• Journal of Chest Surgery
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• 제55권1호
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• pp.1-9
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• 2022

Lung cancer is a fatal disease, highlighting the importance of research on related topics, including surgery for lung cancer. However, systematic research analyzing surgery on a national scale is limited. This study aimed to investigate the research on lung cancer using nationwide data in South Korea and to analyze trends in lung cancer surgery, including its clinical implications. Published articles and data from the Korean National Health Insurance database were used. Although the incidence and mortality of lung cancer have been improving, it is predicted to be the most common and fatal type of cancer in South Korea in 2021. The number of surgical procedures for lung cancer is increasing, especially among women, those ≥76 years of age, residents of non-metropolitan cities, and middle-income patients. Lobectomy and sublobectomy, including segmentectomy, are increasingly common. However, the proportion of pneumonectomy relative to other procedures is not increasing. Surgery has shown a reasonable survival rate, especially after lobectomy, but survival remains poor in patients ≥76 years of age who undergo pneumonectomy. The frequency of lung cancer surgery is increasing concomitantly with various socioeconomic changes. Lobectomy has become increasingly common, and the clinical results of surgery are satisfactory. Further research on the changing composition of surgical candidates is required.

• 디지털융복합연구
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• 제16권9호
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• pp.207-217
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• 2018

본 연구는 임상간호사의 환자안전 간호활동 측정도구를 개발하여 도구의 타당도와 신뢰도를 검증하기 위해 수행되었다. 문헌고찰, 포커스그룹 인터뷰, 내용타당도 검증 및 사전조사를 통해 예비도구를 개발하고, 전국 종합병원급 이상의 병원을 대상으로 비례층화표본추출 방법으로 선정된 28개 병원의 간호사를 대상으로 자료를 수집하였다. 도구의 구성타당도는 탐색적 요인분석으로, 준거타당도는 환자안전문화 도구와 상관관계로 분석하였고, 내적일관도는 Cronbach's ${\alpha}$로 검증하였다. 개발된 도구는 최종 10영역 72문항으로 구성된 4점 총화평정척도였고, 탐색적 요인분석 결과 총 설명변량은 70.3%이었으며, 요인적재량은 .74이상이었다. 본 도구는 환자안전문화 측정도구와 유의한 상관관계(r=.51, p<.001)를 나타냈으며 Cronbach's ${\alpha}$는 .99였다. 결론적으로 임상간호사의 환자안전 간호활동을 측정하기 위해 개발된 본 도구는 타당도와 신뢰도가 검증되었고 실무현장에서 유용한 도구가 될 것이다.

• 융합보안논문지
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• 제3권2호
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• pp.85-97
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• 2003

지난 2003년 1월 25일 오후 국내 최상위 DNS(도메인 네임 시스템)서버가 다운되면서 유.무선 인터넷 서비스가 일제히 마비되는 사상 초유의 사태가 벌어지고 전국 곳곳에서 크고 작은 혼란과 피해를 빚었다. 원인은 여러 가지의 형태로 분석되었지만 가장 큰 이유는 보안 불감증에서 기인했다고 할 수 있다. 특히 소규모 네트워크에서 보안관리자는 거의 없고 정보보호를 위한 물리적인 장치가 전무한 상태였다. 대부분의 보안시스템이 경제성을 이유로 대규모 네트워크에 중점적으로 개발되고 있으며 실시간으로 네트워크의 보안상태를 점검해 주는 보안관제센터들도 IDC나 대규모 네트워크를 중점으로 서비스 되는 실정이다. 본 논문에서는 제기되어온 문제점을 해결하기 위하여 소규모 네트워크 전용 SnSA를 설계하여 경제적인 보안관제 서비스를 연구하였다. 첫 번째로 소규모 네트워크에서 보다 많은 정보를 수집하기 위해서 네트워크 침입탐지기능 N_SnSA와 호스트 침입탐지기능 H_SnSA를 구현하였고 두 번째로 경기대학교 통합보안관제센터와 같은 공익성을 가진 센터에서 저렴한 비용으로 연동시켜 기존의 취약성을 해결하는 방법을 연구하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권13호
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• pp.5493-5498
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• 2015

