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Applied Sciences, Volume 13, Issue 12

June-2 2023 - 485 articles

Cover Story: Sodium borohydride has largely been studied as a hydrogen storage material due to its significant advantages. This work studies the effects of non-toxic and environmentally friendly additives for the hydrolysis process in terms of yield, lag time, hydrogen generation rate, and gravimetric density. Sodium carboxymethylcellulose, polyacrylamide, sodium dodecyl sulfate, and β-cyclodextrin were studied for their application in the storage and release of hydrogen. The best results were provided by the use of sodium carboxymethyl cellulose and polyacrylamide. In the first case, a hydrolysis yield of 85%, a lag time of 70 s, a hydrogen production rate of 1374 mL·min−1·gcat−1, and a storage capacity of 1.8 wt% were obtained. Using polyacrylamide as an additive, a hydrolysis yield of almost 100% was achieved, although it required a significantly higher time period for complete conversion. View this paper
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Articles (485)

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,943 Views
14 Pages

20 June 2023

Friction stir processing (FSP) offers a unique opportunity to tailor the microstructure and improve the mechanical properties due to the combination of extensive strains, high temperatures, and high-strain rates inherent to the process. Reactive fric...

  • Article
  • Open Access
23 Citations
4,601 Views
15 Pages

20 June 2023

As the operational time of the railway increases, rail surfaces undergo irreversible defects. Once the defects occur, it is easy for them to develop rapidly, which seriously threatens the safe operation of trains. Therefore, the accurate and rapid de...

  • Article
  • Open Access
20 Citations
5,554 Views
17 Pages

Detecting Underwater Concrete Cracks with Machine Learning: A Clear Vision of a Murky Problem

  • Ugnė Orinaitė,
  • Viltė Karaliūtė,
  • Mayur Pal and
  • Minvydas Ragulskis

20 June 2023

This paper presents the development of an underwater crack detection system for structural integrity assessment of submerged structures, such as offshore oil and gas installations, underwater pipelines, underwater foundations for bridges, dams, etc....

  • Article
  • Open Access
11 Citations
2,079 Views
17 Pages

Evaluation of Dynamic Properties of Trees Subjected to Induced Vibrations

  • Ernesto Grande,
  • Ersilia Giordano and
  • Francesco Clementi

20 June 2023

The preservation of trees in urban and archeological areas is a theme of particular relevance. Modern systems of monitoring, together with approaches for deriving the main characteristics of trees influencing their response toward extreme events, are...

  • Article
  • Open Access
1 Citations
4,109 Views
12 Pages

Clustering of LMS Use Strategies with Autoencoders

  • María J. Verdú,
  • Luisa M. Regueras,
  • Juan P. de Castro and
  • Elena Verdú

20 June 2023

Learning Management Systems provide teachers with many functionalities to offer materials to students, interact with them and manage their courses. Recognizing teachers’ instructing styles from their course designs would allow recommendations a...

  • Article
  • Open Access
6 Citations
2,266 Views
30 Pages

20 June 2023

Power load forecasting plays an important role in power systems, and the accuracy of load forecasting is of vital importance to power system planning as well as economic efficiency. Power load data are nonsmooth, nonlinear time-series and “nois...

  • Review
  • Open Access
2,290 Views
13 Pages

Diagnostic Protocol, Outcomes and Future Perspectives of the Vesical Imaging-Reporting and Data Systems (VI-RADS), a Narrative Review

  • Luigi Napolitano,
  • Simona Ippoliti,
  • Peter Fletcher,
  • Martina Caruso,
  • Luigi Cirillo,
  • Roberto Miano,
  • Enrico Finazzi Agrò,
  • Roberto La Rocca,
  • Ferdinando Fusco and
  • Davide Arcaniolo
  • + 1 author

20 June 2023

Bladder cancer (BC) is common worldwide, and has aggressive features and high rates of relapse despite treatments. Approximately 30% of patients present with muscle invasive disease, and therefore, high risk of metastasis. This review provides an ove...

  • Article
  • Open Access
29 Citations
5,380 Views
21 Pages

20 June 2023

Various machine learning algorithms have been applied to network intrusion classification problems, including both binary and multi-class classifications. Despite the existence of numerous studies involving unbalanced network intrusion datasets, such...

  • Article
  • Open Access
3 Citations
3,295 Views
12 Pages

In Vitro Comparison of the Fluoride Ion Release from the First- and Second-Generation Fluoride Varnishes

  • Dagmara Piesiak-Panczyszyn,
  • Adam Watras,
  • Rafal J. Wiglusz and
  • Maciej Dobrzynski

20 June 2023

Fluoride varnishes, both the first and the second generations, are effective in inhibiting caries, especially in children and adolescents, by reducing it on average by 43% for permanent teeth and 37% for deciduous teeth. The aim of this study was to...

  • Article
  • Open Access
6 Citations
3,400 Views
20 Pages

20 June 2023

Rock fragmentation by blasting influences ore recovery and the cost of downstream operations. The development of electronic detonators makes it possible to improve fragmentation by controlling the initiation timing in blasting projects, and the effec...

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Appl. Sci. - ISSN 2076-3417