Judul: Analisis kelayakan fiannsial budidaya ulat sutera (studi kasus pada koperasi petani pengrajin ulat sutera sabilulungan III, Kecamatan Sukaresik, Kabupaten Tasikmalaya, Jawa Barat)
Abstrak: Sericulture are planting the mulberry as silkworm feed, producing the silkworm eggs and maintaining of silkworm till to fornlating the cacoon. It like a household business that relatively easy because it have a simple technology and intensive labour. The aim of this research were analyzed the characteristic of silkwomi farmer and analyzed feasibility of sericulture. The study was carried out on March 2006 at Silkworm Farmer Cooperation Sabilvlungan I11 and it was designed as a case study. It used primary and secondary data. The analysis data were descriptive and feasibility analysis. The silkwornl Iarnler were divided to three business scale according to square of mulberry garden. The characteristic of sikworm farmer were age, education level, experienced of sericulture, earning and status of land. Feasibility analysis is formulated based on two assum?tion. Follnulating of two assumption is adjusted to the real condition at research place. First, counting the cash flow without land rent and wage of fanlily's labour. This assumption showed that the sericulture is feasibled to ran with discount rate 12%. But, in second assumption that counting cash flow with land rent and wage of fmily's labour, it showed that sericulture is unfeasibled to ran with same discount rate 12%. Key Words : silkwornz, sericulturc., feasibility analysis
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Judul: Analisis nilai tambah pada persuteraan alam (studi kasus pada koperasi petani pengrajin ulat sutera sabilulungan III, Kecamatan Sukaresik, Tasikmalaya, Jawa Barat)
Abstrak: Sericulture development has a promising prospect because it support several business unit : cocoon producing, spinning and weaving The objective of this research was to analyse the level of added value from silk activity in business unit h m silkworm to cocoon, cocoon to silk yam, and the silkworm to silk cloth at KOPPUS Sabilulungan III, Tasikmalaya This research was designed as a case study research and conducted from March until April 2006. The data consisted of primary and secondary data This research used descriptive analysis and hayami method for added value analysis. The result indicated that activity in KOPPUS Sabilulungan III consisted of sericulture, spinning and weaving. Added value in each business unit wexe low : 2333% in sericulture, 25,51% in spinning unit and 39,68% in weaving unit To generate the . added value there has to be improvement in maintenance system in sericulture, optimalization of utility in spinning unit and diversification product in weaving unit Keywords : added value, silk
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Judul: Transisi Fasa Materi Hadronik ke Materi Kuark pada Inti Bintang Neutron.
Abstrak: Bintang neutron terdiri dari beberapa lapisan yang disusun oleh materi nuklir yang berbeda dengan kerapatan yang semakin tinggi ketika mendekati pusat bintang. Inti luar bintang neutron disusun oleh materi hadronik (nukleon, lepton, dan hyperon), sedangkan inti dalam bintang neutron disusun oleh kuark-kuark bebas (up, down, strange) yang saling berinteraksi. Tujuan penelitian ini adalah mempelajari bagaimana transisi dari inti luar ke inti dalam bintang neutron dengan menggunakan pendekatan RMF (Relativistic Mean Field) untuk materi hadronik dan CIDDM (Confined Isospin Density Dependent Mass) untuk materi kuark. Tekanan transisi diperoleh ketika potensial kimia barion materi hadronik dan materi kuark bernilai sama. Nilai tekanan transisi dengan parameter SU6-TM1 sekitar 87 MeV/fm3 dan diperoleh massa maksimum bintang neutron yaitu 1.92M dengan jari-jari sekitar 8.62 km. Nilai tekanan transisi dengan parameter SU6-G2 sekitar 53 MeV/fm3 dan massa maksimum bintang neutron yaitu 1.88M dengan jari-jari sekitar 8.16 km. Jenis transisi fasa adalah orde satu ditandai dengan diskontinuitas dalam kerapatan energi (adanya mixed phase). Parameter-parameter pada model nuklir yang digunakan menyebabkan perbedaan kekakuan persamaan keadaan (EOS) dari materi hadronik dan materi kuark sehingga nilai tekanan transisi dari fasa hadronik ke fasa kuark juga berbeda.
Keyword: bintang neutron, persamaan keadaan, transisi fasa