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      • KCI등재
      • KCI등재

        도시관광 재생사업이 지역주민의 공동체의식, 주민참여에 미치는 영향

        임경환 관광경영학회 2020 관광경영연구 Vol.99 No.-

        The purpose of this study is to investigate how urban tourism regeneration business policy affects community consciousness and residents' participation and to reveal important factors that induce residents' participation. For samples, 213 valid samples were performed from December 1, 2019 to December 29, 2019. The analysis results of this study were analyzed using the statistics package for SPSS for Window version 22.0. Multiple regression analyses were performed for hypothesis testing and the results of this study were as follows: First, housing policy and economic policy among urban tourism regeneration business policy have been shown to influence local social consciousness. Second, a sense of unity, a sense of accomplishment and a sense of membership all affected the participation of the residents. Third, it was analyzed that only housing policies among urban tourism regeneration projects affect all factors of residents' participation, and economic policies affect information-based participation, except for resident-led participation. The hypothesis test indicates that integration and implementation of housing policies and membership awareness are important factors that encourage residents to participate.

      • KCI등재

        난독화된 오픈소스 안드로이드 앱을 탐지하는 기법 구현

        임경환,김병철,조성제 한국정보과학회 2019 정보과학회 컴퓨팅의 실제 논문지 Vol.25 No.2

        With the widespread use of open-source software (OSS) in recent years, the number of violating OSS licenses has been increased. On the other hand, there have been increases in security threats and vulnerabilities found in representative OSS such as OpenSSL and WebView. Therefore, a lot of research has been conducted to detect various OSS modules. However, there has been little research on OSS detection considering the effect of code obfuscation. In this paper, we propose a technique for determining whether obfuscated Android apps are generated from specific open-source app(s) and verifying the proposed method through two experiments. The proposed technique detects open source Android apps based on de-obfuscation as well as Class Hierarchy Information (CHI) of executable code. In the first experiment, after constructing DB with the CHI-based feature information for non-obfuscated Android apps, our technique extracts the CHI-based feature from an obfuscated app, individually compares it with each feature of the DB, and identifies the obfuscated apps as OSS if two features match. In the second experiment, we restore an obfuscated app by de-obfuscation, extract CHI-based feature from the restored app and compare the feature with each feature of the DB. Experimental results show that while the CHI-based feature is robust against control flow and variable renaming obfuscations, it is not effective in class renaming obfuscation. 최근 오픈소스 소프트웨어(Open-Source Software, OSS)가 널리 사용됨에 따라, OSS 라이선스 위반 사례가 많이 발생하고 있다. 한편 OpenSSL, WebView 등 대표적인 OSS에서 보안 취약점이 발견되고 있으며 이로 인한 보안 위협도 증대되고 있다. 이에 OSS를 탐지하기 위한 연구가 진행되고 있으나, 코드 난독화(code obfuscation)를 고려한 연구는 거의 수행되지 않았다. 본 논문에서는 난독화된 안드로이드 앱이 OSS로부터 생성되었는지를 식별하는 기법을 제안하고 실험을 통해 제안 기법을 검증한다. 제안 기법은 실행코드의 클래스 계층구조 정보(Class Hierarchy Information: CHI) 기반으로 오픈소스 앱을 탐지한다. 먼저, 난독화되지 않은 안드로이드 앱들을 대상으로 CHI 기반 특징정보들을 DB로 구축한 후, 난독화된 앱으로부터 CHI 기반 특징정보를 추출하여 DB의 특징정보와 비교하여 일치하면 OSS로 탐지한다. 두 번째 실험에서는, 난독화된 앱을 역난독화(de-obfuscation)하여 복원한 후, 역난독화된 앱으로부터 CHI 기반 특징정보를 추출하여 DB의 특징정보와 비교하여 오픈 소스 여부를 탐지한다. 실험 결과, CHI 기반 특징정보가 제어흐름 난독화나 변수 명 난독화에는 강인하나 클래스 명 난독화에는 유효하지 않았다.

      • KCI등재후보

        패스트푸드점 이용고객의 이용실태와 서비스품질에 관한 연구

        임경환,김동기 대한관광경영학회 2003 觀光硏究 Vol.18 No.2

        This paper examined consumer behaviors and satisfaction with service quality in fast-food restaurant. Fast-food restaurants in Gyeongju, Pohang, Ulsan, Daegu were selected for the target subject. Four factors are extracted from the service attributes of fast-food restaurant. Among the four factors the same four factors; Tangible and Assurance, Empathy, Reliability, Responsiveness to the overall satisfaction and the intension of re-visitation. The customers were less satisfied than expected.

      • KCI등재

        기관지유발검사 시행과 해석: 전문가 의견서

        임경환,김민혜,양민석,송우정,정재우,이정민,서동인,신유섭,권재우,김세훈,김상헌,이병재,조상헌,대한천식알레르기학회 표준화위원회 대한 소아알레르기 호흡기학회 2018 Allergy Asthma & Respiratory Disease Vol.6 No.1

        Bronchial provocation tests are of value in the evaluation of airway hyperresponsiveness. Nonspecific bronchial challenge (methacholine, mannitol, exercise, etc.) is used when the symptoms, physical examination, and measurements of pulmonary function are unremarkable in the diagnosis of asthma, when a patient is suspected of having occupational asthma or exercise-induced bronchoconstriction (EIB), and when a screening test for asthma or EIB is required for some occupational groups in whom bronchospasm would pose an unacceptable hazard. Methacholine inhalation challenge is most widely used pharmacologic challenge and highly sensitive. For appropriate interpretation of the results of methacholine provocation, it is important to perform the test with the standardized protocol and to recognize that inhalation methods significantly influence the sensitivity of the procedure. Indirect challenges (e.g., mannitol and exercise) correlate with airway inflammation and are more specific but less sensitive for asthma. Indirect provocation tests are used to confirm asthma, to differentiate asthma from other airway diseases, and to evaluate EIB.

      • SCIEKCI등재
      • KCI등재

        관광자원 잠재력 평가지표 개발에 관한 연구: 경기도 수원시지역을 중심으로

        임경환,천민호 관광경영학회 2017 관광경영연구 Vol.79 No.-

        As the tourism industry is growing worldwide, the government is taking measures for regional development related to tourism environment, as well as making efforts for tourism development and inflow of tourists by utilizing local history, culture and nature. The government is doing so in order to revitalize tourism as a means of revitalizing the local economy. Prior to the study, the area for the potential evaluation of tourism resources was centered on Suwon City. The reason for the selection was because it was considered to be the best place to evaluate the potential of tourism resources as it is an area with a potential value of history and culture. Also, the area was considered to have been influenced by the government’s tourism support policies in the metropolitan area, with the recent “Visit Suwon Hwaseong Fortress Year 2016”, “Designation of Suwon Hwaseong Fortress as Special Tourist Zone” as examples. For this purpose, this study suggested implications based on upper, middle and lower attributes of tourism resource potential evaluation index. The upper attributes of the research findings were analyzed as spatial factor (0.4532), tourism resource factor (0.3427), political factor (0.1592) and human factor (0.0449) in terms of tourism resource potential, respectively. These results can be said to be the evaluation of tourism resources in accordance with the recent tourist trends and opinions of local residents. In Suwon City, potential is evaluated highly by spatial factors and tourism resource factors mainly. This result can be interpreted as a result of reflecting the characteristics of the metropolitan area with convenient accessibility, and also, it can be said that when selecting a tourist attraction considering the tourism resources of Suwon City, the resource value is considered importantly.

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