Judul: Analisis kelayakan finansial usaha ternak ayam broiler "Cipinang farm" kabupaten Bandung Jawa Barat
Abstrak: Salah satu sumber daging yang banyak diminati oleh masyarakat yaitu daging ayam, khususnya ayam broiler. Total produksi daging ayam broiler tersebut memenuhi 41,05% dari total kebutuhan masyarakat Indonesia akan daging. Kebutuhan masyarakat terhadap daging ayam broiler akan mengalami peningkatan seiring dengan meningkatnya jumlah penduduk, tingkat pendapatan dan tingkat pendidikan masyarakat. Peningkatan konsumsi dan permintaan masyarakat akan daging ayam broiler merupakan peluang bagi usaha peternakan ayam broiler.
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Judul: Analisis kelayakan finansial usaha ternak sapi perah (Studi kasus peternak anggota KPSBU di TPK Cibedug Kabupaten Bandung Barat, Provinsi Jawa Barat)
Abstrak: Peternakan sebagai subsektor pertanian merupakan salah satu sumber pertumbuhan ekonomi yang cukup potensial dalam upaya pembangunan ekonomi. Menurut Badan Pusat Statistik (2008), sektor pertanian memberikan sumbangan sebesar 29,01 persen terhadap perekonomian nasional dan 10,72 persen diantaranya berasal dari produk domestik bruto peternakan. Usaha peternakan di Indonesia selain berkontribusi dalam mendukung kebutuhan akan protein hewani juga turut berperan dalam meningkatkan pendapatan, memperluas lapangan kerja, maupun menopang sektor industri. Salah satu produk peternakan yang terus mengalami peningkatan permintaan adalah susu, yang ditandai dengan peningkatan konsumsi susu per kapita dari tahun ke tahun, mulai dari 5,79 kg/kapita pada tahun 2001 dan meningkat menjadi 6,8 kg/kapita pada tahun 2005. Menurut Direktorat Jendral Peternakan (2007), permintaan susu penduduk Indonesia dipenuhi oleh produksi susu dalam negeri sebesar kurang lebih 30 persen dan sisanya impor.
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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