• Title/Summary/Keyword: Sequence landscape

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Landscape Design Method and View Point Field of Suspension Bridges (현수교의 경관설계 방법과 시점장)

  • 양승현;김창환;한재익
    • Journal of the Korean Institute of Landscape Architecture
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    • v.29 no.2
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    • pp.50-60
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    • 2001
  • 교량설계에 있어서는 교량의 기능과 안전성, 경제성 등 구조 광학적인 면을 고려하여 설계하게 되는데 최근에는 교량의 경관설계에 관해서도 많은 관심을 갖고 있다. 그러나, 국내에선 교량의 구조적인 측면에서의 연구는 활발하게 이루어지고 있으나 교량의 경관설계에 대한 연구는 거의 이루어지고 있지 않다. 따라서, 본 연구의 목적은 교량의 구조 공학적인 판단과 경관 공학적인 판단에 의해서 교량 형식을 결정하는 방법과 선호도가 높은 현수교의 시점장을 분석하는데 있다. 교량형식을 결정하는 방법은 기초설계단계에서 Seen 경관을 고려하여 교량의 유형을 결정하고, 교량의 구조적인 정.동역학적 검토와 Seen경관.Sequence 경관 등을 고려하여 교종의 형식을 결정하게 되는 각 단계별 설계조건에 따른 교량설계 방법을 흐름도로 제시하였다. 또한, 현수교의 시점장의 범위를 정량적으로 나타내기 위해서 교량전체에 대한 시선입사각, 가까운 쪽의 주탑에 대한 시선입사각, 가까운 쪽 주탑의 외관 크기에 대한 연직시각, 교량전체가 시야에 들어올 수 있는 수평시각 등을 주시실험 자료와 Professional 현수교의 사진에 의한 구조형태의 비율 등을 측정하여 분석 교차한 결과 교량전체에 대한 시선입사각 $\alpha$=(15$\pm$7.5)$^{\circ}$, 가까운 쪽의 주탑에 대한 시선입사각 V=(30$\pm$7.5)$^{\circ}$, 가까운 쪽 주탑의 외관 크기에 대한 연직시각 18$^{\circ}$$\leq$$\delta$27$^{\circ}$, 교량전체가 시야에 들어올 수 있는 수평시각 $\theta$$\leq$60$^{\circ}$의 시점장을 얻을 수 있었다.

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A Study on the revitalization of a Cultural Street (문화의 거리 활성화 방안에 관한 연구-대전시 으능정이 거리를 대상으로)

  • Sim, Jun-Young;Lee, Si-Young
    • The Journal of Natural Sciences
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    • v.16 no.1
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    • pp.87-109
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    • 2005
  • This study aims to evaluate the cultural street and to find ways to revitalize a culture street. To achieve this, the study relied on empirical study method and the descriptive method; additionally, present condition survey was performed with a user interview. As a result, the item of 'night visit' shows the highest mean and the item of 'convenience of walking' follows. It means that this street has such a good condition in the convenience and accessibility of physical environment that it gives pedestrians pleasure like night activity and satisfying their curiosity. 5 lowest items of inquiry, however, are all about regional history and origin. It means that this cultural street did not reflect the history and embody the original form of the street. Also, this study proposes 4 type of street; a street with contents, a street with sequence, a street for pedestrians, and a street with identity.

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A Study on the Quantitative Analysis for the Forest Landscape (삼림경관에 관한 계량적 분석에 관한 연구)

  • 서주환
    • Journal of the Korean Institute of Landscape Architecture
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    • v.15 no.1
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    • pp.39-67
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    • 1987
  • The purpose of this thesis is to suggest objective basic data for the environmental design through the quantitative analysis of the visual quality included in the physical environment of forest landscape. For this, landscape values of forest landscape have been evaluated by using the Iverson method, the images structure of forest landscape's main utilizing space have been analysed by the factor analysis algorithm, degree of visual preferences have been pleasured mainly by questionnaries and SBE method, and finally these thesis can be summarized as fallow LCP with high values of Iverson factors I and IV yield high landscape value. Specifically, Iverson factor IV has been found to play the dominant. For all experimental points, significant seasonal variations in S.D. scale values have been observed. In natural parks, where artificial structures are complementary to the natural landscape, main factors of image are S.D. scales such as the visual sequence, the formal simplicity of structures, the emphasis, the unification of heterogeneous factors and the assimilation. Factors covering the spatial image of natural parks have been found to be the overall evaluation, the individual characteristics, the tidiness, the potentiality, the dignity, the intimacy and the space volume. For all seasons, factors such as the individual characteristics, the dignity, the tidiness, the potentiality, yield high factor scores. As for factors determining the degree of visual preference, variables such as the summit, the skyline, rocks, the water and the degree of natural destruction by artificial structures yield high values for all seasons.

