A 900/1800 MHz dual‐band high‐efficiency rectenna
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31704
Abstract: This article presents a high-efficiency dual-band rectenna, for RF energy harvesting in GSM bands (900-1800 MHz).The rectifier used is a dual-diode rectifier topology based on a Delon voltage doubler. To ensure, the highest efficiency as… read more here.
Keywords: high efficiency; mhz; dual band; 1800 mhz ... See more keywords
Wire‐based sternal closure: MRI‐related heating at 1.5 T/64 MHz and 3 T/128 MHz based on simulation and experimental phantom study
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.27963
Abstract: The paper investigates factors that affect the RF‐induced heating for commonly used wire‐based sternal closure under 1.5 T and 3 T MRI systems and clarifies the heating mechanisms. read more here.
Keywords: mhz; sternal closure; wire based; closure mri ... See more keywords
Characterization of Four Flavonoid Compounds from Stems of Schisandra chinensis
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Natural Compounds"
DOI: 10.1007/s10600-017-1934-2
Abstract: Schisandra chinensis (Turcz.) Baill. is a well-known traditional Chinese medicine that has been used for a long time, especially in the folk medicine of northeastern China. This crude drug is officially recorded in the Chinese… read more here.
Keywords: medicine; dmso ppm; mhz; chinensis ... See more keywords
Interferometric Observations of the Quiet Sun at 20 and 25 MHz in May 2014
Sign Up to like & getrecommendations! Published in 2018 at "Solar Physics"
DOI: 10.1007/s11207-018-1316-3
Abstract: We present the results of solar observations at 20 and 25 MHz with the Ukrainian T-shaped Radio telescope of the second modification (UTR-2) in the interferometric session from 27 May to 2 June 2014. In… read more here.
Keywords: may 2014; mhz; quiet sun; interferometric observations ... See more keywords
Coexistence conditions of LTE-advanced at 3400–3600 MHz with TVRO at 3625–4200 MHz in Brazil
Sign Up to like & getrecommendations! Published in 2019 at "Wireless Networks"
DOI: 10.1007/s11276-017-1544-8
Abstract: In Brazil, the 3625–4200 MHz frequency band (C-band) is widely used by TV receive-only (TVRO) application in the fixed satellite service (FSS). The 3400–3600 MHz adjacent band can be used by International Mobile Telecommunications (IMT) systems, but… read more here.
Keywords: 3625 4200; band; 4200 mhz; mhz ... See more keywords
Multi-frequencies GPR measurements for delineating the shallow subsurface features of the Yushu strike slip fault
Sign Up to like & getrecommendations! Published in 2019 at "Acta Geophysica"
DOI: 10.1007/s11600-019-00271-9
Abstract: In order to assess Ground penetrating radar (GPR) for imaging the shallow subsurface geometry and characteristics of the fault in Yushu area, details GPR measurements with 25 MHz, 100 MHz and 250 MHz frequencies antenna were firstly conducted… read more here.
Keywords: fault; mhz; gpr; shallow subsurface ... See more keywords
Microwave dielectric properties of Malaysian palm oil and agricultural industrial biomass and biochar during pyrolysis process
Sign Up to like & getrecommendations! Published in 2017 at "Fuel Processing Technology"
DOI: 10.1016/j.fuproc.2017.06.006
Abstract: Abstract Advancement in the design and development of microwave (MW) processing technology greatly depends on the knowledge of dielectric properties. This study is dedicated to provide new and useful data on the dielectric properties of… read more here.
Keywords: biomass; pyrolysis process; dielectric properties; mhz ... See more keywords
Design and study of a metamaterial based sensor for the application of liquid chemicals detection
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Research and Technology"
DOI: 10.1016/j.jmrt.2020.07.034
Abstract: Abstract The detection of chemical samples having close dielectric response is a big challenge as the detection principle is driven by the variations in the dielectric parameters of the investigated samples. In the current work,… read more here.
Keywords: chemicals detection; mhz; metamaterial based; based sensor ... See more keywords
Tunable Er-doped fiber optical frequency comb with a repetition rate adjustment larger than 1.6 MHz
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126376
Abstract: Abstract Femtosecond optical frequency combs play important roles in various scientific and technical fields. For example, they can be used for frequency measurements, distance measurements, and in precision spectroscopy. The repetition rate of this type… read more here.
Keywords: optical frequency; repetition rate; mhz; repetition ... See more keywords
Performance characterisation of a passive cavitation detector optimised for subharmonic periodic shock waves from acoustic cavitation in MHz and sub-MHz ultrasound.
Sign Up to like & getrecommendations! Published in 2018 at "Ultrasonics sonochemistry"
DOI: 10.1016/j.ultsonch.2018.01.007
Abstract: We describe the design, construction and characterisation of a broadband passive cavitation detector, with the specific aim of detecting low frequency components of periodic shock waves, with high sensitivity. A finite element model is used… read more here.
Keywords: cavitation; mhz; characterisation; shock waves ... See more keywords
Microwave Spectra and Theoretical Calculations for Two Structural Isomers of Methylmanganese Pentacarbonyl.
Sign Up to like & getrecommendations! Published in 2020 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.0c00524
Abstract: The first microwave rotational spectra for two structural isomers of methylmanganese pentacarbonyl were measured in the 4-9 GHz range using a pulsed-beam Fourier transform microwave spectrometer. The spectra for the two isomers, a symmetric-top structure… read more here.
Keywords: two structural; isomers methylmanganese; mhz; structural isomers ... See more keywords