Judul: Development Strategy of Adaptive Ecotourism Based on the Acceptance of Many Parties (Case study: Gunung Gede-Pangrango National Park)
Abstrak: Pandemi COVID-19 memberikan dampak pada jumlah kunjungan wisatawan dan penerimaan negara bukan pajak (PNBP) di Taman Nasional Gunung Gede-Pangrango. Oleh karena itu, dibutuhkan pengembangan wisata yang dapat beradaptasi dengan kondisi terkini melalui konsep Adaptive Ecotourism. Penelitian ini bertujuan untuk merumuskan strategi pengembangan ekowisata adaptif di TNGGP pada masa (pasca) pandemi COVID-19. Data dikumpulkan melalui Focus Group Discussion dan wawancara kepada para pihak model pentahelix, serta kuesioner yang diajukan kepada potential demand. Data dianalisis menggunakan analisis deskriptif kualitatif, analisis korelasi, dan analisis kekuatan, kelemahan, peluang, dan ancaman (SWOT). Hasil penelitian menunjukkan bahwa keberterimaan para pihak memberikan respon positif, termasuk dukungan serta persepsi dan preferensi potential demand dapat dikatakan baik. Strategi pengembangan ekowisata adaptif dapat diterapkan melalui perjanjian kerja sama dengan pihak lain dalam penyediaan sarana prasarana, koordinasi dengan para pihak mengenai perencanaan dan promosi, penyiapan objek wisata di kawasan sebagai objek visit/ekstensi dari objek atau destinasi lain.
Keyword: Acceptance of many parties, adaptive ecotourism, SWOT Analysis

Judul: Analysis of Stakeholder Acceptance of Development Adaptive Ecotourism (Case Study: Komodo National Park)
Abstrak: Perkembangannya pariwisata menghadapi masalah yang juga dihadapi sektor-sektor lain, yaitu pandemi Covid-19 salah satu stategi yang dapat diterapkan dalam mengahdapi masalah ini adalah adaptive ecotourism. Penelitian ini bertujuan mengidentifikasi keberterimaan serta peluang dan kendala dari Stakeholder terhadap pengembangan adaptive ecotourism serta merumuskan strategi pengembangan di Taman Nasional Komodo. Metode pengambikan data yang digunakan dalam penelitian ini adakah Focus Grup Discussion dan wawancara. Taman Nasional Komodo adalah kawasan yang sudah banyak dikenal oleh wisatawan domestik maupun mancanegara karena memiliki ciri khas yang khusus yaitu dan juga merupakan kawasan yang ditetapkan sebagai warisan dunia. Pengembangan pariwisata dengan konsep adaptive ecotourism memerlukan pembangunan yang dapat mendukung berjalannya kegiatan bekerja dan belajar di kawasan. Peraturan perundangan yang mengatur pembangunan dalam kawasan sudah diatur oleh kementerian sehingga kegiatan pemanfaatan kawasan dapat dilakukan secara optimal. kegiatan belajar diakawasan yang dapat dilakukan oleh sekolah yang berada disekitar kawasan sebelumnya belum banyak dilakukan hal ini perlu dikembangkan lagi agar kegaitan belajar dikawasan dapat dilaksanakan dengan. Dari analisis Swot yang telah dilakuakn strategi pengembangan yang perlu diperhatikan adalah strategi WT atau damage control dengan meminimalkan kelemahan dan menghindari ancaman., Tourism development faces problems that are also faced by other sectors, namely the Covid-19 pandemic, One of the strategies that can be applied in dealing with this problem is adaptive ecotourism.. This study aims to identify acceptability, opportunities, and constraints from stakeholders on the development of adaptive ecotourism and formulate development strategies in Komodo National Park. The data collection method used in this research is Focus Group Discussion and interviews. Komodo National Park is an area that is already widely known by domestic and foreign touristsuse havec the special characteristics of having rare endemic animals and is also an area designated as a world heritage. Tourism development with the concept of adaptive ecotourism requires development that can support work and study activities in the region. The ministry has regulated the laws and regulations governing development in the area so that area utilization activities can be carried out optimally. Learning activities in the area that can be carried out by schools around the area have not previously been done much, this needs to be developed again so that learningactivities in the area can be carried out. From the SWOT analysis, the development strategy that needs to be considered is the WT strategy or damage control by minimizing weaknesses and avoiding threats.
Keyword: acceptance, adaptive ecotourism, strategy

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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