Judul: The Decisions of the Jabodetabek Community to Visit DKI Jakarta Halal Tourism Destinations in the New Normal Era
Abstrak: DKI Jakarta merupakan salah satu provinsi yang memiliki potensi pengembangan wisata halal yang cukup besar. Akan tetapi, adanya pandemi Covid-19 membuat jumlah wisatawan menurun sebesar 88,08 persen. Selain itu, pandemi Covid-19 juga menyebabkan adanya perubahan perilaku wisatawan dalam berwisata. Oleh karena itu, tujuan dari penelitian ini adalah mengidentifikasi karakteristik pengunjung wisata halal dan menganalisis faktor-faktor yang memengaruhi keputusan mengunjungi destinasi wisata halal DKI Jakarta dengan menggunakan data primer dari 100 responden dan menggunakan analisis deskriptif dan analisis Partial Linear Square-Structural Equation Modelling (SEM-PLS). Hasil penelitian menunjukkan bahwa faktor sosial, faktor psikologis, religiusitas, dan protokol kesehatan berpengaruh positif dan signifikan terhadap keputusan berkunjung. Variabel pengetahuan halal dan fasilitas wisata halal berpengaruh positif dan tidak signifikan terhadap keputusan berkunjung., DKI Jakarta is one of the province that has a large potential for developing muslim-friendly tourism. However, due to the Covid-19 pandemic, the number of tourists decreased by 88,08 percent. In addition, the Covid-19 pandemic has also caused changes in tourist behavior when traveling. Therefore, the purpose of this study is to identify the characteristics of muslim-friendly visitors and analyze the factors that influence the decision to visit muslim-friendly DKI Jakarta using primary data from 100 respondents and descriptive analysis and Partial Linear Square-Structural Equation Modeling (SEM-PLS) analysis. The results of the study found that social factors, psychological factors, religiosity, and protocols had a positive and significant effect on visiting decisions. halal knowledge and muslim- friendly tourism facilities have a positive and insignificant effect on visiting decisions.
Keyword: DKI Jakarta, halal tourism, SEM-PLS, visit decision

Judul: Strategi Pemulihan Industri Pariwisata Halal di DKI Jakarta
Abstrak: Pandemi Covid-19 menjadi guncangan besar bagi perekonomian dunia dan berdampak ke semua industri termasuk industri pariwisata halal. Penelitian ini bertujuan guna mengidentifikasi kekuatan, kelemahan, peluang, ancaman, serta merumuskankan strategi dalam pemulihan industri pariwisata halal di DKI Jakarta. Metode yang digunakan adalah Analytic Network Process berstruktur jaringan SWOT. Responden dalam penelitian ini berjumlah lima orang pakar meliputi akademisi, regulator, dan praktisi. Temuan penelitian menunjukkan aspek kekuatan adalah aspek yang paling berpengaruh dalam pemulihan industri pariwisata halal di DKI Jakarta. Hasil penelitian menunjukkan bahwa aspek kekuatan yang paling berpengaruh adalah DKI Jakarta memiliki keunggulan aspek infrastruktur, aksesibilitas, dan amenitas yang sudah mapan. Aspek kelemahan yang paling berpengaruh adalah masih terjadi mispersepsi pemahaman tentang pariwisata halal di masyarakat DKI Jakarta. Aspek peluang dan ancaman yang paling berpengaruh terdiri dari konsep pariwisata halal cocok diterapkan di Era new normal dan tidak ada pedoman guna merencanakan, mengelola, serta mengurangi dampak wabah/bencana di industri pariwisata. Adapun prioritas strategi pemulihan industri pariwisata halal di DKI Jakarta adalah penguatan branding pariwisata halal., The Covid-19 pandemic is a major shock to the world economy and has an impact on all industries, including the halal tourism industry. This study aims to determine the strengths, weaknesses, opportunities, threats, and formulate strategies in the recovery of the halal tourism industry in DKI Jakarta. The method used is the Analytic Network Process with a SWOT network structure. Respondents in this study collected five academic experts, regulators, and practitioners. The research findings show that the aspect of strength is the most influential aspect in the recovery of the halal tourism industry in DKI Jakarta. The results showed that the aspect of strength that had the most influence was that DKI Jakarta had the advantages of already established infrastructure, accessibility, and amenity aspects. The most influential aspect of weakness is that there is still a misperception of understanding about halal tourism in the people of DKI Jakarta. The most influential aspects of opportunities and threats consist of the concept of halal tourism which is suitable to be applied in the new normal era and there are no guidelines for planning, managing, and reducing the impact of epidemics/disasters in the tourism industry. The priority strategy for the recovery of the halal tourism industry in DKI Jakarta is to strengthen the branding of halal tourism.
Keyword: ANP, Covid-19, Halal Tourism, Strategy, SWOT

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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