• Korean Journal of Mineralogy and Petrology
• /
• v.33 no.4
• /
• pp.463-475
• /
• 2020

Presence of microplastics in soil and groundwater has recently been reported and environmental concerns are raised as to the plastic pollution. In the subsurface environment, clay minerals and metal oxide minerals are commonly found as finely dispersed states. Because the minerals have high sorption capacities for diverse pollutants, interactions with mineral surface play an important role in the transport of microplastics in groundwater. Accordingly, environmental mineralogy investigating the interactions between microplastics and mineral surfaces is the essential research area to understand the fate and transport of microplastics in the subsurface environment. The microplastic-mineral surface research requires molecular- to nano-scale analyses to be able to probe the relatively weak interactions between them. The current report introduces a nano-scale analysis tool called quartz crystal microbalance (QCM) that can measure the sorbed/desorbed mass of nanoplastics on mineral surfaces at the level of a few nanograms (~10-9 g). This report briefly reviews the main principles in the QCM measurement and discusses applications of QCM to the environmental mineralogy research.

• The Journal of Korean Philosophical History
• /
• no.53
• /
• pp.165-190
• /
• 2017

This thesis is for the analysis of the relationships between Mozi's 'Heaven and Man' through the inspection of meaning and emphasis in his three books, 'Heaven's Will', 'Verification of Ghost' and 'Indeterminism'. According to the previous study, the Heaven's Will and Verification of Ghost are justify Mozi's theory of theistic stance with the Heaven's authority. And in case of the 'Indeterminism', there seems to be positive and rational way of awareness and it's thought to be atheistic stance. It is thought that there is a rule of action which is about the personality principle, and it suggest that how the government rule the country, and how the people lead a life. And it is the ghost that give prize or punishment when they did something according to this principle or not. So, men should do their best in actual life to meet the heaven's will. Because my fate is not decided by heaven's order but my own action. And it is thought that the main point of 'the indeterminism' is about Heaven helps those who do independent and active efforts. In short, 'the Heaven's Will', Verification of Ghost' and 'Indeterminism' are neither contradiction nor conversion form theism to atheism. Mozi is thought to divide clearly about ghost's works and people's works, and it is expressed explicitly in his works 'Heaven's Will', 'Verification of Ghost' and 'Indeterminism'.

• (The)Study of the Eastern Classic
• /
• no.43
• /
• pp.183-207
• /
• 2011

This study finds aesthetic elements and examines their aesthetic sense focusing on the melody of the piri in the completed Jongmyojeryeak with various ideational backgrounds from the views different from the aesthetic sense of Jongmyojeryeak that has been conducted so far. Jongmyojeryeak is to hold a memorial service at the place where the godship of the line of kings and queens in Joseon is set. It is the crystal of Confucian memorial ritual and representative cultural heritage of ancestral ritual culture and is designated as No 1 of national chief, intangible cultural heritage in 1964. Also, on May 18th, 2001, it was registered first in Korea as 'Masterpieces of the Oral and Intangible Heritage of Humanity' designated by UNESCO and was recognized of its superiority. It is not only a representative cultural heritage of ancestral ritual culture having fate with Joseon Dynasty for a long period but also has been recognized as the essence of our music compiling the holistic beauty of artistic forms according to music, songs, and dance created by our ancestors. Also, it has as its background the traditional thoughts including the Confucian thought as well as Yeak thought, Yin-Yang School, Samjae thought (三才思想), and Palgoe thought (八卦思想). This Jongmyojeryeak internalizes landscape beauty, Yojang beauty, natural beauty, magnificent beauty, and harmonious beauty. Landscape beauty can be found in Huimun and Jeonpyehuimun. Yojang beauty is the figure that is only shown in Jeongdaeup. Natural beauty is the skilled performance technique shown in the melody of variations and is connected to natural creation. It is well shown in Huimun and Jeonpyehuimun. Magnificent beauty is well shown in the melody of Botaepyeong movement. And harmonious beauty is the harmonization of dischord in Jongmyojeryeak and is well shown in Jeongdaeup's Somu distinctively showing its aesthetic sense from the view of natural, harmonious beauty in its music.

