• Asian-Australasian Journal of Animal Sciences
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• 제5권1호
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• pp.173-181
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• 1992

Duck is an important domestic animal, especially in Asia. Eighty five percent of ducks in the world are kept in Asia, especially in the East and South Asia regions. The ancestor of domesticated ducks was mallard (Anas platylhynchos), which are still migrating between north and southern parts in Eurasia. Ducks have been domesticated in China for at least 3000 years ago. Phylogenetic studies on ducks, employing electrophoresis of blood proteins, indicate a marked difference of genetic constitution between duck breeds in southeast Asia and those in northeast Asia. Duck embryonic ovary is much more active in secretion of sex steroid hormones especially estradiol than the embryonic testes. Estradiol secreted by the embryonic left ovary has an important role in female sexual differentiation in ducks. In the female ducks, plasma LH, estradiol and testosterone levels increase and reach peaks shortly before the first egg, while progesterone level reach a peak shortly after the first egg. In laying ducks oviposition mostly occurs in the last 3 hr of darkness and first hr of light ranging 02:00-06:00 under 14 hr light (05:00-19:00) and 10 hr darkness photoperiodic condition. Measurements of plasma hormone levels reveal that onset of darkness is a major signal for LH release from the pituitary and the subsequent release of progesterone from ovary, and for induction of ovulation in the female duck.

• 대기
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• 제32권1호
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• pp.17-25
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• 2022

As climate change due to global warming continues to be accelerated, various extreme events become more intense, more likely to occur and longer-lasting on a much larger scale. Recent studies show that global warming acts as the primary driver of extreme events and that heat-related extreme events should be attributed to anthropogenic global warming. Among them, both terrestrial and marine heat waves are great concerns for human beings as well as ecosystems. Taking place around the world, one of those events appeared over East Sea in July 2021 with record-breaking high temperature. Meanwhile, climate condition around East Sea was favorable for anomalous warming with less total cloud cover, more incoming solar radiation, and shorter period of Changma rainfall. According to the results of wave activity flux analysis, highly activated meridional mode of teleconnection that links western North Pacific to East Asia caused localized warming over East Sea to become stronger.

• 복식
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• 제35권
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• pp.45-66
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• 1997

