• 한국수학교육학회지시리즈B:순수및응용수학
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• 제27권1호
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• pp.61-70
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• 2020

In this paper, we introduce a new concept of stability of coincidence iterative algorithm for three mappings and derive a new three-step Jungck-type iterative algorithm. And, we prove a stability result and a strong convergence result for the Jungck-type algorithm using the M_J-contractive condition. Our results extend and unify the corresponding ones in [3, 6, 7, 13].

• 말소리와 음성과학
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• 제9권4호
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• pp.77-89
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• 2017

This study investigates the phonetic meaning of clarity and turbidity(淸濁) that has been used in psychoacoustics, musicology, and linguistics in both the East and the West. With a view to clarifying the phonetic meaning of clarity and turbidity, this study conducts three perception tests. First, 34 subjects were asked to take one of Clear and Turbid by forced choice for 5 pure and complex tones, respectively, ranging from A2 to A6 differing by octave. Second, they were asked to select between the two choices for 25 pure and complex tones, respectively, ranging from A2 to A4 differing by semitone. Third, they were asked to opt for one of the two choices for 8 different vowels of different formant and fundamental frequencies. Results showed that there is a certain range of tone which is perceived as clear, that clarity level increases as fundamental frequency increases, and that pure tones have a higher level of clarity than complex ones, fundamental frequency being equal. Results also showed that vocal tract resonance enhances clarity level on the whole, and that lower vowels have a higher level of clarity than higher ones. This study is significant in that it demonstrates that clarity level is proportional to fundamental frequency and the first formant frequency, all else being equal.

• 물과 미래
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• 제29권1호
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• pp.203-212
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• 1996

특성곡선이 통과하는 인접 시간준위에서의 3개 격자점을 이용한 시간준위 Lagrange 보간기법을 개발하여, 기존의 시간준위 보간기법인 Reachback 기법과 두가지 공간 보간기법, 즉 Upwind 기법과 3개의 공간 격자점을 이용한 공간 2차 보간기법과 함께 두가지 형태의 오염원 이송문제에 각각 적용 하므로써 공간 및 시간준위 보간기법에 의한 수치해의 정확도를 비교, 분석하였다. 본 연구결과에 의하면 동일한 차수의 보간기법을 비교할 경우, 공간보간 기법보다 시간 보간기법을 이용하면 수치분산 또는 수치진동이 적은 보다 정확한 수치해를 구할 수 있는 것으로 나타났다. 한편, 본 연구에서 제시한 기법은 기존 시간준위 보간기법에 의한 해의 장점을 포함하면서 정확도를 향상시킬 수 있는 것으로 나타났다.

• 대순사상논총
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• 제21권
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• pp.99-156
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• 2013

This paper is to indicate research tendencies of faith in Daesoonjinrihoe and controversial points of those, and to consider the outlook on Sangje after defining it as theological understanding and explanation for Gu-Cheon-Sang-Je (High-est ruling Entity that is the object of devotion in Daesoon-jinrihoe). As the first introduction to the work, various descriptions for Sangje are arranged and the meanings of those are analyzed. In brief, first, the name of Gu-Cheon-Eung-Won-Nweh-Seong-Bo-Hwa-Cheon-Jon, expresses the fact that the authority of Sangje (the Supreme Entity) is exposed by spatial concept Sangje dwells in Ninth Heaven. This fact can be compared with the doctrines Allah in Islam and Jehovah in Christianity each are dwelled in Seventh Heaven. And the name shows Sangje is the ruler who reigns over the universe by using yin and yang. Second, the name, Gu-Cheon-Eung-Won-Nweh-Seong-BoHwa-Cheon-Jon, is imported from China Taoism because it has been in Ok-Chu-Gyeong (the Gaoshang shenlei yushu). But in fact it's root is in Korea because Buyeo and Goguryeo, the ancient Korean nations, have the source of the name. While the name is not the Supreme Entity in China Taoism, it is the Supreme Entity in Daesoonjinrihoe. This fact is a important difference. Third, arbitrarily or not, the name, Gu-Cheon-Eung-Won-Nweh-Seong-Bo-Hwa-Cheon-Jon, is put on the image of 'resolution of grievances'. The reason is that many peoples in Korea and China has called the name for about 1,000 years ago to help their fortunes and escape predicaments. Forth, not only Gu-Cheon-Eung-Won-Nweh-Seong-Bo-Hwa-Cheon-Jon but also the name, Three Pure Ones and Ok-Cheon-Jin-Wang (Yuqingzhenwang) in China Taoism used as the Highest ruling Entity in Daesoonjinrihoe. But the relations between three Pure Ones and Ok-Cheon-Jin-Wang and Gu-Cheon-Eung-Won-Nweh-Seong-Bo-Hwa-Cheon-Jon in Dae-soonjinrihoe are different from that in China Taoism. Fifth, Sangje is associated with the Polaris divinity of Tae-Eul, view on God in Oriental Cosmology. The description Tae-Eul as well as Gu-Cheon-Eung-Won-Nweh-Seong-Bo-Hwa-Cheon-Jon is indicated Sangje is linked to the faith of Buyeo and Goguryeo. Sixth, Sangje is not only Mugeuk-Sin (The God of The Endless) who supervise the Endless but also Taegeuk-Ji-Cheon-Jon (The God of The Ultimate Reality) who supervise the Ultimate Reality. These descriptions directly display the fact Sangje is a creator. Seventh, in case explaining Sangje, the point of view is necessary that grasps the whole viewpoints Sangje 'was' Hidden God(deus otiosus) and 'is' Unhidden God after Incarnation. Eighth, Sangje is Cheon-Ju in Donghak, but different from that. Cheon-Ju in Donghak has both transcendence and immanence in tightrope tension, but Cheon-Ju in Daesoonjinrihoe emphasize transcendence than immanence. That difference is the result of the fact Cheon-Ju in Donghak was a being having revealed a man and Cheon-Ju in Daesoonjinrihoe was a being having incarnated after revealing a man. Ninth, Sangje is Gae-Byeok-Jang who is the manager of the transforming and ordering the Three Realms of the World by the Great Do which is the mutual beneficence of all life and Hae-Won-Sin who is the God of resolution of grievances.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제17권1호
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• pp.1-27
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• 2010

