• Journal of Korean Philosophical Society
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• v.126
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• pp.159-190
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• 2013

Feminist critics have criticized Aristotle as a sexist, misogynist, male chauvinist or masculinist, or, at least, their chief spokesman. Indeed, he says in the Politics that the male is by nature superior to the female and, also, that women possess the same deliberative part of the soul as men, but without authority, etc. In the Generation of Animals, he claims that the male supplies the form and the efficient cause, whereas the female supplies the material cause only in reproduction and describes the female as a mutilated being. When these remarks of Aristotle are read without considering their overall context, it hardly seems possible for him to escape from such severe criticism and condemnation. On the contrary, in what follows, I shall claim that the criticism and condemnation that has been ascribed to him is unfair. Although it is undeniable that Aristotle has made such remarks, it does not immediately follow that he was a sexist. In particular, I shall show his view on the status of men and women by analysing the value of matter and form ascribed in two of his main philosophical theories, the theories of hylomorphism and four causes. In consequence, we shall arrive at the conclusion that, since the theories do not imply the significance or necessity of either form or matter alone, but of both, there is no sign of sexism or misogyny or male chauvinism in Aristotle.

• 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.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2021.04a
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• pp.28-29
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• 2021

애기똥풀(Chelidonium majus L. subsp. asiaticum H.Hara)의 지상부는 백굴채라고 불리며 항암, 항균 등의 효능을 가지고 있어 예로부터 약용으로 이용되었다. 그러나 천연 약용소재로 개발가치가 높음에도 불구하고 실생묘의 대량 확보를 위한 종자번식 관련 연구가 전무한 실정이다. 본 연구에서는 애기똥풀의 발아 및 휴면 특성을 분석함으로써 추후 종자번식을 위한 기초자료를 제공하기 위해 수행되었다. 실험재료로 사용된 애기똥풀 종자는 2019년 6월 경상북도 봉화군에서 채종하였으며 정선 후 건조상태로 실온(25℃)에 보관하였다. 종자의 1000립중은 0.57±0.01g이며, 배종비는 0.21±0.12로 조사되어 형태적으로 미성숙한 배를 가지고 있다. 종자의 활력은 테트라졸륨 검정을 통해 79%로 확인되었다. 종자의 기본 함수율은 7.64±0.25%였으며, 침지 2일 차에 최대함수율(32.6±0.34%)에 도달하였다. 초기 발아검정은 25/15℃ (light/dark, 16/8h)챔버에서 명조건과 암조건으로 구분하여 30일간 진행하였으며, 암조건은 알루미늄 호일로 광을 완전히 차단하고 최종 발아율만 조사하였다. 발아율을 조사한 결과, 명조건은 0.75±0.80%, 암조건은 5.50±1.55%로 조사되어 형태적인 휴면과 생리적인 휴면을 모두 갖는 것으로 판단하였다. 애기똥풀의 생태적인 환경을 고려하여 12주의 Summer temperature(S12, 25/15℃, 16/8h)로 층적하고 연속하여 Autumn temperature(A, 15/10℃, 16/8h)를 4주(A4)와 8주(A8)로 달리하여 종자의 휴면타파를 유도하였다. 층적 후 발아율은 모두 증가되었으며, S12-A4(54%)는 S12-A8(24.5%)에 비해서 휴면타파에 효과적이었다. 휴면타파 효과의 증진을 위해 층적처리한 종자를 500ppm의 GA₃와 GA₄₊₇에 각 24시간동안 4℃에서 침지시킨 뒤 동일한 조건에 파종하였다. GA₃가 처리된 S12-A4는 발아율이 82.0%, S12-A8는 30.8%로 유의적으로 증가하였으나 GA₄₊₇ 처리는 S12-A4(48.5%)와 S12-A8(21.3%)에서 발아율 향상 효과가 없었다. 결론적으로 애기똥풀의 휴면타파를 위해서 12주의 Summer temperature와 4주의 Autumn temperature 변온층적과 추가 GA₃ 처리가 휴면타파를 위한 효과적인 처리방법으로 판단된다.

• Journal for History of Mathematics
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• v.22 no.3
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• pp.1-30
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• 2009

Frege's logicism has been frequently regarded as a development in number theory which succeeded to the so called arithmetization of analysis in the late 19th century. But it is not easy for us to accept this opinion if we carefully examine his actual works on real analysis. So it has been often argued that his logicism was just a philosophical program which had not contact with any contemporary mathematical practices. In this paper I will show that these two opinions are all ill-founded ones which are due to the misunderstanding of the theoretical place of Frege's logicism in the context of contemporary mathematical practices. Firstly, I will carefully examine Cantorian definition of real numbers and Frege's critiques of it. On the basis of this, I will show that Frege's aim was to produce the purely logical definition of ratios of quantities. Secondly, I will consider the mathematical background of Frege's logicism. On the basis of this, I will show that his standpoint in real analysis was much subtler than what we used to expect. On the one hand, unlike Weierstrass and Cantor, Frege wanted to get such real analysis that could be universally applicable. On the other hand, unlike most mathematicians who insisted on the traditional conceptions, he would not depend upon any geometrical considerations in establishing real analysis. Thirdly, I will argue that Frege regarded these two aspects - the independence from geometry and the universal applicability - as those which characterized logic itself and, by logicism, arithmetic itself. And I will show that his conception of real numbers as ratios of quantities stemmed from his methodological maxim according to which the nature of numbers should be explained by the common roles they played in various contexts to which they applied, and that he thought that the universal applicability of numbers could not be adequately explicated without such an explanation.

