• Journal of the Korean Association of Geographic Information Studies
• /
• v.24 no.2
• /
• pp.102-116
• /
• 2021

For the safe operation of autonomous vehicles, the representative technology of the 4^th industrial revolution era, a combination of various technologies such as sensor technology, software technology and car technology is required. An autonomous vehicle is a vehicle that recognizes current location and situation by using the various sensors, and makes its own decisions without depending on the driver. Perfect recognition technology is required for fully autonomous driving. Since the precise road maps provide various road information including lanes, stop lines, traffic lights and crosswalks, it is possible to minimize the cognitive errors that occur in autonomous vehicles by using the precise road maps with location information of the road facilities. In this study, the definition, necessity and technical trends of the precise road map have been analyzed, and the HD(High Definition) map prototype based on the web GIS has been built in the autonomous driving-specialized areas of Daegu Metropolitan City(Suseong Medical District, about 24km), the Happy City of Sejong Special Self-Governing City(about 33km), and the FMTC(Future Mobility Technical Center) PG(Proving Ground) of Seoul National University Siheung Campus using the MMS(Mobile Mapping System) surveying results given by the National Geographic Information Institute. In future research, the built-in precise road map service will be installed in the autonomous vehicles and control systems to verify the real-time locations and its location correction algorithm.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.23 no.4
• /
• pp.140-155
• /
• 2020

This study was conducted to identify the location characteristics of infected farms in the areas where livestock diseases were clustered(southern Gyeonggi-do and Chungcheong-do), analyze the probability of disease occurrence in poultry farms, find out the areas corresponding to the conditions, and use them as the basis for prevention of livestock diseases, selection of discriminatory prevention zones, and establishment of prevention strategies and as the basic data for complementary measures. The increase of one poultry farm within a radius of 3-kilometers increases the risk of HPAI infection by 10.9% compared to the previous situation. The increase of 1m in distance from major roads with two lanes or more reduces the probability of HPAI infection by 0.001% compared to the previous situation. If the distance of the poultry farm located with 15 kilometers from a major migratory bird habitat increases by 15 to 30 kilometers, the chance of infection with HPAI is reduced by 46.0%. And if the distance of the same poultry farm increase by more than 30 kilometers, the chances of HPAI infection are reduced by 88.5%. Based on the results of logistic regression, the predicted probability was generated and the actual area of the location condition with 'more than 15 poultry farms within 3km a radius of, within 1km distance from major roads, and within 30km distance from major migratory birds habitat was determined and the infection rate was measured. It is expected that the results of this study will be used as basic data for preparing the data and supplementary measures when the quarantine authorities establish discriminatory quarantine areas and prevention strategies, such as preventive measures for the target areas and farms, or control of vehicles, by identifying the areas where livestock diseases are likely to occur in the region.

• Journal of the Daesoon Academy of Sciences
• /
• v.40
• /
• pp.39-76
• /
• 2022

The two religious ethics, Christianity's 'love your enemies' and Daesoon Jinrihoe's 'grievance-resolution for mutual beneficence', can be misunderstood as similar. The misunderstanding arises from these religious ethics having something in common that specifically points to a particular object, called an enemy, and contains instructions to treat that object altruistically. However, from the perspective of Religious Ethics, the two teachings are not the same. The beliefs they are based upon are different, the religious character they pursue is different, and their processes of obtaining legitimacy, logic, and implementation are different. The most distinct difference between these ethics is that the Christian ethic focuses on a victim's role whereas Daesoon Jinrihoe ethic emphasizes the roles of both victims and perpetrators. In case of 'love your enemies,' if a perpetrator turns away from a victim and believes that they would be forgiven for their sin, the victim is unlikely to practice the teaching 'love your enemies.' Accordingly, to avoid criticism over cases wherein love of an enemy is nothing but a shallow grace, the roles of the two sides should be more highlighted than that of the absolute being. As for grievance-resolution for mutual beneficence, this teaching encourages victims to resolve their grievance with a goal of mutual beneficence. The perpetrator should likewise resolve the grievances and grudges of their victim with the aim of mutual beneficence. Jeungsan especially stressed that perpetrators have to resolve 'Cheok (慼: the resentment and grievances that someone holds against the one who victimized them)' through the ethic of grievance-resolution in order for living well. In other words, 'the ethic of Cheok-resolution' is an ethic wherein the perpetrator also plays an important role in the implementation of grievance-resolution for mutual beneficence.

