I type system model of CCCAM(Contention-Collision Cancellation Access Mode) is studied through mathematical modelling and simulation. There are two innovations: (1) in the process of mathematical modelling, the instan...I type system model of CCCAM(Contention-Collision Cancellation Access Mode) is studied through mathematical modelling and simulation. There are two innovations: (1) in the process of mathematical modelling, the instance of 'serving customers unsuccessfully' is taken into account; (2) the time at which customers depart after having been served successfully are chosen to be the embedded point, thereby 'free period' is introduced reasonably. So the mathematical modelling and analysis result in this paper are significant for application of wire star LAN and wireless star LAN.展开更多
Hanoi’s rapid urbanization has led to a surge in private vehicle ownership, particularly motorcycles, amidst inadequate public transportation infrastructure. Despite government efforts, many still prefer motorized tr...Hanoi’s rapid urbanization has led to a surge in private vehicle ownership, particularly motorcycles, amidst inadequate public transportation infrastructure. Despite government efforts, many still prefer motorized transport, citing mobility and safety concerns, exacerbated by insufficient pedestrian infrastructure. This study examines the motivations behind this reliance on motorized vehicles, particularly motorcycles, in Hanoi. Findings reveal safety and convenience as primary factors driving motorized transport use, especially for accessing bus stations. Economic incentives could promote non-motorized travel and public transport adoption. Policy implications highlight the importance of addressing economic factors and improving access infrastructure to manage motorized vehicle reliance and foster sustainable urban mobility in Hanoi.展开更多
目的探讨Donabedian质量理论干预模式对行血管通路术的血液透析患者血管通路并发症发生率的影响。方法选取福建医科大学附属第二医院2021年12月—2022年12月收治的160例血液透析患者作为研究对象,按照随机数字表法分为对照组(n=80,予以...目的探讨Donabedian质量理论干预模式对行血管通路术的血液透析患者血管通路并发症发生率的影响。方法选取福建医科大学附属第二医院2021年12月—2022年12月收治的160例血液透析患者作为研究对象,按照随机数字表法分为对照组(n=80,予以常规护理干预)与观察组(n=80,在对照组的基础上予以Donabedian质量理论干预)。比较2组血液透析患者的日常生活能力评定量表(activity of daily living scale,ADL)及血管通路并发症的发生率。结果在对行血管通路术的血液透析患者进行质量理论干预后,观察组ADL评分[(40.48±3.97)分]明显低于对照组[(44.07±2.51)分](P<0.05);观察组血管通路并发症的总发生率(2.50%)明显低于对照组(11.25%),差异有统计学意义(P<0.05)。结论行血管通路术的血液透析患者使用Donabedian质量理论的干预模式可改善日常生活能力,减少血管通路并发症。展开更多
基金Supported by Natural Science Foundation of Qingdao University
文摘I type system model of CCCAM(Contention-Collision Cancellation Access Mode) is studied through mathematical modelling and simulation. There are two innovations: (1) in the process of mathematical modelling, the instance of 'serving customers unsuccessfully' is taken into account; (2) the time at which customers depart after having been served successfully are chosen to be the embedded point, thereby 'free period' is introduced reasonably. So the mathematical modelling and analysis result in this paper are significant for application of wire star LAN and wireless star LAN.
文摘Hanoi’s rapid urbanization has led to a surge in private vehicle ownership, particularly motorcycles, amidst inadequate public transportation infrastructure. Despite government efforts, many still prefer motorized transport, citing mobility and safety concerns, exacerbated by insufficient pedestrian infrastructure. This study examines the motivations behind this reliance on motorized vehicles, particularly motorcycles, in Hanoi. Findings reveal safety and convenience as primary factors driving motorized transport use, especially for accessing bus stations. Economic incentives could promote non-motorized travel and public transport adoption. Policy implications highlight the importance of addressing economic factors and improving access infrastructure to manage motorized vehicle reliance and foster sustainable urban mobility in Hanoi.
文摘目的探讨Donabedian质量理论干预模式对行血管通路术的血液透析患者血管通路并发症发生率的影响。方法选取福建医科大学附属第二医院2021年12月—2022年12月收治的160例血液透析患者作为研究对象,按照随机数字表法分为对照组(n=80,予以常规护理干预)与观察组(n=80,在对照组的基础上予以Donabedian质量理论干预)。比较2组血液透析患者的日常生活能力评定量表(activity of daily living scale,ADL)及血管通路并发症的发生率。结果在对行血管通路术的血液透析患者进行质量理论干预后,观察组ADL评分[(40.48±3.97)分]明显低于对照组[(44.07±2.51)分](P<0.05);观察组血管通路并发症的总发生率(2.50%)明显低于对照组(11.25%),差异有统计学意义(P<0.05)。结论行血管通路术的血液透析患者使用Donabedian质量理论的干预模式可改善日常生活能力,减少血管通路并发症。
