• KOREAN JOURNAL OF CROP SCIENCE
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• v.40 no.1
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• pp.98-102
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• 1995

Popped popcorn generally have a regular popping direction and typical shape. But the reason and mechanism are not clear yet. This experiment was carried out to investigate the shape moulding factor of popped popcorn. Pericarp thickness of tip-cap section of kernels is slightly thicker than that of top section and this fact provides the important information to the reason. Popping starts when the moisture pressure of heated popcorn is increased and reaches at the critical pressure. Therefore, in the same moisture pressure conditions, top sections are bursted first because their pericarp section is thinner than that of tip-cap section. At the very moment tip-cap sections pull down the top sections of peri carp as bi-metal does. So kernels which removed tip-cap section showed the irregular popping shape because they lost the tip-cap pericarp function. How-ever, kernels which removed embryo showed the typical popping shape but their popping volume was small due to emition and shortage of critical moisture pressure. But kernels which removed the whole pericarp and top pericarp were not popped at all because moisture was entirely emitting out of kernels. These results suggest that the shape moulding factor of popped popcorn is the pericarp thickness differences between the top and tip-cap section of kernels.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.2
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• pp.131-138
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• 1996

Soil crusting and hardening as a result of drying after rainfall were examined in relation to seedling emergence by employing five rice varieties (Italiconaverneco, Dadazo, and Galsaekggarakshare, Dongjinbyeo and Sumjinbyeo) and two barnyardgrass species (E. crus-gallj var. oryzjcola and E. crus-galli var. praticola). Sandy loam, loam, and silty loam soils were used. The artificial rainfall of 0, 20 and 40mm were applied after sowing and covering with 4cm soil. Air temperature and solar radiation averaged over 9 days after seeding was 31.3$^{\circ}C$ and 16.9MJ /m$^2$, respectively. Soil strength increased rapidly by drying after artificial rainfall, being greater in soils with greater amount of clay and artificial rainfall. Soil crust was formed on the surface with artificial rainfall in all soils tested. However, soil crust was exfoliated in silty loam and loam soil, and lifted as seedlings emerge. Seedling emergence of rice varieties was decreased by rainfall treatments. Sumjinbyeo and Dongjinbyeo showed much poorer seedling emergence especially in sandy loam soil than the other varieties. Poor seedling emergence of these varieties might have been caused by delayed seedling emergence which had made them expose to greater soil strength. Seedling emergence of barnyardgrasses showed no differences among soil textures and rainfall treatments, because they emerged rapidly before soil crusting and hardening were proceeded enough to hamper seedling emergence. Seedling emergence of Sumjinbyeo and Dongjinbyeo decreased with increasing soil strength averaged over 3 days to 5 days after seeding, being lowered to 80% at soil strength of 1.0kg/cm$^2$ and to 50% at 1.7kg/cm$^2$. Emergence speed of barnyardgrasses was faster than rice varieties, and E. crus-galli var. oryzjcola than E. crus-galli var. praticola. Italiconaverneco and Dadazo showed faster emergence in rice varieties. Galsaekggarakshare showed slower emergence speed than these two varieties with similar seedling emergence percentage. The greater and faster elongations of mesocotyl and incomplete leaf in rice, and of mesocotyl in barnyardgrass were the characteristics responsible for higher seedling emergence rate in the environment examined.

• The Journal of Engineering Geology
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• v.33 no.1
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• pp.105-119
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• 2023

Water supply is decreasing due to climate change, and coastal and island regions are highly dependent on groundwater, reducing the amount of available water. For sustainable water supply in coastal and island regions, it is necessary to accurately diagnose the current condition and efficiently distribute and manage water. For a precise analysis of the groundwater flow in the coastal island region, submarine fresh groundwater discharge was calculated for the Seongsan basin in the eastern part of Jeju Island. Two methods were used to estimate the thickness of the fresh groundwater. One method employed vertical interpolation of measured electrical conductivity in a multi depth monitoring well; the other used theoretical Ghyben-Herzberg ratio. The value using the Ghyben-Herzberg ratio makes it impossible to accurately estimate the changing salt-saltwater interface, and the value analyzed by electrical conductivity can represent the current state of the freshwater-saltwater interface. Observed parameter was distributed on a virtual grid. The average of submarine fresh groundwater discharge fluxes for the virtual grid was determined as the watershed's representative flux. The submarine fresh groundwater discharge and flux distribution by year were also calculated at the basin scale. The method using electrical conductivity estimated the submarine fresh groundwater discharge from 2018 to 2020 to be 6.27 × 10⁶ m³/year; the method using the Ghyben-Herzberg ratio estimated a discharge of 10.87 × 10⁶ m³/year. The results presented in this study can be used as basis data for policies that determine sustainable water supply by using precise water budget analysis in coastal and island areas.

