Alcohol extract of Geum Chung Cho alleviates alcohol-induced short-term memory impairment in gerbils

Han-Sam Cho,Tae-Woon Kim,Sang-Seo Park,Mal-Soon Shin,Jae-Min Lee,Eun-Sang Ji,Chang-Ju Kim 한국운동재활학회 2015 한국운동재활학회 학술대회 Vol.2015 No.10

Chronic ethanol consumption leads to memory impairment and also induces brain damage. The hippocampus has been particularly regarded as a possible target organ of alcoholic intoxication, since this structure plays a prominent function in memory processes. Cordyceps has been used as a traditional medicine in Asian countries for a long time. Different types of Cordyceps extract were reported to have various pharmacological activities including anti-tumor, anti-inflammatory, anti-viral, and immune modulatory effects. Guem Chung Cho is an artificial cultivated Cordyceps, and was supplied from GCordy (Seoul, Korea). Ethanol extract of Cordycep (50 g) was made by rotary evaporate, and resulting powder 8.29 g was obtained (yield 17%). In the present study, we investigated the effects of ethanol extract of Geum Chung Cho on short-term memory, cell proliferation and apoptosis in the hippocampus of ethanol-treated gerbils. The gerbils were divided into 5 groups (n = 10 in each group): Control group, alcohol-treated group, alcohol-treated and 0.001 mg/kg Geum Chung Cho-applied group, alcohol-treated and 0.01 mg/kg Geum Chung Cho-applied group, and alcohol-treated and 0.1 mg/kg Geum Chung Cho-applied group. Gerbils in the alcohol-treated groups were orally administered ethanol (1 g/kg) once a day for 2 weeks. Gerbils in the Guem Chung Cho-applied groups were orally administered Guem Chung Cho extract at each dosage 1 hour before ethanol consumption. Our results revealed that consumption of alcohol for 2 weeks deteriorated short-term memory, induced apoptosis, and inhibited cell proliferation, and reduced expressions of brain-derived neurotrophic (BDNF) and tyrosine kinase B (TrkB). However, Guem Chung Cho treatment alleviated alcohol-induced short-term memory impairment through enhancing cell proliferation and BDNF expression with inhibiting apoptosis in the hippocampus. Guem Chung Cho showed maximum effects at 0.1 mg/kg. Based on these results, alcohol extract of Guem Chung Cho may provide therapeutic value for the treatment of chronic alcohol-inducted brain injury. This study was supported by GCordy company.

고온에서 HAN 계열 추진제 액적의 거동에 대한 연구

황창환(Chang Hwan Hwang),백승욱(Seung Wook Baek),한조영(Cho Young Han),김수겸(Su Kyum Kim),전형열(Hyung Yeol Jeon) 한국연소학회 2012 KOSCOSYMPOSIUM논문집 Vol.- No.45

The droplet behavior of 83.9 wt.% HAN water solution was investigated experimentally with various ambient temperature and nitrogen environment. At the initial stage of evaporation under thermal decomposition temperature of HAN, gradual decreasing of droplet diameter was observed. After that, the droplet started to expand due to the internal pressure build up by water nucleation inside the droplet. The micro explosion was observed at higher temperature than the decomposition temperature of HAN and the remaining droplet showed similar behavior of single composition droplet. The decreasing rate was augmented as the ambient temperature increasing.

NPIs and Rhetorical Question in Korean

Cho, Sae Youn,Lee, Han Gyu 대한언어학회 2001 언어학 Vol.9 No.1

Cho, Sae-Yom and Lee, Han.-Gyu. 2001. NPIs and Rhetorical Question in Korean. The Linguistic Association f Korea Journal, 9(1), 145-166. This paper provides a syntactic end pragmatic account of the Negative Polarity Items (LAPIS) end Rhetorical Question (RQ) in Korean, which would be hard to explain under current syntactic views (Sohn, 1995). For a theory of NPIS to be adequate, it must answer the following questions'. (i) What is an appropriate constraint to NPIS to explain the difference in distributional behaviors between Declarative Sentences (DS) and RQ?, and (ii) Why does such a difference exist depending o constructions? To answer these questions, we propose that the distributional behavior can be dealt with by specifying lexical properties of NPIs still positing a construction type, and suggest that sentences with NPIs can be fully understood by discerning the pragmatic role of NPIs at issue. (Honam University and Kyung Lee University)

