... dependence of the loss factor of S35/wax compositions Nanoscale Res Lett (2009) 4:1153–1158 1157 123 NANO EXPRESS Enhanced Microwave Absorption Properties of Intrinsically Core/shell Structured ... broader frequency range microwave absorption because of their steady dielectric loss ability in this range. It is evident that the excellent microwave absorption proper...
Ngày tải lên: 21/06/2014, 20:20
... NH 3 plasma for 10 min at input microwave powers of 300–450 W, operating pressure of 5 Torr and with NH 3 flow rate of 40 sccm. CNT films were deposited at different microwave power varying from 300 to ... due to various geometries of the emitters. Also, work function of each emitter is not necessarily same. This makes the exact analysis of field emission characteristics of CNT...
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: " Excellent Field Emission Properties of Short Conical Carbon Nanotubes Prepared by Microwave Plasma Enhanced CVD Process" pot
... NH 3 plasma for 10 min at input microwave powers of 300–450 W, operating pressure of 5 Torr and with NH 3 flow rate of 40 sccm. CNT films were deposited at different microwave power varying from 300 to ... characteristics than that of sample 4 [32], which could be due to screening effect. This suggests that sample 4 has the optimum combination of length and density of conical pe...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: " Synthesis and magnetic properties of Zr doped ZnO Nanoparticles" docx
... magnetic properties. Magnetization curves as a function of applied magnetic field (M-H)at RT of samples are revealed in Figure 6, where the con- tributions of the paramagnetism (PM) signals of the samples ... curves at the dc field of 100 Oe in the tem- perature range of 10 to 300 K are measured on these samples, it’s given the typical one of Zn 0.995 Zr 0.005 O NPs bec ause o...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite. XPS results provide the additional evidence for the successful doping of ... Daniela Predoi 1* Abstract Synthesis of nanosized particle of Ag-doped hydroxyapatite with anti bacterial properties is in the great interest in the development of new biomedi...
Ngày tải lên: 20/06/2014, 23:20
Báo cáo hóa học: "Fabrication and magnetic properties of granular Co/porous InP nanocomposite materials" ppt
... over pore sidewall surface of InP template, which was different from that of ceramic template and may open up new branch of fabrication of nanocomposites. The mag netism of such Co/InP nanocomposites ... (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China Full list of author information is available at t...
Ngày tải lên: 21/06/2014, 04:20
Báo cáo hóa học: " Electronic and magnetic properties of SnO2/CrO2 thin superlattices" doc
... 6:146 http://www.nanoscalereslett.com/content/6/1/146 Page 3 of 5 ground state, the total magnetic moment gives a value of 2 μ B per chromium atom. Figure 2a,b presents the total den- sity of states (TDOS) and the projected density of states (PDOS), ... moment of 2 μ B per chromium atom, which is inde- pendent of the number of monolayers. As the FM rutile- CrO 2 is unstable at a...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: " Tuning the electronic properties of boron nitride nanotube by mechanical uni-axial deformation: a DFT study" docx
... electronic structures of BNNTs. Fig- ure 7a,b,c,d,e shows the PDOS of s and p orbitals of B68 and N35 atoms as well as the summation of these orbitals for the (8,0) BNNT. At strain of 0, there is no contribution ... armchair BNNTs. Although the stress-strain profiles indicate the mechanical properties of these two BNNTs are very similar, the variations of electronic propertie...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: " Research Article Some Properties of Certain Class of Integral Operators" pot
... properly cited. The main object of this paper is to derive some inequality properties and convolution properties of certain class of integral operators defined on the space of meromorphic functions. 1. ... Bu du z −→ − 1 . 2.13 This evidently completes the proof of Theorem 2.1. In view of 1.19, by similarly applying the method of proof of Theorem 2.1,wegetthe foll...
Ngày tải lên: 21/06/2014, 06:20
Báo cáo hóa học: " Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays" pdf
... place of the PL spectrum, resulting in the ‘‘red-shift’’ observed. These porous SiNWs combine the physical properties of SiNWs and PS and could lead to opportunities for new generation of nanoscale ... the optical properties of the porous SiNWs. Figure 6a and b display the PL spectrums of the porous SiNWs with different H 2 O 2 concentrations and etching Fig. 2 SEM and TEM image...
Ngày tải lên: 21/06/2014, 08:20