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A Short Report on the Markov Property of DNA Sequences on 200-bp Genomic Units of Roadmap Genomics ChromHMM Annotations: A Computational Perspective

  • Park, Hyun-Seok
    • Genomics & Informatics
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    • v.16 no.4
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    • pp.27.1-27.6
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    • 2018
  • The non-coding DNA in eukaryotic genomes encodes a language that programs chromatin accessibility, transcription factor binding, and various other activities. The objective of this study was to determine the effect of the primary DNA sequence on the epigenomic landscape across a 200-base pair of genomic units by integrating 127 publicly available ChromHMM BED files from the Roadmap Genomics project. Nucleotide frequency profiles of 127 chromatin annotations stratified by chromatin variability were analyzed and integrative hidden Markov models were built to detect Markov properties of chromatin regions. Our aim was to identify the relationship between DNA sequence units and their chromatin variability based on integrated ChromHMM datasets of different cell and tissue types.

A Study on the Setting Process and Formational Characteristics of the Seonyu Eight Scenic in Gogunsan Islands (고군산 선유팔경(仙遊八景)의 설정과정과 집경(集景) 특성)

  • Jung, Woo-Jin;Hwang, Guk-Woong
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.4
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    • pp.32-50
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    • 2019
  • The present study examines the circumstances around the establishment of the Seonyu Eight Scenic Spots (仙遊八景) in Gogunsan Islands and the characteristics of the landscape of each viewing point. The study conclusions are as follows. First, since the scenic spots were first established in 1969, their content and sequences have been changed several times, and their names have also been changed to some extent. Until the 1970s, these scenic spots did not have official names for them and were often specified as 'Gogunsan Eight Scenic Spots', and excluded 'the Musan Twelve Peaks (巫山十二峰)'. In addition, viewing points of the eight scenic spots varied across periods. This suggests that, for the early form of Seonyu Eight Scenic Spots, the picturesque scenery of Gogunsan Islands, and Seonyudo Island in particular, was chosen, while eight scenic spots in its vicinity were regarded. Second, the Seonyu Eight Scenic Spots of the early 2000s, which has all eight scenic spots of now, follows the nomenclature of the traditional eight scenic spots by specifying the sequence number with a refined name in four syllables. Its first scenic spot was Mangju Waterfall (望主瀑布) and its eighth scenic spot was Seonyu Sunset (仙遊落照); currently, the first scenic spot is Seonyu Sunset and the second scenic spot is Mangju Waterfall. Such change in the sequence of viewing points resulted from differences in representative landscape resources between the periods. Third, the lack of structure and finesse due to continuous changes is directed related to the identity issue of the Seonyu Eight Scenic Spots. Above all, it is unclear by whom and when Seonyu Eight Scenic Spots was established, and there are clear traces of following the eight scenic spots in the neighboring areas such as Okgu (沃溝) and Impi (臨陂)'s Eight Scenic Spots. Moreover, it is evaluated to have an unrefined, incomplete structure due to the lack of clarity in the knowledge and information about viewing objects, when to view, and historical and cultural background. Fourth, the first scenic spot, Seonyu Sunset, has the image that dominates the entire Eight Scenic Spots. The temporary landscape, the sunset, became the best view because it was perceived as the entirety of the landscape created by the fusion of the beautiful natural elements of Seonyudo Island. Therefore, there is ample room for raising the value of other landscape resources of Gogunsan Islands by utilizing the existing perception of exploring the entire landscape of Seonyudo Island and Gogunsan Islands starting with Seonyu Sunset. This likely requires additional work to imbue each viewing point with identity and completion.

