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9841
Electromagnetic Shielding Characteristics of Eco-Friendly Foamed Concrete Wall
Published 2017-01-01“…It was confirmed that electromagnetic signals were better blocked when the foam content was low and the BFS content was high in the measured frequency bands (1–8 GHz) and that approximately 90% of the electromagnetic signals were blocked over 4 GHz.…”
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9842
Neo-Characterization in the Neo-Victorian Novel
Published 2015-12-01“…Hopefully, this cursory, panoramic overview might shed some light on the centrality of character (character-building, -skewing, -bending, -sapping and so forth) in operating a shift from Victorian characterization to what may be designated as neo-Victorian neo-characterization; i.e. a renewed return to a familiar novelistic cast. …”
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9843
Suppression of Specular Reflections by Metasurface with Engineered Nonuniform Distribution of Reflection Phase
Published 2015-01-01“…It is observed that, in a fairly wide frequency band (from 3.6 to 5.5 GHz), the presented example is capable of suppressing the specular reflections of conducting plates significantly (by more than 7 dB) for two orthogonal incident polarizations.…”
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9844
Wideband Circularly Polarized SIW Antenna Array That Uses Sequential Rotation Feeding
Published 2014-01-01“…A wideband right-handed circularly polarized (CP) substrate integrated waveguide- (SIW-) based diamond ring-slot antenna array at the X-band is presented in this study. …”
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9845
A CNN-Based Microwave Imaging System for Detecting Watermelon Ripeness
Published 2025-01-01“…The integration of a non-invasive microwave imaging system with a machine learning algorithm could improve food quality and food safety. …”
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9846
New Flexible Medical Compact Antenna: Design and Analysis
Published 2012-01-01“…For example, you can better locate a diseased area by monitoring temperature inside the human body. In order to establish efficient wireless links in such an environment, a special attention should be paid to the antenna design. …”
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9847
Microwave Assisted Synthesis Spectral and Antibacterial Investigations on Complexes of Mn(II) With Amide Containing Ligands
Published 2007-01-01“…The diffuse reflectance spectrums of the complexes show bands in the region 20,000 cm-1 to 26,000 cm-1 assignable to 6A1g → 4T2g and 6A1g → 4E1g transitions. …”
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9848
High-Efficiency Continuous Wave 16 W–7.5 GHz Power Amplifier With a GaN Transistor in Plastic Packaging
Published 2025-01-01“…The fabricated amplifier achieved in continuous wave (CW) a saturated output power of 41.7–42.4 dBm in the entire frequency band of 7.25–7.85 GHz while maintaining a drain efficiency of 35–39 %. …”
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9849
A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method
Published 2022-01-01“…The proposed antenna provides multiband wireless applications in the (1–10) GHz frequency band, and the return loss of the proposed fractal antenna has been improved using negative permittivity and negative permeability metamaterial structure.…”
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9850
Fabrication of TiO2 Nanofilm Photoelectrodes on Ti Foil by Ti Ion Implantation and Subsequent Annealing
Published 2014-01-01“…The photoelectrochemical (PEC) and X-ray photoelectron spectroscopy (XPS) spectra of the valence band demonstrate that the samples annealed at 400 and 500°C show the n-type property. …”
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9851
Development and Prospect of Satellite 5G Technology
Published 2021-03-01Subjects: Get full text
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9852
Review on strategic technology of dense connection for the future mobile network
Published 2021-04-01“…Based on reviews of the work regarding dense connection, the strategic technologies for dense connection in the upcoming future mobile communication were illuminated.The state of the art of dense connection, including network architecture and related technologies, the transmission technology of dense connection, and the access technology of dense connection were analyzed.A flexible access network structure with verity of connection forms coexisting was proposed.Aiming at the asymmetry of uplink and downlink coverage and considering the QoS requirements of users, a dense terminal access scheme based on the uplink-and-downlink-separated network architecture was proposed.The necessity of the three-dimensional network architecture and the integration of communication and computing to meet the needs of large-scale networking and dense connection were illuminated.Based on technologies such as terahertz and block chain, the future strategic exploratory trends such as the upward extension of frequency bands and the sharing of spectrum resources were discussed and prospected.…”
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9853
Symmetry Breaking as a Basis for Characterization of Dielectric Materials
Published 2025-01-01“…Based on the analytical equation, an optimization procedure and linearized model for a sensing structure is obtained, specifically for X-band characterization of FR4 substrates. The theoretical results of the model are validated with full wave simulations and experimentally.…”
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9854
RESEARCH ON THE FATIGUE LIFE OF THE BOLTS AT ENGINE MOUNTS BASED ON ACCELERATION SIGNAL
Published 2018-01-01“…First,by macrofracture observation and mechanical model analysis,the relationship between the main stress load and acceleration load of different condition was defined.Then according to the S-N curve of engine mount bolt,and applying the acceleration signal in different working condition,bending moment and tensile stress in time series was calculated. …”
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9855
Analysis of the Influence of Clutch Drag Torque on the Efficiency of Hydro-mechanical Continuously Variable Transmission
Published 2022-04-01“…The calculation results show that the band and row loss of multiple friction clutches in HMCVT has a great influence on its transmission efficiency.…”
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9856
EQUIVALENT STIFFNESS IDENTIFICATION FOR JOINT OF ROTOR BEARING SYSTEM
Published 2019-01-01“…Secondly, the first four bending natural frequencies of the rotor bearing system were acquired with experimental modal analysis. …”
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9857
Effects of Kaolin Surface Treatments on the Thermomechanical Properties and on the Degradation of Polypropylene
Published 2012-01-01“…FTIR results showed the appearance of new bands characteristic of the interactions between urea and kaolinite and the alkylammonium and kaolinite. …”
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9858
The Application of Terahertz Technology in Corneas and Corneal Diseases: A Systematic Review
Published 2025-01-01“…Terahertz (THz) waves reside in the electromagnetic spectrum between the microwave and infrared bands. In recent decades, THz technology has demonstrated its potential for biomedical applications. …”
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9859
Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge
Published 2019-08-01“…For the flexible hinge of compliant mechanism under the action of alternating symmetrical cyclic load, the stress concentration in the weakest area of the flexible hinge is easy to cause, resulting in the fatigue failure of the flexure hinge,taking the elliptical flexible hinges in compliant mechanisms as the research object, based on the theory of pure bending in material mechanics, the calculation formula of maximum concentrated stress at the notch of an elliptical flexure hinge is derived. …”
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9860
Broadband and fabrication tolerant polarization splitter–rotator on thin-film lithium niobate
Published 2025-01-01“…The experimental results indicate that the fabricated device exhibits an insertion loss of less than 0.5 dB and extinction ratios exceeding 20 dB over a 130-nm band, with the potential to extend up to 250 nm as predicted by simulations. …”
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