目的:分析磁共振弥散加权成像技术在诊断多发性骨髓瘤中的应用价值.方法:选择2015年11月至2018年4月期间南京医科大学第一附属医院收治的56例多发性骨髓瘤患者作为研究对象.使用西门子Viro3.0T磁共振系统,为这56例患者采用磁共振弥散加权成像技术进行检查.然后,观察这56例患者病情的检出率,多发性骨髓瘤病灶的影像学表现,...
针对古青铜器年代鉴别任务需要大量的相关史料,鉴别耗时长以及主观性强等问题,提出一种新思路用于辅助考古专家对古青铜器进行分析和年代鉴别.所提方法在图像分类预训练权重的基础上应用深度学习方法对古青铜器进行年代鉴别:首先,通过大量的基础实验,在较为有代表性的4种网络模型中选出鉴别结果较好的EfficientNetV2-L作为基...
A voltage step-down circuit (100) that may provide an internal voltage (VINT) by reducing an external power source (VDD) has been disclosed. A voltage step-down circuit (100) may include a voltage step-down portion (10) and a compensation current source portion (20). Voltage step-down ...
The peroxidase-thiocyanate-hydrogen peroxide antimicrobial system Peroxidase (lactoperoxidase or myeloperoxidase, EC 1.11.1.7), thiocyanate and H 2O 2 are the components of an antimicrobiol system which is effective against a number of organisms. H 2O 2 may be formed endogenously (presumably by ...