• Journal of Food Hygiene and Safety
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• v.16 no.2
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• pp.103-110
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• 2001

Predictive food microbiology(PFM) is an emerging area of food microbiology since the later 1980’s. It does apply mathematical models to predict the responses of microorganism to specified environmental variables. Although, at present, PFM models do not completely developed, models can provide very useful information for microbiological responses in HACCP(Hazard Analysis Critical Control Point) system and Risk Assessment. This study illustrates the possible use of PFM models(PMP: Pathogen Modeling Program win5.1) with milk in several elements in the HACCP system, such as conduction of hazard analysis and determination of CCP(Critical Control Points) and CL(Critical Limits). The factors likely to affect the growth of the pathogens in milk involved storage fixed factors were pH 6.7, Aw 0.993 and NaCl 1.3%. PMPwin5.1 calculated generation time, lag phase duration, time to level of infective dose for pathogens across a range of storage (Critical Control Points) and CL(Critical Limits). The factors likely to affect the growth of the pathogens in milk involved storage temperature, pH, Aw and NaCl content. The factors likely to affect the growth of the pathogens in milk involved storage temperature, pH, Aw and NaCl content. The variable factor was storage temperature at the range of 4~15$^{\circ}C$ and the fixed factors were pH 6.7, Aw 0.993 and NaC 1.3%. PMPwin5.1 calculated generation time, lag phase duration, time to level of infective dose for pathogens across a range of storage temperature.

• Korean Journal of Childcare and Education
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• v.5 no.1
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• pp.81-101
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• 2009

This study analyzed a total of 37 studies about bi-lingulism and English education as a foreign language published in 8 academic journals in early childhood education or child development fields. Research topics, participants, methods, and variables in the studies were categorized and descriptively analyzed. The research findings which had been statistically investigated were also summarized. The most frequently studied research topics were children's development and English education program exposure, actual conditions of English education in preschool settings and effectiveness of specific English programs for preschool children. However, children's home characteristics were seldom included as research variables and no research investigated so called English preschools. Several studies reported that bi-lingual children may have different language development paths from mono-lingual children but they eventually have comparable language abilities to mono-lingual children. Also some studies reported that, when learning English as a foreign language in school settings, older children can handle more information regarding English than younger children, resulting in better outcomes of older children. Exposure to two languages in early childhood seems to contribute to young children's meta linguistic awareness but the long term effect of English education in early childhood should be further studied. Several English education programs for preschool settings were developed and the effectiveness were investigated. Even though most of them reported that their programs were effective to children's English ability or interests, the results should be carefully interpreted because their research designs and methods were not rigorous.

• Journal of Navigation and Port Research
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• v.38 no.6
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• pp.695-700
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• 2014

This paper analyzed the peak stage of typhoons by using 10 years(2002~2011) data. The main purpose of this research is to provide the characteristic and tendency of peak stage of typhoons for navigators of ship. The research results show that typhoons of maximum wind speed 20~29m/ s and 40~49m/s account for 25% and 24% of whole typhoon, respectively. Ultra Typhoon of maximum wind speed 50m/ s and over accounts for 24% of whole typhoon. Peak stage mean arrival time from tropical depression and tropical storm are 3.6 days and 2.1 days, respectively. Duration time of peak stage is within 2 days and mean duration time of peak stage is 31hours. Latitudes and longitudes that mainly appears peak stage are at $15^{\circ}{\sim}25^{\circ}N$ and $120^{\circ}{\sim}140^{\circ}E$. This dangerous sea area has the oceanic environmental characteristic that Taiwan and Philippines are locate west side and a vast the North Pacific occupy east side. Navigators of ship in this dangerous sea area keep strict watch. Ultra Typhoons occur most frequently in September. Peak stage of Ultra Typhoon also appears at $15^{\circ}{\sim}25^{\circ}N$ and $120^{\circ}{\sim}140^{\circ}E$.

