Báo cáo hóa học: " Controlled Growth of Carbon Spheres Through the Mg-Reduction Route" pdf

... and to the finite dimensions of the AFM tip. In 50% of the cases, neither SEM nor AFM analysis of the patterned mask showed any surface contamination before the growth. However, from the growth ... for the selective area growth of GaN NCs. Once the process window for the ordered growth of GaN NCs by PA-MBE was identified, the successful selective grow...

Ngày tải lên: 20/06/2014, 04:20

... factors such as the morphology, the chirality, the diameter and length of the tubes, the number of structural defects, and the specific surface area [19, 20]. Thus, a description of the thermal conduction ... changes with the temperature were observed. The results indicate that MWNTs are the most effective carbon nanofillers to improve the K of liquid resin...

Ngày tải lên: 20/06/2014, 23:20

... the mask or inside the holes, due to the high aspect ratio of the patterns and to the finite dimensions of the AFM tip. In 50% of the cases, neither SEM nor AFM analysis of the patterned mask ... for the selective area growth of G aN NCs. Once the process window for the ordered growth of GaN NCs by PA-MBE was identified, the successful selective growth...

Ngày tải lên: 20/06/2014, 23:20

... TEM image of the saw-like edged NR. (b-d) Cross-sectional HRTEM images of the three regions (the end part of the saw-like edge, the middle part of the saw-like edge, and the part of the basal nanowire) ... This was then observed by TEM. Figure 4a shows a TEM cross-section image of the as-grown Si NRs. The right side of the TEM image in Figure 4a is the par...

Ngày tải lên: 21/06/2014, 01:20

... contributions MA-H, with the help of JLC-K and SG perform the UHV magnetrón growth of the ZnO, MA-H, and JLCK performed the ultrathin Au metal growth, RA carried out the mask design, spinning ... film to form the seed particles [8]. In this way, a homogeneous whisker width distribution is obtained, the mean size of which could be controlled by the thickness of th...

Ngày tải lên: 21/06/2014, 02:20

... distributions of carbon black nanofluids. The particle size of the carbon black nanofluid is about 50 to 500 nm and has a mean size of 190 nm. The agglomeration of the nanoparticles and the hydrody- namic ... temperatures. Thermal conductivity of carbon black nanofluids Figure 8 shows the thermal conductivity of carbon blac k nanofluids for different concentrat...

Ngày tải lên: 21/06/2014, 02:20

... small, the selective growth is suppressed. On the oth er hand, it’ s difficult to complete the selective growth if the growth area is too large. The critical growth area might be dependent on the ... to other growth techniques, the selective growth of GaN by molecular beam epitaxy (MBE) is relative difficult [11 ,12]. The substrate also impacts on the epitaxial...

Ngày tải lên: 21/06/2014, 05:20

... know the sensitivity of the mass sen- sor. The sensitivity of the sensor is defined as the ratio of the variation of the frequency shift to the variation of the attached mass. Figure 5 shows the ... with that of the sensor. In addition, the location of attached mass can influence on the changes in frequency of the mass sensor. Figure 4 illustrates th...

Ngày tải lên: 21/06/2014, 07:20

... structure transition from the tube to the wire at the growth front [18]. But in the later case, there is little report on the growth mechanism of the initial growth stage of the single-crystalline ... from the deformation induced by the ultrasonic treatment used to prepare the TEM sample [19]. We can deduce that the darker part at the ends of the nanowire...

Ngày tải lên: 21/06/2014, 18:20

... of residual hepatic VX2 carcinoma following RFA. The oval-shaped area of “adbe” represents the whole tumor. The line “ab” is the minor axis of the tumor and the line “de” is the major axis. The ... was made. The tumor size was measured and the tumor was ablated. The tumor center was also designated as the RFA center. The measured minor axis of the tumor was...

Ngày tải lên: 18/06/2014, 16:20