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Fant 88 publikasjoner. Viser side 1 av 4:

Publikasjon  
År  
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Accurate Measurements of Methane, Carbon Dioxide for Arctic and Wetland Conditions using NDIR Technology and AI-based Calibration

Gia, Huy Duong; Taherkordi, Amirhosein; Ha, Hoai Phuong; Wastine, Benoit; Gaynullin, Bakhram; Dallo, Federico; Cao, Tuan-Vu

2025

Semantic Modeling of Waste Dataflow for Automating Circular Economy Systems

Motevallian, Mahsa; Alam, A M Esfar E; Taherkordi, Amirhosein; Abbasi, Golnoush

2024

The influence of residential wood combustion on the concentration of PM2.5 in four Nordic cities

Kukkonen, J.; Lopez-Aparicio, Susana; Segersson, D.; Geels, C; Kangas, Leena; Kauhaniemi, M; Maragkidou, Androniki; Jensen, A.; Assmuth, Timo; Karppinen, A; Sofiev, M; Hellén, Heidi; Riikonen, K.; Nikmo, Juha; Kousa, A.; Niemi, J. V.; Karvosenoja, N.; Sundvor, Ingrid; Santos, Gabriela Sousa; Im, U; Christensen, J. H.; Nielsen, O. K.; Plejdrup, M. S.; Nøjgaard, J.K.; Omstedt, G; Andersson, C.; Forsberg, B.; Brandt, J.

2020

Toward a unified terminology of processing levels for low-cost air-quality sensors

Schneider, Philipp; Bartonova, Alena; Castell, Nuria; Dauge, Franck Rene; Gerboles, Michel; Hagler, Gayle S. W.; Huglin, Christoph; Jones, Roderic L.; Khan, Sean; Lewis, Alastair C.; Mijling, Bas; Müller, Michael; Penza, Michele; Spinelle, Laurent; Stacey, Brian; Vogt, Matthias; Wesseling, Joost; Williams, Ronald W.

2020

Calibration strategies for low-cost compact field sensors in Citizen Science Air Quality measurements: Insights from SOCIO-BEE project

Kotzagianni, Maria; Hassani, Amirhossein; Morresi, Nicole; Udina, Sergi; Kyfonidis, Charalampos; Roussos, Anargyros; Casaccia, Sara; Revel, Gian Marco; Noriega-Ortega, Beatriz

2023

Effect of filter type in ventilation systems on NO2 concentrations in classrooms

Yang, Aileen; Nikolaisen, Kristian Fredrik; Holøs, Sverre Bjørn; Thunshelle, Kari; Dauge, Franck Rene; Mysen, Mads

This study was conducted to assess how different filter types in the ventilation system affect the indoor NO2 concentrations. Measurements were carried out in two classrooms and air intakes in a primary school located in Oslo, Norway. A regular F7 particle filter and an F7 combination filter with activated charcoal lin-ing were compared. NO2 concentrations were measured for five weeks during winter 2017 in a cross-over study design to compare: 1) NO2-levels in classrooms with regular filter (RF) versus combination filter (CF); 2) indoor/outdoor ratio with regular filter versus combination filter. One-hour average concentrations are reported during operating time of the ventilation system (6:00-23:00) and during hours with high (> 40 μg/m3) outdoor NO2 concentrations. The measured average NO2 concentrations in both classrooms with an RF were significantly higher than with a CF. The median CF/RF ratios for the two class-rooms were 0.50 and 0.81 during hours with high NO2 concentrations, and 0.48 and 1.00 during the period the ventilation system was operational. During hours with high NO2 concentrations, themedian indoor/outdoor ratios for the two class-rooms with an RF were above 1.00, while the corresponding ratios with a CF were 0.78 and 0.75. Our results demonstrate that a combination filter is more efficient than a regular filter in reducing NO2 concentrations in classrooms during hours with high out-door concentrations.

2019

Coastal lagoons: Environmental variability, ecosystem complexity, and goods and services uniformity

Perez-Ruzafa, Angel; Perez-Ruzafa, Isabel M.; Newton, Alice; Marcos, Concepción

2019

Short-lived Climate Forcers

Szopa, Sophie; Naik, Vaishali; Adhikary, Bhupesh; Artaxo, Paulo; Berntsen, Terje Koren; Collins, William D; Fuzzi, Sandro; Gallardo, Laura; Kiendler-Scharr, Astrid; Klimont, Zbigniew; Liao, Hong; Unger, Nadine; Zanis, Prodromos; Aas, Wenche; al, ... et

2021

Global Carbon and Other Biogeochemical Cycles and Feedbacks

Canadell, Josep G.; Monteiro, Pedro M.S.; Costa, Marcos H.; Cox, Peter M.; Eliseev, Alexey; Henson, Stephanie; Ishii, Masao; Jaccard, Samuel; Koven, Charles; Lohila, Annalea; Patra, Prabir K.; Piao, Shilong; Rogelj, Joeri; Syampungani, Stephen; Zaehle, Sönke; Zickfeld, Kirsten; Thompson, Rona Louise; al, ... et

2021

Accurate Lightweight Calibration Methods for Mobile Low-Cost Particulate Matter Sensors

Jørstad, Per Martin; Wojcikowski, Marek; Cao, Tuan-Vu; Lepioufle, Jean-Marie; Wojtkiewicz, Krystian; Ha, Hoai Phuong

