The conductances of TiC-GNR interfaces are normalized by ribbon width and are found to converge. The converged value is used to estimate the interface resistance of multiwalled carbon nanotubes (MWCNTs) grown on metal catalyst support substrates and is found to be consistent in an order of magnitude sense with experimental results on MWCNT arrays. The results reveal that covalent bonds may be formed during CNT synthesis and quantify the resulting thermal impedance caused by phonon mismatch. (C) 2011 American Institute of Physics. [doi:10.1063/1.3556454]“
“Background: Consumption of fish and n-3 (omega-3) long-chain
polyunsaturated fatty acids (LCPUFAs) has been associated with reduced risk of coronary www.selleckchem.com/products/napabucasin.html artery disease (CAD) mortality.
Objective: The aim was to examine the relation between dietary intake of n-3 LCPUFAs or fish and risk of future coronary events or mortality ZD1839 clinical trial in patients with well-characterized CAD.
Design: This was a substudy of 2412 participants in the Western Norway B Vitamin Intervention Trial with a median follow-up time of 57 mo. Patients aged >18 y diagnosed with CAD (81% men) completed a food-frequency questionnaire at baseline, from which daily intakes of eicosapentaenoic, docosapentaenoic,
and docosahexaenoic acids as well as fish were estimated on the basis of diet and intakes of supplements including fish and cod liver oils. The main endpoint was a composite SN-38 order of coronary events, including coronary death, nonfatal acute myocardial infarction, and unstable angina pectoris.
Results: The mean (+/- SD) intakes of n-3 LCPUFAs in quartiles 1-4 were 0.58 +/- 0.29, 0.83 +/- 0.30, 1.36 +/- 0.44, and 2.64 +/- 1.18 g/d, respectively. We found no dose-response relation between quartiles of n-3 LCPUFAs (based on intake as percentage of total energy) or fish and coronary events or separate endpoints. A post hoc additive proportional hazards model showed a slightly increased risk of coronary events at an intake of n-3 LCPUFAs < approximate to 0.30 g/d.
Conclusion:
Among Norwegian patients with CAD consuming relatively high amounts of n-3 LCPUFAs and fish, there were no significant trends toward a reduced risk of coronary events or mortality with increasing intakes. This trial was registered at clinical-trials. gov as NCT00354081. Am J Clin Nutr 2010;92:244-51.”
“Polyvinylidene fluoride (PVDF)/multiwalled carbon nanotubes (MWCNTs) nanocomposites were prepared by solution blending method, and the melt viscoelastic behavior of the composites was studied. The results showed that the dispersion of MWCNTs in the matrix and the surface characteristic of MWCNTs had a profound influence on the melt rheological behaviors of the nanocomposites. Generally, the dynamic storage modulus (G’) of the nanocomposites with well dispersed MWCNTs was greatly improved.
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