资讯

TPS法已经由标准化组织批准为标准(Plastics—Determination of thermal conductivity and thermal diffusivity, Part 2:Transient plane heat source (hot disc) method. ISO 22007-2:2015)。
其他指标差异:与 HCs 相比,首次发作的药物抵抗性 AVHs 患者和可治疗性 AVHs 患者均显示出 FA、轴向扩散率(Axial Diffusivity,AD)值降低,径向扩散率(Radial Diffusivity,RD)和平均扩散率(Mean Diffusivity,MD)值增加,表明其 WM 纤维束的组织结构、轴突和髓鞘水平存在显著异常,且药物抵抗性 AVHs 患者的 WM ...
通过磁脑图(Magnetoencephalography,MEG)来测量 RS PAF,它能够捕捉大脑的电磁活动,为研究大脑功能提供重要信息;利用扩散张量成像(Diffusion Tensor Imaging,DTI)评估视辐射白质的结构特性,DTI 可以量化组织微观结构,如分数各向异性(Fractional Anisotropy,FA)、平均扩散率(Mean ...
现版本瘤子生成的代码中: 如果不去掉的话,按当前的计算会有一个非常大的范围内的幸运取值不会对结果产生任何影响,81幸运和99幸运计算出的幸运系数都会是9,这18点幸运是几个麦乐鸡肾不说,再涨1点就会产生质变什么的 ...
来源:磁共振成像 作者:郭浩明,吕发金,重庆医科大学附属第一医院放射科 脑白质高信号(white matter hyperintensity,WMH)又称脑白质病变(Leukoaraiosis,LA)。该影像学术语最早由神经病学专家Hachinski提出。该病常表现为T2WI或T2液体衰减反转恢复序列(fluidattenuated inversion ...
As a result, the diffusional properties obtained from AIMD simulations are often plagued by poor statistics. In this paper, we re-examine the process to estimate diffusivity and ionic conductivity ...
2013年1月,国际标准化组织(ISO)正式发布了Metallic and other inorganic coatings—Determination of thermal diffusivity of thermally sprayed ceramic coatings by laser flash method(ISO ...
The autocorrelation function for a single uniform size distribution is a decaying exponential function where particle diffusivity is easily obtained from the decay time. Finally the particle radius ...
In this application note, samples made out of a polycarbonate, Lexan 123 R, matrix reinforced with different amounts of nanofibres from Hyperion Catalysis (FIBRIL) are tested with the Hot Disk Thermal ...