Judul: Analisis permintaan daging ayam broiler konsumen rumah tangga di Kecamatan Pancoran Mas Kota Depok
Abstrak: The aims of this research were : 1) to know the factors which influencing the total demand of broiler by the household consumers in Kecamatan Pancoran Mas Kota Depok, 2) to know demand elasticity of broiler by household consumer in Kecamatan Pancoran Mas Kota Depok. This research was held on 18 August until 13 September 2007. Data was analyzed using the descriptive statistic, multiple linier regression and response analyses (elasticity). The result showed that factors which highly significant to the broiler demand by household consumers in Kecarnatan Pancoran Mas Kota Depok were the broiler price, the beef price, inc~met,h e sum of family member and the favor level of dummy. The demand elastic, ty of broiler by the household consvmers in Kecamatan Pancorm Mas Kota Depok has elastic characteristic (-2.355). The cross elasticity (6.32) showed that broiler and beef are subtitution goods. While income elasticity is (0.447). It shows that in the household consumers in Kecamatan Pancoran Mas Kota Depok, broiler is mainly good (nonnal goods)
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Judul: Analisis permintaan daging ayam broiler konsumen rumah tangga di Kecamatan Pamulang Tangerang
Abstrak: Kecamatan Pamulang is one of sub district existing in Kabupaten Tangerang. It has a huge sum of population as a residence with the consumption rate of meat base protein a number of 2.46 kg/ capitall year (Animal Husbandry Official of Kabupaten Tangerang, 2005). Kecamatan Pamulang has several supermarkets and traditional markets which supplies the broiler meat for the society needs. The objective of this study was to learn the factor influencing the total of demand and the large of broiler meat elasticity by the household consumer in Kecamatan Pamulang. This study is done on March to April 2006. The samples were taken by the multistage purposive sampling. It took a number of 60's family as sample. The design of study was a survey method. The data were analysed that used is the descriptive statistic, multiple linier regression and response analyses (elasticity). The result of study explaining that from the seventh variables were only four variables which real influential to the broiler meat demands by the household consumer, that is the broiler meat price, the beef price, the sum of family member and the favor level of dummy. Those fourth variables were real influential at real level a = 0.01. According to the demands elasticity conjecture result explain that the price elasticity (-2.164) and cross elasticity (10.241) has elastic characteristic. Keywords: Demand, Tie broiler meat, Elasticity.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell