• 제목/요약/키워드: Altai

검색결과 27건 처리시간 0.026초

한반도 봄철 황사 발생시 동아시아 온대저기압의 기후학적 특징 (Climatic Features of Extratropical Cyclones During the Spring-time Yellow Dust Events in Korea)

  • 이재연;김준수;손석우
    • 대기
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    • 제26권4호
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    • pp.565-576
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    • 2016
  • The yellow dust events in Korea are often associated with extratropical cyclones (ETCs) that travel across the source regions of yellow dusts. Although such synoptic patterns are well documented, climatic features of ETCs themselves during the yellow dust events are not well understood. The present study reports climatic features of spring-time ETCs, which accompany the yellow dust events in Korea, by tracking individual ETCs with an automated tracking algorithm. By analyzing Lagrangian tracks of ETCs from 1979 to 2014, it is found that, during yellow dust events, ETCs are located around Vladivostok, Russia. They are typically originated from the leeside of Altai-Sayan mountains about three days before the onset of the yellow dust events, and travel either eastward or southeastward in time. While their tracks are not unusual, they grow faster over the source regions of the yellow dusts, possibly lifting desert dusts above the planetary boundary layer, and further develop slowly as they travel eastward.

몽골 전통 발성 흐미의 발성 방법 분석에 대한 사례연구 (Analysis of Singing Technique of Mongolian Traditional Singing Called Khoomei)

  • 남도현;백재연;황연신;최홍식
    • 음성과학
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    • 제15권3호
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    • pp.145-156
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    • 2008
  • The goal of this study was to investigate acoustic and physiologic characteristics of two phonation types of 'Khoomei' which is a traditional singing style of people who live around the Altai mountains or Mongolia region. It can be produced two pitches simultaneously - high melody pitch can be perceived along with a low drone pitch. Sygyt and kargyraa styles are the most popular and identifiable styles and they can be recognized as the different sounds depending on the method of voice production. Two trained Mongolians participated and have used at least 5 - 6 years. The characteristics of this voice production were measured by using flexible fiberscope, Stroboscopy, Lx Speech studio, Spead, and Doctor Speech. In Sygyt style, very high vocal fold closure (71.50%) with both true and false vocal folds contact and strong breathing support was observed. They also showed that tongue height and harmonics were increased (around 10dB) with resonance cavity movement. In contrast, it was found that Kargyraa sound had very low pitch with relaxed stomach, less laryngeal tension and lower vocal fold contact (69.50%) than hard Sygyt style sound without raising the tongue during phonation. 'Khoomei' phonation can be made by strong contact of both true and false vocal folds and by increasing the harmonics as well.

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고고학으로 본 흉노(匈奴)의 발생과 분포 (The Contemporary Researches of the Xiongnu Archaeology)

  • 강인욱
    • 헤리티지:역사와 과학
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    • 제36권
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    • pp.105-156
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    • 2003
  • Archaeological research on the Xiongnu began in the late 19th century by a Russian archaeologist Talko-Grinchevich. The Xiongnu culture has been reported in the northern steppe of China and eastern part of Eurasian steppe. Mainly, Xiongnu sites, dated from the late 2nd century B.C. to the 1st century A.D., are reported on the east side of Baikal Lake(Zabaikal), east Mongolia, and the Inner Mongolia of China. Based on the historical records and the archaeological remains, the North Xiongnu culture is defined to be the remains of Zabaikal, and the South Xiongnu culture the archaeological remains of Nothern China. The expelled North Xiongnu, while fleeing to the western part of Eurasia, left traces of their own archaeological remains in the Southern Kazakhstan, Xinjiang of China, Altai, and finally appeared in the Europe as Huns. The most characteristic archaeological materials of the Xiongnu are bronze plaques and ceramics made by handicraft, and highly developed iron weapons. After the power of the Xiongnu was dissolved in 1st c. A.D., previously subordinated peoples such as Xianbi, Wuhuan, Wusun rised in the Eurasia steppes and opened medieval age in Eurasia. The "northern type" materials found in Korea are dated to the period of Xiongnu or slightly later, we need to pay more attention to the contemporary Xiongnu. research.