This thesis is a study on the kaftan styles iin Asia. The purpose of he study was to examine the origin o the kaftan concentrating on the history and cultural backgrounds of nomads in he Western Central and North Eastern Asia. Secondly for more thorough study and expla-nation on how these kaftans contributed to East-West trade along the silk road. wall paintings and miniature illuminations along Oasis roads persia and Saracen period were compared, Also real kaftans were compared and analyzed the characteristics of Western (Turkey palestine) Central(Kazakistan Uz-bekistan Tadzhistan Qyrgyztan Turkmenistan) and the North Eastern Asian(Mongol) area. Thirdly an attempt has been made to provide the North Eastern Asian(Mongol) area. Thirdly an attempt has been made to provide the style classifications according to their peculiarities of the various kaftans as well as how kaftan gave important influences on custumes of different religious sects. The kaftan is a long coat-like garment with front openings fastened with long sash having an extra long sleeves which were worn by middle and high class nomadics throughout the West Central and North Eastern Asia This type of kaftans were a basic clothing for nomadics since they were constantly moving fromone to another areas on their horse back riding. They also wore tight trousers with boots. Kaftans seem to be originated from nomads of Steppe around B.C. 800 On B. C 400 west asian areas such as Solokha Kul-oba Kulogan had pictures sculptues on vases showing kaftans of half coat type length with front opening tied with band. Also the materials used were the products of animals such as wool or felt with animal designs showing Scythian nomads. In the North Eastern Asia Hsiung-Nu were active in Kazakha North Altai and Mongol The Clothing and fabrics exfavated near Noin-ula Pazyrik showed many samples of kaftan with trousers with other interment be-longings with a corpse around B.C 300 to A. D 100 when trades along the silk roads were proven by many historians Kaftans excavated in this area wore red front opening silk materials which suggesting settling down of nomads. in he central Asia Dol-gull near Altai mountain area were mainly miners who later had many trades with Persia and Bizantine. After Dol-gull Bezeklik temple Samarkant Kizil cow Budda sculture wall paintings of Astana tomb showed typical kaftan of this re-gion. These were both hip covered length as well as long coat with narrow sleeves. Es-pecially they had different color band fron the main kaftan with grogeously and splendously designed silk. In perusia during A. D 1400 to 1600 minia-ture illumination showed kaftan as a high class symbol more than clothing purpose. They had best quality silk with extra long sleeves draping and had a layers of kaftans one on top of anther as a symbol of wealth These Kaftans with different colors and designs were even more beautiful with their effective combinations and contrast of colors. On the other hand the lower class common people and servants wore simple kaftan with the front part of the kaftan were slipped into the belt in order to be more active and con-venient to work, The real kaftans discovered at Topkapi Saray palace of Turkey from A. D 1300 to 1900 were also compared. These kaftans were very numerous in numbers as well as designs The materials and designs used were also vari-ous such as Chinese to Italian silk. The shaped and pattern itself were not much different from the previous nomad's Kaftans. The Palestian kaftans remained were from the beginning of 19th and 20th century. Since this area is hot and dry desert they used black and navy blue colors mostly in order to exclude the sun lights. The patterns used were similar to Nomads and Bedouin with cross stiches and patch work decorations. In the central Asia they had similar life style and natural environmental cnditions with Turkish tribe which resulted in similar kaftan styles as nomads. Mongols conserved basic patterns of kaftan since Cinggis Khan with deep folding in order to keep warm. At last the kaftans studided in this thesis were classified in to four such as half coat long coat jacket and vest style. A pattern used in the Central Asia were zigzag and ani-mal design whereas in the West Asia were floral plant arabesk and circle pattern. As I discussed previously kaftan styles of nomads in the Asia maintained its basic pat-tern throughout the history except slight changes in color gusset sleeve shapes. These slight changes were made according to the need to adapt the need of environmental natu-ral conditions, The reason for aboriginality of kaftan in Asia was its simplicity and con-venience Most interesting fact is that for all these years Mongols are still wearing kaftan in their life ensuring us that they art the preserves of old kaftan. Since this thesis dealt enormous Asian regions I had a limitation of not being able to cover the Far Esatern asian areas such as Korea China and Japan how these kaftans were influenced in their clothing history as well as Eastern and Western culture. This topic along with the studies on materials and designs of patterns of kaftan will be another research project in the future.

• 환경정책연구
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• 제8권3호
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• pp.1-26
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• 2009

본 연구는 실질적인 동북아 생태네트워크 구축을 위한 추진 방안을 마련하기 위하여 이론적 모형을 제시하였고, 위성영상자료를 분석하여 체계적인 동북아 생태네트워크 분석 및 검증을 수행하였으며, 이를 바탕으로 동북아 생태네트워크 추진방안에 대한 정책적 사항을 제안하였다. 동북아 생태네트워크 분석 결과 한반도의 경우 일부 분산된 핵심지역들이 분포하고 있으며, 중국은 동불 3성 일부에만 핵심지역이 존재하였다. 극동 러시아의 경우 대부분이 핵심지역에 속하며 종에 대한 안정적 서식처로 활용될 수 있을 것이다. 몽골의 경우 중국 동북 3성 지역과 연계되어 핵심지역이 존재하는 것으로 파악되었다. 본 연구에서 제안한 방안은 국가 수준을 넘어서는 생태네트워크의 개념을 동북아지역에 도입하기 위한 방안을 모색하기 위한 연구라고 할 수 있다. 또한 국가 수준을 넘어서는 국제 생태네트워크 구축 및 동북아 생태네트워크 구축을 위한 사례 검증을 제시하였으며, 향후 실제 추진과정에 있어 가이드라인으로 기능할 수 있도록 하였다. 앞으로 시계열 위성영상 및 환경관련 공간정보가 보다 많이 확보된다면 동북아 전체의 토지피복 및 식생에 대한 변화를 분석할 수 있으며, 동북아 생태네트워크 분석 및 구축에 보다 용이할 것이다.

