• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.1
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• pp.13-16
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• 2003

Seeds of burcucumber were treated with accelerated aging, cold-stratification, and light quality illuminated during desiccation to enhance their germination and seedling emergence. The germination was increased by aging and cold-stratification although the latter treatment showed greater effectiveness than the former one. In the combined treatment of aging 6 days at $45^{\circ}C$ and cold-stratification, the germination was promoted under longer period of cold-stratification to reach nearly 100% in 3 week cold-stratification on the ninth day from sowing. In the sequentially combined treatment of aging, cold-stratification, and light quality during 24 hour desiccation at $35^{\circ}C$, no-stratified seeds showed the highest rate in red light treatment but the lowest in far-red light. This implies that the phytochrome action run during the desiccation of imbibed seeds. The red light exposure during drying for the cold-stratified seeds after aging accelerated the germination even more than the dark treatment and germinated 100% on the next day of sowing. It is concluded that the sequential treatment of aging, cold-stratification, and red light illumination during desiccation can highly promote percentage and speed of burcucumber seed germination.

• The Korea Journal of Herbology
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• v.25 no.1
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• pp.45-54
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• 2010

Objectives : The purpose of this study is to determine the impurity tolerance of Zanthoxylum Peel. Methods : Compare with medicinal Herb Books and the Pharmacopoeia of 6 nations. Results : Current Pharmacopoeia show different Zanthoxylum Peel's Purity, such as 2.0% of seeds and fruit stalk, etc. in North Korea, 2% of seeds in Vietnam, totally 3% in China. On the other hand, Korea and Japan set the total number 26.0% including the specific numbers such as 20.0% of seeds, 5.0% of fruit stalk, 1.0% of the other foreign matter. This Zanthoxylum Peel's Purity, 26.0%, is too high compared to that of other medical matters specified by The Korean Pharmacopoeia Ninth Edition. When The Japanese Pharmacopoeia Sixth Edition firstly set the Zanthoxylum Peel's Purity, the herbal name was Fructus. However, since the part for medical usage in origin is well-ripen pericarp, not seed, the permissible level, 30.0%, is supposed to be simple error range, 3.0%. Conclusions : As a result, I think bills concerning the Zanthoxylum Peel's Purity should be revised to the total number 3.0% or specifically set the level 2.0% of seeds, 1.0% of fruit stalk, twig and so on.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.18 no.2
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• pp.129-136
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• 2006

Optimal design of an air-to-liquid finned plate heat exchanger is considered theoretically in this study. Based on existing correlations for the pressure loss and the heat transfer in channel flows, the optimal configuration of the plate heat exchanger including the optimal plate pitch and the optimal fin pitch is obtained to maximize the heat transfer within the limit of the pressure drop for a given flow depth of the plate heat exchanger. It is found that the optimal fin pitch is about one ninth of the optimal plate pitch. In the optimal configuration, the flow and thermal condition in the channels is just at the boundary between the laminar developing and laminar fully developed states. It is also found when reducing the flow depth of plate heat exchangers for compactness, the heat transfer performance can be maintained exactly the same if the geometric parameters such as the plate thickness, plate pitch, fin thickness, and fin pitch are reduced proportional to the square root of the flow depth as long as the flow keeps laminar within the heat exchangers.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.353-364
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• 2015

The purpose of this study was to evaluate the relationship between socioeconomic factors, health behaviors and overweight and to provide information in the policy making process for ensuring health equity. Data of 66,249 adolescents aged 12 to 18 years were derived from the Ninth Korean Youth's Risk Web-based Study, which was conducted in 2013. Multiple logistic regression analysis revealed that overweight were related with gender, parental education, frequency of having breakfast, fruit consumption, vegetable consumption, snack consumption, and frequency of physical activity. Therefore public health programmes should target unhealthy behaviour of adolescents from lower socioeconomic groups to help prevent future life-course disadvantages in terms of health and social inequalities.

• International Journal of Human Ecology
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• v.16 no.2
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• pp.63-77
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• 2015

The current study investigated how academic stress, academic burnout, and academic self-efficacy relate to each other; in addition, this study examined the mediating effects of academic self-efficacy on the relationship between academic stress and academic burnout of Chinese adolescents. A total of 412 students attending third-grade from two different middle schools (ninth-grade in the United States) located in Jiading District of Shanghai participated in the final analysis. By using structural equation modeling (SEM) and the maximum likelihood estimation procedures of AMOS 20.0, the latent variable measurement models were confirmed. The results and conclusions of this study are summarized as follows. A positive correlation between academic stress and academic burnout was soundly supported by this study. Meanwhile, both academic stress and academic burnout indicated negative correlations with academic self-efficacy. The modeling indicated that academic self-efficacy has a partial mediating process and a direct effect on the relationship between academic stress and academic burnout. Thus, academic stress and academic burnout were significantly weaker when academic self-efficacy was higher. In the field of education and curriculum, these results are applicable for restructuring or developing Chinese middle school curriculum utilizing useful methods for adolescents to develop their academic self-efficacy.

