Results 81 to 90 of about 740,547 (334)

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Demonstration of a Hybrid FSO/VLC Link for the Last Mile and Last Meter Networks

IEEE Photonics Journal, 2019
In this paper, a hybrid free-space optical and visible light communication (FSO/VLC) system was experimentally demonstrated as a solution to overcome the last mile and last meter access networks bandwidth bottleneck. We evaluate the system performance of
Petr Pesek, Stanislav Zvanovec, Petr Chvojka, Zabih Ghassemlooy, Paul Anthony Haigh   +4 more
doaj   +1 more source

Design of One-Eighth Spherical Dielectric Resonator Antenna for 5G Applications

IEEE Access, 2020
A one-eighth spherical surface dielectric resonator antenna (OESS-DRA) is proposed first time. To analyze this thin shell structure, electromagnetic fields distribution is discussed by using the Hertz vector and boundary conditions.
Zhiwei Song, Hongxing Zheng, Mengjun Wang, Erping Li, Yongjian Li   +4 more
doaj   +1 more source

Electromagnetic field quantization in an anisotropic magnetodielectric medium with spatial-temporal dispersion

, 2008
By modeling a linear, anisotropic and inhomogeneous magnetodielectric medium with two independent set of harmonic oscillators, electromagnetic field is quantized in such a medium.
F Kheirandish, Ford G W, Landau L D, M Amooshahi, Milonni P W, Suttorp L G   +5 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Hierarchical Markov model used in the reliability assessment and management of low-voltage switchgear

Advances in Mechanical Engineering, 2017
In this article, the reliability assessment and management of low-voltage switchgear was introduced based on a hierarchical Markov model. First, the reliability block diagram of motor control center was established by actual circuit.
Jingqin Wang, Li Wang, Ching-Hsin Wang, Zhigang Zhang   +3 more
doaj   +1 more source

Usability of a 5G Fronthaul Based on a DML and External Modulation for M-QAM Transmission Over Photonically Generated 40 GHz

IEEE Access, 2020
In this paper, we numerically and experimentally present the bandwidth constraints of a cost-effective 5G mobile fronthaul based on a directly-modulated laser for data modulation and a Mach-Zehnder modulator-based optical double sideband with carrier ...
Luis Vallejo, Beatriz Ortega, Dong-Nhat Nguyen, Jan Bohata, Vicene Almenar, Stanislav Zvanovec   +5 more
doaj   +1 more source

Understanding light quanta: First quantization of the free electromagnetic field

, 2004
The quantization of the electromagnetic field in vacuum is presented without reference to lagrangean quantum field theory. The equal time commutators of the fields are calculated from basic principles.
A C de la Torre, Ballentine L E, Bohr N, Greenstein G, Jordan P, Landau L D, Milonni P W, Rosenfeld L, Schiff L I, Scully M O, Speziali P, Stanley R Q, Weinberg S, Wheeler J A, Wheeler J A, Ynduráin F J   +15 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

A novel thyristor‐based hybrid DC circuit breaker with short arcing capability

High Voltage
Multi‐terminal flexible high‐voltage direct current (HVDC) transmission and DC grid technology are developing rapidly. The hybrid DC circuit breaker (HCB) has broad application prospects in the field of HVDC transmission and DC power grid.
Guanlong Jia, Yuchen Yuan, Hongjiang Guo, Xiaoxue Wang, Feng Niu   +4 more
doaj   +1 more source