• Title/Summary/Keyword: perception of efficiency

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A Survey on the Perception for Legal Education Efficiency of Engineering Department (공학 계열의 법학 교육 효율화를 위한 인식 조사)

  • Oh, Tae-Kon
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.8
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    • pp.161-168
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    • 2014
  • This study conducted a survey on the perception for legal education efficiency of engineering department. This study is to search for more efficient legal education method to engineering department's students, reflecting the reality that our universities have appointed the subjects - related with engineering accreditation such as engineering law - as compulsory subjects. The method of this study is that with questionnaire extracted the advanced researches, it selected the 180 undergraduates of engineering college in C university as original samples, chose 161 data as final efficient samples except for 19 untrustworthy respondent, analyzed and drew the result. The specific results are as follows. In case of legal education in engineering department, it was found that women rather than men, the students first taking the subject more than those retaking the subject, the students who have taken the basic law subjects such as law and society, an introduction to law, and the students who hope to get a job in their major field showed the higher class concentration degree and satisfaction degree.

Optimal Configuration of Distribution System considering the Economic Operations of a Microgrid

  • Moon, Hyun-Ho;Lee, Jong-Joo;Choi, Sang-Yule;Shin, Myong-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.7
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    • pp.20-25
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    • 2010
  • With the diversification of distribution facilities, existing distributed generation can be subdivided into Microgrids, which are smaller units for application. These Microgrids, subdivided as such and connected to distribution systems, should operate under driving plans that will ensure their economic efficiency and, accordingly, the configuration of those distribution systems that include Microgrids should also be changed. The perception of the necessity to secure the economic efficiency of distribution systems is gradually increasing and studies intended to assess the economic efficiency of Microgrids and Smartgrids are ongoing. In this paper, the power generation capacity of an economically operative Microgrid was calculated using the MonteCarlo simulation, which is a method based on the probability theory considering the power generation cost of Microgrids linked with power supply systems and reverse sales costs, etc., and an optimum distribution systems was configured based on the results of these calculation.

An Efficient Frame-Level Rate Control Algorithm for High Efficiency Video Coding

  • Lin, Yubei;Zhang, Xingming;Xiao, Jianen;Su, Shengkai
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.4
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    • pp.1877-1891
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    • 2016
  • In video coding, the goal of rate control (RC) is not only to avoid the undesirable fluctuation in bit allocation, but also to provide a good visual perception. In this paper, a novel frame-level rate control algorithm for High Efficiency Video Coding (HEVC) is proposed. Firstly a model that reveals the relationship between bit per pixel (bpp), the bitrate of the intra frame and the bitrate of the subsequent inter frames in a group of pictures (GOP) is established, based on which the target bitrate of the first intra frame is well estimated. Then a novel frame-level bit allocation algorithm is developed, which provides a robust bit balancing scheme between the intra frame and the inter frames in a GOP to achieve the visual quality smoothness throughout the whole sequence. Our experimental results show that when compared to the RC scheme for HEVC encoder HM-16.0, the proposed algorithm can produce reconstructed frames with more consistent objective video quality. In addition, the objective visual quality of the reconstructed frames can be improved with less bitrate.

A Study of Individual Differences across Numerosity Sensitivity, Visual Working Memory and Visual Attention (수량민감도와 시각작업기억 및 시각적 주의 간 개인차 연구)

