Judul: Diagnosis Penyakit Demam Berdarah Dengue Menggunakan Voting Feature Intervals 5
Abstrak: Penyakit Demam Berdarah Dengue (DBD) atau Dengue Hemorrhagic Fever ialah penyakit yang disebabkan oleh virus dengue yang ditularkan melalui gigitan nyamuk Aedes aegypti dan Aedes albopictus. Tingkat kematian akibat penyakit Demam Berdarah Dengue relatif masih tinggi. Salah satu penyebab tingginya tingkat kematian tersebut adalah keterlambatan diagnosis. Semakin cepat diagnosis dapat dilakukan, semakin cepat pula pertolongan bisa diberikan sehingga dapat mengurangi angka kematian tersebut. Penelitian ini akan menerapkan algoritma Voting Feature Intervals 5 (VFI5) untuk mendiagnosa penyakit DBD.
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Judul: Diagnosa Pasien Demam Berdarah Dengue dan Demam Tifoid Menggunakan Algoritme Voting Feature Intervals 5 (VFI5)
Abstrak: Dengue fever and typhoid fever is a disease primarily found in adolescents or adults.The death rate of dengue fever and typhoid fever are still relatively high. The delay in diagnosis is due to the analysis of dengue fever and typhoid fever symptoms being quite difficult. This is due to the similarity of simptoms between dengue fever and typhoid fever. This research will apply the Voting Feature Intervals 5 (VFI5) algorithm to diagnose dengue fever and typhoid fever. The data used are the result of the common symptoms of dengue fever ang typhoid fever patients of a hospital. The data sample consist of patients suffering from dengue fever and typhoid fever comprised of 20 patients with dengue fever and 20 patients with typhoid fever. In this research we use seven symptoms including fever, constipation, nausea, vomiting, muscle aches, abdominal pain, red spots, and dirty tongue. Seven symptoms were then used as features on VFI5 algorithm. Application of the algorithm VFI5 on patient data was able to provide a sufficiently high prediction results for each iteration. The first iteration, second, third, and fourth produces an accuracy of 100% by using data that has been validated, but the accuracy produced using the new data has an accuracy of 60%. The result of interval training on VFI5 algorithm states that dengue fever and typhoid fever have similar symptoms, making difficult for the layman to distinguish the two diseases without laboratory testing.
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Judul: Pengaruh Lama Reaksi dan Laju Alir SO3 pada Produksi Surfaktan Methyl Ester Sulfonate Acid (Mesa) dari Metil Ester Jarak Pagar (Jatropha curcas L)
Abstrak: Surfactant is an active agent which could reduce surface tension. Surfactant could be found in cleaning agent, emulsifier, and homogenizer. Applications of surfactant are in detergent industry, food and beverage industry, and oil industry. According to its hydrophilic complex we could divide surfactant into four groups which is anionic surfactant, cationic surfactant, amphoteric surfactant, and non-ionic surfactant. Anionic surfactant is the most needed surfactant in the world Methyl ester sulfonates Acid (MESA) are one of the anionic surfactant which is renewable. One of the prospective feedstock of MESA is jatropha curcas. The dominant fatty acid of jatropha curcas oil is C16 unti 18. This fatty acid will have good detergency if it converted to surfactant. Jatropha curcas also doesn’t compete with food as a industry feedstock. Sulfonation method to produce MESA are falling film method with Single Tube Falling Film Reactor (STFR) 5 liter scale. The feedstock are jatropha curcas oil which is converted to methyl ester trough esterification process and continued with trans-esterification process (es-trans). The reactant which is used is sulfur trioxide (SO3). This reactant is chosen because it more reactive and produce less sludge than H2SO4 or Na2SO3 reactant. This research scope is only cover MESA production. MESA is an intermediate product for MES which is not purified yet. The goal of this research is to know the effect of reaction time and reactant flow rate to physic-chemical characteristic of MESA. The levels of reaction time are 30, 45, 60, 75, and 90 minutes. The SO3 reactant flow rate levels are 2,2, 2,8 dan 3,0 kg/hour. Analyses of MESA cover interfacial tension, surface tension reduction, iodine value, active matter content, acid value, and pH. . The range of interfacial tension of MESA are 1,1-4,43 dyne/cm. The
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