• 제목/요약/키워드: Natural factors

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실내공간에 있어 자연광에 의한 시지각적 현상에 관한 연구 (A Study on the Visual Phenomenon of Natural Light in Interior Space)

  • 김주연
    • 한국실내디자인학회논문집
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    • 제13호
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    • pp.130-138
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    • 1997
  • This study is to present the visual phenomenon of natural light in the interior space. The continuously changing natural light define the visual phenomenon of the architectural space. First, the objective of this study was finding the importance of the visual phenomena which were generated from correlating natural right with the interior space. And the second was to categorize the factors of the visual phenomenon which can be useful factors for modern interior design practice. As a result of this study, two visual phenomena were classified. First; territorial phenomenon: dividing, partitioning, and sectioning by natural light, Second; phenomena by the inflow methods of natural light; a) by direct inflow; transparency, expansion, and floating, b) by filtering fixtures; the architectural structure, color, and the transluscent material, c) by dramatic spacial present of natural light, d) by the sense of direction of naturel light; continuity, and transformatiov. Found and classified each factor is not presented by itself, rather compounded forms. Because of the limited analysis of modern buildings, these found visual factors can not represent all phenomena. But if we practice these finding factors to design present interior space, it is sure of being very valuable factors to re-introduce the overlooked natural light into interior space.

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재난발생과 자연적요인·사회적환경·풍수적요인간의 상관관계분석 (Analysis of Industry-related Relationships between Disasters, Natural Factors, Social Factors, and Feng Shui Factors)

  • 이정일
    • 대한안전경영과학회지
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    • 제25권4호
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    • pp.1-13
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    • 2023
  • This study aims to investigate the correlation between the causes of natural disasters and feng shui factors targeting disaster management experts, feng shui experts, and the general public who are interested in feng shui. To this end, it is intended to reveal that the factors of the disaster at Mt. The purpose of this study is to analyze the impact of three factors on disasters: feng shui factors, natural factors, and social factors. To this end, a survey was conducted targeting feng shui experts, disaster management experts, master's and doctoral students in feng shui geography, residents of the Umyeonsan disaster area, and people interested in feng shui geography. 260 copies of the questionnaire were prepared and 248 copies were used for the final analysis. First, in order to analyze the impact of feng shui factors on awareness of disaster occurrence, after controlling for demographic variables, hierarchical multiple regression analysis was conducted to analyze the impact of feng shui factors on awareness of disaster occurrence. Second, as a result of analyzing the effect of natural factors on awareness of disaster occurrence, looking at each independent variable in the second-stage regression analysis. Third, as a result of analyzing the effect of social factors on awareness of disaster occurrence, looking at each independent variable in the second-stage regression analysis. Finally, as a result of the T-test and Anova analysis conducted for discriminant analysis, if the p-value was less than .005, the F value for each group was obtained as a result of the ANOVA analysis on the feng-shui factors

국내 인공댐호의 물리적 환경인자에 의한 호수특성 고찰에 관한 연구 (Studies on the Phisical Environmental Factor Analysis for Water Quality Management in Man-made Lake of Korea)

  • 김좌관;홍욱희
    • 한국환경과학회지
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    • 제1권2호
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    • pp.49-57
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    • 1992
  • First, We classified man-made lakes in Korea as 4-type lakes, that is, there were River-run lakes, Dendritic lakes, Reservoir-lakes, River-mouth lakes, We studied on the environmental factors of 3-type lakes except River-mouth lakes, compared these lakes with natural lakes in foreign country. Environmental factors were watershed area, lake storage, mean depth, hydraulic retention time. As a results, 3-type lakes in Korea had remarkable differences one another according to above-mentioned environmental factors. First, We recognized that River-run lakes had higher nutrient loading according to having wider watershed area than natural lakes, and had lower algal growth rate according to shorter hydraulic retention time than natural lakes. Dendritic lake had higher nutrient loading than natural lakes, longer retention time than River-run lake. Reservoir-lakes had environmental factors between Dentritic lakes and River-run lakes. Therefore, If this studies had no quantitative results about various factors, We recognized that man-made lakes in korea had different environmental factors as compared with natural lakes, and had clear classification among 3-type lakes.

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공동구의 응답변위법 해석 시 국내 특성을 반영한 지반 비선형 보정계수 연구 (A Study on the Correction Factors of Soil Non-linearity Considering Korean Regional Conditions for Seismic Deformation Method Applied to Multi-Utility Tunnels)

  • 최정호;윤종석;추연욱;윤준웅
    • 한국지진공학회논문집
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    • 제25권1호
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    • pp.11-20
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    • 2021
  • The seismic deformation method is conventionally used as a seismic design for a multi-utility tunnel in Korea. In the seismic deformation method, the soil ground's natural period is one of the most critical factors for calculating the ground displacement using cosine functions. Correction factors for the natural period and shear wave velocity have been used to consider the non-linearity of dynamic soil properties. However, the correction factors have been issued because the correction factors have not been sufficiently studied to consider Korea's regional conditions. This paper aims to evaluate the natural periods for the seismic deformation method considering Korea's ground conditions. Ground response analysis was performed using seven real earthquake records on twelve sites with different soil conditions where actual multi-utility tunnels are installed. As a result, natural periods of the sites were analyzed and new correction factors were proposed according to seismic performance and Korea's regional conditions.