Due to the lack of nationwide population-based cancer registration, the total cancer prevalence in Iran is unknown. Our previous work in which we used a basic network scale-up (NSU) method, failed to provide plausible estimates of total cancer prevalence in Kerman. The aim of the present study was to estimate total and partial prevalence of cancer in southeastern Iran using an adapted version of the generalized network scale-up method. A survey was conducted in 2014 using multi-stage cluster sampling. A total of 1995 face-to-face gender-matched interviews were performed based on an adapted version of the NSU questionnaire. Interviewees were asked about their family cancer history. Total and partial prevalence were estimated using a generalized NSU estimator. The Monte Carlo method was adopted for the estimation of upper/lower bounds of the uncertainty range of point estimates. One-yr, 2-3 yr, and 4-5 yr prevalence (per 100,000 people) was respectively estimated at 78 (95%CI, 66, 90), 128 (95%CI, 118, 147), and 59 (95%CI, 49, 70) for women, and 48 (95%CI, 38, 58), 78 (95%CI, 66, 91), and 42 (95%CI, 32, 52) for men. The 5-yr prevalence of all cancers was estimated at 0.18 percent for men, and 0.27 percent for women. This study showed that the generalized familial network scale-up method is capable of estimating cancer prevalence, with acceptable precision.

• 디지털융복합연구
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• 제20권1호
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• pp.71-86
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• 2022

본 연구의 목적은 인공지능 기술 또는 서비스를 수용하는 사용자의 윤리성 인식을 측정하기 위한 척도 개발 및 타당화에 있다. 이를 위해 인공지능 윤리성 관련 문헌 분석을 통해 구성개념 및 속성을 확인하였다. 전국의 10대-70대 남녀 133명(개방형 설문:1차 문항), 273명(예비조사:2차 문항), 500명(본조사:최종 문항)을 대상으로 실시한 온라인 설문조사 결과를 확인적 요인분석에 의해 정제하여 최종적으로 인공지능기술 윤리성 척도를 개발하였다. 인공지능기술 윤리성 인식 척도는 총 4개 요인(투명성, 안전성, 공정성, 책임성) 16개 문항으로 개발하여 일반적인 인공지능기술 관련 윤리성 인식을 세부 요인별로 측정할 수 있도록 하였다. 개발된 척도를 활용하여 다양한 분야의 측정 변인들과의 관련성을 밝힐 수 있을 것이며, 인공지능기술 발전의 초기 단계에서 윤리성 인식을 높이기 위한 기초 데이터를 제공하는 데 중요한 역할을 할 것으로 기대한다.

• 대한교통학회지
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• 제22권5호
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• pp.61-73
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• 2004

복잡한 대규모의 도로망에서 방대한 정보를 분석하여 실시간으로 최적 경로를 탐색해야 하는 경로 안내 시스템에서는 탐색 효율이 필수적이다. 리를 위하여 많은 연구들이 탐색 대상이 되는 노드와 링크의 수를 줄이려고 노력해왔다. 이 논문에서는 일부 영역만이 탐색으로 함수의 최적값을 찾는 단계별 세분화 방법(Coarse Grid Method)의 원리를 도로망에 응용한ㄴ다. 처음에는 간선 도로망, 다음에는 주요 도로망, 그 다음에는 세부 도로망 등으로 그 대상을 단계적으로 세분화함으로써 동시에 수많은 노드들간의 경로를 찾는 기존 방법에서의 탐색시간을 단축한다. 이 시스템을 우리나라 전국 규모의 충분히 세분화된 실제 도로망에 적용하여 시스템의 효율성, 실용성과 실시간 운영 가능성을 경로의 탐색 시간, 경로의 적합성 등에서 입증한다.

