• 제목/요약/키워드: the twentieth century

검색결과 243건 처리시간 0.026초

경사가로줄눈을 가진 콘크리트포장구조의 유한요소법에 의한 해석 (A Finite Element Analysis for the Concrete Highway Pavements with Skew Joints)

  • 조병완
    • 대한토목학회논문집
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    • 제8권4호
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    • pp.11-21
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    • 1988
  • 20세기에 들어서 포틀랜드 시멘트 콘크리트를 이용한 강성포장은, 콘크리트재료의 구조적인 휨강성과 큰 탄성계수 그리고 내구성을 고려한 경제성 등으로 세계 여러 나라에서 널리 이용되어져 왔다. 그러나, 완벽한 설계 및 시공에도 불구하고, 일부 콘크리트 포장도로에서는(예: 미국 Interstate-10 and 75, 한국의 88고속도로 및 중부 고속도로) 심각한 종적, 횡적 균열 및 침하현상 등으로 보수, 유지의 큰 어려움을 겪고 있는 바, 이러한 문제점을 구조역학적인 입장에서 유한 요소법을 이용한 콘크리트 포장구조의 해석을 통해, 차량 위치 및 온도변화에 따른 최대 파괴응력과 위치, 그리고 최대 처짐등을 고려 하므로써, 콘크리트 포장도로의 구조적인 문제점을 해결하는 데 있다. 본 논문에서는 요즘 미국에서 널리 이용되고 있는 경가가로줄눈(skewed joint)의 효과를 구조역학적으로 해석을 하였다.

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발전용 가스터빈에서의 Recuperative 사이클 적용성 검토 (Investigation on Recuperative Cycle Gas Turbine Engine for Power Generation)

  • 김수용;손호재;골든베르크
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2005년도 제24회 춘계학술대회논문집
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    • pp.225-230
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    • 2005
  • 리쿠퍼레이터 사이클을 적용하는 경우 단순사이클에 비하여 이론적으로 상당한 효율 증가를 가져올 수 있는 것으로 알려져 있으나 기기 내부의 압력손실, 열응력, 지나친 무게 증가 불리한 요소도 많이 있다. 그러므로 리쿠퍼레이터를 발전용 가스터빈에 적용하고자 하는 경우 리쿠퍼레이터가 가지는 여러 장단점을 고려하여 전체 수명 기간 중 경제적 타당성 측면에서 신중히 검토되어 져야 할 것으로 판단된다. 아직까지 산업 분야에서는 $20\sim300kW$급까지의 마이크로 터빈에서만 리쿠퍼레이터가 적용되고 있으며 그 이상 급의 가스터빈의 경우 지난 $40\sim60년대$ 해군에 잠시 시도된 외에 발전용으로는 거의 적용된 바가 없다. 본 논문에서는 이러한 발전용 리쿠퍼레이터 사이클의 적용성을 압력 손실, 부분부하 제어 등의 측면에서 검토하였다.

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1960-70년대 뉴욕의 한국작가: 이주, 망명, 디아스포라의 미술 (Art of Dislocation, Exile, and Diaspora: Korean Artists in New York in the 1960s and 1970s)

