• Proceedings of the Korean Society of Crop Science Conference
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• 2007.11a
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• pp.226.2-226.2
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• 2007

• Proceedings of the Korean Society of Crop Science Conference
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• 2007.11a
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• pp.231.1-231.1
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• 2007

• Journal of the Korean earth science society
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• v.36 no.3
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• pp.222-235
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• 2015

Samples were collected from both places including the coastal area within the height of 5 m above the mean sea level (msl) (DH) and the top of the coastal terrace of 10-15 m msl (KS) high in Gwangseungri, Gochanggun, Korea. To find the origin of the deposit in the coastal area, granulometric analysis and geochemical analysis were performed. The result showed that the DH samples were originated from the reddish soils overlaying weathered bedrock which presented gradual change of chemical composition from the bottom toward the top. Clay minerals were found from the DH samples. These results concluded that the DH samples were found as in-situ weathered materials. The KS samples were originated from the soil layer covering gravel layer at the foot slope of the hill along the coast. The KS samples contained different chemical compositions from the DH. It is inferred that some of this layer was disturbed or experienced the influx of foreign material. The particle size of the KS samples was different from those found on the beach. The particle size of lower parts of KS site was finer than that on the beach, but the particle size of middle part of the site was coarser than that on the beach. The sorting of the KS site was poorer than that on the beach. Thus, it is inferred that some parts of the layer were formed by short-lived high energy event rather than sustained and continuous action of tidal currents and/or waves. Analysis using an optically stimulated luminescence (OSL) method showed that the burial age of samples from KS site were found 0.65-0.71 ka. Though the characteristics of the sediment layer and forming event in this area should be further studied, it can be inferred that this sedimentary layer formed by coastal flooding with storm.

• Journal of the Korean earth science society
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• v.33 no.6
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• pp.497-509
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• 2012

The Gochanggun Kwangseungri macro-tide open-coast beach, located in the southwestern coast of Korea, was investigated in terms of the seasonal variations of surface sediment facies and sedimentary environment. Surface sediments of 45 sites in four seasons (May 2006 - February 2007) were sampled along three survey lines (15 sites in each survey line). The surface sediments of the Kwangseungri Beach are mainly composed of fine-grained sands, and its mean grain size is the coarsest in winter. Mud facies partly exists in summer, whereas it is nearly absent in winter. The spatial distribution of surface sediments shows a coast-parallel band of fine and medium sands during spring, fall, and winter. In the northern part, the study area is dominated by fine sands during summer, whereas by coarse sands during winter. These results can be interpreted that tide is more effective than wave on the surface sediment distribution of the Kwangseungri Beach during the summer season.

• Research in Plant Disease
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• v.27 no.4
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• pp.187-191
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• 2021

Wilt symptoms were frequently observed in Korean blackberry (Rubus coreanus) plants grown in farmers' fields located in Gochang and Jeongeup, Jeonbuk Province, Korea during disease surveys in July 2020. The disease occurred in 10 of the 13 fields surveyed in the two locations. The incidence of diseased plants in the fields was 5-80%. Seven isolates of Fusarium sp. were obtained from the diseased plants and examined for their morphological and molecular characteristics. All the isolates belonged to Fusarium oxysporum species complex based on the morphological characteristics but were identified as F. cugenangense based on the molecular characteristics. Two isolates of F. cugenangense were tested for pathogenicity on Korean blackberry plants by artificial inoculation. Pathogenicity of the two isolates on the plants was confirmed with the inoculation tests, which showed wilt symptoms similar to those observed in the diseased plants in the fields investigated. This is the first report of F. cugenangense causing Fusarium wilt in Korean blackberry.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.14 no.3
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• pp.181-188
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• 2009

The macro tidal flat of the Gochanggun Myongsasipri, located on the southwestern coast of Korea, is studied in terms of seasonal variations of surface sediment and sedimentary environment. Surface sediments of 45 sites in the winter (February) and the summer (August) are sampled across three survey lines (15 sites in each survey line), respectively. The tidal flat of open-coast Myongsasipri is mainly composed of fine to medium sand, the distribution of which shows a coast-parallel trend. Grain-size distribution has a bi-modal trend, and grain size in the winter is coarser than that in the summer. During the winter, the upper tidal flat is dominated by medium sand, while the lower tidal flat is dominated by find sand. Such a feature is attributed to wave-dominated sedimentation in the winter. The finer grains of the summer rather than that of the winter and relationship between texture parameters suggest that tidal energy plays an important role in tidal-flat sedimentation during the summer. This study represents an environmental change from wave-dominated conditions in the winter to tide-dominated conditions in the summer as a result of the seasonal variation in the intensity of onshore-directed winds and waves in the Myongsasipri tidal flat.

• Journal of Physiology & Pathology in Korean Medicine
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• v.18 no.4
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• pp.1007-1013
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• 2004

The study was conducted to investigate per oral (PO) effects of Raspberry wine on testosterone levels in Sprague-Dawley rats. Raspberry wine of 13% alcohol concentration, was prepared from ripen fruits of Rubus coreanus fermented with Saccharomyces cervisiae. PO administration of Raspberry wine for 15 week (group A) produced dramatic increases of serum testosterone levels. Increase in the testosterone level was observed, using gamma counter with 1251 testosterone, starting from 1 week post administration. Maximum increase in testosterone level was observed at 5 week post administration, 7.486±6.482ng/mL, which was 14.6 times higher than normal and at 15 weeks post administration it was recorded as 1.84±3.516ng/mL. However, PO administration of Saccharomyces cervisiae broth (Group B) and 13% brewed alcohol (group C) for 15 weeks resulted slight increase in testosterone levels, indicating Raspberry wine as an effective phyto-testosogenic beverage of the future.

• Journal of Physiology & Pathology in Korean Medicine
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• v.19 no.2
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• pp.375-379
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• 2005

This study was conducted to investigate the effects of black raspberry wine, administered per os on testosterone levels in rabbits. Black raspberry wine containing 13% alcohol(v/v) was prepared from ripe fruits of Rubus coreanus fermented with Saccharomyces cervisiae. Experimental rats were divided into 2 groups(A and B) with 2 animals group: Group A received black raspberry wine. Group B received 13% concentrated alcohol('Soju') over a period of 6 weeks. all animals were monitored weekly for testosterone levels by radioimmunoassay using $^{125}I$ labeled anti-testosterone monospecific antibody. There was a significant(1.7-2.33 fold) increase in testosterone levels in Group A with a peak at 1 week post administration of black raspberry wine. There was no significant change in testosterone levels of rabbits in Group B. These data point to yet uncharacterized phytotestronegenic mechanisms of black raspberry wine that appear to be independent of ethyl alcohol. Further investigation of the mechanism of action of this fruit is warranted. These observations have potential implications for human reproductive health.