Results 21 to 30 of about 8,730 (217)

Development of a Unified Taxonomy for HVAC System Faults

open access: yesEnergies, 2021
Detecting and diagnosing HVAC faults is critical for maintaining building operation performance, reducing energy waste, and ensuring indoor comfort. An increasing deployment of commercial fault detection and diagnostics (FDD) software tools in commercial
Yimin Chen   +3 more
doaj   +1 more source

CSI Quantization for FDD Massive MIMO Communication [PDF]

open access: yes2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021
We consider high-dimensional multiuser MIMO transmissions in Frequency Division Duplexing systems. For precoding, the frequency selective channel has to be measured, quantized and fed back to the base station by the users. In 5G New Radio (NR), a modular quantization approach has been applied for this, where first a low-dimensional subspace is ...
Roope Vehkalahti   +4 more
openaire   +3 more sources

Approche ontologique du jumeau numérique pour la maintenance énergétique des bâtiments [PDF]

open access: yesSHS Web of Conferences
La transformation numérique dans le secteur de la construction, axée sur le BIM, suscite un intérêt croissant pour la maintenance des bâtiments. Notre recherche vise à développer et valider une méthode de maintenance prévisionnelle basée sur un jumeau ...
Calixte Maxence   +2 more
doaj   +1 more source

Propuesta de un estimador de fallas usando fracciones coprimas

open access: yesVisión Electrónica, 2015
Los sistemas de detección, diagnóstico y aislamiento de fallas (FDDI), generan señales (residuos) que contienen detalles de la falla. La estimación de estado es un procedimiento común para la generación de residuos cuando se usa redundancia analítica. En
Franklin Edisson Pineda Torres   +1 more
doaj   +1 more source

Achieving energy savings through artificial-intelligence-assisted fault detection and diagnosis: Case study on refrigeration systems

open access: yesCase Studies in Thermal Engineering, 2022
This study developed an innovative auto-scale transfer learning (ASTL) technology for artificial intelligence (AI) assisted fault detection and diagnosis (FDD).
Dasheng Lee   +2 more
doaj   +1 more source

Розробка, керована функціями (FDD) [PDF]

open access: yes, 2023
Васюта В.В. Розробка, керована функціями (FDD) / В.В. Васюта, С.Г. Барсуков // Eurasian scientific discussions : Proceedings of the 13th International scientific and practical conference. – Barcelona : Barca Academy Publ., 2023. – P. 128-132.
Барсуков, С.Г.   +1 more
core  

An Attention-Based TabNet Framework for Fault Detection and Diagnosis in HVAC Systems with Limited Labeled Data [PDF]

open access: yesE3S Web of Conferences
Heating, Ventilation, and Air Conditioning (HVAC) systems play a critical role in ensuring energy efficiency, occupant comfort, and sustainability in modern buildings.
Samuel Immanuel Iniobong   +5 more
doaj   +1 more source

Associations between Autoimmunity and Depression: Serum IL-6 and IL-17 Have Directly Impact on the HAMD Scores in Patients with First-Episode Depressive Disorder

open access: yesJournal of Immunology Research, 2022
Objective. The study is aimed at evaluating the immune-activation state before and after treatment in patients with first-episode depressive disorder (FDD) with evaluating the ILs and CRP levels and further clarifying the association between autoimmunity
Lijuan Mao   +3 more
doaj   +1 more source

FDD

open access: yes, 2022
SSSDASDD
openaire   +1 more source

Working document: Summary of Existing FDD Frameworks for Building Systems [PDF]

open access: yes, 2023
This document aims to be a working document regarding FDD methodology classifications, definitions, and concepts for systems within buildings. With the immense body of literature on the topic of FDD, the authors have aimed to make an open-source document
Melgaard, Simon Pommerencke; id_orcid   +2 more
core  

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