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아파트 공동현관 출입 통제를 위한 자동 얼굴 등록 및 갱신 기반 얼굴인식 (Face Recognition Using Automatic Face Enrollment and Update for Access Control in Apartment Building Entrance)

  • 이승호
    • 한국정보통신학회논문지
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    • 제25권9호
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    • pp.1152-1157
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    • 2021
  • 본 논문에서는 아파트 공동현관의 출입통제에 적합한 얼굴인식 방법을 제안한다. 제안 방법은 기존의 얼굴인식 방식과는 다르게 별도의 수동 얼굴 등록 과정을 거치지 않는다. 건물에 있는 인물(예 : 거주자)이 공동현관문을 통해 외출하면 외출 시점에 촬영된 영상에서 자동 추출된 얼굴데이터(얼굴영상 및 특징)를 거주자 데이터베이스에 등록한다. 외출한 인물이 귀가하여 다시 공동현관문을 통해 출입하고자 하면 출입 시점에 촬영된 영상에서 추출된 얼굴데이터를 거주자 데이터베이스에 등록된 얼굴데이터와 대조하여 동일 인물이 식별되는 경우에만 공동현관문을 개방하여 출입을 허용한다. 동일 인물로 매칭된 얼굴데이터는 거주자 데이터베이스에서 바로 삭제되며, 외출할 때마다 새롭게 추출된 최신 얼굴데이터로 등록 갱신된다. 따라서 항상 최신 얼굴 데이터에 기반하여 얼굴 대조가 이루어져 동일인물을 식별하기에 유리하다. 제안 방법에 대해 구현의 용이함을 검증하기 위해 PC 2대와 포털에서 제공하는 클라우드를 활용하여 파이썬 기반의 얼굴인식 기능을 구현하였다. 또한 제안방법의 보안을 강화하기 위한 아이디어를 제시하였다.

상악 전치의 치열 형태에 따른 스캔 반복 측정 안정성 평가: in vitro 연구 (Evaluation of repeated measurement stability of dentition type of maxillary anterior tooth: an in vitro study)

  • 박동인;손호정;김웅철;김지환
    • 대한치과기공학회지
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    • 제41권3호
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    • pp.211-217
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    • 2019
  • Purpose: The purpose of this study is to evaluate the repeated measurement stability of scans related to dentition type. Methods: A normal model and the crowding and diastema models are also duplicated using duplicating silicon. After that, a plaster model is made using a plaster-type plaster on the duplicate mold, and each model is scanned 5 times by using an extraoral scanner. The gingival part and molar part were deleted from the 3D STL file data obtained through scanning. Using the 3D stl file obtained in this way, data is nested between model groups. Thereafter, RMS values obtained were compared and evaluated. The normality test of the data was performed for the statistical application of repeated measurements with dentition type, and the normality was satisfied. Therefore, the one-way ANOVA test, which is a parametric statistical method, was applied, and post-tests were processed by the Scheffe method. Results: The average size of each RMS in the Normal, Diastema, and Crowding groups was Normal> Crowding> Diastema. However, the standard deviation was in the order of Crowding> Normal> Diastema. The average value of each data is as follows. Diastema model was the smallest ($5.51{\pm}0.55{\mu}m$), followed by the crowding model ($12.30{\pm}2.50{\mu}m$). The normal model showed the maximum error ($13.23{\pm}1.06{\mu}m$). Conclusion: There was a statistically significant difference in the repeatability of the scanning measurements according to the dentition type. Therefore, you should be more careful when scanning the normal intense or crowded dentition than scanning the interdental lining. However, this error value was within the range of applicable errors for all clinical cases.

사립대학 행정정보 데이터세트 운영 개선 방안 (A Study on the Improvement of Administrative Information Data Set Operation of Private Universities)

  • 김현정;배성중
    • 기록학연구
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    • 제74호
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    • pp.187-222
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    • 2022
  • 본 연구의 목적은 사립대학의 행정정보 데이터세트 운영 현황을 분석하고 개선방안을 제시하는 것이다. 이를 위해 사립대학 178개교의 총 820개 시스템에 대해 시스템의 기능, 개발 유형, 데이터의 생성·정정·삭제 시기 등의 정량적인 분석을 실시하였다. 분석 결과, 통상 1개이상의 행정정보시스템을 보유하고 학사관리시스템을 공통적으로 사용하고 있으며 대학의 인프라를 통해 시스템을 자체적으로 개발한 사례가 많고 데이터를 수시로 생성하고 정정하며 업무담당자에 의해 데이터가 삭제되고 있으나 데이터의 삭제나 정정에 대한 규정은 명확하지 않다는 문제점이 도출되었다. 이러한 문제점들을 해결하기 위한 개선 방안으로 범정부 EA포털을 현행화하여 사립대학의 행정정보시스템에 대한 보유 현황을 제대로 파악하고, 데이터의 정정이 이루어지지 않는 시스템을 중심으로 기록관리하며 데이터의 임의 삭제가 이루어지지 않도록 내부 규정의 개정과 교육을 실시할 것 등을 제안하였다.

