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유클리드 기하학과 플라톤 기하학을 구분 짓는 증명으로서의 ‘질문’에 대한 가다머의 해석
임연정 ( Lim¸ Youn-jeong ) 전남대학교 호남학연구원 2021 감성연구 Vol.- No.23
본 연구는 유클리드 기하학이 인류지성사에서 이천 년 이상 그 논리를 진리로 받아들여져 왔던 배경을 살펴보는 일이다. 사실 대부분의 사람들은 18세기말 비유클리드 기하학의 발견을 인식하지 못하고 있다. 이 발견은 코페르니쿠스적 전회만큼 위대하고 우리가 가진 공간에 대한 유클리드적 사고를 모두 무너뜨리는 큰 사건이었다. 당시 비유클리드 기하학의 발견은 우리의 사고에 다른 기하학의 가능성이 얼마나 충격을 가져다주었는지를 가늠하기 힘들 정도였다. 그리고 1915년 아인슈타인의 일반 상대성이론은 비유클리드 기하학의 가능성을 증명해보였다. 그럼에도 불구하고 이러한 비약적 과학의 발달을 불러일으킨 기하학과 논리학이 최초로 철학에서 시작되었다는 사실 조차 전혀 인식하지 못하고 있는 것이 작금의 현실이다. 본 연구는 최초의 철학자들이 기하학과 논리에 제기했던 그들의 사유의 한계에 대해 고찰해보기에 앞서, 보다 편만해 있어 더 극복하기 어려운 한계에 주목하고자 한다. 그 고찰은 가다머가 제기한 언어의 한계이다. 논자는 가다머의 기하학의 해석을 적극 수용하면서 기하학은 사고체계가 아닌 한갓 언어의 비유라는 점을 강조하는 바이다. 논자는 가다머의 해석에서 플라톤 기하학이 학문에서 단절되고 이후 아리스토텔레스의 연역적 토대위에 세워진 유클리드 기하학이 어떻게 현대의 수학과 논리학까지 자리할 수 있었는지를 두 가지 관점에서 찾았다. 첫째, 유클리드는 자신의 기하학의 자명성을 위해 ‘질문’을 배제시켰다. 둘째, 유클리드는 증명하지 않아도 자신의 공리가 참이 되도록 하나의 언어 ‘사용(Gebrauch)’만을 수용했다. 그 결과로 유클리드 기하학은 ‘참’ 또는 ‘거짓’이라는 이분법적 연역세계가 현대 기호 논리학에 포섭되면서 ‘말이 수(數)’와 같아질 수 있다는 잘못된 사고방식으로 유도되었다. The purpose of this study is to examine the background in which Euclidean geometry has been accepted as truth for more than two thousand years in the history of human intelligence. In fact, most people are unaware of the discovery of non-Euclidean geometry at the end of the 18th century. This discovery was as great as the Copernican revolution and was a major event that destroyed all our Euclidian thinking about space. The discovery of non-Euclidean geometry made it hard to imagine how much impact the possibilities of other geometries had on our thinking. Finally, our intellect has developed these two geometries on the basis of relative inconsistency over the past 150 years or more, and continues to contribute to our human sciences even now. Nevertheless, the reality is that we are not even aware of the fact that the geometry and logic that gave rise to such a leap in science began in philosophy for the first time. Furthermore, they do not even know that Einstein’s theory of relativity could evolve from this philosophy. According to Einstein, space and time are indivisible, and the geometry of space-time is affected by matter, so that light rays are bent by gravity. Space was no longer believed to be an empty Newtonian box whose appearance was now unaffected by the mass that rested upon it. Before examining the limitations of their thinking that the first philosophers put forward on geometry and logic, this study intends to focus on the limitations that are more prevalent and more difficult to overcome. The consideration is the limitation of language proposed by Gadamer. According to Gadamer, after the break of Platonic geometry, Euclidean geometry, which was built on the deductive foundation of Aristotle, was able to maintain as a scientific truth up to modern mathematics and logic, from two perspectives. First, Euclid excluded the ‘question’ for the sake of the obviousness of his geometry. Second, Euclid accepted only one language ‘use’ (Gebrauch) so that his axiom would be true without proof. In the end, Euclidean geometry was led to the wrong way of thinking that ‘words can be equal to numbers’ as the dichotomous deductive world of ‘true’ or ‘false’ are embraced by modern elementary logic.
Effect of sawdust particle size on larval growth and oviposition preference of Protaetia brevitarsis
Younjeong Mo,Hae-chul Park,In-gyun Park,Seonghyun Kim 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.10
In general, the larvae of Protaetia brevitarsis is raised on fermented oakwood sawdust. Many attempts have been to changes components sawdust, such as using other tree instead of oakwood or adding another material. Like this some study exists, about 'component' of sawdust, however little is known of relation between larval growth and quality of sawdust. The phenomenon-big particle size sawdust flows up on excrement from the larvae-is occurring in used sawdust for raising the larvae. This study was conducted to observe the larvae and adult of Protaetia brevitarsis act according to each sawdust particle size. We conducted choice experiments with Protaetia brevitarsis, which were offered sawdust differing in particle size. Females preferred to lay their eggs on the fine particle sawdust. Also in the case of larvae, the more fine sawdust particle has the more high level of preference, and so is hatchability. Especially larvae tend to be slanted toward finer sawdust. Growth rate of the larvae was shown the highest level in the finest sawdust just as others do. These results show that fine sawdust particle size is advantage for larval development and oviposition.