  • 양은희
    • 미술이론과 현장
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    • 제16호
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    • pp.107-137
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    • 2013
  • This paper examines a number of Korean artists-Whanki Kim, Po Kim, Byungki Kim, Lim Choong-Sup, Min Byung-Ok and etc-working in New York in the 1960s and 1970s, focusing on their motivations to head for the U.S. and their life and activity in the newly-emerged city of international art. The thesis was conceived based upon the fact that New York has been one of the major venues for Korean artists in which to live, study, travel and stay after the Korean War. Moreover, the United States, since 1945, has had a tremendous influence upon Korea politically, socially, economically, and, above all, culturally. This study is divided into three major sections. The first one attends to the reasons that these artists moved out of Korea while including in this discussion, the long-standing yearning of the Korean intelligentsia to experience more modernized cultures, and American postwar cultural policies that stimulated them to envision life beyond their national parameters, in a country heavily entrenched in Cold War ideology. The second part examines these artists' pursuit of abstraction in New York where it was already losing its avant-garde status as opposed to the style's cutting edge cache in Korea. While their turn to abstraction was outdated from New York's critical perspective, it was seen to be de rigueur for Koreans that had developed through phases from Art Informel in the 1960s to Dansaekhwa (monochromatic paintings) in the 1970s. The third part focuses on the artists' struggle while caught between a dualistic framework such as Korea/U.S, East/West, center/margin, traditional/modern, and abstraction/figuration. Despite such dichotomic frames, they identified abstract art as the epitome of pure, absolute art, which revealed their beliefs inherited from western modernism during the colonial period before 1910-1945. In fact, their reality as immigrants in America put them in a diasporic space where they oscillated between the fixed, essentialist Korean identity and the floating, transforming identity as international artists in New York or Korean-American artists. Thus their abstract and semi-abstract art reflect the in-between identity from the diasporic space while demonstrating their yearning for a land of political freedom, intellectual fulfillment and the continuity of modern art's legacy imposed upon them over the course of Korea's tumultuous history in the twentieth century and making the artists as precursor of transnational, transcultural art of the global age in the twenty-first century.

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구술을 통한 전통세대의 음식문화특성 연구 (A Study on the Food-culture's Property of the Traditional Generation through the Oral Interview)

  • 김미혜;정혜경
    • 한국식생활문화학회지
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    • 제24권6호
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    • pp.613-630
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    • 2009
  • This thesis, which involves honest life stories of members of the ìtraditionalî Korean generation that lived through the turbulent times of the first half of the twentieth century, assesses the meaning and import of Korean cuisine during an individual Korean's lifetime, as well as the relevant properties of the culinary culture of the traditional generation and how those properties continue to influence the present generation of Koreans. Thus, traditional Korean culinary culture was subdivided into the following four aspects, each of which were exemplified by representative examples. The first of these is slow-food dietary life, which is exemplified by fermented foods. The development of side dishes (panchan) based on fermentation - kimchi, different types of soy and bean paste, salted seafoods, dishes of dried radish or cucumber slices seasoned with soy sauce, and so on - made the quantitative and qualitative supplementation of food possible for traditional Koreans. The second of these aspects, referred to as friendly dietary life, is exemplified by self-sufficiently produced foods. The system of many species and small production suitable with the season made it possible to produce food from sustainable ecological systems and to maintain locally grown food-cultures, each of which was distinguished from others by a local specialty product. The third aspect of the traditional Korean culinary culture involves the same use of medicinal roots and plant materials for foodstuff, and this is exemplified by the use of foods to cure and prevent diseases. The notion, for example, that 'boiled rice is an invigorant' is characteristic of the notion that diet can function in a preventative medical context, and other similar Korean notions illustrate the importance, also, of the curative properties of food. The fourth and final aspect of traditional Korean culinary culture identified herein is creative dietary life, which can be viewed essentially as a Korean adaptation to the turbulence of life during the early $20^{th}$ century in Korea. This trend is exemplified by many Korean foods that were created in response to foreign influences, such as onions, cabbages, curry, etc. which found their place in overall Korean culture through the age of Japanese settlement, as well as the Korean war.