Evolution of post-peak localized strain field of steel under quasi-static uniaxial tension: Analytical study

  • Altai, Saif L.;Orton, Sarah L.;Chen, Zhen
    • Structural Engineering and Mechanics
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    • 제83권4호
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    • pp.435-449
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    • 2022
  • Constitutive modeling that could reasonably predict and effectively evaluate the post-peak structural behavior while eliminating the mesh-dependency in numerical simulation remains to be developed for general engineering applications. Based on the previous work, a simple one-dimensional modeling procedure is proposed to predict and evaluate the post-peak response, as characterized by the evolution of localized strain field, of a steel member to monotonically uniaxial tension. The proposed model extends the classic one-dimensional softening with localization model as introduced by (Schreyer and Chen 1986) to account for the localization length, and bifurcation and rupture points. The new findings of this research are as follows. Two types of strain-softening functions (bilinear and nonlinear) are proposed for comparison. The new failure criterion corresponding to the constitutive modeling is formulated based on the engineering strain inside the localization zone at rupture. Furthermore, a new mathematical expression is developed, based on the strain rate inside and outside the localization zone, to describe the displacement field at which bifurcation occurs. The model solutions are compared with the experimental data on four low-carbon cylindrical steel bars of different lengths. For engineering applications, the model solutions are also compared to the experimental data of a cylindrical steel bar system (three steel bars arranged in series). It is shown that the bilinear and nonlinear softening models can predict the energy dissipation in the post-peak regime with an average difference of only 4%.

Selaginella austrotibetica (Selaginellaceae), a new spikemoss from Xizang, China

  • Meng-Hua Zhang;Jie Yang;Aleksandr Petrovich Shalimov;Jong-Soo Kang;Xian-Chun Zhang
    • Journal of Species Research
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    • 제13권1호
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    • pp.1-9
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    • 2024
  • Selaginella austrotibetica, a new spikemoss species from China, is described. The species is epipetric and was found on a moss-covered rocky cliff by a riverbank. Morphologically, it is unlike any anisosporophyllous species in the genus Selaginella. However, it resembles species of the S. sanguinolenta group, especially similar to S. sajanensis in gross morphology, except for the characters of strobilus. The molecular phylogenetic analysis clearly showed that S. austrotibetica was nested within the anisosporophyllous species clade, forming a sister relationship with the clade of S. vaginata and S. xipholepis, and distinct from the S. sanguinolenta group, including S. sajanensis. Although S. austrotibetica is sister to the clade of S. vaginata and S. xipholepis, the species can be clearly distinguished by its sparse leaves on branches, dorsal leaves that are broad-ovate, base obtuse to rounded, margin denticulate or very shortly sparsely ciliolate, and leaves that are slightly thick and shiny. Therefore, we described Selaginella austrotibetica as a new species and discuss its phylogenetic relationships within the genus Selaginella.

몽골의 심부 지열에너지 자원과 지열발전에 관한 연구 (A Study on Deep Geothermal Energy and Potential of Geothermal Power Generation in Mongolia)

  • 한정상;윤운상;김영식;한찬;박유철;목종구
    • 한국지열·수열에너지학회논문집
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    • 제8권3호
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    • pp.1-11
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    • 2012
  • Mongolia has three(3) geothermal zones and eight(8) hydrogeothermal systems/regions that are, fold-fault platform/uplift zone, concave-largest subsidence zone, and mixed intermediate-transitional zone. Average temperature, heat flow, and geothermal gradient of hot springs in Arhangai located to fold-fault platform/uplift zone are $55.8^{\circ}C$, 60~110 mW/m2 and $35{\sim}50^{\circ}C/km$ respectively and those of Khentii situated in same zone are $80.5^{\circ}C$, 40~50 mW/m2, and $35{\sim}50^{\circ}C/km$ separately. Temperature of hydrothermal water at depth of 3,000 m is expected to be about $173{\sim}213^{\circ}C$ based on average geothermal gradient of $35{\sim}50^{\circ}C/km$. Among eight systems, Arhangai and Khentii located in A type hydrothermal system, Khovsgol in B type, Mongol Altai plateau in C type, and Over Arhangai in D type are the most feasible areas to develop geothermal power generation by Enhanced Geothermal System (EGS). Potential electric power generation by EGS is estimated about 2,760 kW at Tsenher, 1,752 kW at Tsagaan Sum, 2,928 kW at Khujir, 2,190 kW at Baga Shargaljuut, and 7,125 kW at Shargaljuut.

