• The Korean Journal of Ecology
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• v.23 no.5
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• pp.383-389
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• 2000

A comparative analysis on the Viticetea rotundifoliae (coastal dune shrub vegetation) in South Korea and Japan was carried out. 569 releves from the most typical and homogeneous stands of the coastal dunes in South Korea and Japan were used. This study was accomplished by using the syntaxa and hierarchical system of the Viticetea rotundifoliae in South Korea and Japan according to the Zurich-Montpellier School's method, and syntaxonomy, synecology, syndynamics and syngeography between two countries were also compared with. Coastal dune shrub vegetation in South Korea and Japan were defined to the Viticetea rotundifoliae representing southern type coastal shrub in Northeast Asia. Coastal dune shrub communities of the Viticetea rotundifoliae in South Korea and Japan are considerably corresponded between the two, and contain their own characteristic syntaxa. Coastal dune shrub communities of the Viticetea rotundifoliae in Japan showed much diversification in syntaxa and species composition than those in South Korea.

• Journal of the Korea Society of Computer and Information
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• v.13 no.6
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• pp.287-294
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• 2008

As shown in many precedent studies of sex violation, many rapes are done by acquaintances rather than strangers. Among them specially many are the cases carried out by date partners and so it is necessary to study on the date rape systematically and academically which is the most common sex violation. A recent study on the date rape executed in the country shows the seriousness of the problem clearly. The survey reported that 20.5 percentages of women had experienced the harmfulness of date rape. However compared with the general injured women, the injured ones of date rape rarely report it to related organs. The reason is that in the case of date rape both the injured ones and offenders just think of the injured things or offending works as a little excessive sexual relation or sexual contact, but not recognize it as sex violation. Therefore this study will introduce the results of precedent studies on the date rape based on the contents of Michael Shively, Perceived Risks of Date Rape, Judith M. Sgarzi, Victimology, and also introduce the prevention of the injury its countermeasures.

• Journal of The Korean Association of Information Education
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• v.16 no.3
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• pp.309-318
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• 2012

Smart learning is a new trend in education following E-learning, U-Learning, and M-Learning. In June 2011, the Korean government announced the education policy on promoting smart learning, and presented the vision and the direction for the smart learning. However, it seems that the current government-directed education policy on smart learning has promoted the unconditional implementation of the policy without taking into consideration of a variety of factors, such as the reality of the classroom, educational environment, educators' competencies to use smart learning, and so on. The aims of this study are to examine the reality of the classroom and the educational environments for smart learning, and to take a survey on the elementary teachers' use of the smart learning. In addition, the study attempted to investigate the teachers' understanding of the various factors regarding the use of smart learning. On the basis of the results of the survey, the problems of implementing smart learning in the classroom were analyzed, and then some suggestions were made to pave the way for the more improved and systematic smart learning.

• Korean Journal of Optics and Photonics
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• v.26 no.1
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• pp.9-16
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• 2015

We have developed ellipsometry lidar and measured aerosol and ice-cloud characteristics. To measure a full normalized backscattering phase matrix (NBSPM) composed of nine elements, we have designed an optical system with three kinds of transmission and three kinds of reception, composed of ${\lambda}/2$ waveplate, ${\lambda}/4$ waveplate and empty optic. To find systematic optical errors, we used clean day middle-altitude (4-6km) lidar signals for which the aerosol's concentration was small and its orientation chaotic. After calibrating our lidar system, we have calculated NBSPM elements scattered from an aerosol and from an ice cloud. In the case of an aerosol, we found that the off-diagonal values $m_{12},{\ldots},m_{34}$ of the NBSPM are smaller than those for a cirrus cloud. Also, the off-diagonal values of the NBSPM from a cirrus cloud depend on atmospheric conditions.

• Journal of agriculture & life science
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• v.46 no.4
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• pp.69-84
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• 2012

To provide the basic information on the excavation, conservation, and systematic management plan for preservation of valuable forested wetlands, a field survey was analyzed at public and private forests in Daegu city, 2010. The expected points of FGIS were identified, and buffer zones for the protection of forested wetlands were derived. According to the results from the 11 points of forested wetland, the flora of wetlands in Daegu city were consisted of a total of 169 taxa; 63 families, 131 genera, 148 species, 2 subspecies, 14 varieties, and 5 forms. The species diversity of shrubs in forest wetlands was highest at 1.560, and the evenness was highest in shrub trees at 0.913. Considering the type of wetland, topography, etc., the buffer zone was set at 20~50m from the core area boundary.

• The Korean Journal of Mycology
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• v.47 no.3
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• pp.241-247
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• 2019

In 2017, we collected a wood-decay fungus growing on a dead and decaying herbaceous plant (Reynoutria sachalinensis (F. Schmidt) Nakai) in Dokdo, the far-eastern island of South Korea. Morphologically, this species is characterized by resupinate, coriaceous to corky basidiocarps, poroid hymenophores, pseudodimitic hyphal system, and ellipsoid basidiospores. Based on morphological observation and internal transcribed spacer of ribosomal DNA, the fungus was identified as Xylodon flaviporus (Berk. & M.A. Curtis ex Cooke) Riebesehl & Langer. It is only the second macrofungal species reported from Dokdo, and R. sachalinensis is the first herbaceous plant to be identified as a host for X. flaviporus.

