• 제목/요약/키워드: Covering area

검색결과 586건 처리시간 0.022초

변산반도국립공원의 식생분포 및 녹지자연도 사정에 관한 연구 (A Study on Distribution of Vegetation and Assessment of Green Naturality in Byeonsanbando National Park)

  • 오구균;김영선
    • 한국환경생태학회지
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    • 제23권2호
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    • pp.161-168
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    • 2009
  • 변산반도국립공원을 대상으로 식생분포 실태를 파악하고 현존식생도 조사방법 및 작도 기준을 제시하는데 본 연구의 목적이 있다. 과거 국립공원의 식생조사문헌을 검토하고 현존식생 조사 및 작도기준안을 마련하여, 변산반도국립공원의 식생분포조사를 실시하였다. 변산반도국립공원의 현존식생은 총 8개 식물군락과 기타지역으로 구분되었으며, 2차림인 자연림은 소나무군락, 낙엽활엽수림, 굴참나무군락, 침엽수-활엽수혼효림 4개 식생군락으로, 조림지는 리기다소나무림, 곰솔림, 리기테다소나무림, 리기다소나무-곰솔림 4개 수림으로 구분되었다. 변산반도국립공원의 녹지자연도는 7등급 지역이 약 69.1%로 가장 넓었고, 9등급 지역은 0.36%로 매우 희소하였다. 국립공원의 체계적인 식생조사 및 관리를 위해서는 식생조사방법 및 작도 기준이 필요하다고 판단된다.

공동주택 단지 내 지반 특성 및 지반 구성에 따른 열적 특성에 관한 연구 (The Effect of the Ground Composition on Thermal Environment in Multi -residential Building Block)

  • 황효근;송두삼
    • 한국태양에너지학회 논문집
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    • 제29권5호
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    • pp.88-97
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    • 2009
  • In these days, it attracts our attention to create a green outdoor environment around the building block in urban area. Green space and permeable ground covering are increased by laws and regulations. According to these trends, variety researches for improving outdoor environment are accomplished at this moment. However, the problems for outdoor environment such as heat island effect and air contaminant in urban area are still reported. The purpose of this study is to examine the variables to affect the formation of outdoor thermal environment by quantitative analysis. As a initial study, in this paper, the effect of ground composition on changes of surface temperature and heat flux in multi-residential building were analyzed by field measurement and numerical simulation. Through field measurement, the surface temperature and heat flux of artificial ground in multi-residential building in Suwon city were measured. The result showed that the surface temperature was decreased by about $20^{\circ}C$ with afforestation of artificial ground compared with those of concrete covering. Moreover, the inner temperature of artificial ground was changed as same behaviors of outdoor temperature changes to depths of 20cm. In simulation, the effect of soil types and depth of artificial ground on the changes of the surface temperature and heat flux were analyzed. As results, the natural soil ground was more effective against lowering the surface temperature than any other cases in the analyzed cases.

Temple and Postauricular Dissection in Face and Neck Lift Surgery

  • Lee, Joo Heon;Oh, Tae Suk;Park, Sung Wan;Kim, Jae Hoon;Tansatit, Tanvaa
    • Archives of Plastic Surgery
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    • 제44권4호
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    • pp.261-265
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    • 2017
  • Periauricular paresthesia may afflict patients for a significant amount of time after facelift surgery. When performing face and neck lift surgery, temple and posterior auricular flap dissection is undertaken directly over the auriculotemporal, great auricular, and lesser occipital nerve territory, leading to potential damage to the nerve. The auriculotemporal nerve remains under the thin outer superficial fascia just below the subfollicular level in the prehelical area. To prevent damage to the auriculotemporal nerve and to protect the temporal hair follicle, the dissection plane should be kept just above the thin fascia covering the auriculotemporal nerve. Around the McKinney point, the adipose tissue covering the deep fascia is apt to be elevated from the deep fascia due to its denser fascial relationship with the skin, which leaves the great auricular nerve open to exposure. In order to prevent damage to the posterior branches of the great auricular nerve, the skin flap at the posterior auricular sulcus should be elevated above the auricularis posterior muscle. Fixating the superficial muscular aponeurotic system flap deeper and higher to the tympano-parotid fascia is recommended in order to avoid compromising the lobular branch of the great auricular nerve. The lesser occipital nerve (C2, C3) travels superficially at a proximal and variable level that makes it vulnerable to compromise in the mastoid dissection. Leaving the adipose tissue at the level of the deep fascia puts the branches of the great auricular nerve and lesser occipital nerve at less risk, and has been confirmed not to compromise either tissue perfusion or hair follicles.

