• 제목/요약/키워드: the damaged part

검색결과 450건 처리시간 0.027초

감나무애매미충, Zorka sp. (매미목: 애매미충아과)에 의한 감 (Diosprosi kaki) 피해 보고 (Report on Zorka sp. (Homoptera: Typhlocybinae) as a Pest of Persimmon (Diosprosi kaki) in Korea)

  • 황인천;임태헌;이석준;박정규;추호렬;이동운
    • 한국응용곤충학회지
    • /
    • 제48권4호
    • /
    • pp.479-484
    • /
    • 2009
  • 2008년 6월 15일 경북 상주의 상주둥시 감나무 (Diospyrosi kaki)에서 매미충이 채집되었다. 매미충은 감나무 잎에 심각한 피해를 주고 있었으며 Zorka속의 신종으로 확인되었다. 피해 잎은 앞면쪽에 1 mm 이하의 흰색 반점이 엽맥 주위부에 형성되었고, 피해가 심해지면 잎 전체에 반점이 형성되었다. 엽당 4마리 밀도로 접종 시 4일 후부터 피해 흔적이 확인되었다. 2008년과 2009년 6월에서 8월 사이 6개도 11개 시 군 감나무 과원에서 Zorka sp.에 의한 피해지역을 조사하였다. 조사과원 중 15.4%인 22개 과원에서 피해가 확인되었다. 충북 영동지역에서는 40.7%의 과원이 피해를 받고 있었고, 전북 완주지역에서는 33.3%가 피해를 받고 있었다. 반면 남부지역인 경남과 제주지역에서는 피해 과원이 없었다. 피해과원이 많았던 충북 영동지역의 경우 11개 피해 과원 중 9개 과원이 포도밭과 인접해 있었다.

Landsat영상과 수문모형을 이용한 태풍 RUSA에 의한 수문영향 분석 (Analysis of Hydrological Impact by Typhoon RUSA using Landsat Images and Hydrological Model)

  • 이미선;박근애;김성준
    • 한국수자원학회논문집
    • /
    • 제38권5호
    • /
    • pp.391-399
    • /
    • 2005
  • 본 연구의 목적은 태풍 피해로 인한 토지피복변화가 수문변화에 미치는 영향을 평가하는 것이다. 2002년 8월 31일부터 9월 1일까지 발생한 태풍 루사(1,402mm)가 강릉 남대천 유역에 미친 영향을 파악하기 위하여 2000년 9월 29일 Landsat 7 ETM+ 영상(태풍 전)과 2002년 9월 11일 Landsat 5 TM영상(태풍 후)을 선정하여 각각 토지피복도를 작성하였다. 유역유출과 하도추적에 대해 WMS HEC-1의 SCS 무차원 단위도법과 Muskingum 법을 각각 적용하였고, 30m 해상도의 DEM과 수문학적 토양군 1:50,000 토양도를 사용하였다. 1985년의 토지피복을 바탕으로 1985년부터 1988년의 기간 중 사용가능한 3개의 강우사상을 선정하여 모형을 보정하였다. 피해지역에 대한 빈도별 유출량 변화를 분석하기 위하여 50년에서 500년까지 빈도별로 Huff 2분위 24시간지속 확률강우량을 생성하여 적용하였다. 태풍후의 토지피복상태에서 피해지역의 지표피복이 나지로 변함에 따라 AMC-I에서 50년 빈도 강우에 대해 $50.1\;m^3/sec$의 유출량이 증가하였고, 500년 빈도 강우에 대해서 $67.6\;m^3/sec$가 증가하였다. 향후 태풍피해 발생시 정부의 신속한 대처를 가능하게 할 것으로 판단된다.

전북지역 노지 고추에서의 총채벌레 발생과 피해 (Seasonal occurrence and damage by thrips on open red pepper in Jeonbuk Province)

