• Journal of Korean Society of Forest Science
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• v.88 no.1
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• pp.38-46
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• 1999

Canopy structure conductances of a Norway spruce forest in the Solling Hills(Central Germany) and Central Forest Biosphere Reserve(320km to the north-west from Moscow) were derived from LE(latent heat flux) and H(sensible heat flux) fluxes measured(by Eddy correlation technique and energy balance method) and modelled(by one dimensional non-steady-state) SVAT(soil-vegetation-atmosphere-transfer) model(SLODSVAT) using a rearranged Penman-Monteith equation("Big-leaf" approximation) during June 1996. They were compared with canopy stomatal conductances estimated by consecutive intergrating the stomatal conductance of individual needles over the whole canopy("bottom-up" approach) using SLODSVAT model. The result indicate a significant difference between the canopy surface conductances derived from measured and modelled fluxes("top-down" approach) and the stomatal conductances modelled by the SLODSVAT("bottom-up" approach). This difference was influenced by some nonphysiological factors within the forest canopy(e.g. aerodynamic and boundary layer resistances, radiation budget, evapotranspiration from the forest understorey). In general, canopy surface conductances derived from measured and modelled fluxes exceeded canopy stomatal conductance during the whole modelled period, The contribution of the understorey's evapotranspiration to the total forest evapotranspiration was small (up to 5-9% of the total LE flux) and was not depended on total radiation balance of forest canopy. Ignoring contribution of the understorey's evapotranspiration resulted in an overestimation of the canopy surface conductance for a spruce forest up to 2mm/s(about 10-15%).

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.66-68
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• 2022

As data utilization becomes increasingly important, not only private companies but also public institutions are making great efforts to promote data utilization. The chief data officer is a key element of data governance, a driving system that achieves policy goals by adjusting the functions of each department in the organization responsible for data policy. With the enforcement of the Data-based Administration Law, all public institutions, including the Ministry of National Defense, have designated data officers, but it is not enough to play a practical role as it is still in the early stages of introduction. In this study, the current status of the operation of the defense data officer system is checked, and development strategy to play a practical role are presented.

• 대학교육
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• s.112
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• pp.4-6
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• 2001

• 대학교육
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• s.116
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• pp.18-20
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• 2002

• Convergence Security Journal
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• v.14 no.3_1
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• pp.71-77
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• 2014

Students in the NCO department who have concluded the agreement with army headquarters, exercise camp education environment and the method on how to carry out the education. In order to raise awareness on NCOs and obtain pride as a future army NCO, army field training is held once a year. The stress on the education is the establishment of national security awareness, proficiency in basic army training, awareness of NCO pride, and basic posture as a soldier. The demand for commissioning only those with satisfactory army field training results is becoming stronger. The satisfaction of the education states a clear goal as a future NCO. This army field training has a meaning when the demands and expectations of the trainee leads to a form of commissioning.

• Proceedings of the KSME Conference
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• 2001.06d
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• pp.3-13
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• 2001

• Proceedings of the KSME Conference
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• 2001.06e
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• pp.3-13
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• 2001

• Proceedings of the KSME Conference
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• 2001.06c
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• pp.3-13
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• 2001

• The Science & Technology
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• v.7 no.7 s.62
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• pp.16-19
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• 1974

다음글은 서울 국제 싸이엔스 클럽ㆍ월례회에서 발표한 특집내용을 발췌한 것입니다

• Proceedings of the Korean Vacuum Society Conference
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• 1997.07a
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• pp.126-127
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• 1997