Judul: Permormance analysis of web server load balancing with dynamic ratio algorithm
Abstrak: Seiring dengan meningkatnya kebutuhan akan penggunaan sumber daya yang ada di dalam jaringan komputer, teknologi jaringan juga semakin berkembang. Load balancing merupakan salah satu teknik routing yang dapat memanfaatkan beberapa sumber daya untuk dapat digunakan secara bersamaan. Ketika permintaan dari pengguna meningkat maka server akan terbebani karena harus melayani permintaan tersebut. Tujuan dari penelitian ini adalah membangun load balancer yang dapat membaca ketersediaan resource pada server. Pembagian request dilakukan dengan mempertimbangkan informasi resource sever tersebut, yang terdiri dari CPU, memory, dan disk. Algoritme penjadwalan yang digunakan adalah rasio dinamis dan sebagai algoritme pembandingnya adalah round robin. Hasil penelitian menunjukkan bahwa algoritme rasio dinamis bekerja lebih optimal dibandingkan dengan algoritme round robin. Algoritme rasio dinamis mampu meningkatkan throughput, meminimalkan waktu tanggap, dan menghindari overload., The increasing demand of the computer network resources usages has triggered the development of networks technology. Load balancing is one of the routing technique that can utilize multiple resources simultaneously. When the requests from the users increase, the server will be burdened for giving response to that requests. The purpose of this research is to build a load balancer that can read the servers’ resource availabilities. Based on these information, the requests distribution is performed by considering the resources such as CPU, memory, and disk. Dynamic ratio is used as the schedulling algorithm and compared with round robin algorihtm. The results will be compared to the one of round robin algorithm. The results showed that the dynamic ratio algorithm works more optimal than round-robin algorithm. Dynamic ratio algorithm is able to improve the throughput, minimize the response time, and avoid overload.
Keyword: load balancing, rasio dinamis, round robin, server

Judul: Pengujian Algoritme-Algoritme Penyeimbang Beban Statis
Abstrak: In this research, a prototype of load balancing program was created. The program can be run using one of four load balancing algorithms namely: round robin, randomized, central manager, and threshold. The four algorithms were tested and their performance were compared based on the measurement of execution time and load distribution evenness. Load indices to compare the central manager and threshold algorithms were CPU, memory, and harddisk I/O. Three types of programs with different domination in CPU instruction load, memory access, and harddisk I/O were used for testing purposes. The results showed that there was no dominant algorithm. Round robin, randomized, and central manager algorithms emerged alternately as the best algorithms in different test scenarios. It was also found that threshold algorithm was unable to distribute load as even as the other three algorithms.
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Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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