Conflicts between Governance actors are rife in the era of democracy as it is today. The purpose of this study is to analyze the problems of land conflicts faced by the community against the Bandung City Government which is in a joint coalition with PT Sartonia Agung. Those two parties had a dispute over land rights in RW 11 Tamansari to control the basis of rights for housing and the construction of Row House. The struggle of each party in the struggle for land in RW 11 Tamansari was carried out through an advocacy process with both formal and informal approaches. The Advocacy Coalition Framework in this study was used as a knife for analyzing the phenomena that occurred. The research methods used in this study were qualitative research by standing on the interpretative paradigm. The data were collected by conducting observations, in-depth interviews, and documentation relating to the outline of the research. The findings obtained from this study indicated that there was a formation of strong coalition domination by the government through aggressive and repressive behavior that raised a conflict of interest in the row house construction policy in Tamansari Subdistrict, Bandung City, which was rejected by the Coalition of the Tamansari community that was formed. The series of advocacy carried out by the Tamansari community coalition had not produced results in favor of the coalition that urged a change in the policy.

JIS SUP 9 steel is one of the materials commonly used for suspension components in motorized vehicles with medium carbon steel base material. It must have good hardness and toughness so that failure does not occur during operational. This research was conducted to increase the hardness of JIS SUP 9 Steel through a heat treatment and various quenching media. The heat treatment was carried out with 830-880ºC temperature with a holding time of 7 minutes then cooled using water and oil. After treatment, tempering was carried out with a holding time of 7 minutes and then cooled in room temperature. Hardness testing was carried out using Microhardness Vickers and then the microstructure was observed using an Olympus Metallurgical Microscope. The results show that heat treatment followed by rapid cooling increases the initial hardness of JIS SUP 9 (229 VHN) steel. The decrease in hardness after the tempering process will be higher with increasing tempering temperature. The results of the microstructure of the sample without heat treatment showed pearlite and ferrite phases. After heat treatment, tempered martensite, residual austenite and carbide phases appear. It can be concluded that changes in the microstructure affect the hardness of JIS SUP 9 steel.