A multi-group cross-section library is fundamental for deterministic lattice physics calculations.Most existing multi-group cross-section libraries are customized for particular computer codes,as well as for particula...A multi-group cross-section library is fundamental for deterministic lattice physics calculations.Most existing multi-group cross-section libraries are customized for particular computer codes,as well as for particular types of nuclear reactors.This paper presents an HDF5-format multi-group cross-section library named XPZLIB.XPZLIB was produced using a selfdeveloped XPZR module integrated into the NJOY2016 code,and an in-house PyNjoy2022 system was developed for autoprocessing.XPZLIB contains detailed data content and well-organized data structures that are user-and developer-friendly.Three typical XPZLIBs with different numbers of energy groups,nuclides,and depletion reaction types were released via the Tsinghua cloud website.Furthermore,the applicability of the released XPZLIBs was investigated using HTGR and PWR lattice calculations,which can provide guidance for applying XPZLIB under different scenarios.展开更多
[目的]研究甘草黄酮对UVB照射后产生光老化现象的HDF细胞保护作用。[方法]采用30 m J/cm^2的UVB照射HDF细胞建立损伤模型;加入不同浓度的甘草黄酮,24 h后MTT法检测细胞活性;用试剂盒法测定细胞上清液中谷胱甘肽过氧化物酶(GSH-Px)、超...[目的]研究甘草黄酮对UVB照射后产生光老化现象的HDF细胞保护作用。[方法]采用30 m J/cm^2的UVB照射HDF细胞建立损伤模型;加入不同浓度的甘草黄酮,24 h后MTT法检测细胞活性;用试剂盒法测定细胞上清液中谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量。[结果]甘草黄酮浓度为10^(-9)、10^(-10)、10^(-11)mol/L时,能使受UVB照射损伤的HDF细胞活性增强;甘草黄酮浓度为10^(-9)、10^(-10)mol/L时,GSH-Px、SOD活性升高,MDA含量降低;甘草黄酮浓度为10^(-11)mol/L时,SOD活性升高、MDA含量降低。[结论]甘草黄酮能减轻UVB对HDF细胞的损伤,其机制可能与抑制氧化损伤、提高SOD活性有关。展开更多
基金supported by the National Key R&D Program of China(2020YFE0202500).
文摘A multi-group cross-section library is fundamental for deterministic lattice physics calculations.Most existing multi-group cross-section libraries are customized for particular computer codes,as well as for particular types of nuclear reactors.This paper presents an HDF5-format multi-group cross-section library named XPZLIB.XPZLIB was produced using a selfdeveloped XPZR module integrated into the NJOY2016 code,and an in-house PyNjoy2022 system was developed for autoprocessing.XPZLIB contains detailed data content and well-organized data structures that are user-and developer-friendly.Three typical XPZLIBs with different numbers of energy groups,nuclides,and depletion reaction types were released via the Tsinghua cloud website.Furthermore,the applicability of the released XPZLIBs was investigated using HTGR and PWR lattice calculations,which can provide guidance for applying XPZLIB under different scenarios.
文摘[目的]研究甘草黄酮对UVB照射后产生光老化现象的HDF细胞保护作用。[方法]采用30 m J/cm^2的UVB照射HDF细胞建立损伤模型;加入不同浓度的甘草黄酮,24 h后MTT法检测细胞活性;用试剂盒法测定细胞上清液中谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量。[结果]甘草黄酮浓度为10^(-9)、10^(-10)、10^(-11)mol/L时,能使受UVB照射损伤的HDF细胞活性增强;甘草黄酮浓度为10^(-9)、10^(-10)mol/L时,GSH-Px、SOD活性升高,MDA含量降低;甘草黄酮浓度为10^(-11)mol/L时,SOD活性升高、MDA含量降低。[结论]甘草黄酮能减轻UVB对HDF细胞的损伤,其机制可能与抑制氧化损伤、提高SOD活性有关。
