Judul: Pengaruh Kerusakan Buah Kelapa Sawit terhadap Kandungan Free Fatty Acid dan Rendemen CPO di Kebun Talisayan 1 Berau
Abstrak: The objective of this internship specifically was to study the factors that affect the quality of CPO. The internship was conducted in Talisayan 1 Estate PT Tanjung Buyu Perkasa Plantation, Berau, East Kalimantan from February to June 2013. Problem analysis using Ishikawa diagram and linear regression by making poor quality fruit, fruit “restan” (leftover), injury fruit, and the loss of crops as factors that cause of problems, both the activity of harvesting until transporting the yields. The analysis show that CPO degradation probelms one of which can be seen from the low rendement of palm oil (CPO) and high Free Fatty Acid (FFA) CPO. Low oilrendementcausedbypoorfruit qualityandyieldloss. High FFA CPO causedbypoorqualityfruit, leftoverfruit, andfruitinjury.
Keyword: rendement, palm oil, harvest, FFA, CPO

Judul: Analisis Produksi Kelapa Sawit ( Elaeis guineensis Jacq.) di Kebun Buatan PT Inti Indosawit Subur, Kabupaten Pelalawan, Provinsi Riau
Abstrak: The internship program has been conducted at PT. Inti Indosawit Subur, Buatan Estate, Pelalawan, Riau from February 13 to May 13 2012. The purpose of this internship program is to learn oil palm cultivation and specifically analyzes the factors that influence the production of palm oil. The data to be collected consist of primary and secondary data. Buatan estate generally have applied the technique of oil palm cultivation in accordance with standard operating procedures that have been established by the company. Based on double linear regression analysis, FFB (Fresh Fruit Bunch) production is influenced by the number of harvesting working days and the amount of harvester output. The coefficient of determination (R2) generated that variables of FFB production as dependent variable can be describe by the independent variables (harvesting working days, amount of harvester output and rainfall) for 98.3%. The main problem is the decrease in crop productivity for plants older than 22 years as the age of the plant is already above the maximum age of the average productivity of oil palm.
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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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