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Technologies, Volume 8, Issue 3

September 2020 - 14 articles

Cover Story: Robots are serving food in numerous restaurants in many parts of the world. However, waiter robots are not so competent when it comes to beverage and soup delivery. The problem arises in their jerky motion control, although they are widely used as industrial robots. In this paper, we examined the kinematic solutions from ROS and the constraints of motion planning and proposed solutions with jerk limits using spline velocity profiles. State machine design that enables the robot to behave and move reactively will be introduced to effectively balance desired velocity with managing the type of load. Experiments have shown that robots can move smoothly without crashing or spilling. The control of velocity behaviors has enhanced waiter robot operations in restaurants. View this paper

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Article

32 Citations

8,039 Views

30 Pages

Blue-Green Smart Mobility Technologies as Readiness for Facing Tomorrow’s Urban Shock toward the World as a Better Place for Living (Case Studies: Songdo and Copenhagen)

Hamid Doost Mohammadian and
Fatemeh Rezaie

Technologies2020, 8(3), 39;https://doi.org/10.3390/technologies8030039

2 July 2020

Nowadays, we are on the cusp of a future that will face many global challenges and crises, as well as unforeseeable shocks of tomorrow. The rapid growth and development of technology will bring forth exponential change that may challenge and threaten...

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Feature Paper
Article

10 Citations

5,152 Views

18 Pages

Wear Resistance and Titanium Adhesion of Cathodic Arc Deposited Multi-Component Coatings for Carbide End Mills at the Trochoidal Milling of Titanium Alloy

Marina A. Volosova,
Sergey V. Fyodorov,
Stepan Opleshin and
Mikhail Mosyanov

Technologies2020, 8(3), 38;https://doi.org/10.3390/technologies8030038

30 June 2020

The work was devoted to the study of the effectiveness of the application of multi-component coatings, TiN–Al/TiN, TiN–AlTiN/SiN, and CrTiN–AlTiN–AlTiCrN/SiN, obtained by cathodic arc deposition to increase the wear resistance of 6WH10F carbide end m...

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Article

31 Citations

11,843 Views

17 Pages

Autonomous Smart White Cane Navigation System for Indoor Usage

Mohamed Dhiaeddine Messaoudi,
Bob-Antoine J. Menelas and
Hamid Mcheick

Technologies2020, 8(3), 37;https://doi.org/10.3390/technologies8030037

29 June 2020

According to the statistics provided by the World Health Organization, the number of people suffering from visual impairment is approximately 1.3 billion. The number of blind and visually impaired people is expected to increase over the coming years,...

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Article

2 Citations

4,146 Views

14 Pages

Evaluation of Epidemic-Based Information Dissemination in a Wireless Network Testbed

Andreana Stylidou,
Alexandros Zervopoulos,
Aikaterini Georgia Alvanou,
George Koufoudakis,
Georgios Tsoumanis and
Konstantinos Oikonomou

Technologies2020, 8(3), 36;https://doi.org/10.3390/technologies8030036

28 June 2020

Information dissemination is an integral part of modern networking environments, such as Wireless Sensor Networks (WSNs). Probabilistic flooding, a common epidemic-based approach, is used as an efficient alternative to traditional blind flooding as i...

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