Báo cáo hóa học: " Synthesis of High Coercivity Core–Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties" pot

... fabrication of such a one-dimen- sional system namely Ni @ Co nanorods, which is essentially a core–shell architecture (Ni as core and Co as shell) and studies on their structural and magnetic properties. Experimental Alumina ... preparation of one-dimensional structures with very high purity and control [2]. Controlled synthesis of smart nanostructures based on...

Ngày tải lên: 22/06/2014, 00:20

... coefficients of electron and hole. From the energy levels shown in Fig. 3 [16–18], the expansion probability of electron is bigger than that of hole because of the lower barriers of electron according ... quan- tum yield of 70% were obtained by the ‘‘successive ion layer adsorption and reaction’’ technology in solution. The thickness of the CdSe shell was exactly controlled....

Ngày tải lên: 21/06/2014, 17:20

... a function of O 2 concentration. b Typical response curves to various O 2 concentrations 356 Nanoscale Res Lett (2010) 5:353–359 123 scanning electron microscopy (SEM) and high- resolution transmission ... the realization of chemical sensors based on single ZnO nanorods [14–17], there still remain many aspects that should be overcome before their actual application. Firstly, th...

Ngày tải lên: 22/06/2014, 00:20

... N. Willson Jr., “Conjugate gradient method for adaptive direction -of- arrival estimation of coherent sig- nals,” in Proceedings of IEEE International Conference on Acous- tics, Speech, and Signal ... Section 4. After simulations with comparison of the new algorithm to the MUSIC, ESPRIT, and AV -based algorithms in Section 5, a few concluding remarks are drawn in Section 6. 2. DA...

Ngày tải lên: 22/06/2014, 19:20

... state of the technology in order to over- come some limitations on storage, transmission bandwidth, and transmission time, the images must be compressed before their storage and transmission and ... p ir of (19) somewhat absorb the energy of the terms eliminated by truncation of (16). In this paper, several tens of thousands of IBVs were investigated and several thousa...

Ngày tải lên: 21/06/2014, 05:20

... ventric- ular contraction (PVC), fusion of ventricular and normal beat (FUSION), atrial premature contraction (APC), paced beat (PACE), ventricular flutter wave (FLWAV), and fusion of paced and normal ... a multilayer perceptron: forward propagation of function signals and backpropagation of error signals [20]. for that class and a 0 for the other classes [21]. The number of...

Ngày tải lên: 21/06/2014, 22:20

... related implementation issues, and the conclusion is provided in Section 7. 2. System Model In the considered framework, a set of users consist of the nodes in the network. Each node can perform a set of actions: ... user cooperation stimulating strategy among rational users. The strategy is based on cooperative game theory and enacted in the context of cooperative relay netwo...

Ngày tải lên: 21/06/2014, 23:20

... cytometry of transduction by retrovirus following concentration using different numbers of rounds of centrifugation. 1 μL of retrovirus was added for each transduction. B. Titration of concentrated ... collections began on day 3 and continued on to day 7. We observed that transduction efficiency varied little over this period, with the exception of day 3, on which transduc...

Ngày tải lên: 20/06/2014, 04:20

... being economical, this synthetic method could be utilized for preparation of the UCNPs on a large scale. Introduction The synthesis and spectroscopy of NaYF 4 :Yb 3+ ,Er 3+ upconversion nanoparticles ... Cu Ka radiation ( l = 1.5418 Å). The low- and high- resolution transmission electron microscopy (HRTEM) was per- formed on a JEOL JEM-3010 electron microscope oper- ated at 300...

Ngày tải lên: 20/06/2014, 22:20

... combustion. J Membrane Sci 1986, 29:69-77. 3. Bhide BD, Stern SA: A new evaluation of membrane processes for the oxygen-enrichment of air. I. Identification of optimum operating conditions and process ... suspensions of template-removed zeolite nanocrystals. Chem Commun 2000, 2333-2334. 16. He L, Li D, Dong DH, Yao JF, Huang Y, Wang HT: Effects of polymerization conditions on pr...

Ngày tải lên: 20/06/2014, 23:20