<p>Monitoring air pollution is a critical step towards improving public health, particularly when it comes to identifying the primary air pollutants that can have an impact on human health. Among these pollutants, particulate matter (PM) with a diameter of up to 2.5 μm (or PM2.5) is of particular concern, making it important to continuously and accurately monitor pollution related to PM. The emergence of mobile low-cost PM sensors has made it possible to monitor PM levels continuously in a greater number of locations. However, the accuracy of mobile low-cost PM sensors is often questionable as it depends on geographical factors such as local atmospheric conditions. <p>This paper presents new calibration methods for mobile low-cost PM sensors that can correct inaccurate measurements from the sensors in real-time. Our new methods leverage Neural Architecture Search (NAS) to improve the accuracy and efficiency of calibration models for mobile low-cost PM sensors. The experimental evaluation shows that the new methods reduce accuracy error by more than 26% compared with the state-of-the-art methods. Moreover, the new methods are lightweight, taking less than 2.5 ms to correct each PM measurement on Intel Neural Compute Stick 2, an AI-accelerator for edge devices deployed in air pollution monitoring platforms.

2023

Evaluation of the indoor environment and perceived IEQ : a case study in Norwegian primary schools

Chaulagain, Aayam; Mathisen, Hans Martin; Alam, Azimil Gani; Bartonova, Alena; Fredriksen, Mirjam; Høiskar, Britt Ann Kåstad; Gustavsen, Kai; Canet, Alfred Mansanet; Fredriksen, Tore; Cao, Guangyu

2024

Spatial mapping of emissions

Kuenen, Jeroen; Aardenne, John van; Goodwin, Justin; Mareckova, Katarina; Adams, Martin; Ruyssenaars, Paul; Wankmüller, Robert; Pye, Stephen; King, Katie; Veldeman, Nele; Maas, Wim van der; Lopez-Aparicio, Susana; Plejdrup, Marlene S.; d'elia, Ilaria; Feigenspan, Stefan; Vilardell, Marc Guevara

2023

Generalized Convergence Analysis of Tsetlin Automaton Based Algorithms: A Probabilistic Approach to Concept Learning

Belaid, Mohamed-Bachir; Sharma, Jivitesh; Lei, Jiao; Granmo, Ole-Christoffer; Andersen, Per-Arne; Yazidi, Anis

2025

In vitro approaches for assessing the genotoxicity of nanomaterials

Dusinska, Maria; Mariussen, Espen; Rundén-Pran, Elise; Hudecova, Alexandra Misci; Elje, Elisabeth; Kazimirova, Alena; Yamani, Naouale El; Dommershausen, Nils; Tharmann, Julian; Fieblinger, Dagmar; Herzberg, Frank; Luch, Andreas; Haase, Andrea

2019

FAIRMODE WG5: A novel city pilot approach for improving air quality management practices

Pisoni, E.; Guerreiro, Cristina; Tarrasón, Leonor; Guevara, M.; Lopez-Aparicio, Susana; Thunis, P.

2018

Assessment of discrepancies between bottom-up and regional emission inventories

Lopez-Aparicio, Susana; Tarrasón, Leonor; Cuvelier, K.; Grythe, Henrik; Guevara, M.; Thunis, P.

2018

A Dynamic Modelling Tool to Ensure the Safety of Drinking Water Sources Near Amine-Based CO2 Capture Plants

Gundersen, Cathrine Brecke; Wisthaler, Armin; Cassiani, Massimo; Norling, Magnus Dahler; Wennberg, Aina Charlotte; Clayer, Francois; Dörsch, Peter; Zeeshan, Muhammad; Tednes, Marius; Leviana, Nadya

2024

Deep Learning-Enhanced Gap Filling in Drosophila Melanogaster Genomic Data

Sharma, Jivitesh; Jetschny, Stefan; Kapun, Martin; Belaid, Mohamed-Bachir

2024

Comparison of a new emission inventory for the Nordic countries and global inventories

Paunu, V.-V.; Karvosenoja, N.; Segersson, D.; Lopez-Aparicio, Susana; Nielsen, O. K.; Plejdrup, M. S.; Vo, Dam Thanh; Thorsteinsson, T.; Johansson, L.; Kupiainen, K.; Gon, H. Denier van der; Brandt, J.; Geels, C.

2018

Modeling the Impact of Pedestrianization on Urban Air Quality

O'Regan, Anna C.; Grythe, Henrik; Santos, Gabriela Sousa; Nyhan, Marguerite M.

2025

Agency and responsibility in smart air pollution monitoring

Ekman, Karin; Ponti, Marisa; Grau, Marc Peñalver; Castell, Nuria; Steffansen, Rasmus Nedergård; Lissandrello, Enza

2023

Automatic Correction of Non-Anechoic Antenna Measurements using Low-Pass Filters

Bekasiewicz, Adrian; Waladi, Vorya; Wojcikowski, Marek; Cao, Tuan-Vu

2023

Reconciliation of methane emissions in European national inventory reports with atmospheric measurements

Houweling, Sander; Berchet, Antoine; Brunner, Dominik; Cheliotis, Ioannis; Fenjuan, Wang; Ioannidis, Elefterios; Koch, Frank-Thomas; Lin, Hong; Maksyutov, Shamil; Meesters, Antoon; Monteil, Guillaume; Pison, Isabelle; Ren, Ge; Scholze, Marko; Sollum, Espen; Steiner, Michael; Thompson, Rona Louise; Tsuruta, Aki

2024

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