• Geophysics and Geophysical Exploration
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• v.16 no.1
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• pp.53-58
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• 2013

It was introduced a seismic mini-array that could monitor microseismicity efficiently and analyzed seismic data obtained from the mini-array that was operated from December 19, 2012 to January 9, 2013. The mini-array consisted of a six channel data logger, a central 3 components seismometer, and a tripartite array of vertical sensors centered around the 3 components seismometer as an equilateral triangle with about 100 m aperture. All seismometers that had the same instrument response were connected a 6 channel data logger, which was set to record seismograms at a sampling rate of 200 sps. During the three weeks of campaign, a total of 16 microearthquakes were detected. Using time differences of P wave arrivals from the vertical components, S-P time from 3 components seismometers, and back azimuth from the seismic array analysis, it was possible to locate the hypocenter of the microearthquake even with one seismic miniarray. The epicenters of two nearest microearthquakes were a quarry site located 1.3 km from the mini-array. The records of quarry blasting confirmed the our analysis.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.3
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• pp.461-466
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• 2010

A cylindrical UV sterilization system was developed to decrease microorganisms in centrifuged Takju (CT). CT was run through 110 strips of honey comb type-teflon tubes and 9 UV lamps (1395 W) were equipped between teflon tubes. The optimum sterilization condition of CT was fixed for 1.5 min at 2 L/min in overall quality aspects; also, 5~6 log cycle decrease of viable cell numbers of total bacteria and yeast was observed at this operating condition. Quality changes of UV-sterilized CT were examined by UV irradiation of CT followed by storing at $30^{\circ}C$ for 8 days. To evaluate quality changes of UV-sterilized CT, pH, amino nitrogen content, acidity, reducing sugar content and viable cell numbers of total bacteria and yeast were measured. The growth of yeast and bacteria was retarded, showing around $10^8\;CFU/mL$ even after 4 days and $10^8\;CFU/mL$ after 6 days, respectively. Also, UV sterilized CT showed no changes in pH, titratable acidity, and amino nitrogen content during storage except reducing sugar content. UV sterilization did not cause significant difference in L, a, and b values between CT and UV-sterilized CT over the storage period.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.371-371
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• 2019

우리나라는 홍수기(6~9월)에 집중되는 기상패턴과 하천 중하류부에 발달된 도시의 개발특성으로 인하여 가장 중요한 자연재해 중 하나로 홍수 및 도시침수가 거론되고 있다. 과거 집중호우로 침수 피해가 발생한 사례를 살펴보면, 피해가 발생하는 지역은 지방하천 및 소하천을 중심으로 형성된 도시지역이다. 중앙 지방 정부는 수차례 침수 피해를 겪으며 사후관리가 아닌 재난예방 및 사전관리 등의 방안 마련을 강조하고 있다. 하지만 기후변화에 의한 기상의 불확실성으로 치수 중심의 물관리 및 중 소하천의 하천 특성으로 여전히 홍수 발생에 대비할 수 있는 골든타임 확보 등에 어려움을 겪고 있다. 이러한 어려움을 극복하기 위해 사전 예방적 차원에서의 홍수대응 방안으로 중 소하천을 담당하는 지자체 중심의 홍수피해 저감 방안이 필요하다. 본 연구에서는 A 지자체를 대상으로 모니터링 대상 경계를 설정하여 우량 알람 기준을 예비알람, 주요 관측지점에 대해 강우에 따른 수위 상승 정도를 홍수대응 기준인 직접알람과 연계함으로써 예방적 재난대응 체계를 구축하였다. 모니터링 대상 지역은 해당 지자체를 포함하면서 유역 개념을 적용하여 만경강유역 전체로 설정하였다. 만경강 유역 내 유관기관(지자체, 환경부, K-water, 기상청 등)이 관할하는 우량국(41개소) 및 수위국(28개소), 저수용량이 30만톤 이상이 되는 농어촌공사 저수지(7개소)를 고려하여 홍수분석 모형(COSFIM)을 구축하였다. 해당 모형은 2018년 8월 호우사상에 대해 주요 수위관측 지점에서 $R^2$가 0.8 이상의 우수한 검증 결과를 보였다. 구축된 모형을 통해 예상강우량별 하천 내 수위지점별 최고수위, 최대유량, 도달시간 등 예상 조견표를 제시하여 호우 발생시 지자체 담당자가 참고할 수 있도록 제시하였다. 또한 수위지점별 홍수대응 기준은 평시, 관심, 주의, 경계, 심각 단계로 구분하여 담당자가 수위별 위험 정도를 인지할 수 있도록 지점별 도달되는 수위의 위험 정보를 알람기준으로 제시하였다. 홍수분석 모형은 상류에 위치한 주요시설물의 운영현황을 연계하고 있어 실제 강우 발생 시 기상예보를 고려하여 하천 내 수위관측 지점별 수위 상승 정도를 예상함으로써 사전에 홍수에 대비할 수 있는 단계별 시간 확보에 활용 가능하다. 향후 홍수대응기준은 하천 환경 변화를 반영하여 지속적인 보완이 필요하며 유관기관과의 수문자료 공유체계 확대로 예방적 차원의 홍수 대응 체계가 구축되어야 할 것이다.