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프라이버시와 개인화를 위한 고품질 표준 데이터 기반 약물감시 시스템 연구 (High-Quality Standard Data-Based Pharmacovigilance System for Privacy and Personalization)

  • 양세모;송인서;이강윤
    • 한국빅데이터학회지
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    • 제8권2호
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    • pp.125-131
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    • 2023
  • 전 세계적으로 약물 부작용은 주요 사망원인의 상위를 차지하고 있다. 약물 부작용에 대해 효과적으로 대응하기 위해, 능동적인 실시간 분석 기반 약물감시 체계로의 전환과 함께 데이터의 표준화와 품질 향상이 필요하다. 이를 위해, 개별 기관의 데이터를 통합하고 대규모 데이터를 활용하여 약물 부작용 예측의 정확도를 높이는 것이 중요하다. 하지만, 각 기관 간의 데이터 공유는 프라이버시 문제를 야기시키고 각기 다른 데이터 표준 구성도 다르다. 본 연구에서는 이 문제를 해결하기 위해, 개인정보보호 법규에 따라 데이터를 직접 공유하지 않고 모델의 학습 결과를 공유하는 연합학습 방식을 채택한다. 각 기관마다 다른 데이터포맷을 Common Data Model(CDM)을 활용하여 데이터 표준화를 수행하고 데이터의 정확성과 일관성을 확립한다. 또한, 클라우드 기반의 연합학습 환경을 구성하여 보안 및 확장 관리에 효율성을 높이는 약물감시 시스템을 제안한다. 이를 통해 기관 간 데이터의 프라이버시를 보호하면서도, 효과적인 의약품 부작용 모니터링과 예측이 가능하다. 약물 부작용으로 인한 사망률 감소와 의료비용 절감을 목표로 하며, 이를 실현하기 위한 다양한 기술적 접근과 방법론을 탐구한다.

시네마픽 : 생성형 AI기반 영화 컨셉 포토부스 시스템 (CINEMAPIC : Generative AI-based movie concept photo booth system)

  • 정석현;임승규;이정진
    • 한국컴퓨터그래픽스학회논문지
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    • 제30권3호
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    • pp.149-158
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    • 2024
  • 오프라인에서 사진을 촬영하는 포토부스는 자신이 원하는 포즈와 소품 등을 통해 자연스럽게 나다운 모습을 촬영할 수 있으며, 함께한 사람들과 추억을 공유하는 특별한 경험을 선사한다. 최근 다양한 표현을 가능하게 하고자 생성형 AI를 활용한 포토부스 사례들이 등장했다. 그러나 기존 AI 포토부스는 단체 사진 촬영이 불가능하고, 대부분 사용자의 포즈를 반영하지 못하며, 개별 인물마다 다른 컨셉을 적용하기 어려운 한계가 존재한다. 본 연구는 이러한 문제를 해결하여 사용자가 자유롭게 포즈와 위치, 컨셉을 선택하여 촬영할 수 있는 AI 포토부스 시네마픽을 제안한다. 인물별 개별 컨셉 적용을 위해 개별 생성 워크플로우를 전처리, 생성, 후처리 세 단계로 설계하고, 이를 실제 프로토타입으로 구현했다. 이 과정에서 인물별 투명 이미지 생성, 배경 생성 후 합성시 발생하는 아티팩트를 줄이는 재생성 테크닉, 최적화 모델 적용 및 GPU 병렬화 등 다양한 방식을 워크플로우에 통합하여 한계점을 극복하였다. 사용자 품질 평가와 약 400명의 사용자를 대상으로 대규모 시범 운영을 통해 시스템의 효과성을 검증했다. 그 결과, 사용자들은 기존 방식에 비해 높은 선호도를 보였으며, 이를 통해 실제 포토부스로의 도입 가능성을 확인했다. 본 연구에서 제안하는 AI 포토부스 시네마픽은 더욱 창의적이고 차별화된 시장을 개척할 수 있을 것으로 기대하며, 앞으로 다양한 응용 분야에서 널리 활용될 것으로 기대된다.

