Infected people are isolated to minimize the spread of pandemic diseases. Therefore, the factors related to self-isolation (SI) should not be neglected, and it is important to investigate the factors leading the infected (or possibly infected) people to choose to self-isolate. In this paper, we tried to show that the theory of planned behavior provides a useful conceptual framework for SI when facing a pandemic risk, and a regression method with Chinese provincial (Guangdong Province) data was applied to investigate how attitude (ATT), subjective norms (SN), and perceived behavioral control (PBC) influence SI when facing a pandemic emergency. The results and the robustness tests confirm that ATT, SN, and PBC have a significant positive influence on SI when facing a pandemic emergency. ATT plays the most important role, followed by SN and then PBC. Based on the factors of SI, we found, through theoretical and empirical analyses, at least three important aspects that local governments need to consider to encourage citizens to self-isolate when facing a pandemic.

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According to the research on pedestrian collision avoidance in Xizhimen subway station of Beijing, This paper gives some optimizations about existing pedestrian collision avoidance model in subway station aisle. Through analysis and observation of survey data, find that the psychological repulsion force intensity is not a fixed vlaue, but varies with the distance between pedestrians, and give its fitting formula. Besides, this paper changes the phenomenon that one pedestrian would walk through another pedestrian when the longitudinal distance of two people is zero. It achieves a reasonable collison avoidance by designning the deflection angle. Establishing the simulation software of optimized model based on MATLAB, the process verified the validity of the optimized social force simulation model.

Single-carrier frequency division multiple access (SC-FDMA) has become a popular alternative to orthogonal frequency division multiple access (OFDM) in multi-user communication on LTE uplink systems. This is primarily due to the low peak-toaverage power ratio (PAPR) of SC-FDMA compared to that of OFDM. Long-term evolution (LTE) uses SC-FDMA on the uplink to exploit this PAPR advantage to iii