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Topic Review
Influence of Manufacturing Process with Additive Manufacturing
Due to their versatile advantages, the use of additively manufactured components is growing. In addition, new additive manufacturing processes are constantly being developed, so that a wide range of printing processes are now available for metal. Despite the same starting material, the microstructure and thus also the final mechanical properties differ greatly compared to conventional processes. In most cases, only direction-dependent characteristic values from the uniaxial tension are used to qualify a printing process before it is used. The literature, on the other hand, demonstrates that the results are not transferable to other loading conditions.
  • 251
  • 01 Dec 2023
Topic Review
Fused Filament Printing Process
Additive manufacturing technologies are used in various high-tech industries. Additive methods for the production of prostheses, implants and other products of complex geometric shapes made of polymer materials are being actively studied and introduced. A large number of studies are associated with the use of polylactide (PLA), polyether ether ketone (PEEK), polyamides and other biocompatible materials when printing using fused filament/granular fabrication (FFF/FGF).
  • 529
  • 01 Dec 2023
Topic Review
Autonomous Vehicle Decision-Making for Handling a Round Intersection
Autonomous shuttles have been used as end-mile solutions for smart mobility in smart cities. The urban driving conditions of smart cities with many other actors sharing the road and the presence of intersections have posed challenges to the use of autonomous shuttles. Round intersections are more challenging because it is more difficult to perceive the other vehicles in and near the intersection. 
  • 311
  • 01 Dec 2023
Topic Review
Universal Equations for Wh and Wm Characteristics
Suter curves for the Wh and Wm characteristics and four-quadrant (4Q) diagrams of 11 radial pump–turbine models with different specific speeds (nq = 24.34, 24.8, 27, 28.6, 38, 41.6, 41.9, 43.83, 50, 56, and 64.04) are presented for the first time, as well as Suter curves for two pump models (nq = 25 and 41.8) previously published in the literature. All of these curves were analyzed to establish a certain universal law of behavior, depending on the specific speed.
  • 336
  • 01 Dec 2023
Topic Review
Construction Risks Due to Fast-Track Activity Overlapping
Concurrent engineering through overlapping of activities (i.e., fast-tracking) has been used as a schedule acceleration technique. Fast-track construction projects are generally recognized as riskier and subject to risks arising due to the concurrency of work.
  • 293
  • 01 Dec 2023
Topic Review
Assess Hypernasality
Automatic evaluation of hypernasality has been traditionally computed using monophonic signals (i.e., combining nose and mouth signals).
  • 216
  • 01 Dec 2023
Topic Review
Non-Stationary Multipath 5G Non-Terrestrial Networks
In non-terrestrial networks, where low Earth orbit satellites and user equipment move relative to each other, line-of-sight tracking and adapting to channel state variations due to endpoint movements are a major challenge.
  • 210
  • 01 Dec 2023
Topic Review
Livability in a Smart Environment
Public spaces play a significant role in improving social, recreational and cultural activities that are inclusive. However, smart public spaces are required to save time and costs, and to provide comfort to the public, ultimately enhancing livability. There are various user requirements and demands to respond to.
  • 198
  • 01 Dec 2023
Topic Review
The Concept of a Dual-Core PLC
IEC 61131-3-compliant engineering environments consist of IDE (integrated development environment) with language editors, compiler of source programs into binary code, and runtime for execution of the code. In a dual-core PLC proposed here, the cores run different projects cooperating by shared memory.
  • 137
  • 30 Nov 2023
Topic Review
2.5D Multi-Objective Path Planning for Ground Vehicles
Due to the vastly different energy consumption between up-slope and down-slope, a path with the shortest length in a complex off-road terrain environment (2.5D map) is not always the path with the least energy consumption. For any energy-sensitive vehicle, realizing a good trade-off between distance and energy consumption in 2.5D path planning is significantly meaningful.
  • 157
  • 30 Nov 2023
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