기상청 동네예보의 영농활용도 증진을 위한 방안: 2. 강수량 분포 상세화 (Improving Usage of the Korea Meteorological Administration's Digital Forecasts in Agriculture: 2. Refining the Distribution of Precipitation Amount)

  • 김대준;윤진일
    • 한국농림기상학회지
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    • 제15권3호
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    • pp.171-177
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    • 2013
  • 본 연구는 기상청에서 제공하는 강수 실황 혹은 예보로부터 농업부문에서 활용 가능한 수준의 상세한 강수분포도를 제작하기 위한 방안으로서, 레이더 반사강도를 KLAPS 5km 강수자료에 적용하여 1km 격자해상도로 상세화 하는 1단계와, 고해상도 DEM에 근거한 지표면 경사방향(지향면)에 따라 고도-강수량 회귀 계수를 달리하여 지형효과를 반영하는 2단계 등으로 이루어진 추정기법을 고안하였다. 이 기법의 현실세계 적용방법 모색 및 신뢰도 평가를 위해 경상남도 하동군 악양면을 실험 집수역으로 설정하고 2013년 1월부터 5월까지 총 19사례의 강수에 대해 기상청으로부터 KLAPS 강수자료를 수집하였다. 1단계로는 강수일의 24시간 적산 레이더에코 자료를 이용하여 1km 해상도로 자료의 규모를 축소하였다. 2단계로는 1km 격자점의 값을 가상의 관측자료로 삼아 270m 해상도에서 PRISM 기반의 지형효과를 반영한 강수량 분포도를 생성하였다. 실험 집수역에 13대의 무인기상관측장비를 다양한 고도 및 지형조건에서 설치하고, 추정된 강수분포도로부터 13개 지점에 해당하는 격자점의 자료를 추출하여 실측값과 비교하였다. 일 강수량 10mm 이상의 사례에서는 모든 관측지점에서 추정오차 감소효과가 인정되었으며, 특히 일강수량이 30mm 이상인 사례에서 평균 35% 이상의 오차감소효과를 확인하였다.

중국군의 해양작전능력과 한국군의 과제 (PRC Maritime Operational Capability and the Task for the ROK Military)

  • 김민석
    • Strategy21
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    • 통권33호
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    • pp.65-112
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    • 2014
  • Recent trends show that the PRC has stepped aside its "army-centered approach" and placed greater emphasis on its Navy and Air Force for a wider range of operations, thereby reducing its ground force and harnessing its economic power and military technology into naval development. A quantitative growth of the PLA Navy itself is no surprise as this is not a recent phenomenon. Now is the time to pay closer attention to the level of PRC naval force's performance and the extent of its warfighting capacity in the maritime domain. It is also worth asking what China can do with its widening naval power foundation. In short, it is time to delve into several possible scenarios I which the PRC poses a real threat. With this in mind, in Section Two the paper seeks to observe the construction progress of PRC's naval power and its future prospects up to the year 2020, and categorize time frame according to its major force improvement trends. By analyzing qualitative improvements made over time, such as the scale of investment and the number of ships compared to increase in displacement (tonnage), this paper attempts to identify salient features in the construction of naval power. Chapter Three sets out performance evaluation on each type of PRC naval ships as well as capabilities of the Navy, Air Force, the Second Artillery (i.e., strategic missile forces) and satellites that could support maritime warfare. Finall, the concluding chapter estimates the PRC's maritime warfighting capability as anticipated in respective conflict scenarios, and considers its impact on the Korean Peninsula and proposes the directions ROK should steer in response. First of all, since the 1980s the PRC navy has undergone transitions as the focus of its military strategic outlook shifted from ground warfare to maritime warfare, and within 30 years of its effort to construct naval power while greatly reducing the size of its ground forces, the PRC has succeeded in building its naval power next to the U.S.'s in the world in terms of number, with acquisition of an aircraft carrier, Chinese-version of the Aegis, submarines and so on. The PRC also enjoys great potentials to qualitatively develop its forces such as indigenous aircraft carriers, next-generation strategic submarines, next-generation destroyers and so forth, which is possible because the PRC has accumulated its independent production capabilities in the process of its 30-year-long efforts. Secondly, one could argue that ROK still has its chances of coping with the PRC in naval power since, despite its continuous efforts, many estimate that the PRC naval force is roughly ten or more years behind that of superpowers such as the U.S., on areas including radar detection capability, EW capability, C4I and data-link systems, doctrines on force employment as well as tactics, and such gap cannot be easily overcome. The most probable scenarios involving the PRC in sea areas surrounding the Korean Peninsula are: first, upon the outbreak of war in the peninsula, the PRC may pursue military intervention through sea, thereby undermining efforts of the ROK-U.S. combined operations; second, ROK-PRC or PRC-Japan conflicts over maritime jurisdiction or ownership over the Senkaku/Diaoyu islands could inflict damage to ROK territorial sovereignty or economic gains. The PRC would likely attempt to resolve the conflict employing blitzkrieg tactics before U.S. forces arrive on the scene, while at the same time delaying and denying access of the incoming U.S. forces. If this proves unattainable, the PRC could take a course of action adopting "long-term attrition warfare," thus weakening its enemy's sustainability. All in all, thiss paper makes three proposals on how the ROK should respond. First, modern warfare as well as the emergent future warfare demonstrates that the center stage of battle is no longer the domestic territory, but rather further away into the sea and space. In this respect, the ROKN should take advantage of the distinct feature of battle space on the peninsula, which is surrounded by the seas, and obtain capabilities to intercept more than 50 percent of the enemy's ballistic missiles, including those of North Korea. In tandem with this capacity, employment of a large scale of UAV/F Carrier for Kill Chain operations should enhance effectiveness. This is because conditions are more favorable to defend from sea, on matters concerning accuracy rates against enemy targets, minimized threat of friendly damage, and cost effectiveness. Second, to maintain readiness for a North Korean crisis where timely deployment of US forces is not possible, the ROKN ought to obtain capabilities to hold the enemy attack at bay while deterring PRC naval intervention. It is also argued that ROKN should strengthen its power so as to protect national interests in the seas surrounding the peninsula without support from the USN, should ROK-PRC or ROK-Japan conflict arise concerning maritime jurisprudence. Third, the ROK should fortify infrastructures for independent construction of naval power and expand its R&D efforts, and for this purpose, the ROK should make the most of the advantages stemming from the ROK-U.S. alliance inducing active support from the United States. The rationale behind this argument is that while it is strategically effective to rely on alliance or jump on the bandwagon, the ultimate goal is always to acquire an independent response capability as much as possible.

