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Applied Sciences, Volume 12, Issue 4

February-2 2022 - 497 articles

Cover Story: Smart industrial workstations for the training and evaluation of workers are an innovative approach to face the problems of manufacturing quality assessment and fast training. In this study, four different vision-based methods based, respectively, on ArUco markers, OpenPose, Azure Kinect Body Tracking and the YOLO network have been proposed in order to estimate the position of a specific point of interest of the tool that has to be tracked in real-time during an assembly or maintenance procedure. The proposed approaches have been tested on a real scenario with four users handling a power drill simulating three different conditions during an assembly procedure. The performance of the methods has been evaluated and compared with the HTC Vive tracking system as a benchmark. Then, the advantages and drawbacks in terms of the accuracy and invasiveness of the method have been discussed. View this paper
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Articles (497)

  • Article
  • Open Access
2 Citations
2,325 Views
18 Pages

21 February 2022

Wind tunnel tests and large eddy simulations were conducted to investigate the dependency of wind forces and flow patterns on the spacing (S) for three tandem prisms with a small height–width ratio H/W = 0.4. At the spacing ratio S/W = 0.7, mea...

  • Article
  • Open Access
2 Citations
3,241 Views
16 Pages

21 February 2022

Wind energy is one of the most important renewable energy sources in the world. Accurate wind power prediction is of great significance for achieving reliable and economical power system operation and control. For this purpose, this paper is focused...

  • Article
  • Open Access
7 Citations
2,658 Views
17 Pages

21 February 2022

The viscoplastic flow of magnetorheological fluid in a disc was analyzed based on the Navier–Stokes Momentum Equation, and the yielded and unyielded decomposition surfaces were obtained. For the shear-thinning phenomenon of magnetorheological f...

  • Article
  • Open Access
8 Citations
3,975 Views
15 Pages

Comparison of Achieved Rolling Resistance Values of Two Selected Tires on a Solid Surface

  • Milan Helexa,
  • Ján Kováč,
  • Jozef Krilek,
  • Ján Melicherčík and
  • Tomáš Kuvik

21 February 2022

The article deals with measuring the rolling resistance of two tires Mitas TS04 6.00-16 6PR and Mitas TS05 10.0/75-15.3 10PR on a concrete surface. The measurement was performed in a soil test channel which had to be adjusted for the given purpose. T...

  • Feature Paper
  • Article
  • Open Access
43 Citations
7,143 Views
27 Pages

21 February 2022

Background—Aircraft inspection is crucial for safe flight operations and is predominantly performed by human operators, who are unreliable, inconsistent, subjective, and prone to err. Thus, advanced technologies offer the potential to overcome...

  • Article
  • Open Access
8 Citations
3,182 Views
25 Pages

21 February 2022

Multiphase electric motors in cooperation with power semiconductor converters belong to the future of electric drives. This is because of their better properties compared to three-phase motors, such as better fault tolerance. How a multiphase motor w...

  • Article
  • Open Access
3 Citations
3,415 Views
16 Pages

21 February 2022

Swing-phase dorsiflexion assistance with robotic ankle–foot orthosis could improve toe clearance and limb shortening such that compensatory movements are suppressed. However, facilitating voluntary effort under assistance remains a challenge. I...

  • Article
  • Open Access
6 Citations
3,151 Views
27 Pages

21 February 2022

The spatial distribution of elements can be regarded as a numerical field of concentration values with a continuous spatial coverage. An active area of research is to discover geologically meaningful relationships among elements from their spatial di...

  • Article
  • Open Access
2,458 Views
19 Pages

Mesenchymal Stromal Cells (MSCs) Isolated from Various Tissues of the Human Arthritic Knee Joint Possess Similar Multipotent Differentiation Potential

  • Mike Wagenbrenner,
  • Konrad Poker,
  • Tizian Heinz,
  • Marietta Herrmann,
  • Konstantin Horas,
  • Regina Ebert,
  • Susanne Mayer-Wagner,
  • Boris M. Holzapfel,
  • Maximilian Rudert and
  • Andre F. Steinert
  • + 1 author

21 February 2022

(1) Background: The mesenchymal stromal cells (MSCs) of different tissue origins are applied in cell-based chondrogenic regeneration. However, there is a lack of comparability determining the most suitable cell source for the tissue engineering (TE)...

  • Article
  • Open Access
3 Citations
2,123 Views
17 Pages

21 February 2022

The article discusses the possibility of using computational methods for modelling the size of the injection doses. Polynomial and artificial intelligence methods were used for prediction. The aim of the research was to analyze whether it is possible...

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Appl. Sci. - ISSN 2076-3417