• (The)Study of the Eastern Classic
• /
• no.71
• /
• pp.205-229
• /
• 2018

This article proceeds to scrutinizing a oral tradition called the story of ruining one's family by daughter-in-law's cutting-condemnation conducive to any estimation of Koreans' religious mentality. This oral tradition begins with mischievous behaviors of daughter-in-law. She cut away any materials, which a vagabond monk of Buddhism identified as a source of solacing numberless visitors to her house. Tired of serving all the visitors, she cut away the material. It caused her parents-in-law's house to be collapsed. At a first glance, the daughter-in-law appears to be blamed for the collapse. Interestingly, no one cannot be blamed for the misfortune. A face value of the text does not show that the fate of misfortune comes from any ethical misconduct and its posterior mishandling. Behind this oral tradition, by the way, lies the consciousness that relates misfortune with a ceremony of cutting away any unique material; cutting away any material, cutting away the trend of coming visitors, and cutting away the mood of prosperity becomes identical. The thematic mentality of the text reveals a religious consciousness of seeing human beings' life to be identical with nature. This oral tradition must have focused on the importance of a harmonious relationship between human beings and nature.

• Journal of the Daesoon Academy of Sciences
• /
• v.36
• /
• pp.267-298
• /
• 2020

The purpose of the paper is to analyze the developmental background and practical approaches to the arts of the Dao (道術 dosul) in Daesoon Jinrihoe (大巡真理會) by tracing this concept back to its source and comparing and contrasting Daesoon Jinrihoe's usage of 'arts of the Dao' with the usage found in traditional Daoism. The paper is divided into a preface, conclusion, and two body sections. Especially significant discoveries appear in the second and third sections. In the second section, the Daoist concept of Alterable and Unalterable Degree Numbers (運度定數 yundudingshu, 'degree numbers' suggesting 'fate' or 'destiny') allows for a comparison between the Reordering Works of Heaven and Earth (天地公事 cheonjigongsa) from Daesoon Jinrihoe's The Canonical Scripture (典經 jeon-gyeong) and the Opening of Calamities to Save Humanity (開劫度人 kaijieduren) in Daoism. Here discourse can be provided regarding the cause of calamities (劫 'jie' in Chinese and 'geop' in Sino-Korean). Additionally examined are the deep grievances between divine beings and humans and the cosmic cycles of growth and decay as both of these relate to the reason for calamities. As for the resolving of calamities, there are two differing perspectives proposed by Daesoon Jinrihoe and traditional Daoism. Daesoon Jinrihoe believes that Kang Jeungsan (姜甑山) led changes and renewal through the Reordering Works of Heaven and Earth. In this context, clergy and laity play roles as assistants. However, Daoism emphasizes gaining merit from the recitation of scriptures and the collective participation of immortals rather than relying completely upon divine intervention from the Celestial Worthy of the Primordial State (元始天尊 yuanshi tianzun). In the third section, 'The Origin and Application of the Arts of the Dao (道術 daoshu),' analysis is provided regarding the origin and connotation of five directional generals (五方將 wufangjiang), the twenty-four generals (二十四將 ershijiang), the twenty-eight generals (二十八將 ershibajiang), and the forty-eight generals (四十八將 sishibajiang). Likewise examined is the relationship between the arts of the Dao in The Canonical Scripture and Thunder Rites in the Shen Xiao Lineage (道教神霄雷法 daojiao shenxiao leifa) of Daoism. Lastly, some points are made about the operation of two ceremonies: The Ceremony of Transformation and Pacing (遁甲步罡儀式 dunjiabugangyishi) and Divination through the Formula Disc of the Six Ren Gods (六壬式盤占卜 liuren shipanzhanbu).

• Korean Journal of Mineralogy and Petrology
• /
• v.34 no.4
• /
• pp.265-275
• /
• 2021

Findings of microplastics and nanoplastics from diverse natural environments have increased demand for research of the fate and transport of the potentially toxic plastic particles in soils and groundwater. Weathering of microplastics would generate a significant amount of nanoplastics, but nanoplastics research is scarce because of technical difficulties in detecting nanoplastics in environments and analyzing nanoplastics adsorption to mineral surfaces. In the current study, we tested a possibility using quartz crystal microbalance (QCM) for application to nanoplastics adsorption analysis on mineral surfaces. In silica (SiO₂)-packed column experiments, a measurable adsorption capacity for polystyrene nanoparticles often requires injection of unrealistically high ionic strengths or concentrated nanoplastic particles. The current test shows that QCM can measure polystyrene nanoplastics adsorbed onto SiO₂ surface under the low ionic strengths and nanoplastics concentrations, where typical column experiments cannot. QCM is a promising tool for understanding the interaction between nanoplastics and mineral surfaces and thus transport of nanoplastics in soils and groundwater.

