Judul: Stabilitas Kapal Bouke Ami (Stick Held Dip Net) yang Beroperasi di Perairan Laut Jawa: Studi Kasus KM. Varia Karunia.
Abstrak: Bouke Ami Ships is a squid fishing vessels that use nets gear. This net fishing gear is a modification from Thailand and Japan. The squid nets do not use Line Hauler but use as a replacement axle. The purpose of this study was: (1) calculate the static stability parameters of ships, and (2) determine the value of the quality of the ship static stability on four different simulated load conditions. The method used in this research is the case study method with direct measurement of the KM. Varia Karunia that is in the field. The results of the analysis of the third parameter value ratio obtained LPP/B, LPP/D, and B/D each worth 3.700; 9.751; and 2.635 and the coefficient of fineness vessel analysis examined each for Cb = 0.461; CP = 0.576 ; CVP = 0,600; Cw = 0.771 and = 0.726 still within the range of parameter values, the three main dimensions of the ratio value and the value of the coefficient of fineness five vessels studied were in the range value of static gear vessels similar in several regions in Indonesia . Value of static stability in KG1 = 0.678 m , KG2 = 4.793 m, KG3 = 3.040 m, KG4 = 2.319 m, and KG5 = 2.026 m having a good quality of static stability with vanishing angle over 1060 and has a stable equilibrium. Meanwhile, the calculations show that the high angle floading WL 5 draft at 2,259 meters then the resulting corner angle floading 24.240.
Keyword: angle floading, vanishing angle, design, Static Stability

Judul: Desain dan Konstruksi Kapal bouke ami (KM Varia Karunia) di Galangan Kapal PPS Nizam Zachman Jakarta
Abstrak: Bouke ship ami a squid fishing boat but has a different design to the squid jigging vessels because of the way the operation of fishing gear. Generally, this ship is a ship which is modified from the previous ship types. The purpose of this study was to analyze the design and construction of ships boukeami based ship shape and dimension ratio. In addition, another goal was to analyze the type of wood used in the construction of ships and the timber size. Dimentional ratio showed that L/B was 3,7 meters, L/D was 9,7509 meters, and B/D was 2,6353 meters. Coefficient of fineness of this ship implied in the coefficient of fineness studied by Iskandar and Pujiati (1995). It means that this ship included in typical static gear in Indonesai. Type of wood used for the construction of the ship is the same as that set by the BKI. This showed that some of wooden beam used in ship construction complied with BKI’s rules, however some of them were not.
Keyword: PPS Nizam Zachman., ship bouke ami, construction, Design

Judul: Efektivitas Gugus Pelindung ‒OH Fenolik pada Floroasetofenon dan 3,4- Dihidroksibenzaldehida dalam Upaya Menyintesis Kuersetin
Abstrak: Quercetin is a of flavonol compound with hydroxylated A and B rings. Synthesis of this group of compounds is commonly through condensation reaction between hydroxylated acetophenoneand benzaldehyde derivatives and needs introduction of phenolic-OH protecting groups. In this study, tetrahydropyranylether (OTHP) and benzylether (OBn) were compared for their effectiveness in protecting the 2 phenolic‒OH groups in phloroactophenone and 3.4-dihydroxybenzaldehyde as the first step in quercetin synthesis. OTHP gave a huge steric hindrance so it could not protect the phenolic-OH of phloroacetophenone. On the contrary, OBn protected phloroacetophenone and 3,4-dihydroxybenzaldehyde more effectively. Two equivalent of BnBr in dimethylformamide after 24 hours, produced 2’,4’-di-Obenzylphloroacetophenone and 3,4-bis-(benzyloxy)benzaldehyde with 48% and 55% of yield, respectively. The condensation reaction between the two protected precursors produce mixture of products predicted to contain eriodictiol chalcone Bn-protected. Oxidative cyclization of the chalcone was yet to be succeeded to failed to form tetra-O-benzylquercetin. However, the effectiveness of OBn as a phenolic-OH protective group has been successfully demonstrated in this study
Keyword: phloroacetophenone tetrahydropyranil, 3.4-dihydroxybenzaldehyde, chalchone, benzyl