• Title/Summary/Keyword: stability theory

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Hosan Park Moon Ho's Idea of Morality and Viewpoint of Social Situation (호산(壺山) 박문호(朴文鎬)의 윤리사상과 시국관)

  • Chi, Kyo-Heon;Chi, Chun-Ho
    • (The)Study of the Eastern Classic
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    • no.33
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    • pp.335-358
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    • 2008
  • Hosan Park Moon Ho lived in the truly eventful era with keen competition of western powers, invasion of Japan, Confucianism based Movement against Western Power, Volunteer Army Movement against Japanese and etc. Therefore, his learning and idea could not help being related with such difficult environment of his country. Especially, his idea is directly related with such historical environment of his era in terms of his claims as follow: He thought that Christianity destroyed Korean traditional idea and good customs; he claimed that the nation should subdue the betrayers who were at the Japanese side and be revenged on the murder of the empress Myeongseong; and he advocated his own theory for civilization that the nation should be strictly against the imperial invasion of western powers but work for GaeMulSeongMu(開物成務: Achieving Everything through Enlightenment on Meaning of Everything) and HwaMin SeongSok(化民成俗: Forming Beautiful Customs by Educating the People). The problem that should be urgently solved that time was, first of all, to repel the invasion of Japan and western powers and to realize Confucianism based political ideal by scheming political and social stability and saving the people's livelihood from distress through such repelling.

Gubong Song IK- Pil's Thought of Statecraft(經世思想) (구봉 송익필의 경세사상)

  • Lee, Young-Ja
    • The Journal of Korean Philosophical History
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    • no.59
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    • pp.313-342
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    • 2018
  • Gubong Song Ik-pil could not behave according to his aspiration directly due to restrictions in his social standing. Despite that, he actually did so indirectly through either close friends or younger students by exhibiting 'cheobyeonwigwon (處變爲權) with the goal of jichijuui (至治主義). He insisted on people-oriented politics grounded on cheonmyeongsasang (天命思想) and also suggested the humbleness of the royal family and jinhyulchaek (賑恤策) based on love of the people. In addition, he promoted public welfare and stability to enhance patriotism and also insisted on the policy of strengthening national defense with seoeolgongsacheon (庶?公私賤)'s provision of military service through the enforcement of yangcheonjongbujongmobeop (良賤從父從母法). Also, according to the letter sent to Lee San-bo, he suggested public service ethics, for instance, personally, getting rid of ulterior motives, exhibiting diligence, integrity, and wisdom, and doing one's utmost to handle tasks fairly without causing any problems and externally, being actively involved in managing and utilizing persons of ability and also relieving the poor and managing masters as well. In brief, we can assume that Song Ik-pil's thought of statecraft (經世思想) is the concrete methodology to reach the politics of kingcraft called 'jichi (至治)' by stabilizing public welfare grounded on benevolent and benign administration. He is often compared to Jegalryang on account of his innate qualities and cleverness. He was equipped with the excellent capacity of gyeongse even referred to as the moju (謀主) of four persons, Yi Yi, Seong Hon, Jeong Cheol, and Lee Gwi, and harshly criticized as a slick evil (奸鬼), too. His gyeongsesasang, however, ended up being incomplete due to restrictions in his social status. He was a person who loved the people more than anyone else, kept suggesting innovative reform plans to stabilize the people's lives, and was capable of practicing them all. His ideal of jichi was left unfulfilled, however.

Performance Assessment of Navigation Seakeeping for Coastal Liquified-Natural-Gas Bunkering Ship (연안선박용 LNG 벙커링 전용선박의 내항성능 평가에 대한 연구)

  • Yi, Minah;Park, Jun-Bum;Lee, Chang-Hee
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.7
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    • pp.904-914
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    • 2020
  • Through the Ministry of Trade, Industry, and Energy, South Korea is trying to support the "Building Project for Liquified Natural Gas (LNG) Bunkering Ship," centered on the Korea Gas Corporation, while the Ministry of Maritime Af airs and Fisheries is pushing to construct an LNG bunkering terminal at Busan New Port. LNG bunkering ships are essential for supplying LNG fuel from the terminal to the ships, resulting in the need for safety operation procedures. Therefore, in this study, the stability of a coastal LNG bunkering ship operating from Busan New Port to the anchorage in Busan Port was assessed to investigate the need for operational procedures for coastal LNG bunkering ships. Seakeeping analysis of the LNG bunkering ship was performed for each significant wave height by combining the response amplitude operator from the ship motion analysis under the potential flow theory with the actual observed sea data for five years and Texel, Marsen, and Arsloe (TMA) spectrum suitable for the Busan coast. The results showed that the roll and horizontal acceleration were the main risks that affected the navigation seakeeping performance above a significance wave height of 2 m. The operational periods of the LNG bunkering ship ranged from 83.3% to 99.9% of the total observation period.

