Results 1 to 10 of about 4,394,212 (320)

Active thermal metasurfaces for remote heating/cooling by mimicking negative thermal conductivity [PDF]

open access: yesAdvanced Materials 2023, 2022
Remote temperature control can be obtained by a long-focus thermal lens that can focus heat fluxes into a spot far away from the back surface of the lens and create a virtual thermal source/sink in the background material, around which the temperature field distribution can be remotely controlled by changing the parameters of the thermal lens. However,
arxiv   +1 more source

VALIDATION OF SEMI-EMPIRICAL TEMPERATURE MODEL OF PEMFC USING ATOM SEARCH OPTIMIZATION ALGORITHM

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2022
Proton Exchange Membrane Fuel Cell (PEMFC) has unique thermal characteristics. The change in PEMFC temperature directly effects the PEMFC performance. The voltage and temperature of PEMFC at different loading/ambient conditions is not easy to predict. In
Amine Abbou, Abdennebi El Hassnaouib
doaj   +1 more source

Medina’s Habitation as a Sustainable Investment Factors: Thermal Experience [PDF]

open access: yesPresent Environment and Sustainable Development, 2021
The study examined significant summer heat effects on a traditional habitation cluster within a compact fabric of the Medina of Constantine, based on building materials and spatial functional architecture.
Ali Hadjala, Said Mazouz
doaj   +1 more source

A Review of the Recent Development of Photovoltaic/Thermal (PV/T) Systems and Their Applications

open access: yesFuture Cities and Environment, 2020
Hybrid photovoltaic/thermal systems have become an important energy technology due to their capacity of producing electrical and thermal energy simultaneously, their ease of integration into buildings and good overall performance. Conventional PV systems
Mayra Garcia Noxpanco   +2 more
doaj   +1 more source

Thermal and non-thermal Sunyaev-Zel'dovich effect in the cavities of the galaxy cluster MS 0735.6+7421: the role of the thermal density in the cavity [PDF]

open access: yesMNRAS, 503, 4183 (2021), 2021
The galaxy cluster MS 0735.6+7421 hosts two large X-ray cavities, filled with radio emission, where a decrease of the Sunyaev-Zel'dovich (SZ) effect has been detected, without establishing if its origin is thermal (from a gas with very high temperature) or non-thermal. In this paper we study how thermal and non-thermal contributions to the SZ effect in
arxiv   +1 more source

Hypocrystalline ceramic aerogels for thermal insulation at extreme conditions

open access: yesNature, 2022
Thermal insulation under extreme conditions requires materials that can withstand complex thermomechanical stress and retain excellent thermal insulation properties at temperatures exceeding 1,000 degrees Celsius1–3.
Jingran Guo   +14 more
semanticscholar   +1 more source

Thermal Radiation Heat Transfer

open access: yes, 2020
Introduction to Radiative Transfer Importance of Thermal Radiation in Engineering Thermal Energy Transfer Thermal Radiative Transfer Radiative Energy Exchange and Radiative Intensity Characteristics of Emission Radiative Energy Loss and Gain Along a Line-
R. Siegel, J. Howell, M. Pinar Mengüç
semanticscholar   +1 more source

Sensor Pods: Multi-Resolution Surveys from a Light Aircraft

open access: yesInventions, 2017
Airborne remote sensing, whether performed from conventional aerial survey platforms such as light aircraft or the more recent Remotely Piloted Airborne Systems (RPAS) has the ability to compliment mapping generated using earth-orbiting satellites ...
Conor Cahalane   +5 more
doaj   +1 more source

The Assessment of Thermal Conditions Using Humidex in Different Weather Conditions: A Case in Different Climates of Iran [PDF]

open access: yesJournal of Health Sciences and Surveillance System, 2021
Background: This study aimed to illustrate the applicability of the Humidex index for assessment of outdoor thermal environments in a wide range of weather conditions in different climates in Iran. Study Design: This is a cross-sectional study.
Farideh Golbabaei   +2 more
doaj   +1 more source

Unobtrusive Respiratory Flow Monitoring Using a Thermopile Array: A Feasibility Study

open access: yesApplied Sciences, 2019
Low-resolution thermal cameras have already been used in the detection of respiratory flow. However, microbolometer technology has a high production cost compared to thermopile arrays.
Ilde Lorato   +4 more
doaj   +1 more source

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