Results 121 to 130 of about 16,921 (260)

Numerical Results for the System Noise Temperature of an Aperture Array Tile and Comparison with Measurements [PDF]

open access: yes, 2011
The purpose of this report is to document the noise performance of a complex beamforming array antenna system and to characterize the recently developed noise measurement facility called THACO, which was developed at ASTRON.
Bakker, L.   +3 more
core  

Preliminary Study on Unit Commitment for Renewable Energy Integration Considering Operation Cost and Life Cycle Assessment

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Most countries, including Japan, are focused on achieving net‐zero greenhouse gas (GHG) emissions by 2050, which requires quick action. Despite the increasing level of renewable power generation in power grids, fossil fuel power plants still have a significant role in producing GHG emissions, causing serious environmental issues.
Kadyrbek Kozhobekov   +4 more
wiley   +1 more source

THE ANALOG CITY: Maintaining Everyday Life Through Repair and Jugaad

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Urban scholarship consistently discusses improvisation and heterogeneity as central to urban life in the global South. In this article, I bring together scholarship on urban improvisation and the digital world of smart cities to understand the city as analog.
Julia Corwin
wiley   +1 more source

Method for precision forming of low-cost, thin-walled slotted waveguide arrays for the SPS [PDF]

open access: yes
A method for the precision forming of thin walled, slotted waveguide arrays was devised. Models were constructed with temporary tools and evaluated.
Brown, W. C.
core   +1 more source

Quality Regulation and Unexpected Gaming: Evidence From Mandating Flight Delay Compensation

open access: yesJournal of Economics &Management Strategy, EarlyView.
ABSTRACT Policies that target a single aspect of agents' motivation may lead to their diminished efforts in other areas. This paper examines the effect of the European Union's flight delay compensation policy on flight on‐time performance by exploiting a unique policy variation in a difference‐in‐differences framework.
Jingyi Xing
wiley   +1 more source

Simple Compact UWB Vivaldi Antenna Arrays for Breast Cancer Detection

open access: yesTelecom
In this study, at ultra-wideband (UWB) frequency band (3.1–10.6 GHz), we propose the use of compact 2:1 and 3:1 nonuniform transmission line Wilkinson power dividers (NTL WPDs) as feeding networks for simple 2 × 1 linear UWB Vivaldi tapered and ...
Sahar Saleh, Tale Saeidi, Nick Timmons
doaj   +1 more source

Unmarked Emotional States and the Affective Anchoring of Continuity

open access: yesSociological Forum, EarlyView.
ABSTRACT Narratives around emotions often foreground remarkable episodes that interrupt situations, producing a “rollercoaster” image of emotional life that leaves its stability underdescribed. To analyze the emotional dimension of social continuity, this article theorizes unmarked emotional states (UES): culturally default, interactionally unobtrusive
Lorenzo Sabetta
wiley   +1 more source

Hypoxia and hypercapnia elicit overlapping but distinct skeletal muscle toxicities

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Hypoxia and hypercapnia cause overlapping skeletal muscle phenotypes, including atrophy, change in myofibre metabolic profile and myogenic response to injury. Both signals operate via distinct cellular pathways. Abstract Skeletal muscle dysfunction is strongly associated with elevated mortality in acute and chronic pulmonary ...
Joseph Balnis, Ariel Jaitovich
wiley   +1 more source

Coaxial Dipole Array With Switching Transmit Sensitivities for Ultrahigh Field MRI

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 6, Page 3608-3615, June 2026.
ABSTRACT Purpose To investigate dipole antennas with electronically switchable transmit field patterns to improve flip angle homogeneity in ultra‐high field MRI. Methods Reconfigurable dipole elements that could produce two distinct electronically switchable B1+ field profiles were conceptualized and constructed.
Dario Bosch   +5 more
wiley   +1 more source

Coplanar waveguide feeds for phased array antennas [PDF]

open access: yes
The design and performance is presented of the following Coplanar Waveguides (CPW) microwave distribution networks for linear as well as circularly polarized microstrip patches and dipole arrays: (1) CPW/Microstrip Line feed; (2) CPW/Balanced Stripline ...
Lee, Richard Q., Simons, Rainee N.
core   +1 more source

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