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地铁盾构渣土处理处置技术研究进展 被引量:1
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作者 崔皓 陈柏廉 +3 位作者 胡贺松 马珊珊 吴晓婷 黄郴慧 《广州建筑》 2023年第5期141-144,共4页
作为城市地下空间开发的副产物,盾构渣土由于产量大、流动性强、含各类添加剂而难以处理,是“无废城市”建设亟需解决的关键问题。为了探索更有效的盾构渣土处理处置方法,本文从渣土生产过程出发,详细阐述了不同地层下渣土的不同特性,... 作为城市地下空间开发的副产物,盾构渣土由于产量大、流动性强、含各类添加剂而难以处理,是“无废城市”建设亟需解决的关键问题。为了探索更有效的盾构渣土处理处置方法,本文从渣土生产过程出发,详细阐述了不同地层下渣土的不同特性,以及对应的渣土改良技术。在此基础上,对目前常用的盾构渣土处理处置技术进行了具体分析。盾构渣土直接利用技术应用较多,但是处理量有限,效率不高;渣土资源化利用技术研究较多,但是大多处于实验室研究阶段,市场化难度较大。基于以上结论,本文提出了目前渣土处理处置领域存在的三大问题:盾构渣土分类与利用缺乏标准支撑、盾构渣土管理数字化程度不高和盾构渣土的利用效率较低,提出了相应的解决方案。本文的研究结果能够为“无废城市”建设提供理论支撑和技术支持。 展开更多
关键词 地铁盾构渣土 资源化 处置技术
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Impact of adjustment measures on reducing outpatient waiting time in a community hospital: application of a computer simulation 被引量:6
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作者 chen bai-lian LI En-dong +3 位作者 Kazunobu Yamawuchi Ken Kato Shinji Naganawa MIAO Wei-jun 《Chinese Medical Journal》 SCIE CAS CSCD 2010年第5期574-580,共7页
Background As an important determinant of patient satisfaction, waiting time, has gained increasing attention in the field of health care services. The present study aimed to illustrate the distribution characteristic... Background As an important determinant of patient satisfaction, waiting time, has gained increasing attention in the field of health care services. The present study aimed to illustrate the distribution characteristics of waiting time in a community hospital and explore the impact of potential measures to reduce outpatient waiting time based on a computer simulation approach. Methods Dudng a one-month study period in 2006, a cross-sectional study was conducted in a community hospital located in Shanghai, China. Baseline data of outpatient waiting time were calculated according to the records of registration time and payment time. A simulation technique was adopted to investigate the impact of perspective reform methods on reducing waiting time. Results Data from a total of 10 092 patients and 26 816 medical consultations were collected in the study and 19 947 medical consultations were included. The average of the total visit time for outpatients in this hospital was 43.6 minutes in the morning, 19.1 minutes in the afternoon, and 34.3 minutes for the whole day studied period. The simulation results suggested that waiting time for outpatients could be greatly reduced through the introduction of appointment system and flexible demand-orientated doctor scheduling according to the numbers of patients waiting at different time of the workday. Conclusion Adoption of an appointment system and flexible management of doctor scheduling may be effective way to achieve decreased waiting time. 展开更多
关键词 waiting time OUTPATIENT appointment system
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