CHANGES IN WATER USE AND MANAGEMENT OVER TIME AND SIGNIFICANCE FOR AUSTRALIA AND SOUTH-EAST ASIA

  • Knight, Michael J.
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 1997년도 추계 국제학술심포지움 논문집
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    • pp.3-31
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    • 1997
  • Water has always played a significant role in the lives of people. In urbanised Rome, with its million people. sophisticated supply systems developed and then fled with the empire. only to be rediscovered later But it was the industrial Revolution commencing in the eighteenth century that ushered in major paradigm shifts In use and altitudes towards water. Rapid and concentrated urbanisation brought problems of expanded demands for drinking supplies, waste management and disease. The strategy of using water from local streams, springs and village wells collapsed under the onslaughts of rising urban demands and pollution due to poor waste disposal practices. Expanding travel (railways. and steamships) aided the spread of disease. In England. public health crises peaks, related to water-borne typhoid and the three major cholera outbreaks occurred in the late eighteenth and early nineteenth century respectively. Technological, engineering and institutional responses were successful in solving the public health problem. it is generally accepted that the putting of water into pipe networks both for a clean drinking supply, as well as using it as a transport medium for removal of human and other wastes, played a significant role in towering death rates due to waterborne diseases such as cholera and typhoid towards the end of the nineteenth century. Today, similar principles apply. A recent World Bank report Indicates that there can be upto 76% reduction in illness when major water and sanitation improvements occur in developing countries. Water management, technology and thinking in Australia were relatively stable in the twentieth century up to the mid to late 1970s. Groundwater sources were investigated and developed for towns and agriculture. Dams were built, and pipe networks extended both for supply and waste water management. The management paradigms in Australia were essentially extensions of European strategies with the minor adaptions due to climate and hydrogeology. During the 1970s and 1980s in Australia, it was realised increasingly that a knowledge of groundwater and hydrogeological processes were critical to pollution prevention, the development of sound waste management and the problems of salinity. Many millions of dollars have been both saved and generated as a consequence. This is especially in relation to domestic waste management and the disposal of aluminium refinery waste in New South Wales. Major institutional changes in public sector water management are occurring in Australia. Upheveals and change have now reached ail states in Australia with various approaches being followed. Market thinking, corporatisation, privatisation, internationalisation, downsizing and environmental pressures are all playing their role in this paradigm shift. One casualty of this turmoil is the progressive erosion of the public sector skillbase and this may become a serious issue should a public health crisis occur such as a water borne disease. Such crises have arisen over recent times. A complete rethink of the urban water cycle is going on right now in Australia both at the State and Federal level. We are on the threshold of significant change in how we use and manage water, both as a supply and a waste transporter in Urban environments especially. Substantial replacement of the pipe system will be needed in 25 to 30 years time and this will cost billions of dollars. The competition for water between imgation needs and environmental requirements in Australia and overseas will continue to be an issue in rural areas. This will be especially heightened by the rising demand for irrigation produced food as the world's population grows. Rapid urbanisation and industrialisation in the emerging S.E Asian countries are currently producing considerable demands for water management skills and Infrastructure development. This trend e expected to grow. There are also severe water shortages in the Middle East to such an extent that wars may be fought over water issues. Environmental public health crises and shortages will help drive the trends.

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$1920{\sim}1930$년대(年代) 독일(獨逸) 지지학(地誌學)의 연구(硏究) 동향(動向) (The Trend of Regional Geography in Germany in the 1920s and 1930s)

  • 김재완
    • 한국지역지리학회지
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    • 제6권1호
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    • pp.69-89
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    • 2000
  • 20세기 전반기는 리터, 홈볼트로부터 시작된 근대 지리학이 꽃 피던 전성기였다. 19세기말 답보 상태였던 지리학이 20세기 들어서면서 지지학(地誌學)을 중심으로 유럽 각국에서 눈부신 발달을 보였다. 특히 독일의 헤트너와 쉬뤼터, 프랑스의 비달 드 라 블라쉬, 영국의 허버트슨 등을 지도자로 하여 각기 독특한 지지학(地誌學) 방법론(方法論)이 발전하였고, 경험적 연구도 많이 쏟아졌다. 그리하여 1920년대와 30년대에는 지지학(地誌學)의 전성기를 이루었다. 본고는 1920년대와 1930년대 독일에서 논의된 지리학자들의 지역 개념과 지지 방법론을 고찰하는데 연구 목적을 두었다. 1920년대와 1930년대 독일(獨逸)의 지지학(地誌學) 동향(動向)은 일본 지리학자들에게 직접적인 영향을 주었다. 그 영향으로 당시 일본의 대표적인 지지자(地誌學者)인 전중계이(田中啓爾) 지형, 기후, 식물대, 인문을 종합적으로 고려하여 일본의 지역구분을 시도하였다. 그는 당시 일본 지리학자들과 일본에서 공부하던 한국의 지리학자들에게 많은 영향을 미쳤다.

