• Proceedings of the Korean Society of Grassland Science Conference
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• 2004.07a
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• pp.15-23
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• 2004

- 시원 알기 위해서는 고대 국가의 중심부 아닌 기원지에 주목해야 알타이 사얀산에서 비롯해 순록의 먹이인 이끼 따라 한반도로 이동 - 한민족은 바이칼에서 온 순록유목민의 후손" 바이칼은 거대한 화산지대이며 약 1만3,000년 전 빙하기 후기 이후 고도가 낮고 온천수가 솟아나는 등 사람이 살기에 적합해 유라시아 북방 몽골리안의 창세기가 쓰인 장엄한 역사무대다.(중략)

• Korean Journal of Logic
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• v.19 no.1
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• pp.49-82
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• 2016

In this paper, I argue that it is Kripke's Tractarian notion of rule-following that prevents him from giving a non-skeptical (straight) solution to Wittgenstein's paradox. I characterize the Tractarian notion of rule-following as the 'determinate/infinistic' notion of rule-following. The later Wittgenstein, however, advocates an opposite notion of rule-following: the 'indeterminate/finistic' notion. Considering the later Wittgenstein's context-sensitive, pragmatics-oriented approach to meaning and rule-following, the later Wittgenstein could not have endorsed the determinate/infinistic notion of rule-following. To the contrary, a motive behind Wittgenstein's skeptical paradox was to blame the Tractarian notion of rule-following as the major culprit giving rise to the paradox. At the end, I argue that Kripke's adherence to the Tractarian-correspondence theory of truth also contributes to his failure to offer a non-skeptical solution to the paradox. If Kripke had noticed that the later Wittgenstein was a deflationist about truth, he could have avoided his skeptical conclusion.

• Journal of Convergence for Information Technology
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• v.12 no.4
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• pp.187-198
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• 2022

The purpose of this study was to identify the differences of the meaning of parents in age, and relationship between meaning of parents, meaning in life and depression. The online survey data of 400 including 100 late-adolescents, 100 young adults, 100 mid adults, and 100 older adults was used. The main results were as follows. First, meaning of parents was positively correlated with meaning in life and negatively correlated with depression. Also meaning in life was negatively correlated with depression. Second, there were no age difference in meaning of parents in anova analysis. Third, through structural equation modeling showed that meaning of parents had significant effect on depression mediated by meaning in life. These findings suggested that meaning of parents and meaning in life can be protactive factors on depression. Finally, practical implications and limitataions were suggested for future research.

• Korean Journal of Soil Science and Fertilizer
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• v.22 no.2
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• pp.122-126
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• 1989

The study was performed to examine varietal differences of wilting injury in terms of the root developing system and root activity. The field survey was conducted at the farmer's, and the experimental fields. The experimental investigation was done at different growth stage of rice plant in the sand culture condition. The results were summarized as follows: 1. The T/R ratio of healthy plants was greater than that of the wilted plants in Yushin. 2. Regardless of plant parts, the root activity of the wilted plants decreased in Yushin. The T/R ratio of Yushin tended to increase at the vegitative stage while the Photosynthate distribution to root decreased at the later stage. 3. The root activity and the plant growth rate were higher at vegetative growth stage, while the root activity at reproductive stage decreased. 4. The root activity of Milyang 23, which has relatively less injury of wilting, did not significantly differ between the wilted and the healthy plants. The root was thick and T/R ratio was low.

• Clinical and Experimental Reproductive Medicine
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• v.11 no.2
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• pp.5-15
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• 1984

본 연구는 황체기 단축현상(Short luteal phase, SLP) 을 가진 한국여성의 월경주기내 Prolactin 호르몬의 농도변화를 정상월경주기 (Normal luteal phase, NLP)와 비교하고져 하였다. 한편, Circadian rhythm 내 PRL 농도의 변화를 비교하고 임신기간중 PRL의 농도변화를 방사면역측정법(RIA) 으로 조사하였다. SLP여성의 PRL 농도는 후기의 여포성숙기(Late follicular phase) 및 초기황체형성기(Early IuteaI phase) 정상에 비하여 현저히 낮았다. 정상 월경주기에서는 PRL/Progesterone(mU/1/mg/ml)의 비율이 후기 여포성숙기까지 증가한 후 LH Peak day 이후 감소하는데 반하여 SLP여성의 비율은 조기 여포성숙기부터 계속적인 감소현상을 보였다. 또한 취침전 (04:00시) PRL의 농도는 SLP여성에게는 현저히 낮았다. 임신주기중 PRL의 농도는 4개월째 1,077mU/l 에서부터 9개월째 4,462mU/l까지 점진적인 증가를 하였다. 위의 결과로 보아 황체기단축현상은 PRL의 분비이상이 하나의 주요요인이 될 수 있으며, 특히 PRL/Progesterone의 농도비율이 SLP의 판정에 한 지표가 될 수 있을 것으로 사료된다.

• Journal of Conservation Science
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• v.12 no.1 s.15
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• pp.26-30
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• 2003

We examined the species of charcoals excavated at the late paleotithic site of Suyanggae. Suyanggae is located on the riverbed of Han river near Banyans, central Korea. The charcoals belong to the post-glacial period (radiocarbon dates: $18,630\~16,400\;BP$). Only two species were identified. Most of samples (139 among 142) examined were Pinus spp. (diploxylon). The other 3 samples were Picea spp. The results suggest the upper layer at $235\~245\;cm$ below the ground level was formed during dry and warm post glacial period, predominated by two needle pines and lower layer at 270 cm below the ground layer during the last glacial maximum period, predominated by spruces.

