• Title/Summary/Keyword: climatic factors

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Regulatory Factors in Shaping New Towns of Malaysia (말레이시아 신도시 주거단지 계획에 영향을 미치는 법률적 요소)

  • Lee, Lina;Ju, Seo Ryeung
    • Journal of the Korean housing association
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    • v.25 no.4
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    • pp.1-9
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    • 2014
  • The post-war period has witnessed the emergence of new towns in a number of countries in Southeast Asia. New town development started in Malaysia with Petaling Jaya as a satellite town in 1953 to accommodate the rapid growing population of Kuala Lumpur. New towns have been designed in accordance with the British town planning principles, based on the modern ideal city. Nonetheless, they have constituted a regional character as they have incorporated local factors such as local technologies as well as site and climatic conditions. In the shaping of the new towns in modern cities, regulatory aspects have played important roles. The regulations decide the basic framework for planning of new town, block plan and unit plan. The ultimate goal of this study is to understand the identity of the new town planning of Malaysia. As a first step, we reviewed the local regulations, standards, and design guidelines which are applicable to the new town planning from the national land use to local plans. As a result, we categorized the guidelines into four areas: urban space, site plan, street system, block plan and unit plan. We expect this study to provide the framework of the Malaysia's new town planning from the perspective of the local regulations.

A Satellite View of Urban Heat Island: Causative Factors and Scenario Analysis

  • Wong, Man Sing;Nichol, Janet;Lee, Kwon-Ho
    • Korean Journal of Remote Sensing
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    • v.26 no.6
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    • pp.617-627
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    • 2010
  • Although many researches for heat island study have been developed, there is little attempt to link the findings to actual and hypothetical scenarios of urban developments which would help to mitigate the Urban Heat Island (UHI) in cities. The aim of this paper is to analyze the UHI at urban area with different geometries, land use, and environmental factors, and emphasis on the influence of different geometric and environmental parameters on ambient air temperature. In order to evaluate these effects, the parameters of (i) Air pollution (i.e. Aerosol Optical Thickness (AOT)), (ii) Green space Normalized Difference Vegetation Index (NDVI), (iii) Anthropogenic heat (AH) (iv) Building density (BD), (v) Building height (BH), and (vi) Air temperature (Ta) were mapped. The optimum operational scales between Heat Island Intensity (HII) and above parameters were evaluated by testing the strength of the correlations for every resolution. The best compromised scale for all parameters is 275m resolution. Thus, the measurements of these parameters contributing to heat island formation over the study areas of Hong Kong were established from mathematical relationships between them and in combination at 275m resolution. The mathematical models were then tabulated to show the impact of different percentages of parameters on HII. These tables are useful to predict the probable climatic implications of future planning decisions.

Relationship between Climatic Factors and the Distribution of Higher Fungi in Byeonsanbando National Park, Korea

  • Jang, Seog-Ki;Hur, Tae-Chul
    • Mycobiology
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    • v.42 no.1
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    • pp.27-33
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    • 2014
  • From April 2009 to October 2011, we surveyed the higher fungi in the Byeonsanbando National Park, Korea. In total, we identified 2 kingdoms, 3 divisions, 7 classes, 22 orders, 63 families, 149 genera, and 313 species (including 6 undocumented taxa: 2 families, 2 genera, and 2 species). Seventeen 17 orders, 49 families, 128 genera, and 286 species belonged to Basidiomycota; 7 orders, 9 families, 15 genera, and 21 species were of Ascomycota; and 4 orders, 5 families, 6 genera, and 6 species of primordial fungi. Among the Basidiomycota, Agaricomycetes were represented by 47 families, 126 genera, and 282 species. The most common fungi were Boletaceae (33 species), followed by Russulaceae (30), Agaricaceae (27), and Amanitaceae (24). Various species of most of the higher fungi occurred during periods with average temperatures of $23{\sim}24.9^{\circ}C$, maximum temperatures of $28{\sim}31.9^{\circ}C$, minimum temperatures of $22{\sim}22.9^{\circ}C$, > 82% relative humidity, and > 200 mm precipitation.

A Study on the Usage of Hwabangbyeok wall in Traditional Architecture in Joeson Dynasty (조선시대 전통건축에서의 화방벽(火防壁) 사용에 대한 연구)

  • Jo, Sang-Sun
    • Journal of architectural history
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    • v.29 no.3
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    • pp.7-14
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    • 2020
  • It can be meaningful that this study attempted to analyze the use cases and forms based on the literature on the painting walls of the J oseon Dynasty, and attempted basic research to prevent disaster damage using traditional elements. This study summarizes the use of the Hwabangbyeok wall of J oseon Dynasty as follows. First, Hwabangbyeok wall was used from the early J oseon Dynasty and was adopted by palaces and other major state facilities to cope with fire and theft. Second, the Hwabangbyeok Wall was also referred to as the wall below the lower part of the wall, and was constructed with the purpose of preventing disasters from outside. Third, in an analysis of the Daeseongjeon shrine of Hyanggyo, many construction cases were identified mainly in the Gyeonggi area, which is assumed to be based on production and construction conditions along with local climatic factors. Fourth, it can be said that the Hwabangbyeok wall was basically adopted to prevent comprehensive disaster risk reduction in case of external intrusion and fire.

Rapidity of Recent Global Warming : What Factors are Important\ulcorner (위험스런 지구 온난화 경향 무엇이 원인인가?)

