Results 71 to 80 of about 9,618,790 (361)
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 +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The fabrication of patterned transition metal dichalcogenide (TMD)/graphene heterostructures via direct laser writing reveals new interface chemistry and enables efficient, customizable assembly. Selective laser irradiation of functionalized TMD/graphene triggers localized reactions, forming chemically modified interfaces.
Xin Chen +12 more
wiley +1 more source
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 +3 more
doaj +1 more source
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 +5 more
doaj +1 more source
Experimental and Molecular Medicine, 2013 Many studies have reported that an electromagnetic field can promote osteogenic differentiation of mesenchymal stem cells. However, experimental results have differed depending on the experimental and environmental conditions.
K. S. Kang +5 more
semanticscholar +1 more source
Effects of electromagnetic field on the dynamical instability of expansionfree gravitational collapse [PDF]
General Relativity and Gravitation, 2012 In this paper, we discuss the effects of electromagnetic field on the dynamical instability of a spherically symmetric expansionfree gravitational collapse.
Muhammad Sharif, M. Azam
semanticscholar +1 more source
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 +2 more
wiley +1 more source
A novel thyristor‐based hybrid DC circuit breaker with short arcing capability
High VoltageMulti‐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 +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2014 The recently introduced coupled shorted-patches technique for the design of extremely low-profile UHF RFID tag antennas is used to illustrate the flexibility of selected feeding methods for tuning the antenna input impedance for the complex values ...
Milan Svanda, Milan Polivka
doaj +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 +8 more
wiley +1 more source