• Journal of KIISE:Computer Systems and Theory
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• v.26 no.9
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• pp.1083-1095
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• 1999

최근 처리기와 입출력 시스템의 속도 차이가 점점 커짐에 따라 버퍼 캐쉬의 효율적인 관리가 더욱 중요해지고 있다. 버퍼 캐쉬는 블록 교체 정책과 선반입 정책에 의해 관리되며, 각 정책은 버퍼 캐쉬에서 블록의 가치 즉 어떤 블록이 더 가까운 미래에 참조될 것인가를 결정해야 한다. 블록의 가치는 응용들의 블록 참조 패턴의 특성에 기반하며, 블록 참조 패턴의 특성에 대한 정확한 분석은 올바른 결정을 가능하게 하여 버퍼 캐쉬의 효율을 높일 수 있다. 본 논문은 각 응용들의 블록 참조 패턴에 대한 특성을 분석하고 이를 자동으로 발견하는 기법을 제안한다. 제안된 기법은 블록의 속성과 미래 참조 거리간의 관계를 이용해 블록 참조 패턴을 발견한다. 이 기법은 2 단계 파이프라인 방법을 이용하여 온라인으로 참조 패턴을 발견할 수 있으며, 참조 패턴의 변화가 발생하면 이를 인식할 수 있다. 본 논문에서는 8개의 실제 응용 트레이스를 이용해 블록 참조 패턴의 발견을 실험하였으며, 제안된 기법이 각 응용의 블록 참조 패턴을 정확히 발견함을 확인하였다. 그리고 발견된 참조 패턴 정보를 블록 교체 정책에 적용해 보았으며, 실험 결과 기존의 대표적인 블록 교체 정책인 LRU에 비해 최대 57%까지 디스크 입출력 횟수를 줄일 수 있었다.Abstract As the speed gap between processors and disks continues to increase, the role of the buffer cache located in main memory is becoming increasingly important. The buffer cache is managed by block replacement policies and prefetching policies and each policy should decide the value of block, that is which block will be accessed in the near future. The value of block is based on the characteristics of block reference patterns of applications, hence accurate characterization of block reference patterns may improve the performance of the buffer cache. In this paper, we study the characteristics of block reference behavior of applications and propose a scheme that automatically detects the block reference patterns. The detection is made by associating block attributes of a block with the forward distance of the block. With the periodic detection using a two-stage pipeline technique, the scheme can make on-line detection of block reference patterns and monitor the changes of block reference patterns. We measured the detection capability of the proposed scheme using 8 real workload traces and found that the scheme accurately detects the block reference patterns of applications. Also, we apply the detected block reference patterns into the block replacement policy and show that replacement policies appropriate for the detected block reference patterns decreases the number of DISK I/Os by up to 57%, compared with the traditional LRU policy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.12
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• pp.60-68
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• 2019

For effective building maintenance, the collection and management of various maintenance date such as work history information and material information is required. Despite the introduction of information management technologies and systems to reduce the amount of maintenance work of buildings, which have become larger and more complex, the maintenance information is not being utilized properly. As an alternative, research on the introduction and utilization of BIM is being conducted continuously. However, the BIM models generated at the design phase are not utilized in practice due to a lack of architectural maintenance information. This study proposed a COBie document prototype to support BIM-based smart maintenance tasks performed by building managers. In order to formalize various types of maintenance work procedures, a BIM-based maintenance process model is presented in two categories: inspection and maintenance. Among the BIM attribute data of the BIM model generated at the design phase, the parameters corresponding to the maintenance necessary information for each basic process are derived. Based on this, we proposed a COBie document prototype consisting of seven spreadsheets. The results of a case study confirmed that the KBIMS library-based BIM model created at the design phase without the maintenance information can be used at the maintenance phase.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.32-41
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• 2017