• Journal of the Daesoon Academy of Sciences
• /
• v.35
• /
• pp.295-330
• /
• 2020

This paper examines the current state of the field wherein theoretical issues of ecology are still in need of concentration. Ecological texts are reconsidered from a religious worldview by extracting eco-friendly notions within religion and discourse is also essential in the practical field. As a case study on this matter, this paper aims to describe various aspects of ecological theory in Daesoon Jinrihoe, a new religious movement in Korea. In short, in its view of the natural world, Daesoon Jinrihoe values that all things originated from the Supreme God who presides over them, and the two are organically interrelated. Hence, the principle of nature is cherished. Especially as the Later World draws near, the fundamental basis of nature is slated to undergo change, and this also features heavily in Daesoon Jinrihoe's view of the natural world. Furthermore, the Supreme God reforms nature, and human beings live lives in conformity and resonance with that reformed nature. Above all else, the doctrines of haewon sangsaeng (the resolution of grievances for mutual beneficence) and boeun sangsaeng (the reciprocation of favors for mutual beneficence) are advocated in Daesoon Jinrihoe. Each supports its own form of ecological discourse, and together, they can be called Sangsaeng Ecological Theory (the Ecological Theory of Mutual Beneficence). Specific discussions of Daesoon Jinrihoe and ecology should be considered in light of this finding.

• Journal of the Korea institute for structural maintenance and inspection
• /
• v.25 no.5
• /
• pp.24-31
• /
• 2021

The soundproof tunnels have been generally designed with H-beam girders, and the high weight of H-beam may cause the excessive design of the substructure. To solve this problem, this paper proposes a new soundproof tunnel girder design composed of pipes and discontinuous plates. First, the structural behavior of the straight girder according to the design parameters was examined through finite element analysis. The arrangement and shape of the plates were determined as the design parameter, to obtain the optimal design of girder. After then, the structural behavior and buckling stability of the arched girder were subsequently evaluated. As a result of the parameter analysis, it was confirmed that the axial force acting on the girder increased and the moment decreased as the ratio of unsupported sections decreased or the number of supporting plates increased. The stress concentration on the pipe member was relieved by increasing the long axis length of the elliptical plate. Arched girder analysis showed that the structural efficiency increase as the long axis of elliptical plate increase. As a result of the buckling evaluation, the buckling threshold load of the three connected girders was about 3.7 times higher than the design load. Consequently, it was confirmed that the proposed soundproof tunnel structure design satisfies both light weight and structural safety.

• Journal of the Korean Society of Radiology
• /
• v.16 no.6
• /
• pp.719-725
• /
• 2022

This study aimed to measure, quantitatively evaluate, and set the criteria for the minimum lead(Pb) shield thickness per level of clinically applied electron beam energy. The lead shield thickness per electron beam energy was measured using the primary field 95% reduction based on the open field at the depth of maximum dose (d_max) and depth from the surface as the reference depth of tissue dose(10 mm). The measured values were 1.906 mmPb and 1.992 mmPb at the d_max and 10 mm, respectively, regarding the lead shield thickness for 6 MeV electron beam; 2.746 mmPb and 3.743 mmPb for 9 MeV electron beam, 3.718 mmPb and 6.093 mmPb for 12 MeV electron beam, 7.300 mmPb and 15.270 mmPb for 16 MeV electron beam, and 16.825 mmPb and 25.090 mmPb for 20 MeV electron beam. Consequently, a thicker lead shield was required if the measurement was at 10 mm. The required lead shield thickness was also higher than that of the theoretical formula for electron beams of ≥ 16 MeV.

• Journal of Food Hygiene and Safety
• /
• v.37 no.1
• /
• pp.15-20
• /
• 2022

The purpose of this study was to compare the conventional culture method, enzyme immune method and the PCR method using species-specific primer in the analysis on the Salmonella spp. found in domestically distributed pet foods. For the study, Salmonella spp. were detected from 175 samples. From the conventional culture method and the PCR method, two samples (jerky and corn gluten) were determined as positive. Also, from the enzyme immune method, one sample (corn gluten) was test-positive. The study revealed that application of the PCR method with species-specific primer allows better distinguishment between the species of the strain collected from the samples than the conventional culture method and/or the enzyme immune method.

• Therapeutic Science for Rehabilitation
• /
• v.12 no.3
• /
• pp.61-77
• /
• 2023

Objective : This study analyzed the correlation between cognitive function and oral health-related quality of life (OHQoL). Methods : Demographic and clinical characteristics were extracted and utilized for subjects aged 45 years or older who participated in the 8th Korean Longitudinal Study on Aging in 2020. The dependent variable was the Geriatric Oral Health Assessment Index, and the independent variable was the level of cognitive function classified by the Mini-Mental State Examination scores. The analysis method used inverse probability of treatment weighting (IPTW). Then, the association between cognitive function and OHQoL was analyzed by multiple regression analysis. Results : Among the participants, 4,367 (71.40%) had normal cognition, 1,155 (18.89%) had moderate cognitive impairment, and 594 (9.71%) had severe cognitive impairment. As a result of analysis by applying IPTW, there was a negative correlation between the cognitive function group and OHQoL (normal vs. moderate: β = -2.534, p < .0001; normal vs. severe: β = -2.452, p < .0001). Conclusion : After propensity score matching, mild cognitive impairment showed a more negative association than severe cognitive impairment. Therefore, patients with cognitive impairment require oral health management education to improve OHQoL regardless of the level of cognitive impairment.