임상간호사의 업무수행 평정도구개발 (Development of a Task Performance Evaluation Instrument for Clinical Nurses)

  • 백현옥;한상숙;이상철
    • 대한간호학회지
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    • 제35권1호
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    • pp.95-103
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    • 2005
  • Purpose: The purpose of this study was to develop an instrument of task performance evaluation for clinical nurses, thus testing the validity and the reliability of the scale. Method: Data was collected from 84 Head Nurses and 255 General Nurses. A conceptual framework, composed of 4 factors of meaning in task performance evaluation, was identified through review of the relevant literature. A total of 78 items were developed and were used on a five-point likert scale. Through factor analysis, items whose factor loading was below 0.50 were deleted, thus 35 items remained. To test the validity and reliability of the instrument, the SPSS 11.0 windows program was used. Result: The results of the factor analysis indicated that 4 factors were classified and the cumulative percent of variance was 67.54%. The results of the reliability test indicated that Cronbach's coefficient of the total 35 items was over 0.9176. The results of the factor analysis indicated that factor loadings of all items was over 0.50. Conclusively, the validity and the reliability of the scale were proven. Conclusion: This study was identified as a tool with a high degree of reliability and validity.

실업계 고등학교의 통합교과 활용을 위한 컴퓨터 교육과정에 관한 연구 (A Study on the Computer Education Curriculums for the Application of Integrated Instruction in Industrial High School)

  • 김창수;김봉제;권오현
    • 수산해양교육연구
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    • 제13권1호
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    • pp.19-36
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    • 2001
  • The Government revised the sixth education curriculum plan because of rapid growth of information and communication technology, variance of computer applicable fields and curriculum plan related intelligence information. In according to this principle, the seventh curriculum plan remodeled not only knowledge cultivation as cultured person but also new curriculum correspond to special character of industrial high schools. The revised main contents are organized practicable subjects considering actual educational environments, deleted duplicated subjects and also added practicable another contents of multimedia and telecommunication fields. In this paper, we study curriculum for integrated computer education of industrial high schools according to the seventh education plan. For this research, it is searched opening classes and completion models of special subjects related computer fields of industrial high schools in Busan, we propose completion model for each school year and new curriculum of industrial high schools. We also recommend another approach methods for training and election of teachers. Therefore, this research can apply to the basis research data for the future curriculum model related computer science of industrial high schools.

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금융회사 서버 Privilege 계정 운영방식 결정 모델 (Decision Making Model for Selecting Financial Company Server Privilege Account Operations)

  • 이석원;이경호
    • 정보보호학회논문지
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    • 제25권6호
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    • pp.1607-1620
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    • 2015
  • 서버 Privilege 계정은 법규에 따라 운영 되어야 한다. 그러나 농협은 서버 Privilege 계정 운영에 대한 법규 미준수와 운영 미흡으로 서버의 모든 데이터가 삭제되는 농협 전산망 해킹 사건이 발생하였다. 본 연구에서는 금융회사의 서버 Privilege 계정 운영방식을 결정하기 위한 모델을 제시하기 위해 금융회사의 Privilege 계정 운영 현황을 조사하여 문제점을 도출하고, 개선방안을 제시한다. 또한, Privilege 계정 운영현황 조사를 통해 선정된 평가요인은 AHP(Analytic Hierarchy Process)를 사용하여 의사결정 모델과 공식을 제시하고 검증한다.

