Judul: Analisis penawaran antar pulau ternak sapi potong dari Timor (NTT) ke Jakarta
Abstrak: Timor (NTT)sebagai kantong produksi ternak sapi potong di NTT memiliki kontribusi yang sangat tinggi terhadap perdagangan antar pulau ternak sapi potong terutama untuk tujuan jakarta. Masalah yang timbul adalah bagaimanakah kondisi dan situasi pemasaran di NTT dan JAkarta berpengaruh trhadap penawaran antar pulau ternak sapi potong serta bagaimanakah praktek-praktek tataniaga ternak sapi potong berikut mekanismenya dalam rangka usaha penawaran antar pulau ternak sapi potong dari Timor ke Jakarta? Untuk menjawab masalah-masalah tersebut maka dilaksanakanlah penelitian ini sejak Maret 1985 sampai September 1985.
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Judul: Analisa Tataniaga Daging Sapi Segar dan Beku di DKI Jakarta
Abstrak: Penolitian ini dilakukan di wilayah DKI Jakarta mulai dari tanggal 18 Februari sampai dengan tanggal 15 Maret 1980. Tujuan penelition adalah: (1). Untuk mempelajari bagaimana saluran tataniaga serta fungsi-fungsi tataniaga daging sapi di DKI Jakarta, (2). Untuk mempelajari marjin/ biaya tataniaga dan (3). Deri butir (1) den (2), diharapkan dapat disusun kebijokaznsen no meuras komcditi tersebut untuk masa yang ekan detang. Data yang dipakai dalam penelitian ini adalah (1) data primer dari hasil wawancara dengan responden, dan data sekunder yang dapat menunjangkau penelitian. Dari penelitian diketahui ada dua macam saluran tata-niaga/pengadaan daging untuk DKI Jakarta yakni (1) Saluran pemasaran dalam bentuk komoditas daging, berupa; importir daging untuk DKI Jakarta Pedagang Pongecer, atau Pedagang Pomotong Pedagang Pengecer. (2) Saluran pemasaran dalam bentuk komoditi ternak hidup, berupa produsen; Pedagang Pengumpul-Pedagang Pengirim Antar pulau/Regional - Pedagang Penerina-pedagang pemotong-pedagang pengecer Daging. ...
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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