The conductor of an order is the largest ideal of the ring of integers of a field which is contained in the order. In this paper we characterize conductors in quartic number fields whose norm is a power of unramified prime.

The purpose of this research is to study the construction safety measure for working at height. The safety measure for working at height in this research is developed by referring to the Ministerial Regulations prescribing the standard for administration and management of occupational safety health and environment for construction work 2008. The average of safety is low in five high rise construction projects in Bangkok metropolitan. So all parties involved in contractors need to focus on safety measure for working at height.

Development of learning materials teaching in courses architecture and computer learning are intendes to create learning materials technology by launching the HP Reveal prepared in the form of AR (Augmented Aug) reality. Develop a video lesson prepared with audio lectures.

This project was created to develop Railroad intersection projection mappingmedia and evaluating the satisfaction of the audiences understanding about Railroadintersection projection mapping media. evaluated by 100 sample size who answer thequestionnaires to collect data. The statistics in data that was used for analysis isfrequency percentage mean and standard deviation. This evaluating result is targetgroup are satisfied with The Railroad intersection projecting mapping media in high level. (𝑥̅= 4.56 SD = 0.59)