Judul: Effect of Multi-Streaming on SCTP to Mobile Ad Hoc Network (MANET) Performance.
Abstrak: Stream Control Transmission Protocol (SCTP) is a connection-oriented transport layer protocol that provides reliable data transfer service an Internet Protocol (IP) network. The two main features of SCTP are multi-streaming and multi-homing. Multi-streaming allows multiple streams to send data; if one stream fails, only part of the data is lost and needs to be resent. Multi-homing is a feature that allows for multiple IP addresses at one endpoint to ensure that failures don’t bring the transmission to a total halt. This research performed on Network Simulator (NS-2) to analyze multi-streaming effect in Mobile Ad Hoc Network (MANET). Mobile ad hoc networks were formed dynamically by an autonomous system of mobile nodes that were connected via wireless links in absensce of network infrastructure or centralized administration. The metrics which evaluted in this simulation were throughput, delay, and packet loss ratio. As a result, maximum stream number was different according to the receiver window size. If receiver buffer size was small, head-of-line blocking would be more severe, so the link needed an additional number of streams. If the receiver had enough buffer size to store many packets while waiting on a lost packet, it did not need additional streams. SCTP quality was good enough because the delay we got less than 4 seconds. For getting good streaming quality, the delay has to less than 4 or 5 seconds. Keywords : SCTP, MANET, multi-streaming, multi-homing, ad hoc, head-of-line blocking, receiver window.
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Judul: Analisis Pengaruh Kecepatan Mobilitas Terhadap Kinerja Video Streaming pada Jaringan Wireless Ad Hoc
Abstrak: Wireless technology has become a lifestyle in many countries. Though wireless networks provide more flexibility than wired networks, it has lower reliability and data transfer speed than wired networks. The development of streaming technology is analogous with the quality of the streaming services. Streaming technology becomes increasingly important with the growth of the internet because most users do not have fast enough connection to download large multimedia files quickly. This research presents calculations of data from experiments of video streaming performances in wireless ad hoc networks with bit rate format of video 256 Kbps, 512 Kbps, and 768 Kbps. Data captured from the experiments is divided into four scenarios: client performs mobility and client does not perform mobility, with one client perform video streaming and two clients perform video streaming concurrently. Client’s mobility speed is limited only by walking speed, which are 0.6 m/s, 1.2 m/s and 1.6 m/s. The video quality calculations are based on the Quality of Service (QoS) of video streaming, which include packet loss, throughput, delta and jitter.
Keyword: wireless ad hoc., video streaming, quality of service, mobility

Judul: Peranan aktivitas enzim B-glukosidase pada pembentukan komponen flavor panili selama proses kuring
Abstrak: Vanillin adalah salah satu flavor yang paling banyak digunakan di dunia. Flavor panili dihasilkan dari proses kuring dimana terjadi berbagai perubahan biokimiawi. Panili alami Indonesia dikenal memiliki kualitas yang lebih rendah dibandingkan panili Bourbon karena dipetij muda dan proses kuring kurang sempurna.
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