Temperature dependent hydrogen exchange study of DNA duplexes containing binding sites for Arabidopsis TCP transcription factors

  • Kim, Hee-Eun;Choi, Yong-Geun;Lee, Ae-Ree;Seo, Yeo-Jin;Kwon, Mun-Young;Lee, Joon-Hwa
    • 한국자기공명학회논문지
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    • 제18권2호
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    • pp.52-57
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    • 2014
  • The TCP domain is a DNA-binding domain present in plant transcription factors and plays important roles in various biological functions. The hydrogen exchange rate constants of the imino protons were determined for the three DNA duplexes containing the DNA-binding sites for the TCP11, TCP15, and TCP20 transcription factors using NMR spectroscopy. The M11 duplex displays unique hydrogen exchange property of the five base pairs in the first binding site (5'-GTGGG-3'). However, the M15 and M20 duplexes lead to clear changes in thermal stabilities of these five base pairs. The unique dynamic features of the five base pairs in the first binding site might play crucial roles in the sequence-specific DNA binding of the class I TCP transcription factors.

자연경과지 내에서 정자의 시각적 영향에 관한 연구 (A study on the Visual Impact of Pavilions In Natural Landscapes)

  • 서주환
    • 한국조경학회지
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    • 제23권2호
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    • pp.17-28
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    • 1995
  • The purpose of this thesis is to suggest basic objective data for landscape planning and design through the quantitative analysis of the visual impact of pavilion situated in natural landscapes. For this, naturality and visual preference scores of landscape s1ides were measured by questionnaires, visual volumes of pavilion in the natural landscape were evaluated using the Mesh analysis and images structure was analyzed by the factor analysis algorithm The results of this thesis can be summarized as follow. Landscape slides No. 27 and 9 were ranked more highly for naturality, and slides No.22, 28, 6 and 4 were ranked more highly for visual preference. Factors covering the spatial image of the natural landscape were found to be the evaluation, the tidiness and the space volume. By using the control method for the number of factors, T. V., were obtained as 59.0%. For all experimental landscape slides, the factors of evaluation and tidiness were found to be the main factors determining the naturality and visual preference. The naturality and actor scores and the visual preference and factor scores were found to exepress the regression relation.

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Determinants of Bilateral Foreign Direct Investment Intra-ASEAN : Panel Gravity Model

  • Zebua, Hasrat Ifolala;Nasrudin, Nasrudin
    • Asian Journal of Business Environment
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    • 제6권1호
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    • pp.19-24
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    • 2016
  • Purpose - This paper aims to find and analyze factors that determine the flows of bilateral foreign direct investment in intra-ASEAN. It specifically focuses on the dimension of macro-economic, natural resources, human resources, and the quality of governance. Research design, data, and methodology - Data were collected from 64 bilateral relations between ASEAN nations from 2002 to 2013. Panel gravity model was utilized to find factors that determine the flows of bilateral foreign direct investment. Results - Significant factors were identified that determine the flows of bilateral foreign direct investment: GDP home country, GDP host country, real interest rate, distance, and total natural resources rent. Unexpectedly, natural resources have a negative effect. Conclusions - In a situation of increasing the flow of FDI among the countries of ASEAN, the government should control the interest rates and maintain good relations with nearby countries. The negative effect of total natural resource rents implies that ASEAN countries should not depend on their natural resources to attract foreign investments.

都市林의 屋外레크레이션 機能과 價値의 計量的 評價에 關한 硏究 -都市林의 利用滿足度를 中心으로- (A Study on Quantitative Evaluation of Outdoor Recreation Functions and Values on Urban Forest)

  • 박찬용
    • 한국조경학회지
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    • 제18권3호통권39호
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    • pp.143-154
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    • 1990
  • This study aims at identifying factors and variables which have significant effects on users satisfaction with recreational activities and facilities in Apsan city natural park and therby establishing indicies of planning and / or development of urban forest. To test the causal models of this research, The data were gathered by self-administered questionnaires from 1,147 households in Taegu city which were selected by the multi-stage probabiling sampling method. The analysis of the data primarily consist of two phases : The first analysis dealt with exploratory factor analysis which identified major factors involved in satisfaction with recreational activities and facilities in Apasn city natural park and the second analysis tested the fit of causal models of this research to the data using LISREL methodology. The factor analysis identified that three significant factors are involved in satisfaction with recreational activities and five significant factors are inherent in satisfaction with recreational facilities. The second phase analysis tested the fit of the causal models for satisfaction with recreational activities and facilities to the data and identified statistically significant causal linkage among overall satisfaction with the park, other indogenous factors and exogenous variables. These significant relationships represent important factors and variables that should be considered in planning and/of development of the city natural park. On the basis of there significant causal relationships implications for planning and/or development of the city natural park were suggested.