산후우울증의 심리사회적 위험요인 (Psychosocial Risk Factors of Postpartum Depression)

  • 박시성;한귀원
    • 정신신체의학
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    • 제7권1호
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    • pp.124-133
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    • 1999
  • 연구목적 : 산후우울증은 여러 요인이 관여하여 발생하며, 이들 위험요인에는 다양한 심리사회적 요인이 포함된다. 이전의 여러 연구결과들을 통해 산후우울증의 위험요인이 알려지고 있지만 아직까지 국내에서 산후우울증을 대상으로 위험요인을 연구한 경우는 별로 없다. 본 연구는 국내에서 산후우울증의 심리사회적 위험요인으로는 어떤 것이 있는지를 알아보기 위하여 시행되었다. 방법 : 일신기독병원을 방문한 출산 후 약 6~8주에 있는 산모 119명을 대상으로 하였다. 설문지를 이용하여 산후우울증의 위험요인에 대하여 조사하고 산후우울의 정도를 측정하였다. 설문지는 이전 연구들을 통해 알려진 위험요인들을 참고하고 산모들의 스트레스와 관계되는 요인들을 추가하여 작성하였다. 산후 우울증을 평가하기 위해 EPDS(Edinburgh postnatal depression scale)를 번안해서 사용하였고, 산후우울의 정도는 측정된 EPDS 접수에 따라 판단하였다. 결과 : 총 대상 산모 119명 중 EPDS에 의해 산후우울증으로 진단될 수 있는 고위험군은 16명으로, 13.45%의 빈도를 보였다. 고위험군에서는 과거 우울증상을 경험한 경우와 결혼생활에 대한 만족도가 낮은 경우가 저위험군에 비해 유의하게 많았다, 또 과거 우울증상을 경험하였던 군, 임신중 우울과 불안증상을 경험한 군, 임신 및 산욕기동안 스트레스 생활사를 경험하였다고 보고한 군, 결혼생활에 대한 만족도가 낮은 군, 그리고 나이가 많을수록 EPDS 접수가 유의하게 높았다. 반면, 산모의 교육수준, 종교, 직업의 유무, 임신과 출산에 따른 직업중단 희망임신 여부 분만방법 수유방법, 유아의 입원여부, 그리고 기대했던 유아의 성별 및 실제 유아의 성별은 우울증상에 영향을 미치지 않았다. 결론 : 이상의 결과로 볼 때 산후우울증은 산후에 비교적 높은 빈도로 발생 가능하며, 우울증의 과거력, 임신동안 우울과 불안증상의 경험, 스트레스 생활사, 결혼생활에 대한 낮은 만족도, 그리고 산모의 연령과 같은 요소들이 산후우울증의 위험요인이었다. 임신과 산욕기 동안 산모에 대하여 적절히 정신의학적으로 개입함으로서 조기에 산후우울증을 발견하고 치료할 수 있으며, 산후우울증으로 인하여 산모와 유아에게 미치는 다양한 손실을 예방할 수 있을 것으로 생각된다.

