Judul: Productivity improvement strategy for supporting national cane-sugar industrial cluster policy
Abstrak: Indonesian cane-sugar industry face several serious problems indicated by increasing of sugar imported amount of 1.27 million ton in the year 2006 compared with 1.49 million ton in 2007. If such condition continued, Indonesian sugar factories sustainability, esspecially those in BUMN affiliation will be threated. This research was aimed to formulate the strategy for productivity improvement of national cane-sugar industry. The stages of this research consisted of national cane-sugar factories performance evaluation, problem identification and strategy formulation on cane-sugar industrial productivity improvement. The methods used were institutional analysis and Interpretive Structural Modelling, Policy Analysis Matrix, Objective Matrix, Porter’s Diamond Model and SWOT-AHP. Survey, interviews and data collection for productivity measurement were conducted at four cane sugar factories, i.e. Gunung Madu, Bungamayang, Kebon Agung and Pesantren Baru cane sugar factories which represented national cane sugar industry. The results showed that natioan cane sugar industry productivity improvement can be reached through intensification of sugar cane cultivation through implementation of Good Agricultural Practises (GAP), improvement of factories efficiency through implementation of Good Manufacturing Practises (GMP), and sincronizing of government policy and regulation on national cane-sugar industral productivity improvement.
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Judul: Development of Indonesian sugar industry: policy and integrated production system analysis
Abstrak: Pada decade terakhir, industry gula Indonesia sedang mengalami berbagai masalah yang saling terkait yang mengakibatkan kemunduran dari industry tersebut. Volume produksi mengalami penurunan -3.3% per tahun sebagai akibat penurunan areal tebu dan produktivitas. Di sisi lain, konsumsi meningkat dengan laju 2.96% per tahun sehingga import meningkat dengan laju 16.5% pe tahun. Penurunan kinerja industry gula Indonesia disebabkan oleh tiga kelompok factor utama yaitu dukungan kebijakan domestic yang tidak memadai, kebijakan perdagangan internasional (impor) yang kurang tepat, dan inefisiensi pada tingkat usahatani dan pabrik., In the last decade, Indonesian sugar industry has faced some inter-related problems that have caused a setback of the industries. The production has been declining with a -3.3 annual growth rate, due to a decrease in area and annual growth rate, leading to an increase in import of 16.5 percent per annum. The declining performance of the industry has been attributed to the inappropriate government international trade and domestic support policies and inefficiency in farm and plant levels because of lack of integrated production system.
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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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