  • 문형철;조인권;임주락;고복래;김대향;황창연
    • 한국응용곤충학회지
    • /
    • 제45권1호
    • /
    • pp.9-13
    • /
    • 2006
  • 전북지역 노지 고추 포장에서 총채벌레의 발생소장과 피해 정도를 조사하였다. 고추에 발생하는 총채벌레는 꽃노랑총채벌레와 대만총채벌레이었다. 총채벌레는 5월 5반순 이후 증가하기 시작하여 7월 $2{\sim}4$반순경에 발생이 가장 많았으며 4차례의 발생최성기를 나타냈다. 1차 발생최성기는 6월 4반순, 2차는 7월 2반순, 3차는 8월 3반순, 4차는 9월 4반순이었다. 총채벌레에 의한 고추 피해증상은 과실 끝부분에 부착된 꽃잎 밑에서 총채벌레가 가해함에 따라 이 부위에 검은색의 가해흔이 남게 되며, 고추가 붉게 변해감에 따라 피해부위가 백색으로 되는 것으로 이에 따른 상품가치가 하락되게 된다. 또한 기형과의 발생이 많아지게 되며 과실 꼭지 부분이 총채벌레가 가해함에 따라 거칠게 되는 것으로 조사되었다. 총채벌레에 의한 피해과율은 8월 상순에 임실지역에서 20.8%로 가장 높았으며, 꽃당 발생밀도는 7월 중순에 가장 높았다.

등록문화재 제255호 영양 구 용화광산 선광장의 비파괴 훼손도 진단 (Nondestructive Deterioration Diagnosis for the Former Ore Dressing Plant in the Yongwha Mine of Registered Cultural Property No. 255)

  • 전유근;이찬희
    • 보존과학회지
    • /
    • 제28권3호
    • /
    • pp.235-245
    • /
    • 2012
  • 이 연구에서는 경북 영양 용화광산 선광장(등록문화재 제255호)을 대상으로 비파괴 훼손도 진단을 실시하였다. 훼손지도를 작성하여 구조물에 대한 훼손상태를 파악한 결과, 6열과 7열 구조물을 기점으로 하여 용화광산 선광장 상부(7~13열)에서는 생물, 토사에 의한 훼손율이 높은 반면 하부(1~6열)에서는 탈락, 균열, 표면변색의 훼손율이 매우 높게 나타났다. 이는 기계적인 공정과 화학적인 공정이 동시에 진행되는 하부 구조물에서 화학용액들이 구조물의 콘크리트와 반응하면서 물리화학적 풍화작용을 촉진시켰기 때문으로 판단된다. 선광장 구조물의 물성을 파악하기 위해 초음파속도를 측정한 결과, 평균 초음파속도는 2,462m/s(압축강도 $529kgf/cm^2$)로 측정되었다. P-XRF를 활용한 표면변색 오염물질의 분석에서는 용화광산에서 채굴하였던 광석들의 주요성분(Cu, Zn, Pb, Fe, As)과 동일한 것으로 나타났다. 선광장 주변 토양에는 Cu, Zn, Pb, As와 같은 중금속의 함량이 상당히 높았다. 이와 같은 성분들은 선광장 구조물뿐만 아니라 자연환경에도 영향을 줄 수 있기 때문에 구조물의 보존처리와 함께 토양의 정화도 병행해야 할 것이다.

도시공원내 잔디밭 가로지르기 흔적 분석 (The Analysis on the Traces of Short Pass Behavior on Lawn Fields in Urban Parks)

  • 노재현;강인애
    • 한국조경학회지
    • /
    • 제32권1호
    • /
    • pp.33-46
    • /
    • 2004
  • This study is aimed to redesign established parks and to propose a series of devices protecting them from vandalism. To solve the problems, we ascertained the damaged areas of the park greens. The trace analysis was performed to grasp the transverse inside the parks of Jeonju and Iksan in Collabuldo. Then, we presented the basic plan for minimizing park damage and for remodeling the system of movement. The results of the study are summarized as follows: it is identified that the transverse phenomenon is considerably wide-spread in majority of parks, and has no relationship to the park area or the green area. It is considered that the $\ulcorner$Condition rating class$\lrcorner$ of grass damage, which is grade 6, is extraordinarily high and the damage is accumulated considerably. Also, the damage part of other grade is discovered equally, and when unattended, the acceleration of damage is positive. A damage width a 0.5∼1.5m makes up the greater part of 79.6%. It also constitutes most of a rectilinear form. The difference in the height between the original point and destination point is below 0.7m, which is above 70%. It is identified that the interrelationship between the damage continuation length and plan distance is relatively high by the simple regression: analysis and by Pearson' correlation analysis. In spite of the normal damage continuation length is 20m, the frequency degree is downward with extreme point at 10m. Accordingly, it is assumed that park users have physical and psychological pressure when they cross the lawn field. Damage types are classified as the Simple cut cross type, the Behavioral facilitates type, Access advantage type and the Strolling type through type classification. It is considered that this classification is effective when identifying short pass type on lawn field according to the damage length and intensity.

