• 제목/요약/키워드: consistency levels

검색결과 199건 처리시간 0.025초

인터넷 사용자 경험 수준 측정을 위한 질문지 개발과 평가 (Development and Evaluation of an Internet Literacy Questionnaire(ILQ))

  • 김인수;김기우;김경민;명노해
    • 대한산업공학회지
    • /
    • 제28권4호
    • /
    • pp.397-406
    • /
    • 2002
  • A study was conducted to develop Internet Literacy Questionnaire(ILQ) to investigate the levels of user's knowledge on Internet literacy. ILQ was found to be reliable (showed an internal consistency) with Cronbach's alpha of 0.93(p-value<0.001) and valid with test-retest correlation of 0.90 (p-value<0.001). ILQ, composed of 21 questions, was developed to test four areas of user's Internet literacy: general experience on Internet, advanced experience on Internet, knowledge on Internet program languages, and Internet application software programs. These four factors represented 69.2% of the knowledge of all areas of Internet literacy. As a result, ILQ could be used to differentiate the levels of user's Internet knowledge as beginners, intermediates, and experts before any Internet application programs are to be developed.

신뢰성 이론에 의한 하중 및 저항계수 설계 (Reliability-Based Load and Resistance Factor Design)

  • 손승요;이종헌
    • 대한토목학회논문집
    • /
    • 제7권4호
    • /
    • pp.1-12
    • /
    • 1987
  • LRFD 설계형식의 개별안전계수를 확률이론에 의하여 구할 때 주로 AFOSM 방법이 이용되어 왔다. 그러나 이 방법에 의해 구한 하중 및 저항계수를 사용하면 결과적인 신뢰성지수는 목표 신뢰성지수와 다를 수 있다. 최근 Ayyub 등이 제안한 Reliability-Conditioned(RC) 방법은 목표 신뢰성지수에 부합하지만 계산의 신속성 및 일관적 체계를 유지할 수 없다. 본 연구에서 제안한 RC/AFOSM 조합방법을 이용하면 계산의 체계가 일관적이고, 다양한 설계조건에 대하여 거의 일정한 개별안전계수를 결정할 수 있으며 이로부터 결과되는 신뢰성지수도 목표 신뢰성지수에 매우 근접하다.

  • PDF

Review of the regulatory periodic inspection system from the viewpoint of defense-in-depth in nuclear safety

  • Lim, Jihan;Kim, Hyungjin;Park, Younwon
    • Nuclear Engineering and Technology
    • /
    • 제50권7호
    • /
    • pp.997-1005
    • /
    • 2018
  • The regulatory periodic safety inspection system is one of the most important methods for confirming the safety of nuclear power plants and the defense in depth in nuclear safety is the most important basic means for accident prevention and mitigation. Recently, a new regulatory technology based on risk-informed and safety performance has been developed and used in advanced countries. However, since the domestic periodic inspection system is being used in the same way over 30 years, it is necessary to know how the inspection contributes to the safety confirmation of the nuclear power plants. In this study, the domestic periodic inspection system currently in use was analyzed from the perspective of defense in depth in nuclear safety. In addition, the analysis results were compared to the U.S. NRC's safety inspection system to obtain consistency and lessons in this study. As a result of analysis, the NRC's safety inspections were distributed almost evenly at the all levels of defense in depth, while in the case of domestic inspection, they were heavily focused on the level 1 of defense in depth. Therefore, it appeared urgent to improve the inspection system to strengthen the other levels of defense in depth in nuclear safety.

Mediated Public Diplomacy and the Contest Over International Agenda-Building in the Gulf Diplomatic Crisis

  • Albishri, Osama;Lan, Xiaomeng;Kiousis, Spiro
    • Journal of Public Diplomacy
    • /
    • 제1권1호
    • /
    • pp.57-79
    • /
    • 2021
  • Drawing on the theories of mediated public diplomacy, intermedia agenda-building, and homophily, this study aims to compare the effectiveness of the public diplomacy efforts made by the Saudi and Qatari governments during the Gulf diplomatic crisis. The study examines the respective international agenda-building influence of the state-sponsored media from the two competing Gulf states on the regional and international media's coverage of the crisis. Results show that, compared to Saudisponsored Al Arabiya, Qatari-sponsored Al Jazeera was more effective in shaping the agendas of the regional and international media. Whereas Al Arabiya has a weak first-level agenda-building influence and a moderate-to-strong influence at the second and the third levels, Al Jazeera demonstrates a strong agenda-building influence on the foreign media outlets at all of the three levels. We also analyze the impact of political proximity and the language of the media content (English or Arabic) on the agenda-building relationships. Still, the results suggest that, compared to Al Arabiya, Al Jazeera was more successful in shaping the agendas of the regional and international news media-no matter where they are based in the allied or the opposing countries. Also, we observe a higher level of consistency between Arabic- and English-language content in Al Jazeera.

Evaluating Psychological Experiences of Saudi Students in Distance-Learning

  • Almaleki, Deyab A.
    • International Journal of Computer Science & Network Security
    • /
    • 제21권7호
    • /
    • pp.173-181
    • /
    • 2021
  • The Ministry of Education in Saudi Arabia encourages Saudi students to continue their education at Saudi universities or abroad. Currently, an estimated 1,282,140 Saudi students are studying at Saudi universities. The extent of the research so far has not focused on Saudi student experiences, but it has shown that even a single negative event can dramatically reduce the chances of a student completing a degree. Thus, more research is necessary to identify and describe the context and obstacles (environmental and psychological) that Saudi students face. The evaluation was multifaceted to capture not only performance outcomes, but also other factors that have been suggested by research as influential to students' ability, such as the environmental, cultural, and psychological risks for graduation that Saudi students self-report. A single group pretest (survey) design was used in this study. Findings suggest depression stress and college stress predict stress levels, while subjective happiness predicts levels of scientific participations of the sample. Moreover, depression stress shows more consistency with hours spent on the internet for study purposes. These results should be considered in study support programs both institutionally and geopolitically by universities and governments.

