• 제목/요약/키워드: ruler

검색결과 210건 처리시간 0.026초

Generic and adaptive probabilistic safety assessment models: Precursor analysis and multi-purpose utilization

  • Ayoub, Ali;Kroger, Wolfgang;Sornette, Didier
    • Nuclear Engineering and Technology
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    • 제54권8호
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    • pp.2924-2932
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    • 2022
  • Motivated by learning from experience and exploiting existing knowledge in civil nuclear operations, we have developed in-house generic Probabilistic Safety Assessment (PSA) models for pressurized and boiling water reactors. The models are computationally light, handy, transparent, user-friendly, and easily adaptable to account for major plant-specific differences. They cover the common internal initiating events, frontline and support systems reliability and dependencies, human-factors, common-cause failures, and account for new factors typically overlooked in many PSAs. For quantification, the models use generic US reliability data, precursor analysis reports, the ETHZ Curated Nuclear Events Database, and experts' opinions. Moreover, uncertainties in the most influential basic events are addressed. The generated results show good agreement with assessments available in the literature with detailed PSAs. We envision the models as an unbiased framework to measure nuclear operational risk with the same "ruler", and hence support inter-plant risk comparisons that are usually not possible due to differences in plant-specific PSA assumptions and scopes. The models can be used for initial risk screening, order-of-magnitude precursor analysis, and other research/pedagogic applications especially when no plant-specific PSAs are available. Finally, we are using the generic models for large-scale precursor analysis that will generate big picture trends, lessons, and insights.

변형률 및 진동 측정 교육을 위한 실험 장치와 실험 포트폴리오 (Test Equipment and Test Portfolio for Education of Strain and Vibration Measurements)

  • 양지민;이두열
    • 실천공학교육논문지
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    • 제13권3호
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    • pp.497-505
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    • 2021
  • 재료의 변형률과 진동 측정을 실습하기 위한 외팔보 형태의 실험 장치를 개발하였다. 주변에서 구할 수 있는 재료와 저렴한 제어기를 사용하여 제작하였다. 철재 자로 된 외팔보에 서로 다른 위치에 변형률게이지를 설치하여 외부 하중에 따른 보의 변형률을 측정할 수 있도록 구성하였다. 전자석으로 외팔보를 가진하며, 함수발생기로 원하는 주파수로 외팔보에 진동이 발생하도록 하였다. 장치를 사용하여 수행이 가능한 세 가지 실험을 제시하였으며, 각각 저울 만들기 시험, 외팔보의 공진주파수 측정 실험, 그리고 가진주파수와 측정 주파수의 차이를 구하는 실험이다. 간단하면서도 저렴하게 만들 수 있는 실험 장치와 실험 포트폴리오를 통해 효과적인 하중 및 진동 측정 교육 수행이 가능할 것으로 기대된다.

청대 시각적 교육매체로서의 연화 (New Year Picture, a Visual Educational Medium in the Qing Dynasty)

  • 이은상
    • 중국학논총
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    • 제27호
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    • pp.147-166
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    • 2009
  • New year pictures prevailed from 1660s to 1860. Especially, the reign period of Emperor Qianlong(r. 1736-1795) was the period of prosperity. The period of 1660s when new year pictures were started to be popular was the reign period of Emperor Kangxi(r. 1662-1722) was just started and corresponded to Emperor Kangxi's promulgation of "Sacred Edict." Chinese operas such as Peking opera were very popular among common people in the period from 1660s to 1860 when new year pictures prevailed. Qing emperors as foreign ruler chose the way of ruling their people by means of cultural influence in stead of military power. However their culture effort was not efficient toward the majority of illiterate people. New year pictures offered every information about the world through visual icons to the illiterate people at that time who perceived the world by means of seeing. They met the world through visual information offered by new year pictures. New year pictures were the stronger visual medium to spread and educate "Sacred Edict" to illiterate subjects than any other guide books published by elite officers.

