• Title/Summary/Keyword: Effectiveness

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Shielding Effectiveness and Cooling Charateristics of Multi-Apertures in Enclosures (다중개구면 함체의 차폐효과 및 냉각특성)

  • 송규섭;김광수;김형섭;박중무
    • The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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    • v.5 no.2
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    • pp.29-38
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    • 1994
  • The denser and higher speed telecommunication systems get, the more electromagnetic waves and more heat they throw off. With power predictions lastly for the upcoming systems, they need the enforced method to optimize the technologies between shielding effectiveness and cooling characteristics. In the present study, the shielding effectiveness and cooling characteristics for en- closures with multiapertures considered as fundamental solution in telecommunication systems are performed both of experimentally and unmerically. The shielding effectiveness measured from ex- perimental work is compared with both of the analytical data for flat plates with multi-apertures and the cooling characteristics by the numerical solution. As results, the most significant influence on the shielding effectiveness of enclosures is determined by the porosities of apertures, and it is found that shielding effectiveness and cooling capabilities are significant varied, reciprocally,at which porosity is more than 80%.

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Evaluation on Effectiveness of the Compensation System for Reproducing or Interactively Transmitting Works in Libraries (도서관의 저작물 복제.전송 보상금제도 효용성 평가)

  • Hong, Jae-Hyun
    • Journal of Korean Library and Information Science Society
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    • v.42 no.3
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    • pp.351-379
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    • 2011
  • The compensation system for reproducing or interactively transmitting works in libraries has been introduced in 2003. It has passed more than 7 years since this system has been implemented in July 2004. This study investigated current situation of operation on the compensation system for reproducing or interactively transmitting works in libraries. The survey on the effectiveness of the compensation system was conducted to a group of authors and librarians. First, the difference of the effectiveness of the compensation system between a group of authors and librarians was analyzed. In addition, the difference of the effectiveness of the compensation system according to status variable of author group was analyzed. Also the difference of the effectiveness of the compensation system according to status variable of librarian group was analyzed. Finally, this study pointed out the problems of the compensation system and presented the way to improve the problems.

A Study on the Electromagnetic shielding Effectiveness Using Conductive Polymers (전도성 고분자를 이용한 전자파 차폐효과의 연구)

  • 하남규;이보현;김태영;김종은;서광석
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.3
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    • pp.207-214
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    • 2001
  • The conductive polymers, polyaniline (PANI) emeralidin base and 3,4-polyethylene dioxythiophene(PEDOT) were synthesized and coated on the PET film dealt with acryl type primer to study the electromagnetic shielding effectiveness. When both PANI and PEDOT were coated on the PET film dealt with acryl type priemer, their surface properties such as he adhesive increased. For PANI, when blended with the binder such as PMMA, it adhesive and surface hardness increased, too. The visible light transmittance decreased, while the electromagnetic shielding effectiveness increased, when coated thickness of PANI and PEDOT increased. For PANI, the electromagnetic shielding effectiveness increased as its surface resistance decreased. For PANI, when the surface resistance was 140 Ω/$\square$, the shielding effectiveness was found to be 11 dB in the far field, and 13 dB in the near field at 1 GHz. For PEDOT, when the surface resistance was 200 Ω/$\square$, the shielding effectiveness was found to be 3 dB in the far field, and 7dB in the near field.

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A Study of On-line Education on Training Effectiveness (온라인(on-line) 교육훈련의 효과성에 관한 연구)

  • 남기찬;임효창;황국재
    • Journal of the Korean Operations Research and Management Science Society
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    • v.27 no.1
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    • pp.75-94
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    • 2002
  • The development of Information technologies huts contributed on-line training as one of important education methods. On-line training In firms, which is similar to e-learning or virtual education, provides trainees with more education opportunities in diverse ways. It has developed a range of innovative services with an one-stop solution of education within the electronic sector. Also under the on-line training environment, trainees can undertake customized training packages at anytime and any places. Moreover, information technology allows both the trainers and other trainees to be decoupled in any of the elements of time, place, and space. Two research questions are investigated : what are the determinants affecting the on-line training effectiveness and how those variables effect the two aspects of training effectiveness: learning performance and transfer performance. Based on the previous literature conducted on the traditional training environment, the determinants of training effectiveness are derived. light hypotheses are developed based on literature reviews and tested by questionnaires survey data. The collected data have been analyzed by LISREL. It is found that the relationship between individual, organizational and on-line sloe design variables and training effectiveness (learning and transfer) are significant. The contribution and limitations of this research are also discussed tilth future studies.

