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Threading Performance of Different Coatings for High Speed Steel Tapping
(MDPI, 2020-05-10)
Threading holes using tapping tools is a widely used machining operation in the industry. This manufacturing process involves a great tool immersion in the part, which involves both friction and cutting. This makes the use ...
The Dynamics of Digits: Calculating Pi with Galperin’s Billiards
(MDPI, 2020-04-02)
In Galperin billiards, two balls colliding with a hard wall form an analog calculator for the digits of the number π . This classical, one-dimensional three-body system (counting the hard wall) calculates the digits of π ...
Long-term assessment of the thermal stability of sodium nitrate-urea eutectic phase change material
(Elsevier, 2021-09-15)
The eutectic mixture formed by urea and sodium nitrate can be an interesting candidate for use as a phase change material for thermal energy storage in space heating and domestic hot water applications. It shows a melting ...
Planar refraction and lensing of highly confined polaritons in anisotropic media
(Nature, 2021-07-15)
Refraction between isotropic media is characterized by light bending towards the normal to the boundary when passing from a low- to a high-refractive-index medium. However, refraction between anisotropic media is a more ...
How Aromatic Are Molecular Nanorings? The Case of a Six-Porphyrin Nanoring**
(Wiley, 2021-11-02)
Large conjugated rings with persistent currents are novel promising structures in molecular-scale electronics. A six-porphyrin nanoring structure that allegedly sustained an aromatic ring current involving 78 pi electrons ...
Assessing Autophagy in Microglia: A Two-Step Model to Determine Autophagosome Formation, Degradation, and Net Turnover
(Frontiers Media, 2021-01-29)
Autophagy is a complex process that encompasses the enclosure of cytoplasmic debris or dysfunctional organelles in membranous vesicles, the autophagosomes, for their elimination in the lysosomes. Autophagy is increasingly ...
A RE Methodology to achieve Accurate Polygon Models and NURBS Surfaces by Applying Different Data Processing Techniques
(MDPI, 2020-11-12)
The scope of this work is to present a reverse engineering (RE) methodology to achieve accurate polygon models for 3D printing or additive manufacturing (AM) applications, as well as NURBS (Non-Uniform Rational B-Splines) ...
Interactive effects of discharge reduction and fine sediments on stream biofilm metabolism
(James N. McNair, 2021)
Discharge reduction, as caused by water diversion for hydropower, and fine sediments deposition, are prevalent stressors that may affect multiple ecosystem functions in streams. Periphytic biofilms play a key role in stream ...
Convergences between the Social and Solidarity Economy and Sustainable Development Goals: Case Study in the Basque Country
(MDPI, 2020-07-06)
This article analyzes the potential of the social and solidarity economy (SSE) to foster the sustainable development goals (SDGs). Local public policies play an important role in supporting both the SSE and SDGs. We select ...
A probabilistic model and capturing device for remote simultaneous estimation of spectral emissivity and temperature of hot emissive materials
(Institute of Electrical and Electronics Engineers, 2021-07-12)
[EN] Estimating the temperature of hot emissive samples (e.g. liquid slag) in the context of harsh
industrial environments such as steelmaking plants is a crucial yet challenging task, which is typically
addressed by ...