• Development and Reproduction
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• v.5 no.1
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• pp.35-38
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• 2001

This study was peformed to find out the optimum larval stage among trochophore, early Dshaped larva, late D-shaped larva, early umbo and late umbo stages for cryopreservation of surf clam, Spisula sachalinensis larvae. Dimethyl sulfoxide (DMSO)and ethylene glycol were used as cryoprotectant, The larvae were immersed to cryoprotectants for 10 minutes and thereafter, cryopreserved in liquid nitrogen. Survival rates of trochophores frozen-thawed in 2.0 M dimethyl sulfoxide and 2.0 M ethylene glycol were the highest as 97.4% and 85.0%, respectively and post-thaw survival rates were decreased with the larval growth.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.42 no.5
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• pp.579-596
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• 1997

A simulation study was carried out to delineate potential effects of the lake-induced climate change on crop productivity around Lake Imha which was formed after a multi-purpose dam construction in Andong, Korea. Twenty seven cropping zones were identified within the 30 km by 25 km study area. Five automated weather stations were installed within the study area and operated for five years after the lake formation. A geostatistical method was used to calculate the monthly climatological normals of daily maximum and minimum temperature, solar radiation and precipitation for each cropping zone before and after the dam construction. Daily weather data sets for 30 years were generated for each cropping zone from the monthly normals data representing "No lake" and "After lake" climatic scenarios, respectively. They were fed into crop models (ORYZA1 for rice, SOYGRO for soybean, CERES-maize for corn) to simulate the yield potential of each cropping zone. Calculated daily maximum temperature was higher after the dam construction for the period of October through March and lower for the remaining months except June and July. Decrease in daily minimum temperature was predicted for the period of April through August. Monthly total radiation was predicted to decrease after the lake formation in all the months except February, June, and September and the largest drop was found in winter. But there was no consistent pattern in precipitation change. According to the model calculation, the number of cropping zones which showed a decreased yield potential was 2 for soybean and 6 for corn out of 27 zones with a 10 to 17% yield drop. Little change in yield potential was found at most cropping zones in the case of paddy rice, but interannual variation was predicted to increase after the lake formation. the lake formation.

• Korean Journal of Agricultural Science
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• v.4 no.1
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• pp.5-9
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• 1977

1. Chemical properties of soils and inorganic compositions of rice plants were analysed to explain the acute wilting occurred in the late stage of rice variety, Yusin. The results obtained were summarized as follows. 1) The amount of K and $SiO_2$ of soils where severe rice wilting occurred was lower than that of soils where rice wilting didn't occurred. 2) The amount of N and FeO of wilted rice plants was higher than that of normal rice plants while the amount of $K_2O$ and $SiO_2$ and the ratio of $K_2O/N$ of former were lower than that of letter. 2. Severe wilting was occurred only in the rice variety, Yusin, when three varieties${\cdots}$ Yusin, Milyang #15, Milyang #23${\cdots}$were interplanted. The amount of organic and inorganic compositions of three varieties and chemical properties of rhizosphere soils were analysed. 1) The rice variety, Yusin, was the lowest and that of the rice variety, Milyang #15, was the highest in the level of total carbohydrate and hemicellulose. 2) Comparatively higher levels of K were observed in rhizosphere soil where Yusin was planted, while the level of the K in the plant of Yusin was the lowest.

• Journal of Korean Society of Forest Science
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• v.2 no.1
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• pp.4-9
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• 1962

(1) acacia 맹아(萠芽) 억제(抑制)에 대(對)한 2,4-D 살포(撒布)의 효과(効果)에 관여(關與)되는 조건(條件)을 시험(試驗)한바 다음과 같은 결과(結果)를 얻었다. a. 2,4-D 농도(濃度)${\cdots}{\cdots}{\cdots}$ 3,4,5 두식(斗式)의 범위에서는 3 두식(斗式) 최고농도(最高濃度)의 효과(効果)가 가장 크다. b. 살포시기(撒布時期) 5월(月) 상순(上旬)부터 7월(月) 하순(下旬)까지 순별(旬別) 시기(時期)를 분할(分割)하여 시험(試驗)한 즉 후기(後期)로 갈수록 효과(効果)가 컸다. c. 살포시간(撒布時間) 오전(午前) 10시(時), 오후(午後) 1시(時) 오후(午後) 4시(時) 중(中)에서 오후(午後) 1시(時) 가장 효과적(効果的)이었고 오전(午前) 10시(時) 가장 효과(効果)가 적었다. d. 살포(撒布) 계속년(年) 및 살포(撒布) 회수(回數) 계속 살포(撒布)할수록 효과(効果)는 누진적(累進的)이었다. (2) 다음과 같은 2,4-D 처리(處理)로 acacia 맹아(萠芽)는 억제(抑制) 됨을 알았다. a. 3두식(斗式) 농도(濃度)로 7월(月) 상순(上旬)~7월(月) 하순(下旬) 1년(年) 1차(次)씩 (1차(次)는 3일(日) 3회(回)) 계속 살포 3년간(年間)계속 살포(撒布). b. 3두식(斗式)로 오후(午後) 1시(時)에 5월(月) 상순(上旬)부터 1순(旬) 3회(回)씩 7월(月)까지 계속 살포(撒布).