Detecting the Baryon Acoustic Oscillations in the N-point Spatial Statistics of SDSS Galaxies

  • Hwang, Se Yeon;Kim, Sumi;Sabiu, Cristiano G.;Park, In Kyu
    • 천문학회보
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    • 제46권2호
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    • pp.72.3-73
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    • 2021
  • Baryon Acoustic Oscillations (BAO) are caused by acoustic density waves in the early universe and act as a standard ruler in the clustering pattern of galaxies in the late Universe. Measuring the BAO feature in the 2-point correlation function of a sample of galaxies allows us to estimate cosmological distances to the galaxies mean redshift, , which is important for testing and constraining the cosmology model. The BAO feature is also expected to appear in the higher order statistics. In this work we measure the generalized spatial N-point point correlation functions up to 4th order. We made measurements of the 2, 3, and 4-point correlation functions in the SDSS-III DR12 CMASS data, comprising of 777,202 galaxies. The errors and covariances matrices were estimated from 500 mock catalogues. We created a theoretical model for these statistics by measuring the N-point functions in halo catalogues produced by the approximate Lagrangian perturbation theory based simulation code, PINOCCHIO. We created simulations using initial conditions with and without the BAO feature. We find that the BAO is detected to high significance up to the 4-point correlation function.

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Confucianism in Vietnam: A Hauntology-based Analysis of Political Discourse

  • LINH Trinh Ngoc
    • 대순사상과 동아시아종교
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    • 제3권1호
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    • pp.87-108
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    • 2023
  • From the time it was propagated to Vietnam until it was forced to relinquish its leadership position in both politics and philosophy, Confucianism in Vietnam was never orthodox Confucianism. This study employs the theory of invented tradition to examine how Confucianism penetrated the ethnic Vietnamese community at the turn of the first millennium and points out its vital requirement: the construction of a Chinese-style centralized administrative government based on Neo-Confucianism. This requirement unfolded during the Le So Dynasty in the fifteenth century. Moreover, the theory of invented tradition can also be applied to discover the motivation behind Neo-Confucianism's process of manufacturing orthodoxy to speed up the goal of Sinicization. Somehow, the launching of the imperial examination system, meant to fulfill a system of bureaucracy, ended up resolving one of the greatest challenges of medieval times. It is to seek the ruler's uncritical submission to the ruled. This article applies hauntology to analyze two forms of Confucianism discourse in Vietnam. In doing so, this study determined that Confucianism evolved into its own unique system of thought in Vietnam and in the end, was not even recognizable as Confucianism. Throughout Vietnam's turbulent history, Confucianism shifted from a symbol of progress to one of backwardness. This culminated Vietnam's preoccupation with the de-Sinicization during the early twenty-first century.

Minh Mang Thang, the Mysterious Vietnamese Prescription Containing Korean Ginseng

  • Thi Hong Van Le;Van Dan Nguyen;Manh Hung Tran
    • 인삼문화
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    • 제6권
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    • pp.1-12
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    • 2024
  • Emperor Minh Mang (明命), the second ruler of the Nguyen Dynasty in Vietnam, reigned from 1820 to 1841. He is widely regarded by contemporary historians as the most distinguished monarch of his dynasty, despite some controversial policies. One aspect of his extraordinary legacy is the remarkable 142 offspring he sired - 78 princes and 64 princesses - earning him the unprecedented distinction of having the most progeny among kings in world history. Vietnamese people suppose Minh Mang's prolific reproductive success to the consumption of a specially prescribed medicine known as Minh Mang Thang (明命湯, MMT). This medicine, often associated with sexual potency and fertility, is characterized by intriguing names such as "One night Five sexes," "One night Six sexes born Five babies," or "Six sexes Three pregnancies." Vietnamese folklore vividly recounts Minh Mang's exceptional sexual prowess, attributing it to the use of MMT. MMT formulations, which include various herbs, notably Korean ginseng, may incorporate additional botanical ingredients depending on their intended purpose. This paper aims to explore the origins, history, ingredients, and applications of MMT, unraveling the mystery behind this mystical prescription that has inspired several oriental medicinal researchers. Through this investigation, we seek to shed light on the cultural and historical contexts surrounding Minh Mang's use of MMT and its enduring impact on traditional Vietnamese medicine and folklore.