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조선시대(朝鮮時代) 도작농업(稻作農業)의 발전(發展)과 인구증가(人口增加) (Rice Cultivation and Demographi Development in Korea : 1429-1918)

  • 이호철
    • Current Research on Agriculture and Life Sciences
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    • 제7권
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    • pp.201-219
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    • 1989
  • Rice culture in Korea has a long history ranging over two thousand years. In the agriculture economy of pre-mordern Korea, however, its importantce was not as great as generally assumed. In fact, rice culture reached full development only after the 1920s when the Japanese colonial government carried out its drive to increase rice production in the Korea peninsula. It was not until the mid-1930s that rice became the staple in Korean diet. This can be attributed to two factors : (1) a mountainous topography that provides little irrigated fields and (2) a climate characterized by droughts in spring and heavy precipitation in summer. The present paper attempts to answer some of these questions. Specifically it will focus on these : Did the development of rice culture actually result in population growth? What are the salient features of agricultural develdpment and population grow in traditional Korea? Does the case of Korea conform the prevailing generalization about the agriculture in East Asia? I have discussed the development of rice culture and population growth in the Chos$\breve{o}$n dynasty, focusing on the relation between the rapid spread of transplanting and the rapid growth of population from the seventeenth to the nineteenth century. Here are my conclusions. (1) The spread of transplanting and other technological innovationsc contributed to the rapid growth of population in this period. However, we should also note that the impact of rice culture on population growth was rather limited, for rice culture was not the mainstay of agricultural economy in pre-modern Korea. Indeed we should consider the influence of dry field cropsn population growth. Nevertheless, it is obvious that the proliferation of rice culture was a factor crucial to population growth and regional concentration. (2) How should we characterize the spread of rice culture in the whole period? Evidently rice culture spread from less then 20% of cultivated fields in the fifteenth century to about 36% of them in the early twentieth century. Although rice as a single crop outweighed other crops, rice culture was more then counter-balanced by dry field crops as a whole, due to Korea's unique climate and geography. Thus what we have here in not a typical case of competition between rice culture and day field culture. Besides, the spread of rice culture in the seventeenth and eighteenth centuries accomplished by technological innovations that overcame severe springtime drought, rather than extensive irrigation. Althougt irrigarion facilities did proliferate to some extent, this was achieved by local landlords and peasants rather than the state. This fact contradicts the classical thesis that the productivity of rice culture increased through the state management of irrigation and that this in turn determined the type of society. (3) We should further study other aspects of the transition from the stable population and production struture in the fifteenth and sixteenth centuries to the rapid population growth and excessive density of population thereafter. We should note that there were continuing efforts to reclaim the land in order to solve the severe shortage of land. Changes also took place in the agricultural production relations. The increase in land producrivity developed tenancy based on rent in kind, and this in turn increased the independence of tenants from their landlords. There were changes in family relations-such as the shift to primogeniture as an effort to prevent progressive division of property among multiplying offspring. The rapid population growth also produced a great mass of propertyless farm laborers. These changes had much to do with the disintegration of traditional social institutions and political structure toward the end of the Chos$\breve{o}$n dynasty.

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김택영(金澤榮)의 1909년 귀국(歸國)과 안중식(安中植) 필(筆) <벽수거사정도(碧樹居士亭圖)> (Kim Taek-yeong's Return to Korea in 1909 and Scholar Byeoksu in a Pavilion by An Jung-sik)

