Judul: Sifat Karkas dan Non-Karkas Sapi Silangan Lokal pada Berbagai Kondisi Perlemakan Tubuh
Abstrak: The study was aimed to examining the effect of body condition score (BCS) of local crossbreed cattle on carcass and non-carcass characteristics. This study used 73 bulls of local crossbreed cattle slaughter on state abbatoar at West Java, Central Java, and East Java. The slaughter weight, carcass and non-carcass weights at different BCS were recorded. The collected data were analyzed by analysis of variance (ANOVA) using general linear model (GLM) procedure. The differences between BCS were tested using Duncan multiple range test. Result showed that increased of BCS from 2 to 4, slaughter weight and carcass weight were increased (P<0.05), except carcasses dressing percentage. The non-carcas weight obviously increased with increasing body condition score (BCS). However significant between BCS differences in non-carcas characteristics occurred only in percentages of offal and tail.
Keyword: 

Judul: Karakteristik Karkas dan Non Karkas Domba Ekor Tipis Berdasarkan Body Condition Score di TPH Maleber Bogor
Abstrak: Body condition score (BCS) is one indicator to know high or low of fat and meat deposit on carcass and non carcass from an animal. The purpose of the research to evaluated carcass and non carcass characteristic of thin-tailed sheep (DET) on Body condition score (BCS) effect at slaughter house Maleber, Bogor. Research used 99 heads of DET. The sheep grouped into 3 group BCS, thin (1), medium (2) and fat (3) . Data were analyzed by Analysis of Variance (ANOVA). The result showed DET with BCS 3 (fat) were significant different higher live weight, carcass weight, and empty body weight from the other BCS (thin and medium). Carcass’s percentage on BCS effect showed same value from efect value of BCS 1, 2, and 3 . The differences of body condition score effect to non carcass characteristic were significantly (P<0.01) on weight and diverse on percentage whereby on the percentage of liver and rumen is different (P<0.05) but peresentase other components except heart, spleen and skin very different (P<0.01) . The percentage of weight from spleen, skin, and blood is not effected by BCS.
Keyword: thin-tailed sheep., non-carcass, carcass, body condition score (BCS)

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.
Keyword: