Báo cáo hóa học: " High Methanol Oxidation Activity of Well-Dispersed Pt Nanoparticles on Carbon Nanotubes Using Nitrogen Doping" docx

... oxidation activity performed by N-incorporation technique is highly promising in energy-generation applications. Keywords Methanol oxidation activity Á N-doped carbon nanotubes Á Energy-generation ... 1s (b) Pt 4f (c) N 1s Fig. 3 XPS spectrum of Pt NPs immobilized on N-doped CNTs and undoped ones 70 Nanoscale Res Lett (2010) 5:68–73 123 NANO EXPRESS High Methanol Ox...

Ngày tải lên: 22/06/2014, 00:20

... injection of cancer cells, and mice were weighed at that time. The greatest Effects of high dose concentration of ascorbic acid on mouse model experimentsFigure 2 Effects of high dose concentration ... Past research on the anticancer effects of ascorbic acid had only focused on inhibition of the expression of angiogenesis related genes. Data on administration time an...

Ngày tải lên: 18/06/2014, 15:20

... calculated coefficients of variation (CV) of EMG acti- vation and joint angle profiles using Equation (2) to quantify variability of the different conditions [36]. where N is the number of intervals over ... performed cross-correlation analyses using Equation (1) to compare averaged electromyographic waveforms and kinematic profiles of control subjects with the profiles of eac...

Ngày tải lên: 19/06/2014, 10:20

... and nanotubes (NTs) [7]. Nanoribbons or thin silicon on insulators have many advantages, such as low leakage and a high on/ off current ratio, I ON /I OFF , which leads to low power con- sumption ... elevated temperatures of 125 and 150°C. Conclusions In summary, we report the constant temperature operation of nanoribbon FETs in the temperature range of 25–150°C. In order to co...

Ngày tải lên: 21/06/2014, 08:20

... MPa or higher. It was con®rmed that the excitation spectra of BIPM and FITC do not change under these high pressures. Hydrogen±tritium exchange under high pressure Effects of high pressure on irreversible ... precise nature of the interrela- tionship between these pressure-induced changes and enzyme activity is of concern. General features of pressure effects on protein...

Ngày tải lên: 24/03/2014, 00:21

... Kong. 2 Department of Social Work, Hong Kong Baptist University, Hong Kong. 3 Department of Community Medicine, The University of Hong Kong, Pokfulam, Hong Kong. Authors’ contributions WSW, STMC and ... relationships between pain, * Correspondence: wswong@cityu.edu.hk 1 Department of Applied Social Studies, City University of Hong Kong, Kowloon Tong, Hong Kong Wong et al. Health and...

Ngày tải lên: 18/06/2014, 19:20

... the bone and soft-tissue pixels adjacent to the edge of the implants were counted. Osseointegration was de fined as bone-to-imp lant con- tact and calculated as the ratio of the number of bone pixels ... net osseointegration and presence of bone for each section level. Multifactorial two-way Analyses of Variance (ANOVA) were performed on mean osseointegration (or presence of bon...

Ngày tải lên: 20/06/2014, 04:20

... and Z. Xu, “Bounded continuous nonoscillatory solutions of second-order n onlinear difference equations with continuous variable,” Journal of Mathematical Analysis and Applications, vol. 333, no. ... function of a continuous variable 1. These equations appear as natural descriptions of observed evolution phenomena in many branches of the natural sciences see, e.g., 2, 3. The bo...

Ngày tải lên: 21/06/2014, 20:20

... position determination mechanism tuning, artefacts selection evaluation tuning, etc.) online at aPDPTServer. The created PDPT Framework is based on a model of location-aware enhancement. This concept ... allowed on existing mobile device where the operation system exists. Only a software solution added on top of the OS can achieve the objective. A combination of a predicted user p...

Ngày tải lên: 21/06/2014, 22:20

... observation suggests that the adsorption of ionized oxygen species on the surface of ZnO nanowires and the re-establishment of a depletion region is slower than the process of desorption. When ... [24–27]. The reduction of the depletion region width as a result of desorption of negative species from ZnO surface was suggested to explain the increase of the excitonic emission...

Ngày tải lên: 22/06/2014, 00:20