• Journal of the Daesoon Academy of Sciences
• /
• v.44
• /
• pp.53-96
• /
• 2023

This article apprehends Yeongdae (靈臺), the most sacred shrine of Daesoon Jinrihoe which has earlier historical precedents, as an example of material religion. In East Asia, the first Yeongdae was a structure that King Wen of Zhou commissioned to be built. As the time passed by, the meaning of Yeongdae was changed to signify a mental yeongdae, the object and the aim of cultivation, and the notional mindset that appears in the Daoist meditation, Cunsi (存思, visualization). This implies that Yeongdae has signified both material and non-material objects. Throughout most of history, these two concepts had never been related to each other, but shifted in form and meaning depending on context. Daesoon Jinrihoe, which emerged in the modern era of Korea, used the concept of investiture of gods and combined the two into one. Accordingly, the Yeongdae, referred to by King Wen to indicate his shrine, was expressed as a spot wherein the gods were enshrined on the earth. As an innovation, Daesoon Jinrihoe argued that gods correspond to properly eligible human beings according to the degree of their cultivation and that sacred space was instead defined a spot within the human mind, a mental yeongdae, where the gods could be enshrined into humanity (神封於人). From the perspective of Lévi-Strauss, the factors that are discovered in the tradition of East Asia, namely, the Yeongdae of King Wen and the mental yeongdae of Zhuangzi can combined with consistency and established in the doctrinal system of Daesoon Jinrihoe. Such an attempt refers to bricolage which re-creates the traditional concepts of the past. In this regard, the concept of invented tradition coined by Eric Hobsbawm could also be used to conclude that the Yeongdae (the shrine of gods) of Daesoon Jinrihoe can be expressed as an invented Yeongdae, which transcends the existing categories of material yeongdae and non-material yeongdae.

• Journal of the Daesoon Academy of Sciences
• /
• v.25_2
• /
• pp.1-43
• /
• 2015

Daesoonjinrihoe perceives that human suffering is caused not only by mental factors but also by the cosmic principle of Mutual Overcoming more fundamentally. The relationship influenced among all things in the universe is Mutual Beneficence and Mutual Overcoming. If these relations are properly cooperated in harmony, all things will reveal their energetic existence in a balanced state, however, if one side, particularly, Mutual Overcoming becomes excessive, indeed, it will cause trouble. That is, the sentient beings that are inclined to excessive Mutual Overcoming rather than indispensable Mutual Overcoming make grievances among themselves and cumulate them. In the end, heaven and earth lose its constant Way[常道], leading the sentient beings to all kinds of agonies. However, it may be a problem if every agony is depicted with Mutual Overcoming, that is, one single fixed frame, because Mutual Overcoming has to be interpreted diversely according to the circumstances. Thus, it is not possible to explain precisely about the agony if not understanding its spectrum. This study analyzed the ways how Daesoonjinrihoe explains the aspects of reasons and solutions to a variety of agonies. In the Supreme Scripture of Daesoonjinrihoe, the reasons for agony vary: first, it is caused by Mutual Overcoming of the cosmos itself, which is irrelevant to human beings. Secondly, man can be victimized because of Mutual Overcoming caused by man. Thirdly, there is a case of a victim who is damaged due to Mutual Overcoming caused by the other. Fourthly, man can be victimized because of Mutual Overcoming caused by someone else's unintended deeds. Fifthly, there is a case of man having agony in return when he, as a perpetrator, hurt others or resolve his inappropriate desires. Sixthly, man's deed unintendedly became a sin and have agony in return. Seventhly, man can be a self-perpetrator, conceiving vain desire, obsession and grievance. Eightly, there is a case of man having agony during enforcement of the law or practice of justice. Ninthly, man needs to endure agony during self-cultivation, enacting Reordering of the Universe(天地公事), ritual practice, promotion of fortune, and test. However, it is important to make sure that the reason for agony can interact with not only one but also diverse models in real situation. These nine models are included in the category of Mutual Overcoming; but, these cannot be classified in a single term, Mutual Overcoming because much information will be hidden, only to make it difficult to explain about agony more precisely. There are some characteristic observed in the concept of agony in Daesoonjinrihoe as follows: first, reasons for agony are caused by Mutual Overcoming although Mutual Overcoming can be interpreted differently according to the circumstances. Secondly, Daesoonjinrihoe makes a positive valuation for some agony. Thirdly, the solution to overcome a agony is brought to a conclusion, that is cultivation practice of Daesoonjinrihoe. Fourthly, the experience of agony and solution in Daesoonjinrihoe sometimes lie in the unit of family beyond individual. Fifthly, in the painful situation resulted from vain desire and obsession, Daesoonjinrihoe suggests a solution called Mutual Beneficence. That is, it emphasizes not only self-control but also active practice of considering others.