• ETRI Journal
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• v.33 no.2
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• pp.219-229
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• 2011

In this paper, we propose a transformation scheme used to analyze online gaming traffic properties and develop a traffic model. We analyze the packet size and the inter departure time distributions of a popular first-person shooter game (Left 4 Dead) and a massively multiplayer online role-playing game (World of Warcraft) in order to compare them to the existing scheme. Recent online gaming traffic is erratically distributed, so it is very difficult to analyze. Therefore, our research focuses on a transformation scheme to obtain new smooth patterns from a messy dataset. It extracts relatively heavy-weighted density data and then transforms them into a corresponding dataset domain to obtain a simplified graph. We compare the analytical model histogram, the chi-square statistic, and the quantile-quantile plot of the proposed scheme to an existing scheme. The results show that the proposed scheme demonstrates a good fit in all parts. The chi-square statistic of our scheme for the Left 4 Dead packet size distribution is less than one ninth of the existing one when dealing with erratic traffic.

• The Korea Journal of Herbology
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• v.23 no.3
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• pp.135-140
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• 2008

Objectives : The purpose of this study is to clarify the medicinal using part of Linderae Radix. Methods : Find out the using part of Linderae Radix in the Pharmacopoeia, main Herbal book and present day scientific research result. Results : 1. In the Phamacopoeia of 6 Nation, The herbal name of Lindera strychnifolia is Linderae Radix, the origin is root, shapes of Linderae Radix are recorded spindle-shaped, slightly curved, some constricted in the middle to be moniliform on every Pharmacopoeia. But only in the Pharmacopoeoa of the people's republic of china, root is recorded as root tuber. 2. The Straight root of Linderae Radix can not be used as medicine on the Pharmacopoeia of the China, Vietnamese, Chinese Taipei. 3. In Gaebo Boncho(開寶本草) and Bonchodogyeong(本草圖經), Dongeuibogam(東醫寶鑑), Bonchogangmok(本草綱目), ickmulmyeongsildogo(植物名實圖考), only the spindle-shaped root of Linderae Radix can be used as medicine. 5. The picture of the root is also spindle-shaped. Conclusions : The herbal name of Lindera strychnifolia is Linderae Radix, medicinal using part is root tuber, spindle-shaped, some constricted in the middle to be moniliform, straight and not spindle-shaped tap roots can not be used medicinally, and allowing guide line of straight root will upgrade the quality of Linderae Radix.

• Korean Journal of Child Studies
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• v.26 no.4
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• pp.263-278
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• 2005

The purpose of this study was to develop a social skills training program for rejected young children and to investigate the effects of the program. The developed program used several kinds of interaction methods such as instruction, modeling, rehearsal, feedback, and positive reinforcement. The contents of the program are consisted of role-play, art, language activities, and games. The experimental group with a sample of 9 four-year-old children was those children rejected by peers. There were the other 9 children assigned to the control group. The experimental group received the social skills training program for 50-60 minutes per day twice a week during 12 sessions, and the control group received no treatment. And 9 popular children also joined the program from ninth to eleventh sessions. As compared to the control group, children in the experimental group showed a significant increase in peer acceptance and social skills after they participated in the program.

• Animal cells and systems
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• v.10 no.3
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• pp.121-123
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• 2006

In this study we reinvestigated the taxonomy of the collared many-toothed snake (Korean name: Bibaribem) of Jeju Island, Korea. The Bibari-bem is a colubrid indigenous to Jeju Island and was first assigned to S. collaris Gray. However, the geographic distribution of S. collaris is not continuous with the Korean peninsula, making it doubtful that Bibari-bem should be assigned to it. Some herpetologists have suggested that Bibari-bem may instead belong to the closely related S. chinensis G?nther. To resolve this conflict, we compared the diagnostic characteristics of S. collaris and S. chinensis as described in the literature with the characteristics of individuals collected on Jeju Island. We collected six individuals with one preocular, two postocular, two anterior temporal, and no lower ocular scales. Five individuals had nine (3-3-3 form) supralabials, among which fourth to sixth are touching the orbit and the ninth is the largest. One individual had eight (2-3-3 form) supralabials, third to fifth touching the orbit, with the eighth being the largest. These data suggest that Bibari-bem is not S. collaris, but S. chinensis.

• Annals of Clinical Neurophysiology
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• v.9 no.2
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• pp.81-84
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• 2007

Vernet's syndrome is a complex of multiple cranial nerve palsy including ninth, tenth, and eleventh cranial nerves which results from various lesions involving the jugular foramen. There are several kinds of lesions that can cause Vernet's syndrome. It includes congenital cholesteatoma, vascular lesions such as protruded jugular bulb, infections such as external otitis or abscess, and tumoral lesions such as schwannoma or paraganglioma. We present a rare case of Vernet's syndrome caused by non-specific inflammatory mass lesion in the neck area sparing jugular foramen.