• Industry Promotion Research
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• v.5 no.1
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• pp.117-124
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• 2020

The purpose of this paper is to find out the origin and significance of Sipgan-Sipiji that Yinyang and five elements are assigned. By looking at the hypotheses that Sipgan-Sipiji may have originated from the ancient Chinese calendar, the contents of the materials recorded in the classical literature, and the records left in the Oracle bone script, we wanted to explore the starting point of Sipgan-Sipiji in Eastern humanities and social sciences that could never be overlooked. Through the literature review of Sipgan-Sipiji, the researcher believes that this code system was completed by Hwangje and his teacher Daeyo, who led paternal clan society in the latter part of the Chinese Neolithic Age, because of supporting the use of the October calendar associated with Sipgan, and because Sipgan in the Oracle bone script seems to keep the sacredness and at the same time to be used to document the time. I believe that this consideration of Sipgan-Sipiji will be helpful for future related research in the process of underlying the research effort of Myeongri Science, such as the security of the logic of the theoretical framework for the theory system and the proof through statistical social science techniques.

• The Journal of the Korea Contents Association
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• v.11 no.1
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• pp.72-82
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• 2011

This is an experimental research with the theoretical background of agenda setting effect and elaboration likelihood model studying 'whether visual cues such as imagery and subtitle of TV environmental news have effect on the viewers' perception?', 'whether visual cues such as imagery and subtitle of TV environmental news have differential effect on the viewers' perception, depending on the viewers' involvement in the environmental issue?'. This experimental research found that the more highly exposed subjects considers environment issue more important than the less exposed, during the process, visual cues such as imagery and subtitle in TV news have an effect on agenda setting. Futhermore visual cues such as imagery and subtitle have stronger effect on the perception of the less involved than that of the more highly involved as a unified peripheral cue. However the effect of environmental involvement as independent peripheral cue couldn't have meaningful statistical support. Despite the fact that many previous researchers have shown that verbal cues of TV news have effect on the perception of viewers, little attempt has been made to investigate effect of visual cues on the TV viewers' perception. Therefore, this research has an important implication as an early proof in a new stream of visual agenda setting and elaboration research.

• The Korean Society of Law and Medicine
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• v.19 no.1
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• pp.143-163
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• 2018

Implant procedure belongs to so called a commercialized medical treatment, its procedure is simple and clear, and the possibility of success is almost 100%. In addition, it is a selective method rather than an inevitable method for a patient's health, so the importance of liability for explanation is especially emphasized for protection of autonomous decisions by patients. Considering these characteristics, the plaintiff in the relevant case said that the contract of implant procedure has the characteristic of subcontract, and only the failure of implant itself and the violation of liability for explanation should be the defendant's fault liability. In addition, although the above procedure contract is considered as delegation rather than subcontract, whether it's the defendant's malpractice should be judged by general people's common sense rather than average people in the industry. Therefore, if all the implanted teeth were removed due to bleeding and pains, and the patient suffered from dysaesthesia during the process, the defendant's malpractice is fully proved. When the judgements of implant medical malpractice were researched, the court doesn't consider implant contract as subcontract, but it judges dentist's malpractice by whether the implant itself is successful, so it seems that the court acknowledges similar characteristics with subcontract whose purpose is completion of work to some degree. In addition, considering the detailed contents of presented medical malpractices, it seems that judging medical malpractice is based on the common sense of general people. Therefore, the argument of the plaintiff is valid when the fact the adjustment amount is relevant to the amount that the plaintiff initially claimed is considered even though the relevant case was decided to be compulsory mediation.

