Results 71 to 80 of about 93,742 (313)

Energy-Aware Sink Node Localization Algorithm for Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2015
Wireless sensor networks (WSNs) are a family of wireless networks that usually operate with irreplaceable batteries. The energy sources limitation raises the need for designing specific protocols to prolong the operational lifetime of such networks ...
Mohamed Mostafa Fouad, Vaclav Snasel, Aboul Ella Hassanien   +2 more
doaj   +1 more source

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos, Eleni Papadopoulou, Grigorios Kostopoulos, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria Gkara, Chara C. Mitropoulou, Nikos D. Lagaros   +8 more
wiley   +1 more source

The Upgrade of Topological Group Based on a New Hyper-topology [PDF]

Fuzzy Information and Engineering, 2011
Wang et al [1] have put forward the problem of upgrade of topology and obtained a series of systematic theories and applicable results. Li et al [2] have put forwarded the problem of upgrade of group and also obtained a series of results. Consequently, the problem of upgrade of mathematic structure has drawn more attention of researchers.
Yu-bin Zhong, Hong-xing Li, Hong-xing Li
openaire   +2 more sources

Optimizing Laser Ablation of Stainless Steels for Volume Removal and Surface Quality Using Burst of Pulses

Advanced Engineering Materials, EarlyView.
This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell, Bahman Azarhoushang, Andrés Fabián Lasagni   +2 more
wiley   +1 more source

Omnidirectional Vision Based Topological Navigation [PDF]

International Journal of Computer Vision, 2007
In this work we present a novel system for autonomous mobile robot navigation. With only an omnidirectional camera as sensor, this system is able to build automatically and robustly accurate topologically organised environment maps of a complex, natural environment.
Goedemé, Toon, Nuttin, Marnix, Tuytelaars, Tinne, Van Gool, Luc   +3 more
openaire   +4 more sources

Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets

Advanced Engineering Materials, EarlyView.
This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager, Yi Jin, Mohammad Faruk, Jay Alberts, C. Chase Cao   +4 more
wiley   +1 more source

Design and implementation of mine-used integrated base station with positioning and communication

Meikuang Anquan
5G wireless communication technology has the characteristics of high bandwidth, wide connectivity, and low latency, and has been demonstrated and applied in the coal mining industry.
Yousheng HUANG
doaj   +1 more source

Transverse flux machines as an alternative to radial flux machines in an in-wheel motor

The Journal of Engineering, 2019
This paper considers the use of transverse flux machines (TFMs) as an alternative to radial flux machines (RFMs) in an in-wheel application for an electric vehicle.
Iago Martinez-Ocaña, Nick J. Baker, Nick J. Baker, Barrie C. Mecrow, Chris Hilton, Simon Brockway   +5 more
doaj   +1 more source

3D‐Printable Near‐Infrared‐Responsive Microscale Cantilever made of the Composite Consisting of Ceramic Particles and Graphene Flakes

Advanced Engineering Materials, EarlyView.
A near infrared‐responsive microscale cantilever is developed using a 3D‐printable composite based on photocurable resin consisting of sepiolite and graphene flakes. The material absorbs 1064 nm light, causing shape transformation with an average displacement of 1.3 mm in 1.7 s. Displacement is measured via video recording.
Karolina Laszczyk, Weronika Chuda, Piotr Kamedulski, Damian Nowak   +3 more
wiley   +1 more source

Topological, or Non-topological? A Deep Learning Based Prediction

, 2023
Prediction and discovery of new materials with desired properties are at the forefront of quantum science and technology research. A major bottleneck in this field is the computational resources and time complexity related to finding new materials from ab initio calculations.
Rasul, Ashiqur, Hossain, Md Shafayat, Dastider, Ankan Ghosh, Roy, Himaddri, Hasan, M. Zahid, Khosru, Quazi D. M.   +5 more
openaire   +2 more sources