Judul: Analysis and Mitigation of Durian Monthong Supply Chain Risks in Palu at XYZ Co
Abstrak: Durian monthong merupakan buah musiman yang memiliki karakteristik dagingnya yang tebal, berwarna kuning terang, sangat manis, tekstur nya halus dan aromanya tajam. Salah satu penghasil durian monthong terbesar di Indonesia adalah Kota Palu, Sulawesi Tengah. Rantai pasok suatu perusahaan harus optimal karena memiliki peran penting dalam kesuksesan suatu perusahaan yang ditandai dengan beberapa karakteristik utama seperti responsif terhadap permintaan, biaya rendah, kolaborasi yang baik antar aktor rantai pasok, dan manajemen risiko yang efektif. Analisis ini dilakukan untuk mengetahui risiko yang terjadi atau memungkinkan terjadi sehingga perusahaan dapat melakukan aksi mitigasi dalam rangka mengurangi risiko tersebut. Penelitian ini dilakukan dengan menganalisis kondisi situasional rantai pasok menggunakan pendekatan Food Supply Chain Management (FSCM), mengidentifikasi kejadian risiko dan sumber risiko serta menentukan aksi mitigasinya menggunakan metode House of Risk (HOR) pada tiga titik yaitu supplier, packing house, dan distributor. Dari analisis tersebut didapatkan pada titik supplier, packing house, dan distributor memiliki sebanyak 7, 8, 7 prioritas sumber risiko dan 8, 8, 9 prioritas mitigasi risiko. Dengan teridentifikasinya prioritas sumber risiko diharapkan mampu membantu perusahaan sebagai salah satu alat penunjang keputusan untuk melakukan mitigasi risiko sesuai yang disarankan., Monthong durian is a seasonal fruit that is characterized by thick flesh, bright yellow color, very sweet, smooth texture and strong aroma. One of the largest producers of Monthong durian in Indonesia is Palu City, Central Sulawesi The supply chain of a company must be optimized, as it plays a crucial role in the success of a business, marked by several key characteristics such as responsiveness to demand, low costs, good collaboration among supply chain actors, and effective risk management. This analysis aims to identify current or potential risks so that companies can take mitigation actions to reduce these risks. This research was carried out by analyzing the situational conditions of the supply chain using the Food Supply Chain Management (FSCM) approach, identifying risk events and sources of risk and determining mitigation actions using the House of Risk (HOR) method at three points, namely suppliers, packing houses and distributors. The analysis results indicate that at the supplier, packing house, and distributor, there are 7, 8, and 7 priority risk sources and 8, 8, and 9 priority risk mitigations. By identifying priority sources of risk, it is anticipated that this will assist companies by serving as a decision support tool for implementing recommended risk mitigation strategies.
Keyword: rantai pasok, risiko, durian, HOR

Judul: Analisis Kinerja Rantai Pasok Durian Monthong Palu di PT XYZ
Abstrak: Durian monthong palu has captivated durian enthusiasts worldwide due to its potential and competitive business, especially for XYZ Co. as one of the distributor company in Indonesia. Despite its appeal, the special characteristics of durian monthong palu pose challenges for export markets. This study examines the supply chain of durian monthong palu and its performance score in XYZ Co. A combination of the supply chain operations reference (SCOR) model and analytical hierarchy process (AHP) method are employed in the analysis of the supply chain performance. The analysis concluded nine performance metrics along with the weight values indicating its importance level in determining the supply chain performance, and the performance scores of 89.23% or categorized as good for the packing house and 53.86% or categorized as average for XYZ Co. as the distributor. These results indicate areas for improvement in the supply chain, enabling datadriven decisions for success in the competitive durian export market., Durian monthong palu telah memikat para pecinta durian di seluruh dunia karena potensi dan peluang bisnisnya yang besar, terutama bagi PT XYZ sebagai salah satu perusahaan distributor di Indonesia. Namun, karakteristik khusus durian monthong palu menjadi tantangan tersendiri untuk pasar ekspor. Penelitian ini bertujuan untuk menganalisis rantai pasok durian monthong palu dan kinerja perusahaan XYZ Co. di dalamnya. Model supply chain operations reference (SCOR) dan metode analytical hierarchy process (AHP) digunakan untuk menganalisis kinerja rantai pasok. Analisis ini mengidentifikasi sembilan metrik kinerja beserta nilai bobotnya yang menunjukkan tingkat kepentingan tiap metrik dalam menentukan kinerja rantai pasok. Analisis pengukuran kinerja rantai pasok menunjukkan nilai kinerja sebesar 89,23% atau dapat dikategorikan sebagai baik untuk packing house dan 53,86% atau dapat dikategorikan sebagai rata-rata untuk PT XYZ sebagai distributor. Hasil ini menunjukkan adanya bagian yang perlu ditingkatkan dalam rantai pasok. Dengan demikian, PT XYZ dapat mengambil keputusan berbasis data untuk mencapai kesuksesan di pasar ekspor durian yang kompetitif.
Keyword: Durian monthong palu, analytical hierarchy process, supply chain operations reference, supply chain performance, kinerja rantai pasok

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.
Keyword: