Judul: Pengembangan pasar produk nugget jamur tiram (Pleorotus ostreotus) dengan pendekatan riset aksi
Abstrak: Perubahan pola konsumsi masyarakat saat ini yang mengarah pada makanan siap saji membuat pangan olahan beku semakin diminati. Namun bahan baku yang tidak bermutu dan bahan tambahan pangan berbahaya pada produk membuat konsumen menjadi ragu dalam mengonsumsinya. Tujuan dari penelitian ini adalah mengidentifikasi permasalahan yang terjadi pada konsumen makanan olahan beku serta menyajikan solusi untuk permasalahan tersebut sehingga diperoleh model bisnis terbaik. Penelitian dilakukan dengan pendekatan riset aksi dengan tahapan pengembangan pasar yang terdiri atas perancangan hipotesis kanvas model bisnis, pengujian permasalahan, perancangan profil produk, pengujian solusi, dan verifikasi kanvas model bisnis. Hasil penelitian menunjukkan bahwa terdapat permasalahan responden yaitu kandungan bahan tambahan pangan berbahaya pada produk olahan beku, bahan baku yang bermutu rendah, kandungan gizi produk yang kurang, dan harga pangan olahan beku yang bermutu tinggi terlalu mahal. Berdasarkan penelitian diperoleh hasil bahwa nugget jamur tiram dapat menjadi solusi terhadap permasalahan tersebut. Segmen yang dituju adalah orang tua yang memiliki anak usia balita diatas satu tahun hingga sekolah dasar, membutuhkan variasi makanan sehat dan bergizi serta kepraktisan dalam penyajian makanan bagi anak. Saluran penjualan yang diminati adalah toko jual beli melalui internet, penjual khusus dan distributor…
Keyword: Action research, Business model, frozen processed food, Market development, Mushroom nugget, Fast food, Food additives, Frozen food, Business model, Problem testing, Solution testing, Model canvas

Judul: Pengembangan Pasar Produk Masakan Sayur Terolah Minimal dengan Pendekatan Riset Aksi
Abstrak: Indonesian’s vegetable consumption level is relatively low. It is caused by consumption behaviors, nature of vegetables, and vegetable process. The purposes of the research are to identify problems of vegetables consumption, to find a customer segment, to provide solutions, to identify the product positioning and sales channel roadmap, and to generate a business model. This research used action research through customer development which consisted business model hypotheses, problem testing, solution testing, verification, sales channel roadmaping, and product positioning. The results showed that problems were the freshness of vegetables, the availability of time, process, nutrition, and hygiene. Customer segment who had these problems were professional women from middle upper and upper economic class. The solution was minimally processed vegetable dishes. Customer relationship strategy used social media promotion and customer service. These products were distributed through supermarkets. All results of research became into business model for company
Keyword: action research, minimally processed vegetable dishes, customer development

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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