Results 11 to 20 of about 73,080 (268)

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

open access: yesAdvanced 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   +13 more
doaj   +1 more source

Luminescent halogen clusters

open access: yesCell Reports Physical Science, 2022
Summary: Halogen···halogen (X···X) short contacts, especially halogen bonds (XBs), have been widely used in multifarious fields because of their bridging function among luminophores, as well as their well-known heavy atom effect.
Zihao Zhao   +7 more
doaj   +1 more source

Dielectric Manipulated Charge Dynamics in Contact Electrification

open access: yesResearch, 2022
Surface charge density has been demonstrated to be significantly impacted by the dielectric properties of tribomaterials. However, the ambiguous physical mechanism of dielectric manipulated charge behavior still restricts the construction of high ...
Kunming Shi   +6 more
doaj   +1 more source

Design Rules of the Mixing Phase and Impacts on Device Performance in High-Efficiency Organic Photovoltaics

open access: yesResearch, 2022
In nonfullerene acceptor- (NFA-) based solar cells, the exciton splitting takes place at both domain interface and donor/acceptor mixture, which brings in the state of mixing phase into focus.
Jingnan Song   +17 more
doaj   +1 more source

Effects of Age on Thermal Sensitivity in the Rat [PDF]

open access: yesThe Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 2010
Age-dependent changes in thermal sensitivity were evaluated with reflex- and operant-based assessment strategies in animals ranging in age from 8 to 32 months. The impact of inflammatory injury on thermal sensitivity was also determined in animals of different ages.
R P, Yezierski   +4 more
openaire   +2 more sources

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

open access: yesNano-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   +4 more
doaj   +1 more source

Seeking advanced thermal management for stretchable electronics

open access: yesnpj Flexible Electronics, 2021
With the trend of integration, miniaturization, and increasing power density of stretchable electronic devices, real-time thermal dissipation is becoming crucial.
Bin Sun, Xingyi Huang
doaj   +1 more source

Influence Mechanism of Rubber Thermal Oxygen Aging on Dynamic Stiffness and Loss Factor of Rubber Isolation Pad

open access: yesInternational Journal of Polymer Science, 2022
The influence mechanism of thermal oxygen aging on the dynamic characteristic of the rubber isolation pad (RIP) is usually ignored in studies. However, the ambient temperature of the RIP could reach up to 70°C in general, and even 108°C under some ...
Junjie Chen   +4 more
doaj   +1 more source

Thermal aging effect on fracture toughness of GTAW/SMAW of 316L stainless steel: experiments and applicability of existing CASS models

open access: yesNuclear Engineering and Technology, 2021
This paper presents thermal aging effect on fracture toughness properties of GTAW (gas tungsten arc welding) and SMAW (shielded metal arc welding) of 316L stainless steels, and investigates the applicability of the existing three thermal aging models for
Gyo-Geun Youn   +2 more
doaj   +1 more source

Mass Transport Behaviors in Graphene and Polyaniline Heterostructure–Based Microsupercapacitors

open access: yesAdvanced Energy & Sustainability Research, 2021
The development of miniaturized energy storage components with high areal performance for emerging electronics depends on scalable fabrication techniques for thick electrodes and an in‐depth understanding of the intrinsic properties of materials.
Cheng Chen   +10 more
doaj   +1 more source

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