Judul: Lingkungan Wide Area Network untuk pemrosesan paralel
Abstrak: Kine ja proses pmlel dalam jaringan dapat diukur dengan memperhatikan waktu komputasi dan waktu kornunikasi antar prosesor. Penefitian ini merekomendasikan afgoritma routing, topologi jaringan, ukuran paket clan bandwidth port router agar wakiu komunikasi antar prosesor dalam WAN dapat diminirnalkan sehingga kine ja proses pardel menjadi lebih baik. Penelitian hi d i l h a k a n pada teknologi ethernef menggunakan dua mebik perftorma, yaitu throughput dan delay. Perbandingan pengukuran performa proses p d e l pada ukuran paket 100, 1,000, 10,000 dan 100,000 byte rnernpcrlihatkan bahwa nilai thmughpuf tcrbaik dicapsi pada saat ukuran paket 1,000 byte. Paket yang Iebih btsar dari 1,000 byte membutuhkan waktu pernotongan paket dm penggabungan paket kembali. Paket yang Iebifi kecil dsri 1,000 byte, meski tidak mengalad pernotongan paket, data tersebut &an rnendapatkan overhead dari penambahan header dan ack yang baamya sama pada setiap penginman paket, berajapun data yang dibawa. Perbandingan penykuran performa proses parale1 pada algoritma routing OSPF clan EIGRP dalarn penelitian ini memberikan hasiI yang bervariasi. Penarnbahan ukuran bandwidth port pada router tidak mempertihatkan perbedaan. Seianjutnya, ada perbandingan pengukuran perfama proses paralei pada topalogi linear dm ring pada peneiitian ini juga tidak memperlihatkan perbdaan.
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Judul: Kinerja Protokol Routing dalam Komunikasi Real-time pada Jaringan Berkabel
Abstrak: To reach its destination, different routing protocols are used by routers to determine the path for real time data (voice and video) communications. Each protocol has its own method of doing the routing. This research evaluates the performance of three routing protocols, namely RIPv2, EIGRP, and OSPF, based on two parameters: packet loss and router re-convergence time. Test was conducted by using actual devices, i.e., one CISCO 1841 router and eight CISCO 2620XM routers with a small topology. Video file that is used has a duration of 119.25 seconds with video format MPEG-4 and total bit-rate 87.6 Kbps. To obtain the value of packet loss and router re-convergence time, when the stream running about 1 minute, the network will be impaired by turning off one of the router. The analysis was done by looking at the number of packets captured by sniffer and the log of the router. The result shows that protocol EIGRP has the best performance compared with RIPv2 and OSPF with average time 0.148 second to re-convergence and 40 loss packets.
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Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity