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156 Results Found

  • Article
  • Open Access
2 Citations
1,713 Views
14 Pages

10 December 2022

Masonry structures are very vulnerable to lateral forces such as earthquakes. In particular, for existing masonry buildings that have not been designed for earthquake resistance, appropriate seismic resistance retrofit is required. In this study, ult...

  • Article
  • Open Access
4 Citations
3,088 Views
29 Pages

Towards Operational Fiducial Reference Measurement (FRM) Data for the Calibration and Validation of the Sentinel-3 Surface Topography Mission over Inland Waters, Sea Ice, and Land Ice

  • Elodie Da Silva,
  • Emma R. Woolliams,
  • Nicolas Picot,
  • Jean-Christophe Poisson,
  • Henriette Skourup,
  • Geir Moholdt,
  • Sara Fleury,
  • Sajedeh Behnia,
  • Vincent Favier and
  • Laurent Arnaud
  • + 29 authors

5 October 2023

The Copernicus Sentinel-3 Surface Topography Mission (STM) Land Altimetry provides valuable surface elevation information over inland waters, sea ice, and land ice, thanks to its synthetic aperture radar (SAR) altimeter and its orbit that covers high...

  • Project Report
  • Open Access
28 Citations
5,978 Views
38 Pages

Fiducial Reference Measurements for Satellite Ocean Colour (FRM4SOC)

  • Andrew Clive Banks,
  • Riho Vendt,
  • Krista Alikas,
  • Agnieszka Bialek,
  • Joel Kuusk,
  • Christophe Lerebourg,
  • Kevin Ruddick,
  • Gavin Tilstone,
  • Viktor Vabson and
  • Craig Donlon
  • + 1 author

22 April 2020

Earth observation data can help us understand and address some of the grand challenges and threats facing us today as a species and as a planet, for example climate change and its impacts and sustainable use of the Earth’s resources. However, i...

  • Article
  • Open Access
11 Citations
3,304 Views
25 Pages

11 September 2021

Buttressed arches represent some of the most vulnerable elements in historical masonry buildings under seismic actions. Given their structural, architectural and often artistic importance, it is paramount to investigate effective retrofitting measure...

  • Article
  • Open Access
303 Views
18 Pages

The Financial Risk Meter (FRM) for Kuwait: A Tail-Event Perspective on Systemic Risk and Economic Forecasting

  • Talat Ulussever,
  • Yousef Abdulrazzaq,
  • Onur Polat and
  • Hasan Murat Ertuğrul

21 November 2025

This study develops and applies the Financial Risk Meter (FRM) for Kuwait, a novel measure of systemic risk tailored for a commodity-dependent emerging economy. Using Lasso quantile regression, the FRM captures tail-event co-movements among key finan...

  • Article
  • Open Access
5 Citations
3,928 Views
21 Pages

15 August 2024

The comparison between Federal Equivalent Method (FEM) and Federal Reference Method (FRM) monitors in measuring fine particulate matter (PM2.5) concentrations frequently raises concerns about the accuracy and reliability of data. The comparability, o...

  • Proceeding Paper
  • Open Access
3 Citations
2,144 Views
8 Pages

Coniferous seeds as an integral part of Forest Reproductive Material (FRM) are a fairly valuable product that is transported by trade operations over long distances. Seed quality determines the rate of reforestation. Improving quality indicators and...

  • Article
  • Open Access
3 Citations
2,270 Views
14 Pages

Deep Feature Retention Module Network for Texture Classification

  • Sung-Hwan Park,
  • Sung-Yoon Ahn and
  • Sang-Woong Lee

9 May 2024

Texture describes the unique features of an image. Therefore, texture classification is a crucial task in computer vision. Various CNN-based deep learning methods have been developed to classify textures. During training, the deep-learning model unde...

  • Article
  • Open Access
821 Views
29 Pages

2 October 2025

The rapid accumulation of public debt raises global concern over its implications for financial markets. This study examines the effect of domestic public debt on financial development in Middle East and North Africa (MENA) countries, a region marked...