이슬람교 영향을 받은 이슬람 민속복식 미의 연구 -서남아시아의 이슬람 문화권을 중심으로- (A Study on the Beauty of the Islamic Folk Costume, Affected by Islamism -Focusing on the Islam Culture Area in Southwest Asia-)

  • 서봉하;김민자
    • 한국의류학회지
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    • 제32권5호
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    • pp.808-820
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    • 2008
  • The costume of Islam cultural area has been affected by the strict social structure, formed by religion, and traditional costume of Islam has been maintained up to these days under the influence of religion. Islam Traditional Costume, which is the succession of the traditional costume of southwest Asia region, became armed with the form of closed costume due to the chastity and oppression. There are figurative features of Islam Folk Costume; first, the dimensional form due to the ampleness, covering the body, second, the reinforcement of closed form such as chador and burqa, third, the symbolism such as the adornment or incantational ornament, which has been inherited from the former times of Islam era, fourth, the color, simplified with black and white. The aesthetic values of Islam folk costume are represented with 'The beauty of abstinency', suppressing the ornamentation and color, caused by the strict social atmosphere under the influence of the form of traditional costume and religion, 'The beauty of concealment' due to the closeness, with affluent costume forms, covering the body and even concealing the face, and 'The beauty of symbol' which is demonstrated with incantational ornamentation of face and interior decoration. In some nations amongst Islam nations, the wearing of hijab is strictly regulated but black chador and burqa are regarded as negative symbols, representing the closeness and oppression of Islam. It is the product of Orientalism from the western perspective. The Islam Hijab culture is the symbol of oppression towards women, but, on the other hand, it is the device to protect women and the traditional culture, symbolizing the identity.

해도의 사용실태 조사와 개선방안에 관한 연구 (A Study on the Present Status and Improving Measure of Sea Charts)

  • 나송진;정재용;박진수
    • 한국항해학회지
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    • 제24권1호
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    • pp.1-12
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    • 2000
  • The ships over the certain navigation area or her length are required to carry charts under the relevant laws. Charts are indispensible to the ships and fishing vessel, because their crew should know the water depth and location of obstacle in order to avoid danger in the navigation and fishing area. But it was found that many ships do not carry proper charts onboard according to the research marine accidents files of marine accident inquiry agency, and questionnaire survey. Consequently, many ships run aground on the coast and port. This study examined the present status of the coastal ship and the fishing vessels, and explained some problems in the aspect of the covering area, the place, the number of the selling agent and adjoining chart, as well as the geographical and traffic density, the crew on board the ship's characteristics, and so on. In this study we propose the way to solve the problem. firstly, the category of the fishing vessel which should carry the chart on bard under the related laws are required to be lowered to 10 gross tons. Besides a ship inspector should examine if the charts covering the area where to navigate even when the temporary inspection is done are carried on board property. Secondly, the inspection body or the controlling office of ship's entry and departure should check throughly whether the ships concerned carry the chart on board. Thirdly the fishing vessels should used the fishing charts, and the body concerned should train the offices about how to use chart, especiany the difference between Tokyo datum and WGS-84 datum. Fourthly the customized chart such as an atlas like a map, a calenda-type chart, a small chart, as a coated chart needs to be publish for the safety of small ship and fishing vessel. Fifthly, it is advisable to draw a recommended course in the route where the coastal navigate mainly and in the narrow channel, The adjoining area should be improved, as well as the qualify of the chart paper. Sixthly, publication of additional new chart in the southern part of East Sea, the eastern part of South Sea, the western part of South Sea and middle part of Yellow Sea near Incheon port should be thought over. Seventhly, the number of chart selling agent should be increased for the sake of purchaser in proportion to the number of port, and small correction of charts in selling agent must be carried out completely.

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A Ten-Year Analytical Comparative Study on the International Journal of Consumer Studies

  • Shin, Dongjin
    • 유통과학연구
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    • 제12권7호
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    • pp.63-75
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    • 2014
  • Purpose - This study analyzes topics discussed in the International Journal of Consumer Studies through a content analysis, to reveal the impact of cross-cultural management in consumer research. Research Design, Data, and Methodology - The International Journal of Consumer Studies has the highest impact factor among international consumer journals, and was chosen for research. This study investigated 712 articles, covering a ten-year period. Results - A total of 82 articles were found to be related to cross-cultural management, out of 712 articles. This shows a need for improvement in the area of cross-cultural management, and implies that the discipline of cross-cultural management will continue to have a significant impact on consumer studies. Conclusions - While content analyses have been conducted in the area of consumer research in the past, a comparative content analysis in the International Journal of Consumer Studies is unprecedented. This study offers insights on the comparative analysis of general articles and articles related to cross-cultural management, which will be useful reference points for future global markets and fields in distribution and consumer research.

