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      • KCI등재

        무가온 시설재배 감귤에서 계절초기 목화진딧물 개체군의 정착경로에 관한 연구

        김태옥,권순화,박정훈,오성오,현승용,김동순,Kim, Tae Ok,Kwon, Soon Hwa,Park, Jeong Hoon,Oh, Sung Oh,Hyun, Seung Young,Kim, Doog-Soon 한국응용곤충학회 2015 한국응용곤충학회지 Vol.54 No.3

        목화진딧물(Aphis gossypii Glover) (Hemiptera: Aphididae)은 감귤에서 그을음병을 유발하여 감귤 과실에 경제적으로 피해를 주는 해충이다. 본 연구는 무가온 하우스 감귤에서 계절초기 목화진딧물이 어떠한 경로를 거쳐서 감귤나무에 정착하는지 구명하기 위하여 수행하였다. 감귤나무에서 진딧물 월동알 조사결과 가을순이 난 여름순에서 많이 발견되었는데 월동알은 대부분 조팝나무진딧물이었으며, 목화진딧물 월동알은 발견되지 않았다. 봄순에 정착하는 목화진딧물 유시형 성충은 크게 4월 하순(조기비산)과 5월 하순(지연비산)에 두 차례 관측되었다. 지연비산은 완전생활형 간모세대에서 유시형이 출현하는 시기와 일치하였다. 조기비산 시기에 황색수반트랩에서도 목화진딧물 유시형 성충이 유살되었는데 확실하지는 않으나 월동잡초에서 잔존하고 있던 불완전세대 개체군으로 추정되었다. 결과적으로 무가온 하우스 감귤에서 목화진딧물의 정착은 불완전생활형의 조기비산과 완전생활형의 지연비산으로 일어난다는 것이 확인되었다. The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) infests citrus orchards, causing sooty mold damage to the fruits. This study was conducted to investigate the colonizing route of A. gossypii in citrus orchards in a non-heating plastic-film house during the early season. The overwintering eggs of the aphids are frequently found on summer shoots of the citrus trees. The eggs were mostly those of Aphis citricola, without any A. gossypii when hatched. The colonization of citrus trees by alate A. gossypii in non-heating plastic-film houses was mainly observed twice, with advanced flight in late April and delayed flight in late May. The delayed flight was synchronized with the timing of the emergence of alate A. gossypii from the fundatrix generation in the holocyclic life cycle. During advanced flight in closed citrus orchards, alate A. gossypii were caught in yellow water traps installed in the fields, and the populations were found to originate from the surviving populations of the anholocyclic life cycle. Consequently, we concluded that citrus tree colonization with A. gossypii occurred during the advanced flight of the anholocyclic and the delayed flight of the holocyclic life cycle.

      • SCOPUSKCI등재

        n - 헥산 / p - TSA 수용액계에서 교반에 의한 유기상의 분산

        김태옥,전종한 ( Tae Ok Kim,Jong Han Chun ) 한국공업화학회 1991 공업화학 Vol.2 No.3

        n-핵산과 40 wt % p-TSA수용액으로 이루어진 비흔화성 액상계에서 교반에 의한 유기상의 분산을 해석하였다. 사용된 교반기는 blade의 형태가 flat와 금망으로 된 4가지 형태의 6-bladed turbine 교반기를 사용하였다. 실험결과, 동일한 교반속도에서 유기상의 분산정도는blade의 형태가 flat, 60 mesh, 40 mesh, 20 mesh의 순서로 감소하였고 계면활성제인 TBA의 농도가 증가할수록, 그리고 유기상의 부피비가 작을수록 유기상은 잘 분산 되었다. 또한 완전분산에 필요한 최소교만속도는 flat, 60 mesh, 40 mesh, 20 mesh의 순서로 증가하였으나 최소소요동력은 거의 동일하였다. 이때 Power number와 Reynolds number와의 관재는 N_p = _aN_(Re)^b이었으며 교반기의 형태에 따른 상수 a와 흔합계의 종류에 따른 상수 b의 값은 각각 2200∼4100, -0.69∼-0.63 범위이었다. The effect of agitation on the dispersion of organic phase was investigated in an immiscible liquid system (n-hexane/40 wt % p-TSA aqueous solution). Four different types of six-bladed turbine impellers were used : a flat blade type and three screen blade types. The experimental results showed that the extent of dispersion of organic phase at the same agitation speed was decreased in the order of flat blade, 60 mesh 40 mesh, and 20 mesh screen blades. Otherwise, it was increased with increasing the concentration of TBA as a surfactant agent and with decreasing volume fraction of organic phase. Also, the minimum agitation speed for a complete dispersion was increased in the order of flat blade, 60 mesh, 40 mesh, and 20 mesh screen blades. However, the minimum power consumption did not vary significantly. In this condition, the relationship between Power number and Reynolds number was expressed as N_p = _aN_(Re)^b, where the values of constant a and constant b were ranged 2200∼4100 and -0.69∼-0.63 respectively.

