In this manuscript, the self-crimping process of multi-chain polystyrene into carbon nanotube was investigated by molecular dynamics simulation. The simulation displays that the multi-chain polystyrene arranged in parallel can self-crimp into carbon nanotube and form a helix configuration. The formation mechanism illustrates that both the van der Waals potential well and the π–π stacking interaction between polystyrene and carbon nanotube play a major role in the self-assemble process. Furthermore, some factors such as the chain number of polystyrene, the length of polymer, the diameter of carbon nanotube and the simulation temperature are also investigated. Moreover, different replaced polymers are exhibited, too. This theory research can provide valuable theoretical support for design and manufacture hybrid structures in the fields of advanced composite materials and functional devices.

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The imaging technology of digital microscopic image plane holography (DMIPH) is studied in this paper. The point spread function expression and the recording conditions of DMIPH system are derived. The quadratic phase factor which introduced by the microscope objective lens can be eliminated through choosing the proper position of the reference point source when the hologram is recorded by spherical reference waves. By using plane waves and spherical waves as reference waves respectively two image plane holographic recording systems are built. Using a USAF test target as microscopic object, the recorded digital holograms are reconstructed by angular spectrum algorithm. The experimental results show that in the case of spherical reference waves if the distance from the equivalent of lighting point source to CCD plane is equal to the distance between the reference point source and CCD plane the quadratic phase distortion introduced by the microscope objective lens can be removed and that DMIPH is superior to common digital holographic microscopy.

In the context of continuous innovation in global business formats, our country's commercial architectural design is always exploring and moving forward at the same time. In this paper, large commercial buildings in Guangzhou and Hong Kong will be selected as research Subjects. The psychological and behavioral patterns of shoppers in the public spaces of these commercial buildings will also be analyzed and studied, which mainly through reading literature and going to the site, and also including questionnaire method. In this process, the psychological needs of shoppers for public space in large commercial buildings will be investigated, along with the behavioral effects of different modes of public space in large commercial buildings on shoppers. To sum up, it is to study the interaction between the psychology and behavior of shoppers and the public space of commercial buildings. Through the conclusion, it is found that the environment and people are always in a complementary relationship, and human psychology and behavior should be the starting point and destination of environmental design. It is hoped that the environment design and human psychology and behavior are studied as a more direct relationship, so as to bring some inspiration to the design of public space in large commercial buildings.