  • Article
  • Open Access
15 Citations
2,328 Views
20 Pages

18 December 2023

The advent of deep learning has significantly propelled the utilization of neural networks for Synthetic Aperture Radar (SAR) ship detection in recent years. However, there are two main obstacles in SAR detection. Challenge 1: The multiscale nature o...

  • Communication
  • Open Access
24 Citations
4,992 Views
12 Pages

Fiducial Reference Measurements (FRMs): What Are They?

  • Philippe Goryl,
  • Nigel Fox,
  • Craig Donlon and
  • Paolo Castracane

18 October 2023

In recent years, the concept of a Fiducial Reference Measurement (FRM) has been developed to highlight the need for precise and well-characterised measurements tailored explicitly to the post-launch calibration and validation (Cal/Val) of Earth obser...

  • Article
  • Open Access
16 Citations
3,959 Views
25 Pages

20 May 2022

Over recent decades, the demand for smarter and more intelligent manufacturing systems has increased in order to meet the growing requirements of customers. Manufacturing systems are termed as smart manufacturing systems (SMSs); these systems are cap...

  • Article
  • Open Access
26 Citations
6,307 Views
39 Pages

The ESA Permanent Facility for Altimetry Calibration: Monitoring Performance of Radar Altimeters for Sentinel-3A, Sentinel-3B and Jason-3 Using Transponder and Sea-Surface Calibrations with FRM Standards

  • Stelios Mertikas,
  • Achilleas Tripolitsiotis,
  • Craig Donlon,
  • Constantin Mavrocordatos,
  • Pierre Féménias,
  • Franck Borde,
  • Xenophon Frantzis,
  • Costas Kokolakis,
  • Thierry Guinle and
  • George Vergos
  • + 2 authors

16 August 2020

This work presents the latest calibration results for the Copernicus Sentinel-3A and -3B and the Jason-3 radar altimeters as determined by the Permanent Facility for Altimetry Calibration (PFAC) in west Crete, Greece. Radar altimeters are used to pro...

  • Article
  • Open Access
35 Citations
5,211 Views
26 Pages

Fiducial Reference Measurements for Vegetation Bio-Geophysical Variables: An End-to-End Uncertainty Evaluation Framework

  • Luke A. Brown,
  • Fernando Camacho,
  • Vicente García-Santos,
  • Niall Origo,
  • Beatriz Fuster,
  • Harry Morris,
  • Julio Pastor-Guzman,
  • Jorge Sánchez-Zapero,
  • Rosalinda Morrone and
  • James Ryder
  • + 3 authors

12 August 2021

With a wide range of satellite-derived vegetation bio-geophysical products now available to users, validation efforts are required to assess their accuracy and fitness for purpose. Substantial progress in the validation of such products has been made...

  • Article
  • Open Access
5 Citations
2,535 Views
39 Pages

Fiducial Reference Measurement for Greenhouse Gases (FRM4GHG)

  • Mahesh Kumar Sha,
  • Martine De Mazière,
  • Justus Notholt,
  • Thomas Blumenstock,
  • Pieter Bogaert,
  • Pepijn Cardoen,
  • Huilin Chen,
  • Filip Desmet,
  • Omaira García and
  • David W. T. Griffith
  • + 16 authors

23 September 2024

The Total Carbon Column Observing Network (TCCON) and the Infrared Working Group of the Network for the Detection of Atmospheric Composition Change (NDACC-IRWG) are two ground-based networks that provide the retrieved concentrations of up to 30 atmos...

  • Article
  • Open Access
3 Citations
1,271 Views
15 Pages

27 October 2024

Mobile technology is currently trending toward supporting multiple communication standards on a single device. This means that some reconfigurable techniques must be the foundation of their design. The two essential requirements of channel filters ar...

  • Article
  • Open Access
2 Citations
1,845 Views
26 Pages

Toughness of Natural Hydraulic Lime Fibre-Reinforced Mortars for Masonry Strengthening Overlay Systems

  • João A. P. P. Almeida,
  • Joaquim A. O. Barros and
  • Eduardo N. B. Pereira

27 February 2024

Masonry structures are susceptible to damage and collapse due to seismic actions, a problem in many urban areas. To address this issue, researchers are studying the use of fibre-reinforced mortars as overlay strengthening systems. This study assessed...