      • SCOPUSKCI등재

        교반조에서 비혼화성 액상 ( n - 헥산 / 물 ) 계의 액 - 액분산

        김태옥,김동욱,전종한 ( Tae Ok Kim,Dong Uk Kim,Jong Han Chun ) 한국공업화학회 1993 공업화학 Vol.4 No.3

        N-헥산과 증류수로 이루어진 비혼화성 액상계에서 교반에 의한 액-액분산을 해석하였다. 교반기는 blade형태가 flat, 60mesh와 40mesh의 금망, 그리고 60mesh금망의 외부에 금속띠를 두른 4가지의 6-bladed turbine 교반기를 사용하였다. 실험결과, 동일한 교반속도에서 유기상의 분산정도와 교반기의 소요동력은 blade형태가 flat>solid edged>60mesh>40mesh의 순서이었으며 유기상의 부피비가 증가할수록 완전분산에 필요한 최소교반속도가 증가되었다. 또한 분산상의 액적의 평균직경은 교반속도의 증가에 따라 감소하였으며 동일한 교반속도에서는 solid edged<flat<60mesh<40mesh의 순서이었다. 완전분산에서 최소소요동력은 blade형태에 무관하게 거의 동일하였으나 금속띠를 두른 금망의 교반기가 가장 작고 균일한 크기의 액적으로 분산되어 우수한 액-액분산의 성능을 나타내었다. 이때 난류영역에서 Power number는 Reynolds number에 무관하게 일정하였고 액적의 Sauter평균직경(d_(32))은 다음과 같이 유기상의 부피비(Φ)와 Weber number(N_(We))의 함수로 나타낼 수 있었다. d_(32)/D=a(1+bΦ)N_(We)^(-0.6) The effect of agitation on liquld-liquid dispersion was investigated in an immisible liquid phase(n-hexane/water) system. Four different types of six-bladed turbine impellers were used: a flat blade, two screen blades and a solid edged 60 mesh screen blade. We found that the extent of dispersion of organic phase and power consumption of agitator were decreased in the order of flat, solid edged, 60 mesh, and 40 mesh blades at same agitation speed. And the minimum agitation speed for complete dispersion of organic phase was increased with increasing volume fraction of organic phase. Also, mean diameter of liquid droplets of dispersed phase was decreased with increasing agitation speed and it was increased in the order of solid edged, flat, 60 mesh, and 40 mesh screen blades at same agitation speed. At complete dispersion, the minimum power consumption was not vary significantly with impeller blade types, but the solid edged screen blade impeller gave the smallest and uniform sizes of liquid droplets, and it had a good performance for liquid-liquid dispersion. In this condition, Power number was not affected by Reynolds number and it was constant in turbulent flow region, and Sauter mean diameter(d_(32)) of liquid droplets was expressed as a function of volume fraction of organic phase(Φ) and Weber number(N_(We)) as follows: d_(32)/D =a(1+bΦ)N_(We)^(-0.6)

      • KCI등재

        알타이 쿠만딘인 축제 ‘코차-칸’ 연구

        김태옥 ( Kim Tae-ok ) 연세대학교 유럽사회문화연구소 2019 유럽사회문화 Vol.0 No.22

        This paper examines the material and spiritual life of the Kumandin(куман динцы) people through the study of the traditional folk festival "Kocha-kan" (Коча-кан). The Kumandins represent an ethnic minority in Altai Krai and they are on the verge of disappearance. The Kumandian (кумандинцы) are a Turkic people living mainly near the Biya River, in the Altai republic and Kemerovo oblast. Kocha-kan is a kind of religious ceremony to appreciate abundance harvest for the past year to pray for their happiness, health, and the prosperity of their people and animals for the upcoming year. The term 'Kocha-kan' has interpreted in variety: a darkened mask made of birch, a portrait of god Wolgin, obscene and promiscuous man who became a god on the sky by helping shaman, shaman who became f god, a son or grandson of god-Wolgin, living in the lowest layer of the sky or a masked spirit granted humanity - helper of shaman. Although there is no precise interpretation of the origin and meaning of the name Kocha-Kan, the Kumandins understand variously and complexly Kocha-Kan like as mythical being whose character has material and spiritual or a spirit who lives in the middle world and connects man with god.

