• Title/Summary/Keyword: 중간벽

Search Result 67, Processing Time 0.033 seconds

A Study on the Structure Types and Concrete Strength Zoning of Domestic Tall Apartment Buildings (국내 초고층 주상복합 건축물의 구조시스템 유형과 콘크리트 강도 조닝 분석)

  • Kim, Sang-Yeon
    • Land and Housing Review
    • /
    • v.4 no.3
    • /
    • pp.295-301
    • /
    • 2013
  • In this study, cases of domestic tall residential buildings were investigated for the structural types, numbers of stories, total heights, type of lateral load resisting systems, and zoning of concrete strength. Based on these investigation data, the structural planning pattern of tall residential building was analyzed. SRC structure is main structural types of tall residential building at the initial stage of domestic tall residential building, but RC structure is substituted for main structural types since 2005. Retaining wall system is positioned at the core part of structural plan as a lateral load resisting system. Concrete strength zoning of vertical members like columns are divided by vertical heights of lower parts, middle parts, and upper parts. Basic data of structural planning of 40stories and 60 stories residential buildings was proposed based on case investigation.

Mycelial Properties of Tremella fuciformis and Hypoxylon sp. (흰목이와 Hypoxylon sp.균의 균사적 특성)

  • Chang, Hyun-You
    • The Korean Journal of Mycology
    • /
    • v.26 no.3 s.86
    • /
    • pp.321-326
    • /
    • 1998
  • Two strains, each of Tremella fuciformis and Hypoxylon sp. were isolated and their mycelial properties were investigated. T. fuciformis produced yeast-like conidia and dikaryotic mycelia from white to yellow color. The diameter of the hyphae was $1.5\;to\;3.0\;{\mu}m$, and septa with clamp connections were present. Secondary mycelia with clamp connections could produce fruitbodies on sawdust medium when the environmental conditions were suitable for fructification. The symbiotic fungus, Hypoxylon sp. produced white feather-like mycelia. But the color of old mycelia was changed to light yellow or light brown and pigmented the culture medium from light brown to brown or very dark green. Generally it did not produce conidia, but in a special case it produced conidia of which color was yellow green to grass green and of which shape was sub-elliptical with the size of approximately $3\;to\;5\;{\mu}m$.

  • PDF

A Study on the Tile Mural Decoration Design Using Colored Glass Plaster Technique (색유리 플래스터 기법을 이용한 타일 벽장식 방안 연구)

  • Kim, Seung-Man
    • The Journal of the Korea Contents Association
    • /
    • v.20 no.12
    • /
    • pp.460-470
    • /
    • 2020
  • In modern life, interior decoration has been transformed into a psychological synergistic effect of space, greatly affecting human sensibility. The main point of view in this paper is to study the discovery of new decorative effects and the possibility of products that can replace imported tiles, which account for more than 60% of the walls of indoor spaces closely related to daily life. The solution is to create point tiles using color glass plaster techniques developed in 2018 and to explore the possibility of decorating art walls to meet consumers' purchasing needs using simulations. The four patterns applied to the a paintbrush, resist printing, cutting technique, and inlaid patterns, and the traditional color development effect of the medium color suited to our sensibilities was studied. In addition, through simulation, art walls and acrylic using color glass styles were also used in the kitchen, living room and empty space of the bathroom. Based on this research, ceramic point tiles with a new perspective will be explored and the interior using walls will be activated.

Selective Interactivity and Reflexive Intermediality: Focusing on the Neflix Film (선택의 상호작용성과 성찰의 상호미디어성: <블랙미러: 밴더스내치>를 중심으로)

  • Kim, Mookyu
    • The Journal of the Korea Contents Association
    • /
    • v.21 no.8
    • /
    • pp.60-68
    • /
    • 2021
  • The purpose of this paper is to examine the formal characteristics of , which has been screened on Netflix since 2018. This film can be considered an interactive narrative because it gives viewers the opportunity to select their own narrative forks which lead to various endings. However, it also limits viewers' freedom of interactions in many ways, resulting in the pessimistic narrative world of series. In this contradictory situation, the conflict between the user's selectability and the narrator's authoriality emerges. And this collision gives rise to a complex form in which nonlinear interactive and linear narrative forms blend together. It can be understood as a form of self-reflection, such as forms of the metalepsis and breaking the fourth wall. In this paper, this particular form will be regarded as a sort of reflexive intermediality, i. e. the form for media reflexion.

