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Resource-Efficient FPGA Architecture for Real-Time RFI Mitigation in Interferometric Radiometers.
Sensors (Basel)
December 2024
CommSensLab-UPC, Universitat Politècnica de Catalunya-BarcelonaTech, 08034 Barcelona, Spain.
Interferometric radiometers operating at L-band, such as ESA's SMOS mission, enable crucial Earth observations providing high-resolution measurements of soil moisture, ocean salinity, and other geophysical parameters. However, the increasing electromagnetic spectrum utilization has led to significant Radio Frequency Interference (RFI) challenges, particularly critical given the sensors' fine temperature resolution requirements of less than 1 K. This work presents the hardware implementation of an advanced RFI detection and mitigation algorithm specifically designed for interferometric radiometers, targeting future L-band missions.
View Article and Find Full Text PDFLegislative rebellions and impeachments in a neural network society.
Phys Rev E
November 2024
Instituto de Fisica, Universidade de Sao Paulo, CEP 05315-970, Sao Paulo, SP, Brazil.
Inspired by studies of legislative-executive conflict in modern presidential democracies in South America, we present an agent-based statistical mechanics exploration of the collective, coordinated action of strategic political actors in the legislative chamber and the conditions that may result in premature changes in the executive officeholder, such as a president's impeachment or a motion of no confidence in a prime minister. The legislative actors are represented by information processing agents equipped with a neural network, and emit opinions about issues in the presidential agenda. We construct a Hamiltonian which is the sum of the costs for the agents to hold a specific set of political positions.
View Article and Find Full Text PDFClinical practice guidelines for the care of patients with a chronic subdural haematoma: multidisciplinary recommendations from presentation to recovery.
Br J Neurosurg
November 2024
Department of Clinical Neurosurgery, University of Cambridge, Cambridge, UK.
Article Synopsis
- A chronic subdural haematoma (cSDH) is an increasingly common condition in older adults, characterized by a collection of fluid and blood in the subdural space, with no existing guidelines for optimal care from symptom onset to recovery.
- This paper outlines the creation of consensus-based recommendations for the management of cSDH, developed by a multidisciplinary committee that included healthcare professionals, patients, and caregivers.
- The final guideline features 67 recommendations spread across eight themes, addressing key aspects such as diagnosis, surgical procedures, non-operative management, and post-operative care despite a general lack of high-quality evidence in the literature.
Using spatial video and deep learning for automated mapping of ground-level context in relief camps.
Int J Health Geogr
November 2024
Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA.
Background: The creation of relief camps following a disaster, conflict or other form of externality often generates additional health problems. The density of people in a highly stressed environment with questionable safe food and water access presents the potential for infectious disease outbreaks. These camps are also not static data events but rather fluctuate in size, composition, and level and quality of service provision.
View Article and Find Full Text PDFAssessing the detection of floating plastic litter with advanced remote sensing technologies in a hydrodynamic test facility.
Sci Rep
October 2024
Antenna and Sub-Millimeter Wave Section, European Space Agency (ESA), Noordwijk, 2200 AG, The Netherlands.
Remote sensing technologies have the potential to support monitoring of floating plastic litter in aquatic environments. An experimental campaign was carried out in a large-scale hydrodynamic test facility to explore the detectability of floating plastics in ocean waves, comparing and contrasting different microwave and optical remote sensing technologies. The extensive experiments revealed that detection of plastics was feasible with microwave measurement techniques using X and Ku-bands with VV polarization at a plastic threshold concentration of 1 item/m or 1-10 g/m.
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