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Start Over Author "Lu, Yunkun" Publisher springer science and business media llc
9 results on '"Lu, Yunkun"'

3. A fast chemical reprogramming system promotes cell identity transition through a diapause-like state

Author

Chen, Xi, primary, Lu, Yunkun, additional, Wang, Leyun, additional, Ma, Xiaojie, additional, Pu, Jiaqi, additional, Lin, Lianyu, additional, Deng, Qian, additional, Li, Yuhan, additional, Wang, Weiyun, additional, Jin, Yan, additional, Hu, Zhensheng, additional, Zhou, Ziyu, additional, Chen, Guo, additional, Jiang, Liling, additional, Wang, Hao, additional, Zhao, Xiaoyang, additional, He, Xiangwei, additional, Fu, Junfen, additional, Russ, Holger A., additional, Li, Wei, additional, and Zhu, Saiyong, additional

Published
2023
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4. N6-methyladenosine modification-mediated mRNA metabolism is essential for human pancreatic lineage specification and islet organogenesis

Author

Ma, Xiaojie, primary, Cao, Jie, additional, Zhou, Ziyu, additional, Lu, Yunkun, additional, Li, Qin, additional, Jin, Yan, additional, Chen, Guo, additional, Wang, Weiyun, additional, Ge, Wenyan, additional, Chen, Xi, additional, Hu, Zhensheng, additional, Shu, Xiao, additional, Deng, Qian, additional, Pu, Jiaqi, additional, Liang, Chengzhen, additional, Fu, Junfen, additional, Liu, Jianzhao, additional, and Zhu, Saiyong, additional

Published
2022
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5. Effect of Phosphating and Heat Treatment on Magnetic Properties of Fe-3.3Si-6.5Cr Soft Magnetic Composites

Author

Tongchun Zhao, Lu Yunkun, Hui Ma, Xiaojie Wu, Ren Zhongkai, Junjie Hao, and Cunguang Chen

Subjects
010302 applied physics, chemistry.chemical_classification, Materials science, Scanning electron microscope, engineering.material, Condensed Matter Physics, Microstructure, Inductor, 01 natural sciences, Electronic, Optical and Magnetic Materials, Magnetic field, chemistry.chemical_compound, chemistry, X-ray photoelectron spectroscopy, Coating, Silicone resin, 0103 physical sciences, engineering, Composite material, 010306 general physics, Phosphoric acid
Abstract

Fe-3.3Si-6.5Cr powders were first treated by phosphoric acid solution and then mixed with epoxy-modified silicone resin uniformly, forming insulation coating. The Fe-3.3Si-6.5Cr soft magnetic composites were prepared by compaction and annealing treatment of the coated Fe-3.3Si-6.5Cr powders. The microstructure and composition of Fe-3.3Si-6.5Cr powders were analyzed by scanning electron microscope coupled with energy-dispersive spectrometer, Fourier-transform infrared spectra, and X-ray photoelectron spectroscopy, respectively. The magnetic properties were determined by the LCR bridge tester and an auto testing system for magnetic materials (MATS-2010SA). Results show that both proper phosphating treatment and annealing at higher temperature can improve the permeability and reduce the core loss of the Fe-3.3Si-6.5Cr SMCs. When the concentration of phosphoric acid was 0.5 wt% and the heat treatment temperature reached 500 °C, the Fe-3.3Si-6.5Cr SMCs showed the optimized magnetic properties, including the permeability (μe) of 44.7 H/cm, the core loss (P) of 521.8 mW/cm3 at the saturated magnetic flux density of 50 mT, and the frequency of 100 kHz. The Fe-3.3Si-6.5Cr SMCs with distinguished magnetic properties provide great application prospect in various fields such as filter inductors, transformers, and sensors.

Published
2020

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