• Journal of Korean Society of Forest Science
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• v.108 no.1
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• pp.59-66
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• 2019

This study was conducted to evaluate the effect of the synthetic forest road network by calculating the optimal road density and layout of the forest road network in order to construct the systematic road network in the forested area. For this, five comparative routes were additionally planed and compared through evaluation indicators. As a result, the optimum road density of the study site was estimated to be 18.4 m/ha, and the synthetic forest road network was the best in the four indicators such as average skidding distance, standard deviation of skidding distance, development index, and circuity factor. In addition, the synthetic forest road network was comparable to the main road network by about 4 %p in the timber volume available and potential area size for logging, but the construction cost of the road was about 20 %p lower. It showed a synthetic forest road network was better in terms of economy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.7 no.6
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• pp.1319-1336
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• 2006

The successive round of talks oil Korea-USA Free Trade Agreement (FTA) has continued, and it also has the Intellectual property(IPR) unit. Until now, tile one of most disputing concerns in IPR unit through talks is the limitation of compulsory license of claimed invention. The US is urging to establish a safeguard for IPR, as similar measure of the US, to protecting the profit of the US enterprises through these on-going talks, it is more likely expected to take the offensive about infringement of the patent seriously. Based on the current circumstances, the provision strategy study is needed to obtain Korea inventors the first inventor defense under the US patent law system as well as understand the current Korea's patent law and its revision against that in the US. In patent Law, both nations with first to file system and first to invent system permit a prior user of an invention to continue to use the invention notwithstanding its subsequent patenting by another under being subject to certain qualifications and limitations, even though a patent by a later inventor is granted. Normally, the first inventor defense has been used to compensate the drawbacks of the first to file system. The US patent Law, however, adopting the first to invent system admits the first inventor defense. Therefore, pursuing counteract provision under consideration with Korean patent Law system and research environment along with investigating the reason why the US adopted its patent law system, the scope of right, and the new reform of Act. 2005 of the institute, which promotes the first Korean inventor to possess the defense right of the US, provides certain preparations for Korean companies against the expected offensive from the US ones under the US patent Law system.

• 사회경제평론
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• v.31 no.3
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• pp.307-346
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• 2018

Gunnar Myrdal has struggled throughout his academic life with the problem of the role of valuations in social sciences. His earlier viewpoint was that valuations should be completely separated from scientific analysis on facts. But he soon fundamentally changed his viewpoint. His later viewpoint was that social scientists should disclose his valuations, for valuations intervene all the processes of scientific researches. Value premises are the valuations coherently reconstructed and manifestly articulated. Myrdal argued that social scientists should disclose value premises and perform his analysis and normative judgement based on the value premises. And the value premises should be derived from the valuations held by the large or significant groups of the society under study, not from the researcher's own valuations. This paper tried to show that Myrdal's later viewpoint must meet the crux, that researcher's own viewpoint must intervene in choosing valuations of particular group among diverse groups in the society under stduy, and in deriving and reconstructing value premises from the valuations of that group. And it argued that the reason why Myrdal met the crux could be explained by that he accepted the emotivism of Axel $H{\ddot{a}}gersr{\ddot{o}}m$. And it proposed some methodological solutions for escaping the crux Myrdal met, while preserving the positive elements of Myrdals' viewpoint.

• Journal of The Geomorphological Association of Korea
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• v.15 no.2
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• pp.85-94
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• 2008

This study is to construe spatio-temporal characteristics of temperature in cities and changes of climatical regions in analyzing a change of Korea Peninsular climate. We used daily mean air temperature data which was collected in South and North Korea for the past 34 years from 1974 to 2007. We created temperature map of 500m resolution using Inverse Distance Weight in application with adiabatic lapse rate per month in linear relation with height and temperature. In the urbanization area, the data analyzed population in comparison with temperature changes by the year. An annual rising rate of temperature was calculated $0.0056^{\circ}C$, and the temperature was increased $2.14^{\circ}C$ from 1974 to 2107. The south climate region in Korea by the Warmth index was expanded to the middle climate region by the latitude after 1990s. A rise of urban area in mean temperature was $0.5-1.2^{\circ}C$, Seoul, metropolitan and cities which were high density of urbanization and industrialization with the population increase between 1980s and 1990s. In case of North Korea, Cities were Pyeongyang, Anju, Gaecheon, Hesan. A rise in cities areas in mean temperature has influence on vegetation, especially secondary growth such as winter buds of pine trees appears built-up area and outskirts in late Autumn. Finally, nowaday we confront diverse natural events over climatical changes, We need a long-term research to survey and analyze an index on the climatical changes to present a systematic approach and solution in the future.