Results 31 to 40 of about 11,447 (223)
Asian Journal of Surgery, 2020 Summary: Objective: A type of bypass tube for a fecal diversion device (FDD) was created to protect colorectal anastomosis. We evaluated the effectiveness of the FDD in an animal study.
Sung Il Kang +3 more
doaj +1 more source
Development of a Unified Taxonomy for HVAC System Faults
Energies, 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
Analysis Simulation of LTE Network Capacity in Pekanbaru
International Journal of Electrical, Energy and Power System Engineering, 2018 In Indonesia, LTE technology is appropriately to be applied by telecommunication operators in improving cellular communication services. In 2018, the number of LTE network users in Pekanbaru continues to increase.
Linna Oktaviana Sari
doaj +1 more source
Deep Transfer Learning-Based Downlink Channel Prediction for FDD Massive MIMO Systems [PDF]
IEEE Transactions on Communications, 2019 Artificial intelligence (AI) based downlink channel state information (CSI) prediction for frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems has attracted growing attention recently. However, existing works focus on
Yuwen Yang +4 more
semanticscholar +1 more source
Approche ontologique du jumeau numérique pour la maintenance énergétique des bâtiments [PDF]
SHS Web of ConferencesLa 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
A Review of Data-Driven Approaches and Techniques for Fault Detection and Diagnosis in HVAC Systems
Sensors, 2022 Heating, ventilation, and air conditioning (HVAC) systems are a popular research topic because buildings’ energy is mostly used for heating and/or cooling.
Iva Matetić +3 more
doaj +1 more source
CSI Quantization for FDD Massive MIMO Communication [PDF]
2021 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 +2 more sources
Propuesta de un estimador de fallas usando fracciones coprimas
Visión 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
Deep Learning-Based Downlink Channel Prediction for FDD Massive MIMO System [PDF]
IEEE Communications Letters, 2019 In a frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) system, the acquisition of downlink channel state information (CSI) at base station (BS) is a very challenging task due to the overwhelming overheads required for ...
Yuwen Yang +3 more
semanticscholar +1 more source
Journal 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