• Spatial Information Research
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• 제20권5호
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• pp.1-13
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• 2012

본 연구는 그동안 이산화탄소의 유동 방향 연구에서 지적된 지상관측자료의 시 공간적 제약성을 극복하고자, 최초의 온실가스 측정 전용 위성인 GOSAT을 활용하여 동북아시아 지역의 계절별 이산화탄소의 유동 방향을 평가하고자 하였다. 이를 위해 크리깅 분석을 적용하여 결측값을 보완하고, 이방성 베리오그램을 통해 전체적인 이산화탄소의 유동 방향을 결정하였다. 그 결과 동북아시아의 이산화탄소 공간적 분포 양상은 위도대에 일치하는 변화추세를 확인할 수 있었으며, 계절별 유동성은 봄, 가을, 겨울의 경우 남동쪽 및 동쪽으로 유동되는 이산화탄소가 주를 이루어 나타났으며, 여름에 경우 북쪽 및 북동쪽으로 이동하는 흐름이 나타났다. 이러한 결과는 동북아시아 지역에서 나타나는 계절풍과 유사한 흐름으로 주로 서에서 동으로 이동되는 경우가 주를 이루고 있음을 알 수 있으며, 이는 중국에서 배출된 이산화탄소가 한반도와 일본까지 영향을 미치고 있음을 확인할 수 있다. 그러나 이산화탄소의 유동은 인위적 배출원과 식생의 호흡, 해양의 배출과 흡수 등의 다양한 요인과 결부되어 달라지기 때문에 이산화탄소 유동에 개입되는 다양한 변수와 상관성을 평가하는 후속연구가 필요할 것으로 사료된다.

• 한국전통조경학회지
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• 제40권4호
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• pp.1-14
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• 2022

동북아시아 고대 궁원은 왕도와 왕궁에서의 위치 관계에 따라 왕궁 내부의 북쪽, 왕궁 외부의 북쪽, 왕궁 내부나 외부의 남쪽에 위치하는 세 가지 유형으로 구분된다. 첫 번째는 전조후침(前朝後寢)의 중국 고대 궁실제도를 따른 전형적인 궁원이다. 두 번째는 왕궁과 독립적으로 위치하거나, 금원(禁苑)으로 확장되는 궁원이다. 세 번째는 왕궁의 남쪽에 위치하면서 유락(遊樂)이나 향연(饗宴)으로 특화한 궁원이다. 동북아시아 고대 궁원의 유형은 정궁(正宮)과 별궁(別宮) 혹은 이궁(離宮), 금원(禁苑)과의 관계에 따라 구분되고 각각 독특한 특징을 지니고 있다. 첫 번째는 익산 왕궁리 유적의 궁원을 비롯하여 한 장안성, 북위 낙양성과 남조 건강성, 당 대명궁 등에 이르기까지 정궁의 궁원으로 자리잡아왔다. 여기에서는 왕궁 안으로는 궁원이 내원(內苑)으로, 왕궁 밖으로 금원이 외원(外苑)으로 분리되어 있다. 반면에 두 번째는 궁원(宮苑)과 금원(禁苑)이 일체화되어 있다. 세 번째는 왕궁의 일부분을 구성하거나 왕도에서 정궁과 독립된 공간으로 별궁이나 이궁의 궁원으로 특화되어 왔다. 중국은 동북아시아 고대 궁원의 전형(典型)을 만들었으며, 이를 기초로 하여 한국의 백제와 신라, 일본은 서로 영향을 주고받으면서 나름대로 독창성을 발휘하여 독특한 궁원을 발전시켜 나갔다. 백제왕도 익산의 궁원은 위진남북조시대의 궁원을, 사비도성의 궁원은 진·한대와 수·당대의 궁원을, 신라왕경의 궁원은 사비도성과 당의 궁원을, 일본 아스카~나라시대의 궁원은 백제와 신라의 궁원을 영향을 각각 받았다. 그렇지만 이들 궁원은 각각 나름대로 자신만의 독특한 궁원의 특징도 지니고 있다. 이런 점으로 보아, 동북아시아 고대 궁원은 지역에 따라 계통이 달랐음을 알 수 있다. 평양 안학궁은 궁원으로 보아서는 삼국시대부터 조영될 가능성이 높다. 다만 안학궁 하부의 유구 중복 관계나 유물로 보아 그 초축 시기는 5~6세기로 올려보기 어렵고 대체로 7세기 중엽으로 추정된다. 평양 안학궁의 궁원은 평양 장안성의 정궁에 대응하는 별궁 혹은 이궁의 궁원으로서 한국 통일신라시대 동궁과 월지나 일본 나라시대 평성궁 동원정원(東院庭園)에 영향을 끼친 것으로 판단된다. 이런 점으로 보아, 평성궁 동원정원(東院庭園)은 고구려, 백제, 신라의 궁원과 관련된 것으로 보인다. 본 연구는 동북아시아의 고대 왕도라는 큰 틀에서 궁원의 위치 관계로 그 특징과 변천을 중점적으로 다룬 연구로 적지 않은 한계를 지니고 있다. 이런 한계들을 조금씩 해결하여 나간다면, 동북아시아 고대 궁원에 대한 이해의 폭이 훨씬 넓어지리라 기대해 본다.

