Judul: Management and Mitigation of PGA Surgical Suture Distribution Risk in Distribution Company
Abstrak: Jumlah pembedahan yang dilakukan di seluruh dunia meningkat dari 140 juta pasien pada tahun 2017 kemudian bertambah 8 juta pasien pada tahun 2019. Diperkirakan setiap tahun terdapat 165 juta prosedur bedah yang dilakukan secara global. Jumlah tindakan pembedahan di Indonesia juga meningkat, mencapai 1,2 juta pasien pada periode 2019-2020. Hal tersebut mengakibatkan permintaan benang bedah semakin meningkat. Sampai tahun 2023, produk alat kesehatan impor di Indonesia mencapai 70%. PT. XYZ adalah salah satu perusahaan distributor alat kesehatan yang bekerjasama dengan pemasok dari Wilayah Eropa. Polyglycolic Acid, Polyglecaprone, dan Polydioxanone merupakan pilihan bahan benang bedah yang dapat diserap dan secara luas digunakan pada tindakan pembedahan umum, saluran cerna, bedah plastik, ginekologi, ortopedi, dan penutupan kulit. Polyglycolic Acid merupakan salah satu benang bedah absorbable dengan penjualan tertinggi di antara semua benang bedah yang tersedia di PT. XYZ. Permintaan benang bedah PGA semakin meningkat seiring dengan peningkatan tindakan pembedahan yang tercatat. Perusahaan sering mengalami permasalahan dalam pengadaan persediaan produk karena bergantung pada satu supplier sehingga mempengaruhi kinerja rantai pasok dan menimbulkan berbagai risiko dalam proses bisnisnya. Penelitian ini akan memfokuskan pada analisis kinerja rantai pasok dan mitigasi risiko produk benang bedah PGA pada PT. XYZ. Metode yang digunakan yaitu Supply Chain Operation Reference (SCOR), House of Risk (HOR), dan fishbone. Hasil uji SCOR menunjukkan bahwa kinerja rantai pasok PT. XYZ pada atribut eksternal, semua indikator tergolong superior, sedangkan untuk atribut internal terkategori parity. Berdasarkan analisis HOR dan metode fishbone, didapatkan 3 prioritas sumber risiko yang harus dilakukan mitigasi yaitu kesalahan dari supplier, jumlah permintaan fluktuatif, dan lahan penyimpanan terbatas. Sedangkan mitigasi yang harus dilakukan adalah mendorong supplier membuat pabrik di Indonesia, memberikan forecasting pesanan per periode kuartal, dan mengadakan pertemuan rutin untuk evaluasi dan pembuatan strategi., The number of surgeries increased from 140 million patients in 2017 to an additional 8 million patients in 2019 worldwide. It is estimated that 165 million surgical procedures are performed globally every year. The number of surgical procedures in Indonesia is also increasing, reaching 1.2 million patients in the 2019-2020 period. The condition affecting the increasing demand for surgical suture. Until 2023, imported medical device products in Indonesia reached 70%. PT XYZ is one of the medical device distributors, that collaborates with suppliers from the European region. Polyglycolic Acid, Polyglecaprone, and Polydioxanone are a selection of absorbable surgical suture materials that are widely used in general surgery, gastrointestinal tract, plastic surgery, gynecology, orthopedic, and skin closure. Polyglycolic Acid is one of the highest selling absorbable surgical suture among all surgical suture available at PT XYZ. The demand for PGA surgical suture is increasing along with the increase in recorded surgeries. The company faces some problems in procuring product inventory because it depends on only one supplier, which affects supply chain performance and creates various risks in its business processes. This research will focus on analyzing the supply chain performance and risk mitigation of PGA surgical suture products at PT XYZ. The methods used are Supply Chain Operation Reference (SCOR), House of Risk (HOR), and fishbone. The SCOR test result shows that the supply chain performance of PT XYZ on
Keyword: HOR, kinerja rantai pasok, risiko, SCOR, Risk, mitigasi risiko, risk mitigation, Supply Chain Performance

Judul: Analisis Kinerja dan Risiko Rantai Pasok Susu Formula (Studi Kasus: PT Tigaraksa Satria)
Abstrak: Industri produk olahan susu memiliki potensi besar untuk dikembangkan di Indonesia. Namun demikian, baik industri pengolahan maupun distributor masih menghadapi berbagai permasalahan terkait kinerja dan risiko. Penelitian ini bertujuan untuk menganalisis kinerja, risiko, serta menentukan strategi peningkatan kinerja rantai pasok susu formula di PT Tigaraksa Satria. Penelitian ini menggunakan metode supply chain operation reference (SCOR) yang diintegrasi dengan analytical hierarchy process (AHP) untuk analisis kinerja dan metode house of risk (HOR) untuk analisis risiko. Strategi peningkatan kinerja rantai pasok dirumuskan menggunakan metode analytical networking process (ANP) berdasarkan analisis benefit, opportunity, cost, dan risk (BOCR). Hasil pengukuran kinerja menunjukkan bahwa kinerja PT Tigaraksa Satria sudah sangat baik (97,61%). Hasil analisis risiko menunjukkan terdapat 13 risk agent pada tingkat prinsipal dan 18 risk agent pada tingkat distributor. Delapan risk agent ditetapkan sebagai prioritas untuk diberikan aksi mitigasi. Terdapat 8 aksi mitigasi yang dapat diterapkan pada tingkat prinsipal dan 11 aksi pada tingkat distributor. Aksi mitigasi diurutkan berdasarkan tingkat efektivitas dan kesulitan penerapannya. Berdasarkan penilaian pakar, peningkatan koordinasi dan kerja sama antar stakeholder merupakan strategi yang memiliki pengaruh besar terhadap peningkatan kinerja rantai pasok susu formula., The dairy product industry has excellent potential to be developed in Indonesia. However, both the processing industry and distributors still face various problems related to performance and risk. This study aims to analyze the performance, risks and determine strategies for improving the performance of the infant milk formula supply chain at PT Tigaraksa Satria. This study uses the supply chain operation reference (SCOR), which is integrated with the analytical hierarchy process (AHP) for performance analysis and the house of risk (HOR) method for risk analysis. The performance improvement strategy of a supply chain is formulated using the analytical networking process (ANP) based on benefit, opportunity, cost, and risk (BOCR) analysis. The performance measurement results show that the performance of PT Tigaraksa Satria is excellent (97.61%). The results of the risk analysis identified 13 risk agents at the producer level and 18 risk agents at the distributor level. Eight risk agents are set as priorities to be given mitigation actions. Eight mitigations at the producer and 11 acts at the distributor level were proposed to reduce the risk. Mitigation actions are ranked according to the effectiveness and difficulty of implementation. Based on expert judgment, improving coordination and cooperation between stakeholders is a strategy that significantly influences the performance of the infant milk formula supply chain.
Keyword: ANP, BOCR, HOR, Infant Milk Formula, SCOR-AHP

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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