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基于时空二向度定型机制的静态网络检测算法研究
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作者 韩淑芹 李增祥 《井冈山大学学报(自然科学版)》 2019年第3期50-55,共6页
为了解决当前静态网络检测机制中存在链路抖动检出频率低,数据传输性能不高,且难以实现信道噪声擦除的不足,提出了一种基于时空二向度定型机制的静态网络检测算法。首先,综合考虑静态网络接收信号强度(Received Signal Strength Indicat... 为了解决当前静态网络检测机制中存在链路抖动检出频率低,数据传输性能不高,且难以实现信道噪声擦除的不足,提出了一种基于时空二向度定型机制的静态网络检测算法。首先,综合考虑静态网络接收信号强度(Received Signal Strength Indication,RSSI)、链路质量指针(Link Quality Indicator,LQI)、信噪比(SIGNAL-NOISE RATIO,SNR)的特点,并结合静态网络节点的拓扑特性,通过移序方法,构建了基于频率漂移包络擦除方案的超参数捕捉方法,有效降低信道噪声对网络抖动性能的影响;随后,考虑到当前静态网络节点的数据流量分布不均匀的特性,基于链路相干协方差的方法,实现链路抖动二向度的误差消除,显著提升了网络抗噪性能,强化了数据传输过程中的误差控制。仿真实验表明,与高斯白噪声信道包络检测机制(Envelope Monitoring Mechanism in Gauss White Noise Channel,E2W-GWNC机制)、拉普拉斯信源联合抖动检测机制(Laplasse Source JointJitter Detection Mechanism,LS-2JD机制)相比,所提算法具有更高的网络数据传输能力,且有更好的链路抖动问题检出效果。 展开更多
关键词 静态网络检测 时空二向度 超参数捕捉 链路质量指针 移序方式 误差控制
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Use of mobile-stroke risk scale and lifestyle guidance promote healthy lifestyles and decrease stroke risk factors
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作者 Kelana Kusuma Dharma Parellangi 《International Journal of Nursing Sciences》 CSCD 2020年第4期401-407,I0003,共8页
Objective:The purpose of this study was to determine the effectiveness of Mobile-Stroke Risk Scale and Life Style Guidance(M-SRSguide)in promoting a healthy lifestyle and reducing stroke risk factors in atrisk persons... Objective:The purpose of this study was to determine the effectiveness of Mobile-Stroke Risk Scale and Life Style Guidance(M-SRSguide)in promoting a healthy lifestyle and reducing stroke risk factors in atrisk persons.Methods:This research was an clinical trial with a pre-test and post-test control group design.The accessible population is persons at risk of stroke in the community(West and East Kalimantan Province,Indonesia).Thirty-two participants in the intervention group and 32 participants in the control group participated in this study.The sampling method was systematic random sampling.We allocate the sample into the intervention and control groups using a randomized block design.The intervention group used the M-SRSguide.The control group used manual book for a self-assessment of stroke risk.The measurement of a healthy lifestyle and the stroke risk factors was performed before and six months after the intervention.Results:There are no significant differences in healthy lifestyle and stroke risk factors between the two groups after the intervention(P>0.05).Analysis of healthy lifestyle behavior assessment items in the intervention group showed an increase in healthy diets,activity patterns,and stress control after the use of the M-SRSguide(P<0.01).Conclusion:The use of M-SRSguide is effective in promoting a healthy lifestyle. 展开更多
关键词 Health promotion Life style Mobile applications Risk factors STROKE
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