Isolation and Transcriptional Expression of CuZn Superoxide Dismutase from Codonopsis lanceolata

  • Lee, Kang;In, Jun-Gyo;Yu, Chang-Yeon;Yun, Song-Joong;Min, Byung-Hoon;Rho, Yeong-Deok;Kim, Moo-Sung;Yang, Deok-Chun
    • Plant Resources
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    • v.7 no.3
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    • pp.163-169
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    • 2004
  • To investigate the defense mechanism against the abiotic stress, a cDNA clone encoding a CuZn superoxide dismutase (CuZnSOD) protein was isolated from a cDNA library prepared from tabroot mRNAs of Codonopsis lanceolata. The eDNA, designated ClSODCc, is 799 nucleotides long and has an open reading frame of 459 bp with a deduced amino acid sequence of 152 residues. The deduced amino acid sequence of ClSODCc matched to the previously reported CuZnSODs. Consensus amino acid residues (His-45, -47, -62, -70, -79, -119 and Asp-82) were involved in Cu-, Cu/Zn-, and Zn- binding ligands. The deduced amino acid sequence of ClSODCc showed high homologies (82%-86%) regardless of species. Expression of ClSODCc by oxidative stress was increased up to 1 h after treatment and declined gradually. Much earlier and stronger expression of ClSODCc was observed in the cold stress treatment.

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An Exploratory Study on Urban Parks and Green Space System in Terms of the Open Space Network - Focused on the City of Daejeon - (오픈스페이스 네트워크 측면에서의 도시공원녹지체계에 관한 탐색적 연구 - 대전광역시를 대상으로 -)

  • Lee, Shi-Young;Lim, Byong-Ho;Shim, Joon-Young
    • Journal of the Korean Institute of Landscape Architecture
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    • v.37 no.5
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    • pp.53-63
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    • 2009
  • This study aims at presenting a plan to build an open space network system in the city of Daejeon, assuming that parks and the green space system as a broad concept are to make a network by connecting open spaces such as parks, green spaces, squares, pedestrian roads, historical spots, etc. In the case of old downtown in Daejeon, this study examined the possibility of applying an open space network in the city of Daejeon and categorize them according to the findings from examining the case area, which enables to make a plan for building an open space network system in Daejeon. As a result, public offices and business buildings as an active open space have public open spaces in front of buildings and these front public open spaces are connected to pedestrian roads(gray open space). Since these pedestrian roads are consequently connected to large parks and rivers(green or blue open space), this overall spatial sequence can form an open space system. In addition, parks and green spaces, which have been fundamental elements so far, exist in relatively small and scattered areas at the center of the city. Hence, more parks and green space are needed to improve a park and green space system. However, it is very difficult to create new parks and green spaces in downtown, especially in old downtown areas. Therefore making an open space network system which spreads out over the whole city will form a healthy open space network in the downtown area.

A Study on the Community Structure of Vegetation Landscape in Naejangsan National(I) (내장산국립공원 식물경관의 군집구조에 관한 연구(I))

  • 이규완;심경구
    • Journal of the Korean Institute of Landscape Architecture
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    • v.21 no.2
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    • pp.50-67
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    • 1993
  • This study analyzed the distribution and structure of the vegetation landscape in Naejangsan National Park. The plant distribution was investigated using a field survey. There were 72 sites sampled using the clumpled sampling method. The data derived from the investigation was analyzed using the quantitative analysis of Bray-Curtis method. The analysis was performed by the classification of TWINSPAN. The ordination of DCA and RA was used for the species composition and successional trends. The results are as follows; 1. Quercus. serrata-Q. variabilis community as 21.76(16.49$\textrm{km}^2$), was the largest community in the actual vegetation of the Naejangsan National Park. The degree of green naturality index 8 area covered 64.8% of the study area and the index 6 area did 16%. 2. Classified by the ordination of DCA and environmental variables, such as the plant community was divided into seven groups according to the altitude and forming groups; Chamaecy Paris. pisifera-P.densiflora community, P.densiflora community, Q.variailis community, T.nuciofera-A.palmatum community. 3. Ther species diversity and evenness indices of C.pisifera-P.densiflora community, P.densiflora community appeared low but C.laxiflora communitywhich was the most stable community in the study area. 4. The similarity indices between Q.variabilis community and Q.serrata-Q.variabilis community were calculated 58.84%, but those between other communities were comparatively low level. 5. The successional trends of DBH class seem to be from C. pisifera-P.densiflora community, P.densiflora community to Quercus species community and from Q.variabilis community, Q.serrata-Q.variabilis community to Carpinus species community. 6. Results suggested that the successional trends in Naejangsan National Park; P.densiflora community\longrightarrowQ.variablilis community, Q.serrata-Q.variabilis community\longrightarrowC.laxiflora community in sequence.