• Strategy21
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• 통권40호
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• pp.82-114
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• 2016

The purpose of this article is to analyze the progress of North Korea's SLBM threat, and to assess the technological capacity and threat level of its SLBMs. Currently, North Korea has approximately 1000 ballistic missiles, such as the SCUD, Musudan, and Nodong, in stock. This article pays close attention to the background and strategical implication behind North Korea's obsession with developing SLBMs despite possessing sufficient means to launch provocations with its current arsenal of ground based ballistic missiles and conventional weapons. Based on the abovementioned analysis, this article will recommend possible response directions for the ROK Armed Forces to North Korea's SLBM threat. It is highly difficult to detect SLBMs due to its stealthy nature, as it is launched underwater after covert infiltration. North Korea's SLBM is considered a game changer in that even one SLBM can significantly change the strategic balance of North East Asia. North Korea's SLBM test launch in August has made a 500km flight, landing 80km inside the JADIZ (Japan Air Defense Identification Zone), and as such, it is assessed that North Korea already possesses underwater ejection and cold launch capabilities. The most realistic response to North Korea's imminent SLBM threat is bolstering anti-submarine capabilities. ROK Armed Forces need to upgrade its underwater kill-chain by modernizing and introducing new airborne anti-submarine assets and nuclear-powered submarines, among many options. Moreover, we should integrate SM-3 missiles with the Aegis Combat system that possess strong detection capabilities and flexibility, thereby establishing a sea-based Ballistic Missle Defense (BMD) system centered around the Aegis Combat System, as sea-based ballistic missile threats are best countered out in the seas. Finally, the capabilities gap that could arise as a result of budgetary concerns and timing of fielding new assets should be filled by establishing firm ROK-US-Japan combined defense posture.

• 수산경영론집
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• 제39권2호
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• pp.81-108
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• 2008