• Journal of the Korea Convergence Society
• /
• v.12 no.5
• /
• pp.191-196
• /
• 2021

This paper proposes to strengthen the technological capabilities of small and medium enterprises on the establishment of a component standardization system and the localization of parts, which is the basis of the marine wind industry. The wind industry is a natural energy industry that countries around the world are paying attention to, and continues to invest and research and development. In particular, most companies are focusing on research and investment in component development, the smallest unit. Therefore, it is believed that we should focus on the three most fundamental and underlying wind industry, an eco-friendly energy industry that could determine the fate of the nation in the future. First, an understanding of the roadmap for standardization should be prioritized. Second, it is necessary to establish a domestic standardization of international standards according to domestic conditions. Third, localization of high value-added single products and components should be achieved by lowering dependence on overseas imports. In the future, it is hoped that the wind industry, centered on small and medium-sized enterprises, will become a solid-based national industry and be completed as a national infrastructure leading the global wind market.

• Journal of Korean Society of Water and Wastewater
• /
• v.36 no.2
• /
• pp.107-119
• /
• 2022

The frequent detection and occurrence of micropollutants (MPs) in aquatic ecosystems has raised public health concerns worldwide. In this study, the behavior of 50 MPs was investigated in three different domestic wastewater treatment plants (WWTPs). Furthermore, the Kruskal-Wallis test was used to assess the geographical and seasonal variation of MPs in the WWTPs. The results showed that the concentrations of 43 MPs ranged from less than 0.1 to 237.6 ㎍ L^-1, while other seven MPs including 17-ethynylestradiol, 17-estradiol, sulfathiazole, sulfamethazine, clofibric acid, simvastatin, and lovastatin were not detected in all WWTPs. Among the detected MPs, the pharmaceuticals such as metformin, acetaminophen, naproxen, and caffeine were prominent with maximum concentrations of 133.4, 237.6, 71.5, and 107.7 ㎍ L^-1, respectively. Most perfluorinated compounds and nitrosamines were found at trace levels of 1.2 to 55.3 ng L^-1, while the concentration of corrosion inhibitors, preservatives (parabens), and endocrine disruptors ranged from less than 0.1 to 4310.8 ng L^-1. Regardless of the type of biological treatment process such as MLE, A2O, and MBR, the majority of pharmaceuticals (except lincomycin, diclofenac, iopromide, and carbamazepine), parabens (except Methyl paraben), and endocrine disruptors were removed by more than 80%. However, the removal efficiencies of certain MPs such as atrazine, DEET, perfluorinated compounds (except PFHxA), nitrosamines, and corrosion inhibitors were relatively low or their concentration even increased after treatment. The results of statistical analysis reveal that there is no significant geographical difference in the removal efficacy of MPs, but there are temporal seasonal variations in all WWTPs.

• Korean Journal of Ecology and Environment
• /
• v.55 no.4
• /
• pp.376-389
• /
• 2022

Despite the consumption of disinfectants have been increased by COVID-19 pandemic, the fate of the chemicals in aquatic food webs are still unclear. In order to understand the trophic transfer of the chemicals, the concentration of disinfectants including six benzalkonium chloride (BACs) and five didecyldimethylammonium chlorides(DDACs) were measured at the Geum (2020), Han (2021), and Yeongsan River (2021), before and after rainfall. The highest concentration of ∑BACs (mainly C12 and C14) and ∑DDACs (mainly C10 and C14) were observed in the Han River, followed by Yeongsan River, Geum River Estuary, and Gapcheon. After rainfalls, both concentration and detection frequency were decreased in all sites. Although the BAC and DDAC seems to be accumulated in organisms, they were bio-diluted rather than magnified in the aquatic food web with the biomagnification factor(BMF) of less than 1, trophic magnification slope (TMS) from -0.236 to 0.001, and trophic magnification factor(TMF) from 0.85 to 1.01.

• Journal of the Daesoon Academy of Sciences
• /
• v.28
• /
• pp.243-265
• /
• 2017

In this research, I define 'conscience' in Daesoon thought as the 'Restorative capability of returning to one's roots.' The notion of conscience forms a structure of separation and return, and it is connected to the ascetic aim of realizing human perfection. The conscience opens up potential possibilities and leads realization of potential possibilities by returning to the the point of origin. In the middle of separation and return, the conscience acts as the power of subjectivity possessed by human beings which is known as 'In jon (Human Nobility)' in Daesoon thought. The concept of conscience in Daesoon thought is connected with the subjectivity of In jon and free will as well as the character of subjectivity. This shares commonalities with critical thinking, modern characteristics, and the subjectivity of Heidegger's existentialism. Heidegger describes human fate from an existentialist vantage point using terms such as dasein, Geworfenheit, and Entwurf, and establishes human existence as an act of self-recovery from within in a lonely existential establishment. Daesoon thought implies that humanity is the root of ultimate reality, and this description is in sharp contrast with the thrownness (Geworfenheit) of Heidegger's subjectivity. Therefore, Daesoon thought can be seen as unique in its characterization of humanity as being connected to the root of ultimate reality, autonomy, and independent existence.