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TIG torch welding technique is a conventional melting technique for the cladding of metallic materials. Duplex stainless steels (DSS) show decrease in performance under aggressive environment which may lead to unanticipated failure due to poor surface properties. In this research, surface modification is done by using TIG torch method where silicon carbide (SiC) particles are fused into DSS substrate in order to form a new intermetallic compound at the surface. The effect of particle size, feed rate of SiC preplacement, energy input and shielding gas flow rate on surface topography, microstructure, microstructure and hardness are investigated. Deepest melt pool (1.237 mm) is produced via TIG torch with highest energy input of 1080 J/mm. Observations of surface topography shows rippling marks which confirms that re-solidification process has taken place. Melt microstructure consist of dendritic and globular carbides precipitate as well as partially melted silicon carbides (SiC) particles. Micro hardness recorded at value ranging from 316 HV0.5 to 1277 HV0.5 which shows increment from base hardness of 260 HV 0.5kgf . The analyzed result showed that incorporation of silicon carbide particles via TIG Torch method increase the hardness of DSS.

Several strategies in reducing external heat gain sometimes have an impact on limited access to daylight in buildings. Therefore, an integrated study is needed between thermal and daylight performance of the building. This research focuses on building modeling and simulation on one of the buildings at UIN Walisongo Semarang to see these two parameters based on Standard Nasional Indonesia. The thermal performance through OTTV value is simulated using EnergyPlus, while the building daylight is simulated using Dialux. The existing condition showed that the thermal performance is not fully integrated with the building natural lighting. Further simulation is needed through the building envelope engineering. The results showed that the entire room has met the standard of natural lighting while maintaining the OTTV value according to the standard. This condition is the optimal point which represents the integration between thermal and daylight performance of the building.

This research aims to take the values of social fiqh as the spirit of Pesantren College. This research employed literature research. Data sources were literature and various scientific works. This research develops social fiqh theory in education. Then, researchers used the Janice McDrury method with the collaborative group analysis of data theory to analyze the data. This process started from reading data, marking and studying keywords and themes, and coding to find the model searched for in the research. The research results show a void in the concept of Pesantren College, a new nomenclature in Higher Education under the Ministry of Religion. Furthermore, the researchers find that mainstream education ideology fails to provide a spirit for Islamic education, especially at Pesantren College. Considering the task of the caliph: worship (ibadatullah) and caring for life and earth (imaratul ardh), then Education should accommodate the needs of humans in carrying out these tasks. The manifestation of the caliphate task realizes human benefit for human life and universe goodness. Penelitian ini bertujuan mengambil nilai-nilai fiqh sosial sebagai spirit Perguruan Tinggi Pesantren. Penelitian ini merupakan penelitian kepustakaan dengan menjadikan literatur dan berbagai buku ilmiah sebagai sumber data utama. Penelitian pengembangan ini akan mengembangkan teori fiqh sosial dalam bidang pendidikan. Untuk menganalisis data peneliti menggunakan Metode Janice McDrury  dengan teori Collaborative Group Analysis of Data. Proses ini berawal dari membaca data, menandai dan mempelajari kata kunci dan tema-tema serta koding untuk menemukan model yang dicari dalam penelitian. Dari hasil penelitian terhadap literatur yang ada, terdapat kekosongan konsep Perguruan Tinggi Pesantren yang merupakan nomenklatur baru dalam Pendidikan Tinggi di bawah Kementrian Agama. Lebih jauh peneliti mendapati adanya kegagalan ideologi Pendidikan mainstream dalam memberikan spirit bagi Pendidikan Islam, khususnya Perguruan Tinggi Pesantren. Mengingat adanya tugas kekhilafahan yang diemban manusia dengan dua fungsinya; ibadatullah dan imaratul ardh, maka pendidikan seharusnya mewadahi kebutuhan manusia dalam menjalankan tugas tersebut. Karena wujud dari tugas kekhilafahan adalah terealisasinya kemaslahatan bagi kehidupan manusia dan alam semesta.