유한 요소 해석을 이용한 DED 공정의 코너 반경 및 위치에 따른 보수 영역 부근 잔류응력 분포 영향성 조사 (Investigation of the Influence of Radius and Corner Position on the Residual Stress Distribution in the Vicinity of the Repaired Region via Directed Energy Deposition by using Finite Element Analysis)

  • 알리예브 알리술탄;이광규;안동규
    • 한국기계가공학회지
    • /
    • 제20권7호
    • /
    • pp.33-40
    • /
    • 2021
  • Current industrial flow is directed toward reducing the usage of raw materials by reusing parts, which is referred to as a circular economy (CE). Repair is one of the most value-added approaches in CE, which can be efficiently accomplished via additive manufacturing. The repair technology of metallic parts via the directed energy deposition process, which includes the selective removal and redeposition of damaged regions of metallic parts. Residual stress characteristics depend on the shape of the part and the shape of the redeposition region. The objective of this study is to investigate the effects of the radius and corner position of the substrate on the residual stresses for repair by using finite element analysis (FEA). The residual stress distribution of the 45° angle groove at the edge of the circular shape models on the outer and inner radii was analytically investigated. The analysis was accomplished using SYSWELD software by applying a moving heat source with defined material properties and cooling conditions integrated into the FEA model. The results showed a similar pattern of concentrated stress distribution for all models except the 40-mm and 60-mm radii, for which the maximum stress locations were different. The maximum residual stresses are high but lower than the yield strength, suggesting the absence of cracks and fractures due to residual stresses.

메디컬피부케어를 위한 에센셜 오일 적용방법에 대한연구 (A Study on the Medical Care System using Essential Oil)

  • 이애순
    • 한국패션뷰티학회지
    • /
    • 제5권3호
    • /
    • pp.111-117
    • /
    • 2007
  • Essential oils aims to rejuvenate and beautify medical skin care the body through the use of essential oils, and generally to improve our outward appearance. Much of this section fouses on the different methods by which essential oils can be used to improve the complexion or to treat specific medical care skin conditions. Beauty, however, is not just skin-deep. The condition of the medical care express the overall health of an individual. A relaxed attitude, together with a well-balanced diet, enough exercise, and a daily intake of plenty of spring water or herbal teas, all help to keep the system in top condition. Essential oils is a healing art which has powerful effects on both mind and body. The vital element in essential oils is the pure oils which are extracted from various part of different plants. The key to medical aromatherapy care lies in its dual use of essential oils and medical care massage, thus masking full use of two of our most important senses-smell and touch. Medical aromatherapy care is holistic, working mainly on the nervous system and including the head and body as part of the same treatment. Using pressure points along the spine, Medical aromatherapy care on the autonomic nervous system and has an immediate effect of relexation. In directly it also acts on mood. Many of the medical massage movements help lymphatic drainage. Essential oils have many different qualities; they can be relaxing or invigorating and are generally antisepic and antibacterial. Medical aromatherapy care can have psychological benefits. The power of essences in healing has been recognized in the treatment of insect bites. Clove, thyme, sandalwood, and lavender are a few of the essences that have antiseptic. Essential oils effect the dry skin for small visual pores, dull matte finish, rough sandy feeling, tantskin. Essential oils effect the mature/sun damaged skin for some red or couperose areas, loose saggy skin, exposure to a lot of ultraviolet light. Essential oils effect the medical care nomal skin good elasticity, healthy color(good circulation), smooth terture.

  • PDF

자연재해로 인한 어업피해 전보방안에 관한 연구 (A Study on the Indemnity System of Fishery Damage by Natural Disasters)

