Judul: Implementasi Jaringan Peer-to-Peer Tak Terstruktur Menggunakan Protokol JXTA
Abstrak: Internet is useful for communication, exchanging information, and businesses. Most internet network is based on client-server system, which is a centralized network. The server acts as the center of network and has the ability to transfer data as requested by the client. In a client-server system, the network will be down if the server is busy or interrupted. This disadvantage can be solved by Peer-to-Peer (P2P) network. In P2P network, client or “peer” can communicate with other peers without relying on the server. One of the P2P network protocols is JXTA protocol, an open source protocol that can connect mobile devices or computers to P2P network. The objective of this research was to implement the unstructured P2P application by using JXTA protocol and additional peer group. In this research, the features of investigated P2P application were chatting within peer group, searching for files, and downloading files. It was found that these features can only be performed by peers that were directly connected to other peers in the same subnet. Furthermore, this research showed that the highest percentage of overhead file was 10.13% and the percentage of overhead protocol did not exceed 0.5%
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Judul: Rancang Bangun Jaringan Peer-to-Peer Webcam dengan Menggunakan Protokol JXTA
Abstrak: Internet is a media for exchange of information and data. Network used on the internet today still implementing client-server network model. Clients need the information must related to the server and request the information needed. System established client-server network is a centralized system and can potentially commercial. If the server was down, the information requested by the client can’t be given and the whole network will be disrupted. Peer-to-peer network is set up to reduce the problem of client-server. Peer-to-peer will not be affected to the problems that occur in each host. If one host to crash or be unable to connect, the network was still able to run. In this research we develop an application using JXTA protocol as a framework for peer-to-peer and API JMF as an additional feature integrated on a JXTA application. API JMF is used to access webcam and produces images or videos. Video or image files generated by the API JMF can be distributed directly into the peer-to-peer network which has been formed. Other connected peers can directly search and download the video files or images. Downloaded files will be directly stored into a local folder on each peer. Files downloaded can be directly redistributed by every peer. If one peer dies, the other peer can share the data from the dead peer after the file is downloaded from the source peer.
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Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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