在高强度X射线辐照下,X射线自由电子激光(X-ray Free-electron Laser,XFEL)装置的光学元件薄膜产生的大量辐照缺陷会导致材料结构损伤,引起宏观性能退化,从而影响其服役寿命,进而影响到XFEL装置的可靠性和稳定性。为了研究材料辐照缺陷...在高强度X射线辐照下,X射线自由电子激光(X-ray Free-electron Laser,XFEL)装置的光学元件薄膜产生的大量辐照缺陷会导致材料结构损伤,引起宏观性能退化,从而影响其服役寿命,进而影响到XFEL装置的可靠性和稳定性。为了研究材料辐照缺陷过程以及方便耐辐照材料的数据积累,提供了一种基于Python语言的自动化辐照模拟程序AISL(Automatic Irradiation Simulation based on LAMMPS),以支持采用分子动力学方法模拟XFEL对材料的辐照损伤进行微观研究。AISL实现了模拟任务的自动化工作流管道,包括高通量计算任务的管理和执行,计算数据的高可靠存储和热力学信息的后处理。基于AISL在XFEL光学元件金属薄膜辐照损伤模拟的应用实例研究,表明了AISL是一种便捷开展高通量自动化的辐照模拟研究的有效方法,能够显著提高基于LAMMPS的材料辐照损伤模拟计算效率。展开更多
Background:Dysembryoplastic neuroepithelial tumors(DNTs)are common causes of intractable epilepsy in pediatric epilepsy patients.The effect of surgical intervention is often limited when the tumor is located in the pr...Background:Dysembryoplastic neuroepithelial tumors(DNTs)are common causes of intractable epilepsy in pediatric epilepsy patients.The effect of surgical intervention is often limited when the tumor is located in the precentral gyrus.Furthermore,complete surgical resection is often not performed in order to avoid permanent neurological deficits.Methods:Here,we present a pediatric patient with intractable epilepsy caused by a simple DNT located in the precentral gyrus.Intracranial electrodes were implanted and used in combination with magnetic resonance imaging,video-electroencephalography and electrical cortical stimulation to assess neurological function,and where the epileptogenic zone was located.Results:The results of intracranial electrode monitoring suggested that the epileptogenic zone was located in the tumor area and that cortical function had been reorganized.We completely resected the tumor based on these findings.The patient has been seizure free after the surgery and has not had any neurological deficits.Conclusions:Simple form DNTs in the precentral gyrus can be completely resected with careful preoperative assessment of cortical function.Cortical reorganization could partly explain the functional preservation after surgery.展开更多
文摘在高强度X射线辐照下,X射线自由电子激光(X-ray Free-electron Laser,XFEL)装置的光学元件薄膜产生的大量辐照缺陷会导致材料结构损伤,引起宏观性能退化,从而影响其服役寿命,进而影响到XFEL装置的可靠性和稳定性。为了研究材料辐照缺陷过程以及方便耐辐照材料的数据积累,提供了一种基于Python语言的自动化辐照模拟程序AISL(Automatic Irradiation Simulation based on LAMMPS),以支持采用分子动力学方法模拟XFEL对材料的辐照损伤进行微观研究。AISL实现了模拟任务的自动化工作流管道,包括高通量计算任务的管理和执行,计算数据的高可靠存储和热力学信息的后处理。基于AISL在XFEL光学元件金属薄膜辐照损伤模拟的应用实例研究,表明了AISL是一种便捷开展高通量自动化的辐照模拟研究的有效方法,能够显著提高基于LAMMPS的材料辐照损伤模拟计算效率。
文摘Background:Dysembryoplastic neuroepithelial tumors(DNTs)are common causes of intractable epilepsy in pediatric epilepsy patients.The effect of surgical intervention is often limited when the tumor is located in the precentral gyrus.Furthermore,complete surgical resection is often not performed in order to avoid permanent neurological deficits.Methods:Here,we present a pediatric patient with intractable epilepsy caused by a simple DNT located in the precentral gyrus.Intracranial electrodes were implanted and used in combination with magnetic resonance imaging,video-electroencephalography and electrical cortical stimulation to assess neurological function,and where the epileptogenic zone was located.Results:The results of intracranial electrode monitoring suggested that the epileptogenic zone was located in the tumor area and that cortical function had been reorganized.We completely resected the tumor based on these findings.The patient has been seizure free after the surgery and has not had any neurological deficits.Conclusions:Simple form DNTs in the precentral gyrus can be completely resected with careful preoperative assessment of cortical function.Cortical reorganization could partly explain the functional preservation after surgery.
