PRIORITAS PENGEMBANGAN OBJEK WISATA DI KOTA PADANG, PROVINSI SUMATERA BARAT

Indonesia is one country that has the potential for development of tourist beach. The number of visits to both domestic and foreign travel has increased every year. This study aims to determine the priority of tourism development in the coastal city of Padang. Priority tourism development is determined by the suitability of land and tourism development potential index. Suitability of land for tourist beach area using eight indicators, namely: water transparency, type of beach, shore depth, substrate, current speed, live coral cover, hazards, and accessibility. Index development potential attraction beach using five criteria: community acceptance, facilities and supporting infrastructure, cultural performances, industry support, and government support. The results showed attraction Muaro peevish beach is the main priority areas of tourism development in the coastal city of Padang, while the beach a tourist attraction Muaro Anai is the lowest priority.

Transport and Field Emission Properties of MoS2 Bilayers

We report the electrical characterization and the field emission properties of CVD-grown MoS2 bilayers deposited on SiO2/Si substrate. Current-voltage characteristics are measured in the back-gate transistor configuration, with Ti contacts patterned by electron beam lithography. We confirm the n-type character of as-grown MoS2 and we report normally-on field effect transistors. Local characterization of field emission is performed inside a scanning electron microscope chamber with piezo-controlled tungsten tips working as the anode and the cathode. We demonstrate that an electric field of ~200 V/μm is able to extract current from the flat part of MoS2 bilayers, which therefore can be conveniently exploited for field emission applications even in low field-enhancement configurations. We show that a Fowler-Nordheim model, modified to account for electron confinement in 2D materials, fully describes the emission process.