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工务线路设备检查内容及实施措施的探讨 被引量:1
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作者 唐文龙 徐亚平 卫峰 《铁道建筑》 北大核心 2004年第3期65-67,共3页
通过对现行工务手工线路设备检查记录、方法和内容的探讨 ,指出其存在的不足 ,提出适合当前提速需要的设备检查措施 ,包括加强设备检查。
关键词 线路设备 手工检查 检查记录 改进措施 检查内容 铁路
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Sysmex XE-2100血细胞分析仪有核红细胞报警可信度分析 被引量:5
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作者 张洁 李霞 王银锋 《宁夏医科大学学报》 2014年第12期1412-1413,共2页
目的评价Sysmex XE-2100血细胞分析仪有核红细胞(nucleated red blood cell,NRBC)报警提示的可信度。方法随机选取200例血液病患者和300例非血液病患者的外周血标本进行检测,统计仪器的NRBC报警信息,并与手工显微镜检查结果进行比较。结... 目的评价Sysmex XE-2100血细胞分析仪有核红细胞(nucleated red blood cell,NRBC)报警提示的可信度。方法随机选取200例血液病患者和300例非血液病患者的外周血标本进行检测,统计仪器的NRBC报警信息,并与手工显微镜检查结果进行比较。结果 Sysmex XE-2100全自动血细胞分析仪对血液病组NRBC报警提示的阴性预测值93.3%,阳性预测值42.5%,灵敏度80.9%,特异性70.9%,仪器报警测得的有核红细胞的阳性标本数和阴性标本数与手工显微镜检查测得的阴阳性标本数结果差异有统计学意义(P<0.05);仪器对非血液病组NRBC报警提示的阴性预测值100%,阳性预测值27.3%,灵敏度100%,特异性97.30%,仪器结果与手工显微镜检查结果差异无统计学意义(P>0.05);将两组结果合并,仪器对所有标本NRBC报警提示的阴性预测值98.0%,阳性预测值40.7%,灵敏度82.2%,特异性88.1%,仪器结果与手工显微镜检查结果差异有统计学意义(P<0.05)。结论 Sysmex XE-2100血细胞分析仪检测外周血,对NRBC有良好的过筛功能,但还不能完全代替手工显微镜检查,仍需严格按照血细胞复检规则对标本进行复检。 展开更多
关键词 血细胞分析仪 有核红细胞 手工显微镜检查
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Real-Time, Automatic and Wireless Bridge Monitoring System Based on MEMS Technology
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作者 Bo Qiu Jianda Tan 《Journal of Civil Engineering and Architecture》 2016年第9期1027-1031,共5页
Currently, the monitoring of bridges in China heavily relies on manual operation, which has several major problems. It generally takes a very long time to complete an inspection process on bridges. The manual data is ... Currently, the monitoring of bridges in China heavily relies on manual operation, which has several major problems. It generally takes a very long time to complete an inspection process on bridges. The manual data is sometimes unreliable or even wrong in the case of careless operation. The inspection activity itself is dangerous for inspectors, e.g., bridges are located in the sea or river. Some semi-automatic monitoring methods are recently employed, but they are either very expensive or do not work properly. Therefore, the traditional bridge monitoring process becomes an increasing challenge for bridge operators. In this paper, a real-time and automatic bridge monitoring system is presented to meet the bridge monitoring needs, and MEMS (Micro Electro Mechanical Systems) are the key building block in this system. By using the MEMS-based sensors, it is much more efficient and accurate in monitoring bridges with the measurement of inclination, acceleration, displacement, moisture, temperature, stress and other data. 展开更多
关键词 Bridge monitoring system MEMS (Micro Electro Mechanical Systems) AUTOMATIC REAL-TIME wireless.
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