A Way for Creating Human Bioclimatic Maps using Human Thermal Sensation (Comfort) and Applying the Maps to Urban and Landscape Planning and Design (인간 열환경 지수를 이용한 생기후지도 작성 및 도시·조경계획 및 디자인에의 적용방안)

  • Park, Soo-Kuk
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.41 no.1
    • /
    • pp.21-33
    • /
    • 2013
  • The purpose of this study is to find applicabilities of human bioclimatic maps, using human thermal sensation(comfort) in summer, with microclimatic in situ data and computer simulation results at the study site of downtown Daegu. This includes the central business district(CBD) area and two urban parks, the Debt Redemption Movement Memorial Park and the 2.28 Park, for urban and landscape planning and design. Climatic data and urban setting information for the analysis of human thermal sensation were obtained from in situ measurement and the geographic information system data. As a result, the CBD had higher air temperature than the parks when the wind speed was low. Relative humidities were opposite to the air temperature. Especially, same directional streets with local wind direction had lower air temperature than streets perpendicular to the wind direction. The most important climatic variable of human thermal sensation in summer was direct beam solar radiation. Also, creating shadow areas would be the most relevant method for modifying hot thermal environments in urban areas. The most effective method of creating shadow patterns was making a tree shadow over a pergola, and the second best one was making a tree shadow on the front of north directional building walls. Moreover, how to plant trees for creating shadow patterns was important as well as what kind of trees should be planted. The results of human thermal sensation were warm to very hot at sunny areas and neutral to warm at shaded ones. At the sunny areas, wide, squared shape areas had a little bit higher thermal sensation than those of narrow streets. The albedo change of building walls 0.15 and ground surface 0.1 could change 1/6 of a sensation level at the shaded areas and 1/3 at the sunny ones. These microclimatic approaches will be useful to find appropriate methods for modifying thermal environments in urban areas.

Design of Flat Plate Systems Using the Modified Equivalent Frame Method (수정된 등가골조법을 이용한 플랫플레이트 시스템의 설계)

  • Park, Young-Mi;Oh, Seung-Yong;Han, Sang-Whan
    • Journal of the Korea Concrete Institute
    • /
    • v.20 no.1
    • /
    • pp.35-41
    • /
    • 2008
  • In general, flat plate systems have been used as a gravity load resisting system (GLRS) in building. Thus, this system should be constructed with lateral force resisting system (LFRS) such as shear walls and brace frames. GLRS should retain the ability to undergo the lateral drift associated with the LFRS without loss of gravity load carrying capacity. And flat plate system can be designed LFRS as ordinary moment frame with the special details. Thus, flat plate system designed as GLRS or LFRS should be considered internal forces (e.g., unbalanced moments) and lateral deformation generated in vicinity of slab joints render the system more susceptible to punching shear. ACI 318 (2005) allows the direct design method, equivalent frame method under gravity loads and allows the finite-element models, effective beam width models, and equivalent frame models under lateral loads. These analysis methods can produce widely different result, and each has advantage and disadvantages. Thus, it is sometimes difficult for a designer to select an appropriate analysis method and interpret the results for design purposes. This study is to help designer selecting analysis method for flat plate system and to verify practicality of the modified equivalent frame method under lateral loads. This study compared internal force and drift obtained from frame methods with those obtained from finite element method under gravity and lateral loads. For this purposes, 7 story building is considered. Also, the accuracy of these models is verified by comparing analysis results using frame methods with published experimental results of NRC slab.

The cultivate characteristics and the wood rotting ability and type of the Kuehneromyces mutabilis Sing. et A. H. Smith (무리우산버섯균의 배양적 특징과 목재부후 특성 파악)

  • Yun, Dae-Ryoung;Chai, Jyung-Ki
    • Journal of Mushroom
    • /
    • v.2 no.4
    • /
    • pp.192-199
    • /
    • 2004
  • The mycelial mass of K. mutabilis greatly increased at pH 5.5~6.0 but decreased pH 6.0. The linear mycelial growth wsa mostly supported on sawdust of Quercus accutisima and the mycelial density wsa high on sawdust of Q. accutisima and corn cob. Much mycelial distribution could be showen in ray parenchyma cell and ray tracheid. Severe degradation of ray parenchyma cell was found but little degradation of ray tracheid cell was found. The dry weight loss wsa 5.9% after agar-block test. And the pH wsa acidified from 6.07 to 4.31 and hot water extractives was decreased after degradation of Q. serrata sawdust by K. mutabilis.

