• Journal of Radiation Protection and Research
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• v.24 no.3
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• pp.161-170
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• 1999

System performances in terms of image quality between an amorphous silicon DR system and a conventional film-screen system were evaluated. Various aspects of image quality MTF (modulation transfer function), NPS (noise power spectrum), SNR(signal-to-noise ratio) and contrast were measured and calculated. The MTF of the DR system was comparable to the film-screen systems. The noise was mainly dominated by the quantum mottle in both systems and the electronic noise was found in the DR system. The contrast of the DR system was better than the film-screen systems by virtue of high sensitivity and image processing. Compared to the film-screen systems in general radiography, the DR system had similar resolution and showed better contrast with the same exposure condition after contrast manipulation. The results of this study provide some useful information about the performance of the DR system in connection with medical applications.

• Journal of Oriental Neuropsychiatry
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• v.20 no.1
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• pp.89-106
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• 2009

Objectives : The purpose of this study is to analysis of the herb medications corresponded with neuropsychiatry of "Bang-Yak-Hap-Pyun". Methods : The herb medications of "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong(上.中.下統) and "Enlargement side prescriptions" (增補方) are selected by comment on the chief virtue including reference word of corresponded with neuropsychiatry. Results and Conclusion : "Bang-Yak-Hap-Pyun" is a book most people who have a background or career in Han Medicine(韓醫學) would pore over. They corresponded with neuropsychiatry among the herb medications of "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong(上.中.下統) are 55 prescriptions that Sang-Tong(上統) is 8 prescriptions, Jung-Tong(中.統) is 23 prescriptions and Ha-Tong(下統) is 24 prescriptions. And the herb medications corresponded with neuropsychiatry of "Enlargement side prescriptions" (增補方) are 40 prescriptions. And then the herb medications corresponded with neuropsychiatry of "Bang-Yak-Hap-Pyun" received much influence from "Dong-Eui-Bo-Gam". Incidentally the herb medications corresponded with neuropsychiatry of "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong showed the high percentage in Neurosis. And the herb medications corresponded with neuropsychiatry of "Enlargement side prescriptions" showed the high percentage in Psychosis. Besides not only put "Enlargement side prescriptions a premium on "Dong-Eui-Bo-Gam", but also made it the herb medications which were recorded on books flowed after "Dong-Eui-Bo-Gam" known. It was entered up books quoted from "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong but the herb medications were that were not succeeded from "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong. Therefore "Enlargement side prescriptions" shows the efforts for supplement of "Bang-Yak-Hap-Pyun" Sang.Jung.Ha-Tong.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.53
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• pp.49-74
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• 2012

This study primarily concerns the seller's right to require performance under the United Nations Convention on International Sale of Goods(1980) (here-in-after the CISG). By virtue of art. 62 of the CISG, the seller may require to pay the purchase price, take delivery or perform his other obligations. The right is known as a process whereby the aggrieved seller obtains as nearly as possible the actual subject-matter of his bargain, as opposed to compensation in money for failing to obtain it. The study describes and analyzes the provisions of the CISG as to the seller's right to require performance, focusing on the questions of what the seller can require the buyer to perform, and what the restrictions of his right to require performance are. It particularly deals with main controversial issues among scholars as to whether art. 28 of the CISG is applied to the seller's action for the price and so that it opens the door domestic traditions and national preconditions that prevent judges and enforcement authorities in some contracting states, and whether the seller's to require performance is subject to the duty to mitigate loss within the meaning of art. 77 of the CISG. On the basis of the analysis, the study puts forward the author's arguments criticizing various the existing scholars' views. In addition, this study provides legal and practical advice to the contracting parties when it is expected that the CISG is applicable as the governing law.