• Journal of Service Research and Studies
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• v.13 no.3
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• pp.160-171
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• 2023

The importance of design utilization as a method for establishing policies and services in the public sector is increasing. Accordingly, Korea has introduced a public service design development method and has implemented and operated a national design group for consumer-centered policy development since 2014. This study analyzes the cases of the National Design Group to expand the use of design in the public sector and propose sustainable public service design strategies. The time range of this study is from 2014 to 2021, when the National Design Group was implemented, and the content is limited to tasks that can be found on the Gwanghwamun 1st Street website and the National Design Group casebook. This study was conducted as follows. First, we looked for implications for how to use and identify the role of design in the public policy development stage by referring to the literature on design policy and public service design, and second, based on major implications, we analyzed the task name and contents. Based on literature studies and case studies, we found implications that design can be used in various public fields, and the policy implications proposed to expand the use of sustainable design in the public sector are as follows. First, by raising awareness of service design in public policies and services, it continues to provide opportunities for the use of design to expand as a role that leads to voluntary behavioral changes of citizens beyond civic participation. Second, more active publicity is needed for the successful cases of the National Design Group, a product of the active use of public service design. Third, a more specific evaluation system should be introduced to verify the effectiveness and effectiveness of public service design. Through this, it is expected that it will greatly contribute to reducing the error in policy delivery and realizing citizen-centered public services by utilizing design for various problems facing our society.

• Journal of the Korea Society for Simulation
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• v.18 no.3
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• pp.73-82
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• 2009

Due to the many advantages including low price, low power consumption, and miniaturization, the CMOS camera has been utilized in many applications, including mobile phones, the automotive industry, medical sciences and sensoring, robotic controls, and research in the security field. In particular, the 360 degree omni-directional camera when utilized in multi-camera applications has displayed issues of software nature, interface communication management, delays, and a complicated image display control. Other issues include energy management problems, and miniaturization of a multi-camera in the hardware field. Traditional CMOS camera systems are comprised of an embedded system that consists of a high-performance MCU enabling a camera to send and receive images and a multi-layer system similar to an individual control system that consists of the camera's high performance Micro Controller Unit. We proposed the SL-AVS (Small Size/Low power Around-View System) to be able to control a camera while collecting image data using a high speed synchronization technique on the foundation of a single layer low performance MCU. It is an initial model of the omni-directional camera that takes images from a 360 view drawing from several CMOS camera utilizing a 110 degree view. We then connected a single MCU with four low-power CMOS cameras and implemented controls that include synchronization, controlling, and transmit/receive functions of individual camera compared with the traditional system. The synchronization of the respective cameras were controlled and then memorized by handling each interrupt through the MCU. We were able to improve the efficiency of data transmission that minimizes re-synchronization amongst a target, the CMOS camera, and the MCU. Further, depending on the choice of users, respective or groups of images divided into 4 domains were then provided with a target. We finally analyzed and compared the performance of the developed camera system including the synchronization and time of data transfer and image data loss, etc.

• Journal of the Daesoon Academy of Sciences
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• v.44
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• pp.1-52
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• 2023