This study examined the arrangement attribute of each component based on the relationship among the components using space syntax at the entire complex level when analyzing the outdoor space of an apartment complex in Cheonan and as a preliminary study. The accessibility change in the access space to each space and to the facilities were examined based on a resident walking in the perspective that the outdoor spaces of the apartment complex are one spatial structure connected together. The space was divided into a total of 5 periods and the access space to the facilities and spaces located in outdoor space of the apartment complex were established as the unit space. In this study, a total of 6 analysis items were established: main complex access space, main building access space, shopping mall within complex, control office/center for senior citizens, children's playground, and resident sports facilities. In the analysis, the following conclusion was obtained. First, the accessibility to the main complex access space was high over almost all periods and the main building access space generally showed low accessibility. Second, the shopping mall showed a tendency that the closer the period, the more the accessibility is increased. Third, the control office/center for senior citizens, which can be considered as a common resident space and the children's playground out of the resident sports facilities, showed an exceptional tendency, the integration order was constantly high without a large change by the period and the control office/center for senior citizens showed the tendency for a high integration order, indicating that it is planned mainly in a location with good accessibility.

• Journal of Pharmacopuncture
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• v.6 no.1
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• pp.14-15
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• 2003

중의학은 서양의 의료 다원주의의 한 부분이 되었다. 특히 침과 같이 서양의 개념과는 분명히 다른 의료 기법에 있어서는 두드러진다. 그밖에 뜸, 안마, 기공, 중약 및 복합 처방들도 있다. 서양에서 전문직업인화는 보건의료 관련분야에서 중심적인 인력양성 방법이 되었다. 이는 대학이 기반을 다진 중세까지 거슬러 올라가는데, 19세기에는 법인들이 전문직업인 모임으로 바뀌어 가면서 개인적 환경을 변화시키고 직업의 체계를 개발하였다. 변호사, 교사, 사제, 의사가 그 예이다. 의료에 있어서 학교교육을 통해 수련된 의사들이 조산사나 안마사들을 지배하게 되었는데 이런 경향은 1950-60년대에 극에 달한다. 그러다가 이들의 지배는 대중매체, 환자, 다른 주변 의료 보조인력들에 의해 도전을 받는다. 이와 비슷한 양상을 이단적인 의료에서도 관찰할 수 있다. 전문직업인의 우세와 시점이 비슷한 생물의학의 우월적 지배는 많은 다양한 의료에 의해 도전을 받는다. 그러나 생물의학의 우월함의 약세가 시술자들의 전문직업인화 까지를 포함하지는 않았다. 실제로 침술과 같은 치료술들을 전문직업인인 의사나 의사가 아닌 시술자들이 함께 쓰고 있기 때문이다. 이는 직능간의 분쟁을 야기할 가능성이 높다. 이단적 개념을 기존 의료계로 통합하는 것이 전문직업인들인 의사들의 노력으로 이해되었다. 이 견해는 두 가지 문제를 내포하고 있는데, 첫째 의사들을 단일한 속성으로 보고 있다는 것인데, 실제로 현대의학을 배우고 가르치는 나라들 사이에도 매우 다양한 차이가 있음을 간과하고 있다. 둘째로 의료인이 아닌 시술자들도 다양한 분야로 통합되었는데, 통합은 어쩌면 하급의 전문인들의 노력의 결과로 설명되어야 하는 것이 더 알맞을 수 있다. 그러나 이들도 전문직업인의 조직구조를 가져야 만 하고, 그렇지 않으면 파편으로 남을 것이다. 전문직업인주의는 언제나 과학과 연계하고 있는데, 독일 정부와 직업인 조직은 의료과학 집단에게 이단적 시술들의 임상효과를 검증하게 하였다. 이것은 이단 의료계에 우호적인 단체나 적대적인 단체 모두에게 적용되었다. 매우 강한 힘을 가진 냉소적인 조직 가운데 하나는 National Committee of SHI-Physicians and Sickness Funds(Bundesausschuss der Arzte und Krankenkassen).2 인데, 2001년에, 이 단체에서 출판한 자료에는 침의 효용성은 침을 시술하는 사람에 달린 것 일뿐 시술자의 수련이나 침 시술의 배경 개념에 달려있는 것이 아니다. 그러므로 침은 무작위 표본추출 대조군 실험을 통해 효과를 검증받지 못한 다른 치료법들의 범주에 머물러 있다.(cf. Bundesausschuss 2001: 8). 1990년대, 무작위 표본추출 대조군 실험은 생물의학이 아닌 의료의 효과를 검증하는데 알맞지 않고 비윤리적이라고 강한 비판을 받았다. 한편 1995년에 WHO는 침의 유효성 평가를 위해 이 실험기법을 추천하며, 이어 2001년에, the International Council of Medical Acupuncture and Related Techniques(ICMART)는 침연구와 시술을 위한 헌장(Acupuncture Charter Berlin an Evidence Based Medicine (EBM)3 for acupuncture)을 채택 공표한다. 독일 보험 회사들도 침의 효과와 효율성을 검증하기 위해 대규모 실험을 시작했다. 100,000 명이 넘는 환자들이 무작위 표본추출 대조군 실험을 통해 평가되고 있는데 이 실험은 병원이나 일차의료기관의 외래에서 진행되고 있다. 영국에서는 이 분야의 유력한 Edzard Ernst가 위의 개념과 비슷한 구도를 설정 공표하는데 보완의학 분야의 많은 다른 전문가들의 견해를 무릎 쓰고, 그는 증거기반 의학에 대한 그의 신념을 표방한다. "무작위 표본추출 대조군 실험이 보환의학 분야의 시술을 검증하기 위한 알맞은 방법이 아니라고 끝없이 주장하지만 우리는 거의 모든 치료법을 포괄하는 분야에 이들 실험을 발견하였으니, 이는 보완의학도 엄정한 방법으로 검증할 수 있다는 것을 보여준다고 할 수 있다."(Ernst et al. 2001: xiii). 적어도 독일에서 진행중인 효과 검증 연구가 향후 아시아 의학의 기반 마련에 중요한 역할을 하게 될 것이다. 영국에서는 이에 대한 정치적 수렴이 전문 직업인화에 달려 있을 것이다. 여기에서 나는 아시아에서 유래한 의료의 서양에서 어떻게 사회학적 관찰의 대상으로 분류되고 정의되는지 소개하고자 한다.

