• Research in Plant Disease
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• v.17 no.3
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• pp.265-271
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• 2011

Seven phytoplasma diseases have been occurred on floricultural crops in Korea : Ph-ch1 and Ph-ch2 of chrysanthemum, Ph-lily of lily, petunia flat stem-Korean (PFS-K) of petunia, poinsettia branch inducing- Korean (PoiBI-K) of poinsettia, statis witches' broom-Korean (SWB-K) of statis and azalea witches broom (AWB). Classification of the seven phytoplasmal diseases based on 16S ribosomal RNA (rRNA) sequences showed that floricultural crop phytoplasma disease were widespread in order of aster yellow (AY), stolbur and X-disease in Korea. In phenotypic characters, the fasciation was occurred in both monocotyledon plant of lily and dicotyledon plants of petunia and poinsettia. Besides, the fascination was occurred in Ph-lily of stolbur, petunia PFS-K of AY and PoiBI-K of X-disease. This result indicated that phytoplasma classification based on 16S rRNA and symptoms are not consistently related. The comparison of 16S rRNA sequence of the seven floricultural crop phytoplasma with five tree phytoplasmal diseases of jujube witches' broom, paulownia witches' broom, wild jujube witches' broom, mulberry dwarf, golden rain phytoplasma occurred in Korea showed as high as 88.5-99.9% homology. Among them, especially mulberry dwarf showed the highest homology with the seven floricultural crop phytoplasms. Based on this result, floricultural crop phytoplasmas were assumed to be transmitted by insect vectors from tree phytoplasmas in Korea.

• The Journal of Korean Society for School & Community Health Education
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• v.19 no.1
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• pp.127-144
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• 2018

배경 및 목적: 이 연구의 목적은 OECD "더 나은 삶의 지수 2015"에서 34개 국가 중 29위로 평가된 한국인의 주관적 건강(subjective well-being)과 치료적 지지(therapeutic support) 관계에서 장소애착(place attachment)의 매개 효과를 탐색하였다. 방법: 비확률 표본추출 방법을 사용하여 서울 시민들 중 헬스클럽 이용자를 대상으로 설문지 조사를 실시하였으며, 구조방정식 모형분석을 통해 가설을 검증하였다. 결과: 분석 결과 치료적 감독(therapeutic oversight )만이 주관적 건강에 직접적인 영향을 미치는 것으로 확인되었다(B = .281, p < .05). 장소애착의 매개효과를 통해서 검증한 결과 치료적 감독 뿐만 아니라 치료적 증언(therapeutic testimonial)에 대해서도 유의하게 검증되었다(치료적 감독 간접 효과 = .155, p < .05, 치료적 증언 간접 효과 = .175, p < .05). 결론: 연구결과 주관적 건강에 영향을 미치는 것으로 장소애착의 매개효과가 큰 것으로 나타났다. 따라서 서로를 돌보며 회원들 간의 업적을 축하 할 수 있는 장소를 기반으로 한 건강 프로그램을 실행한다면 사회 구성원들의 주관적 건강 향상에 도움이 될 것으로 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• v.22 no.10
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• pp.1377-1385
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• 2009

Effect of inclusion of hard vs. soft wheat bran with different particle size on diet digestibility, growth performance and some slaughter traits was evaluated in fattening rabbits. Four isonitrogenous and isocaloric diets were used according to the origin of wheat bran (hard (HWB) - Triticum durum - and soft (SWB) - Triticum aestivum) combined with wheat bran particle size sieved by 2 mm (fine: 2) or by 8 mm (coarse: 8) in a bifactorial (2${\times}$2) study. A growth trial was conducted to measure the effect of treatments on performance in one hundred and twenty New Zealand White${\times}$Californian rabbits fed experimental diets from 50 to 87 days of age. Faecal apparent digestibility was determined within the last week in twenty animals per diet. Digestibility of nutrients was higher (p<0.05) in the diet containing HWB2, except for crude protein, ether extract and ash, than fine and coarse soft wheat bran diets. Final live weight, feed intake and feed consumption of rabbits on the diet with fine hard wheat bran were higher and resulted in greater daily weight gains (p<0.01) than for animals on the other diets. The slaughter yield and percentage value of organs were not significantly (p>0.05) affected by the diets fed; however, the diet containing fine hard wheat bran led to lower (p<0.05) percentages of skin, abdominal fat and carcass drip loss than the other dietary treatments. It is concluded that fine hard wheat bran can be better included in the diet than soft wheat bran to maximize growth performance without affecting carcass traits of fattening rabbits.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.11
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• pp.1414-1416
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• 2016

