Results 1 to 10 of about 3,594 (178)
Experience of laparoscopic ultrasound-guided ablation of diaphragmatic liver tumors [PDF]
, 2023 Objective·To investigate the safety and effectiveness of laparoscopic ultrasound-guided microwave ablation for phrenic surface liver tumors, as well as the specific experience of its use.Methods·A retrospective analysis was performed on 13 cases of ...
WANG Yi +3 more
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Numerical simulation of high frequency guided wave testing for anchor bolt defects [PDF]
, 2023 Previous research has confirmed that only high-frequency guided waves larger than 1 MHz have the minimum attenuation detection mode for anchor bolt widely used in underground projects.
Changsuo ZHANG, Yanyu GUO, Yue ZHANG
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Survey of IoT security research: threats, detection and defense [PDF]
, 2021 Based on the IoT security literatures published in the international conferences on network security (ACM CCS, USENIX Security, NDSS, IEEE S＆amp;P) in recent five years, and other prominent researches, the works from the perspective of ＆quot;threat ...
Cong LIU +7 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 2016 【目的】 寻求一种安全、微创、可信的构建椎动脉型颈椎病动物模型的方法。【方法】 高频超声监测正常猕猴（６只，雌雄各半，年龄３．５ ～ ５．５岁，体质量４ ～ ６ ｋｇ）的椎动脉血流状况，在高频超声的引导下通过骨穿针在猕猴颈Ｃ５－６左侧椎动脉旁注射复合重组人骨形态发生蛋白－２ （ｒｈＢＭＰ－２ ）的磷酸钙骨水泥１．５ ｍＬ来制作椎动脉型颈椎病模型，并用高频超声监测造模后椎动脉收缩期峰值血流（ＶＳ） 、舒张期末峰值血流（ＶＤ）、阻力指数（ＲＩ）、血管内径（Ｄ ...
doaj +1 more source
Experiment on Efficient Aluminum Removal from Waste Batteries [PDF]
The efficient recovery of metal elements from waste batteries not only makes waste resources, but also helps the battery industry to form a dynamic and sustainable cycle of manufacturing, use and recycling, and reduces the harm to the ecological ...
Boran ZHANG +4 more
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, 2021 目的探讨产后腹直肌分离的相关危险因素。方法回顾性分析2019年6月至2020年10月在中山大学附属第三医院岭南医院产检并分娩，且产后3个月内使用高频超声探头测量腹直肌的孕妇共2 394例，根据腹直肌是否分离，分为非DRA组321例和DRA组2 073例。收集两组孕期的一般临床特点和分娩结局，包括：年龄、身高、产次、体质量指数、是否合并糖尿病、分娩孕周、分娩方式和新生儿出生体质量等。对比分析两组之间的临床特点差异，通过Logistic回归分析方法分析DRA发生的危险因素 ...
孟召然 +4 more
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Water-jet ultrasound indentation system : its miniaturization and detection of articular cartilage degeneration [PDF]
, 2016 2010-2011 > Academic research: refereed > Publication in refereed journalVersion of ...
Huang, YP, Zheng, YP
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Formation mechanism of oversized DS-type inclusions in low oxygen special steel [PDF]
, 2016 To investigate the generation mechanism of oversized DS-type inclusions in low oxygen special steel,a comparative analysis of inclusions was performed on overseas and domestic special steel samples by the automatic secondary electron microscopy ASPEX ...
HOU Ze-wang +3 more
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, 2006 【目的】界定颈动脉内中膜厚度及其斑块分级在估测冠心病中的最佳预测值。【方法】用高频超声检测125例患者颈总动脉内中膜厚度、颈动脉分叉处内中膜厚度，以及颈动脉斑块分级，评价它们估测冠心病的作用，并用ROC曲线评价它们的诊断价值。【结果】冠心病组颈总动脉及分叉处内中膜增厚、斑块分级高，与对照组比较差异有统计学意义，P〈0．05；ROC分析显示颈总动脉及分叉处内中膜增厚、斑块分级均可估测冠心病，其曲线下面积分别为0．70、0．75、0．74；将颈总动脉分叉处内中膜增厚≥1．3mm，颈总动脉内中膜增厚≥0 ...
凃昌 +5 more
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, 2007 目的:比较CT和X线平片对肠梗阻的检查技术及诊断价值。方法:比较CT、X线CR平片对肠梗阻患者的检查操作难度、检查消耗时间、图像质量、患者舒适度及图像显示病变的敏感性及准确性,同时比较患者及开单医生对X线CR平片、CT这两种检查的接受度。结果:在CT、X线CR平片对肠梗阻患者的检查操作难度、检查消耗时间、图像质量、患者舒适度及图像显示病变的敏感性及准确性方面,CT显著优于X线CR平片;但患者及开单医生对X线CR平片检查的接受度又显著高于CT。结论 ...
周水添 +4 more
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