• KSBB Journal
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• v.22 no.4
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• pp.255-259
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• 2007

Liquid calcium fertilizer evenly dispersed has been prepared using calcium carbonate powder and several surfactants. The calcium contents of nine fruits and vegetables were compared after spraying the liquid fertilizer onto the leaf of them six times for 2 months. The calcium contents of cabbage and potato increased to 155% and 154%, respectively. In addition, by virtue of the relatively high contents of calcium, rigidities of the texture were also increased, which would result in higher value-added vegetables. Kimchi was prepared using a Korean cabbage sprayed with the liquid calcium fertilizer and its fermentation characteristics were analyzed. A sensory evaluation has been performed to give the best result for a calcium Kimchi fermented for 14 days.

• Journal of the East Asian Society of Dietary Life
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• v.25 no.4
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• pp.549-564
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• 2015

This study was conducted on the head family house of Panseogong coterie of Andong Kwon clans in Daksil village, Bongwha gun, Kyungbuk: historical sources survey and field visit over four rounds were conducted from March to June 2014. In-depth interview, storytelling, and nutrition facts were used as methods of research using 49 participants, and the potentials of trend goods were the main purpose of this research. The specialties of bongwha prefecture in the Chosun Dynasty were pine nut, manna lichen, ginseng, sweetfish, and wild honey. Ritual food bulcheonwi's offerings a feature in Choongjae Kwonbeol's head family - were sacred wine, me, gang, otang, myun, myunjeok, pyunjeok, pyunchung, pyun, po, chungpomook, dojeok, sookchae, ssam, chimchai, sikhye, chogwa, silgwa, soojunggwa, etc. The ritual foods of bulcheonwi's head family house Choongjae Kwonbeol were commercialized through storytelling. Choongjae Kwonbeol's ritual ceremonies, recognized for their national royalty, were reorganized as the traditional Korean table settings, so that the Korean people could easily access them. The special meal called "Geumgyeporansang" represented the head family house foods' essence to share and serve others through the Dacshil village's natural beauty, Bonghwa's local ingredients, and festivities after the "Chungjae Gwunbal Bulchun" rituals. The ritual foods called "Cheongamjungsang", utilizing "Chungjae Gwunbal Bulchun" rituals, were represented in the form of a lunch box: such foods illustrate the classical scholar's mindset that enjoys the nature and arts through education and virtue.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.477-487
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• 2017

This study is for empirical analyzing the ethical contents in using social media, such as what kind of ethical responsibility do the teenage users have, how do they recognize the ethical concept in producing or sharing the information and how these ethical factors affect their behavior of social media uses. After survey with the structured questionnaire, statistical analyses with available 227 cases are processed. As a result, there are 4 ethical factors in using social media which as included 'privacy', 'copyright', 'fullness', 'accuracy', 'truth-telling', 'fairness', 'relief of harmful effect', 'credibility', 'objectivity', 'impartiality', included 'moderation', 'respect', 'autonomy', 'control', 'care of mischief', included 'interactivity', 'multiplicity', 'anonymity', 'divergence', 'social community', included 'transparency', 'openness'. All these ethical factors are positive correlated to the level of social media users' opinion expression, opinion support, information leading, information searching. Especially, is the most effective factor to social media users' behavior.

• Journal of the Korean Society of Costume
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• v.55 no.1 s.91
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• pp.73-85
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• 2005

According to a rise in leisure time thanks to a five-day workweek system, the population of golf tends to rise day by day as exercise not extreme and doing together with nature, and as a sport with high concentration degree, by virtue of people who have an interest in health care and who strive to enjoy a leisure life. This study targeted the whole male and female golfers who reside in the areas of Seoul and Gyeonggi-do and are now playing golf, carried out sampling, and finally used 485 sheets for analyzing data. The study results were as follows; First, as a result of analyzing the whole lifestyle propensity depending on golfers' gender, it was shown that, as a result of making it type by factor, a male golfer was classified into shopping intention, fashion intention, family intention and tradition intention, and a female golfer was divided into shopping intention, fashion intention, family intention and man-and-woman equality intention. Second, as a result of analyzing a characteristic of gender depending on the standard of selecting goods, it showed the difference between genders as for the standard of selecting goods in case of purchasing golfwear, and it showed the difference in style/design, physique fitness, wearing of a famous golfer, convenience of laundry and management, and functionality, and male golfers were shown to select after seeing the clothes which a famous golfer did wear, compared to female golfers. Also, it could be seen that there was difference depending on the standard of selecting goods and the purchasing propensity in case of buying golfwear.