최근의 우주발사체용 청정추진제 추력기 동향 검토

조인현(Cho, In-Hyun),한상엽(Han, Sang-Yeop) 한국항공우주연구원 2015 항공우주산업기술동향 Vol.13 No.2

일원추진제 추력기는 위성이나 우주발사체에 광범위하게 사용된다. 많은 경우 하이드라진을 추진제로 사용하고 있다. 그런데 하이드라진은 독성이 강하고 발사켐페인에 사용하기엔 위험성이 높다. 최근 저독성(청정) 추진제가 하이드라진을 대체하는 추진제로서 각광을 받고 있다. 이는 독성추진제 생산, 저작, 사용에 따른 비용증가가 주원인이다. ADN, HAN등이 차세대 추력기용 추진제로 거론되면 고순도 과산화수소 또한 많은 연구가 이루어지고 있다. 본 연구는 우주발사체나 위성 자세제어시스템용 추력기에 청정추진제를 적용한 최근의 사례를 정리하였다. ADN, HAN 그리고 과산화수소가 새롭게 개발하는 여러 발사체에 적용되고 있다. Mono-propellant thrusters are widely used for both satellites and space launch vehicles. These thrusters are mostly using hydrazine as a propellant. However, hydrazine is highly toxic and dangerous for handling in the period of launch vehicle campaign. Recently, low toxity (green) liquid propellant have attracted attention as possible replacements for hydrazine. This is due to the significant increase in the cost of production, storage and handling of toxic propellants. This paper review the application of green propellant thrusters for space launcher or satellite attitude control system on the development process go on. ADN, HAN and hydrogen peroxide thruster system is adapted for new space launcher attitude control system.

영산 조용기 목사의 영적 식별 사례 연구

조한상 ( Cho¸ Han Sang ) 한세대학교 영산신학연구소 2021 영산신학저널 Vol.- No.58

영적 식별이란 하나님의 뜻이 어디에 있는지 알아보는 유용한 도구이다. 복잡하고 힘든 세상을 살아가고 있는 현대인들은 매 순간 다양한 영들의 움직임 가운데 놓여 있다. 따라서, 우리는 하나님의 영의 인도하심을 따라 선택하기도 하지만, 또 다른 경우에 악한 영에 휩쓸리는 경우도 종종 있다. 이러한 순간 식별은 하나님의 뜻이 무엇인지 알도록 도움을 준다. 그동안 영적 식별은 그 중요성에도 불구하고 개신교 영역에서 소홀히 다루었지만, 이는 초대교회로부터 현대에 이르기까지 유구한 전통을 지닌 영적 유산이다. 그러므로 본 논문은 영산 조용기 목사의 생애에 나타난 사례를 중심으로 그의 영적 식별을 다루었다. 복음 전도자인 영산 조용기 목사는 성령님과 동행하여 희망의 메시지를 선포하여 세계 최대 교회를 세운 복음 전도자이다. 그는 여의도순복음교회에서 50년 동안 사역하면서 영적 식별을 경험하였고, 하나님의 인도하심의 방법을 배웠다; 하나님의 말씀, 뜨거운 갈망, 분명한 이해와 평안, 환경, 마지막으로 꿈과 환상을 통해서 하나님의 뜻을 알아갔다. 이는 영적 거장들인 이냐시오 로욜라 및 조나단 에드워즈의 식별 규범에 일치하는 것이며, 현대 영성학자인 엘리자베스 리버트의 이론과도 일치함을 알 수 있다. 코로나19 이후, 우리는 삶의 많은 변화를 경험하였고, 영적 혼돈과 다양한 선택과 결정을 해야 하는 상황에 직면하여 있다. 모든 것이 급변하는 상황에서, 한국교회 목회자와 성도들은 영산 조용기 목사의 영적 식별 사례를 나침반으로 삼아 사용한다면, 각자의 삶의 자리에서 직면한 식별의 이슈를 해결하는 데 도움이 되리라고 본다. 한국교회 목회자와 성도들이 각자 개인의 생각과 가치관에 근거한 것이 아니라 성서적, 역사적 근거 위에서 하나님의 뜻을 식별하여 더 성숙한 그리스도인과 공동체로 세워질 수 있기를 소망하는 바이다. Spiritual discernment is a useful tool to find out where God’s will is. Modern people living in a complex and difficult world are in the midst of various movements of spirits every moment. For that reason, sometimes our choices are made in accordance to the guidance of God’s spirit, but, in other cases, we are often swept away by evil spirits. Spiritual discernment, therefore, helps us know what God’s will is. It is a spiritual heritage that has a long tradition from early churches to modern times. However, spiritual discernment has been neglected in the Protestant realm despite its importance. This paper discusses the principles of spiritual discernment in Youngsan’s life. Reverend Youngsan Yonggi Cho is an evangelist who had accompanied the Holy Spirit to proclaim a message of hope and had built the world’s largest church. He had experienced spiritual discernment in his 50 years ministry at the Youido Full Gospel Church, and then learned the methods of God’s guidance; God’s word, burning desire, understanding and peace, evidence through circumstances, and dream and vision. This guidance is consistent with the discernment rules of spiritual masters such as Ignatius Loyola and Jonathan Edwards. Furthermore, it is consistent with the theory of modern spiritualist Elizabeth Liebert. After the outbreak of COVID-19, we have experienced lots of change in our lives and then confronted spiritual chaos and situations where we have to make various choices and decisions. In those situations where everything changes rapidly, it will be helpful for pastors and members in the Korean churches to solve the various issues in their life settings using Youngsan’s case of spiritual discernment as a compass. I hope that they can be more mature Christians and communities by discerning God’s will on a biblical and historical basis, not based on individual thoughts and values.

