Judul: Faktor-Faktor yang Memengaruhi Populasi Sapi Dalam Negeri serta Implikasi Kebijakannya terhadap Swasembada Daging Sapi di Indonesia
Abstrak: In recent years, consumption of beef in Indonesia tends to increase. Increase in the rate of demand for beef in line with population growth, per capita incomes, and changing consumer tastes. The problem that occurs is that Indonesia is still a net importer of beef with 35 percent of beef supply comes from imports. It is influenced by the volume of beef production in Indonesia is not proportional to the increase in consumption. Analysis method using multiple linear regression analysis with the period from 1989 to 2011 as well as the use of beef population as the dependent variable and the four independent variables which include beef prices, feed prices, credit, and production technology. Concluded that the price of beef, credit, production technology and animal feed prices can affect cattle population in the country. Therefore, efforts to achieve self-sufficiency in beef (Beef Self-Sufficiency Program) in 2014 focused on increasing the cattle population.
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Judul: Analisis Faktor-faktor yang Memengaruhi Permintaan Daging Sapi dan Implikasinya terhadap Kebijakan Impor
Abstrak: Chaotic imported beef in November 2012, resulting in a rise in the price of beef in the market so that the need for special handling so that beef prices. This research was conducted to analyze the factors that affect the demand for beef in Indonesia and the role of substitution, and the implications of policy import. This study uses secondary data the period 1982-2011. Analyses were performed with the econometric approach, estimation models using Principal Component Regression (RKU). The results show the coefficient of determination (R2) of 71.7 percent, and the elasticity of each of the variables tested small relative to the demand for beef show that beef consumption is not replaceable. Beef demand continues to increase every year even though the price of beef is relatively expensive. Formulations stabilization policy covering the prices of additional supplies at the time of the great religious, imports done merely to meet national shortage of supplies beef and ensure the availability of food -substitutions beef as the availability of chicken meat and eggs, and increases the production of beef in the long run.
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Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4