• 제목/요약/키워드: Scandinavia

검색결과 26건 처리시간 0.023초

Stabilization of Meles Delta soils using cement and lime mixtures

  • Onal, Okan;Sariavci, Cagrihan
    • Geomechanics and Engineering
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    • 제19권6호
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    • pp.543-554
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    • 2019
  • İzmir Bay reserves high amount of residual alluvial deposits generated by Meles River at its stream mouth. These carried sediments with high water content and low bearing capacity are unsuitable in terms of engineering purposes. In-situ soil stabilization with deep soil mixing method is considered to improve properties of soil in this location. This method is widely used especially over Scandinavia, Japan and North America. Basically, the method covers mixing appropriate binder into the soil to improve soil profile according to the engineering needs. For this purpose, soil samples were initially provided from the site, classification tests were performed and optimum ratios of lime and cement binders were determined. Following, specimens representing the in-situ soil conditions were prepared and cured to be able to determine their engineering properties. Unconfined compression tests and vane shear tests were applied to evaluate the stabilization performance of binders on samples with different curing periods. Scanning electron microscope was used to observe time-dependent bonding progress of binders in order to validate the results. Utilization of 4% lime and 4% cement mixture for the long-term performance and 8% lime and 8% cement mixture for short term performance were suggested for the stabilization of Meles Delta soils. Development of CSH and CAH in a gel form as well as CSH crystals were clearly observed on SEM images of treated specimens.

스탄디나비아 노인용 코하우징 주민의 이주동기 (Moving Motivation of Senior Cohousing Inhabitants in Scandinavian Countries)

  • 최정신
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2003년도 정기총회 및 추계학술대회
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    • pp.307-312
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    • 2003
  • The purpose of this study was to find out the moving motivation of senior cohousing inhabitants in Scandinavian countries, which experienced change of typical nuclear family structure and higher vocational activity rates of women, earlier than East Asian countries. Cohousing schemes were evolved as an alternative housing to reduce housework for working women, and to reduce loneliness of elderly people by promoting active mutual relationship among inhabitants in the community. This paper described why the elderly moved to senior cohousing in Sweden and Denmark. The project was carried out by social survey. 935 postal questionnaires were sent from April to May 2002 to 28 senior cohousing communities throughout Denmark and Sweden. Of those, 536 replies (57.3%) were collected and analyzed by SPSS program. 19 moving motivations were discussed connected with the variables such as characteristics of residents, community-initiative, and dwelling size. As a result ideology of senior cohousing, wanting to be free from housing management and physical attraction of the building could be interpreted as main reasons to make inhabitants move to senior cohousing community. The important variables affecting moving motivation were found out as living situation and community-initiative. This findings could be used for some information to architects, designers and decision makers who intend to develope senior cohousing projects in the near future in Korea as well as Scandinavian countries.

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Introduction to Distribution and Ecology of Sterile Conks of Inonotus obliquus

  • Lee, Min-Woong;Hur, Hyeon;Chang, Kwang-Choon;Lee, Tae-Soo;Ka, Kang-Hyeon;Jankovsky, L.
    • Mycobiology
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    • 제36권4호
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    • pp.199-202
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    • 2008
  • Inonotus obliquus is a fungus that causes white heart rot on several broad-leaved species. This fungus forms typical charcoal-black, sterile conks (chaga) or cinder conks on infected stems of the birche (Betula spp). The dark brown pulp of the sterile conk is formed by a pure mycelial mass of fungus. Chaga are a folk remedy in Russia, reflecting the circumboreal distribution of I. obliquus in boreal forest ecosystems on Betula spp. and in meridional mountain forests on beech (Fagus spp.) in Russia, Scandinavia, Central Europe, and Eastern Europe. Distribution at lower latitudes in Western and Southern Europe, Northern America, Asia, Japan, and Korea is rare. Infected trees grow for many years without several symptoms of decline. The infection can penetrate through stem injuries with exterior sterile conks developing later. In the Czech Republic, cinder conk is found on birches inhabiting peat bogs and in mountain areas with a colder and more humid climate, although it is widespread in other broad leaved species over the Czech Republic. The most common hosts are B. pendula, B. pubescens, B. carpatica, and F. sylvatica. Less frequent hosts include Acer campestre, Acer pseudoplatanus, Alnus glutinosa, Alnus incana, Fraxinus excelsior, Quercus cerris, Q. petraea, Q. robur, Q. delachampii, and Ulmus sp.