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A Study on the Community Structure of Vegetation Landscape in Naejangsan National Park(II) (내장산국립공원 식생경관의 군집모형에 관한 연구(II))

  • 이규완;심경구
    • Journal of the Korean Institute of Landscape Architecture
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    • v.22 no.1
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    • pp.85-100
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    • 1994
  • This study was to analyze the relationship between the community or species and environmental variables of the vegetation landscape in Naejangsan National Park. The analysis was performed by the ordination of DCA and CCA. The study was to compare and analyze the species composition status by the layer and the growth characterisics of the following vegetations ; Torreya nucifera community, Quercus variabilis - Acer palmatum community, Q. variabilis community, Q. variabilis - Sasa purpurascens community and Daphniphyllam macropodum community. The results are as follows; 1. The result of the study on the relationshkp between the stand scores of DCA ordination and environmental variables showed that the soil pH, the ammount of AV-P2O5 and the ammount of C.E.C. tend to increase while Pinus densiflora community changes to Q. variabilis - Q. serrata community and finally Carpinus laxiflora species community siginigicantly. The relation between the stand scores of CCA ordination and several enviromental variables suggested that the species of C. laxiflora and C. tschonoskii the species of Q. cariabilis and Q. serrata the species of C. pisifera, P. densiflora and Q. aliana in sequence grows in more fertile soil. 2. As the result of the analysis of the T. nucifera community showed, reproduction did not increase, and the characteristic of growth was not affected. The result is shown in the growth curve that was damaged by the climate and the human interference. 3. The A. palmatum was found to be as minor species in the middle layer and the crown areas did not have sufficient crown. 4. The result of the analysis of the relationship between Q. variabilis community and Q. variabilis - S. purpurascens community showed a decreasing tendency in the growth and number of species. 5. D. macropodum which constituted the dominance species in the middle layer had a nomal growth curve, and then the successional trend of D. macropodum species seems to be located in the climax species.

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Induced expression of three heat shock proteins mediated by thermal stress in Heortia vitessoides (Lepidoptera: Crambidae)

  • CHENG, Jie;WANG, Chun-Yan;LYU, Zi-Hao;LIN, Tong
    • Entomological Research
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    • v.48 no.5
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    • pp.416-428
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    • 2018
  • To gain an insight into the function of heat shock proteins (HSPs) in insects during thermal stress, three HSP cDNAs were identified in the transcriptome of adult Heortia vitessoides, one of the most destructive defoliating pests in Aquilaria sinensis (Loureiro) Sprenger forests. The open reading frames of HvHsp60, HvHsp70, and HvHsp90 were 1,719, 2,070, and 2,151 bp in length, respectively, and encoded proteins with molecular weights of 61.05, 75.02, and 82.23 kDa, respectively. Sequence analysis revealed that all three HSPs were highly conserved in structure. Regarding the stage-specific expression profiles, HvHsp60, HvHsp70, and HvHsp90 mRNAs were detected in all developmental stages. Regarding the tissue-specific expression profiles, the expression levels of the three HSP genes were different in various larval and adult tissues. Moreover, the expression patterns of heat-stressed larvae, pupae, and adults indicated that HvHsp60, HvHsp70, and HvHsp90 were heat-inducible. In particular, HvHsp60 transcripts increased dramatically in larvae and pupae that were heat-stressed at $40^{\circ}C$ and were upregulated in adults that were heat-stressed at $35^{\circ}C$ and $40^{\circ}C$. The expression of HvHsp70 significantly increased in all of the three different developmental stages at $35^{\circ}C$, $40^{\circ}C$, and $45^{\circ}C$. The expression of HvHsp90 obviously increased at $30^{\circ}C$, $35^{\circ}C$, and $40^{\circ}C$ in larvae and could be induced at $35^{\circ}C$ in pupae and adults. The results suggest that HSP60, HSP70, and HSP90 play a major role in protecting H. vitessoides against high-temperature stress.