• Journal of Advanced Marine Engineering and Technology
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• v.30 no.1
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• pp.11-21
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• 2006

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.11a
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• pp.214-215
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• 2005

Naval equipments are installed and used for naval vessel with different environmental conditions comparing to the commercial vessel, for example, high engine power per ship displacement size, severe vibration and shock due to high running speed and explosion from naval gun's bombardment and underwater weapons. Therefore, those equipments must be installed on shipboard with small spaces, high ambient temperature around engine room and which are required be fabricated with high resistances of vibration, shock and heat resources. But in case of commercial vessel, the performances of their recent equipments naval have been improved continuously due to the technology development of domestic shipbuilding and shipboard equipment industries, together with the related fundamental industries i.e, metal, steel and electronic industries, to an international level since 1970. With these results, it became possible to unify the specifications of shipboard equipments for the commercial and military vessels(Dual-Use). In this study, vibration and shock test standards for the commercial and military vessels will be compared and reviewed technically.

• Journal of Communications and Networks
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• v.3 no.4
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• pp.317-323
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• 2001

Traditional configuration management involves complex labor-intensive processes performed by experts. The configuration tasks such as installing or reconfiguring a system, provisioning network services and allocating resources typically involve a large number of activities involving multiple network elements. The network elements may be associated with proprietary configuration management instrumentation and may also be spread across heterogeneous network domains thereby increasing the complexity of configuration management. This paper introduces an architecture for the self-configuration of networks (SELFCON). The proposed architecture involves a directory server, which is uses to maintain configuration information. The configuration information stared in the directory server is modeled using the standard DEN specification thereby allowing effective exchange of network, system and configuration management data among heterogeneous management domains. SELFCON associates configuration intelligence with the components of the network, rather than limit it to a centralized management station. The network elements are notified about related changes in configuration policies, based upon which, they perform self-configuration. SELFCON is able to provide automation of configuration management and also an effective unifying framework for enterprise management.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.5
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• pp.812-820
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• 2006

Ethernet has been given a greater attention recently due to tendency of unifying most of transmission technique(not only LAN, but MAN and WAN) to ethernet. Performance evaluation was performed using C language for 10Gbps ethernet Data Link to design the optimum hardware, then internal FIFO size was evaluated. In this paper, MAC core for 10Gbps ethernet which contains high layer interface, transmit engine, flow control block, receive engine, reconciliation sublayer, configuration block, statistics block, and XGMII interface block was designed using VHDL language and Xilinx 6.2i tool and verified using Model_SIM 5.7G simulator. According to the specification of 10Gbps ethernet, MAC core with 64-bit data path should support 156.25MHz in order to support 10Gbps. The designed MAC core that process 64-bit data, operates at 168.549MHz and hence supports the maximum 10.78Gbps data processing. The designed MAC core is applicable to an area that needs a high-speed data processing of 10Gbps or more.