• Journal of Educational Research in Mathematics
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• v.9 no.1
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• pp.351-367
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• 1999

This study aims to study the discourses influencing high school students' concept and attitude toward mathematics, and to examine how gender differences concerning mathematical aptitude are created. This study is based on the results of previous two studies which suggested that mathematical competence differs not only according to gender, region and school year, but also even within the same gender. For this study, 12 students ranking in the top 10% at two co-ed high schools were interviewed to find out 1) what discourses are related to gender and mathematics, 2) in what way these discourses are formulated and gain currency, and 3) how they have affected students in general. Common notions concerning mathematics may be summed up as follows: 1) Most of the students believe that gender difference in mathematical aptitude results because biologically men tend to be strong in mathematics and analytical skills while women tend to have better linguistic ability. This concept can help male students' studying to have a greater learning toward mathematics. 2) A large number of the students believe that male students' studying method is based on comprehension whereas female students' method is based on retention, and hence the former group tends to be better at applying their learning than the latter group. This notion seres to encourage male students and discourage female students from tackling difficult mathematical problems. 3) Many students believe that, although female students may surpass their male counterparts in middle school or the first year of high school, they will eventually fall behind by the 3rd year. Despite research which shows that these common beliefs are not grounded in scientific proof, high-school girls, who may be strong in mathematics, lose self-confidence and feel a sense of crisis. The mechanisms which produce and reinforce such concepts as those mentioned above can be summarized as follows: 1) Regarding the choice of majors and future career paths, parents show different attitudes toward sons and daughters, and this tends to influence high-school girls and hinders them from entering mathematics-related fields. 2) Teachers with value systems based on stereo-typed gender roles affect students a great deal, and give different advice according to gender of their students, for selecting their major fields - for instance, whether to study the natural sciences as opposed to humanities. 3) This study indicates that peer-group behavior, of either support or exclusion, also reinforces the process of internalizing notions of gender difference related to mathematical aptitude. 4) The gender-based notion that men are naturally more inclined to have better mathematical ability has caused male students to choose the natural science subjects and female students to turn to the humanities. The discourses discussed above, propagated in schools and homes, and in the mass media, are continually reinforced along with general gender inequalities in the society at large.

• Korean Chemical Engineering Research
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• v.46 no.1
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• pp.184-188
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• 2008

This study presented simple and efficient fabrication of chemical sensors for the detection of acidic gas using 1,3-bisdicyanovinylindane as an indicator because it can be promising materials having property of the rapid color change according to the variation of pH. The dissociation of proton and dye in acidic condition as changing of ion pairs give rise to dramatically change the absorbance intensity of 1,3-bisdicyanovinylindane, which can be easily applied to the development of chemical sensors. In addition, indicator dyes having negatively charge in aqueous phase can be easily fabricated using layer-by-layer (LBL) methods by way of electrostatic interaction. For the proof of concept, we demonstrated the abrupt presentation of skeleton symbol on the chemical sensor, which could be resulted from the reaction of 1,3-bisdicyanovinylindane as background color with acidic gas. Thus, the rapid appearance of symbol will induce user's caution under the emergency condition. The presented chemical gas sensor using 1,3-bisdicyanovinylindane have strong advantages. First, the fabrication process of gas sensor was very simple and low-cost. Secondly, sensors reacted by acidic gas could be reused for several times. Finally, the chemical gas sensor would be environmentally friend, which can be a basic tool for the realization of eco-organic sensor device.

• Korean Journal of Food Science and Technology
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• v.34 no.3
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• pp.413-418
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• 2002

The dough was frozen either before or after fermentation at the five different freezing and storage conditions. Although fermentation before freezing was effective for rapid freezing, it reduced bread volume of the dough frozen at both air freezer and liquid immersion freezer. Freezing at the air freezer set to $-70^{\circ}C$ took more time for freezing and resulted in lower bread volume than freezing at the immersion freezer set to $-20^{\circ}C$. Therefore, the freezing in the liquid immersion freezer was more effective to reduce the freezing time and increase the bread volume. At the liquid immersion freezer, the higher temperature was more effective than lower temperature. The doughs frozen in a liquid immersion freezer set to $-10^{\circ}C$ and fermented after de-frosting produced higher bread volume than control unfrozen dough. And also there was no significant difference in bread volume between the control unfrozen dough and the dough frozen in a liquid immersion freezer set to $-10^{\circ}C$, fermented before freezing and re-fermented after defrosting. The longer proof time and greater loaf volume obtained for the dough frozen and stored at the air freezer set to $-70^{\circ}C$. Therefore the optimum process for freezing the dough was freezing immediately after mixing, storing at $-10^{\circ}C$ in a liquid immersion freezer and fermented after defrosting.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.2769-2777
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• 2014