시베리아 샤머니즘 정신문화의 관점에서 본 샤먼복식 연구 (A study on shaman costume from the perspective of Siberian shamanism spiritual culture)

  • 유수;권미정
    • 복식문화연구
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    • 제29권1호
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    • pp.103-120
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    • 2021
  • This study interprets Siberian shaman costumes from the perspective of Siberian shamanism's spiritual culture by combining theoretical and empirical studies. According to the natural environment and language families, the Siberian people are classified into the Altai, Tungus, Ural, and Paleo-Siberian groups. Se Yin's research classifies the spiritual culture of Siberian shamanism as cosmic, spiritual, and nature view. Eliade's research has divided Siberian shaman costumes into form, headdress, and ornament. According to the present study, shaman costume form and decoration reflect the Siberian three-tiered cosmic view, such that the shaman's head, body and feet correspond to the upperworld, middleworld and underworld. In addition, animism, totemism and ancestral worship appear in the shamanism's spiritual view. For example, the costume's form shows the totem of each tribe, while the costume accessories reflect animal worship, plant worship and ancestral worship. Finally, shamanism's nature view mainly manifests through three processes: personification, deification, and ethics. As an intermediary between man and the spirits, shaman use their clothing to reproduce the image of half man and half spirit. The shaman's costumes are deified and considered to have divine power. For example, the animals represented on the costume help the shaman travel through space. Generally, good animals help a shaman enter the upperworld, while animals that help a shaman enter the underworld are considered evil. Also, the number of hanging accessories represents the shaman's ability.

아시아 Kaftan양식에 관한 연구 (A Study on the Kaftan Style in Asia)

  • 오춘자
    • 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.

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에벤키족 씨족명 분포 현황 및 의미 분석: 바이(Baj), 킴(Kim), 샤마/사마(Shama/Sama)를 중심으로 (The Analysis of the Distribution and Meaning of the Evenki's Clan Name: Centering on Baj, Kim, and Shama/Sama)