Designing Coherent User Interfaces of N-Screen Services Reflecting Users' Task Knowledge

  • Park, Hwan-Su;Lee, Dong-Seok
    • 대한인간공학회지
    • /
    • 제31권1호
    • /
    • pp.41-48
    • /
    • 2012
  • Objective: Companies want to expand their business by providing their services at other devices and new services based upon existing services. Therefore, they look for building brand identity by providing same experience throughout devices and services. Background: Many services are available to use at multiple devices including mobile phones, tablet, personal computers, and televisions, thanks to proliferation of n-screen and cloud technology. Method: It was discussed that consistency, which emphasizes the regularity and has been one of essential aspects of user interface design, seems not effective to be applied to n-screen services, owing to different screen size, input and output peripherals, usage environment and users' attitude. Results: A new definition of same experience among different devices and services, called coherence, was introduced and abstraction levels of user interfaces were proposed as the denominator of defining coherence. Then types of users' task knowledge at each abstraction level were discussed with examples. Conclusion: This paper concluded by discussing design requirements for designing coherent user interfaces among devices and services.

보육교사 적성검사 도구 개발 (The Development of an Aptitude Test for Child Care Teachers)

  • 김혜경;조복희
    • 아동학회지
    • /
    • 제33권5호
    • /
    • pp.221-246
    • /
    • 2012
  • This study was conducted in order to develop an aptitude test for child care teachers (ATCCT) and to analyze it in terms of both validity and reliability. The main participants in this study consisted of 710 pre-service child care teachers. The results of factor analysis identified 7 factors and 56 items which were selected from 121 items in the original scale. The seven factors were as follows; interpersonal relationship management abilities, receptiveness and responsiveness to children, creativity and personal development, the ability to form close relationships with children, the ability to supervise child safety, the sense of duty, and positive emotions. The four factors were related to social relationship. Criterion-related validity was established by using correlations between the ATCCT and the TSES (Teacher Self-efficacy Scale). The internal consistency was found to be relatively high (Cronbach's ${\alpha}$ = .94) and test-retest reliability was also established (r = .53). In addition, there were differences among pre-service child care teacher groups according to both relative levels of education and courses taught.

PROPAGATION OF MULTI-LEVEL CUES WITH ADAPTIVE CONFIDENCE FOR BILAYER SEGMENTATION OF CONSISTENT SCENE IMAGES

  • Lee, Soo-Chahn;Yun, Il-Dong;Lee, Sang-Uk
    • 한국방송∙미디어공학회:학술대회논문집
    • /
    • 한국방송공학회 2009년도 IWAIT
    • /
    • pp.148-153
    • /
    • 2009
  • Few methods have dealt with segmenting multiple images with analogous content. Concurrent images of a scene and gathered images of a similar foreground are examples of these images, which we term consistent scene images. In this paper, we present a method to segment these images based on manual segmentation of one image, by iteratively propagating information via multi-level cues with adaptive confidence. The cues are classified as low-, mid-, and high- levels based on whether they pertain to pixels, patches, and shapes. Propagated cues are used to compute potentials in an MRF framework, and segmentation is done by energy minimization. Through this process, the proposed method attempts to maximize the amount of extracted information and maximize the consistency of segmentation. We demonstrate the effectiveness of the proposed method on several sets of consistent scene images and provide a comparison with results based only on mid-level cues [1].

  • PDF

흐름제어 기반의 적응형 전자결재 시스템 개발 (Development of Adaptive Electronic Approval System(EAS) Based on Workflow Control)

  • 권영도;신동우
    • 연구논문집
    • /
    • 통권30호
    • /
    • pp.169-176
    • /
    • 2000
  • The Evolution of Workflow Managment consists of rhe automation of business procedures or "workflows" during which documents, information or tasks are passed from one participant to another in a way that is governed by rules or procedures. Workflow technologies have evolved from image management system, document management system, relational or object database systems, and electronic mail system. Workflow Management system has the benefits to improve better efficiency, process control,flexibility, business process. Automation of many business processes results in the elimination standdardizing working methods. Consistency in the processes leads to greater predictability in levels of response to customers and software control over processes enables their re-design in line with changing business needs, In this present study, we implement Electronic Approval System which is a kind of Workflow Management system using static and dynamic flow control information on the web environment.

  • PDF

아동 후기 또래괴롭힘 참여자 역할의 안정성 및 변화와 환경적 특성과의 관계 : 주변또래의 역할을 중심으로 (Stability & Changes of Participant Roles in Bullying and Associated Environmental Characteristics : With a Focus on Peer Bystanders)

  • 서미정
    • 아동학회지
    • /
    • 제36권4호
    • /
    • pp.17-32
    • /
    • 2015
  • The purpose of the present study was to explore the stability and changes of participant roles in the bullying process, namely, bullies, victims, followers, outsiders, and defenders. In addition, this study examined associated environmental characteristics of both followers and defenders in sixth graders among peer bystanders in the fifth grade. The participants consisted of 461 children from grades 5 to 6(male: 239, female: 222). Data were collected at one year intervals for two data points. The results indicated a moderate consistency in the participant roles the children take across time. Followers and outsiders tended to change differently in their roles one year later. On the other hand, defenders, bullies, and victims tended to keep the same role. The defenders group generally had higher levels of peer attachment, teacher attachment and community's supervision than the followers group. The implications for future research and intervention in bullying were also discussed.