( Younjeong Lee ),( Kyung-jin Min ),( Sanghoon Lee ),( Jin Hwa Hong ),( Jae Yun Song ),( Jae-kwan Lee ),( Nak Woo Lee ) 대한산부인과학회 2018 대한산부인과학회 학술대회 Vol.104 No.-
Objective: To prove that making distinction between the cytology of Atypical Squamous Cells of Undetermined Significance (ASCUS) and Low-grade squamous intraepithelial lesion (LSIL) or between Atypical Squamous Cells cannot exclude HSIL (ASC-H) and High-grade Squamous Intraepithelial Lesion (HSIL) in clinical practice may not be necessary. Methods: Including the referrals from local hospitals, we investigated women who visited Korea university medical center, Guro hospital for cervical cancer screening from February 2004 to December 2014. Through chart review, we collected data of cervical biopsy of four groups: ASCUS, LSIL, ASC-H, and HSIL. Using Cochran-Mantel-Haenszel statistics method, we compared the pathologic results of cervical biopsy of ASCUS group to LSIL group, and ASC-H group to HSIL group in the same manner. Results: Of 216,723 women enrolled for Papanicolaou (Pap) smears, after excluding the results of cervical biopsy other than WNL, CIN1, CIN2, CIN3/CIS, and cervical cancer, total 855 women were included in this study. There were 161 women with cytology result of ASCUS, 425 women with LSIL, 22 women with ASC-H, and 247 women with HSIL. According to the Cochran-Mantel-Haenszel statistics, the p-value for the comparison between ASCUS group and LSIL group was 0.00068 (p< 0.05), which was statistically significant by proving differentiation between two groups. Conversely, the p-value for the association between ASC-H and HSIL was 0.26834 (p >0.05) which accepted the hypothesis of the study by not distinguishing two groups. Overall, the results of cervical biopsy between ASCUS and LSIL did show differentiation, yet ASC-H and HSIL did not have significant difference. Conclusion: Although the cytology results of ASCUS and LSIL are necessary to be distinguished, making distinction between the cytology of ASC-H and HSIL in the clinical practice may not be necessary. Further studies of comparing cytology of these groups may be helpful to simplify the colposcopy results in the real world.
가상 검증 시뮬레이션 환경을 통한 에어백 충돌 테스트 방법 제안
서윤정(Younjeong Seo),김재경(Jaekyung Kim),임준식(Junsik Yim),김범섭(Beomseop Kim) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
The most effective and effective function in vehicle safety is an airbag device. An airbag is a safety device that rapidly inflates to protect the driver or occupants in an automobile accident. The airbag inflates the airbag by generating nitrogen gas when a collision sensor and an electronic control unit detect the amount of impact of the vehicle during a collision and exceed the collision limit. In general, when driving at a speed of about 30 km/h or more, the collision sensor detects and deploys when a strong collision is received from the front or side within 30°. (Each country has different laws and regulations) An airbag is effective in reducing the risk of fatal injury or death in a frontal collision and may not deploy unless a seatbelt is worn as an auxiliary restraint device for a seatbelt. In addition, there are various types of airbags, such as side airbags and curtain airbags, in addition to those mounted on the steering wheel or dashboard. Automotive airbags are manufactured in accordance with the regulations on certification and inspection methods and procedures (Korean Standards, Ministry of Environment Notice No. 2021-118) and the regulations on manufacturing automobile test inspections and procedures (Korean Standards, Ministry of Environment Notice No. 2022-73). You must undergo an authentication test. In order to receive a certification inspection, you must follow the vehicle certification test and inspection work procedures of the Korea Environment Corporation. A similar certification procedure exists internationally. The cost of certification inspection varies depending on the type of vehicle and test items, but generally costs between several million won and tens of millions of won. The certification inspection time varies depending on the condition of the vehicle and the test items, but generally takes several days to several weeks. In the case of verification through a verification environment through Hil, it is difficult to configure the same environment as an actual vehicle crash test. The disadvantage is that the range of motion for simulation of impulse and ACU movement is small, and it is difficult to accurately simulate the numerical or quantitative values desired by the tester. The virtual verification environment is a simulation platform that emulates the automobile SW platform, system, and vehicle dynamics model as a digital twin and can pre-verify SW logic and vehicle functions. Compared to the Hil verification environment, it has the advantage of configuring an environment identical to reality and being able to verify by simulating shock amounts and ACU movements at a level similar to reality. Through this, time and cost savings can be expected as mentioned above.
