Voici notre dernière sélection de publications et brevets mondiaux en anglais sur la thermodynamique, parmi de nombreuses revues scientifiques en ligne, classées et axées sur la thermodynamique, le transfert de chaleur, l'entropie, l'enthalpie, la chaleur spécifique, Gibbs, l'adiabatique, le carnot et l'énergie interne.
Insights into the Adsorption of Carbon Dioxide in Zeolites ITQ-29 and 5A Based on Kinetic Measurements and Molecular Simulations
Published on 2025-07-11 by Magdy Abdelghany Elsayed, Shixue Zhou, Xiaohui Zhao, Gumawa Windu Manggada, Zhongyuan Chen, Fang Wang, Zhijuan Tang @MDPI
Abstract: Understanding the adsorption mechanism is essential for developing efficient technologies to capture carbon dioxide from industrial flue gases. In this work, laboratory measurements, density functional theory calculations, and molecular dynamics simulations were employed to study CO2 adsorption and diffusion behavior in LTA-type zeolites. The CO2 adsorption isotherms measured in zeolite 5A are best described by the Toth model. Thermodynamic analysis indicates that the adsorption process is spont[...]
Our summary: Study of CO2 adsorption and diffusion in LTA-type zeolites using laboratory measurements, DFT calculations, and molecular dynamics simulations. Thermodynamic analysis shows spontaneous and exothermic adsorption with heterogeneous interactions at Ca2+ and Na+ sites. Comparison between zeolites 5A and ITQ-29 reveals differences in adsorption energy and diffusion kinetics.
Adsorption, Zeolites, Kinetic Measurements, Molecular Simulations
Thermal cvd apparatus and method for producing graphene
Patent published on the 2025-07-03 in WO under Ref WO2025142961 by AGC INC [JP] (Yoneta Kiyoto [jp], Ono Masashi [jp], Watanabe Hiroshi [jp], Yasui Yoji [jp], Yonemichi Tomohiro [jp])
Abstract: Provided is a thermal CVD apparatus for graphene production capable of suppressing heat unevenness inside a reaction vessel. The thermal CVD device for graphene production comprises: a reaction vessel in which a substrate for graphene production is housed; a gas supply section for supplying a raw material gas containing hydrocarbon; a gas discharge section for discharging gas from the inside of the reaction vessel; a heater for heating the inside of the reaction vessel; and a shielding member [...]
Our summary: Thermal CVD apparatus for producing graphene with heat suppression inside reaction vessel. Includes gas supply section, gas discharge section, heater, and shielding member. Shielding plates with defined aperture ratios for efficient heat transfer control.
thermal CVD, graphene production, apparatus, method
Patent
Cognitive Cardiac Assessment Using Low-Cost Electrocardiogram Acquisition System
Published on 2025-06-18 by Milan Milivojevi?, Ana Gavrovska @MDPI
Abstract: Information and communication technologies are revolutionizing cardiac monitoring. Particularly, different Internet of Things (IoT) devices are gaining popularity, although basic cognitive tools that rely on electrocardiograms (ECGs) are still uncommon. Here, an ECG acquisition system for cognitive load analysis has been developed based on an Arduino-based, low-cost device for signal processing, recording, analysis, and classification. The system used network components such a cloud server for s[...]
Our summary: Revolutionizing cardiac monitoring with a low-cost ECG system for cognitive load analysis using IoT devices. High accuracy cognitive load assessment based on ECG signals with a new classification model. Utilizes network components like a cloud server for signal processing and storage.
Cognitive Cardiac Assessment, Low-Cost Electrocardiogram Acquisition System, Internet of Things (IoT), Signal Processing
Publication
Experimental and Simulation Research Progress on the Solidification Structure Evolution of High Chromium Cast Iron
Published on 2025-06-13 by Longxiao Huang, Yang Liu, Hanguang Fu @MDPI
Abstract: High-chromium cast irons (HCCIs) have emerged as preferred materials for critical wear-resistant components operating under extreme conditions, owing to their excellent wear resistance, low cost, and good castability. They are widely used in metallurgy, energy, and mechanical engineering industries. The evolution of solidification microstructure directly governs the final properties of HCCIs, making the in-depth investigation of their solidification behavior of great significance. This paper pro[...]