A Review on Prescriptions for Mouth and Teeth in 「Throat, Mouth and Teeth」 of 『Yuyaoyuanfang』 (『어약원방(御藥院方)』 「인후구치문(咽喉口齒門)」 중 치아질환 처방에 관한 고찰)

  • Shin, Jae-Hyuck;Song, Ji-Chung;Maeng, Hak-Young;Eom, Dong-Myung
    • The Journal of Korean Medical History
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    • v.25 no.1
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    • pp.81-91
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    • 2012
  • Objectives : "Yayaoyuanfang" is a prescription book, compiled by Xuguozhen in 1267. In "Yayaoyuanfang", there are 13 chapters including "Throat, Mouth and Teeth". Because there are few prescription books focused only on mouth and teeth disease in traditional medicine, "Throat, Mouth and Teeth" in "Yayaoyuanfang" is distinctive. Methods : We try to analyze prescriptions by form, effectiveness and report experiences in "Yayaoyuanfang". Results : There are 95 prescriptions with 77 powder, 5 paste, 5 liquid, 2 granule and 5 other forms. Effectiveness of those are divided into teeth, gum and mouth. Effectiveness for teeth are about pains, weakness, cavity, discoloration and so on. Effectiveness for gum are about pain, swelling, weakness, shrinking, etc. Effectiveness for mouth is about bad breath. Conclusions : "Throat, Mouth and Teeth" in "Yayaoyuanfang" has professional prscriptions for throat, mouth and teeth with several form and effectiveness.

An empirical study of the impact which the change of age ratio of disaster response organization has on organization effectiveness and quality assurance - Focused on field activities firefighters in Seoul metropolitan city - (재난대응조직 연령구성비 변화가 조직효과성 및 서비스질 보장활동에 미치는 영향에 관한 실증분석 - 서울지역 현장활동 소방공무원을 중심으로 -)

  • Park, Chan-Seok
    • Journal of the Korea Safety Management & Science
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    • v.16 no.4
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    • pp.133-145
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    • 2014
  • Aging of the fire organizations, typical disaster response agencies also will be in serious problems with aging society. It is expected that the ratio of more than fifties will reach 31~40% after 10~15 years in Seoul fire organization. This Aging of firefighters can bring about a serious problem in disaster and safety management, since firefighters require robust fitness and healthy bodies in disaster situations. In this study, after the analysis of aging status and trend of firefighters in Seoul, I have an empirical analysis about the impact this aging has on organization effectiveness and QA. As a result, the increase of the elderly reduced organization effectiveness and QA. In addition, in the group consisting of less than 50, it is expected to increase the organization's effectiveness and QA activities through field activity to improve the professional skills with age, but could not be confirmed. In the group consisting of more than fifties, it was found that aging had a significant negative impact on organizational effectiveness and QA activities as factors, including physical deterioration by aging.

The Effect of Burnout in Non-profit Organization Worker's on Organizational Effectiveness -A Focus on the Healthy Family Support Center and Multicultural Family Support Center (비영리기관 종사자의 소진이 조직효과성에 미치는 영향 - 건강가정지원센터와 다문화가족지원센터를 중심으로)

  • Seo, Jong Soo;Cho, Hee Keum
    • Journal of Family Resource Management and Policy Review
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    • v.19 no.4
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    • pp.163-181
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    • 2015
  • This study focused on the Healthy Family Support Center and Multicultural Family Support Center, which supervise the main field of family resource management with institutional household factors. Our research objective was to present datas demonstrating an improvement in the organizational effectiveness of the Multicultural Family Support Center. The burn out average of employees working for the non-profit organization was 2.45, emotional burnout was 2.87, achievement was 2.43, and dehumanization was 2.06. The effectiveness average of the nonprofit organization was 3.56, profitability was 3.65, job satisfaction was 3.58, and organizational commitment was 3.45. The generic characters that caused burnout were age, information, and professionalism in research. The generic characters and burnout that affected the organizational effectiveness included a lack of accomplishment, and emotional exhaustion, and depersonalization, lack of information and professionalism, lack of external resources in that order. The purpose of this research was to determine the effects of burnout in order to prevent job changes and to provide basic data for the improvement of organizational effectiveness.