퇴계(退溪)의 천관(天觀) 연구(硏究) (A Study of Perspective on Cheon Gwan(天觀) of Toegye)

  • 황상희
    • 동양고전연구
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    • 제56호
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    • pp.147-170
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    • 2014
  • 천(天)의 개념을 살펴보자면 송대(宋代)이전은 종교적(상제(上帝)) 천(天)이라면 송대(宋代)이후는 합리적(천(天)理) 천(天)이다. 주자는 종교성을 잃어버렸고 퇴계는 회복했다. 이 논문은 퇴계와 주자가 말하는 천(天)의 속성이 다르다는 것을 기반으로 리(理)의 종교성까지 밝히는 것이 목적이다. "서명"은 '이일분수(理一分殊)'의 논리로 설명되어진다. 주자와 퇴계는 이일(理一)이란 측면에서는 사천(事天)이란 해야한다고 말하지만 분수(分殊)의 측면에서 살펴보면 주자는 천리(天理)의 이법을 따라야 한다고 하고 퇴계는 사친(事親)의 효(孝)를 행해야 한다고 한다. 이와 같이 퇴계와 주자는 천(天)의 속성 다르기 때문에 방법에 있어서도 차이가 생긴다. 이러한 차이는 리(理)의 속성에까지 영향을 미친다. 주자(朱子)는 소이연(所以然)은 리(理), 소당연(所當然)은 사(事)라고 구분해서 말한다. 퇴계(退溪)는 소당연(所當然)이야 말로 리(理)라고 말한다. 본질과 실존의 논의로 보자면 퇴계에게는 실존이 본질보다 먼저인 것이다. 리(理)라는 형이상학적 논의 속으로 실존의 문제를 이야기 할 수 있게 되었다. 퇴계(退溪)에게서 주자(朱子)와 다르게 주목되는 이론은 '이자도(理自到)'설 이다. '이자도(理自到)'는 나라는 주체가 타자에게 지극히 하면 타자가 나에게로 와서 나를 통해 발현된다는 것이다. 이 논의는 '물격(物格)'에 토를 넣는 문제에서 시작한다. 퇴계는 '물리(物理)'가 이르는 것이 아니라 '중리(衆理)'가 이르는 것이라고 말한다. 이는 '상대적 리(理)'와 '절대적 리(理)'를 명확하게 구분하기 위한 논의이다. 존재는 비존재를 존재로 한 존재이기 때문에 상대적 리(理)이지만 존재와 비존재를 뛰어 넘으면 절대적 리(理)이다. 이는 분수(分殊)의 리(理)와 이일(理一)의 리(理)에 대한 차이이다. 즉 절대적 리(理)가 나에게로 이르러 내 삶에서 드러나는 공효가 물격(物格)이다. 퇴계는 천(天)=리(理)=상제(上帝)를 동일시하는 종교적인 태도를 강하게 보이고 있다.

대한제국 좌절기의 경찰 - 러일전쟁(1904) 이후 일제강점(1910) 전까지를 중심으로 - (Police in the Disappointed Era of the Korean Empire - After the Russo-Japanese War(1904) before the Korea Japan Annexation(1910) -)

  • 최선우
    • 한국콘텐츠학회논문지
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    • 제8권12호
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    • pp.310-321
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    • 2008
  • 대한제국시기에는 국가의 정체성이 확립되지 못한 상황이었고, 따라서 경찰 역시 일정한 발전방향 없이 잦은 변동만 거듭한 부분이 적지 않다. 물론, 이러한 과정에는 외세의 침략으로부터 나라를 수호하기 위한 통치권자의 노력 역시 존재한다고 본다. 그러나 이러한 대한제국의 전제황권강화 및 근대화노력은 1904년 러일전쟁 이후 일본의 독점적 지배권 확보 및 직접적인 침탈과정을 거치면서 좌절하게 된다. 국가체제를 유지하는 중요한 물리적 수단 가운데 하나가 바로 경찰이라는 점을 감안할 때, 일본은 다양한 형태로 대한 제국의 경찰제도에 일본의 의사를 반영하려고 하였음은 물론이다. 따라서 일본은 다양한 형태의 보통경찰로 대한제국의 경찰권을 침탈하였고, 다른 한편으로는 헌병대 역시 군사경찰 이외의 보통경찰의 업무를 수행하면서 경찰권을 침탈하였다. 그리고 이들 헌병경찰과 보통경찰은 또한 상호 역할갈등이 노정되기도 하였지만, 결국 헌병경찰 중심으로 통합되기에 이르며, 이는 1910년 일제강점에 의한 식민경찰의 기본모형으로서 자리 잡게 된다.

