• Journal of the Daesoon Academy of Sciences
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• v.36
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• pp.299-331
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• 2020

In Daesoon Jinrihoe, the Supreme God descended into the mortal world by incarnating as Kang Jeungsan to save the world from imminent disaster. Daesoon Jinrihoe is regarded by some Chinese scholars as a new Korean Daoism, and Jo Jeong-san, the Lord of the Dao in Daesoon Jinrihoe, revealed the Supreme God's name to "Gucheon Eungwon Noeseong Bohwa Cheonjon Kangseong Sangje." Comparative studies are often conducted to highlight the similarities between this god and the nearly identically named god in Chinese Daoism. However, this Chinese god is only a god of natural phenomena and has no previous connections to descension into the world via human incarnation. My research has determined that the closest basis for comparison would be Emperor Huizong within the context of Northern Song Dynasty Daoism. In the Daoism of that time period, he was understood to be the Supreme God who incarnated as a human to save the world. Borrowing Eliade's Phenomenology of Religion, this paper has discovered that core archetypes of these two godheads are different due to their different soteriological missions. In order to solve the grievances among humans, divine beings, heaven, and the afterworld, Kang Jeungsan actualized the Earthly Paradise of Later World. Drawing on the archetypal notion of an Original Time, he reshaped the world into the beginning of chaos to completely eliminate the past, and to create a fundamentally and qualitatively new era. On the other hand, Emperor Huizong tried to absorb what he viewed as heretical Buddhism into something sacred that could be used to save people from its harm. He established a hierarchy radiating from the archetypal notion of the Center of the Universe, and he cosmosized Buddhism, which he viewed as barbaric, into that order. Their core godheads mainly show differences in terms of time and space. Additionally, their extended sub-godhead symbols are quite different. Emperor Huizong, like the common supreme gods of other religions, established law of order, and then retreated as the symbol of heaven, the abdicated god. His divine power was specialized as Lin Lingsu's symbol of natural phenomena. Kang Jeungsan was completely different. He always proved his power over the three realms through different symbols. The main symbols he used were the moon for healing and resurrection, water for establishing order from chaos, and light for enabling secular individuals to experience sacred profundity.

• Journal of the Korean Society of Propulsion Engineers
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• v.26 no.4
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• pp.54-63
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• 2022

A 3-tonf class liquid rocket engine that powers the upper stage of a small launcher and lifts 500 kg payload to 500 km SSO is designed. The small launcher is to utilize the flight-proven technology of the 75-tonf class engine for the first stage. A combination of liquid oxygen and liquid methane has been selected as their cryogenic states can provide an extra boost in specific impulse as well as enable a weight saving via the common dome arrangement. An expander cycle is chosen among others as the low-pressure operation makes it robust and reliable while a specific impulse of over 360 seconds is achievable with the nozzle extension ratio of 120. Key components such as combustion chamber and turbopump are designed for additive manufacturing to a target cost. The engine system provides an evaporated methane for the autogenous pressurization system and the reaction control of the stage. This upper stage propulsion system can be extended to various missions including deep space exploration.

• The Korean Journal of Air & Space Law and Policy
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• v.32 no.2
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• pp.189-217
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• 2017

Declaration of Air Defense and Identification Zones started with the United States in 1950, which was followed by declaration of KADIZ by the Republic of Korea in 1951. Initial ADIZ were solely linked with air defense missions, but their roles have changed as nations around the globe manifested a tendency to expand their influence over maritime resources and rights. In particular, China declared ADIZ over the East China Sea in October 2013 and forced all passing aircraft to submit flight plan to ATC or military authority, saying failure of submission will be followed by armed engagement. China announced it would declare another zone over the South China Sea despite the ongoing conflict in the area, clearly showing ADIZ's direct connection with territorial claim and EEZ and that it serves as a zone within which a nation can execute its rights. The expanded KADIZ, which was expanded in Dec 15, 2013 in response to Chinese actions, overlaps with the Chinese ADIZ over the East China Sea and the Japanese ADIZ. The overlapping zone is an airspace over waters where not only the Republic of Korea but also of China and Japan argue to be covering their continental shelf and EEZ. Military conventions were signed to prevent contingencies among the neighboring nations while conducting identifications in KADIZ, including the overlapping zone. If such military conventions and practice of air defense identification continue to be respected among states, it is under the process of turning into a regional customary law, although ADIZ is not yet recognized by international law or customary law. Moreover, identification within ADIZ is carried out by military authorities of states, and misguided customary procedures may cause serious negative consequences for national security since it may negatively impact neighboring countries in marking the maritime border, which calls for formulation of operation rules that account for other state activities and military talks among regional stake holders. Legal frameworks need to be in place to guarantee freedom of flights over international seas which UN Maritime Law protects, and laws regarding military aircraft operation need to be supplemented to not make it a requirement to submit flight plan if the aircraft does not invade sovereign airspace. Organizational instructions that require approval of Chairman of Joint Chiefs of Staff for entrance and exit of ADIZ for military aircraft need to be amended to change the authority to Minister of National Defense or be promoted to a law to be applicable for commercial aircraft. Moreover, in regards to operation and management of ADIZ, transfer of authority should be prohibited to account for its evolution into a regional customary law in South East Asia. In particular, since ADIZ is set over EEZ, military conventions that yield authority related to national security should never be condoned. Among Korea, China, Japan and Russia, there are military conventions that discuss operation and management of ADIZ in place or under negotiation, meaning that ADIZ is becoming a regional customary law in North East Asia region.