  • Review
  • Open Access
43 Citations
10,804 Views
43 Pages

European Space Agency (ESA) Calibration/Validation Strategy for Optical Land-Imaging Satellites and Pathway towards Interoperability

  • Fabrizio Niro,
  • Philippe Goryl,
  • Steffen Dransfeld,
  • Valentina Boccia,
  • Ferran Gascon,
  • Jennifer Adams,
  • Britta Themann,
  • Silvia Scifoni and
  • Georgia Doxani

30 July 2021

Land remote sensing capabilities in the optical domain have dramatically increased in the past decade, owing to the unprecedented growth of space-borne systems providing a wealth of measurements at enhanced spatial, temporal and spectral resolutions....

  • Article
  • Open Access
8 Citations
2,603 Views
38 Pages

Fiducial Reference Measurements for Air Quality Monitoring Using Ground-Based MAX-DOAS Instruments (FRM4DOAS)

  • Michel Van Roozendael,
  • Francois Hendrick,
  • Martina M. Friedrich,
  • Caroline Fayt,
  • Alkis Bais,
  • Steffen Beirle,
  • Tim Bösch,
  • Monica Navarro Comas,
  • Udo Friess and
  • Dimitris Karagkiozidis
  • + 12 authors

2 December 2024

The UV–Visible Working Group of the Network for the Detection of Atmospheric Composition Changes (NDACC) focuses on the monitoring of air-quality-related stratospheric and tropospheric trace gases in support of trend analysis, satellite validat...

  • Review
  • Open Access
34 Citations
9,811 Views
11 Pages

Neutron Imaging in Cultural Heritage Research at the FRM II Reactor of the Heinz Maier-Leibnitz Center

  • Burkhard Schillinger,
  • Amélie Beaudet,
  • Anna Fedrigo,
  • Francesco Grazzi,
  • Ottmar Kullmer,
  • Michael Laaß,
  • Malgorzata Makowska,
  • Ingmar Werneburg and
  • Clément Zanolli

14 January 2018

Neutron Imaging is ideally suited for applications in cultural heritage even at small reactors with moderate image resolution. However, recently, high resolution imaging is being increasingly used for advanced studies, especially in paleontology. The...

  • Article
  • Open Access
456 Views
35 Pages

Laboratory Calibration Comparison of Hyperspectral Ocean Color Radiometers in the Frame of the FRM4SOC Phase 2 Project

  • Viktor Vabson,
  • Ilmar Ansko,
  • Agnieszka Bialek,
  • Michael E. Feinholz,
  • Joel Kuusk,
  • Ryan Lamb,
  • Sabine Marty,
  • Michael Ondrusek,
  • Clemens Rammeloo and
  • Eric Rehm
  • + 4 authors

12 November 2025

Variability across different calibration laboratories can impact the consistency of ocean color data; this study addresses that challenge through a coordinated comparison of spectral irradiance and radiance calibrations. As part of the Fiducial Refer...

  • Abstract
  • Open Access
1,730 Views
1 Page

Taxus baccata (European yew) is native to Greece, which hosts the most southeastern populations of the species. It is a medically interesting conifer due to its tetracyclic diterpenes, with the anticancer agent paclitaxel (taxol) being the most well-...

  • Article
  • Open Access
5 Citations
2,285 Views
15 Pages

29 November 2022

Three experiments were performed to explore (i) the complete replacement of fish meal (FM) with a combination of fish residue meal (FRM, 65% round discarded fish + 35% byproduct), soy protein concentrate (SPC) from soymilk and corn gluten meal (CGM)...

  • Article
  • Open Access
14 Citations
4,929 Views
15 Pages

31 July 2020

Food resource management (FRM) behaviors are key components within nutrition education programs designed to help food insecure households maximize their food dollars. However, little is known about the association between FRM self-confidence and fina...

