Results 71 to 80 of about 6,433 (219)

Crystallization of Cathode Active Material Precursors from Tartaric Acid Solution

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
This work investigates a novel approach for closing the gap between recycling and production of lithium‐ion battery cathode material. The new concept is based on antisolvent crystallization of metal carboxylates, which can be directly used as precursors in production of cathode material.
Chunyan Ma, Mona Mohamoud, Tiaan Punt, Jinlong Li, Michael Svärd, Kerstin Forsberg   +5 more
wiley   +1 more source

Research on Nonlinear Variations of Frequency Domain Dielectric Characteristics of Typical Oil-paper Insulation Model

Journal of Harbin University of Science and Technology
Oil-paper insulation is the main insulation system for oil immersed power equipment. Accurately evaluating its aging status is crucial for the power grid operation and maintenance department to formulate maintenance strategies.
XU Minhu, ZHANG Jian, YANG Hongda, ZHANG Peng, LEI Shengjie, MA Chenyang, WANG Bingjie, ZHANG Mingze   +7 more
doaj   +1 more source

Space Charge Behavior in Paper Insulation Induced by Copper Sulfide in High-Voltage Direct Current Power Transformers

Energies, 2015
The main insulation system in high-voltage direct current (HVDC) transformer consists of oil-paper insulation. The formation of space charge in insulation paper is crucial for the dielectric strength.
Ruijin Liao, Ende Hu, Lijun Yang, Yuan Yuan   +3 more
doaj   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Study of Grain Boundary Characters under Intergranular Corrosion in Copper Conductor and Its Relationship with Paper Oil Insulation in Transformer

International Journal of Electrochemical Science, 2015
The properties of materials such as corrosion, creep resistance, and weld ability are relevant to special and random grain boundaries which belongs to the category of Grain Boundary Engineering (GBE).
Yuan Yuan, Xiao He, Zhilong Xu, XinLiang Guo, HuanHuan Xia   +4 more
doaj   +1 more source

Nested Carbon Governance in Southeast Asia: Towards Just Nature‐Based Solutions?

Environmental Policy and Governance, EarlyView.
ABSTRACT Nature‐based solutions (NbS) have gained prominence as an integrated approach to addressing climate change and biodiversity loss while supporting sustainable development. Yet, their implementation across Southeast Asia remains fragmented and often contested.
Helena Varkkey, Michelle Ann Miller, David Taylor   +2 more
wiley   +1 more source

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

Energy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri, Majd G. Batarseh, Hamzeh J. Jaber, Ayman Faza, Wejdan Abu Elhaija   +4 more
wiley   +1 more source

Methanol Equilibrium Curves of Power Transformer Oil–Paper Insulation

Energies
To eliminate the problem of the aging of cellulose insulation in the manufacturing stage, a new drying method is being developed based on the use of methanol vapors.
Piotr Przybylek
doaj   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

High‐performance heat‐resistant tactile sensor for intelligent sensing and safe operation

FlexMat, EarlyView.
Abstract Tactile sensing in high‐temperature environments remains a critical challenge for robotic systems operating in industrial manufacturing, food processing, and other high‐temperature assembly operations. Herein, we report a heat‐resistant flexible tactile sensor with comprehensive high performance, featuring a hierarchical architecture ...
Yugang Chen, Shasha Wang, Haopeng Wang, Xun Fu, Qifei Lv, Shuting Xie, Yan Li, Jiangtian Tan, Linghai Xie   +8 more
wiley   +1 more source