Susilawati, Tri
Center for Science & Technology of Advanced Material - National Nuclear Energy Agency of

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APPLICATION OF SULFONATED POLYSTYRENE IN POLYMER ELECTROLYTE FUEL CELL Hendrana, Sunit; Erwin, Erwin; Krisman, Krisman; Syakbaniah, Syakbaniah; Isna’im, Isna’im; Yusmeri, Yusmeri; Satria, Neti; Susilawati, Tri; Sudirman, Sudirman
Jurnal Sains Materi Indonesia Vol 20, No 1: OKTOBER 2018
Publisher : Center for Science & Technology of Advanced Material - National Nuclear Energy Agency

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Abstract

APPLICATION OF SULFONATED POLYSTYRENE IN POLYMER ELECTROLYTE FUEL CELL. Sulfonated polystyrene (SPS) is polyelectrolyte solid that widely used in many aplications. In this works SPS is applied for some parts of polymer electrolyte fuel cell membrane due sulfonate group available in the structure. The investigation involve the application for membrane with addition of small molecules, i.e. benzimidazole and evaluating its microstructure and performance. Application of SPS solution as binding agent in MEA will also be presented.  The results show that when using SPS as fuel cell membrane, the additon of small molecules such as benzimidazole would modify its microstrusture as well as improve its ion conductivity. Meanwhile, some improvement still required for application of SPS solution as binding agent for preparation of Membrane Electrode Assembly or MEA.
GAMBARAN FAKTOR PENYEBAB KEJADIAN BAYI BERAT LAHIR RENDAH (BBLR) DI RSUD Prof. Dr. MARGONO SOEKARJO PURWOKERTO TAHUN 2010 Susilawati, Tri; Hikmanti, Arlyana; Yanti, Linda
Viva Medika Vol 4 No 2 (2011)
Publisher : Universitas Harapan Bangsa Purwokerto

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Abstract

Infant Low Birth Weight (LBW) is a newborn whose weight at birth of less than 2500 grams. The cause of LBW in general because of several factors, includingmaternal factors such as disease, age, parity, socioeconomic circumstances. Fetalfactors such as infection of the fetus and multiple pregnancies, as well asenvironmental factors. In hospitals Prof. Dr. Margono Soekarjo Purwokertoshowed the incidence of low birth weight in the period in 2012 recorded 591 LBWinfants and in the period of 2010 recorded 811 LBW infants.This study aims to describe the causes of the incident Infant Low Birth Weight(LBW) in hospitals Prof. Dr. Margono Soekarjo Purwokerto in 2010This research is descriptive quantitative study approach documentation. Samplingin this study using a quota sampling, sample of this research is all Infant LowBirth Weight (LBW) were born in hospitals Prof. Dr. Margono SoekarjoPurwokerto in 2010 as many as 100 cases. Measuring instruments used mastertable and type of data is secondary data. Data were analyzed using univariate.The result showed the majority of LBW was lbw as many as 55 respondents(55%), preeclampsia group of 65 respondents (65%), bleeding antepartum asmany as 76 respondents (76%), have a reproductive age as much as 39respondents (39%), has primiparous parity as much as 53 respondents (53%), hasa range of pregnancy respondent is <2 years of 60 respondents (60%) and has amild anemia as many as 40 respondents (40%).LBW among other factors causing preeclampsia, antepartum hemorrhage,reproductive age, parity primiparous pregnancy spacing <2 years old, mildanemia. Keywords: Infant Low Birth Weight (LBW), Causes