  • Article
  • Open Access
10 Citations
3,338 Views
31 Pages

Valorization of Vegetal Fibers (Hemp, Flax, Miscanthus and Bamboo) in a Fiber Reinforced Screed (FRS) Formulation

  • Sergio Pons Ribera,
  • Rabah Hamzaoui,
  • Johan Colin,
  • Laetitia Bessette and
  • Marie Audouin

9 March 2023

A persistent rise in the costs of construction materials has led to the need to address this problem in line with the Sustainable Development Goals. This research employed vegetal soft and rigid fibers in a screed mortar to produce a sustainable fabr...

  • Article
  • Open Access
3 Citations
3,195 Views
14 Pages

Dothistroma septosporum Not Detected in Pinus sylvestris Seed Trees from Investigated Stands in Southern Poland

  • Pola Wartalska,
  • Tomasz Oszako,
  • Sławomir Bakier,
  • Lassaâd Belbahri,
  • Tadeusz Malewski,
  • Tom Hsiang,
  • Elżbieta Popowska-Nowak and
  • Justyna Nowakowska

28 September 2021

In recent years, the decline of pine stands in Europe, including Poland, has been caused by the emerging needle pathogen Dothistroma septosporum. Although this fungus appears to preferentially infect Pinus pini, P. pinaster or P. radiata in Southern...

  • Article
  • Open Access
4 Citations
4,025 Views
16 Pages

Assessing Flight Crew Fatigue under Extra Augmented Crew Schedule Using a Multimodality Approach

  • Yan Li,
  • Jibo He,
  • Shi Cao,
  • Jiajie Zheng,
  • Yazhou Dou,
  • Chenxi Liu and
  • Xufeng Liu

31 October 2023

During the COVID-19 pandemic, the question of how to reduce the risk of viral infection for international airline pilots without increasing the risk of fatigue was a novel and urgent theoretical and practical problem, which had never been encountered...

  • Article
  • Open Access
16 Citations
3,081 Views
12 Pages

29 April 2023

Spatial variation of indoor and outdoor PM2.5 within three states for a five-year period is studied using regulatory and low-cost PurpleAir monitors. Most of these data were collected in an earlier study (Wallace et al., 2022 Indoor Air 32:13105) inv...

  • Conference Report
  • Open Access
31 Citations
11,940 Views
9 Pages

It is evident that despite efforts directed at mitigating the risk of fatigue through the adoption of hours of work and rest regulations and development of codes and guidelines, fatigue still remains a concern in shipping. Lack of fatigue management...

  • Article
  • Open Access
1 Citations
2,808 Views
11 Pages

This investigation is motivated by the need for the development of polymer coatings containing inorganic flame-retardant materials (FRMs) and the replacement of toxic halogenated FRMs. A green strategy is reported for the fabrication of poly(ethyl me...

  • Article
  • Open Access
2 Citations
996 Views
26 Pages

Performance of High Strength Fiber Reinforced Mortar Made with Ceramic Powder, Metakaolin, and Magnetized Water

  • Osama Youssf,
  • Khalid A. Eltawil,
  • Mohamed M. Yousry Elshikh and
  • Mostafa M. Keshta

In recent years, there has been a notable concern about the production of cementitious composites due to its high cement consumption and the corresponding carbon footprint. This has led to significant progress within the construction sector in integr...

  • Article
  • Open Access
10 Citations
4,418 Views
17 Pages

Effects of Increasing Doses of Lactobacillus Pre-Fermented Rapeseed Product with or without Inclusion of Macroalgae Product on Weaner Piglet Performance and Intestinal Development

  • Gizaw Dabessa Satessa,
  • Paulina Tamez-Hidalgo,
  • Søren Kjærulff,
  • Einar Vargas-Bello-Pérez,
  • Rajan Dhakal and
  • Mette Olaf Nielsen

27 March 2020

This study evaluated the effects of increasing doses of pre-fermented rapeseed meal (FRM) without or with inclusion of the brown macroalgae Ascophyllum nodosum (AN) on weaner piglets’ performance and gut development. Ten days pre-weaning, stand...

  • Article
  • Open Access
9 Citations
2,422 Views
14 Pages

Analysis and Optimization of a Novel Flux Reversal Machine with Auxiliary Teeth

  • Libing Jing,
  • Kun Yang,
  • Yuting Gao,
  • Zhangtao Kui and
  • Zeyu Min

25 November 2022

As a typical representative of the stator permanent magnet (PM) machines, the flux reversal machines (FRMs) have a simple structure, high availability of PMs, and high efficiency, making them suitable for direct drive applications. However, the PMs o...