  • 강민경
    • 미술자료
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    • 제99권
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    • pp.30-49
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    • 2021
  • 심전 안중식(1861~1919)이 그리고 창강 김택영(1850~1927)이 제시(題詩)와 기문(記文)을 지었으며 석운 권동수(1842~?)가 글씨를 쓴 <벽수거사정도>는 2018년 국립현대미술관 덕수궁관에서 열린 "대한제국의 미술: 빛의 길을 꿈꾸다"에서 처음 세상에 공개되었다. 이 작품은 안중식의 드문 실경산수이며, 20세기 초 서울 상류주택의 면모를 보여준다는 점에서 가치가 크다. 그러나 또한 이 작품이 당시 지식인의 교유 관계를 단적으로 드러낸다는 사실을 간과할 수 없다. <벽수거사정도>를 그리게 한 벽수 윤덕영(1873~1940)은 순종비 순정효황후 윤씨(1894~1966)의 백부이자 훗날 국권피탈에 일조한 인물이었다. 순종이 윤덕영에게 "벽수거사정"이란 현판을 하사하자, 그 기념으로 윤덕영이 만든 작품이 바로 <벽수거사정도>이다. 한말(韓末) 한문학의 대가로 꼽히는 김택영은 1905년 을사늑약이 체결되기 1달 전 가족을 이끌고 청의 강소성(江蘇省) 남통(南通)으로 망명을 떠났었는데, 1909년 다시 한국에 돌아왔다. 그의 귀국에는 이재완(1855~1922)과 윤덕영 등이 깊이 관여하고 있었다. 김택영은 역사서 편찬을 위한 자료수집의 목적을 품고 귀국하였지만, 그와는 별도로 평소 알던 사람들, 새롭게 알게 된 이들과 끊임없이 만나며 교유하였다. 그 범위는 서울을 넘어 지방에 살던 인물, 나아가 일본인에 이르기까지 매우 넓었다. 이는 당시 시문을 매개로 교유하던 지식인들의 관계망이 있었을 가능성을 보여준다. 그것은 그들의 정치적 성향이나 신분, 국적과는 별개로 작동하고 있었다. <벽수거사정도>는 그러한 19세기 말~20세기 초 지식인 사이에서 일어났던 지적 교류의 한 면모를 보여주는 작품이라는 점에서도 그 가치를 찾을 수 있다.

디즈니 애니메이션에 나타난 모더니즘 회화스타일 : 색, 형태, 공간을 중심으로 (Modernist painting style in Disney animation)

  • 문재철;김유미
    • 만화애니메이션 연구
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    • 통권33호
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    • pp.31-53
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    • 2013
  • 20세기 초 모더니즘 예술의 다양한 실험은 필름과 카메라의 발명과 함께 애니메이션을 탄생시켰다. 초창기에는 영화, 사진, 미술 등 예술가들에 의해 이미지와 시간을 접목한 다양한 분야의 이미지 실험이 이루어졌다. 그러나 이후 애니메이션이 상업적으로 성공을 거두면서 점차 흥미위주의 작품이 주류로 자리 잡아 갔으며, 초기 애니메이션의 실험적 특성은 소위 비주류 애니메이션으로 명맥이 유지되었다. 디즈니 애니메이션 역시 상업적인 작품을 제작하면서 초기작품의 실험적 형태, 움직임의 표현, 그리고 초현실주의적 관점이 반영돼 모더니즘 예술로 긍정적인 평가를 받아왔었지만, 점차 영화적 리얼리즘을 표방하여 3차원적 영상 이미지 표현에 몰두하였다. 그 예로 애니메이터들에겐 드로잉과 라이브액션 푸티지(liveaction footage)를 연구하는 클래스를 열어 사람과 동물의 움직임을 재현하는 테크닉을 발전시켜갔다. 또한 2차원 원급법의 표현적 한계를 극복하고자 기술적으로 멀티플레인 카메라(multiplane camera), 3D컴퓨터그래픽스와의 합성 등 이미지의 입체감을 강화시켜갔다. 더욱이 내용면으로 대중적인 동화 소재의 선택과 월트 디즈니 개인의 실사영화에 대한 관심은 애니메이션 연출에서 헐리우드 영화적 내러티브의 관습과 이미지 재현의 사실성을 강화시켜 초기 작품들이 갖고 있던 고유의 특성이 변질되면서 디즈니 애니메이션은 하위 영상문화 또는 아동적인 것으로 인식되는 원인이 됐다. 그러나 사라진 듯 보인 초기 모더니즘의 특성들은 이미지 표현에 있어 현재에도 디즈니 애니메이션에 계승되고 있다. 여전히 장르의 특성상 내러티브의 범주에서 디자인의 대상성은 중요시되지만 그 표현에 있어서는, 모더니즘 회화가 추구했던 이미지의 단순화와 과장으로 형태와 색이 줄 수 있는 심리적작용은 애니메이션 디자인에 활용되어 과거에 비해 그 특성은 더욱 강화됐다. 먼저 간단한 도형의 형태로 단순화된 모더니즘 회화의 특성은 캐릭터 디자인에 차용되고, 색은 대상의 장식이나 고증적 재현의 일차원적 목표를 넘어 카메라와 인물의 움직임으로 한 하면에서 배치가 바뀌면서 충돌 상쇄하여 관객에게 내적 경험을 유도하게 한다. 추상회화에서 색의 해방이 평면성으로 귀결된 것과 같이 캐릭터의 단순화된 개념적 색상의 사용은 캐릭터를 평면적으로 보이게 할뿐더러 이와 대조되는 공간은 더욱 평면적으로 나타나게 된다. 또한 카메라 움직임에 따라 드러나는 배경의 다중시점은 다양한 각도에서 대상의 본질을 표현하려한 모더니즘 회화를 연상시키기에 충분하다. 이러한 특성들이 초기 모더니즘 회화가 줬던 경험을 환기시킨다는 점에 입각하여 본 연구는 현대 작품들 사례를 중심으로 단순화 또는 과장된 형태, 내적표현의 색, 그리고 공간 사건의 배경의 역할을 유지하면서 움직임이 주는 경험을 20세기 초 모더니즘 회화의 특성과 비교 분석한다.

