lattice ... visible in STM images of the h-BN phase. (The image was taken with a bias voltage of V B = 1.8 V and a set tunneling current of I T = 1 nA.) The corrugation in STM i...

Ngày tải lên: 22/06/2014, 22:20

... char- acteristic of the replicase gene of viruses in 7 of the 8 genera of the Tombusviridae [24]. This division of the rep- licase of the Tombusviridae by a termination codon is thought to be part of a translational ... support value of 100) with the single member of the genus Avenavirus, OCSV (Figure 5). Addi- tionally, the presence of an amber stop codon (nt position 123...

Ngày tải lên: 20/06/2014, 01:20

... study, out of 420 organ samples tested, 75% of spleen, 68.3% of bone marrow, 70% of thymus, 53.3% of liver, 46.7% of duodenum, 66.7% of ovary and 48.3% of oviduct tested were positive for CAV DNA. ... majority of the hens (96.15%) tested for CAV antibodies suggesting high level of occur- rence of vertical transmission of viral DNA to the progeny. The detection of CAV...

Ngày tải lên: 20/06/2014, 01:20

... transcendental meromorphic function of finite order in C, and have no simple zero, then f’ (z) assumes every nonzero finite value infinitely often. 3 Proof of the results Proof of Theorem 1.5 Suppose that F is ... contradiction. The proof of Theorem 1.5 is complete. Proof of Theorem 1.6 Set F ∗ = { f 2 2 |f ∈ F} . Noting that all zeros of g ∈ F ∗ have multiplicities at least 4 and...

Ngày tải lên: 20/06/2014, 22:20

... thickness) of emission, both from Si- ncs around 750 nm, and from Er ions around 1.5 μm (see inset), as a function of the annealing temperature (T a ). The influence of T a on the agglomeration of Si excess ... in Figure 1. The values of Si excess were determined by measure- ment of the ratios of the atomic concentration of Si and O(x = [O]/[Si]), that were deduced from...

Ngày tải lên: 21/06/2014, 03:20

... in different strains of Shewanella, suggest- ing that the insert from metagenome could have been derived from a strain of Shewanella sp. Majority of Shewa- nella sp. a re of marine origin (Fredrickson ... Microbial alkaline proteases: from a bioindustrial viewpoint. Biotechnol Adv 17:561–594 Laemmli UK (1970) Cleavage of structural proteins during the assembly of the head...

Ngày tải lên: 21/06/2014, 05:20

... NWs. Keywords Zinc oxide Á Cadmium oxide Á Nanowires Á Composites Á Optical absorbance Introduction Zinc oxide (ZnO) is one of the most important materials for the optoelectronic applications because of ... from the ZnO NW–CdO composite structure (Fig. 3b) is similar like ZnO NW sample and showed Raman peaks only from ZnO and do not show any CdO-related Raman peak. The assig...

Ngày tải lên: 22/06/2014, 00:20

... discovered, which arise from the electron deficiency of this element. Moreover, boron has a special place among the elements of the periodic table because of the wide variety of crystalline structure forms, ... properties of two unusual boron clusters obtained by fusion of borozene rings have been studied by means of first principles calculations based on the generalized-gradien...

Ngày tải lên: 22/06/2014, 00:20

... Particle size of fly ash with milling time (in hours) Fig. 2 Variation of Specific surface area of fly ash with milling time (in hours) Table 3 Surface energy and work of adhesion of fresh as well ... overall composition of fly ash obtained for this study consists of major proportion of SiO 2 ,Al 2 O 3 and Fe 2 O 3 , which seems up to 97.42%. More over the percentage of calcium...

Ngày tải lên: 22/06/2014, 18:20