Our summary: Comprehensive review of experimental and simulation research progress on the solidification structure evolution of high chromium cast iron, analyzing the effects of alloy composition, cooling rate, and inoculation treatments, and discussing the application of simulation techniques.
High Chromium Cast Iron, Solidification Structure Evolution, Experimental Research, Simulation Progress
Publication
A method and system for improving pore-scale network modeling of two-phase flow in porous media
Patent published on the 2025-03-06 in WO under Ref WO2025049615 by UNIV OF WYOMING [US] (Gong Yanbin [us], Mccaskill Bradley [us], Sedghi Mohammad [us], Piri Mohammad [us])
Abstract: A method and system for predicting the physical and chemical media properties of a porous media by one or more processing units. The method includes performing a pore-network modeling (PNM) and applying a Mayer-Stowe-Princen (MS-P) semi-analytical theory of drainage to the PNM. The MS-P semi-analytical theory of drainage includes constructing pore boundaries from an image of a pore cross-section. Geometrically and thermodynamically-favorable arc meniscus (AM) are identified from a plurality of A[...]
Our summary: Improving pore-scale network modeling of two-phase flow in porous media by predicting physical and chemical media properties through pore-network modeling and applying a semi-analytical theory of drainage. Identifying geometrically and thermodynamically-favorable arc meniscus and determining an optimal fluid configuration.
pore-scale network modeling, two-phase flow, porous media, pore-network modeling
Patent
Active thermal switch
Patent published on the 2025-03-06 in WO under Ref WO2025049988 by FLECHT TOBIAS [LU] (Gemer Andrew Josef [us], Cyrus Justin [us], Cyrus Julian [us], Wilson Peter [us], Flecht Tobias [lu])
Abstract: An active thermal switch assembly according to aspects described herein may include a hot plate, a cold plate, and an actuator. The actuator may cause the hot plate and the cold plate to come into mechanical contact, thereby achieving a closed state for the active thermal switch and facilitating conductive heat transfer between the two plates. Convective/radiative heat transfer may have little effect as compared to conductive heat transfer (e.g., as may be the case in environments having reduced[...]
Our summary: Active thermal switch assembly includes hot plate, cold plate, and actuator for conductive heat transfer control. Actuator brings plates into contact for closed state, reducing heat transfer, while introducing gap achieves open state. Separation distance modulation can also control thermal radiation.
thermal switch, actuator, conductive heat transfer, separation distance
Patent
Solar water heater
Patent published on the 2025-03-06 in WO under Ref WO2025048675 by SKALDIN NIKOLAI NIKOLAEVICH [RU] (Skaldin Nikolai Nikolaevich [ru])
Abstract: The invention relates to the field of water heating devices that use solar radiation as an energy source. The present water heating device comprises a heat storage tank and a heat exchange tube. The heat storage tank is filled with a liquid heat transfer fluid and has a dome-like element, the outer surface of which is exposed to solar radiation. The heat exchange tube is disposed inside the heat storage tank such that the outer surface of the heat exchange tube is in contact with the liquid heat[...]
Our summary: Invention in water heating devices using solar radiation. Device includes tank with dome-like element exposed to solar radiation, heat exchange tube, and valve for water flow. Simplified design and greater operational independence.
solar water heater, heat storage tank, heat exchange tube, heat transfer fluid
Patent
High-entropy chalcogenide glass electrocatalyst for oxygen generation and method for manufacturing same
Patent published on the 2025-03-06 in WO under Ref WO2025048619 by DONGGUK UNIV INDUSTRY ACADEMIC COOPERATION FOUNDATION [KR] (Sohn Jungin [kr], Jo Seunghwan [kr])
Abstract: The present invention relates to: a high-entropy chalcogenide glass electrocatalyst for oxygen generation in a proton exchange membrane water electrolyzer; and a method for manufacturing same, wherein high-entropy chalcogenide is formed through a combination of at least five types of transition metal precursor and at least one type of chalcogen precursor and is thus imparted. Accordingly, it is possible to manufacture an electrocatalyst having improved OER performance and stability compared to c[...]
Our summary: High-entropy chalcogenide glass electrocatalyst for oxygen generation in a proton exchange membrane water electrolyzer, method for manufacturing electrocatalyst with improved OER performance and stability.
high-entropy chalcogenide, glass, electrocatalyst, oxygen generation
Patent
