Results 21 to 30 of about 4,847,627 (305)

Isolation Properties of Low-Profile Magnetorheological Fluid Mounts

open access: yesFluids, 2021
This study evaluates the stiffness and damping characteristics of low-profile magnetorheological (MR) fluid mounts (MRFM) to provide a better understanding of the vibration improvements offered by such mounts, as compared with conventional elastomeric ...
Mehdi Ahmadian, Brian M. Southern
doaj   +1 more source

MicroRNA-551b expression profile in low and high-grade cervical intraepithelial neoplasia [PDF]

open access: yes, 2018
OBJECTIVE: To evaluate the expression of microRNA (miR)-551b in patients with low and high grade cervical intraepithelial neoplasia (CIN) and to find an association with high-risk Human Papillomavirus (HR-HPV) infection-related prognostic biomarkers ...
Bordi, G   +7 more
core   +1 more source

Wideband Transmitarray Antenna Based on Two-Layer Aperture-Coupled Metasurface Unit Cell [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
In this paper, a transmitarray antenna is designed and fabricated based on a two-layer aperture-coupled patch unit cell. The unit cell is composed of two layers of dielectric substrate with a simple narrow rectangular aperture between the layers. Through
Masoumeh Darwish, Hamid Reza Hassani
doaj   +1 more source

Design and Analysis of a Low-profile Microstrip Antenna for 5G Applications using AI-based PSO Approach

open access: yesJournal of Telecommunications and Information Technology, 2023
Microstrip antennas are high gain aerials for low-profile wireless applications working with frequencies over 100 MHz. This paper presents a study and design of a low cost slotted-type microstrip patch antenna that can be used in 5G millimeter wave ...
Krishanu Kundu   +3 more
doaj   +1 more source

Solar Models with Helioseismic Constraints and the Solar Neutrino Problem [PDF]

open access: yes, 2000
Imposing a constraint of the sound-speed profile determined from helioseismology and updating the microphysics, we have revised our seismic solar model, constructed with the assumption of a homogeneous metal abundance distribution, and have shown that ...
Shibahashi, Hiromoto, Watanabe, Satoru
core   +3 more sources

A Low-Profile Dual-Polarized Transmitarray with Enhanced Gain and Beam Steering at Ku Band

open access: yesApplied Sciences
A low profile dual polarized transmitarray antenna, made of three identical layers, is proposed in this paper for Ku-band applications. The transmitarray comprises 22 × 22 symmetrical unit cells.
Md. Imran Khan   +7 more
doaj   +1 more source

Low-Profile Dual-Band Reflector Antenna for High-Frequency Applications

open access: yesSensors, 2023
A high-gain low-profile reflector antenna with dual-band radiation ability is presented in this paper. The antenna achieves a relative 2 dB gain bandwidth of 10% around fl, and a relative 2 dB gain bandwidth of 20%, around fh, where fl and fh are the ...
Senlin Lu, Shi-Wei Qu
doaj   +1 more source

A single meal has the potential to alter brain oxylipin content. [PDF]

open access: yes, 2020
Our objective was to determine whether consumption of a single meal has the potential to alter brain oxylipin content. We examined the cerebrum of mice fed a single high-fat/high-sucrose Western meal or a low-fat/low-sucrose control meal, as well as ...
Aung, HH   +5 more
core   +1 more source

Low-Profile Fully-Printed Multifrequency Monopoles Loaded with Complementary Metamaterial Transmission Line [PDF]

open access: yes, 2015
The design of a new class of multifrequency monopoles by loading a set of resonant-type complementary metamaterial transmission lines (CMTL) is firstly presented. Two types of CMTL elements are comprehensively explored: the former is the epsilon negative
Jinwen Tian, Xue Li
core   +2 more sources

A Wideband Low-Profile Efficiency-Improved Transmitarray Antenna With Over-1-bit Phase-Shifting Elements

open access: yesIEEE Access, 2020
This paper describes a wideband, low-profile and efficiency-improved transmitarray antenna achieved by employing over-1-bit phase-shifting elements and incorporating optimized phase compensation scheme.
Fan Wu   +3 more
doaj   +1 more source

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