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독일의 비오톱 유형분류에 대한 고찰 (A Study on the Classification of Biotope Type in Germany)

  • 최일기;이은희
    • 한국조경학회지
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    • 제35권5호
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    • pp.73-81
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    • 2007
  • The purpose of this study is to derive policy suggestions and new orientations for biotope mapping in Korea from a review of case studies on the classification of biotope typesin Germany. This study was conducted in the following manner: First, the related literature and data on biotopes in Germany was collected. Second, the representative examples at the provincial government level and urban and residential areas were selected. Finally, the characteristics of biotope types, biotope classification systems, and biotope classification criteria were reviewed. The results of reviewing the case examples in Germany are as follows: First, the biotope types at the provincial government level were composed of patterns which existed mostly in natural areas and the corresponding areas of their conditions. Those in urban and residential areas were made up of patterns which were distributed in urban areas and their peripheries. Second, the biotope classification systems at the provincial government level consisted of three steps:large, medium and small. Those in urban and residential areas were made up of two steps: medium and small. However, it is strongly recommended to introduce the biotope classification system composed of three steps. Third, the biotope classification criteria at the provincial government level considered ecological factors and anthropogenic factors except land use forms. Those in urban and residential areas reflected mostly anthropogenic factors and ecological factors. In conclusion, this study suggests that future biotope surveys and mapping in Korea should be investigated not only in urban areas but also in natural and semi-natural areas. In addition, a specified biotope type classification system should be established in Korea.

항해승제론(亢害承制論)에 대한 제가설(諸家說) 연구(硏究) (A study on all the theories about KangHaiChengZhiLun)

  • 윤창열
    • 대한한의학원전학회지
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    • 제29권2호
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    • pp.135-150
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    • 2016
  • Objectives : KangHaiChengZhiLun (亢害承制論; If Excess Brings Harm, Lifing Qi (承氣) Restrains) was originally a theory that explained how the realms of nature remain in harmony and equilibrium. It later became an important theory for clinical trials of Traditional Chinese Medicine, explaining the physiological and pathological mechanism. Methods : The researcher considered all the annotations and the original text of SuWen(素問), LiuWeiZhiDaLun(六微旨大論) and theories of medical practitioners who applied KangHaiChengZhiLun(亢害承制論) to their clinical trials. Results & Conclusions : Wangbing (王氷) went with a theory that phenomena of Lifting Qi (承氣) take place in the realms of nature when Qi (氣) flourishes. In XinJiaoZheng(新校正), he wrote about two theories: one was that Six Kinds of Natural Factors (六氣) first work as the main Qi (本氣) but later bring about Lifting Qi. (終見下承之氣說); the other was that excessive Stagnation Qi (鬱氣) can be exploded and invite another accompanying Qi, Lifting Qi. (甚者兼其下承之氣說) Liuwansu (劉完素) had a theory that if Six Kinds of Natural Factors go disproportionately excessive, it becomes accompanied by imaginary Qi (假象) that conquers self. (反兼勝己之化說) $Wangl{\ddot{u}}$(王履) maintained that Lifting Qi usually works as a means to prevent Six Kinds of Natural Factors (六氣) from becoming rampant; but when Six Kinds of Natural Factors become overly excessive, Lifting Qi restrains them in order to maintain equilibrium. (防之與克勝說) Yutuan explained that since Excessive Qi (亢氣) does damage to the mother of Lifting Qi, Lifting Qi restrains Excessive Qi to protect Original Qi (元氣), its mother. (護救承者之元氣說) Gongtingxian was in favor of two theories: one argued that causes and symptoms of a disease differ from each other. (體用不同說); the other said that diseases are naturally cured if the patient finds out the time when Lifting Qi gains strength. (得承之時自愈說) Mashi (馬蒔) had a theory that Lifting Qi is generated when Six Kinds of Natural Factors are prosperous and reveals itself when its season comes. (極則生承氣 至本位著說) Zhangjiebin (張介賓) asserted that when Six Kinds of Natural Factors are thriving, Lifting Qi, as a restraining force, is generated to disperse the thriving natural factors and leads to a new one. (前之退而後之進說) Zhangqi (張琦)'s argument was that if Lifting Qi restrains the main Qi, a son of the main Qi is generated and every four season goes in harmony. (承氣制則生化說) Hemengyao (何夢瑤) had an argument that a son of the restrained Qi succeeds to its father and later achieves equilibrium by restraining Excessive Qi. (被克承父 制之平衡說).