We demonstrate how gold nanoparticle monolayers can be curled up into hollow scrolls that make it possible to extract both bending and stretching moduli from indentation by atomic force microscopy. We find a bending modulus that is 2 orders of magnitude larger than predicted by standard continuum elasticity, an enhancement we associate with nonlocal microstructural constraints. This finding ope...

Multiwavelength images from the far-UV (?0.15 ?m) to submillimeter of central region galaxy NGC 3351 are analyzed constrain its stellar populations and dust attenuation. Despite hosting a ?1 kpc circumnuclear starburst ring, deviates IRX–? relation, relation between infrared-to-UV luminosity ratio UV continuum slope ? that other galaxies follow. To understand reason for deviation, we leverage h...

The short working distance of compound microscope lenses in many cases prevents microelectrode penetrations of cells perpendicular to the cell surface. Bending electrodes very near their tips removes this constraint. A method is described for bending glass microelectrodes with a hot filament while their tips are immersed in a water drop. Immersion protects the fine electrode tips from the heat ...

Background. This study compared the cyclic fatigue resistance, bending resistance and cross-sectional areas of Reciproc Blue (RPC Blue), WaveOne Gold (WOG), and Genius File (GF) NiTi rotary systems. Methods. Forty RPC Blue R25 (25/.08), 40 WOG Primary (25/.07) and 40 GF (25/.04) files were used in the present study. Flexibility of the files was determined by 45° bending test. The instruments we...

Networked-microgrid (NMG) system has a much more complex structure with larger control difficulties and complicated dynamic behaviors. This paper firstly proposes layered distributed framework for NMG system, which is comprised of two layers: individual MG layer layer. The generates the voltage/frequency reference Particularly, to improve transient frequency response, each controller designed p...

Methylamine plays an important role in the global carbon and nitrogen budget; microorganisms that grow on reduced single carbon compounds, methylotrophs, serve as a major biological sink for methylamine in aerobic environments. Two non-orthologous, functionally degenerate routes for methylamine oxidation have been studied in methylotrophic Proteobacteria: Methylamine dehydrogenase and the N-met...

in this paper, the effect of polypropylene fibers added to concrete on strength and thermal resistance of high strength concrete has been investigated. therefore, five tests have been carried out to reach this goal which it includes; effect of weight percent of polypropylene fibers on mechanical properties of concrete, effect of fiber’s length on the strength of high strength concrete, effect o...

between people with different cultural background Bruno A. Sugiyama, Junia C. Anacleto, Sidney Fels and Helena M. Caseli Department of Computer Science, Federal University of São Carlos, São Carlos – SP, Brazil Department of Electrical and Computer Engineering, University of British Columbia, Vancouver – BC, Canada +55 (16) 3351-8615 {bruno_sugiyama, junia}@dc.ufscar.br, [email protected], hele...

statement of problem: resin composites are a common type of tooth coloured restorative materials. these materials are brittle and their major shortcomings are sensitivity to flaws and defects, low tensile strength, and susceptibility to catastrophic failure.the role of home bleaching agents on the fracture toughness of resin composites using four-point bending test is scanty. objectives: to com...

Computer simulations have been carried out with a model flagellum that can bend in three dimensions. A pattern of dynein activation in which regions of dynein activity propagate along each doublet, with a phase shift of approximately 1/9 wavelength between adjacent doublets, will produce a helical bending wave. This pattern can be termed "doublet metachronism." The simulations show that doublet...