Judul: Analisis Preferensi Dan Faktor-Faktor Yang Membentuk Preferensi Konsumen Terhadap Produk lkan Laut Segar (Studi Kasus Di Kecamatan Tanah Sareal, Kota Bogor)
Abstrak: Untuk dapat memasarkan suatu produk agar sesual dengan selera konsumen maka diperJukan suatu survei mengenai seberapa besar pengaruh dari atribut yang terdapat pada produk tersebut dan apa sebetulnya yang dimginkan dan dibutuhkan konsumen daiam hal produknya ataupun hal-hal apa saja yang tidak disukai oleh konsumen.
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Judul: Analisis Perrnintaan Berdasarkan Preferensi terhadap Karakteristik lkan Laut Segar di Pasar Kebon Kernbang, Kota Bogor, Jawa Barat
Abstrak: Suatu penelitian tentang analisis permintaan berdasarkan preferensi terhadap karakteristik ikan laut segar di Pasar Kebon Kembang, Kota Bogor telah dilakukan, yaitu untuk mengetahui profil konsumen berdasarkan preferensi terhadap karakteristik ikan laut segar dan mengetahui pengaruh karakteristik ikan laut 'segar beserta faktor-faktor ekonomi terhadap permintaan konsumen. Pada prinsipnya penelitian ini rnenggabungkan teori atribut dan permintaan. Metode analisis data yarlg digunakan adalah Linear Regression data Considerations deilgan Transformasi Ln, kemudian model dievaluasi berdasarkan kriteria ekonomi, statistik dan ekonometrik. Hasil penelitian menunjukan (1) profil konsumen berdasarkan preferensi terhadap karakteristik ikan laut segar relatif beragam ditinjau dari jenis kelamin, usia, jumlah anggota keluarga, pekerjaan, pendidikan dan pendapatan, (2) konsumen dibatasi harga dan pendapatan pada saat melakukan per~nintaan ikan laut segar. (3) kebenaran teori atribut dapat dibuktikan. Penelitian ini dapat dimanfaatkan dalam perencanaan dan tindakan pasar untuk meminimalksr! resiko yang mungkin terjadi
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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