• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.05a
• /
• pp.137-138
• /
• 2005

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.588-589
• /
• 2005

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.450-451
• /
• 2005

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.727-728
• /
• 2005

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.584-585
• /
• 2005

• Proceedings of the Korean Nuclear Society Conference
• /
• 1999.10a
• /
• pp.134.1-134
• /
• 1999

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.977-978
• /
• 2005

• Journal of Energy Engineering
• /
• v.24 no.2
• /
• pp.154-166
• /
• 2015

The in-core instrumentation measures core power distribution and coolant temperature in local regions of the core in pressurized water reactors. The installation types are distinguished by the designs of routing paths that exit either through reactor bottom mounted instrument nozzles or through reactor top mounted instrument nozzles. Although each type has unique advantages, it is generally known that top mounted design is more competitive with respect to emphasizing nuclear safety issues and ability to cope with severe accidents. The international nuclear vendors have provided various types of reactors with top mounted design. Nuclear power reactors in Korea, however, only have been designed to be applicable to the use of bottom mounted design, and it has been pointed out that the capabilities of Korean reactors against severe accidents should be further enhanced. The paper deals with technical issues on reactor internal and external design, in-core instrumentation, support assembly, sealing mechanism with nozzles, handling, and analytical issues in order to establish the ways of development.

• The Plant Pathology Journal
• /
• v.38 no.3
• /
• pp.203-211
• /
• 2022

Bacterial wilt, which is a major soil-borne disease with widespread occurrence, poses a severe danger in the field of tobacco production. However, there is very limited knowledge on bacterial wilt-induced microecological changes in the tobacco root system and on the interaction between Ralstonia solanacearum and fungal communities in the rhizosphere soil. Thus, in this study, changes in fungal communities in the rhizosphere soil of tobaccos with bacterial wilt were studied by 18S rRNA gene sequencing. The community composition of fungi in bacterial wilt-infected soil and healthy soil in two tobacco areas (Gengma and Boshang, Lincang City, Yunnan Province, China) was studied through the paired comparison method in July 2019. The results showed that there were significant differences in fungal community composition between the rhizosphere soil of diseased plants and healthy plants. The changes in the composition and diversity of fungal communities in the rhizosphere soil of tobaccos are vital characteristics of tobaccos with bacterial wilt, and the imbalance in the rhizosphere microecosystem of tobacco plants may further aggravate the disease.

• Proceedings of the Korean Society for Information Management Conference
• /
• 1997.08a
• /
• pp.155-163
• /
• 1997

This article describes the technical information management strategy for engineering company. The present time the quantity of information is increasing day by day, so company have problems for information service and needs the more efficient methods for information management activities. In this paper, the author suttests the improvement for engineering library system. Especially the case of KOPEC library system that can be useful engineering company information management plans.