민윤정(Younjeong Min),서주영(Jooyoung Seo),최병주(Byoungju Choi) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.2
소프트웨어의 품질 향상을 위해서는 무엇보다도 프로세스의 개선이 필요하다는 인식이 증대되고 있다. 그 중에서도 실질적으로 프로덕트의 품질과 직결된 테스트 프로세스의 개선이 무엇보다 시급한데, 그러기 위해서는 테스트 프로세스의 현재 상태를 파악하고 분석하는 과정이 선행되어야 한다. 본 논문에서는 테스팅 관점에서 소프트웨어의 품질을 고려하여 개발된 SETP(Simple and Easy Test Process) 핵심 모델과, 이를 바탕으로 테스트 프로세스를 평가하고 분석하는 자동화 도구 Legba를 제안한다.
학습자의 심리적 특성을 고려한 사회과 온라인 토론학습 전략
이윤정(Younjeong Lee) 한국사회과교육연구학회 2014 사회과교육 Vol.53 No.1
이 연구는 그동안 사회과 온라인 토론학습에서 간과하였던 학습자의 심리적 특성에 대해 규명하고 이를 고려한 새로운 사회과 온라인 토론학습 전략을 제시한 연구이다. 이를 위해 교육공학 및 교육정보학, 사회교육, 언론 정보학 영역에서의 선행 연구 결과들을 살펴봄으로써 온라인 토론 과정에서 발생하는 학습자의 심리적 특성을 파악하였다. 온라인 토론 과정에서 나타나는 학습자의 심리적 특성에는 호기심, 흥미, 참여에 대한 부담감, 고립에 대한 두려움과 회피심리, 정서적 유대감을 들 수 있다. 이들 중에서 토론 효과를 높일 수 있는 긍정적 심리적 특성인 호기심과 흥미, 정서적 유대감은 증진시키되 부정적 심리적 특성인 참여에 대한 부담감, 고립에 대한 두려움과 회피심리는 감소시키는 방향으로 사회과 온라인 토론 전략을 모색하였는데 이렇게 수립된 토론 전략은 다음과 같다. 첫째, 자유로운 글쓰기에서 논리적 글쓰기로 토론 단계를 구성한다. 둘째, 온라인 토론 기초능력 개발 프로그램을 실시한다. 셋째, 비슷한 의견을 가진 동료와의 동조 경험을 제공한다. 넷째, 학습자 주도의 주제선정 과정을 마련한다. 다섯째, 창의성을 발휘할 수 있는 토론 자료를 활용한다. The purpose of this study is to develop the strategies of online discussion study considering psychological traits of student. For the this purpose, I searched for many works which are the study searched for the previous research about Educational technology, Communications, Social Studies. It figured out that the psychological traits of student participating the online discussion study. In online discussion study, there are some psychological traits which are containing the curiosity, interest, academic pressure for writing the logical digital text, fear of isolation, feeling of evasion and emotional bonds. The basic direction to make strategies of online discussion is to increase the positive psychological traits such as curiosity, interest, emotional bonds and decrease the negative psychological traits such as academic pressure for writing the logical digital text, fear of isolation, feeling of evasion. The effective strategies of online discussion study considering psychological traits of student can be summarized as follows. First, to construct a step of discussion that students writing freely to logically. Second, to make the program that students can develope increasing discussion ability based on online atmosphere. Third, teachers provide a program to share an experience to student who have similar opinion. Fourth, teachers also give the opportunity that student can select the main topic themselves. Fifth, to use many creative discussion materials for students.
장윤정(Chang Younjeong) 한국영화학회 2004 영화연구 Vol.0 No.23
Film noir emerged in forties. These films combine several mixed genres and exhibit distinctive characteristics of dark visual setting and gloomy stories. Films with this salient visual styles are affected by German Expressionism, French Poetic Realism . Film noir is a film movement or tone that represents the atmosphere of unstable societies after World War Ⅱ and frankly shows pessimistic and un치ear future. In 1940~50 period, tile restricted of themes and issues broached by Hollywood feature film was the result of censorship. In order to forestall outer intervention, film industry construct the Production Code Administration (PCA). The Production Code was an attempt to make film promote home and family values. However these restrictions begin to loosen during tile war as public attitudes became progressive. So, noir filmmaker became adept circumventing tile Codes regulation though ellipses and suggestive mise-en scene. The distinctive characteristics of film noir are chiaroscuro lighting, a femme fatale, urban setting, voice-over narration, convoluted plot structure and so on. To visualize gloomy stories, film noir adopts various new techniques of visual representation. After War, the Truman administration adopted an increasingly conservative atmosphere. McCarthyism, me anti-Communist witch-hunting created a climate of fear and paranoia in American society. Then, tile left-liberal writers and directors used film noir to criticize on American society's competitive capitalism. These films reflect me society, especially dark atmosphere and pessimistic future with film noir styles. Dark screens and dismal stories effectively represent McCarthyism, a result of me cold war induced by ideological differences, affected surging tear and anxiety of people.