Báo cáo hóa học: " Boron and Nitrogen Doped Single walled Carbon Nanotubes as Possible Dilute Magnetic Semiconductors" doc

... NANO EXPRESS Boron and Nitrogen Doped Single walled Carbon Nanotubes as Possible Dilute Magnetic SemiconductorsFrank J. OwensReceived: 31 May 2007 ... the authors 2007Abstract The structure of single walled armchair and zig-zag carbon nanotubes having 70 atoms and two carbonsreplaced by boron or nitrogen is obtained at minium energyusing ... such as GaP, GaN, GaAs and ZnO when doped with Cu2+ and Mn2+are ferromagnetic [1–5]. An alternate approach todeveloping magnetic semiconductors might be to explorethe possibility of making single...

báo cáo hóa học:" MicroRNA and gene expression patterns in the differentiation of human embryonic stem cells" doc

... LEFTY1, and TDGF1, and 2 genes upregulated in EB: HAND1 and GATA5, and 1 gene upregulated in adult cells: NFIB. In addition, the levels of another hES cell marker Nanog was also measured. The ... lymphoblastoid cellline was used as the reference for the miRNA expressionarray assay. The test sample was labelled with Hy5 and thereference with Hy3. After labelling, the sample and the ... clustering of miRNAsFigure 1Unsupervised hierarchical clustering of miRNAs. The expression levels of miRNAs were presented as normalized cy5/cy3 ratios, upregulated miRNAs were shown as red and downregulated...

báo cáo hóa học: " Scoring and psychometric validation of the Perception of Anticoagulant Treatment Questionnaire (PACT-Q©)" doc

... Care and Public Health Research Institutes, University of Maastricht, Maastricht, the Netherlands, 2Department of Clinical Epidemiology and Medical Technology Assessment, Academic Hospital, Maastricht, ... Republic, Denmark, France, Germany, Italy, theNetherlands and Poland), North America (Canada and the United States) and Oceania (Australia and New Zea-land), with patients with DVT, AF or PE. All three ... score was thelowest for patients with an INR > 3, and significantlyincreased as INR decreased (scores ranging from 61 to 69).These results at M3 concerned only patients treated withVKA as...

báo cáo hóa học:" Microstructure and adhesion characteristics of a silver nanopaste screen-printed on Si substrate" docx

... methodwas adopted to measure the electrical resistivity. Theapparent density of the screen-printed Ag nanopastedepending on the sintering temperatures was calculatedfrom the precise volume and mass ... test. As the sintering temperature increasedfrom 150°C to 300°C, the apparent density and the adhesion increased by 22.7% and 43%, respectively. It isconfirmed that the printed Ag nanopaste ... to measure the adhesionof a printed film that has a weak and thin layer, and hence, this has been one of the key issues in this project.A scratch test is the most practical method for assessingthe...

báo cáo hóa học:" Microstructure and adhesion characteristics of a silver nanopaste screen-printed on Si substrate" doc

... nanopaste drastically changed from discrete and spherical Ag nanoparticles to continuous and con-solidated ones.Figure 5 plots the variation in the apparent density ofthe Ag nanopaste as a ... methodwas adopted to measure the electrical resistivity. Theapparent density of the screen-printed Ag nanopastedepending on the sintering temperatures was calculatedfrom the precise volume and mass ... test. As the sintering temperature increasedfrom 150°C to 300°C, the apparent density and the adhesion increased by 22.7% and 43%, respectively. It isconfirmed that the printed Ag nanopaste...

Báo cáo hóa học: " Synthesis and Photoluminescence Property of Silicon Carbide Nanowires Via Carbothermic Reduction of Silica" doc

... important and has a substantial inﬂuenceon the rate of reaction and the morphology or size ofsynthesized SiC. At present, carbon source such as active carbon, carbon nanoparticles and carbon nanotubes ... reactionof SiO2 and carbon to generate SiO gas and CO gasaccording to reaction (2).SiO2ðs) + C (s) ! SiO (g) + CO (g) ð2ÞThen, the generated gaseous SiO reacts with C and COto produce ... reaction (3) with gas–solid interaction butthe growth of SiC NWs is believed to undergo a gas–gasinteraction in reaction (4). As the reactions went on, more and more silicon and carbon atoms were...

Báo cáo hóa học: " In situ Polymerization of Multi-Walled Carbon Nanotube/Nylon-6 Nanocomposites and Their Electrospun Nanoﬁbers" pot

... benzoic acid,P-MWNTs, and PPA were placed in resin ﬂask equippedwith a mechanical stirrer, and nitrogen inlet and outlet. Themixture was heated to 130 °C for 3 h, and P2O5was thenadded into ... (99% purity) and 6-aminocaproic acid(6-amino hexanoic acid) (99% purity) were purchased fromAldrich and Sigma, respectively, and used as received.Extra pure formic acid was purchased from Duksanchemicals. ... theP-MWNT/nylon-6 (Fig. 4a) and the F-MWNT/nylon-6(Fig. 4b) as a function of frequency. The g*s at low fre-quencies (\1 rad/s) increased as the / increased for boththe P-MWNT/nylon-6 and the F-MWNT/nylon-6....

Báo cáo hóa học: " Formation and Organization of Amino Terminated Self-assembled Layers on Si(001) Surface" docx

... science, and engineering. Molecular self-assem-bly systems lie at the interface of these disciplines and many self-assembling systems have been developed.Self-assembled monolayers (SAMs) are a class ... the overlayer can be reasonably assumed and thenthickness of the overlayer can be determined. Refractiveindices as 3.8650 for Si substrate, 1.4605 for the SiO2layer and 1.4600 for the TPDA ... instance, an assembly held together by hydrogenbonds may not be stable in hydrogen bonding solvents such as water and alcohols. On the other hand, complexes usingthe hydrophobic effect as their...

Báo cáo hóa học: "WEAK AND STRONG CONVERGENCE OF FINITE FAMILY WITH ERRORS OF NONEXPANSIVE NONSELF-MAPPINGS" docx

... MathematicalAnalysis and Applications 183 (1994), no. 1, 118–120.10 Weak and strong convergenceSince∞n=1γin<∞,foralli=1,2, , N,wehaveδx∗n→0asn→∞ and hence Sn,mx∗−x∗→0 as n→∞.Observethatan+m(t) ... {sn}such that snj→ 0 as j →∞, then sn→ 0 as n →∞.Lemma 2.2 (Xu [17]). Let p>1 and R>0 be two ﬁxed numbers and E a Banach space.Then E is uniformly convex if and only if there exists ... [18] introduced iterative schemes known as Mann iterative scheme with er rors and Ishikawa iterative scheme with errors. Takahashi and Tamura [14] introduced and stud-ied a generalization of Ishikawa...

Báo cáo hóa học: " Progressive and Error-Resilient Transmission Strategies for VLC Encoded Signals over Noisy Channels" docx

... networks. She hasserved as an Associat Editor for the IEEE Transactions on ImageProcessing (2000–2003). She is currently serving as the AssociatEditor for the IEEE Transactions on Circuits and Systems ... the VLC. For the low pass band, a Hu-Tucker code is chosen for the reasons exposed in Section 5.For this subband, it appears that the Hu-Tucker code has thesame edl as the Huﬀman code. However, ... NJ, USA, as a VisitingScientist. Her research interests are in signal and image process-ing, video coding, and joint source and channel coding for videotransmission over the Internet and over...

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