Since the declaration made by UN Convention on the Law of the Sea on EEZs, The open seas of Northeast Asia, considerd as a convention area, needed new agreements in conformity with the changes brought by the introduction of the Exclusive Economic Zone(EEZ) system. The Contracting Parties of these agreements set up their own EEZs, which extend certain ranges from their baselines, Fishing in the other party's EEZ is done based on mutual agreements, which take into account traditional fishing activity in the zones. Seperate fishries management systems, in accordance with the relevant legal status of the waters, are applied to individual overlapping areas: Middle Zone in the Bast Sea and the waters south of jeju Island, Interim Measure Zone in the Yellow Sea and East China Sea, and the Transitional Zone in the Yellow Sea. They decided to conclude fisheries agreements as the provisional agreement under Article 74(3) of the UN Convention before the delimitations of the EEZs to avoid the territorial disputes. China and Japan concluded the Fishries Agreement in the November 1997, allowing each coastal State 52 mile EEZ. it was followed by Korea and Japan in September 1998, reaching a final compromise. And also Korea and China came to a satisfactary settlement in November 1998. Fisheries agreements have been established between the three North-east Asian States, the agreement are all bilateral. That implies inefficient resource management on the overlapping waters of the three states, especially on the East China Sea. The Korea-Japan Fisheries Agreement and the China-Japan Fishery Agreement worked as governing rules in the North-east Asian seas before the establishment of EEZs (Exclusive Economic Zones). However the conclusion of the bilateral fishery agreements, Korea China and Japan have developed EEZs, and these three countries have competed for the exploitation of fisheries resources. Therefore, the issue of fisheries resource management was no longer a single countries' problem and emerged as a common issue facing these three countries. In recognition of the above-mentioned problem, it is needed for the construction of cooperative System fishery management in the North-east Asian seas. Therefore, cooperative measures should be establishied. The final goal of the construction of fisheries management cooperative system is to establish sustainable fisheries in the North-east Asian seas. However, there is a big difference in fisheries management tools, fishing gear, exploitation rate of species, etc. This implies that a careful approach should be taken in order to achieve the cooperative fisheries management among Korea, China and Japan. conclusionly, the Governments of Korea, China and Japan should complement three bilateral agreemens, and which they prepares to 'Fisheries Resource Restore Program' Between Korea, China and Japan in the adjacent waters south of Jeju Island.

• 대기
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• 제26권1호
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• pp.85-95
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• 2016

In this study, we investigated the variabilities of wind speed of 850 hPa and precipitable water over the East Asia region using the NCEP Final Analysis data from December 2001 to November 2011. A large variance of wind speed was observed in northern and eastern China during the winter period. During summer, the regions of the East China Sea, the South Sea of Japan and the East Sea show large variances in the wind speed caused by an extended North Pacific High and typhoon activities. The large variances in the wind speed in the regions are shown to be correlated with the inter-annual variability of precipitable water over the inland region of windward side of the Korean Peninsula. Based on the investigation, sensitivity tests to the domain size were performed using the WRF model version 3.6 for heavy precipitation events over the Korean Peninsula for 26 and 27 July 2011. Numerical experiments of different domain sizes were set up with 5 km horizontal and 50 levels vertical resolutions for the control and the first experimental run, and 9 km horizontal for the second experimental run. We found that the major rainfalls correspond to shortwave troughs with baroclinic structure over Northeast China and extended North Pacific High. The correlation analysis between the observation and experiments for 1-h precipitation indicated that the second experiment with the largest domain had the best performance with the correlation coefficient of 0.79 due to the synoptic-scale systems such as short-wave troughs and North Pacific High.

• 대기
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• 제23권2호
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• pp.131-141
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• 2013

Many studies have related the recent variations of wildfire regime such as the increasing number of occurrances, their patterns and timing changes, and the severity of their extreme cases with global warming. However, there are only a few numbers of wildfire studies to assess how the future wildfire regime will change in the interactions between land and atmosphere with climate change especially over East Asia. This study was performed to estimate the future changing aspect of wildfire danger with global warming, using Haines Index (HI). Calculated from atmospheric instability and dryness, HI is the potential of an existing fire to become a dangerous wildfire. Using the Weather Research and Forecasting (WRF) model, two separated 5-year simulations of current (1995~1999) and far future (2095~2099) were performed and analyzed. Community Climate System Model 3 (CCSM3) model outputs were utilized for the model inputs for the past and future over East Asia; future prediction was driven under the IPCC A1B scenario. The results indicate changes of the wildfire danger regime, showing overall decreasing the wildfire danger in the future but intensified regional deviations between north and south. The overall changes of the wildfire regime seems to stem from atmospheric dryness which is sensitive to soil moisture variation. In some locations, the future wildfire danger overall decreases in summer but increases in winter or fall when the actual fire occurrence are generally peaked especially in South China.