  • Article
  • Open Access
4 Citations
1,991 Views
17 Pages

Performance Evaluation of Asphalt and Asphalt Mixtures Modified by Fuel-Resistant Admixture

  • Shuguang Zhang,
  • Meng Tu,
  • Wenchang Liu,
  • Xiaobo Du and
  • Hongchao Zhang

28 February 2024

In the course of asphalt pavement usage, exposure to fuel infiltration accelerates particle detachment, leading to the occurrence of problems such as looseness and peeling. The aim of this study was to comprehensively evaluate the impact of a fuel-re...

  • Article
  • Open Access
2 Citations
2,558 Views
17 Pages

Optimum Design of High-Speed Single-Phase Flux Reversal Motor with Reduced Torque Ripple

  • Vladimir Dmitrievskii,
  • Vladimir Prakht,
  • Vadim Kazakbaev and
  • Dmitry Golovanov

31 August 2020

Single-phase motors are used in low-power, cost-effective, variable-speed applications. As a replacement to traditional single-phase synchronous motors with magnets on the rotor, single-phase flux reversal motors (FRMs) with a rugged and reliable too...

  • Article
  • Open Access
11 Citations
7,274 Views
11 Pages

3 November 2019

Foot reflexology massage (FRM) has positive effects on cardiovascular and haemodynamic functions. However, information regarding the physiological changes after FRM post exercise-stress is limited. This study investigated the acute effects of FRM on...

  • Article
  • Open Access
2,107 Views
12 Pages

Dietary Iodine Can Effectively Alleviate the Adverse Effects of Fermented Rapeseed Meal on the Growth, Liver Health, and Antioxidant Capacity of Tilapia (GIFT, Oreochromis niloticus)

  • Di Peng,
  • Ya-Xue Li,
  • Li-Xue Dong,
  • Ke Cheng,
  • Hua Wen,
  • Juan Tian,
  • Jian-Min Zhang,
  • Yang-Yang Liu,
  • Wei-Hua Gao and
  • Yong Min
  • + 2 authors

8 December 2024

An 8-week feeding trial was conducted to evaluate the effects of dietary fermented rapeseed meal (FRM), potassium iodide, and their interactions on growth performance, approximate composition, and antioxidant capacity in tilapia, Oreochromis niloticu...

  • Article
  • Open Access
8 Citations
2,733 Views
25 Pages

This paper examines the effectiveness of using carbon fabric-reinforced matrix (C-FRM) composites to improve the shear response of reinforced concrete (RC) deep beams. Ten RC deep beams were tested. Test variables included the presence of internal st...

  • Article
  • Open Access
21 Citations
7,864 Views
20 Pages

Impact of Dietary Supplementation of Lactic Acid Bacteria Fermented Rapeseed with or without Macroalgae on Performance and Health of Piglets Following Omission of Medicinal Zinc from Weaner Diets

  • Gizaw D. Satessa,
  • Paulina Tamez-Hidalgo,
  • Yan Hui,
  • Tomasz Cieplak,
  • Lukasz Krych,
  • Søren Kjærulff,
  • Grete Brunsgaard,
  • Dennis S. Nielsen and
  • Mette O. Nielsen

15 January 2020

The feeding of medicinal zinc oxide (ZnO) to weaner piglets will be phased out after 2022 in Europe, leaving pig producers without options to manage post-weaning disorders. This study assessed whether rapeseed meal, fermented alone (FRM) or co-fermen...

  • Article
  • Open Access
2 Citations
2,100 Views
32 Pages

Real-Time Fuzzy Record-Matching Similarity Metric and Optimal Q-Gram Filter

  • Ondřej Rozinek,
  • Jaroslav Marek,
  • Jan Panuš and
  • Jan Mareš

6 March 2025

In this paper, we introduce an advanced Fuzzy Record Similarity Metric (FRMS) that improves approximate record matching and models human perception of record similarity. The FRMS utilizes a newly developed similarity space with favorable properties c...

