Results 41 to 50 of about 23,272 (196)

An 8-bit Digitally-controlled Low NF VGA for 5G Millimeter-wave Beamforming in 65 nm CMOS Technology

open access: yesENP Engineering Science Journal
In this paper, a linear-in-dB digitally controlled variable gain low-noise amplifier (D-VGLNA) designed in 65 nm CMOS process for the 5G mm-wave phase-array subsystem is presented.
Sid Ahmed Tedjini, Sonia Salhi
doaj   +1 more source

Lateral Nasal Artery Perforator Flaps: Anatomic Study and Clinical Applications

open access: yesArchives of Plastic Surgery, 2016
Background Previous studies have investigated facial artery perforators, but have reported inconsistent results regarding lateral nasal artery (LNA) perforators.
Giuseppe AG Lombardo   +4 more
doaj   +1 more source

A Solution for Exosome‐Based Analysis: Surface‐Enhanced Raman Spectroscopy and Artificial Intelligence

open access: yesAdvanced Intelligent Discovery, EarlyView.
Exosomes are emerging as powerful biomarkers for disease diagnosis and monitoring. This review highlights the integration of surface‐enhanced Raman spectroscopy with artificial intelligence to enhance molecular fingerprinting of exosomes. Machine learning and deep learning techniques improve spectral interpretation, enabling accurate classification of ...
Munevver Akdeniz   +2 more
wiley   +1 more source

Spatio-Temporal Variations of High and Low Nucleic Acid Content Bacteria in an Exorheic River. [PDF]

open access: yesPLoS ONE, 2016
Bacteria with high nucleic acid (HNA) and low nucleic acid (LNA) content are commonly observed in aquatic environments. To date, limited knowledge is available on their temporal and spatial variations in freshwater environments.
Jie Liu   +5 more
doaj   +1 more source

Emerging research directions in nanoparticle‐based foam control for bioprocessing: a bibliometric approach

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Overfoaming remains a critical challenge in industrial bioprocesses, compromising mass transfer, operational stability, and downstream efficiency in bioreactors and wastewater treatment systems. This study provides a bibliometric and scientometric assessment of nanoparticle‐enabled foam control to map technological trends and identify research
Antonio Átila Menezes Ferreira   +6 more
wiley   +1 more source

Innovation Pathways to Carbon Efficiency: Disentangling the Effects of AI, R&D, and Clean Energy Blessings on U.S. Environmental Sustainability

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The United States (U.S.) faces challenges in achieving its ambitious net‐zero carbon emissions target by 2050, with current emissions having fallen by less than 1% in 2024. Despite an investment of $500 billion in low‐carbon resources while holding the second‐largest green technology patent portfolio globally, it is further imperative to ...
Md Zubair Ahmad   +5 more
wiley   +1 more source

Associations between health care access and posttraumatic stress disorder symptoms among rural and urban lesbian, gay, bisexual, transgender, and queer adults

open access: yesJournal of Traumatic Stress, EarlyView.
Abstract Lesbian, gay, bisexual, transgender, and queer (LGBTQ+) individuals experience elevated rates of trauma exposure, minority stress, and posttraumatic stress disorder (PTSD). Yet, research examining how geographic location and LGBTQ+ identity shape PTSD outcomes is scant, particularly studies considering structural facilitators and barriers ...
Emily A. Kenyon   +6 more
wiley   +1 more source

Intersectional discrimination, identity conflict, and posttraumatic stress symptoms among bisexual+ people of color

open access: yesJournal of Traumatic Stress, EarlyView.
Abstract Bisexual and other multigender‐attracted (e.g., pansexual, queer) people (bi+) report disproportionately high posttraumatic stress symptoms (PTSS) linked to a high frequency of discrimination and general trauma exposure. Bi+ people of color (POC) may be particularly vulnerable to PTSS given exposure to intersectional discrimination (e.g ...
Roberto Rentería   +5 more
wiley   +1 more source

Toward Highest Frequency, Phase‐Sensitive Electric Field Sensing Enabled by Plasmonic Circuits

open access: yesLaser &Photonics Reviews, EarlyView.
An electromagnetic field sensor using an optical sensor head for distortion‐free, high‐sensitivity measurements with potential for high‐frequency operation is presented. The frequency response is enabled by an antenna‐integrated plasmonic modulator. The sensitivity is calculated, and optimizations to obtain thermal‐background‐limited sensitivity are ...
Michael Baumann   +5 more
wiley   +1 more source

A Ku band high performance low-cost low noise amplifier

open access: yesDianzi Jishu Yingyong
Based on unmatched plastic-package GaAs die and SMT (Surface Mounted Technology) hybrid integration process, a low-cost Ku band 2-stage LNA (Low Noise Amplifier) was realized on single-layer double-side high-frequency PCB (Printed Circuit Board).
Zhang Kai, Liu Shuai, Zhao Xiaodong
doaj   +1 more source

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