Báo cáo hóa học: " Record Endurance for Single-Walled Carbon Nanotube–Based Memory Cell" pot

... (2005) Nanoscale Res Lett (2010) 5:1852–1855 1855 123 NANO EXPRESS Record Endurance for Single-Walled Carbon Nanotube–Based Memory Cell A. Di Bartolomeo • Y. Yang • M. B. M. Rinzan • A. K. Boyd • P. ... reported for SWCNT memory is 1.8 9 10 4 cycles [22] before device failure. Our devices showed remarkable endurance beyond 10 5 cycles in air, which can be considered as a b...

Ngày tải lên: 21/06/2014, 08:20

... suitable values for each signal waveform and compared the analysis methods with the most suitable segmental SNR. For the case of white Gaussian noise, we use | ˆ D(k)| that is constant for k, because ... analysis was performed on a waveform composed of four sinusoidal waves (s ee Table 1). Figure 11 shows the resulting waveform, and Figure 12 shows the frequency spectra of this waveform...

Ngày tải lên: 20/06/2014, 22:20

... Find necessary and sufficient conditions for (1.3) to hold for all n on- negative sequences {a n } ∞ n=1 for as general kernels as possible. Remark 5.2. For the case v n = 1, n = 1,2, Proposition ... Assume that (3.18) holds and for fixed N ∈ Z + apply the following test se- quence: a ∗ k = ⎧ ⎪ ⎨ ⎪ ⎩ V −((1+ps)/p) N v 1−p  k for k = 1, ,N, V −((1+ps)/p) k v 1−p  k for k = N +1,...

Ngày tải lên: 22/06/2014, 21:20

... = ∞  j=0 ε j y ( j) k ,0≤ k ≤ N, (3.5) uniformly for 0 ≤ k ≤ N,wherey (0) k and y ( j) k are the solutions of (2.2)and(2.4), respectively. More precisely, for all n ≥ 0 and all 0 ≤ k ≤ N,      y k (ε) ... 2,thenwe analyze the formal expansions obtained in [12]. 3.1. Perturbation method. Using the transformation z k = y N−k ,0≤ k ≤ N, (3.2) problem (3.1) is brought in the form (1.1)-...

Ngày tải lên: 22/06/2014, 22:20

... performance than system 2 un- der this condition. Therefore, system 1 has higher potential- ity to reduce its transmit power to improve the performance of system 2, while keeping its own performance ... be different for compensation. Basically, DS UWB outperforms MB-OFDM UWB with the same SINR, λ i for DS UWB is se- lected larger (see detailed discussion in Section 4.4). From (7), (8), and...

Ngày tải lên: 22/06/2014, 22:20

... comprises four randomly generated functions based on SEK: 00 for hash function, 01 for 4 bits left shift,1 0for no operation,and1 1for4 bits right shift. The key version included in a key change ... efficiency is superior to existing signature schemes for signing the broadcast access key (BAK). For symmetric key encryption, we use IDEA and MD5 [13] for message integrity. Prior to ini...

Ngày tải lên: 22/06/2014, 22:20

... coincidence theory does reduce to that for fixed points (see, e.g., [1]). In order to obtain the next result for fixed points as a consequence of Theorem 2.1, the ability to deform only one of the maps is ... 0 and hence f is deformable to be root-free by Theorem 2.5. COINCIDENCE THEORY FOR SPACES WHICH FIBER OVER A NILMANIFOLD PETER WONG Received 20 August 2003 and in revised form 9 Febr...

Ngày tải lên: 23/06/2014, 00:20

... a new strategy for the synthesis of CNT-based nanohybrids. Abbreviations CNT: carbon nanotube; DMF: dimethylformamide; EDX: energy dispersive X-ray spectrum; FT-IR: Fourier transform infrared; ... conical carbon nanotubes prepared by microwave plasma enhanced CVD process. Nanoscale Res Lett 2008, 3:25. 5. Ajayan PM, Stephan O, Colliex C, Trauth D: Aligned carbon nanotube arrays formed...

Ngày tải lên: 21/06/2014, 05:20

... angle- bending potential exists at the molecular/continuum interface. Such an angle-bending potential must be considered in molecular dynamics simulations because it affects the atomic forces of carbon ... external force applied on the atoms. The external force can be due to the gravity of the metal paddle. E is the potential energy of the tubes in the molecular model; E virtual is the pote...

Ngày tải lên: 22/06/2014, 22:20