Results 31 to 40 of about 251,504 (306)

Rational Materials and Structure Design for Improving the Performance and Durability of High Temperature Proton Exchange Membranes (HT‐PEMs)

Advanced Science, 2023
Hydrogen energy as the next‐generation clean energy carrier has attracted the attention of both academic and industrial fields. A key limit in the current stage is the operation temperature of hydrogen fuel cells, which lies in the slow development of ...
Jingnan Song, Wutong Zhao, Libo Zhou, Hongjie Meng, Haibo Wang, Panpan Guan, Min Li, Yecheng Zou, Wei Feng, Ming Zhang, Lei Zhu, Ping He, Feng Liu, Yongming Zhang   +13 more
doaj   +1 more source

Energy, cost, and CO 2 emission comparison between radiant wall panel systems and radiator systems

, 2012
The main goal of this paper is to evaluate the possibility of application or replacement of radiators with low-temperature radiant panels. This paper shows the comparison results of operations of 4 space heating systems: the low-temperature radiant panel
Bojić, Milorad, Boyer, Harry, Cvetković, Dragan, Malešević, Jovan, Miletić, Marko   +4 more
core   +1 more source

N, F-Codoped Microporous Carbon Nanofibers as Efficient Metal-Free Electrocatalysts for ORR

Nano-Micro Letters, 2019
Currently, the oxygen reduction reaction (ORR) mainly depends on precious metal platinum (Pt) catalysts. However, Pt-based catalysts have several shortcomings, such as high cost, scarcity, and poor long-term stability. Therefore, development of efficient
Tianle Gong, Ruoyu Qi, Xundao Liu, Hong Li, Yongming Zhang   +4 more
doaj   +1 more source

Cool Roof Impact on Building Energy Need: The Role of Thermal Insulation with Varying Climate Conditions [PDF]

, 2019
Cool roof effectiveness in improving building thermal-energy performance is affected by different variables. In particular, roof insulation level and climate conditions are key parameters influencing cool roofs benefits and whole building energy ...
Cabeza, Luisa F., Cotana, Franco, Gracia Cuesta, Alvaro de, Piselli, Cristina, Pisello, Anna Laura, Saffari Tabalvandani, Mohammad   +5 more
core   +2 more sources

Study on Thermal Insulation Cement and Its Thermal Insulation Charateristics for Geothermal Wells

Scientific Reports, 2022
Abstract Geothermal energy is a clean, efficient and plentiful unconventional energy, and reducing the heat loss in wellbore is the key for efficient development of geothermal resource. It is a reliable solution to establish a long-term stable wellbore with good thermal insulation effect through cementing, which requires hardened cement with ...
Wei Zhou, Chengwen Wang, Renzhou Meng, Zehua Chen, Haoxin Lu, Jialun Chi   +5 more
openaire   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

New thermal insulation fiberboards from cake generated during biorefinery of sunflower whole plant in a twin-screw extruder [PDF]

, 2014
The objective of this study was to manufacture new thermal insulation fiberboards by thermo-pressing. The starting material was a slightly deoiled cake (17.6% oil content), generated during the biorefinery of sunflower (Helianthus annuus L.) whole plant ...
Alavez-Ramirez, Ardente, Benfratello, Chikhi, Evon, Evon, Evon, Evon, Evon, Evon, Galvin, Geneau, Hagenmaier, Isobe, Khedari, Khedari, Korjenic, Kymäläinen, Lertsutthiwong, Luc Rigal, Maréchal, Nicolajsen, Orliac, Orliac, Paiva, Panyakaew, Philippe Evon, Pierre-Yves Pontalier, Pinto, Rosenthal, Rouilly, Rouilly, Rouilly, Rouilly, Saiah, Sampathrajan, Southwell, Van Soest, Van Soest, Vandenbossche, Virginie Vandenbossche, Zhang, Zhou   +42 more
core   +4 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

The multi-factor influence of frost resistance and prevention effect of tunnel thermal insulation layer in cold areas

Alexandria Engineering Journal, 2023
To figure out the thermal insulation effect of tunnel thermal insulation layer under the action of different factors in cold areas, the heat transfer analysis module in ABAQUS software was used for the Jiangluling Tunnel to numerically simulate the ...
Yunfeng Ma, Linsheng Xu, Ximei Shi
doaj   +1 more source

Battery cell thermal-conductive coating increases efficiency [PDF]

, 1973
Thin coating of high-temperature epoxy resin provides necessary electrical insulation, as well as good thermal conductivity between battery cells. Insulation increases efficiency of nickel-cadmium battery, as it would any multicell battery assembly in ...
Doyle, H. M.
core   +1 more source