보건계열 대학생을 위한 도덕지능 도구의 타당성 연구 (The validation of moral intelligence checklist for college students majoring in health)

  • 최은숙;안정선;이경열
    • 한국응급구조학회지
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    • 제21권3호
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    • pp.49-58
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    • 2017
  • Purpose: The purpose of this study was to validate the Moral Intelligence Checklist(MIC) of Borba (2001) modified by Kim et al. (2010) for college students majoring in health. Methods: The MIC survey was performed with 348 college students in Gongju, Chungnam. Initial MIC modified by Kim et al. (2010) consists of 7 factors (empathy, self-control, conscience, kindness, fairness, respect and tolerance) and 42 items. Data were analyzed using confirmatory factor analysis. Results: We finally analyzed with 37 items, because 5 items with estimates level below 0.5 were deleted. The Cronbach's ${\alpha}$ of 7 factors were ranged from .780 to .851. Finally, the model fit of GFI(.805), CFI(.864), RMSEA(.033) was satisfied with confirmatory factor analysis using structural equation model. Conclusion: This MIC model is suggested to be used in development of moral intelligence educational programs.

환자 대장 CT 프로파일을 이용한 전자적 장세척 방법 (An Electronic Colon Cleansing Method using a Patient Colon CT Profile)

  • 김한별;김동성
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제35권8호
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    • pp.493-500
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    • 2008
  • 가상 대장 내시경을 위해서 환자 대장 CT 프로파일을 이용한 전자적 장세척 방법을 제안한다. 제안된 방법은 관강 영역을 cubic seeded region growing(SRG) 방법을 이용하여 추출하고, 이에 인접한 tagged material(TM)을 제거한다. TM의 경계에서 Air-TM의 partial volume(PV) 효과로 발생한 찌꺼기를 제거하고, TM-soft tissue(ST)의 PVE에 의해서 제거된 ST는 환자 CT 프로파일을 이용해서 복원한다. 제안된 방법을 16명의 가상 내시경 환자 CT 데이타에 적용해서 임상의의 주관적인 평가와 computer-aided diagnosis(CAD)의 정량적 평가에서 매우 고무적인 결과를 획득했다.

4-6세 정상발달아동 및 성인의 종성파열음 지각력 비교 (The final stop consonant perception in typically developing children aged 4 to 6 years and adults)

  • 변경은;하승희
    • 말소리와 음성과학
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    • 제7권1호
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    • pp.57-65
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    • 2015
  • This study aimed to identify the development pattern of final stop consonant perception using the gating task. Sixty-four subjects participated in the study: 16 children aged 4 years, 16 children aged 5 years, 17 children aged 6 years, and 15 adults. One-syllable words with consonant-vowel-consonant(CVC) structure, mokㄱ-motㄱ and papㄱ-patㄱ were used as stimuli in order to remove the redundancy of acoustic cues in stimulus words, 40ms-length (-40ms) and 60ms-length (-60ms) from the entire duration of the final consonant were deleted. Three conditions (the whole word segment, -40ms, -60ms) were used for this speech perception experiment. 48 tokens (4 stimuli ${\times}3$ conditions ${\times}4$ trials) in total were provided for participants. The results indicated that 5 and 6 year olds showed final consonant perception similar to adults in stimuli, papㄱ-patㄱ and only the 6-year-old children showed perception similar to adults in stimuli, 'mokㄱ-motㄱ. The results suggested that younger typically developing children require more acoustic information to accurately perceive final consonants than older children and adults. Final consonant perception ability may become adult-like around 6 years old. The study provides fundamental data on the development pattern of speech perception in normal developing children, which can be used to compare to those of children with communication disorders.

대학생의 기본심리욕구 및 스마트폰 중독과 대학생활적응과의 관계 (Relationship among Basic Psychological Needs, Smartphone Addiction and Adaptation to School Life in University Students)

  • 권명순;이보영
    • 한국보건간호학회지
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    • 제31권3호
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    • pp.540-553
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    • 2017
  • Purpose: This study was conducted to evaluate the relationship among university students' basic psychological needs, smartphone addiction and degree of adaptation to their university life, as well as to investigate the factors affecting their adaptation to university life. Methods: This study was conducted from May through July in 2017 for 235 university freshmen. Data were analyzed by frequency, t-test, ANOVA, and stepwise multiple regression. Results: The study showed that the group living in the dormitory or other places rather than living with family and satisfying in family life [ED highlight - please clarify this, I cannot infer your intended meaning; however, this text can likely be deleted.] adapted easily to university life. Moreover, adaptation to university life was negatively correlated with smartphone addiction, but positively correlated with basic psychological needs. Consequently, these results confirmed that residence type, satisfaction with family life, smartphone addiction and basic psychological needs were the factors having the greatest influence on university life. Conclusion: Based on the results of this study, it is necessary to lead students to participate in programs that can meet basic psychological needs or prevent smartphone addiction to help university freshmen adapt to university life.