Results 1 to 10 of about 1,724,790 (267)

Long-Term Assessment of a Set of CO₂ Concentration Sensors in an In-Use Office Building

Sensors, 2022
The measurement of the CO2 concentration has a wide range of applications. Traditionally, it has been used to assess air quality, with other applications linked to the experimental assessment of occupancy patterns and air renewal rates.
Carmen Serrano Lapuente, Héctor Herrada, María José Jiménez, María Nuria Sánchez   +3 more
doaj   +1 more source

System for Indoor Comfort and Health Monitoring Tested in Office Building Environment

Applied Sciences, 2023
The use of smart technologies and the Internet of Things (IoT) is becoming more and more popular in order to enhance the overall building performance by monitoring parameters related to occupants’ comfort and health in the built environment.
Lucia-Andreea El-Leathey, Paula Anghelita, Alexandru-Ionel Constantin, Gabriela Circiumaru, Rareș-Andrei Chihaia   +4 more
doaj   +1 more source

Multispectral imaging for pathogen identification using a filter wheel and smartphone: A frugal innovation approach [PDF]

EPJ Web of Conferences, 2023
To create an affordable clinical test for use in more decentralized settings, we are developing a multispectral imaging system based on a filter wheel and a smartphone.
Leroux Denis, Alonso Florian, Coent Tanguy, Garros Maeva, Montvernay Régis, Le Bihan Yann, Fulchiron Corine   +6 more
doaj   +1 more source

Numerical Simulation of Distribution Law of Cathodic and Anodic Areas of Pipeline under HVDC Interference [PDF]

Cailiao Baohu, 2022
In order to study the influence rule of HVDC grounding electrode interference on the cathodic area and anodic area of the pipeline systematically,the Zheneng Jinliwen pipeline was taken as the research object to establish a HVDC interference model using ...
WANG Jun, XU Haohao, LI Xiang, ZHANG Xiang, LI Hanqiu, WANG Ximing
doaj   +1 more source

Improving the Energy Conversion Efficiency for Hydrokinetic Turbines Using MPPT Controller

Applied Sciences, 2020
The research presented in this paper involves the design of a power control system for a hydrokinetic turbine previously tested in real operating conditions.
Rareș-Andrei Chihaia, Ionuț Vasile, Gabriela Cîrciumaru, Sergiu Nicolaie, Emil Tudor, Constantin Dumitru   +5 more
doaj   +1 more source

Parametric Study of Unsteady Flow and Heat Transfer of Compressible Helium–Xenon Binary Gas through a Porous Channel Subjected to a Magnetic Field

Fluids, 2021
A numerical analysis of unsteady fluid and heat transport of compressible Helium–Xenon binary gas through a rectangular porous channel subjected to a transverse magnetic field is herein presented. The binary gas mixture consists of Helium (He) and Xenon (
Pornthep Pattanavanitkul, Watit Pakdee
doaj   +1 more source

Data-Based RC Dynamic Modelling to Assessing the In-Situ Thermal Performance of Buildings. Analysis of Several Key Aspects in a Simplified Reference Case toward the Application at On-Board Monitoring Level

Energies, 2020
This paper reports the application of RC dynamic models for assessing thermal performance of buildings from in-situ tests (obtaining the U value for the walls, and the UA value and gA value for the whole buildings).
Yessenia Olazo-Gómez, Héctor Herrada, Sergio Castaño, Jesús Arce, Jesús P. Xamán, María José Jiménez   +5 more
doaj   +1 more source

Non-Intrusive Measurements to Incorporate the Air Renovations in Dynamic Models Assessing the In-Situ Thermal Performance of Buildings

Energies, 2020
This paper reports the analysis of the feasibility to characterise the air leakage and the mechanical ventilation avoiding the intrusiveness of the traditional measurement techniques of the corresponding indicators in buildings.
María José Jiménez, José Alberto Díaz, Antonio Javier Alonso, Sergio Castaño, Manuel Pérez   +4 more
doaj   +1 more source

Optimization of the Urea Injection Angle and Direction: Maximizing the Uniformity Index of a Selective Catalytic Reduction System

Energies, 2020
The uniformity of ammonia is very crucial for reducing the NOX emissions in a selective catalytic reduction system since the uniformity highly affects the chemical reaction between the ammonia and NOX emission. However, increasing ammonia uniformity in a
Seokhoon Jeong, Hoonmyung Kim, Hyunjun Kim, Ohyun Kwon, Eunyong Park, Jeongho Kang   +5 more
doaj   +1 more source

A Molecular Understanding of the Flame Retardant Mechanism of Zinc Stannate/Polypropylene Composites via ReaxFF Simulations

Inorganics, 2023
As an important new flame retardant, zinc stannate (ZS) shows wide application prospects due to its many advantages. However, the flame retardant mechanism of composites made with polymer combined with ZS is still unclear.
Jun Li, Meilin Zhu, Chang Geng, Yingjie Yuan, Zewei Fu, Shu Yan, Rou Feng, Yingwu Wang, Ying Zhou, Liangliang Meng, Hui Zhang, Hongcun Bai   +11 more
doaj   +1 more source