Results 21 to 30 of about 15,334 (228)

Unmanned Aircraft System traffic management: Concept of operation and system architecture

International Journal of Transportation Science and Technology, 2016
Within the past few years, civilian demand for small unmanned aircraft systems (sUAS), commonly referred to as drones, has skyrocketed. The passage of the Federal Aviation Administration (FAA) Modernization and Reform Act in 2012 acknowledged this fact ...
Tao Jiang, Jared Geller, Daiheng Ni, John Collura   +3 more
doaj   +1 more source

Development of a Small-Capacity Tensile Testing Machine for Educational Demonstration

JRST: Jurnal Riset Sains dan Teknologi
The tensile testing machine is a device used to characterize the mechanical properties of materials. Most tensile testing machines currently available are designed for high-capacity applications, such as testing metals and concrete, making them less ...
Paryana Puspaputra, Hendra Setiawan, Arif Rahman Hakim   +2 more
doaj   +1 more source

ESTABLISHMENT OF NEW FITTED GEOID MODEL IN UNIVERSITI TEKNOLOGI MALAYSIA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The purpose of this study is to produce fitted geoid for Universiti Teknologi Malaysia (UTM), Johor Bahru by using precise levelling and 3D GNSS control network technique.
M. K. Ismail, A. H. M. Din, A. H. M. Din, A. H. M. Din, M. N. Uti, A. H. Omar   +5 more
doaj   +1 more source

Consumo e digestibilidade aparente de silagens de sorgo em diferentes estádios de maturação

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
Avaliaram-se o consumo e a digestibilidade aparente, em ovinos, das silagens dos híbridos de sorgo BRS 610, BR 700 e BRS 655 colhidos em três estádios de maturação dos grãos: leitoso, pastoso e farináceo.
F.S. Machado, N.M. Rodríguez, L.C. Gonçalves, J.A.S. Rodrigues, M.N. Ribas, F.P. Pôssas, R. Guimarães Júnior, D.G. Jayme, L.G.R. Pereira   +8 more
doaj   +1 more source

Digital Twin Development for the Airspace of the Future

Drones, 2023
The UK aviation industry is committed to achieving net zero emissions by 2050 through sustainable measures and one of the key aspects of this effort is the implementation of Unmanned Traffic Management (UTM) systems. These UTM systems play a crucial role
Toufik Souanef, Saba Al-Rubaye, Antonios Tsourdos, Samuel Ayo, Dimitrios Panagiotakopoulos   +4 more
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Effect of silver diamine fluoride application on the microtensile bond strength of three commonly used restorative materials in primary teeth: An ultrastructural study

Journal of Indian Society of Pedodontics and Preventive Dentistry
Introduction: Caries in primary teeth rapidly advances owing to its thin structure, thereby requiring restoration. However, restorations often fail due to various causes such as secondary caries and reduced microtensile bond strength (μTBS), which calls ...
Ishita Banerjee, Ananjan Chatterjee, Gautam Kumar Kundu, Shabnam Zahir, Swapan Kumar Purkait, Shikhar Kumar   +5 more
doaj   +1 more source

Design and characterization of ceramic hollow fiber membrane derived from waste ash using phase inversion-based extrusion/sintering technique for water filtration

Journal of Asian Ceramic Societies, 2021
Low-cost green ceramic hollow fiber membranes (CHFM) were successfully designed and fabricated from the industrial waste ash, palm oil fuel ash (POFA) via phase inversion-based extrusion/sintering techniques for water filtration application.
Zhong Sheng Tai, Mohd Hafiz Dzarfan Othman, Azeman Mustafa, Mohd Irfan Hatim Mohamed Dzahir, Siti Khadijah Hubadillah, Khong Nee Koo, Mohd Ariff Azali, Nur Hashimah Alias, Boon Seng Ooi, Tonni Agustiono Kurniawan, Ahmad Fauzi Ismail   +10 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

From Global GPS to Local Waypoints: A UTM-Based GPS-IMU Localization Method for VTOL UAV Navigation

Journal of Applied Informatics and Computing
This study presents a deterministic UTM-based GPS–IMU localization framework for short-range waypoint navigation of a Vertical Take-Off and Landing (VTOL) unmanned aerial vehicle.
Ryan Satria Wijaya, Nedia Waty, Nur Rafia Dija   +2 more
doaj   +1 more source