운동 종료 후의 당질·단백질·지질의 혼합물 섭취가 근 글리코겐 회복에 미치는 효과

육조영,송영주,류기성,장창현,김한수,김대경 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

In this study 8 male athletes and 8 female athletes for matches requiring endurance were examined for the purpose of comparison and analysis on the effect of absorption of sugars and effect of absorption of sugars+protein+fats restoration of muscular glycogen after elapse of 4 hours subsequent to closing 90 minutes exercise. (Amount of energy absorbed was same). Examinees were tested with 3 kinds of performance such as CPF Performance whereby they were made to take ① sugars (0.75 g/㎏) and protein (0.1g/㎏) and fats (0.02 g/㎏) after elapse of 1 hour subsequent to long hours of exercise and CHO Performance whereby examines were made to take ② sugars (1g/㎏) alone and Performance whereby they were made to take ③ placebo (which does not contain any sugars, protein or fats). Also the examinees took meals which had same amount of energy and nitrogen during the Performance on the date prior to experiment or on the date of experiment. Women during the exercise showed significantly higher rate of oxidation of fats, basic element of energy than that of men. In CHO Performance and CPF Performance value of blood sugar and density of insulin were significantly higher in comparison with performance with placebo. At such cases there was no difference between different genders. Same kind of phenomena were confirmed with restoration of muscular glycogen. From such fact it could be observed that absorption of fats alone and absorption of sugars+protein+fats in comparison with absorption of placebo after exercise promoted relatively higher level of restoration of muscular glycogen for both men and women.

한강 상수원의 조류 분포 및 생태지수 조사

조은주 ( Eunju Cho ),김민정 ( Minjung Kim ),최연규 ( Yonkyu Choi ),김새봄 ( Saebom Kim ),한지선 ( Jisun Han ),김유나 ( Euna Kim ),정종순 ( Jongsoon Jung ),차영섭 ( Yeongseop Cha ),김복순 ( Bogsoon Kim ) 한국물환경학회(구 한국수질보전학회) 2018 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2018 No.-