  • 엄순천
    • 비교문화연구
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    • 제41권
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    • pp.443-475
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    • 2015
  • 본 논문에서는 알타이어족, 예니세이어족, 고립어족에서 공통적으로 발견되는 에벤키족 씨족명 어근 바이, 킴, 사마를 중심으로 해당 씨족명의 기원과 의미, 분포현황, 이동경로, 해당 씨족명이 존재하는 시베리아 제 민족 사이의 친연 관계를 규명했다. 씨족명 '바이'의 기원에 대해 아직 명확하게 규명된 바는 없지만 그 의미를 둘러싸고 '북쪽', '흰색', '풍요로운' 혹은 '자연의'라는 세 가지 입장이 대립하고 있다. 씨족명 '바이~'는 시베리아 제민족 사이에 넓게 분포되어 있다. 먼저 알타이제어 만주-퉁구스어파에 속하는 에벤키, 에벤, 나나이, 울치, 오로크, 오로치, 만주족 그리고 몽고어파와 투르크어파에 분포되어 있으며 예니세이어족이나 고립어족에서도 발견된다. 하지만 이 어근의 씨족명이 에벤키족 사이에서 가장 많이 발견되는 점으로 미루어 이 씨족명은 프리바이칼리예의 에벤키족에서 기원하여 인근의 부랴트, 몽골, 야쿠트족 사이로 넓게 전파된 뒤 이후 동쪽으로는 아무르강의 닙흐족, 북쪽으로는 유카기르와 케트족 같은 예니세이 고아시아제어권 민족, 서쪽으로는 엔츠족과 셀쿠프족 같은 사모예드제어권 민족에게로 전파된 것으로 보인다. 씨족명 '킴~'은 먼 고대에 기원하며 만주-퉁구스어파에 존재하는 유사한 단어, 에벤키족 씨족명 어근 '킴~'과 음성학적으로 유사한 중국인의 성 '김', 에벤키족의 설화를 바탕으로 그 의미를 유추할 수 있었다. 그 결과 씨족명 '킴~'은 '사람'이라는 의미를 지니고 있지만 금, 쇠, 돌과도 일정정도 관련이 있다는 결론에 도달했다. 또 씨족명 '킴~'은 시베리아 소수민족 사이에 널리 분포되어 있지만 에벤키족 사이에 가장 많이 분포되어 있으며 중국 인근과 페르시아에도 분포되어 있었다. 씨족명 '킴~'의 기원은 명확하게 규명할 수 없지만 먼 고대 바이칼 인근의 에벤키족에 편입된 후 만주-퉁구스의 제민족 사이에 널리 전파되었고 더 나아가 투르크제민족 사이로 전파되었음을 알 수 있었다. 씨족명 '샤마/사마~'는 알타이어족의 만주-퉁구스제어권, 투르크제어권, 우랄어족의 사모예드어제어권 민족 등 시베리아의 전역에 널리 분포되어 있으며 음성적 형태도 무척 다양한데 에벤키족 사이에 가장 널리 분포되어 있다. 이 씨족명이 알타이어족과 우랄어족의 제민족 사이에서 발견된다는 점은 이 두 어족의 민족들이 아주 먼 과거에 관련이 있었다는 증거이다. 이 씨족명은 오로크족을 제외한 만주-퉁구스제어권의 모든 민족 사이에서 발견되는데 이에 대한 규명이 필요해 보인다.

Some Peculiarities of Structure and Growth of Larch Stands in Western Mongolia

  • Tsogtbaatar, J.;Battulga, P.
    • 한국제4기학회지
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    • 제18권2호통권23호
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    • pp.107-107
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    • 2004
  • In this paper we have introduced some results of study on stand growth pattern and stand structure of larch forest which are located in selected forest sites of Khangai and Gobi-Altai mountain ranges of Mongolia. Our investigations showed that growth intensity and stand structure in western Mongolia are very specific from the other forest vegetation zones of Mongolia. Studies on the stand structure and growth trend indicate that tree types of stand structure and different types of growth of Larix sibrica are very common in Western Mongolia. These peculiarities of stand structure and growth of larch stands in Western Monolia could be used for inventory work and an improvement of the forest management in Western Mongolian region. The larch tree is the dominant tree species in Western Mogolia. Forest cover of the region is about 15%, which is two times higher than the country's average. In this region forest area is divided into 4 forest sub-regions: the Central Khangai, Western Khangai, North Eastern Khangai and South Easterun Khangai sub-regions including taiga, pseudo taiga, sub taiga, sub-alpine and forest steppe belts. Silviculture practices and forest research management request to study forest growth trends in local and general conditions, which means to indicate a change of taxonomic characteristics of stand from time to time including diameter, height, basal area, growth stock etc. The forest management practice mostly uses tables of forest growth and yield based on the results of long term research on forest growth. Forest yield tables and other relevant forest standards of Russia are used for the forest inventory and forest management. They are not able to determine forest structure and growth peculiatities of Mongolian forests. Studies on forest resource assessment in Mongolia indicate that after logging operations and forest fires the natural regeneration of desired species such as pine and larch often does not succeed. This situation forces to take a different approach of forest management and silviculture practice depending on the stand structure and growth rate of the forest stands. According to our investigation in last years, forest growth pattern of larch forest depends mostly on stand structure, stand age and growth condition including forest soil, climate and location in different slopes. Due to improve environmental function of forest ecosystem in the region, it is needed to conduct very comprehensive study of high mountain forest ecosystem in selected sub-regions.

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