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상향류 인 결정화공정을 이용한 슬러지 발효 유출수로 부터의 영양소 회수 (Nutrient Recovery from Sludge Fermentation Effluent in Upflow Phosphate Crystallization Process)

  • 안영호
    • 대한환경공학회지
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    • 제28권8호
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    • pp.866-871
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    • 2006
  • 연속 회분식 방식의 실험실 규모 상향류 반응조를 사용하여 인 결정화공정을 이용한 영양물질 회수에 대한 연구를 수행하였다. 양이온 공급원으로서 산업폐기물인 폐석회와 마그네슘염을 이용하여 그 운전특성을 비교하였다. 이 연구는 고성능 발효조와 인 결정화 반응조로 구성된 새로운 통합 슬러지 처리 공정에 있어서 인 결정화공정의 성공적인 적용성 평가에 초점을 두고 있다. 발효조 유출수와 유사한 특성으로 제조된 합성폐수를 이용한 첫 번째 struvite 결정화 실험에서 반응은 $0.5{\sim}1$ hrs 사이의 반응시간에서 빠르게 진행되었는데, 그 동안 상당량(약 60% 이상)의 암모니아와 인이 제거되었다. 알칼리성 조건이라는 기질의 고유특성으로 인하여 암모니아 탈기 현상이 다소 발생하였으나 그 정도는 미미한 것(<5%)으로 나타났다. 또한 공기주입에 의한 이산화탄소 탈기조건을 추가적으로 제공하였을 때 struvite 형성속도의 향상은 일어나지 않았다. 실폐수로서 발효조 유출수를 사용한 두 번째 실험에서 stuvite 결정화를 위한 마그네슘염의 최적주입량은 struvite형성질량비와 유사한 0.86 g Mg $g^{-1}$ P이었다. 반면에 폐석회의 최적주입량은 0.3 g $L^{-1}$으로 다소 높게 나타났으며, 약 3시간의 반응시간 조건에서 $NH_4$-N과 $PO_4$-P의 제거효율은 각각 80%와 41%로 나타났다. 각 실험에서 침전물을 현미경으로 분석한 결과 마네슘염을 사용한 경우 프리즘과 같은 결정체가 관찰된 반면 폐석회를 사용한 경우는 비결정질의 결정체가 주로 관찰되었다. 하수처리용량 158,880 $m^3\;d^{-1}$의 실규모 처리시설의 경우를 대상으로 한 통합 슬러지처리시스템의 물질수지 분석결과 결정화 반응조 유출수로 부터의 반송되는 영양물질의 재순환 부하(각각 하수 1 $m^3$ 당 0.13 g N와 0.19 g P)는 매우 낮게 유지되는 것으로 나타났다. 그러므로 이미 산업폐기물 형태로 존재하는 폐석회를 본 연구에서와 같이 통합 슬러지 처리시스템의 영양물질 회수 공정에서 재이용하는 것은 높은 환경적 및 경제적 이익과 동시에 산업폐기물의 지속발전적 처리/처분이라는 다양한 장점을 가질 것이다.