알바 알토와 아느 야콥슨의 의자 디자인 특성 비교연구 - 목재성형기법을 이용한 의자 디자인을 중심으로 - (A Comparative Study on the Characteristics of Chair design of Alvar Aalto & Arne Jacobsen - Focusing on the bentwoods chair design -)

  • 한민정;김진우
    • 한국가구학회지
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    • 제14권1호
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    • pp.91-102
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    • 2003
  • Modern design background of Scandinavia counts the Industrial Revolution and functionalism of Deustscher Werkbund and Bauhaus. However, Scandinavian has created their characteristic 'Scandinavian Modern Furniture' as an adaptation to their environment which are organic form based on their nature, affection of natural material, and handicraft tradition. Finish architect Alvar Aalto and Danish architect Arne Jacobsen rendered great contribution to worldwide reputation of Scandinavian furniture design. Both of them have hold tradition shared historically and culturally in common, brought the weighty traditional thoughts enable to develope their unique design. Especially they had continuous experiment of wood shaping and renovation of manufacturing technique so that they could made their chair design -the laminated bentwoods chair and moulded plywood chair- functionally comfortable. In point of view, the purpose of this study is to analyze the characteristics of the chair design of Alvar Aalto and Arne Jacobsen, focusing un their bentwoods chair. For this purpose, the background of bentwoods chair design was investigated and in the philosophical, formative, and technical aspect, their bentwoods chair design were compared and analyzed.

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스웨덴 근.현대 가구 디자인의 특성과 브루노 맛손(Bruno Mathsson)의 작품세계 (A Study on the Characteristics of Swedish Modern Furniture Design and the works of Bruno Mathsson)

  • 홍민정;최정신
    • 한국가구학회지
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    • 제20권5호
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    • pp.517-532
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    • 2009
  • This study was carried out to review the characteristics of the Swedish modern furniture design and the works of Bruno Mathsson, who is appreciated as one of the most important furniture designers in the history of modern Swedish design. First, the authors examined how the Swedish designers set the value of warm, graceful humanity, practical simplicity, and the traditional craftsmanship in their furniture design with modernist ideology. Second, by examining the range of Bruno Mathsson's works from the 1930s to the 1980s, the authors searched for how these works show the realized models of the ideals of Swedish modern furniture. In this, this article explains that Mathsson's works and the modern Swedish furniture could have been regarded and beloved as being innovative and modern for more than 50 years for their friendliness to human body by the ergonomic structure and to human feeling by the quality of natural materials and finishes. In addition, their consistent effort to adopt traditional craftsmanship into functionalist ideals of modern design shows how these furniture designs could have keep the lasting quality in the life of people in different time frames.

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카올린-시멘트 혼합재료의 공학적 특성 (Mechanical Characteristics of Kaolin-cement Mixture)

  • Lee, Kyu-Hwan;Lee, Song;Yi, Chang-Tok
    • 한국지반공학회논문집
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    • 제18권1호
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    • pp.113-125
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    • 2002
  • 연약 지반개량을 위한 심층혼합처리 공법의 사용은 점차로 증가 추세에 있으며 특히, 일본과 해안가에 인접한 동남아 국가는 물론 스칸디나비아지역에서도 보편화된 개량공법으로 각광을 받고 있다. 시멘트는 지반의 강도를 증가시키고 압축성을 감소시키는 역할을 한다. 따라서 심도가 깊은 퇴적지반이나 해안지역에서 지반의 지지력 증가나 압밀침하를 감소시키기 위해 시멘트를 개량재료로 사용할 수가 있다. 연약지반 처리를 위한 고화제로서 시멘트의 사용이 증가하고 있음에도 불구하고 이에 대한 응력-변형특성이나 혼합처리 흙의 구조적인 특성 등의 역학적인 거동특성을 명확하게 파악하지 못하고 있다. 본 연구에서는 시멘트 고화처리 흙의 역학적 성질을 파악하기 위해 카올린을 이용하여 최대 10%의 시멘트를 첨가하여 7일에서 112일가지 양생기간을 변화시켜 삼축압축시험, 일축압축시험, 등방압밀 및 표준압밀시험등을 수행하였으며 이에 따른 시멘트 고화처리 흙의 역학적인 특성을 파악하고자 하였다. 또한 혼합토의 시료 제조 및 양생방법등 일련의 시험과정에 대한 절차 및 방법에 대하여 기술하였다.

사회복지시설의 인명안전도 평가를 위한 탈출 시뮬레이션 (Evacuation Simulation to Assess Human Safety of Social Welfare Facility)

  • 김현석;김국현;김남숙
    • 한국산학기술학회논문지
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    • 제12권1호
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    • pp.138-143
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    • 2011
  • 최근 들어 약자 보호에 대한 사회적 욕구 증대로 다양한 사회복지시설에 대한 수요가 증가하고 있다. 따라서 이들 사회복지시설 건축 및 운영 중 발생 가능한 화재와 같은 비상상황 하에서의 입소자에 대한 안전성은 매우 중요한 인자로 고려되어야 한다. 이에 본 연구에서는 사회복지시설의 인명 탈출 안전도의 평가방법에 관한 탐색적 연구를 수행한다. 이를 위해 조선공학 분야에서 침몰, 화재 등과 같은 비상상황 하에서의 승객 탈출지수 평가에 주로 적용되고 있는 탈출 시뮬레이션 기법을 임의의 미혼모시설의 인명안전도의 평가에 적용하고 그 결과를 바탕으로 사회복지시설 인명안전도 평가에 탈출 시뮬레이션 기술을 적용할 때 고려해야 할 주요 인자들에 관해 고찰한다.