• 한국실내디자인학회논문집
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• 제20권5호
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• pp.51-58
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• 2011

As it gets nearer to the modern society, social and cultural situations are changing and the spatial form of public space is changing into the complex structure where it is interlinked with each other diversely. In particular, as the development of large-scale complex spreads nationwide, the form of complex commercial space assuming the nature of malls appears prominently. In such a large-scale complex commercial space, the diverse visual elements make the environment difficult to be perceived. Like this, the attention in the commercial space where a variety of visual stimuli are in the presence, is important element, so the plan of VP(visual presentation) is needed for effectively selecting or inducing the space. Thus, in this study, human visual and perception process will be reviewed and a method to evaluate the attention will be proposed. Also, the attention of each stores in the complex commercial spaces will be evaluated to propose the indicators for resonable spatial panning in the future.

• 생태와환경
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• 제50권4호
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• pp.374-380
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• 2017

Pine wilt disease (PWD) is one of the hazardous pine tree diseases in whole world. In Korea, PWD has been spreading since it was first observed in Busan in 1988. Dispersion of PWD is mainly mediated by its vectors such as Japanese pine sawyer. In this study, we characterized environmental condition including meteorological factors, geographical factors, and land use factors influencing on the occurrence of PWD. The occurrence data of PWD were collected at 153 sites where were the initial occurrence sites of PWD in local government regions such as city, Gun, or Gu scale. We used Akaike Information Criterion (AIC) to evaluate the relative importance of environmental variables on the discrimination of occurrence or absence of PWD. The results showed that altitude, slope, and distance to road were the most influential factors on the occurrence of PWD, followed by distance to building. Finally, our study presented that human activities highly influenced on the long term dispersal of PWD.

• 한국조경학회지
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• 제32권2호
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• pp.25-35
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• 2004

The purpose of the study is to analyze the existing situation of the green buffer zone in the large scale industrial site and other major residential apartment areas. In this study, it is specifically intended that the planning guideline be upgraded to adopt future landuse trends and thus to suggest design criteria for management of the buffer zone. The framework of the analysis is to review the current landuse, noise reduction, ecological implications and landscape in general. Although the major function of a green buffer zone is considered to protect the residential area from various hazards of industrial, traffic, and visual environment, the situation is that most of the zones are maintained at a minimum level of services by local government. The study carried out intensively almost every type of case studied throughout the country, which implies that the management of the green buffer zone should be expanded physically enough to function for its original objectives. The study recommends that ecological management of the green buffer zone be emphasized and therefore the criteria for this purpose as well as noise issue should be developed prior to the landuse aspects. The study suggests specific guidelines for planning and design for the green buffer zone development. This study should be verified positively through the sustainable monitoring and requires nationwide and overall examination so that it may be applied to whole green spaces.

• 대한안전경영과학회지
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• 제26권2호
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• pp.55-64
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• 2024

As the distribution of vehicles and logistics increases due to the development of human civilization and the increase in population, various roads play an important role in domestic traffic and transportation. However, the recent emergence of large cities and new cities is causing traffic problems, and the increase in roads is inevitable for the smooth distribution of vehicles and logistics. In Korea, mountainous regions occupy 70% of the country, so tunnels are used to open roads. Without this, it is difficult to open the road. Currently, there are 3,720tunnels (as of December 31, 2023) installed on high-speed national highways, general national highways, and local roads nationwide, with a length of 2.499 and increasing every year. Accordingly, fire accidents in tunnels will also increase, and due to the nature of tunnel fire accidents, there is a high probability that they will escalate into large-scale disasters, resulting in casualties and property damage, as well as significant social losses due to the disruption of logistics transportation, etc. As the possibility of potential hazards is increasing, the purpose of this study is to build a safe and efficient tunnel system by optimizing maintenance and management for fire and disaster accidents in tunnels.