Information Technologies in the Formation of Environmental Consciousness in Future Professionals

  • Tomchuk, Mykhailo;Khrolenko, Maryna;Volokhata, Kateryna;Bakka, Yuliia;Ieresko, Oleg;Kambalova, Yanina
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.331-339
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    • 2022
  • The global process of transition from industrial to information society, as well as socio-economic changes taking place in Ukraine, require significant changes in many areas of state activity. It is especially connected with the reforms in the sphere of education. Today, national programs provide for the development of education on the basis of new progressive concepts, the introduction of the educational process of new pedagogical technologies and scientific achievements, the creation of a new system of information education, entrance of Ukaine into the transcontinental computer information system. Information technologies are qualitatively changing the key resources of development: this is no longer a space with fixed production, but primarily mobile finance and intelligence. They have a direct impact on the formation of personal growth, professional content and self-organization, emotional and psychological maturity and consciousness, and so on. One of the main factors in ensuring the stability and social education of the country's citizens is the culture of security, the formation and development of which is an urgent problem today. Comprehensive and systematic development of security culture will significantly increase the readiness of the population, the level of environmental, labor and patriotic education, reduce human losses, material damage from emergencies. Ecological education can be carried out more successfully only gradually and in accordance with the socio-psychological periods of one's development: kindergarten - school - college - university. The creation of such a system of environmental education should be enshrined as the basis of state environmental policy as a constitutional norm with the usage of information technology. Graduates of universities, who are the future of our country, after mastering the skills of basic environmental education must have a high level of environmental culture, which is, in turn, part of general human culture, and investigate environmental issues from the standpoint of their profession. It is known that with the help of environmental education the collective intelligence of society is formed, which can predict human activities and processes occurring in nature, and in some way to help with the elimination of crises. It is through environmental education that another system of human values is being formed, which places great emphasis on intangible wealth and solidarity, and great responsibility of humanity for the ecological state of the native country; provides a higher standard of living as a result of sustainable development, through the introduction of information technology in this system. To improve the quality of life, we need better knowledge, which must be implemented through information technology at the international level.

Analysis of Musical Characteristics and Changes in Different Periods on Yoon-Sang's Music (윤상의 곡에 나타난 음악적 특징과 시대별 변화)

  • Park, Ji-Eun;Chung, Jae-Youn
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.1
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    • pp.63-73
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    • 2021
  • This study aims to analyze music of Yoon-sang, as a part of musical research, which is the most fundamental approach among academic studies on Korean popular music. Yoon-Sang is a representative composer, who has gone through the 1980s to the present. The result of analysis of 21 songs created by Yoon-Sang showed that his songs are mostly characterized by tonal music, in which chord relationships develop focusing on keynotes. The reason why his music does not sound uniform pursuing stability is he properly added the progression of chromatic chords, based on diatonic chords and melodies. Dominant 7th chord and diminished 7th chord are used the most among diverse techniques adding chromatic colors. Along with these chords, chromatic intervals are used not only in chord progression but also in melodies. The successive, ascending or descending movement of the base line is his common composition and arrangement technique revealed in every song. One of formal changes with the stream of the times is that the number of measured in the pre-chorus and interlude that were of great importance in his songs of the 1990s decreased over time. With regard to harmonic changes, whereas modulation between parts was applied to his 2 songs created in the 2010s. Yoon-Sang's music had one strong tonality overall, but his music began to have more than two tonalities starting the 2010s, and this is a big variation in his music.

Effect of sintering temperature on microstructure and dielectric properties in (Dy, Mg)-doped BaTiO3 (Dy 및 Mg가 첨가된 BaTiO3에서 소결 온도가 미세구조와 유전특성에 미치는 영향)

  • Woo, Jong-Won;Kim, Sung-Hyun;Choi, Moon-Hee;Jeon, Sang-Chae
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.32 no.5
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    • pp.175-182
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    • 2022
  • Rare-earth elements were doped with Mg to enhance the temperature stability of dielectric properties of BaTiO3 for its application to MLCC (Multi-Layer Ceramic Capacitor). The additives strongly affect both grain growth and densification behaviors during sintering, and hence dielectric properties. The additive effects therefore should be examined in each system with different additives. This study investigated the crystal structure, grain growth and densification behaviors and related variations in dielectric constant with respect to sintering temperature. Dielectric constant appears to be varied with grain size in a temperature range between 1200 and 1300℃, suggesting the importance of grain size control. The temperature dependence of grain size variation was well explained by an established theory correlating the grain growth behavior with grain boundary structure. This accordance provides a basis for sintering technique to control grain growth thus to improve dielectric constant in rare-earth doped BaTiO3.