• Korean Journal of Optics and Photonics
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• v.21 no.2
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• pp.69-73
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• 2010

We propose a method to enhance the response time of a twisted nematic liquid crystal (TN-LC) cell using an anisotropic polymer. Polymer networks are formed by the phase separation between a LC and a UV-curable polymer. A TN-LC cell is exposed to UV light after the mixture of LC and anisotropic polymer is injected into the TN-LC cell. As a result, turn-off time of a TN-LC cell can be decreased remarkably without any loss of the transmittance. The turn-off time of a TN-LC cell with pure LC was 16 ms, but those of polymer networked TN-LC cells were 12, 11, and 9 ms when the concentration of the polymer was 3, 5, and 10 wt%, respectively. Moreover, by virtue of the polymer network, the backflow effect and the delay time generated during the turn-off process disappeared.

• Journal of the Korean Society of Earth Science Education
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• v.8 no.2
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• pp.218-226
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• 2015

This study is to find out that the effect of science class applied Jigsaw cooperative learning to study achievement and Creative personality. The class section of this study is 5th grade 1 semester of science 2 chapters, 'the solar system and the stars' This study has been aimed at 2 class 40 students of 5th grade in D metropolitan city G elementary school in 2015, one class 20 students are the research group to apply science class using a Jigsaw cooperative learning techniques, another class 20 students were comparison groups to apply general science classes. Research result and conclusion obtained through the discussion are as follows. First, science class using Jigsaw cooperative learning technique was not effective. Even though the science class with jigsaw cooperation education could not achieve the beneficial academic achievement, which is the cognition factor, when it comes to precedent study, the definition factors such as teamwork, consideration and readership show great effects. Second, science class using Jigsaw cooperative learning technique was effective in cultivating creative personality. This can be interpreted that the science class applied the jigsaw cooperation study help the creativity development. Third, after the science class applied jigsaw cooperation study, the students' perceptions also have changed in positive way. They were tend to care each other and cooperate with others. That means the class is good way to cultivate collective intelligence, which is a virtue of community.

• Korean Journal of Microbiology
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• v.14 no.1
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• pp.8-16
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• 1976

About 600 strains of bacteria which can utilize methanol as the sole source of carbon were isolated from natrual sources, and their ability to produce amino acids on the medium containing methanol as the sole source of carbon was tested by paper chromatography, by which 3 strains were screened by virtue of their relatively shperior amino acid production. These were tentatively identified as follows ; one strain belonged to the genus methylomonas, while the remaining two were members of the genus Hyphomicrobium. Further studies on their growth characteristics were carried out with relation to amino acid production. According to these experiments, the following results were obtained. 1) No vitamin added was effective for the growth enhancement. 2) Optimum initial concnetration of methanol was proved to be one per cent (v/v), and no conspicuous effect of feeding methanol on the growth of these bacteria ould be observed, provide that the initial methanol concentration was controlled to 1 per cent. 3) Among the nitrogen sources tested, 0.1 per cent of ${(NH_4)}_2SO_4$ enabled the best growth. 4) Addition of 0.001 per cent $MgSO_4.$ $7H_2O$ largely increased the growth of all three strains. Other metal ions tested were either not effective or strongly inhibitory for the growth. 5) Addition of 0.1 per cent each of yeast extract, corn steep liquor, beef extract, and peptone also increased the growth markedly. 6) About $75{\mu}$g/ml of alanine could be obtained finally after 64 hr culture of Hypm. A on the medium lcontaining 0.1 per cent yeast extract and 1 percent methanol. Approximately $40.{\mu}$g/ml of glutamic acid by Hypm. GA and $43.{\mu}$g/ml of alanine by Mtlm. A were produced at the same culture conditions.