分类： 工程与技术科学 >> 工程与技术科学其他学科 提交时间： 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要： Aiming at the current situation that many elderly people with sudden illnesses have lost their lives due to missing the golden time of first aid in the natural landscape tourism environment, in order to solve the waste of medical resources in the rescue station in the natural landscape tourism environment, the relief terrain is complex, Help is not timely and other pain points. Taking the Leshan Giant Buddha Scenic Spot as an example, through the methods of user portraits and questionnaires, we can deeply explore its pain points and internal needs, and provide the basis for the current situation of the elderly in sudden diseases during tourism. Comprehensive analysis is made from the perspectives of the elderly, rescuers, scenic spots, and first-aid equipment, and a public emergency strategy based on the natural landscape tourism environment is constructed. The medical resources in the scenic spot increase the rescue opportunities for patients, and strive for rescue time for the elderly who have sudden illnesses. Improve the first aid knowledge reserve and self-rescue ability of the general population, enhance the sense of social responsibility and security of the whole people, and provide more reference for the improvement of the Internet plus medical system.
分类： 物理学 >> 凝聚态:电子结构、电、磁和光学性质 提交时间： 2016-06-13
摘要： Take a one-dimensional tight binding chain and put a particle in some Bloch state, then quench it by suddenly changing the potential of some site. In its time evolution, the probability density of the wave function at an arbitrary site constantly jumps between plateaus. This phenomenon in the real space complements the previous finding in the momentum space (Zhang and Yang, arXiv:1601.03569) that the survival probability of the particle in the initial Bloch state shows cusps periodically. Thus emerges a comprehensive picture of the time evolution of the quenched Bloch state. Underlying the cusps and jumps is the exactly solvable, nonanalytic dynamics of a fictitious model.
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