Search
Now showing items 11-20 of 102
Upcycling discarded cellulosic surgical masks into catalytically active freestanding materials
(Springer, 2022)
[EN] The COVID-19 pandemic outbreak has resulted in the massive fabrication of disposable surgical masks. As the accumulation of discarded face masks represents a booming threat to the environment, here we propose a solution ...
Use of measuring gauges for in vivo accuracy analysis of intraoral scanners: a pilot study
(Korean Academy of Prosthodontics, 2021-08-26)
PURPOSE: The purpose of this study is to present a methodology to evaluate the accuracy of intraoral scanners (IOS) used in vivo.
MATERIALS AND METHODS: A specific feature-based gauge was designed, manufactured, and ...
Degradation Behavior, Biocompatibility, Electrochemical Performance, and Circularity Potential of Transient Batteries
(Wiley, 2021-06)
Transient technology seeks the development of materials, devices, or systems that undergo controlled degradation processes after a stable operation period, leaving behind harmless residues. To enable externally powered ...
Implementation of an In-House 3D Manufacturing Unit in a Public Hospital’s Radiology Department
(MDPI, 2022-09-16)
Objective: Three-dimensional printing has become a leading manufacturing technique in healthcare in recent years. Doubts in published studies regarding the methodological rigor and cost-effectiveness and stricter regulations ...
Environmental Impact Assessment of Chitin Nanofibril and Nanocrystal Isolation from Fungi, Shrimp Shells, and Crab Shells
(American Chemical Society, 2022-10)
Chitin nanoparticles are responsible for the outstanding mechanical properties found in the exoskeletons of crustaceans and are finding applications in many scientific and technological fields. Following a Circular Economy ...
Landforms of the lower Hushe Valley (Central Karakoram, Pakistan)
(Taylor & Francis, 2020-12-09)
This paper presents a new geomorphological map for the lower Hushe Valley (below 3400 m asl), located to the SE of the Central Karakoram in Baltistan (North Pakistan). Fieldwork and remote sensing were combined to improve ...
Old Wind Farm Life Extension vs. Full Repowering: A Review of Economic Issues and a Stochastic Application for Spain
(MDPI, 2021-06-20)
The installation of wind power technology is growing steadily and the trend can be expected to continue if the objectives proposed by the European Commission are to be achieved. In some countries a considerable percentage ...
Evolution of Microstructure during Isothermal Treatments of a Duplex-Austenitic 0.66C11.4Mn.9.9Al Low-Density Forging Steel and Effect on the Mechanical Properties
(MDPI, 2021-01-26)
In the last decades, low-density steels for forging have increasing interest in the automotive industry, and good mechanical properties are required for their real application. This paper describes the results obtained for ...
Catalyst Deactivation And Regeneration Processes In Biogas Tri-Reforming Process. The Effect Of Hydrogen Sulfide Addition
(MDPI AG, 2018-01-09)
This work studies Ni-based catalyst deactivation and regeneration processes in the presence of H2S under a biogas tri-reforming process for hydrogen production, which is an energy vector of great interest. 25 ppm of hydrogen ...
Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
(MDPI, 2018-12)
The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in ...