덴마크 자치관리모델(Self-work Model) 노인용 코하우징의 디자인 특성 (The Design Feature of Self-work Model Senior Cohousing Projects in Denmark)

  • 최정신
    • 대한가정학회지
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    • 제41권4호
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    • pp.1-19
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    • 2003
  • In Scandinavian countries, where the society experienced change of typical nuclear family structure and higher vocational activity rates of married women earlier than East Asian countries, cohousing scheme has been evolved as an alternative housing to reduce housework for working women, and to reduce loneliness of elderly people who stay in their own homes. They can promote active mutual relationship among residents in the community. Korean family structure has been stemmed to more like extended family, but the tendency to live independently from their married children is getting more and more common in new cohort of senior citizens who are active, healthy, economically stable and higher educated. Korea has been industrialized rather rapidly since 1970's and faces to many societal phenomena about quality of life for senior citizens. Introduction of alternative housing solution for these senior citizens is necessary in Korea. In this paper, Danish senior cohousing scheme, particularly, self-work model project is described about its design feature in accordance to site planning, common facility, and dwelling unit. Aiming to mutual support and more frequent social contacts among residents, self-work model cohousing scheme has different design concept from the service mode scheme. Information about design feature of senior cohousing was collected from the published data with drawings and from field survey to 10 exiting projects in Denmark. Of those, 5 projects were described as a case study. It, hopefully, could provide practical information for architectural design when establishment of senior cohousing schemes start in Korea in the near future.

GloSea5 북반구 대기 원격상관패턴의 1~6주 주별 예측성능 검증 (Predictability of Northern Hemisphere Teleconnection Patterns in GloSea5 Hindcast Experiments up to 6 Weeks)

  • 김도경;김영하;유창현
    • 대기
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    • 제29권3호
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    • pp.295-309
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    • 2019
  • Due to frequent occurrence of abnormal weather, the need to improve the accuracy of subseasonal prediction has increased. Here we analyze the performance of weekly predictions out to 6 weeks by GloSea5 climate model. The performance in circulation field from January 1991 to December 2010 is first analyzed at each grid point using the 500-hPa geopotential height. The anomaly correlation coefficient and mean-square skill score, calculated each week against the ECWMF ERA-Interim reanalysis data, illustrate better prediction skills regionally in the tropics and over the ocean and seasonally during winter. Secondly, we evaluate the predictability of 7 major teleconnection patterns in the Northern Hemisphere: North Atlantic Oscillation (NAO), East Atlantic (EA), East Atlantic/Western Russia (EAWR), Scandinavia (SCAND), Polar/Eurasia (PE), West Pacific (WP), Pacific-North American (PNA). Skillful predictability of the patterns turns out to be approximately 1~2 weeks. During summer, the EAWR and SCAND, which exhibit a wave pattern propagating over Eurasia, show a considerably lower skill than the other 5 patterns, while in winter, the WP and PNA, occurring in the Pacific region, maintain the skill up to 2 weeks. To account for the model's bias in reproducing the teleconnection patterns, we measure the similarity between the teleconnection patterns obtained in each lead time. In January, the model's teleconnection pattern remains similar until lead time 3, while a sharp decrease of similarity can be seen from lead time 2 in July.

이상지질혈증 경구용 약제와 심혈관질환 예방효과 (Oral Drugs for Treatment of Dyslipidemia and Cardiovascular Disease Prevention)

  • 이윤아;노준승;송상욱;정수영;권지영;강성구
    • 비만대사연구학술지
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    • 제1권1호
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    • pp.14-25
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    • 2022
  • In 1971, Dr. Akira Endo succeeded in isolating a cholesterol synthesis inhibitor, compactin. Later, compactin was renamed mevastatin, meaning that it stops the synthesis of mevalonate, which is considered the first statin. However, mevastatin is not commercially released, whereas lovastatin, developed by Alfred Albert of Merk in 1979, was the first commercially developed statin. After the 4S study, the first largescale clinical trial with statins conducted in Scandinavia showed a dramatic secondary preventive effect against cardiovascular disease, and the effectiveness of statins in patients with dyslipidemia was repeatedly demonstrated. Subsequently, many oral drugs that affect blood lipid concentration; statins and ezetimibe aimed at reducing low-density lipoprotein (LDL)) cholesterol; fibrates and omega 3 formulations aimed at reducing triglycerides were widely developed and used in Korea. In this article, we review the results of clinical studies on representative cardiovascular diseases for four types of oral drugs for dyslipidemia, which are currently the most commonly used in Korea.