Results 21 to 30 of about 5,891 (263)

Study on droplet transition behavior, bead geometric characteristics and formability of wire + arc additively manufactured Inconel 718 alloy by using CMT MIX+ Synchropulse process

Journal of Materials Research and Technology, 2022
In this paper, the droplet transfer behavior, geometric characteristics of weld bead and formability of CMT MIX + Synchropulse (CSP) wire + arc additively manufactured Inconel 718 alloy under high wire feeding speed are studied.
Peng-Cheng Huan, Xiao-Nan Wang, Qing-Yu Zhang, Hong-Shuang Di, Xia-Ming Chen, Yu Chen, Xia Wei   +6 more
doaj   +1 more source

A numerical analysis on molten droplet hydrodynamics in sodium pool

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The risk and consequences of vapor explosion during severe accidents are among the most critical safety problems to be considered in next-generation sodium-cooled fast reactors. The melt of the core material (corium) may be produced in the event of inadequate core cooling and/or during Loss of Coolant Accident (LOCA) leading to ...
Nassir Yassin, Zhi-Gang Zhang, Qi Wu, Fang Wang, Zhi Yang, Ahmed Rabih, Mohsen M. M. Ali   +6 more
openaire   +1 more source

Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration

Frontiers in Energy Research, 2022
Understanding a reliable description of the heat transfer in the molten pool with three-layer configuration is inevitable for the design of severe accident mitigation measures in research reactors, such as IVR-ERVC.
Jian Deng, Dahuan Zhu, Yuejian Luo, Hongping Sun, Ming Zhang, Lili Liu, Qingan Xiang, Xiaoli Wu, Youyou Xu, Qingwen Xiong   +9 more
doaj   +1 more source

Effectiveness in use of molten pool heat

, 2001
Published: [Dmitrik V.V., Shevchenko Valentina V. Effectiveness in use of molten pool heat // Paton Welding Journal (ISSN 0957-798X), #04. - Kiyv: The National Academy of Sciences of Ukraine, The E.O. Paton Electric Welding Institute of the NAS of Ukraine, International Association "Welding", 2001. - P. 24-26.
Dmitrik V.V., Shevchenko Valentina V.
openaire   +2 more sources

Numerical Simulation and Industrial Experiment of Vacuum Arc Remelting ϕ690 mm Large-sized GH4738 Superalloy Ingot [PDF]

Teshugang
To study the vacuum arc remelting process and improve the homogenization and cleanliness level of large-sized superalloy ingot， numerical simulation and industrial experiment were carried out to investigate the evolution of molten pool， solidification ...
Zhao　Peng, Gui　Kaixuan, Qu　Jinglong, Yang　Shufeng
doaj   +1 more source

Prediction of GTAW penetration state based on enhanced knowledge of dynamic morphology molten pool

Hanjie xuebao
To achieve online monitoring of welding penetration status, ensure weld quality, and promote the development of robotic intelligent technology, a knowledge-enhanced prediction method for Gas Tungsten Arc Welding (GTAW) penetration status based on molten ...
Yuxiang HONG, Xiangzhi XIE, Xingxing HE, Dong DU, Baohua CHANG   +4 more
doaj   +1 more source

Molten Pool Image Segmentation Based on Adaptive Multi-Scale Attention Mechanism

IEEE Access
This study presents an innovative segmentation algorithm that seamlessly integrates an adaptive multi-scale attention mechanism with the Lossab loss function to tackle challenges like overlapping molten pool contours and arc interference during image ...
Yuefeng Chen, Weihua Liu, Qing Yang, Huabin Chen, Qi Jiang   +4 more
doaj   +1 more source

A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline

FEBS Open Bio, EarlyView.
Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey, Vaishnavi Sanjayan, Praveen Singh, Shantanu Sengupta, Anand Kumar Bachhawat   +4 more
wiley   +1 more source

Welding deviation measurement method based on molten pool image analysis

Hanjie xuebao
During full-position gas arc welding at the consumable arc welding electrode of pipes, different azimuth angles of the pipe have different effects on the shape of the molten pool, and the trailing angle of the molten pool is closely related to the ...
Zhongren WANG, Hai XIA, Xiaofeng MA, Wen ZHANG, Kepeng CHEN, Rongli ZHAO, Tielin SHI   +6 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source