암화학요법을 받는 유방암 환자의 불안, 절망감 및 가족지지와의 관계 (The Relationship of Anxiety, Hopelessness, and Family Suppoort of Breast Cancer Patients Undergoing Chemotherapy)

  • 박점희;이현주;김현미;류은경
    • 기본간호학회지
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    • 제4권1호
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    • pp.147-162
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    • 1997
  • This study was attempted to provide the basic data for nursing intervention to improve the psychosociological adaptation of patients receiving chemotherapy for breast cancer by examining relationship between anxiety and hopelessness that they are experiencing and family support, in order to help them successfully cope with various psychological problems. This study was carried out with 93 breast cancer patients who are receiving chemotherapy in the injection treatment room of K University Hospital located in the downtown of Taegu after having underwent mastectomy in the hospital between December 1995 and August 1996. This study used the systematized questionnaires which contain 7 questions about general characteristics, Spielberger's trait anxiety & state anxiety scale, the tool that WON(1987) modified the hopelessness scale which was developed by Beck et al.(1967) and the family support tool made by TAE(1985). By using the SPSS/PC program, this study obtained the real number and percentage for the general characteristics of the subjects, and mean and standard variation for the degrees of trait anxiety, state anxiety, hopelessness and family support. The correlation between each variables was identified on the basis of the Pearson Correlation, and the degrees of trait anxiety, state anxiety, hopelessness and family support in the general characteristics of the subjects were analyzed by using the t-test, ANOVA, and Duncan test. The results of this study were summarized as follows. In the general characteristics of the subjects, most of each group were 51 years old or more and the middle class in income, had educational background under elementary school, no job, Buddhism in religion and spouse, and were receiving chemotherapy using MTX and 5FU. It was shown that the degree of the subjects' trait anxiety is, on an average, 50. 29, state anxiety 49. 68, hopelessness 51. 46 and family support 34. 28. Both trait anxiety and hopelessness showed normal correlation ; the higher the degree of trait anxiety is, the higher the degree of hopelessness is, while trait anxiety and family support showed reverse correlation ; the higher the degree of trait anxiety, the lower the degree of family support that the subjects perceive is. State anxiety and hopelessness also showed normal correlation ; the higher the degree of state anxiety is, the higher the degree of hopelessness is. Family support and hopelessness showed reverse correlation ; the higher the degree of family support is, the lower the degree of hopelessness that the subjects perceive is. And family support and state anxiety showed reverse correlation but there was a statistically significant difference. The degree of trait anxiety in the general characteristics of the subjects showed a significant difference by age, job and religion, the degree of state anxiety a signigicant difference by job and religion, the degree of hopelessness a signigicant difference by age, educational background and existence or not of spouse. In conclusion, the breast cancer patients receiving chemotherapy perceive anxiety and hopelessness due to several causes such as diagnosis itself or side effects of chemotherapy, so that it is required not only to develop specific nursing interventions including family support to alleviate anxiety and hopelessness but also to apply such interventions to clinical practice.

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사회적 기술 부족과 충동성으로 인해 또래갈등이 심한 분교아동의 상담사례 (Counseling Case Study of a Child with Peer Confliction due to Lack of Social Skills and Impulsiveness)

  • 이인선
    • 초등상담연구
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    • 제5권1호
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    • pp.227-253
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    • 2006
  • It seems common for students living at a small county and islands to experience psychological conflicts and be unaccustomed in the peer society because they are not familiar with peer interaction and social skills. This is a case study of L (hereinafter called L) who was grown up in the sheltered school at a small county. L was psychologically disturbed because he couldn't get along well in the transferred school. It is the reason why he had lived in the sheltered school at a small county, so he had not enough exposure to interact with peer and social skills. Sometimes he was obstinate irrationally and when he had trouble with friends, he threw something out or went out of school and tricked juniors dangerously. The fact of disperse with families, parent's indifference, and hate of older brother made L to have ill feeling against family. He had low motivation and low self confident in learning because of short attention time and accumulated poor learning progress. In this study, he was evaluated at various area, such as, intelligent, affective, personal and inter-personal, before counselling. To evaluated the effect of the counselling, K-WISC-III, KPRC, sentence filling test, social adaptation ability test, etc, were administered right after the counselling was over and 8 weeks later. For specific information gathering and analysing, observation diary and deepen counselling were accomplished by homeroom teacher, his mother, and his peers. To correct his problematic behaviors, 13 counseling sessions were accomplished for 6 months and those counselling sessions were recorded and analysed definitely. Followings are the result of this case study. First, he was recovered from the anxiety of inter-personal interaction and he started to interact with peers. The result of sac scale score of KPRC profile was lower than before as much as average student after counseling and 8 weeks later. This reveals that the distress against interpersonal relation have settled. Especially, through the result of sentence filing test, he seemed to feel attachment to peers and be positive, active in the relation of peer. For instance, he was active in the open class lesson and interacted well with peers. It could be said that he overcame the psychological distress comparing with previous time. Second, he could apologize to his peer and juniors for his fault. His attitude were well shown in the letter from an old friend at the sheltered school, average KPRC profiling score comparing with previous counseling time, and remarkable decrease of attack scale score of teacher and peer. Third, his view toward family turn out positive. He recognized his situation that he lived apart from family and even worried about his parent's financial difficulty. Through solving the confliction with his older brother, he could acquire the feeling of family reunion. Fourth, his learning motivation and self-confidence were increased. He confirmed his future positively and he might be judged more attentive because his intelligence index was higher than before as much as average student. With the main goal of this study, verification for effectiveness of counseling. understanding and helping problematic students such as L who lives at a small county and island through investigation of their real situation and problems with the method of counseling and socio-cultural analysis is worthwhile. Identification of ideal relationship with peer is related with positive self-conception, harmonic social adaptation and development of child. It is time to investigate easy adaptive in classroom and well-organised program to acquire general social skills for sheltered school students at a small county and islands.