  • PDF

Characterization and Frequency of Vancomycin Resistance in Staphylococcus aureus Isolated in Korea (국내에서 분리된 포도상구균의 Vancomycin 내성빈도 및 특성)

  • 박성언;김종배
    • Biomedical Science Letters
    • /
    • v.6 no.3
    • /
    • pp.201-208
    • /
    • 2000
  • The vancomycin, one of the family of glycopeptide antibiotics, inhibits the synthesis of bacterial cell wall peptidoglycan and has been widely used against gram-positive bacterial infections, especially for a treatment of methicillin resistant S. aureus infection. However, clinical isolate which was intermediately resistant to vancomycin (Mu50: MIC 8 $\mu\textrm{g}$/ml) was isolated in recent years. In this study we performed vancomycin susceptibility test with the increment method and population analysis with clinical isolates S. aureus. Also we did several kinds of tests with three selected isolates (s129: MIC 7 $\mu\textrm{g}$/ml, s134: MIC 7 $\mu\textrm{g}$/ml, s135: MIC 8 $\mu\textrm{g}$/ml) to find out possible mechanism of vancomycin resistance. As a result, the prevalence of vancomycin resistant S. aureus isolates among S. aureus strains resistant to methicillin was 23.3% (25/107). The vancomycin resistances of isolated strains of S. aureus were between those of Mu5O and Mu3 strains. By PCR analysis, none of the isolates with decreased vancomycin susceptibility contained known vancomycin resistant genes such as vanA, vanB, vanC1, vanC2, and vanH. Major bands of 81 kDa, 58 kDa, 33 kDa, 28 kDa were demonstrable in whole cell lysates by SDS-PAGE from all three isolates as well as reference strains. And especially,45 kDa protein was overproduced in Mu50 strains. Among them increased production of NAD$^{+}$-linked-$_{D}$-lactate dehydrogenase (dnLDH) were detected from one clinical strain (s135) and Mu5O strain. From these data, we suggest that the mechanism of vancomycin resistance in these isolates are distinct from that in enterococci.

  • PDF

Micromorphological Characteristics of Buddhist Temple Woods Treated with Eire-retardant (방염 처리 고목재의 미생물 분해의 미시형태적 특징)

  • Wi, Seung Gon;Kim, Ik-Joo;Park, Young Man;Kim, Yoon Soo
    • 한국문화재보존과학회:학술대회논문집
    • /
    • 2001.11a
    • /
    • pp.27-34
    • /
    • 2001
  • Following the recommendations made by the cultural authorities the wooden cultural properties (WCP) had been treated with fire-retardants for fire protection. However, visual inspections of some of the WCPs treated with fire-retardants showed microbial decay. The work was extended to examine the micromorphological characteristics of the WCPs in a Buddhist temple which had been treated with fire-retardant. Microscopic examination showed the presence of typical soft rot cavities along the length of microfibrils in the secondary wall. Bacterial attack was also observed by scanning and transmission electron microscopy. It is interesting that the decay patterns observed in the Buddhist temple were very similar to those observed in the waterlogged woods. Presumably chemicals in the fire-retardants used rendered the wood susceptible to attack by soft-rot and bacterial decay by causing an increase in the moisture content of wood. Further studies are needed to investigate the effect of fire-retardants used currently on the hygroscopicity and the strength of wood materials in the WCPs. Microbial attacks caused degradation of the secondary cell walls and in some cases also of the middle lamella. In addition, the cell walls in the outer parts of wood were also degraded due to weathering, and cell separation occurred from total disintegration of the middle lamella.

  • PDF

A study on the state of the art on the construction and the new technology of the underground structure(underpass, underground passageways) (지하구조물(지하차도, 지하통로)건설 현황 및 관련 신기술 개발동향 연구)

  • Kim, Hyung-Tae;Han, Man-Yop;Son, Yeun-Jin;Han, Rok-Hee;Jeong, Ji-Man
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2008.11a
    • /
    • pp.891-894
    • /
    • 2008
  • This study was performed to investigate how to design, where to construct, why to degrade, what plan to use systematically the underground structures such as underpass, underground passageways. About 50% of the underground structures are located on Seoul, Kyungi-Do. In design of the underground structures such as underpass, underground passageways, the required conditions are defined. And also in construction stage, the conditions of soil, required structure depth, site characteristics, reasonable construction method, are investigated. In the selection of details for underground structure, the items mainly considered, are the wall and column type, the sidewalk type, anchoring-system type, the water-proofing method, entranc shape. The reason and the adequate measures for the degradation of concrete structure are also investigated. The initial cracking properties due to the thermal characteristic are considered. The state of the art report on the new technologies are reviewed. The recent project for the systematically application to the underground structures is reviewed.

  • PDF