Judul: Analisis Risiko Produksi Buncis Perancis di Firma Raja Buncis Desa Tajur Halang Kecamatan Tajur Halang Kabupaten Bogor
Abstrak: French bean is a vegetable comodition that people seek to supply market demand with high quality standard. The objective of this research is to identify the risk sources, the risk probability, the risk impact and handling strategy alternative that can be done to handle the risk production of French bean cultivation in Raja Buncis Firm. Results of risk sources identification are the risk sources of pests, disease and labor skill. The risk source of disease showed the highest point of probability which is 44.8%, as of the use of the z-score method. The biggest risk impact also caused by disease which is Rp. 5.283.132,388, as of the use of value at risk method or VaR. Every risk sources needs attention; most attention are given to the risk source of pests. The alternative of handling strategy for the risk source of pests and labor skill is preventive handling strategy while for the risk source of disease mitigation handling strategy prefrerred
Keyword: Bogor Agricultural University (IPB), z-score, value at risk, production risk, french bean

Judul: Pengelolaan Risiko Produksi Buncis Mini pada PD Pacet Segar, Kabupaten Cianjur
Abstrak: One of the important commodities of the horticulture sub-sector and has the opportunity to be developed includes vegetables. Mini bean, one type of vegetables, tends to increase its total production annually. Mini bean cultivation cannot be separated from production risks. PD Pacet Segar is one of the companies cultivating mini bean in Cianjur. This study is aiming at identifying risk sources of mini bean production, analyzing the possibility of risk occurrence and impact of risk source of mini bean production towards its revenue, as well as analyzing appropriate alternative strategies to address the mini bean production risks. The data analysis method used descriptive analysis and risk analysis. This study used primary data and secondary data, all of data is qualitative and quantitative data. Based on the field observations, the sources of risks in mini bean production included weather changes, seed quality, diseases, and pest attacks. Weather changes are a source of risk that may occur and have the greatest impact. The results of the risk mapping results indicated that there were two kinds of treatment strategies including preventive and mitigation strategies
Keyword: sources of risks, production risks, mini bean

Judul: Membran Komposit Kitosan-Zeolit untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Direct methanol fuel cell (DMFC) is a fuel cell that utilize methanol as the fuel source. The electrolyte membrane used in the DMFC system in this research was chitosan-zeolite composite membrane. The composite membrane was synthesized with chitosan-zeolite composition variation of 1:1, 1:2, 1:3, and 2:1. The membranes were analyzed by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope, and for the specific gravity. Membrane performances were tested with methanol uptake, methanol permeability, conductivity, and potential difference in the DMFC system. The FTIR spectrum showed no formation of new functional groups inducating that the composite membrane was a result of physical mixing. Morphological analysis showed that the membrane was nonporous. Chitosan-zeolite 1:3 composite membrane had the highest specific gravity and methanol uptake, 1.4226 g/mL and 41.44%, respectively. The highest proton conductivity was showed by the 1:2 chitosanzeolite composite membrane, namely 7.2946× 10-7 S/cm. Based on this research results, chitosan-zeolite composite membrane can be applied in DMFC system.
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