Incantations are reflected in the fundamentals of the Daesoon faith system and are, thus, key to its understanding. Jeungsan, the yeonwon (fountainhead, 淵源) of the Daesoon faith, created new incantations or transformed existing ones that had been used in old religious traditions such as Buddhism and Daoism. However, there has been no in-depth academic research on Jeungsan's incantations until now. This study aims to academically clarify the incantatory archetypes of Jeungsan's incantations based on documents published until the 1970s. Jeungsan's incantations are then compared to those of Mugeuk-do (Limitless Dao) in the 1920s and Taegeuk-do (Great-Ultimate Dao) in the 1950s. Jeongsan's transformed incantations are analyzed through this process. Jeongsan reflected the faith system in Jeungsan's incantations during the period of Mugeuk-do. He transformed the incantations to achieve his goal and realize his wishes by arranging terms that referred to himself before the optative words of the incantations. Jeongsan made several changes to the incantations in the 1950s. First, the majority of incantations used in Mugeuk-do were discarded. This meant making partial changes to the faith system by reflecting awareness because the corresponding incantations were no longer necessary as the Degree Number calibrated by Jeungsan had been realized. Second, Jeongsan organized the incantations in use and institutionalized their instructions. This reflected the essential doctrinal system of the Daesoon faith, namely the completion of the true dharma by Jeongsan. Considering this doctrine, that is, the Fifty Year Holy Work (五十年工夫), the true dharma can be presumed to have been realized before the death of Jeongsan. Accordingly, the institutionalizing and organizing of the incantations were indispensable until the mid-to-late 1950s. Jeongsan, the founder of the Daesoon order, posited himself as the successor of religious orthodox lineage and as the figure who would complete the true dharma by realizing the Degree Number calibrated by Jeungsan. Therefore, Jeongsan interpreted Jeungsan's incantations to be a rough sketch of the Daesoon faith system that had been drawn for him in advance by Jeungsan. Accordingly, Jeongsan transformed Jeungsan's incantations and used them to realize the Degree Number, which Jeungsan had planned. Simultaneously, Jeongsan declared that he would fulfill the Degree Number and establish the true dharma by changing those incantations.

• Korean Journal of Environment and Ecology
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• v.37 no.4
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• pp.273-288
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• 2023

Although many studies have been conducted on techniques and effects that can be applied to forest meditation in domestic forest healing meditation research, there has been little research on the space where forest meditation takes place. Nevertheless, a meditation space is not just a place concept but a forest environment element responsible for the healing function of a forest, i.e., a place containing healing factors, and can be an essential clue to the healing mechanism. Therefore, to determine whether a healing forest meditation space is suitable for meditation, this study selected the attribute items of the meditation space using the Delphi expert survey and then surveyed the user satisfaction of the healing forest meditation space using the IPA (Importance Performance Analysis) technique. The survey was conducted from August to November 2022, targeting 315 adults who used the forest meditation space at the National Center for Forest Therapy, the Saneum Healing Forest, and the Jathyanggi Pureunsup Arboretum in Gyeonggi Province. The result of the IPA analysis showed the average satisfaction with the forest meditation space was relatively high at 4.33 points on a 5-point Likert scale (4.33 points for the National Center for Forest Therapy, 4.34 points for the Saneum Healing Forest, and 4.37 points for the Jathyanggi Pureunsup Arboretum), indicating that the three healing forest meditation spaces were suitable for forest meditation. Satisfaction with the "Sounds of nature" was high in all three forests. On the other hand, all three forests showed a relatively low satisfaction with "Quietness," indicating it to be a priority problem to be addressed. Also, an open-ended questionnaire survey showed that the mediation space's natural elements, such as natural sounds, scenery, air, forest spaces, and scents, had a higher positive impact on meditation satisfaction than artificial elements, such as facilities. Therefore, it is essential to secure sound resources such as the sound of water and birds around the meditation space, and it is also necessary to consider ways to create a meditation forest in an independent area to avoid encounters with visitors and allow only participants in the forest healing meditation program to enter to increase satisfaction with forest meditation.

• Journal of Practical Agriculture & Fisheries Research
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• v.15 no.1
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• pp.95-105
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• 2013

This study has been conducted to investigate the effect of Urea and K₂SO₄ treatment at stone hardening stage and 20 days before harvest on soil chemical properties, mineral nutrient concentration and quality of 'Mibaekdo' fruit peach. K concentration after Urea and K₂SO₄ treatment in soil was increased significantly by Urea 162g+K₂SO₄ 188g/tree(standard amount) treatment at stone hardening stage, K₂SO₄ 1.0% tree-spray, Urea 81g+K₂SO₄ 94g/tree(half amount), Urea 162g+K₂SO₄ 188g/tree and Urea 324g+K₂SO₄ 376g/tree(double amount) soil treatment before harvest 20 days compared to control. T-N, K and Ca concentration in leaf was increased significantly by all treatment. but Na concentration in leaf was increased by Urea 0.5% and K₂SO₄ 1.0% tree-spray treatment before harvest 20 days. T-N concentration in fruit skin was increased significantly by standard amount soil treatment, which decreased by K₂SO₄ 1.0% tree-spray and half amount soil treatment. T-N, K and Ca concentration in fruit flesh(1~10mm depth flesh from peel) were increased markedly by all treatment excepted Urea 0.5% tree-spray. The leaf weight at harvest was increased markedly by Urea 0.5% tree-spray, standard amount and double amount treatment before harvest 20 days. Fruit weight was increased significantly by standard amount compared to all treatment. Red fruit skin(Hunter a value) progress was effective by K₂SO₄ tree-spray, half amount and double amount treatment before harvest 20 days. Fruit SSC was increased significantly by Urea 0.5% and K₂SO₄ tree-spray before harvest 20 days, standard amount treatment at stone hardening stage compared to control.