  • 김인유
    • 수산해양교육연구
    • /
    • 제26권5호
    • /
    • pp.1044-1057
    • /
    • 2014
  • This study has seen about a indemnity system of fishery damage by natural disasters such as a problem and improvement methods of government aid system and system on accident insurance for cultured fishery products. Recently, in the situation that the demage of aquaculture industry caused by frequent typhoon resulted from global warming and abnormal changed of weather is nasty, the accident insurance for cultured fishery products is necessary to show its true quality and to protect fishers against natural disasters owing to the limitation of government's aid for them. However, The objects of accident insurance for cultured fishery products which is progress on, is too short to apply, so that it is absolutely insufficient to fulfill the demands of culturing fishermen. Therefore, It could be a certain preparation to magnify the range of object items of it and to convert the trial industry being adjusted to limited area into full scale industry to adjust over all nationally. Furthermore, This insurance is complicated and strict to join rather than other insurances. As it can be seen by examples that got in trouble, despite culturing fishermen applied to join the insurance, they took all demage because the insurance was not realized. So, It is hard to say that causes impute the responsibility of it to the authority of insurance, not culturing fishery. They should simplify the registration process, limit the period each registration process and consider a countermeasure to complete it. Concerning compensation for the loss, agriculture part is easier to investigate the loss due to remained dead crop damaged by natural disaster, meanwhile, in fishing part, especially in case of cultivation of fish, it is difficult to investigate the loss and demage because crops are blown all together with typhoon when it comes plus the facilities of them are also very old. Consequently to solve the problem needs more positive attitude as it is policy insurance.

기록화된 고고자료의 복원과 활용방안에 대한 연구 (A Study on Restoration and Utilization of Recorded Archaeological Data)

  • 허의행
    • 디지털콘텐츠학회 논문지
    • /
    • 제18권4호
    • /
    • pp.723-731
    • /
    • 2017
  • 고고자료의 복원은 과거 기록물로 남겨진 사진과 도면자료를 이용하여 진행하였다. 크게 유구와 유물로 구분하여 살펴보았다. 유구에 대한 복원은 사진으로 남겨진 개개 부위 및 부분을 모델링하고, 이들을 정렬 및 합성하여 하나의 객체로 3차원 복원하였다. 유물에 대한 복원은 사진을 통한 모델링 작업을 우선한 후, 모델링된 유물의 파손 부위에 대한 텍스쳐 이미지를 수정하여 원상 복원하거나, 유물 내 결실부위에 대한 모델링 제작과 합성을 통한 원상을 복원하는 방식이 있다. 도면을 통한 복원은 3차원 모델링 제작과 함께 이미지의 실사맵핑을 통한 복원을 진행하였다. 이렇게 복원된 고고자료는 과거 2D자료를 통한 수치 분석과 해석의 연구성과를 검증하고 비교를 진행할 수 있으며, 추후 더욱 정확한 분석 방안을 제시할 수 있다.

국가재난의료체계에 대한 정책적 고찰 (A Strategic Study on National Disaster Medical System)

  • 백홍석
    • 한국응급구조학회지
    • /
    • 제7권1호
    • /
    • pp.235-246
    • /
    • 2003
  • Due to major disasters Korea has been damaged, and they caused lots of casualties: for last ten years natural disasters caused 1288 deaths including missing people; human disasters including industrial disasters brought as many as 4,512.148 casual ties (126,372 deaths with 4,385,400 injuries); and they cost 44.1 trillion property damage. However, even though major disasters have brought about tremendous human loss and property damage, Koreas National Disaster Medical System to rescue casualties is insufficient, and it has not been activated. Fortunately, through major disaster management process, the National Disaster Management System has been developed, increasing its own efficiency, and resulting in to organize an Office of Firefighting and Prevention of Disasters under the central government. Considering the value of human lives, the disaster medical part, in the U.S.A. as well as in Korea, must have an independent organization in the government, not as one sector of the government department. It will have its own organizational structure, such as disaster planning, operation, and logistics, and interact with central and local government or between local government agencies. So each agency will cooperate and supply resources interchangeably. Also, with the system of disaster management and restoration, the disaster medical system must be advanced in keeping step. Its role must be extended due to the possibility of biological terror or SARS around the world, resulting in severe casualties. Korea has the Emergency Medical Service System based on the regulation of emergency medical care, yet it is a part of the National Disaster Management System. It must be managed independently apart from it. As we see the emergency medical technicians playing as the backbone in disaster medical care in the US, we should have legal foundations for Koreas emergency medical technicians, emergency medical providers, to participate in rescue operation actively. At the same time, we need to have a national register system to classify disaster medical resources, and a total plan to place resources according to the impact of disaster, and how to organize teams. We also need to draw up a scheme to activate civil disaster medical resources, as integrating public and private or voluntary organizations.

  • PDF