  • Review
  • Open Access
26 Citations
8,087 Views
22 Pages

30 August 2023

Despite water shortages and infrequent rainfall in arid and semi-arid areas, their recent floods show that flooding tends to be more severe and life-threatening. However, flooding is a poorly understood natural hazard in arid and semi-arid areas and...

  • Article
  • Open Access
4 Citations
2,610 Views
13 Pages

18 August 2022

A ferromagnetic/insulator/ferromagnetic Rashba metal junction (FM/I/FRM) with both Rashba spin–orbit coupling (RSOC) and exchange energy splitting was studied theoretically. Two kinds of interactions in FRM generate the three metallic states in...

  • Article
  • Open Access
13 Citations
4,174 Views
31 Pages

An Action Plan Towards Fiducial Reference Measurements for Satellite Altimetry

  • Stelios P. Mertikas,
  • Craig Donlon,
  • Pierrik Vuilleumier,
  • Robert Cullen,
  • Pierre Féménias and
  • Achilles Tripolitsiotis

23 August 2019

Satellite altimeters have been producing, as of 1992, an amazing and historic record of sea level changes. As Europe moves into full operational altimetry, it has become imperative that the quality of these monitoring signals with their uncertainties...

  • Article
  • Open Access
4 Citations
2,402 Views
11 Pages

28 January 2021

Single-phase flux reversal motors (FRMs) with sintered rare-earth permanent magnets on the stator for low-cost high-speed applications have a reliable rotor and a good specific power. However, to reduce eddy current loss, the sintered rare-earth magn...

  • Article
  • Open Access
2 Citations
1,514 Views
23 Pages

19 January 2025

Financial Risk Management (FRM) is crucial for organizations navigating complex and volatile economic conditions, as it aids in identifying and mitigating potential losses. Conventional FRM approaches are inadequate because they do not incorporate va...

  • Article
  • Open Access
11 Citations
2,443 Views
17 Pages

Effects of a Fuel-Resistant Modifier on the High-Temperature Characteristics of Asphalt Binders

  • Wenchang Liu,
  • Hongjun Li,
  • Hongwei Lin,
  • Xiaobo Du,
  • Mutian Sun and
  • Shaohui Liu

15 July 2021

To effectively evaluate the high-temperature characteristics of a fuel-resistant modified asphalt (FRMA), five different types of asphalt were selected, and a fuel-resistant modifier (FRM) was added to the asphalt to prepare five kinds of FRMA, and t...

  • Article
  • Open Access
3,872 Views
17 Pages

In uncertain food safety environments, the suppliers of food raw materials (FRM) are facing crucial food safety issues. Therefore, this article aims to probe the risk-averse attitude of FRM suppliers in the face changing marketing environments, in or...

  • Review
  • Open Access
30 Citations
15,468 Views
29 Pages

9 July 2024

Fiber-reinforced mycelium (FRM) composites offer an innovative and sustainable approach to construction materials for architectural structures. Mycelium, the root structure of fungi, can be combined with various natural fibers (NF) to create a strong...

  • Article
  • Open Access
4 Citations
1,947 Views
27 Pages

Validation and Conformity Testing of Sentinel-3 Green Instantaneous FAPAR and Canopy Chlorophyll Content Products

  • Fernando Camacho,
  • Enrique Martínez-Sánchez,
  • Luke A. Brown,
  • Harry Morris,
  • Rosalinda Morrone,
  • Owen Williams,
  • Jadunandan Dash,
  • Niall Origo,
  • Jorge Sánchez-Zapero and
  • Valentina Boccia

23 July 2024

This article presents validation and conformity testing of the Sentinel-3 Ocean Land Colour Instrument (OLCI) green instantaneous fraction of absorbed photosynthetically active radiation (FAPAR) and OLCI terrestrial chlorophyll index (OTCI) canopy ch...

  • Article
  • Open Access
4 Citations
5,836 Views
24 Pages

22 January 2025

Despite various sustainable urban development frameworks, over the years, inadequate land use patterns and infrastructure have worsened existing problems related to climate disasters such as flooding, heavy precipitation and droughts. Based on a syst...

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