The Determinants of Management Information Systems Effectiveness in Small- and Medium-Sized Enterprises

  • LE, Quang Bon;NGUYEN, Minh Dat;BUI, Van Can;DANG, Thi Mai Huong
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.8
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    • pp.567-576
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    • 2020
  • This study develops a mediating model to explore the relationships between organizational characteristics, manager's knowledge, management commitment, user involvement, information quality, and management information system effectiveness in small- and medium-sized enterprises in Vietnam. Adapting scales from previous research, the authors designed questionnaires, which they distributed to respondents in Vietnamese small- and medium-sized enterprises. Also, by employing a meta-analytic path analysis throughout structural equation modelling (SEM) with sample of 356 respondents, authors indicate that organizational characteristics are directly related to management information systems effectiveness. Moreover, manager's knowledge, user involvement, and information quality show their important roles in the increase of management information system effectiveness, yet management commitment does not indicate a similar role in the growth of management information system effectiveness. Bootstrapping is utilized to discover the meditating role of information quality, illustrating that quality information mediates the linkages between user involvement, organizational characteristics, and management information systems. However, the mediating role of information quality in the relationship between management commitment, manager's knowledge, and management information systems is not significant. This study contributes to the management information system literature as well as to enhance MIS effects in small and medium-sized enterprises.

The Influence of Individual Characteristics, Training Content and Manager Support on On-the-Job Training Effectiveness

  • IBRAHIM, Hadziroh;ZIN, Md. Lazim Mohd;VENGDASAMY, Punitha
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.499-506
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    • 2020
  • The study examines the influence of individual characteristics, training content, and manager support on the effectiveness of on-the-job (OJT) training in the banking and finance industry. A simple random sampling technique was used to select the samples. Questionnaires were distributed to respondents in order to obtain the data. Using cross-sectional data obtained from 396 respondents in Bank A in Malaysia, the multiple regression results show that self-efficacy, motivation to learn, training content, and manager support have positive influence on OJT training effectiveness. Among all these factors, manager support is very highly correlated with OJT training effectiveness. The findings have given fruitful insight of the crucial roles of OJT training in the respective bank, particularly to bring forward the roles of systematic design and implementation of OJT training. This study is not only expanding knowledge in OJT and training, but offers managers practical insights in developing good OJT training program by considering employees need, capabilities, skills and job requirement. Furthermore, this study also provides a valuable framework in identifying the effectiveness of OJT training program for certain jobs. Further discussion of the research findings and its implications to theoretical knowledge of training and managers are promised at the end of the article.

Relationship between ARCS (Attention, Relevance, Confidence, and Satisfaction) Learning Motivation Factors and Class Effectiveness Inherent in Problem-Based Learning Classes (문제중심학습 수업에 내재된 학습동기 유발요인과 수업효과성의 관계)

  • Lee, Mi Suk;Chae, Soo Eun
    • Korean Medical Education Review
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    • v.16 no.3
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    • pp.156-166
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    • 2014
  • The current study aimed to find the relationship between attention, relevance, confidence, and satisfaction (ARCS) learning motivation and class effectiveness inherent in problem-based learning (PBL) classes designed for dental and nursing students. Seventy-nine participants responded to survey items for motivation and class effectiveness after completion of their classes. The study findings were as follows. First, the differences among the $dental^{**}$, $clinical^{**}$, and $nursing^{**}$ PBL classes were identified in terms of class effectiveness (F=3.63, p<0.05) and academic achievement (F=13.9, p<0.01). Second, three learning motivation factors-satisfaction (t=4.07, p<0.01), confidence (t=2.84, p=0.01), and relevance (t=2.96, p<0.01)-appeared to determine class effectiveness in the abovementioned order. Only attention (t=2.02, p=0.05) was significantly related to academic achievement. Third, the relationship between hours of learner contribution to the PBL tasks and academic achievement was statistically significant. Therefore, we suggest the incorporation of ARCS motivation factors in PBL classes on the basis of the characteristics of each major and grade.