명 홍무제의 관복제정에 관한 연구 (A Study on the System of Official Uniforms Established by Emperor Hong-wu(洪武) of the Ming(明) Dynasty)

  • 전혜숙;류재운
    • 복식
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    • 제55권2호
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    • pp.70-81
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    • 2005
  • This paper researches the system of official uniforms and characteristics of the system based on Ming-Shi(明史), Da-Ming-Hui-Dian(大明會典) and Hong-Wu-Li-Zhi(洪武禮制) in the emperor Hong-wu(洪武帝) of Ming dynasty(明). The system could be divided in to three terms, i.e., the early (initial), the middle and the end (last) terms. In the first(1368) & the third year of the emperor's reign (1370) the system of official uniforms was simple f9r his people not to be luxurious and for revived the system of official uniforms of the Han dynasty(漢) and annulled the system of the Yuan dynasty(元), be-cause the country was not stable yet. During the middle term of Hong-wu, the 14th (1381) to 16th (1383) year of his reign, people attained luxurious lives and developed a strong sense of rank as the country became more stable. As a result, the system became more complicated when the emperor used the costumes to represent political and social ranking. In the end of the emperor's age, the 23rd (1390) to 26th (1393), it reveals his strong intention to establish a system of costumes that separated the ruler from the ruled. He wanted to strengthen the power of Emperor for his little grandson, Jian-wen(建文帝), who would succeed to the throne and would have absolute power. These changes became fundamental to the Ming dynasty's costume system and the Ming dynasty kept them for long time.

서원학파(西源學派) 의가(醫家)에 관(關)한 연구(硏究) (A Study about medical doctors of the school of Seowon)

  • 윤창열
    • 대한한의학원전학회지
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    • 제26권3호
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    • pp.1-9
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    • 2013
  • Objective : In South Song era, Choe Ga-eon(崔嘉彦) built Seowonam(西源庵), lived as a hermit and communicated with Juja(朱子) in LuShan(廬山), JiangXi province(江西省), JiuJiang city(九江市). Maekgyeol(脈訣) written by him significantly influenced the forthcoming medical doctors, who took over his studies and were called the school of Seowon. Little information about his life and his successors encouraged this study. Method : The core contents of Maekgyeol(脈訣), his life based on Waryongamgi(臥龍庵記) and Seowongamgi(西源庵記) written by Juja(朱子) and his successors on the basis of various medical books were investigated. Result : The Seowonam(西源庵) is located at the entrance of xiufeng Scenic spot(秀峰景區) which is 6km west from center of Xingzi county(星子縣), JiangXi province(江西省), JiuJiang city(九江市). The points of Maekgyeol(脈訣) are inferring the symptom of wind, energy, cold and heat by categorizing seven exterior and eight interior pulse into four pulses of float, sink, slow and quick and diagnosing a disease of three warmer and the five viscera and the six entrails by subordinating four pulses to Chon, Gwan, and Cheok(寸關尺). By writing the book of Sawonron(四原論) he clarified the clinical point, pulse, disease, symptom, treatment with learning the cause of a disease through pulse, understanding the symptom through a disease, and giving a remedy through a symptom. Then he communicated with Juja(朱子) assigned to NanKangJun(南康軍) as a ruler. He helped Juja(朱子) to build Waryongam(臥龍庵) and Juja(朱子) wrote Seowonamgi(西源庵記) for him. Conclusion : The members of medical doctors of the school of Seowon were Choe Ga-eon(崔嘉彦) and his follower Yu Gae(劉開), Yugae's disciple Eom Yong-hwa(嚴用和) and Ju Jong-yang(朱宗陽) and Ju Jong-yang's disciple Jang Do-jung(張道中). They, who were famous for pulse, had contributed to advancing study of pulses in the field of oriental medicine.