• Journal of the Korean Association of Geographic Information Studies
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• v.3 no.1
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• pp.69-77
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• 2000

In retrieving and analyzing digital map information using mouse or key strokes, it needs several times of repeated mouse operation for designating the range of study area. In this study, we proposed a voice activated map information retrieval system for eliminating such repetitions and we realized the system on the personal computer. The system was constructed in two ways - traditional OLE(object linking embedding) method and MFC(Microsoft fundamental class) method in controlling of window display for practical use. In the system performance evaluation, the retrieval data for digital map were consisted of 68 words uttered by 3 male persons which include attribute words and control words for Susung-gu area of Taegu city in a 1:5,000 map. As the results, we obtained the average 98.02% of recognition rate through on-line tests in the office environment and the operating speed of 5.39 seconds by OLE, 10.38 seconds by MFC. These results showed the possibility for practical use of information retrieval system using speech recognition in digital map.

• Journal of the Korean Association of Geographic Information Studies
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• v.13 no.3
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• pp.74-90
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• 2010

The objectives of this paper are to introduce the GIS based resource circulation information, and to identify additional(or potential) industrial symbiosis based on existing industrial symbiosis and linkage-pair of industry by material. The resource circulation information contains information of the reuse of materials, water, and energy for all manufacturing companies in Ulsan Metropolitan City. The information can further be classified into the three steps -- input information(raw materials), flow information (products), and output information (by-products). The survey data from 3,768 industries and institutions in Ulsan Metropolitan area were collected and built into the GIS to analyze the mechanism of the industrial symbiosis. The results of this study strongly suggest that there are some additional industrial symbioses using by-products(materials, steam, waste water) and further efforts should be given to make them more effective. We expect that the methodology of building the resource circulation information of this study can be helpful to other local governments that try to build similar system.

