A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDO...A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the coating of primary NMC particles significantly reduces the stress generation by efficiently accommodating the volume change associated with the lithium diffusion,and the coating layer plays roles both as a cushion against the volume change and a channel for the lithium transport,promoting the lithium distribution across the secondary particles more homogeneously.Besides,the lower stiffness,higher ionic conductivity,and larger thickness of the coating layer improve the stress mitigation.This paper provides a mathematical framework for calculating the chemo-mechanical responses of anisotropic electrode materials and fundamental insights into how the coating of NMC active particles mitigates stress levels.展开更多
目的:以随机化、控制性、盲法设计分析一种新型光动力疗法治疗牙周疾病病人时存在的潜行性的性别差异。方法:本研究经伦理委员会同意后,入选45例病人(每位病人至少有4个以上≥5mm的牙周袋并分布在两个以上区域内)。所有病人在接受基础...目的:以随机化、控制性、盲法设计分析一种新型光动力疗法治疗牙周疾病病人时存在的潜行性的性别差异。方法:本研究经伦理委员会同意后,入选45例病人(每位病人至少有4个以上≥5mm的牙周袋并分布在两个以上区域内)。所有病人在接受基础检查、龈下刮治和根面平整(subgingival scaling and rootplanning)治疗后,随机分为3组,其中A组在SRP之后接受一次PERIOWAVE光动力治疗,B组在SRP后接受一次PERIOWAVE治疗以及在6周后再一次接受激光治疗,而C组仅接受SRP治疗。在6周以及12周来访中检查牙周袋深度、附着丧失,以Mann-Whitney秩和检验分析疗效的性别差异。结果:SRP组、A组均为8位男性7位女性,B组为7位男性8位女性。在6周、12周时,各组CAL均增加>1.1mm,6周时CAL增加无明显差异,然而12周时B组男性CAL平均增加2.06mm,明显高于女性组(1.61mm)(P=0.031),与女性组相比,接受两次激光治疗的男性CAL增加27.4%。结论:在本研究条件下,牙周袋深度≥5mm的男性牙周炎病人在接受两次光动力治疗后CAL增加超过女性病人27.4%。展开更多
At 45 MeV/u an experiment on fragmentation of projectile(<sup>20</sup>Ne)on <sup>165</sup>Ho was performed.An average reduced width σ<sub>0</sub> of 84.3±6.6 MeV/c was obtaine...At 45 MeV/u an experiment on fragmentation of projectile(<sup>20</sup>Ne)on <sup>165</sup>Ho was performed.An average reduced width σ<sub>0</sub> of 84.3±6.6 MeV/c was obtained by separating the break=up of all com-plex fragments of <sup>20</sup>Ne from the evaporation part of compound nucleus in momentum spectra.展开更多
基金the National Research Foundation of Korea(Nos.2018R1A5A7023490 and 2022R1A2C1003003)。
文摘A chemo-mechanical model is developed to investigate the effects on the stress development of the coating of polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the coating of primary NMC particles significantly reduces the stress generation by efficiently accommodating the volume change associated with the lithium diffusion,and the coating layer plays roles both as a cushion against the volume change and a channel for the lithium transport,promoting the lithium distribution across the secondary particles more homogeneously.Besides,the lower stiffness,higher ionic conductivity,and larger thickness of the coating layer improve the stress mitigation.This paper provides a mathematical framework for calculating the chemo-mechanical responses of anisotropic electrode materials and fundamental insights into how the coating of NMC active particles mitigates stress levels.
文摘目的:以随机化、控制性、盲法设计分析一种新型光动力疗法治疗牙周疾病病人时存在的潜行性的性别差异。方法:本研究经伦理委员会同意后,入选45例病人(每位病人至少有4个以上≥5mm的牙周袋并分布在两个以上区域内)。所有病人在接受基础检查、龈下刮治和根面平整(subgingival scaling and rootplanning)治疗后,随机分为3组,其中A组在SRP之后接受一次PERIOWAVE光动力治疗,B组在SRP后接受一次PERIOWAVE治疗以及在6周后再一次接受激光治疗,而C组仅接受SRP治疗。在6周以及12周来访中检查牙周袋深度、附着丧失,以Mann-Whitney秩和检验分析疗效的性别差异。结果:SRP组、A组均为8位男性7位女性,B组为7位男性8位女性。在6周、12周时,各组CAL均增加>1.1mm,6周时CAL增加无明显差异,然而12周时B组男性CAL平均增加2.06mm,明显高于女性组(1.61mm)(P=0.031),与女性组相比,接受两次激光治疗的男性CAL增加27.4%。结论:在本研究条件下,牙周袋深度≥5mm的男性牙周炎病人在接受两次光动力治疗后CAL增加超过女性病人27.4%。
基金①The project supported by the U.S.Department of Energy.the Robert A.Welch Foundation theNational Natural Science Foundation of China
文摘At 45 MeV/u an experiment on fragmentation of projectile(<sup>20</sup>Ne)on <sup>165</sup>Ho was performed.An average reduced width σ<sub>0</sub> of 84.3±6.6 MeV/c was obtained by separating the break=up of all com-plex fragments of <sup>20</sup>Ne from the evaporation part of compound nucleus in momentum spectra.