반말체 어미 ‘-게’의 의미기능 연구

이한민 ( Lee Han-min ),조은영 ( Cho Eun-young ) 국어학회 2015 국어학 Vol.74 No.-

본고는 조은영·이한민(2011)에서 정리하였던 연결어미에서 종결어미화된 ‘-게’의 의미기능과 문법화 과정의 연장선상에서 추가적인 ‘-게’의 용법으로 [가정]과 [추측유도]의 의미기능을 살피고자 하였다. [가정] ‘-게’구문은 조건절인 선행절과 결과절인 후행‘-게’절로 구성되며, 선행절의 부정을 이끄는 반어적 진술의 수사의문문으로 사용된다. [가정] ‘-게’는 선어말어미 ‘-었-’이 결합할 수 있는 점, 후행 ‘-게’절이 단독으로 쓰일 수 없는 점, 의미적으로 후행절의 내용이 선행절을 강조하는 기능을 한다는 점에서 [완료결과] ‘-게’와 연관성을 보인다. [추측유도] ‘-게’구문은 화자가 알고 있는 어떠한 사실에 대하여 청자의 ‘추측을 유도’하는 발화에서 사용되며, 설명의문문 형식이나 선택의문문 형식으로 쓰이지만, 청자로부터 신정보를 얻기 위한 질문으로는 사용되지 않는다. [추측유도] ‘-게’절은 선어말어미 ‘-었-’이 결합할 수 있는 점, 이미 이루어진 상황 혹은 확정된 사실에 대한 것이라는 점에서 [완료결과] ‘-게’와 유사한 의미를 보인다. 그러나 단독으로 사용될 수 있는 구문인지, 발화의 초점이 ‘-게’절에 있는지의 여부에서 차이를 보인다. [가정]은 [완료결과]와 통사적, 의미적으로 비슷한 부분이 많고, [완료결과]와 동일한 형식의 문장이 [가정]의 쓰임을 보이는 과도기적 형태도 존재한다. 따라서 [가정]은 [완료결과] 이후에 연결될 수 있는 단계로 볼 수 있다.[추측유도]의 경우에는 [완료결과], [가정]과 통사적, 의미적으로 공통적인 부분이 있지만, 조은영·이한민(2011)에서 정리한 종결어미 ‘-게’의 단계별 의미기능과 함께 다룰 수 있을지에 대해서는 결론을 내리지 못하였다. [추측유도]가 연결어미 ‘-게’에서 문법화한 종결어미가 아니라 다른 기원을 갖는 ‘-게’의 의미기능일 수도 있다는 가능성도 열어 두어야 할 것이다. 다만, [추측유도] ‘-게’가 공시적인 쓰임에서 연결어미 ‘-게’에서 문법화한 종결어미의 의미기능들과 연관성을 가지는 것은 분명하다. This paper tries to figure out the additory usage of final ending ‘-ge’―the semantic function of [supposition] and [assumption inducement]― as an extension to the grammaticalization process of final ending ‘-ge,’ originated from a connective ending ‘-ge’ organized by Cho, Eun-Young & Lee, Han-Min (2011). The sentence structure of [supposition] ‘-ge’ is consisted of the antecedent clause, which is a conditional clause, and the following clause ‘-ge’ clause, and is used as a rhetorical interrogative of an ironic statement denying the antecedent clause. It also shows some correlation with [completion result] ‘-ge’, considering the fact that ‘-ge’ can be combined with the tense prefinal ending ‘-eoss-’, and that following ‘-ge’ clause cannot be used by itself, and that the following clause can emphasize the antecedent clause semantically. The sentence structure of [assumption inducement] ‘-ge’ is often used when inducing a listener to make an assumption of a matter that a speaker already knows. However, it is not used as a question to get a new information from the listener although it may be used in a form of a wh-question or an alternative question. [Assumption inducement] ‘-ge’ clause shows some similar meaning with that of a [completion result] ‘-ge’ clause regarding the fact that it can be combined with the tense prefinal ending ‘-eoss-’ and that this clause is about something that has already happened or determined. However, it shows some differences in that whether this sentence structure can be used alone or its focus point of utterance is on ‘-ge’ clause itself. There exists several similarities between [supposition] and [completion result] in syntactic and semantic context, in addition to a transitional phase in which a sentence is used as a [supposition] clause when sentence structures exhibit identical features to [completion result]. Thus, it can be seen that [supposition] is a connecting stage following the [completion stage]. In case of [assumption inducement], there exists several similarities between [assumption inducement], [completion result] and [supposition] in syntactic and semantic context. However, the authors were not able to draw a definitive conclusion as to whether [assumption inducement] can be dealt with changing meanings of semantic functions of final ending ‘-ge,’ organized in Cho, Eun-Young & Lee, Han-Min (2011). Thus, there is an implied possibility that [Assumption inducement] may not be a grammaticalized final ending ‘-ge’ but that of different origins with dissimilar semantic functions. In the synchronic use, however, it is certain that [assumption result] ‘-ge’ has a definitive correlation with semantic functions of final endings that are grammaticalized in the connective ending ‘-ge.’

벌매 Pernis ptilorhynchus의 번식보고

조해진(Hae-Jin Cho1),이영석(Young-Suk Lee),강태한(Tae-Han Kang),김인규(In-Kyu Kim),우희철(Hee-Chul Woo),이한수(Han-Soo Lee) 한국조류학회II 2010 한국조류학회지 Vol.17 No.1

2009년 8월 16일 강원도 홍천군 북방면 일대에서 벌매의 번식을 확인하였다. 이 종은 국내에는 번식하는 것으로 추정은 하고 있었지만, 실제 번식 둥지가 확인된 것은 첫 사례라고 할 수 있을 것이다. 이에 번식에 대한 보고하고자 한다. On 16 August 2009, Nest of Oriental Honey Buzzard (Pernis ptilorhynchus) was observed at Bukbang-myeon, Hongcheon-Gun, Gangwon-Do Province. This species was known to breed in korea, but actual breeding nest was not observed. This is the first record of observed breeding nest of the Oriental Honey Buzzard in korea.