Wu and Zhao [17] provided a semilocal convergence analysis for a Newton-type method on a Banach space setting following the ideas of Frontini and Sormani [9]-[11]. In this study first: we point out inconsistencies between the hypotheses of Theorem 1 and the two examples given in [17], and then, we provide the proof in affine invariant form for this result. Then, we also establish new convergence results with the following advantages over the ones in [17]: weaker hypotheses, and finer error estimates on the distances involved. A numerical example is also provided to show that our results apply in cases other fail [17].

• 미술이론과 현장
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• 제3호
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• pp.155-172
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• 2005

Kim Whan-ki is an unusual instance in Korean modern artists, who payed attention to emotional and expressive effects of colors. The color of Whan-ki's paintings have been recognized as linked with 'blue' in spite that he used colors within the category of 'Colors of Five Directions(五方色)', which are traditional oriental colors composed of red, lue, yellow, white, green and black. Kim Whan-ki unearthed upon similarity of Five Directions Colors to the three(five) primary colors which modern abstract painter like Mondrian layed down. Whan-ki switched the five directions colors to modern ones. Kim Whan-ki's dot painting in which pure and watery color is sucked in ground is modernistic adaptation from ink painting. He packs a dot with sky and earth, moon and stars, forest and tree, birds and flowers, friends at his hometown, wind, sound and so on. Putting tens of thousands of these shapes and colors into a dot is modernistic version from ink painting. In that point there is a possibility to say that 'dark blue' of the dot painting is 'Hyun-saec(玄色)'. Eventually we can make sure that Kim Whan-ki's view of Art originated in oriental philosophy and beauty.

• 한국실내디자인학회논문집
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• 제16권4호
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• pp.3-11
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• 2007

We study, in this paper, on the decorative design of the Treasure-architectural form for the Silla Buddhist reliquary and this research went through the observation on the Buddhist Reliquaries of the Song-Lim-Sa, the Eastern-Western three floor pagodas in the Kam-Eun-Sa, the three floor pagodas in the Bul-Guk-Sa and the reportedly discovered Nam-Won. The Buddhist reliquaries of these 5 Reliquaries, when compared with those of China and Japan in the same period, they worshiped the Buddhist reliquary as a Buddhist God itself and put them as a part of the architectural decoration, being installed in the construction forms. In the form and the composition of the architecture, we can see those having been designed with very detailed and brightly decorated form. The Buddhist reliquaries in the Song-Lim-Sa and Kam-Eun-Sa, the most important ones in this research, were in a royal palace shape having completely the altar part, interior space part, and the ceiling part, which inform us the whole structure of the architecture in details. In particular, for the case of Kam-Eun-Sa, the columns in the shape of bamboo trees, the expression of the gates, the terrace of double parts formed of word-shape Man, and the statue of a general with superhuman ability in the shrine explain us the description of the Gyun-Bo-Tap-Pum of Lotus Sutra. After all these researches, we conclude that the Buddhist reliquaries in form of the Treasure-architecture represented the architectural style of the same period as a form of industrial arts and we can see that they tried to use all of their highly skilled and talented methods to describe the Buddhist Pure Land.

• Journal of Radiation Protection and Research
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• 제44권4호
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• pp.128-148
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• 2019

