Báo cáo hóa học: " Room-temperature nonequilibrium growth of controllable ZnO nanorod arrays" ppt

... the guarantee of a supersaturated medium for the crystalliza- tion because ZnO nanorods cannot grow well with the low concentration of Zn(OH) 4 2- [33]. Under the best condition for the growth of ZnO nanorod ... 6:477 http://www.nanoscalereslett.com/content/6/1/477 Page 8 of 11 NANO EXPRESS Open Access Room-temperature nonequilibrium growth of controllable ZnO nan...

Ngày tải lên: 21/06/2014, 01:20

... to reveal the growth process of metal tube, showing that the metal tube grows quasi-radially on the wall of Si nanowire. The quasi-r adial growth of metal enables the fabrication of thickness-defined ... less because of the consumption of the top/ middle part during the depo sition, thus resulting in a thick top/middle part and a thin root part of the Au tubes. The quasi-rad...

Ngày tải lên: 21/06/2014, 05:20

... by the growth of CNTs on all the surfaces of Si wafers, we conducted the ALD deposition of Fe 2 O 3 catalyst on the quartz fiber with a diameter of about 10 lm and realized the synthesis of uniform ... synthesis of aligned CNTs. The temperature of the reactor increased to 750°C under the protection of Ar and H 2 .C 2 H 4 together with CO 2 was then introduced to realize the...

Ngày tải lên: 21/06/2014, 17:20

... obtained using sublimation of NH 4 Cl in a gas flow of NH 3 . During oxidation of In under a flow of O 2 the transfer of In into the gas stream is inhibited by the formation of In 2 O 3 around the In ... heated up in a flow of N 2 :NH 3 it leads to the formation of AlN around the source of Al which in turn inhibits the transfer of Al into the gas stream and conse- quently the...

Ngày tải lên: 22/06/2014, 01:20

... component of the extensor mechanism of the knee [23]. Therefore, the perceived role of the patella in knee function has profoundly influ- enced the preferred treatment of injuries to the PPT complex. ... assistant professor in the Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China. Peng Zhang is an Assistant Professor and Direc...

Ngày tải lên: 20/06/2014, 04:20

... BeO, in which the valence band maximum of BeO is of lower energy than that of ZnO, while the conduction band minimum of BeO is of higher energy than that of ZnO [32]. In such case, a potential well ... results disclose the growth behaviors of the ZnO/ BeO nanocable. Furthermore, incorporation of BeO shell onto ZnO core resulted in distinct improvement of optical prop...

Ngày tải lên: 21/06/2014, 00:20

... conductivities of nanofluids The effects of both temperature and mass fraction of the nanoparticles on the viscosities of the nanofluids were investigated. Figure 5 shows the results of viscosity ... qC b Figure 6 Thermal conductivity of nanofluids: (a) Variation of thermal conductivity of nanofluids at 25°C with mass fraction of nanoparticles; (b) variation of thermal con...

Ngày tải lên: 21/06/2014, 03:20

... eigenfunctions of the original boundary value problems 1–9 to eigenfunctions of the corresponding transformed boundary value problems. In particular, if λ 1 , ,λ slm1 are the eigenvalues of one of ... polynomial, in λ,oforderp  1  s  r. Note that, none of the roots of this polynomial are given by d k , k  1, ,s or σ j , j  1, ,psince, from Figures 1 to 3, it is easy to...

Ngày tải lên: 21/06/2014, 07:20

... following lemma is essentially the same as that of the Theorem 2.20 of 4; so we omit its proof. 8 Journal of Inequalities and Applications Proof of Theorem 1.2. Assume the inequality 1.7.LetQ 1 and ... R 3, Theorem 2.1 of Chapter 6. However, it is somewhat more complicated, and moreover, the details of the proof run off our aim of the paper. So we decide to omit the proof...

Ngày tải lên: 21/06/2014, 18:20

... top of the outer tube symmetrically. A constant voltage of 16 V with a time interval of 1 ns is applied on those two electrodes alternatively. Initially, the inner tube is at the center of the outer ... placed at the center of the outer tube. In this case, the natural oscillating frequency of the oscillator is 6.75 GHz. After every four cycles, a voltage of 48 V with a duration...

Ngày tải lên: 22/06/2014, 01:20