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소석회$(Ca(OH)_2)$와 탄산칼슘$(CaCO_3)$을 이용한 매립장 주변 중금속 오염 지하수 정화 (Remediation Process by using Lime and Calcium Carbonate for Heavy Metal Contaminated Groundwater Originated from Landfills)

  • 송나인;이예선;이민희
    • 자원환경지질
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    • 제38권3호
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    • pp.273-284
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    • 2005
  • 소석회$(Ca(OH)_2)$사 탄산칼슘$(CaCO_3)$을 응집제로 이용한 화학적 응집/침전법으로 지하수로부터 중금속을 제거하는 실내실험을 실시하였다. 비소(As), 카드뮴(Cd), 망간(Mn), 납(Pb), 아연(Zn)으로 오염시킨 인공오염수로부터 중금속을 제거하는 배치 실험 결과, 소석회를 이용한 경우, As과 Mn의 제거 효율은 $0.3\;wt.\%$소석회 첨가만으로 $90\%$ 이상을 나타내었으며, Cd와 Zn의 경우 $0.5\;wt.\%$ 첨가 시 약 $75-85\%$온의 제거 효율을 나타내었다. 탄산칼슘을 첨가한 경우 소석회 첨가에서 제거율이 비교적 낮았던 Pb의 제거율이 매우 높게 나타나 $0.1\;wt.\%$의 첨가만으로 거의 $100\%$를 제거할 수 있었으며, Cd의 제거율도 소석회보다 높게 나타나 $1.0\;wt.\%$ 첨가시 $93\%$이상의 제거율을 나타내었다. 그러나 As, U, Zn의 제거율은 약 30- $50\%$정도로 낮게 나타났다. 대형 칼럼 반응조를 이용한 중금속 제거 실험에서는, 응집제를 오염지하수에 첨가한 후 응집제의 확산 유도와 응집제와 응집할 입자간의 접촉을 위해 급속 교반하였으며, 교반으로 인해 성장된 플럭(floc)의 침전을 유도하여 상등액과 침전입자를 분리함으로써 오염지하수로부터 중금속을 제거하였다. 소석회를 첨가한 칼럼실험의 경우, 앞서의 배치실험 결과와 같이 As는 $1wt.\%$의 소석회 첨가에 의해서 침전 30분 이후에 $99\%$이상의 제거 효율을 나타내었다. Cd, Mn, Zn도 $80-85\%$의 제거효과를 나타내어 높은 제거 효율을 나타내었으나, Pb의 제거 효율은 배치 실험의 결과와 같이 낮아 약 $40\%$내외를 유지하였다. 소석회 침전 슬러지를 재활용하여 중금속 제거 실험을 반복 실시한 결과도 As, Mn, Cd에 대해서는 침전 슬러지 재활용 2회까지 평균 $90\%$이상의 높은 제거율을 나타내었으며, Zn에 대해서는 $70\%$내외의 제거율을 나타내었다. 탄산칼슘을 이용한 칼럼실험에서는 Cd와 Pb의 경우 제거 효율이 높아, 침전 후 30분 이내 에 $95\%$이상이 제거되었다. Zn은 $57\%$의 제거율을 나타내었으며, As와 Mn은 제거율이 낮아 약 $40\%$정도가 제거되었다. Fe와 Mn의 농도가 매우 높은 울산지역의 실제 매립장의 오염지하수를 대상으로 $1wt.\%$의 소석회를 이용한 칼럼실험 결과, 두 원소 모두 $96\%$이상의 제거율을 나타내어 소석회를 이용한 응집/침전법의 중금속 오염지하수 정화 효율이 매우 뛰어난 것으로 나타났다