In this paper, a SWB (Super-WideBand) dipole antenna with self-complementary structure is proposed for signal intelligence. The proposed antenna consists of a self-complementary dipole antenna and a tapered balun for balanced feeding. The measured -10 dB reflection bandwidth of the proposed antenna is more than 28:1 (0.73-20 GHz) and 3 dB axial ratio bandwidth is 3.25:1 (1.91-6.22 GHz) with RHCP (Right Hand Circular Polarization) at +z direction. The measured radiation patterns are omni-directional in lower frequency band and bi-directional in higher frequency band. The measured peak gain within -10 dB reflection bandwidth varies from 2.83 dBi to 7.66 dBi.

• The Korean Journal of Food And Nutrition
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• v.25 no.2
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• pp.253-258
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• 2012

This study was conducted to investigate the effects of different active gluten and rice Nuruk(Asp. oryzae, Asp. kawachii rice Nuruk) levels on the quality properties of steamed rice breads. Enzyme(amylase and acidic protease) activity of Asp. oryzae rice Nuruk is higher than Asp. kawachii rice Nuruk. Among the loaf volume of active gluten that were tested (10, 13, 15 and 17%) an active gluten loaf volume of 15% produced the best steamed rice bread. As a result of the loaf volume test steamed rice bread with rice Nuruk was decreased than steamed wheat bread. Regarding color, all treatments produced significant differences. The L value was decreased in steamed rice bread more than in steamed wheat bread, and a and b values were increased, respectively. Hardness, gumminess and chewiness of SRB-2, 3, 4 were lower than SWB-1 but springiness were higher. According to the sensory evaluation of steamed rice bread, color, flavor, and uniformity of pores were the highest in the steamed wheat bread, and the chewiness and texture were good in the steamed rice bread containing added active gluten and rice Nuruk. In this study, addition of rice Nuruk in steamed rice bread did not increase loaf volume, but had an advantage for overall desirability.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.99.2-99.2
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• 2012

We updated the far-ultraviolet (FUV) spectral images of the entire Vela supernova remnant (SNR) using newly processed FIMS/SPEAR data. In the present study, we compare the newly produced FUV images with the X-ray and $H{\alpha}$ images, and examine how the Vela SNR evolves and interacts with the ambient medium on a global scale. The comparison with X-ray images has revealed a FUV filamentary feature corresponding with the boundary of the northeast-southwest asymmetry of the X-ray shell. The relatively low O IV] ${\lambda}1404$ to O III] ${\lambda}{\lambda}1661$, 1666 ratio estimated on the FUV filament is compatible with the previous proposal that the observed asymmetry of the Vela SNR could be due to the ${\gamma}2$ Velorum stellar wind bubble (SWB). The southwest FUV features surrounding a faint extended X-ray region are characterized as the region where the Vela SNR is interacting slightly stronger with ambient mediums within the dim X-ray southwest section. From a comparison with the $H{\alpha}$ image, we identify a ring-like $H{\alpha}$ feature overlapped with an extended hot X-ray feature of similar size and two local peaks of C IV ${\lambda}{\lambda}1548$, 1551 emission. Their morphologies are consistent with the expected shape when the $H{\alpha}$ ring is in direct contact with the near or far side of the Vela SNR. We suggest that the B3V-type star HD 76161 found at the center of the $H{\alpha}$ ring would be the exciting source of the H II region.

• Korean Journal of Culture and Social Issue
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• v.15 no.1
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• pp.187-205
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• 2009

Based on the Motivational States Theory(MOST), the present research expanded and complemented Kim(2007)'s proposal to add the Life Satisfaction Expectancy Scale(LSES) to Diener et al's Satisfaction With Life Scale(SWLS) to measure subjective well-being(SWB). In the present study, the Life Satisfaction Motivation Scale(LSMS) was introduced to measure the strength of motivation for life satisfaction in general. Two hundred and eighty six college students participated in this study. Factor analyses revealed a two-factor structure, with the factors corresponding to life satisfaction and life satisfaction expectancy. Measures of internal and temporal reliability show the LSMS to be a good complement for the measure of SWB(The LSMS showed high internal and test-retest reliability). It was found that the addition of the LSES provided a significant increment in predictive power over the SWLS in the prediction of various factors related with well-being prediction. Exceptionally, in the prediction of anger the LSMS had the most predictive power. There were some differences between male and female students in the correlations among life satisfaction, life satisfaction expectancy and life satisfaction motivation and well-being-related factors. The merits of including LSES in the measurement of subjective well-being and the limitations of this study are discussed.

