Results 141 to 150 of about 6,090,161 (297)

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Scenarios for a Clean Energy Future: Interlaboratory Working Group on Energy-Efficient and Clean-Energy Technologies

, 2000
This study estimates the potential for public policies and R and D programs to foster clean energy technology solutions to the energy and environmental challenges facing the nation.
The Interlaboratory Working Group on Energy-Efficient and Clean-Energy Technologies
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Energy-based indicators and optimization of coal pillar width in gob-side entry driving

Scientific Reports
Gob-side entry driving is widely applied in deep coal mines, where rapid unloading of surrounding rock on the gob side induces stress redistribution, and the coal pillar is consequently regarded as a key load-bearing structure.
Yi Zhang, Qingli Gao, Wei Zhang, Jin Chen, Hengkai Wang   +4 more
doaj   +1 more source

Numerical analysis on energy-reducing and outburst-eliminating mechanism in coal mass with reaming and cavitation

Meikuang Anquan
Hydraulic flushing technology had been widely used in the process of gas enhanced extraction in soft coal mass. However, few studies had revealed the energy-reducing and outburst-eliminating mechanism in hydraulic flushing coal mass from the perspective ...
Shuqing YANG, Hao ZHANG, Lei ZHANG, Wenbin HAN, Zhihui HAO, Di ZHANG, Jiamei CHANG, Zhipeng CHE, Xianji LAI   +8 more
doaj   +1 more source

An obstacle problem for the p-elastic energy

Calculus of Variations and Partial Differential Equations
AbstractIn this paper we consider an obstacle problem for a generalization of the p-elastic energy among graphical curves with fixed ends. Taking into account that the Euler–Lagrange equation has a degeneracy, we address the question whether solutions have a flat part, i.e. an open interval where the curvature vanishes. We also investigate which is the
Dall'Acqua, Anna, Müller, Marius, Okabe, Shinya, Yoshizawa, Kensuke   +3 more
openaire   +4 more sources

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Study on Energy Evolution Law of Rocks With Different Lithologies and Sizes

Energy Science & Engineering
Investigating the actual patterns of energy accumulation and release in roof rock, particularly with varying stiffnesses in mining environments, is crucial.
Yanchun Yin, Zitong Gao, Zhigang Zhao, Shudong He, Liyuan Liu, Guoying Li   +5 more
doaj   +1 more source

Investigation of the effect of bedding and confining pressure on the energy evolution of shale during the unloading process

Natural Gas Industry B
To explore the effect of bedding and initial confining pressure on the energy evolution characteristics of shale during the unloading process, samples were drilled with different bedding angles, unloading tests were conducted under different initial ...
Lianlang Hou, Xiangjun Liu, Wei Zeng, Lixi Liang, Linyun Zhao   +4 more
doaj   +1 more source