• Cartoon and Animation Studies
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• s.43
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• pp.123-150
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• 2016

There has been discussed very little about animation authorship studies, especially the themes of authors and their original animation texts since 1990s. This study is to explore the academic discourse of animation authorship studies understanding the media aesthetics of animation and the scholarly approach of animation studies about authorship. This article examines 55 articles via meta analysis about animation authorship studies drawn from the 1,516 articles on the general animation studies. The results were as follows. First, the domestic animation studies on the authorship were made about animators of Japan, US, and european countries. Second, It was dominant that scholarly interest on the screen direction and visual expression of animation texts. This shows the authorship approaches were mainly about visual aspects of animations. The domestic animation authorship studies did not trace the authorship issues on author's world view and visual style revealed in the corpus of texts. Instead, they discussed authorship issues on the characteristics of individual animation text. It has been evident that animation studies were not enthusiastic about building the independent theory on animation. Therefore, animation studies have tried theorizing the animation issues borrowing the literature and film theories. This study can contribute to increase phase of animation studies by drawing the intensive discussion of animation authors and their authorship.

• Journal of Science Education
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• v.32 no.1
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• pp.47-60
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• 2008

The Ministry of Science and Technology has been planning various events and carrying them out as the effort for promotion and popularization of science. The ministry has made followings: i)Science culture year, 2004 ii) Physics year, 2006 iii)Chemistry year, 2007 iv)Biology year, 2008. Especially, in 2006 the ministry held various exhibitions and contests about chemistry. The science play "Oxygen" had been presented in the whole country, 2006. From 2006 to 2007 the moving science museum had been displayed many times in the whole country. The national broadcast media KBS made a special program and televised several times to commemorate the year of chemistry. Like that in 2006 the chemistry approached to general people. In these surroundings, we wondered how chemistry was expressed in daily newspaper and how the general public accepted chemistry in the year of chemistry, 2006. So we selected four daily newspaper and researched descriptions about chemistry then analyzed the image of chemistry in that descriptions. When we research, we first selected 5 words of high frequency. On the internet research engine we used these 5 words and searched descriptions. We read and sorted descriptions which were more connected to chemistry. Finally we analyzed the images of descriptions(affirmative or negative) and character. The chemistry's image on newspaper descriptions influences people greatly. Because that is the easiest channel.

• Journal of Hospice and Palliative Care
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• v.19 no.4
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• pp.322-330
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• 2016

Purpose: This study investigated long-term care hospital nurses' knowledge and practice of pain management and their attitudes towards the job with an ultimate aim to provide fundamental information for development of a pain education program. Methods: A cross-sectional survey was carried out with 120 nurses from four long-term care hospitals. Nurses' knowledge of and attitudes towards pain management was measured using a tool developed by Watt-Watson. To examine their pain management practice, an instrument was developed based on the pain management guidelines used by the long-term care settings. Results: For pain management knowledge, the participants gave an average of 26.2 (${\pm}13.10$) correct answers out of 40 questions. The most frequently missed question was one about subjectivity of pain, "Patients' physiological and behavioral reactions to pain hint at the presence and intensity of pain" (89.2%), and 56.7% of the nurses believed that increasing tolerance for a narcotic analgesic means addiction. Regarding attitudes towards and practice of pain management, 80.2% of the nurses used placebos to patients who complain about pain often. Conclusion: This study revealed poor level of pain management knowledge of and attitude among long-term care hospital nurses. This might negatively affect their pain management practice. From the educational perspective, nurses should be provided with education on pain management education with emphasis on the nature of pain and misuse of placebo drugs.

• Journal of Korean Society of Transportation
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• v.23 no.3 s.81
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• pp.7-19
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• 2005

Mode choice Analysis is essential analysis stage in transportation demand forecasting process. Therefore, methods for calibration and forecasting of mode choice model in aspect of practical view need to be discussed in depth. Since 1980s, choice models, especially Logit model, are spread widely and rapidly over academic area, research institutes and consulting firms in Korea like other developed countries in the world. However, the process of calibration and parameter estimation for practical application was not clearly explained in previous papers and reports. This study tried to explain clearly the calibration process of mode choice step by step and suggested a forecasting mode choice model that can be applicable in real policy analysis by using household survey data of Pusan metropolitan are. The study also suggested a way of estimating attributes which was not observed during the household survey commonly such as travel time and cost of unchosen alternative modes. The study summarized the statistical results of model specification for four different Logit models as a process to upgrade model capability of explanation for real traveler's choice behaviors. By using the analysis results, it also calculated the value of travel time and compared them with the values of other previous studies to test reliability of the estimated model.