딥러닝을 이용한 한반도 주변 파랑예측

문종윤(Jongyoon Mun),조완희(Wanhee Cho),성보람(Boram Seong),한수만(Sooman Han),최진휴(Jinhyu Choi) 한국해양환경·에너지학회 2021 한국해양환경·에너지학회 학술대회논문집 Vol.2021 No.5

본 연구는 한반도 주변의 기상정보로 파랑을 예측하고 CCTV 영상에서 월파를 감지하는 기술을 개발하였다. 성능의 우수성이 널리 알려진 인공신경망(Artificial Neural Network, ANN)의 한 종류인 합성곱신경망(Convolutional Neural Network, CNN)을 사용하여 파랑예측과 월파감지 모델을 구축하였다. 파랑예측에 사용된 CNN모델은 U-net을 기반으로 구축하였으며 월파감지에 사용된 CNN모델은 객체 검출 모델을 사용하였다. 파랑예측 모델의 입력 자료는 일본 기상청(Japan Meteorological Agency, JMA)의 대기 예측정보인 MSM(Meso Scale Model)을 사용하였다. 합성곱신경망 파랑예측 모델의 학습데이터는 ADSWAN(ADCIRC + SWAN) 파랑모의 결과의 위도 30˚ ∼42.75˚, 경도 122.5˚∼135.25˚영역을 사용하였으며 격자 간격은 0.05˚로 설정하였다. 파랑 예측 모델의 정확도 향상을 위해 기존 U-net 구조의 인코더와 디코더 레이어의 깊이를 7층으로 확장하여 사용하였다. 상관성 분석 결과, 파고와 주기는 각각 풍속과 파고에 상관성이 높게 나타나 바람장 정보로부터 유의파고를 예측하고 예측된 유의파고로부터 주기를 예측하는 두 단계의 예측 모델을 구성하였다. 예측 결과에서 ADSWAN 파랑모의와의 상관성은 0.93, 관측치와의 상관성은 0.83으로 분석되었고 1시간 예측에 약 0.024초가 소요되었다. 월파감지 모델의 학습데이터는 삼척과 주문진의 CCTV 1년 1개월 분량의 영상(2018.10.01. ∼ 2019.10.31.)에서 월파가 발생한 프레임을 수동으로 추출하여 약 2만장의 데이터를 구축하였다. 월파의 기준은 탐지된 파도 영역이 난간을 넘는 것으로 설정하였으며, 난간을 넘지 않는 파도를 구분하기 위해 배경과 파도를 분리하고 난간 구역과 비교하여 여과하는 알고리즘을 구축하였다. 또한, 해수면과 분리된 파도 영역을 비교하여 실제 처오름높이를 산정하였으며, 월파감지의 정확도 분석 결과 mAP₅₀은 0.60, 속도는 80.5fps로 나타났다. In this study, we developed a technology to predict wave using atmospheric modeling data around the Korean Peninsula and to detect wave overtopping using CCTV images. For the development, we adopted Convolutional Neural Network(CNN), a kind of Artificial Neural Network(ANN) known for its high performance. Wave prediction model is based on U-net, whereas overtopping detection model makes use of object detection models. Input data for the wave prediction model is MSM (Mesoscale Model) atmospheric forecasting data from the Japan Meteorological Agency(JMA). The training data for wave prediction model is ADSWAN(ADCIRC+SWAN) wave simulation results, whose spatial extension is 122.50°E 135.25°E, 30.00°N∼42.75°N with resolution of 0.05°. In order to improve the accuracy of wave prediction model, we extend the depth of the encoder and decoder layers from the U-net structure to the seventh layers. Correlation analysis shows that wave heights are highly correlated with wind speeds while wave periods are with wave heights. Thus, we constructed a two-step model that predicts wave heights from the former and wave periods from the latter. In our prediction results, correlations with ADSWAN wave simulation results and observation were found to be 0.93 and 0.83 respectively. The 1-hour prediction took about 0.024 seconds. The training data for overtopping detection model is around 20,000 frames manually extracted from one year-long CCTV video images (2018.10.01. ∼ 2019.10.31.) from Samcheok and Jumunjin. We defined wave over the fence as a overtopping event, and developed a filtering algorithm to separate the background from the wave by comparing regions. Furthermore, we estimated wave run-up height from the separated wave regions and preformed the accuracy analysis, mAP₅₀ being 0.60 and the processing speed being 80.5fps.