Search
Now showing items 2231-2240 of 2620
Corrosion behavior of tantalum coatings on AISI 316L stainless steel substrate for bipolar plates of PEM fuel cells
(Elsevier, 2020-01-11)
Corrosion resistance of tantalum coatings 30 μm thick deposited by chemical vapor deposition on SS316L coupons has been evaluated by electrochemical impedance spectroscopy (EIS). To this end, anodic and cathodic operating ...
Anticipatory responsible innovation. Futures construction in the face of the techno-economic imperative
(Universidade Federal do Paraná, 2020)
[EN]The call for the development of more responsible research and innovation has increasingly permeated European Union research and development policies. Specifically, under the auspices of approaches such as “Responsible ...
Antioxidant activities and selenogene transcription in the european sea bass (Dicentrarchus labrax) liver depend, in a non-linear manner, on the Se/Hg molar tatio of the feeds
(Springer Nature ; Humana Press, 2021-07-01)
[EN] Feeding 3.9 and 6.7 mg Hg/kg (Se/Hg molar ratios of 0.8 and 0.4, respectively) for 14 days negatively affected Dicentrarchus
labrax growth and total DNTB- and thioredoxin-reductase (TrxR) activities and the transcription ...
Development of a Novel Method for the In-Situ Dechlorination of Immovable Iron Elements: Optimization of Cl- Extraction Yield Through Experimental Design
(Springer, 2021-05-24)
The conservation of iron objects exposed to marine aerosol is threatened by the formation of akaganeite, a highly unstable Cl-bearing corrosion phase. As akaganeite formation is responsible of the exfoliation of the rust ...
Impact of quality management systems in the performance of educational centers: educational policies and management processes
(Elsevier, 2020-04-27)
[EN] In this paper, the findings of an I + D + i research are presented. In this study, an analysis was conducted to assess 14 educational centers where in one of two distinct quality systems had been implemented: the EFQM ...
To what extent do environmental or technological conditions affect the sensory differentiation of raw ewe milk cheeses produced in valley or mountain farms?
(Elsevier, 2020-10-31)
This work discusses the extent to which differences in technological or environmental conditions affect the sensory properties of cheeses made in mountain or valley farms. The work is focused on Idiazabal cheese, frequently ...
Trend in environmental impact of the energy produced and distributed by wind power systems
(Springer, 2020-05-29)
Wind turbine (WT) manufacturers are focusing on reducing the cost of energy produced by new models; however, the same consideration has not been given to their environmental consequences, nor the academic literature. For ...
The rhetoric of weapons in Euripides’ Heracles. Bow versus spear
(Brill, 2020)
Euripides’ Heracles includes an agon scene between Lycus and Amphitryon in which great prominence is attached to the value of the bow as opposed to that of the spear. According to some scholars, this debate about the weapons ...
A complementary observation to determine Phaedrus’ age in Plato’s Phaedrus
(Universidade de Aveiro, 2021-04-10)
This paper deals with the problem of determining Phaedrus’ age in the
eponymous dialogue. The vocatives ὦ νεανία and ὦ παῖ, in Pl. Phdr. 257c8 and 267c6,
could suggest that Plato depicts him as a teenager. However, most ...
Single-Molecule Magnets: From Mn12-ac to dysprosium metallocenes, a travel in time
(Elsevier, 2021-05-07)
The discovery of the first Single-Molecule Magnet, Mn12-ac, in 1993 changed the perspective of how information
can be stored. The current bit, occupying few hundreds of nanometers in present devices, would be
minimized ...