Judul: Strategi Pengembangan Usaha Divisi Tanaman PT PG Rajawali I Unit PG Krebet Baru
Abstrak: Adanya kendala dan persaingan yang ketat membuat Divisi Tanaman PT PG Rajawali I Unit PG Krebet Baru perlu merumuskan strategi pengembangan usaha yang tepat. Penelitian ini bertujuan mengidentifikasi faktor internal dan eksternal yang digunakan untuk merumuskan alternatif strategi dan mengetahui prioritas strategi tersebut. Alat analisis yang digunakan mencakup matriks IFE dan EFE, matriks IE, matriks SWOT, dan QSPM. Faktor internal yang menjadi kekuatan utama adalah kualitas SDM yang berkompeten dan berpengalaman, sedangkan kelemahan utamanya adalah durasi pencairan uang lelang gula yang lambat. Faktor eksternal yang menjadi peluang utama adalah permintaan gula yang tinggi, sedangkan ancaman utamanya adalah perubahan iklim dan peningkatan curah hujan. Skor Matriks IFE sebesar 3,111 dan EFE sebesar 3,244 dimana perusahaan berada pada kondisi internal dan kondisi eksternal yang baik. Matriks IE menunjukkan posisi perusahaan berada di kuadran satu yaitu tumbuh dan membangun dengan penggunaan strategi intensif dan integratif. Matriks SWOT menghasilkan enam alternatif strategi. Strategi yang menjadi prioritas utama berdasarkan QSPM adalah perluasan layanan kemitraan di luar Malang., The presence of obstacles and intense competition means that the PT PG Rajawali I Unit PG Krebet Baru Plant Division needs to formulate an appropriate development strategy. This research aims to identify the internal and external factors used to develop alternative strategies and to determine the priorities of these strategies. The analysis tools used include IFE and EFE matrices, IE matrix, SWOT matrix, and QSPM. The main internal strength is the competent and experienced human resources quality, while the main weakness is the slow disbursement duration of sugar auction money. The main external opportunity is the high demand for sugar, while the main threat is climate change and increased rainfall. The IFE matrix score is 3,111 and the EFE is 3,244 indicating that the company is in good internal and external condition. The IE matrix shows that the company's position is in quadrant one, which means grow and build using intensive and integrative strategies. The SWOT matrix generates six alternative strategies. The main priority strategy based on QSPM is expanding partnership services outside Malang.
Keyword: EFE, IFE, IE, SWOT, QSPM

Judul: Strategi Pengembangan Usaha Ramp UD Abdul Sapari di  Kecamatan Panai Hilir Kabupaten Labuhanbatu
Abstrak: Persaingan antar pengusaha ramp semakin ketat membuat UD Abdul Sapari perlu merumuskan strategi pengembangan usaha yang tepat. Usaha ramp merupakan tempat penimbunan sementara tandan buah segar hasil pembelian dari petani kemudian dijual ke pabrik kelapa sawit. Penelitian ini bertujuan mengidentifikasi faktor internal dan eksternal untuk merumuskan alternatif strategi dan mengetahui prioritas strategi. Metode penelitian menggunakan IFE, EFE, IE, SWOT, dan QSPM. Kekuatan utama adalah menyediakan jasa pengangkutan tandan buah segar didepan kebun, kelemahan utamanya adalah peralatan operasional harian yang masih sederhana. Peluang utama adalah Potensi lahan dan kondisi daerah yang menguntungkan, sedangkan ancaman utamanya adalah adanya kompetitor pabrik PKS dan pengusaha ramp. Skor matriks IFE sebesar 2,987 dan EFE sebesar 3,641 dimana perusahaan berada pada kondisi internal dan kondisi eksternal yang baik. Matriks IE menunjukkan posisi perusahaan berada di kuadran dua yaitu tumbuh dan membangun dengan penggunaan strategi intensif dan integratif. Matriks SWOT menghasilkan lima alternatif strategi. Strategi yang menjadi prioritas utama berdasarkan QSPM adalah meningkatkan kualitas layanan kepada pemasok., Competition among ramp entrepreneurs is getting tighter, so UD Abdul Sapari needs to formulate the right business development strategy. The ramp business is a temporary stockpile of fresh fruit bunches purchased from farmers and then sold to palm oil mills. This study aims to identify internal and external factors to formulate alternative strategies and determine strategy priorities. The research method used IFE, EFE, IE, SWOT, and QSPM. The main strength is providing fresh fruit bunch transportation services in front of the plantation, the main weakness is the simple daily operational equipment. The main opportunity is the potential land and favorable regional conditions, while the main threat is the presence of competing PKS factories and ramp entrepreneurs. The IFE matrix score is 2.987 and EFE is 3.641 where the company is in good internal and external conditions. The IE matrix shows the company's position in quadrant two, namely growing and building with the use of intensive and integrative strategies. The SWOT matrix produces five alternative strategies. The top priority strategy based on QSPM is to improve service quality to suppliers.
Keyword: SWOT, QSPM

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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