Massive environmental monitoring has been conducted continuously since the Fukushima Daiichi Nuclear Power accident in March of 2011 by different monitoring methods that have different features together with migration studies of radiocesium in diverse environments. These results have clarified the characteristics of radiological environments and their temporal change around the Fukushima site. At three months after the accident, multiple radionuclides including radiostrontium and plutonium were detected in many locations; and it was confirmed that radiocesium was most important from the viewpoint of long-term exposure. Radiation levels around the Fukushima site have decreased greatly over time. The decreasing trend was found to change variously according to local conditions. The air dose rates in environments related to human living have decreased faster than expected from radioactive decay by a factor of 2-3 on average; those in pure forest have decreased more closely to physical decay. The main causes of air dose rate reduction were judged to be radioactive decay, movement of radiocesium in vertical and horizontal directions, and decontamination. Land-use categories and human activities have significantly affected the reduction tendency. Difference in the air dose rate reduction trends can be explained qualitatively according to the knowledge obtained in radiocesium migration studies; whereas, the quantitative explanation for individual sites is an important future challenge. The ecological half-lives of air dose rates have been evaluated by several researchers, and a short-term half-life within 1 year was commonly observed in the studies. An empirical model for predicting air dose rate distribution was developed based on statistical analysis of an extensive car-borne survey dataset, which enabled the prediction with confidence intervals. Different types of contamination maps were integrated to better quantify the spatial data. The obtained data were used for extended studies such as for identifying the main reactor that caused the contamination of arbitrary regions and developing standard procedures for environmental measurement and sampling. Annual external exposure doses for residents who intended to return to their homes were estimated as within a few millisieverts. Different forms of environmental data and knowledge have been provided for wide spectrum of people. Diverse aspects of lessons learned from the Fukushima accident, including practical ones, must be passed on to future generations.

• 기술혁신연구
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• 제24권3호
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• pp.107-137
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• 2016

이 논문은 전국적인 설문조사자료를 분석하여 과학연구에 대한 한국인의 지지도가 어떠하며, 어떤 집단이 이러한 지지를 견인하고 있는지를 순수 기초 연구, 산업발전을 목표로 하는 응용연구, 일반시민의 삶의 질 향상을 목표로 하는 사회문제 해결형 연구로 나누어 살펴본다. 분석결과 사회적 정치적 가치 지향에 따라 사회문제 해결형 연구를 포함한 연구 유형별 지지도에 차이가 나타났다. 주관적 정치성향이 진보적일수록 사회문제 해결형 연구를 다른 유형의 연구들에 비해 지지하는 경향을 보인 반면, 보수적일수록 기초연구에 대한 지지도가 높아졌고 신자유주의적 가치지향에 가까울수록 응용연구에 대한 지지도가 높아졌다. 한편 한국사회에서 사회문제 해결형 연구가 지나친 응용연구에 대한 비판으로 대두된 반면, 일반시민들은 이를 응용연구보다 기초연구와 대비되는 것으로 인식하고 있었다. 또한 사회문제 해결형 연구가 전문가주의의 폐해를 극복하기 위해 시민참여를 강조하는 반면, 과학자의 권위와 전문성에 대한 신뢰도 수준이 높을수록 오히려 사회문제 해결형 연구에 대한 지지도가 증가하는 것으로 나타났다. 마지막으로 소득 수준이 낮을수록 사회문제 해결형 연구에 대한 지지도가 다른 두 유형의 연구에 대한 지지도보다 높은 것으로 나타났다.

• 한국가금학회지
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• 제12권2호
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• pp.97-105
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• 1985

여러 가지 종류의 사료 섬유질이 수탉의 수분 Na 대사에 미치는 영향을 조사하고자 약 1년 된 SCWL 수탉 15수를 공시하였다. 시험사료는 5가지로서, 밀기울, 셀루로스 및 볏짚들로서 대조구의 옥수수를 10% 수준으로 대체하였으며, 펙틴은 8%수준으로 사용하였다. 각 시험사료 처리당 3수의 수탉을 사용하여 3반복으로 하였다. 시험사료의 건물 대사율은 셀루로스구와 볏짚구가 제일 낮았으며 (P$\leq$.05), 대조구와 펙틴구가 제일 높았다. 밀기울사료의 건물 대사율은 이들의 중간 정도이었다. 수탉의 음수량은 사료 g당 음수량으로 표시할 경우 펙틴구가 타 사료구들에 비해 유의하게 (P$\leq$.05) 높았으며, 배설물의 수분 함량도 제일 많았다. 그러나 이러한 음수량의 차이는 수탉을 결장척출수술을 하였을 경우 사라져서 처리구간에 유의한 차이가 없었다. 또한 음수량은 수탉을 수술하기 전보다 수술한 후에 유의하게 증가하였다. 배설물의 water holding capacity와 bulk density data는 셀루로스＞볏짚＞밀기울의 순으로 섬유질성이 강함을 보여 주었다. 결장척출수술을 한 탉의 혈장과 요의 $Na^{+}$ 농도와 osmolality는 사료처리구별로 유의성이 없었으며, $C_{Na+}$, $C_{osm}$ 및 $C_{H_2O}$에 있어서도 각 처리구 사이에 5 % 수준에서 유의성이 없었다. 그러나 요 배설량과 osmolality 및 $C_{H_2O}$의 수치들을 종합하여 볼 때, 공시한 15수의 수탉 중에서 11수가 다요증상을 보였으며, 섬유질성이 높은 사료를 섭취하는 수탉일수록 그 증세가 심하였음을 알 수 있었다. 결론적으로 본 시험에서 공시된 4가지의 섬유질들을 섬유질성이 높은 순으로 나열해 보면 펙틴, 셀루로스, 볏짚 그리고 밀기울의 순서라고 하겠다.하겠다.