  • 김문일
    • Journal of Korean Society for Atmospheric Environment
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    • v.9 no.1
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    • pp.1-10
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    • 1993
  • A brief description on the greenhouse gases, the greenhoue effect, sea level changes, forcing of climate, the history of Earth's changing climate based on the IPCC REPORT and the records of the recent variation of the climate in the Republic of Kore is presented here for help enhancing awareness of the issues. The climate of the Earth has the potential to be changed on all timescales by the fluctuations of the concentrations of radioactively active greenhouse gases, solar radiation, aerosols and albedo. However, the rate of the recent global warming seems to be larger and rapid than any have occurred thorughout recorded history enough to draw the world-wide attention and worry concerned with the theme of environment and development. There are still uncertainties in the predictions relating to the timing, magnitude and the pattern of the climatic change due to the current incomplete understanding of various aspects of the complex processes. Nonetheless, the scientific results avaliable is sufficient to allow for decisive precautionary measures to be taken.

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Production of Azadirachtin from Plant Tissue Culture: State of the Art and Future Prospects

  • Prakash, Gunjan;Bhojwani, Sant S.;Srivastava, Ashok K.
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.7 no.4
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    • pp.185-193
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    • 2002
  • With Increasing awareness towards environment-friendly and non-toxic pesticide azadirachtin obtained from neon tree (Azadirachta indica) is gaining more and more importance. Its broad-spectrum activity, Peculiar mode of action. eco-friendly and non-toxic action towards beneficial organisms has offered many advantages over chemical pesticides. All currently use commercial formulations based on azadirachtin contains azadirachtin extracted from seeds of naturally grown whole plants which is labour intensive process depending upon many uncontrollable geographical and climatic factors. Plant tissue culture can be a potential process for the pro-duction, offering consistent, stable and controlled supply of this bioactive compound, However the research on tissue culture aspects of production are in preliminary stage and requires culture and process optimization for the development of a commercially viable process. This review states the present status and future challenges of plant tissue culture for azadirachtin production.

Population Dynamics of Mustard Aphid, Lipaphis erysimi (Kaltenbach) as Influenced by Abiotic Factors and Different Rapeseed Mustard Genotypes

  • Roy, Santosh-Kumar;Kanchan Baral
    • International Journal of Industrial Entomology and Biomaterials
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    • v.4 no.1
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    • pp.69-76
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    • 2002
  • Mustard aphid, Lipaphis erysimi(Kalt.) plays a key role in determining the productivity of rapeseed-mustard. This pest alone attributes 30-70% losses in yield potential in different agro climatic zones with a mean loss of 54.2% in India. Considering the extent of damage caused by the pest, the present experiment was conducted at Pulses and Oilseeds Research Station during 1992-93 to 1994-95 to study the migratory nature of mustard aphid by trapping them in yellow colour pan tray and their simultaneous growth and development on three different genotypes. The temperature during noon hours is the predominant factor to govern the appearance of alate mustard aphid in rapeseed-mustard field. Stepwise regression analysis revealed that temperature and relative humidity played an important role for its development. The variety RW white flower glossy stem harboured minimum number of aphid in comparison to other two varieties B 9 and T6342. The population reached a peak of 61.28 aphids/10 cm central twig during $6^{th}$ standard week irrespective of varieties.

Sustainable Roughage Production in Korea - Review -

  • Hur, S.N.;Lim, K.B.;Kim, D.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.3
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    • pp.445-448
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    • 1999
  • Beef and dairy cattle are the primary ruminant livestock in Korea, but there is a serious shortage of both fresh and dry forages. Small areas of forage crops or pastures, unfavorable soil and climatic conditions, high costs for pasture production, low establishment and management technologies, etc. are the main factors limiting roughage production in Korea. To meet the roughage demand of cattle several suggestions are presented. About 845,000 ha of hilly area could be developed for pastureland. Almost the same area of paddy field, and more than 200,000 ha of reclaimed land could be used for pasture production. If all the potential area is developed for pastureland, the area could be extended to 10 times more than is presently used for pasture crops and pastureland. Productivity would be increased by developing new technologies of establishment and management. Silvo-pastoral systems should be introduced to Korea.

Development of Sliding Roof System for High-rise Construction Factory Using Quality Function Deployment (품질기능전개를 이용한 고층건물 건설공장 구조체의 개폐식 지붕 시스템 개발)

  • Kim, Chang-Won;Kim, Baek-Joong;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.11a
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    • pp.131-132
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    • 2011
  • Non-working days owing to climatic factors have been negatively affected in productivity of construction, such as delays of project completion times, decrease productivity of construction. Especially non-working days of steel erection work is about 58 days, it is influenced deleteriously to estimating uncertain construction duration. To solve this problem, Construction Factory(CF) and sliding roof system installed CF's upper side are developed in korea recently. This study is proposed the design of sliding roof system through assess relation of requirements and technical characteristics using Quality Function Deployment(QFD). The basis data for applying QFD is collected from literature reviews and questionnaires/interviews targeting system developer, experts and researchers.

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House dust mite fauna in western Anatolia, Turkey

  • Ciftci Ihsan Hakki;Cetinkaya Zafer;Atambay Metin;Kiyildi Nilay;Aycan Ozlem M.;Daldal Nilgun
    • Parasites, Hosts and Diseases
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    • v.44 no.3
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    • pp.259-264
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    • 2006
  • House dust mites play an important role in the pathogenesis of allergic diseases. Many factors may influence mite growth. The presence of mites is related to mean temperature and humidity as well as altitude. The aim of this study was to analyze the mite fauna in 5 regions of western Anatolia, Turkey, that have similar climatic properties with low mean temperature and humidity, but differ in altitude. During the period October-November 2004, house dust was collected from 290 homes in 5 different cities. House dust mites were isolated in 67 (23.1 %) of 290 samples. The family Pyroglyphidae (Astigmata) was present in all positive samples. This study suggests that the selected western Anatolian regions that share similar environmental conditions host similar dust mite populations.