Applied Sciences

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Kinematic and Dynamic Modelling for a Class of Hybrid Robots Composed of m Local Closed-Loop Linkages Appended to an n-Link Serial Manipulator
Applied Sciences - Tập 10 Số 7 - Trang 2567 - 2020
Chu, Anh My, Nguyen, Cong Dinh, Vu, Minh Hoan, Duong, Xuan Bien, Nguyen, Tien Anh, Le, Chi Hieu
Recently, more and more hybrid robots have been designed to meet the increasing demand for a wide spectrum of applications. However, development of a general and systematic method for kinematic design and dynamic analysis for hybrid robots is rare. Most publications deal with the kinematic and dynamic issues for individual hybrid robots rather than any generalization. Hence, in this paper, we pres... hiện toàn bộ
A Consistency Evaluation Method of Pavement Performance Based on K-Means Clustering and Cumulative Distribution
Applied Sciences - Tập 13 Số 1 - Trang 106
Wenya Ye, Rui Zhang, Qun Yang
This paper proposes a cumulative distribution modelling method for pavement performance indexes based on the sampling theorem and implements clustering analysis of similar road sections through the K-means algorithm. The results show that: (1) The modelling method proposed in this paper can convert discrete pavement performance data into a continuous function of pavement performance indexes and a ... hiện toàn bộ
Blockchain in Agriculture Traceability Systems: A Review
Applied Sciences - Tập 10 Số 12 - Trang 4113
Konstantinos Demestichas, Νικόλαος Πεππές, Theodoros Alexakis, Evgenia Adamopoulou
Food holds a major role in human beings’ lives and in human societies in general across the planet. The food and agriculture sector is considered to be a major employer at a worldwide level. The large number and heterogeneity of the stakeholders involved from different sectors, such as farmers, distributers, retailers, consumers, etc., renders the agricultural supply chain management as one of the... hiện toàn bộ
Quality Assessment of 3D Printed Surfaces Using Combined Metrics Based on Mutual Structural Similarity Approach Correlated with Subjective Aesthetic Evaluation
Applied Sciences - Tập 10 Số 18 - Trang 6248
Krzysztof Okarma, Jarosław Fastowicz, Piotr Lech, Vladimir Lukin
Quality assessment of the 3D printed surfaces is one of the crucial issues related to fast prototyping and manufacturing of individual parts and objects using the fused deposition modeling, especially in small series production. As some corrections of minor defects may be conducted during the printing process or just after the manufacturing, an automatic quality assessment of object’s surfaces is ... hiện toàn bộ
An Overview of Material Extrusion Troubleshooting
Applied Sciences - Tập 10 Số 14 - Trang 4776
Giselle Hsiang Loh, Eujin Pei, Joamin González-Gutiérrez, Mario Monzón
Material extrusion (ME) systems offer end-users with a more affordable and accessible additive manufacturing (AM) technology compared to other processes in the market. ME is often used to quickly produce low-cost prototyping with the freedom of scalability where parts can be produced in different geometries, quantities and sizes. As the use of desktop ME machines has gained widespread adoption, th... hiện toàn bộ
Experimental Analysis of Engine Performance and Exhaust Pollutant on a Single-Cylinder Diesel Engine Operated Using Moringa Oleifera Biodiesel
Applied Sciences - Tập 11 Số 15 - Trang 7071
Manzoore Elahi M. Soudagar, Haris Mahmood Khan, T. M. Yunus Khan, Luqman Razzaq, Tahir Asif, M.A. Mujtaba, Abrar Hussain, Muhammad Farooq, Haseeb Yaqoob, Kiran Shahapurkar, Azham Alwi, Ibrahim Tchakala, Usama Ishtiaq, Ashraf Elfasakhany, Maughal Ahmed Ali Baig, Marjan Goodarzi, Mohammad Reza Safaei
In this investigation, biodiesel was produced from Moringa oleifera oil through a transesterification process at operating conditions including a reaction temperature of 60 °C, catalyst concentration of 1% wt., reaction time of 2 h, stirring speed of 1000 rpm and methanol to oil ratio of 8.50:1. Biodiesel blends, B10 and B20, were tested in a compression ignition engine, and the performance and em... hiện toàn bộ
Overview of the Development of 3D-Printing Concrete: A Review
Applied Sciences - Tập 11 Số 21 - Trang 9822
Fuyan Lyu, Dongliang Zhao, Xiaohui Hou, Li Sun, Qiang Zhang
3D-printing concrete technology has attracted more and more attention for smart construction due to its advantages of digitization, automation, and high degree of intelligence. This article introduces the basic principles and related processes of concrete 3D-printing technology, and reviews the development from the following four fields: the material properties, preparation technology, printing pa... hiện toàn bộ
The Effect of Chelate Compounds on the Hydration Process of MgO–Al2O3 Phase System under Hydrothermal Conditions
Applied Sciences - Tập 11 Số 6 - Trang 2834
Ryszard Prorok, Jakub Ramult, Wiesława Nocuń-Wczelik, Dominika Madej
In refractory castables during heat treatment, there is a dynamic change from a hydraulic bond to a ceramic bond. During heating, the emission of water takes place; this changes the conditions inside the material to something similar to the hydrothermal ones. This influences the processes that occur during the heating of the castables, and in consequence, the properties of the final material. The ... hiện toàn bộ
Analysis of a Sound Signal for Quality Monitoring in Laser Microlap Welding
Applied Sciences - Tập 10 Số 6 - Trang 1934
Bo-Si Kuo, Ming‐Chyuan Lu
This study focused on correlation analysis between welding quality and sound-signal features collected during microlaser welding. The study provides promising features for developing a monitoring system that detects low joint strength caused by a gap between metal sheets after welding. To obtain sound signals for signal analysis and develop the monitoring system, experiments for laser microlap wel... hiện toàn bộ
A Learning Analytics Approach to Identify Students at Risk of Dropout: A Case Study with a Technical Distance Education Course
Applied Sciences - Tập 10 Số 11 - Trang 3998
Emanuel Marques Queiroga, João Ladislau Barbará Lopes, Kristofer S. Kappel, Marílton Sanchotene de Aguiar, Ricardo Araújo, Roberto Muñoz, Rodolfo Villarroel, Cristian Cechinel
Contemporary education is a vast field that is concerned with the performance of education systems. In a formal e-learning context, student dropout is considered one of the main problems and has received much attention from the learning analytics research community, which has reported several approaches to the development of models for the early prediction of at-risk students. However, maximizing ... hiện toàn bộ
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