Suggested Topics within your search.
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- Physics 1
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441
Frequency-Tunable Tri-Band Metamaterial-Inspired Antenna
Published 2025-01-01“…The prototype antenna has been designed and fabricated using the FR4 substrate with a thickness of 1.6 mm and a dielectric constant of 4.3. The measured return loss and far-field radiation patterns of the fabricated antenna have good agreement with the simulated results. …”
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442
Characterization of Asbestos in Ambient Air During Refractory Material Production from Magnesite Ore
Published 2021-09-01“…It can be commonly found in nature and from which fibre uses in the industry through processing are obtained. It is dielectric and fibrous, having an elastic feature. However, there is limited information about the air quality in terms of asbestos for the companies that produce refractory materials from magnesite ore. …”
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443
Characterization, structural study, Hirshfeld surface, vibrational properties and thermal analysis of a supramolecular hybrid compound: (C8H14N2)4·(TeBr6)3·2(Br)
Published 2025-01-01“…Preliminary insights into its structural features, such as the presence of [TeBr6]2− units and π interactions, suggest potential catalytic activity alongside optoelectronic and dielectric applications, warranting further investigation.…”
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444
Femtosecond laser induced ultrafast interface dynamics between single layer graphene and quartz substrate: A theoretical study
Published 2025-01-01“…SiO2 is the most widely used dielectric substrate for graphene devices. Theoretically investigating the interaction between graphene and SiO2 is vitally important for understanding graphene properties and improving device performance. …”
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445
Design of a Novel Superwideband Dual Port Antenna with Second-Order Hilbert Branches and a Modified T-Decoupling Structure
Published 2023-01-01“…Two SWB antenna units are placed symmetrically on FR4 dielectric substrate to form the SWB-MIMO (multiple-in multiple-out) antenna. …”
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446
Microfluidic Flexible Substrate Integrated Microstrip Antenna Sensor for Sensing of Moisture Content in Lubricating Oil
Published 2020-01-01“…The sensor identifies liquids having different effective dielectric constants by detecting changes in the resonance frequency. …”
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447
Technique of Coaxial Frame in Reflection for the Characterization of Single and Multilayer Materials with Correction of Air Gap
Published 2014-01-01“…Techniques based on fixture probes in reflection are used in microwave reflectometry as a novel diagnostic tool for detection of skin cancers, for complex permittivity measurements on liquid samples and oil shale, and for complex dielectric permittivity of animals’ organs and tissues measurements in microwave band for the needs of modern veterinary medicine. …”
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448
Design and Validation of an Antipodal Vivaldi Antenna with Additional Slots
Published 2019-01-01“…We have designed and fabricated the improved structure of Antipodal Vivaldi Antenna with the help of new dielectric substrate ASTRA®MT77 material. We have chosen a unique substrate material to develop our novel Antipodal Vivaldi Antenna because most research has been done on commonly used materials like FR4, RT Duroid, etc. …”
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449
Into the latent space of capacitive sensors: interpolation and synthetic data generation using variational autoencoders
Published 2025-01-01“…Therefore, this paper proposes the generation of synthetic signals through a Variational Autoencoder (VAE) to enlarge a spectra dataset acquired with a capacitive sensor based on a Dielectric Resonator. Trained with signals of several water/glycerine concentrations, this generative model learns the dataset characteristics and builds a representative latent space. …”
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450
A DR Loaded Substrate Integrated Waveguide Antenna for 60 GHz High Speed Wireless Communication Systems
Published 2014-01-01“…The concept of substrate integrated waveguide (SIW) technology along with dielectric resonators (DR) is used to design antenna/array for 60 GHz communication systems. …”
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451
Real-Time Monitoring Method and Circuit Based on Built-In Reliability Prediction
Published 2024-12-01“…This paper proposes three system-on-chip reliability failure prediction unit circuits: the time-dependent dielectric breakdown prediction circuit, the negative bias temperature instability prediction circuit, and the hot carrier injection prediction circuit. …”
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452
A Quad-Element UWB-MIMO Antenna with Band-Notch and Reduced Mutual Coupling Based on EBG Structures
Published 2018-01-01“…It is printed at the center of the dielectric substrate to lower electromagnetic coupling between the parallel elements. …”
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453
Design and Fabrication of Ultrathin Metallic Phase Shifters for Visible and Near-Infrared Wavelengths
Published 2025-01-01“…The size of optical elements with phase delay that are made from natural birefringent materials is limited; however, fabricating waveplates from dielectric metamaterials is very complex and expensive. …”
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454
Molecular surface descriptors to predict antibody developability: sensitivity to parameters, structure models, and conformational sampling
Published 2024-12-01“…Further, we investigate the sensitivity of these surface descriptors to methodological nuances, such as the choice of interior dielectric constant, hydrophobicity scales, structure prediction methods, and the impact of conformational sampling. …”
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455
Umbrella-Shaped Wideband MIMO Wireless Communication Antenna
Published 2023-12-01“…A Rogers RO3003 substrate with a dielectric structure size of (64.59 × 64.59) mm2. geometrical shape 50-Ohm microstrip lines are used to feed the antenna ports. …”
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456
Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil
Published 2016-01-01“…Different effect mechanisms of dielectric and conductive nanoparticles were also used to describe the difference among three prepared nanofluids.…”
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457
Magnetorefractive effect in metallic Co/Pt nanostructures
Published 2024-04-01“…Effective medium methods were used to calculate the dielectric permittivity of materials. Since the average range of cobalt concentrations was being studied, the Bruggeman approximation was used to establish the effective permittivity of nanostructures. …”
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458
Design of tri-band flexible CPW 4-port slot MIMO antenna for conformal 5G, WIFI 6/6E and X-band applications
Published 2025-02-01“…The antenna is fabricated on a flexible dielectric substrate, and the bending test and human body test results meet the specified requirements. …”
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459
Electronic Structure and Optical Properties of GaAs Doped with Rare-Earth Elements (Sc, Y, La, Ce, and Pr)
Published 2025-01-01“…Investigation of the optical properties revealed that the static dielectric constant increased with La doping but decreased with Y, La, Ce, and Pr doping. …”
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460
Universal Digital Probe Electrometer for Testing Semiconductor Wafers
Published 2023-10-01“…In addition, using photo-EMF it is possible to determine the surface resistance of the plate, some parameters of the dielectric layer on the surface and barrier photo-EMF (JPV). …”
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