• International Commerce and Information Review
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• v.15 no.3
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• pp.431-451
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• 2013

The aim of this study is to thoroughly review prior literature related to electronic bill of lading and investigate the current state of electronification of operational processes of both major international and domestic shipping lines. In addition, this study examines the meaning of Electronic Bill of Lading; the perception on Electronic Bill of Lading; and the impediment to Electronic Bill of Lading in the perspective of shipping lines. As a result, following obstacles deter further development of e-B/L: negative attitude on the utilization of e-B/L; the matter of trust on the utilization of e-B/L; and technical issues in relation to the use of e-B/L.

• Environmental Engineering Research
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• v.16 no.3
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• pp.137-148
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• 2011

In this study, a series of experiments was conducted on the relative degradation of commonly known endocrine-disrupting compounds such as bisphenol A (BPA) and $17{\alpha}$-ethinyl estradiol (EE2) in a single-component aqueous solution using 28 and 580 kHz ultrasonic reactors. The experiments were conducted with three different types of model water: deionized water (DI), synthetic brackish water (SBW), and synthetic seawater (SSW) at pH 4, 7.5, and 11 in the presence of inert glass beads and humic acids. Significantly higher sonochemical degradation (93-97% for BPA) occurred at 580 kHz than at 28 kHz (43-61% for BPA), regardless of water type. A slightly higher degradation was observed for EE2 compared to that of BPA. The degradation rate of BPA and EE2 in DI water, SBW, and SSW after 30 min of ultrasound irradiation at 580 kHz increased slightly with the increase in pH from 4 (0.073-0.091 $min^{-1}$ for BPA and 0.081-0.094 $min^{-1}$ for EE2) to 7.5 (0.087-0.114 $min^{-1}$ for BPA and 0.092-0.124 $min^{-1}$ for EE2). In contrast, significant degradation was observed at pH 11 (0.149-0.221 $min^{-1}$ for BPA and 0.147-0.228 $min^{-1}$ for EE2). For the given frequencies of 28 and 580 kHz, the degradation rate increased in the presence of glass beads (0.1 mm and 25 g) for both BPA and EE2: 0.018-0.107 $min^{-1}$ without beads and 0.052-0.142 $min^{-1}$ with beads for BPA; 0.021-0.111 $min^{-1}$ without beads and 0.054-0.136 $min^{-1}$ with beads for EE2. A slight increase in degradation of both BPA and EE2 was found as the concentration of dissolved organic carbon (DOC, humic acids) increased in both SBW and SSW: 0.107-0.115 $min^{-1}$ in SBW and 0.087-0.101 $min^{-1}$ in SSW for BPA; 0.111-0.111 $min^{-1}$ in SWB and 0.092-0.105 $min^{-1}$ in SSW for EE2. After 30 min of sonicating the humic acid solution, DOC removal varied depending on the water type: 27% (3 mg $L^{-1}$) and 7% (10 mg $L^{-1}$) in SBW and 7% (3 mg $L^{-1}$) and 4% (10 mg $L^{-1}$) in SSW.

• (The) Korean Journal of Educational Psychology
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• v.31 no.3
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• pp.389-408
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• 2017

The purpose of this study was to investigate the relationship of time pressure, discretionary time, and subjective well-being(SWB) of university students. In order to achieve it, 493 university students(220 male, 232 female) completed a set of questionnaires about time pressure, discretionary time, subjective well-being. The t-test, multiple regression analysis were performed to analyze the data. The results are as follows. First, There were significant differences among the positive emotion, the negative emotion and time pressure. However, there was no statistically significant difference between the satisfaction of life and discretionary time according to gender. Second, time pressure was negatively correlated with the satisfaction of life of university students but positively correlated with the negative emotion. The discretionary time was positively correlated with the satisfaction of life of university students but negatively correlated with the negative emotion. Time pressure and discretionary time were not correlated with the positive emotion. Finally time pressure significantly correlated with the satisfaction of life, the negative emotion. And It seems that time pressure had an especially strong effect on the negative emotion. Such results imply that time pressure is important for reducing university students's the negative emotion, a subfactor of subjective wellbeing.