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Now showing items 3331-3340 of 3805
In Vitro Degradation of PLLA/nHA Composite Scaffolds
(Wiley, 2013-11-08)
Porous Poly-L-lactide (PLLA) scaffolds and PLLA/nanohydroxyapatite
(nHA) composite scaffolds with interconnected
pore networks and a porosity of over 90% were
fabricated with lyophilization techniques. In this study, ...
Evaluation of efficiency and mechanical properties of Inconel 718 components built by wire and powder laser material deposition
(Emerald Publishing Limited, 2017-10-17)
PurposeThe purpose of this paper is to evaluate and compare powder and wire laser material deposition (LMD) processes.Design/methodology/approachIn the present paper, Inconel 718 tensile test probes were built layer by ...
Combined Mesoscale/Experimental Study of Selective Placement of Magnetic Nanoparticles in Diblock Copolymer Films via Solvent Vapor Annealing
(ACS Publications, 2016-03-16)
We present a combined theoretical/experimental study to investigate the effect of selective solvent vapor annealing treatment on the obtainment of highly ordered morphologies of symmetric poly(styrene-b-methyl methacrylate) ...
Liquefaction of Kraft Lignin at Atmospheric Pressure
(Tech Science Press, 2019)
[EN]Kraft lignin was liquefied using polyethylene glycol #400 (PEG) and
glycerol (G) in a weight ratio of 80/20 (w/w) and sulphuric acid (SA) as catalyst
under atmospheric pressure at 160ºC. The three independent variables: ...
Competition between stacked and hydrogen bonded structures of cytosine aggregates
(RSC, 2017)
The four bases of DNA constitute what is known as the “alphabet of life”. Their combination of proton-donor and acceptor groups and aromatic rings allows them to form stacking structures and at the same time establish ...
Interferometer with a driven trapped ion
(2018-10-18)
We propose an interferometric measurement of weak forces using a single ion subjected to designed time-dependent spin-dependent forces. Explicit expressions of the relation between the unknown force and the final populations ...
Internal characterization and hole formation mechanism in the laser percussion drilling process
(Elsevier, 2013-09-09)
Laser percussion drilling is increasing its relevance in many industrial applications, being used particularly in the aircraft industry in performing the micro-holes in nickel based alloys turbine blades for cooling, or ...
Lignin-ester derivatives as novel thermoplastic materials
(RSC, 2016)
[EN] Spruce and eucalyptus lignins isolated by an organosolv process and lauroyl chloride were used as raw material for the synthesis of lignin-ester derivatives. The obtained products presented new and interesting properties ...
Kernel density estimation in accelerators: Implementation and performance evaluation
(ACM, 2016-02-01)
Kernel density estimation (KDE) is a popular technique used to estimate the probability density function of a random variable. KDE is considered a fundamental data smoothing algorithm, and it is a common building block in ...