Suppression of Coupled Pitch-Roll Motions using Quasi-Sliding Mode Control (준 슬라이딩 모드 제어를 이용한 선박의 종동요 및 횡동요 억제)

  • Lee, Sang-Do;Cuong, Truong Ngoc;Xu, Xiao;You, Sam-Sang
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.2
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    • pp.211-218
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    • 2021
  • This paper addressed the problems of controlling the coupled pitch-roll motions in a marine vessel exposed to the regular waves in the longitudinal and transversal directions. Stabilization of the pitch and roll motions can be regarded as the essential task to ensure the safety of a ship's navigation. One of the important features in the pitch-roll motions is the resonance phenomena, which result in unexpected large responses in terms of pitch and roll modes in some specific conditions. Besides, owing to its inherent characteristics of coupled combination and nonlinearity of restoring terms, the vessel shows various dynamical behaviors according to the system parameters, especially in the pitch responses. Above all, it can be seen that suppression of pitch rate remains the most significant challenge to overcome for ship maneuvering safety studies. To secure the stable upright condition, a quasi-sliding mode control scheme is employed to reduce the undesirable pitch and roll responses as well as chattering elimination. The Lyapunov theory is adopted to guarantee the closed stability of the pitch-roll system. Numerical simulations demonstrate the effectiveness of the control scheme. Finally, the control goals of state convergences and chattering reduction are effectively realized through the proposed control synthesis.

Affective Responses to ASMR Using Multidimensional Scaling and Classification (다차원척도법과 분류분석을 이용한 ASMR에 대한 정서표상)

  • Kim, Hyeonjung;Kim, Jongwan
    • Science of Emotion and Sensibility
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    • v.25 no.3
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    • pp.47-62
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    • 2022
  • Previous emotion studies revealed the two core affective dimensions of valence and arousal using affect-eliciting stimuli, such as pictures, music, and videos. Autonomous sensory meridian response (ASMR), a type of stimuli that has emerged recently, produces a sense of psychological stability and calmness. We explored whether ASMR could be represented on the core affect dimensions. In this study, we used three affective types ASMR (negative, neutral, and positive) as stimuli. Auditory ASMR videos were used in Study 1, while auditory and audiovisual ASMR videos were used in Study 2. Participants were asked to rate how they felt about the ten adjectives using five-point Likert scales. Multidimensional scaling (MDS) and classification analyses were performed. The results of the MDS showed that distinctions between auditory and audiovisual ASMR videos were represented well in the valence dimension. Additionally, the results of the classification showed that affective conditions within and across individuals for within- and cross-modalities. Thus, we confirmed that the affective representations for individuals could be predicted and that the affective representations were consistent between individuals. These results suggest that ASMR videos, including other affect-eliciting videos, were also located in the core affect dimension space, supporting the core affect theory (Russell, 1980).

A qualitative study on the adjustment process of families adopting an older child (연장입양가족의 적응과정에 대한 질적 연구 : 주 양육자인 입양모의 입장에서)

  • Chung, Ick-Joong;Kwon, Ji-Sung;Min, Sung-Hye;Shin, Hye-Won
    • Korean Journal of Social Welfare Studies
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    • v.42 no.1
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    • pp.399-432
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    • 2011
  • The purpose of this study is to understand the adjustment process of families adopting an older child, and to generate a substantial theory. To achieve this purpose, we conducted in-depth interviews with mothers adopting an older child and analyzed data with qualitative analysis approach. From the analysis, theoretical model has been made, and the model includes the adoptive families' diverse experiences, barriers to adjustment as well as resources and strategies that they mobilized and used for smooth adjustment. Their experiences in the process of adjustment consisted of five phases: unfamiliar meeting, shock, fighting alone without support, control, and stability. Barriers to adjustment process were composed of adoptees' problem behaviors, loss of time, lack of preparation, lack of experiences, repetition of the vicious circle, withstanding alone, improper resources, lack of support, and being criticized. Resources and strategies that families adopting an older child utilized were individual resources and ability such as rearing experiences, intellectual ability, willingness, belief, and perspective change; family system such as spouse and other offsprings; informal support system such as extended families, relatives, friends, neighbors, and other families adopting an older child; formal resources such as adoption workers and helping professionals. From our results, we suggested policy and practice guidelines to help adjustment experiences for families adopting an older child.

Evaluation Model for Lateral Flow on Soft Ground Using Commitee and Probabilistic Neural Network Theory (군집신경망과 확률신경망 이론을 이용한 연약지반의 측방유동 평가 모델)

  • Kim, Young-Sang;Joo, No-Ah;Lee, Jeong-Jae
    • Journal of the Korean Geotechnical Society
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    • v.23 no.7
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    • pp.65-76
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    • 2007
  • Recently, there have been many construction projects on soft ground with growth of industry and various construction problems concerning soft soil behavior also have been reported. Especially, foundation piles of abutments and (or) buildings which were constructed on the soft ground have been suffering from a lot of stability problems of inordinary displacement due to lateral flow of soft ground. Although many researches for this phenomena have been carried out, it is still difficult to assess the mechanism of lateral flow on soft ground quantitatively. And reliable design method for judgement of lateral flow occurrence is not established yet. In this study, PNN (probabilistic neural network) and CNN (committee neural network) theories were applied for judgment of lateral flow occurrence based on eat data compiled from Korea and Japan. Predictions of PNN and CNN models for new data which were not used during model development are compared with those predicted by conventional empirical methods. It was found that the developed PNN and CNN models can predict more precise and reliable judgment of lateral flow occurrence than conventional empirical methods.