• Journal of Practical Agriculture & Fisheries Research
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• v.16 no.1
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• pp.55-66
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• 2014

This study has been conducted to investigate the treatment time and concentration of GA₃ solution dipping for labor saving in 'Campbell Early' grapevine. The rachis growth at harvest was reduced by GA₃ solution dipping before 5 days flowering, and increased significantly by GA₃ solution dipping treatment at full bloom and after 5 days full bloom. GA₃ 5, 10, 20 mg·L^-1 dipping treatment before 5 days flowering and GA₃ 20 mg·L^-1 treatment of full bloom and after 5 days full bloom showed a rachis twist phytotoxicity symptom. The optimum GA₃ concentrations for rachis growth promotion without phytotoxicity were 5 mg·L^-1 and 10 mg·L^-1. The degree of compact berry, bloom, skin color, SSC and acidity at harvest by GA₃ solution dipping treatment time between concentration were not different from those of control. But the fruit berry weight was decreased by before 5 days flowering treatment when compared with control. There were no differences in full bloom and after 5 days full bloom treatment. The occurrence percent of berry cracking at before 5 days flowering and after 5 days full bloom treatment were significantly increased by GA₃ treatment. The bitter rot occurrence of berry at harvest was not affected by GA₃ treatment. Total rachis length of fruit cluster was increased by full bloom and 5 days after full bloom treatment. The length of rachis increased without reference to them position at full bloom and 5 days after bloom treatment. Accordingly, GA₃ 5 mg·L^-1 solution dipping treatment at full bloom and 5 days after full bloom were can be effectively for rachis growth promotion.

• Journal of the Daesoon Academy of Sciences
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• v.27
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• pp.1-34
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• 2016

This paper aims to understand how Daesoonjinrihoe perceives the Later World. Daesoonjinrihoe supports to establish an earthly paradise through the re-creation of the real world unlike other religions which tend to relegate ultimate fulfillment to the afterlife. In other words, Daesoonjinrihoe endeavors to achieve their objectives in the human world rather than outside of it in a potential act of escapism. The new religions in Korea have been characterized by ethnocentrism and doctrines which present Koreans as the new chosen people by emphasizing Korea's crucial role in world leadership. However, the doctrine of Daesoonjinrihoe differ with other new religions of Korea in this regard as its purpose is to redeem the whole world. Daesoonjinrihoe proposes an open embrace of the religious diversity found in Korean society. Daesoonjinrihoe argues that the Later World has not come yet, even though the Former World is over and progress towards the Later World has already been set in motion. The meaning of human nobility is akin to anthropocentricity. According to a variety of myths and legends, animals and supernatural often attempt to become human. Moreover, it would not be an overstatement to assert that the re-creation of the real world and the Daesoon concept of human nobility correspond with these myths and legends. There were not definite interpretations regarding heaven in Confucianism historically, yet Daesoonjinrihoe differentiates clearly that heaven and Sangje are cosmic structures. Buddhism perceives that heaven separately exists as a cosmic structure and that Buddha is a transcendental entity, however; that entity is not accessible for intercession. On the contrary, the ways to save the world have been adduced in Daesoonjinrihoe. In addition, the earthly paradise of the Later World has likewise been introduced. Specifically, it is Sangje that opens the door to that paradise. Unresolved issues in the formation of a world view still persist. There are no shortage of studies on the notion of gods or divine beings, however; most of these studies focus on genealogical classification, forms, functions and other such topics. The concept of god, ghost, or soul does not seem to have been clearly defined in these studies nor has the relationship among these entities and humanity been satisfactorily examined. For example, if human beings become either gods or divine beings, questions regarding divine beings who have acted as protectors or guardians of human beings then arises. The Daesoon cosmology should be specifically compared to cosmology in Daoism. By conducting additional studies such as a comparative research with Daoism, it will be possible to interpret mantras and Daoist art as they appear in Daesoonjinrihoe in a thought-provoking way which can in turn be compared with other religions.