Search
Now showing items 231-240 of 491
Analysis of the Efficiency of Traffic Lights Turning Red in Case of Exceeding Speed Limit
(Universidad Nacional de Colombia, 2021-04)
Due to the presence of various traffic calming measures (TCM) and traffic lights in urban areas, the speed of vehicles is maintained low. Nevertheless, a problem arises in the frontier between urban and non-urban areas ...
Advances in the Study of the Behavior of Full-Depth Reclamation (FDR) with Cement
(MDPI, 2019-08-01)
Road maintenance and rehabilitation are expected to meet modern society's demands for sustainable development. Full-depth reclamation with cement as a binder is closely linked to the concept of sustainability. In addition ...
Bitumen modified with recycled polyurethane foam for employment in hot mix asphalt
(Universidad Nacional de Colombia, 2018-04)
A wide variety of modifiers have been applied to bitumen in order to enhance their properties and performance. Among them, polymers have been mainly used. The aim of this paper is to assess the use of polyurethane foam ...
Semi-Active Magnetorheological Damper Device for Chatter Mitigation during Milling of Thin-Floor Components
(MDPI, 2020-07-31)
The productivity during the machining of thin-floor components is limited due to unstable vibrations, which lead to poor surface quality and part rejection at the last stage of the manufacturing process. In this article, ...
Design and Testing of Two Haptic Devices Based on Reconfigurable 2R Joints
(MDPI, 2021-12-30)
per presents the design and testing of two haptic devices, based on reconfigurable 2R joints: an active 2R spherical mechanism-based joint and a differential gear-based joint. Based on our previous works, in which the ...
Special Issue on “Machining Dynamics and Parameters Process Optimization”
(MDPI, 2020-12-14)
In 1907, F.W Taylor—the father of production engineering—exposed the fundamentals of modern machining and defined chatter as the most obscure and delicate of all problems facing the machinist [...]
Improving Skills in Mechanism and Machine Science Using GIM Software
(MDPI, 2021-08-26)
The field of education has evolved significantly in recent years as it has incorporated new pedagogical methodologies. Many of these methodologies are designed to encourage students’ participation in the learning process. ...
Design and Experimental Characterization of L-CADEL v2, an Assistive Device for Elbow Motion
(MDPI, 2021-07-29)
An experimental characterization is presented for an improved version of a wearable assistive device for elbow motion. The design is revised with respect to requirements for elbow motion assistance, looking at applications ...
Hybrid Optimization Based Mathematical Procedure for Dimensional Synthesis of Slider-Crank Linkage
(MDPI, 2021-07-05)
In this paper, an optimization procedure for path generation synthesis of the slider-crank mechanism will be presented. The proposed approach is based on a hybrid strategy, mixing local and global optimization techniques. ...
Nuevo procedimiento para calcular la eficiencia óptica del campo de heliostatos de una STP y reducir su tiempo de computación
(2022-04-01)
Uno de los principales problemas de la tecnología solar de concentración con torre central, es la mejora de la eficiencia óptica del campo de heliostatos, encargado de concentrar la radiación solar sobre el receptor. ...