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A nonlocal elastic beam model is developed to investigate the small scale effects on the large-amplitude vibration analysis
of embedded multiwalled carbon nanotubes (MWCNTs) at an elevated temperature. The nested slender nanotubes are coupled with
each other through the van der Waals (vdW) interlayer interaction. The curvature-dependent vdW force employed incorporates
not only pairwise nearest-neighbor but also nonneighbor interactions between nested nanotubes. The incremental harmonic balance
method is adopted to analytically solve the nonlinear equations that are governed by the vibrations of nested nanotubes. The
influences of small scale parameter, geometrical parameters, temperature rise, and the elastic medium are fully examined. 相似文献
14.
Saeed Bahadorikhalili Samira Ansari Haleh Hamedifar Leila Ma'mani Mohsen Babaei Rahim Eqra Mohammad Mahdavi 《应用有机金属化学》2019,33(4)
In this paper, a novel catalyst is introduced based on the immobilization of palladium on modified magnetic graphene oxide nanoparticles. The catalyst is characterized by several methods, including transmission electron microscopy, scanning electron microscopy, X‐ray fluorescence, vibrating‐sample magnetometer, Fourier transform‐infrared and dynamic light scattering (DLS) analysis. The activity of the catalyst was investigated in the synthesis of 4(3H)‐quinazolinones via Pd‐catalyzed carbonylation‐cyclization of N‐(2‐bromoaryl) benzimidamides by Mo (CO)6. The Mo (CO)6 is used as a carbon monoxide source for performing the reaction under mild conditions. The catalyst showed good reusability, and no change in activity was observed after 10 cycles of recovery. 相似文献
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Qamrul Hasan Ansari Mahboubeh Rezaei 《Journal of Optimization Theory and Applications》2012,153(3):587-601
In this paper, we introduce the notion of invariant pseudolinearity for nondifferentiable and nonconvex functions by means
of Dini directional derivatives. We present some characterizations of invariant pseudolinear functions. Some characterizations
of the solution set of a nonconvex and nondifferentiable, but invariant, pseudolinear program are obtained. The results of
this paper extend various results for pseudolinear functions, pseudoinvex functions, and η-pseudolinear functions, and also for pseudoinvex programs, pseudolinear programs, and η-pseudolinear programs. 相似文献
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D. Kocheva G. Rainovski J. Jolie N. Pietralla A. Blazhev A. Astier R. Altenkirch S. Ansari Th. Braunroth M. L. Cortés A. Dewald F. Diel M. Djongolov C. Fransen K. Gladnishki A. Hennig V. Karayonchev J. M. Keatings E. Kluge J. Litzinger C. Müller-Gatermann P. Petkov M. Rudigier M. Scheck Ph. Scholz P. Spagnoletti M. Spieker C. Stahl R. Stegmann M. Stoyanova P. Thöle N. Warr V. Werner W. Witt D. Wölk K. O. Zell P. Van Isacker V. Yu. Ponomarev 《The European Physical Journal A - Hadrons and Nuclei》2017,53(9):175