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Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach, this article investigates 85 articles on economic development collaboration in public administration research, published between 1990 and 2022. Economic development collaboration is the process of interaction among multiple economic development organizations in order to tackle economic development problems that cannot be resolved by single organizations. This systematic review demonstrates seven key aspects of economic development collaboration studies: (1) research questions, (2) collaboration types, (3) empirical designs and methods, (4) antecedents of economic development collaboration, (5) mechanisms of economic collaboration, (6) outcomes of economic development collaboration, and (7) research limitations. Based on these results, this article identifies strengths and weaknesses in economic development collaboration research and concludes with a future research agenda.

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Using X-ray or γ-ray to inspect vehicles is an effective way to find threats such as stowaways and contrabands hidden inside. Popularly used vehicle inspection devices at present require passengers to get off the vehicle, and then the vehicle is dragged by a conveyor to move through the inspection device. One disadvantage of such devices is that inspecting efficiency is very low. In this paper, a drive-through mode passenger vehicle inspecting system is introduced, with which passengers in a vehicle need not get off and efficiency is greatly improved. Patented high-pressure gas ionization chamber is used as radiation detector to collect the low radiation signal. A deep-learning study algorithm is adopted to realize image recognition to find specified object. The system can greatly increase security check efficiency with good image quality.