정맥주사와 채혈시 학령전기 아동과 어머니가 인지하는 동통 (A study of pain perception related to IV therapy in hospitalized preschool children and their mothers)

  • 임지영
    • 대한간호학회지
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    • 제22권1호
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    • pp.49-67
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    • 1992
  • Most hospitalized children will experience physical pain as well as psychological distress. Preschool children's pain perception related to painful procedures can increase due to elevated anxiety and fear because they do not have understanding logical of their disease and hospitalization. In particular, they are distressed about needle - related procedures which are feared because they are seen to be a cause of bodily damage. This descriptive study attempted to identify pain perception levels in preschool children and their mothers. A self-reporting measurement and behavioral observation were used to collect the data. A total of 25 hospitalized preschool children and their mothers were investigated and data were collected about 60 painful procedures. Data collection was carried out by the researcher and two trained investigators from November first to December tenth. Three insruments were used to collect the data : Faces Pain Rating Scale(FPRS) developed by Beyer was used to measure the degree of preschool children's pain perception about painful procedures. The Visual Analogue Scale(VAS) devised by Huskisson was used to assess the degree of mothers' pain perception about their children's painful procedures. A Pain Behavioral Checklist based on the Procedure Behavior Check List by LeBaron and Zelter and modified by the researcher was used to observe behaviors of preschool children, their mothers, and nurses when the painful procedures took place. The data were analyzed by an SPSS program, and were tested using real numbers, percentages, Pearson correlation coefficient, t-test, and ANOVA. The results of this study are as follows : 1. Of all the painful procedures, the mean score for the FPRS for the preschool children's pain perception was 4.02 points, and the mean score for the VAS of mothers' pain perception was 10.92 points. 2. A Positive correlation which was statistically significant was found between the pain perception of preschool children and their mothers (r=.53, p<.01). that is, the higher the children's pain perception was, the higher their mothers' pain perception was. 3. The characteristics of the painful procedures related with children's pain perception as follows : The type of painful procedure was found to be statistically significant (F=23.44, p<.01), Among the three procedures Ⅳ starting was found to be perceived as the most painful procedures to the children. The greater the number of times that the procedure had been done, the higher the pain perception was (F=4.44, p<.01), and the longer the duration of the procedure, the higher the pain perception wa(r=.30, p<.05). Pain perception in the treatment room was higher than in the children's room(t=6.30, <.01), pain perception in the mother's presence was the higher than when the mother was not present (t=2.91, p<.01). 4. The characteristics of the painful procedures related with the mothers' pain perception as follows : The type of painful procedure was found to be statistically significant(F=6.01, p<.01). Among the three procedures Ⅳ sampling was found to be perceived as the most painful procedures to the mothers. The greater the number of times that the procedure had been done, the higher the pain perception was (F=5.95, p<.01), and the longer the duration of the procedure, the higher the pain perception was (r=.31, p<.05). Pain perception in the treatment room was higher than in the children's room (t=3.51, p<.01), but pain perception in the mother's presence showed statistically significant no difference. 5. Of all of the 19 children's behaviors during the painful procedures, the most frequent behaviors observed Were as follows in order of frequency “crying”, “screamirig”, “facial grimacing”, “physical resistance”, Of all of the nine methers' behaviors, the most frequent by observed in “console children”, “hold children”, “applaud children”, Of all of the 11 nurses' behaviors during the painful procedures, the mast frequent in order were “smiling”, “physical restraint”, “console children”, “praise children”. 6. A positive correlation between children's and mothers' pain perception and children's behaviors was found to be statistically significant (r=.65, p<.01, r=67, p<.01). Also the relationship between children's and mothers' pain percertion, and mothers' behavior was found to be statistically significant (r=.57, p<. 01, 4=.60, p<.01). The relationship between children's pain perception and nurses' behaviors was also found to be statistically significant (r=.46, p<.01), but there was difference between mothers' pain perception and nurses' behaviors.

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