This research herein aims to assist maximizing performance of introduced systems by managing the acceptance factor of uTradeHub that is easily overlooked in the system installation process by trading companies aiming to install uTradeHub system in future by conducting the two following things: i) grasping factors affecting system usefulness and user satisfaction derived from uTradeHub acceptance factor, and ii) analyzing the effect relationship of system usefulness on user satisfaction at an inspection level of system usefulness and user satisfaction, since the uTradeHub system introduced for mid- and small-sized trading companies in export and import works in mid-2008. Proof analysis was conducted by using SPSS 19.0 statistic package on data of 112 effective responses collected through questionnaire surveys, whose results are as follows. First, the uTradeHub acceptance factors having a significant effect on system usefulness are relative advantage, easy of use, task adaptedness, support of CEO, maturity of IT infrastructures, and degree of education/training. Second, the uTradeHub acceptance factors having an effect on user satisfaction are relative advantages, task adaptedness, support of CEO, maturity of IT infrastructures, and degree of education/training. Third, system usefulness showed a significant effect on user satisfaction.

• Journal of the Korea institute for structural maintenance and inspection
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• v.8 no.1
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• pp.175-181
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• 2004

This study is about a section where underground water level occurs at the underground 5m depth by the excavation of the ground, as a stream is adjacent to a excavation section of High Speed Railway ${\bigcirc}{\bigcirc}$ Station construction sections and a reservoir being always full of water is located at the left side of the construction section. Therefore this test is executed for the design and construction of buoyance anchors able to permanently prevent buoyance by the underground water level at working and for the stable construction and permanent smooth maintenance of structures. In this test, bar type anchors are divided according to their length and standard to execute test-anchor test, and In spot test, 9 test-anchors test, proof test to construction process, suitability test and acceptance test are executed 4 times to 9 test-anchors by dividing anchors according to the length of permanent anchor, the outer diameter of bar and boring diameter. Standard motion characteristic centering on load transmission and break mechanism of bar-type anchors for the prevention of buoyance will be showed in the thesis.

• International Area Studies Review
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• v.20 no.2
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• pp.113-140
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• 2016

This paper first extracts the main basis for the Middle-Income Trap(MIT) to apply these grounds to reality of the Chinese economy. And then confirmed crisis factors of China economy. Also discussed then the economic reforms of China in order to not fall into the MIT. After reviewing previous research extracted six factors the results will correspond to comply with the Chinese economy. Those are 'Over-investment', 'excess capacity' 'reduction of TFP continued,' 'disappearance and the aging of the population bonus', 'excessive debt and structural adjustment and financial instability of the company', 'income unequal expansion', 'low financial and information infrastructure accessibility', and 'low transparency index'. China's policy direction to avoid the MIT generally set properly, but proof that implementation process not easy, was appearing everywhere. After all, China economy should be modified now to a reforms of 'government failure' and promotion of function for ongoing restructuring system in the market. Because of the SDR incorporation from 2015, it is inevitable to face major constraints in the external aspects.

• Journal of the Korean Institute of Gas
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• v.23 no.4
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• pp.46-64
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• 2019

Technical practice code, KGS GC101 2018, for explosion hazard area selection and distance calculation of gas facility was enacted and implemented from July 12, 2018. This code includes whole contents of IEC60079-10-1 2015 (Explosive atmospheres Part 10-1: Classification of areas - Explosive gas atmospheres), and clarifies the interpretation of ambiguous standards or adds guidelines for standards. KGS GC101 is a method for classifying explosion hazard place types: (1) Determination of leak grade (2) Determination of leakage hole size (3) Determination of leakage flow (4) Determination of dilution class (5) Determination of ventilation effectiveness, finally (6) Determination of danger place (7) Explosion The range of dangerous places can be estimated. In order to easily calculate this process, the program (KGS-HAC v1.14, C-2018-020632) composed by Visual Basic for Application (Excel) language was produced by Korea Gas Safety Corporation. We will discuss how to use codes and programs to select and set up explosion hazard zones for field users.