Judul: Food Micro Business Development Strategy In Pariaman City, West  Sumatera Province
Abstrak: Pemerintah Kota Pariaman, Provinsi Sumatera Barat menetapkan Kampung Perak sebagai sentra makanan ringan di kota tersebut. Hal ini menyebabkan jumlah usaha mikro meningkat 29% selama tahun 2020-2022. Usaha mikro makanan harus memiliki strategi pengembangan usaha sehingga mampu bertahan. Penelitian ini bertujuan untuk menjelaskan faktor internal dan eksternal usaha mikro makanan, merumuskan strategi pengembangan, dan menentukan strategi prioritas pengembangan usaha mikro makanan. Sampel dipilih berdasarkan non probability sampling, yang melibatkan 4 responden pakar terdiri dari 3 responden pemilik usaha mikro, 1 akademisi, dan 1 responden dari Dinas Perdagangan Tenaga Kerja Koperasi (Perindagkop) dan UKM Kota Pariaman. Analisis data menggunakan matriks Internal Factor Evaluation (IFE), matriks External Factor Evaluation (EFE), matriks Internal Eksternal (IE), Strengths Weakness Opportunity Threat (SWOT) dan Quantitative Strategic Planning Matrix (QSPM). Hasil penelitian menunjukkan bahwa kekuatan utama usaha mikro adalah produk merupakan makanan khas daerah Sumatera Barat. Hal tersebut didukung oleh peluang jumlah wisatawan yang meningkat setiap tahunnya. Rumusan strategi alternatif yaitu memperluas pangsa pasar, meningkatkan kualitas produk, meningkatkan kualitas sumber daya manusia, memperluas promosi, dan meningkatkan hubungan kerjasama. Strategi prioritas berdasarkan QSPM adalah memperluas pangsa pasar. Kata Kunci: matriks EFE, matriks IFE, SWOT, Usaha Mikro, QSPM., The Pariaman City Government has designated Kampung Perak as a snack center in this city. It has caused micro businesses to increase by 29% during the 2020-2022 period. The micro business should have a business development strategy to survive. This study aims to explain the internal and external factors of food micro-enterprises, formulate development strategies, and formulate a priority strategy for the development of micro-food businesses. The sample was selected based on a non-probability sampling technique, which involved 5 expert respondents consisting of 3 respondents from micro business owners, 1 academics, and 1 respondent from the Cooperative Labor Trade Office (Perindagkop) and SMEs in Pariaman City. Data analysis used the Internal Factor Evaluation (IFE) matrix, External Factor Evaluation (EFE) matrix, Internal External (IE) matrix, Strength Weakness Opportunity Threat (SWOT), and Quantitative Strategic Planning Matrix (QSPM). The main strength of micro businesses is the product is a typical food of West Sumatra. This is supported by the opportunity for the number of tourists to increase. There are five alternative strategies, namely expanding market share, increasing product quality, improving the quality of human resources, improving promotion, and increasing cooperative relations. The priority strategy based on QSPM is to expand market share. Keywords: EFE matrix, IFE matrix, Micro Business, SWOT, QSPM
Keyword: Matriks IFE, Matriks EFE, SWOT, Usaha Mikro, QSPM

Judul: Rumusan Strategi Pengembangan UMKM di Kota Payakumbuh, Provinsi Sumatera Barat
Abstrak: Pemerintah Kota Payakumbuh memiliki potensi untuk pengembangan Usaha Kecil dan Menengah (UKM) khususnya makanan rendang. Hal tersebut perlu dibuat rumusan strategi dalam rangka meningkatkan perekonomian daerah melalui UKM. Tujuan penelitian adalah mengidentifikasi faktor internal dan eksternal, merumuskan strategi pengembangan UMKM dan merekomendasikan prioritas strategi pengembangan UMKM di Kota Payakumbuh, Provisi Sumatera Barat. Data primer diperoleh dari observasi dan wawancara. Sedangkan data sekunder di peroleh dari studi literatur. Analisis menggunakan matriks Evaluasi Faktor Eksternal (EFE), matriks Evaluasi Faktor Internal (EFI), matriks Internal Eksternal (IE), matriks Strengths, Weaknesses, Opportunites, Threats (SWOT) dan Quantitative Strategic Planning Matrix (QSPM). Faktor internal yang memiliki skor tertinggi yaitu lokasi bisnis yang strategis, sedangkan faktor eksternal yaitu kemudahan dalam mengakses pasar digital dan peningkatan pendapatan jika menggunakan teknologi digital. Rumusan strategi yang diperoleh yaitu peningkatan strategi pemasaran dan penjualan daring, kolaborasi dengan pemerintah untuk pelatihan menggunakan internet dan pemasaran daring, berinovasi dalam pengembangan produk ataupun layanan., Payakumbuh City Government has the potential for the development of Small and Medium Enterprises (SMEs), especially rendang food. It is necessary to formulate a strategy in order to improve the regional economy through SMEs. The research objectives are to identify internal and external factors, formulate SME development strategies and recommend priority strategies for SME development in Payakumbuh City, West Sumatra Province. Primary data were obtained from field observations and direct interviews with resource persons, namely the owners of SMEs. Meanwhile, secondary data was obtained from literature studies through relevant scientific journals and previous reports. Analysis using External Factor Evaluation (EFE) matrix, Internal Factor Evaluation (EFI) matrix, Internal External (IE) matrix, Strengths, Weaknesses, Opportunities, Threats (SWOT) and Quantitative Strategic Planning Matrix (QSPM) matrix. The internal factor that has the highest score is a strategic business location, while the external factor that has the highest score is the ease of accessing digital markets and increased income when using digital technology. The strategy formulations obtained are improving online marketing and sales strategies, collaboration with the government for training using the internet and online marketing, innovating in product or service development.
Keyword: UKM, Strategi Pengembangan, 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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