비선형 회귀 모형을 이용한 서울지역 오존의 고농도 현상의 모형화 (Modeling of High Density of Ozone in Seoul Area with Non-Linear Regression)

  • 정수연;최기헌
    • 응용통계연구
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    • 제22권4호
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    • pp.865-877
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    • 2009
  • 본 연구에서는 서울지역 오존의 기상상태와 추세경향에 따른 고농도 현상을 모수적 방법인 비선형회귀모형(nonlinear regression model)으로 모형화 하였다. 여기서는 1995년부터 1999년까지의 자료로부터 오존과 고농도 현상에 영향을 줄 수 있는 기상상태와 추세경향 등을 순차적으로 추가함으로써 고농도 현상을 예측하는 모형을 추정하였다.

1mm 가상 노치 반경을 이용한 용접부 피로강도 평가에 관한 연구 (Application of 1mm fictitious notch radius approach to the fatigue strength assessment of welded joint)

  • 김유일;강중규;허주호
    • 대한용접접합학회:학술대회논문집
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    • 대한용접접합학회 2004년도 추계학술발표대회 개요집
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    • pp.275-277
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    • 2004
  • Fictitious notch radius approach is based on the Neuter's microstructural support hypothesis which assumes that fatigue crack is governed by highly stressed volume of the material right on the weld toe area rather than the surface stress at a pin point of weld toe area. Variety of successes have been achieved in applying this methodology to the fatigue of welded joint, hence, it became one of recommended design procedure in IIW's recommendation as well as many ship classification societies. 1mm fictitious notch radius approach was applied to the various fatigue problems of welded joints in this study covering the effect of weld size, notch stress calculation for 3D geometry and low cycle fatigue problem. It was found that fictitious notch radius approach fumed out to be very effective and accurate in dealing with fatigue strength of welded joint.

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효율적인 원거리 데이터 전송을 위한 Zigbee 노드들의 그룹화 알고리즘 (Grouping Algorithms of Zigbee Nodes for Efficient Data Transmission to Long Range)

  • 우성제;신복덕
    • 전기학회논문지
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    • 제61권4호
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    • pp.632-638
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    • 2012
  • ZigBee network, based on PHY, MAC layer provides a specification for a suite of high level communication protocols using small, low-power digital radio based on an IEEE 802.15.4 standard. Meshing is a type of daisy chaining from one device to another. This technique allows the short range of an individual node to be expanded and multiplied, covering a much larger area. Each wireless technology that makes it to market serves a special purpose or function. Zigbee provides short-range connectivity in what is called a personal-area network (PAN). Within ZigBee PAN coordinator as manages an entire ZigBee network, the short range of frequency band was only selected because the technology allows typically less than 100 kbp or ZigBee troubles in retransmission processing and delaying data tranmission works to create unproductive condition of work. This research was proposed the method, based on short range frequency of zigBee nodes enable to long range of remote data transmission with specific algorithm tools.

Circular Ring Open-Ended Monopole Antenna with Strip for WLAN Dual-Band Operations

  • Yoon, Joong-Han
    • Journal of information and communication convergence engineering
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    • 제12권1호
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    • pp.1-7
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    • 2014
  • A novel design of a simple circular ring with open-ended monopole antenna for wireless local area network (WLAN) applications is proposed in this article. The proposed antenna consists of an open-ended circular ring and $50-{\Omega}$ microstrip feed-line. The proposed antenna is capable of generating two separate resonant modes with good impedance-matching conditions. A prototype of the proposed antenna is designed, fabricated, and measured. Acceptable agreement between the measurement and simulation results is achieved. Experimental results show that the proposed antenna has operating bandwidths of 1.99-3.04 GHz and 5.08-6.1 GHz with a return loss of less than -10 dB, covering the required bandwidths of the 2.4/5.2/5.8-GHz WLAN standards. This is a microstrip antenna for IEEE 802.11a/b wireless local area networks applications. Meanwhile, the two-dimensional (2D) radiation patterns and three-dimensional (3D) gain performance of the antenna are also observed and discussed.