      • KCI등재

        투바족 새해맞이 축제 샤가아 연구

        김태옥 ( Kim Tae-ok ) 연세대학교 유럽사회문화연구소 2017 유럽사회문화 Vol.0 No.19

        This article aims to study cultural features of Tuvan New Year fest ‘Shagaa’ which is very meaning for understanding Tuvan’s identity and ethnic culture. Shagaa was forbidden for seventy years until collapse of Soviet Union in 1991, when it was officially approved by Tuvan’s government as Tuvan’s national fest. Tuvans celebrate one’s New Year by lunar calendar for three days. Shagaa combinate with shamanistic traditions and Buddhism and has various ritual spectacles such as ‘san salyr’ - ritual bonfire, ‘cholukshuur’ - special greeting, ‘purification by using of juniperus rigida’, fork games, and white colour meals which symbolize pure souls and interception from evil. By using the ritual spectacles Tuvans express appreciation to the nature and it’s features such as Sun, Heavens, Moon, Earth and various souls that exist in the Wild.

      • KCI등재

        MPN 및 H-NS 유전자를 표적으로 하는 PCR assay를 병용한 장염비브리오(Vibrio parahaemolyticus)의 정량

        김태옥 ( Tae Ok Kim ),박권삼 ( Kwon Sam Park ) 한국수산과학회 2014 한국수산과학회지 Vol.47 No.5

        We applied a combination of most probable number-polymerase chain reaction (MPN-PCR) methods using a PCR procedure targeting the H-NS (VP1133) gene to detect Vibrio parahaemolyticus presence and density in seawater as well as within short-necked clam Ruditapes philippinarum tissues collected from Gomso Bay, Korea. In 30 seawater samples, V. parahaemolyticus levels ranged from less than 1.8 to 1.1×10³ MPN/100 mL, and samples from August showed higher than those from other months. Furthermore, the levels of V. parahaemolyticus in six short-necked clam samples ranged from 7.8×10² to 2.1×10³ MPN/100 g, approximately 2.5 times higher than in seawater samples from the corresponding month. Our results provide data on V. parahaemolyticus contamination in seawater and short-necked clam tissues, and help to improve quantitative methods of assessing V. parahaemolytcius levels.

      • KCI등재

        시베리아 투바족의 동식물관 연구

        김태옥 ( Kim¸ Tae-ok ) 연세대학교 유럽사회문화연구소 2020 유럽사회문화 Vol.0 No.25

        This study investigated the significance of several home animals, wild animals and plants that are considered to be most closely related to their daily life or considered as totems among the various animals and plants in Tuva. The Tuvines, who live in the middle of the Siberian coniferous forest and the Mongolian grasslands, are affected by a variety of climatic zones, such as the taiga and the steppes in the north, and the desert and semidesert in the south. Tuvine traditionally considered animals to be shaman’s spirit helpers, mythical ancestors and they believed that the beasts(звери) belonged to the Master spirit (дух-хозяин) of a taiga. They also were close and worshiped home animals such as sheep, horses, dogs, vwild animals such as wolves, bears, rabbits, and birds, such as eagles, swans, crows. Among the plants, broad-leaved trees including white poplar and birch were considered sacred. So Tuvine worshiped the broad-leaved tree, called as the “shaman tree,” “tree of life,” “the world tree,” “the axis of the world,” and “the universe tree.”

      • KCI등재

        동청철도 분쟁을 둘러싼 러.중 관계의 역사적 조명

        김태옥(Kim, Tae Ok) 충북대학교 러시아 알타이지역 연구소 2021 러시아학 Vol.- No.22

        In this paper, the conflict between Russia and China through the construction of Chinese Eastern Railway (東淸鐵道, Китайско-Восточная железная дорога (КВЖД)) and the process of its closure are examined. The Chinese Eastern Railway, led by Sergey Vite, refer to the Far East transit line of the Trans-Siberian train from Chita, Russia, through Manchuria, to Vladivostok. Domestic studies related to Russian railways are mainly focused on the background and function of the Trans-Siberian Railway. It is true that the research on the Chinese Eastern Railway, which was built at the same time and runs through China, briefly discussed the background of its construction and the ownership dispute, but did not pay much attention to the Conflict of Chinese Eastern Railway between Russia (Soviet Union) and China itself (Советско-китайский конфликт на КВЖД or Конфлик на КВЖД, 中东路事件). It can be said that the entire process of planning and completion of the Trans-Siberian Railway, especially the Chinese Eastern Railway, which was built along the border between China and Russia, clearly shows such a conflict. The historical events related to this railway cannot be limited to just a matter between the two countries in the 19th century, when the order in East Asia changed rapidly. Chinese Eastern Railway, a route to the Far East of the Trans-Siberian Railway, built in the late 19th century and early 20th century, is a living witness of the difficult modern and contemporary history of China, and can be said to be a symbolic entity showing the Russian government’s strategy in the Far East of that period. The dispute between Russia and the Qing Dynasty over the interests of Chinese Eastern Railway in 1929 can be said to prove the value and importance of the railway. The construction of the Chinese Eastern Railway and the process of returning to other countries shows a great trend in the modern and contemporary history of Northeast Asia, and studying the process helps us understand the current China-Russia relationship.

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