신국제노동분업의 재평가 (The New International Division of Labor:Re-evaluation)

  • 고태경
    • 지역연구
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    • 제11권1호
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    • pp.79-91
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    • 1995
  • As an exit to solve the economic depression of the development countries in the early twentieth century, the 'old international division of labor' developed. The economic crisis(i.e., under-consumption crisis) was due to the absence of the mode of regulation compatible with the extensive regime of accumulation(i.e., "Fordist" regime). The crisis was solved by the state intervention through the creation on institutions in order to increase the level of consumption. Until the late 1960s when "high Fordism" reached(i.e., a harmonious relation between the monopoly mode of regulation and the intensive accumulation of capital), the developed core countries enjoyed a remarkable economic growth. The external market was not a necessity for the economic growth because there were increases in labor productivity and proportional increases in real wages and thus increases in consumption level. In the 1970s, however, the core faced with economic crisis again. Due to the breakdown of the postwar "Fordist" regime of capital accumulation and the post 1973 world depression, the core needed the Third World as a solution for their internal and international economic crisis. Thus the 'new international division of labor'(NIDL) arose. The "Fordist" method of production(i.e., the divisions of production process) led to the territorial division of labor and to the detailed division of labor. The aim of the NIDL is to exploit reserve armies of labor on a world scale and thus to reduce production costs. According to the NIDL model, the Third World countries have been developing by the core countries' investment on mainly labor-intensive industries and thus have been playing an important role in the global economy. And the NIDL theorists argue that multinational corporations have increasingly invested in the Third World nations and contributed to the economic growth in those regions. Tables presented in the paper show that the global trend since the 1970s does not follow the argument exactly as the NIDL theorists predicted. On the contrary, the core countries focus on developing technology, adopting the automation of production process, and trading within the core countries rather than on investing in the periopheral countries. The continuing investment of multinational corporations into the periphery is not because of cheap labor force but because of the market potentials in the regions. Majority of corporations of the core tries to reduce production costs by investing in technological development more intensively and also by changing regional strategies (i.E., investment from metropolitan areas to medium - or small - size cities, focusing on agglomeration economy, boosting regional diversification, etc.) within their own countries. The main purpose of the paper is to review and to criticize the NIDL theory based on some empirical data.IDL theory based on some empirical data.

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