  • Kim, Giyeon;Cho, Soohyun;Hyun, Joo-Seok
    • Science of Emotion and Sensibility
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    • v.18 no.2
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    • pp.3-18
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    • 2015
  • Numerosity perception is considered as an innate ability of human being where its sensivitiy may widely vary across each individual person. The present study explored the relationship between visual working memory (VWM), visual search efficiency, and numerosity sensitivity. To accomplish this, we calculated each participant's K-value from change detection performance representing one's storage capacity in VWM, slopes of search RTs representing the search efficiency, and discrimination sensitivity for a quantity difference across two sets of dot arrays representing the numerosity sensitivity. The correlational analysis across the measurements revealed that participants with a high VWM capacity better discriminated the numerosity difference in the arrays when the spatial information in the two dot arrays was preserved. In contrast, the participants with high search efficiency discriminated better the difference in the arrays when the spatial information in the arrays was not preserved. The results indicate high VWM-capacity individuals were presumably able to use a strategy of storing the dot arrays by grouping them into a smaller pattern of dot arrays while high search-efficiency individuals were able to use a strategy of rapidly switching their focused attention across the dots in the arrays to count each individual dot. These in sum suggest that individual differences in numerosity sensitivity rely on one's working memory capacity as well as their efficient use of switching focused attention.

An Evaluation of Human-Product Interface Usability (인간-제품 인터페이스의 사용성 평가)

  • 최재하;박영택
    • Proceedings of the ESK Conference
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    • 1997.10a
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    • pp.249-259
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    • 1997
  • As the gap between competing products narrows in terms of performance and quality, the product usability is rapidly becoming a new dimension of product design as the key to offering distinctive value to the customer. Because the user interface is important, not only for the user but also for the efficiency of te whole organiation, system designers require increasingly precise evaluation methods to determine how effective and usable human-product interface is. In this study a new methodology named usability analysis diagram(UAD), for evaluating usability of human-product interface systematically, was developed. UAD is a top-down flow diaagram of a human-product interaction, in ehichfour basic elements - perception, understanding, intellectual decision and action - were classified and then represented by a particular symbol for each. The usability of the product is assessed by the frequency of each symbol in a diagram which represents a sequence of cognitive and physical activities of users during the use of the product, and by the level of difficulty that is classif- ied in three levels in terms of easiness of perception, understanding and action. In order to test validity of the proposed UAD in a real situation, a case study was performed on two different cameras, automatic and manual, and their usability was successfully evaluated and compared.

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The Comparative Analysis of Visual Perceptual Function and Impulse on Players Chagi in Taekwondo Events (태권도 종목별 선수들의 차기에 대한 시지각기능 및 충격량 비교 분석)

  • Lee, Young-Rim;Ha, Chul-Soo
    • Korean Journal of Applied Biomechanics
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    • v.20 no.2
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    • pp.205-212
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    • 2010
  • The purpose of this study was to compare the efficiency of visual perception and impulse according to the three types of Taekwondo players to be able to supply an efficient training method, for this a total of 12 representative Taekwondo players of the Korean National team, 4 poomsae players, 4 kyokpa players and 4 kyorugi players weighting between 68 to 74 kg, and the results from the motion analysis system, eye tracker and Electronic hogu are as follows. For the visual perceptual function, the total body reaction time was slowest for the kyokpa group, and for the visible reaction and vision fixation time was longest of the poomsae group, while the performance movement was fastest for the kyorugi group. As for description of the two kicking motions dollyo chagi and dolgae chagi the longer visual fixation helps the accuracy of the kick. In conclusion, as there was a difference between the groups, this information could help to train the visual perception of players according to what event they are participating in.

Analysis of Experts' Views on Health Care: A Survey (보건의료체계에 대한 전문가 인식 분석)

  • Jung, Young-Ho;Ko, Suk-Ja
    • Health Policy and Management
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    • v.16 no.4
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    • pp.86-111
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    • 2006
  • Either ways of understanding health care as a commodity or public work are at opposite ends of health care spectrum. These two rival conceptions reflected by viewpoint(ideology) would lead to different directions in policy-making for health care reform. The purpose of this study is to access the value differences of experts' policy views about health care issues by analyzing the extent of consensus among experts in the field of health care. Using primary data obtained through a mail survey of 558 experts in the field of health care, we analyzed the differences of experts' opinions about characteristics of health care market, policy issues and values Gdeology). The study represents from 50-50 split analysis, entropy index, and factor analysis that the wide spread disagreements over health policy, which is a major barriers to effective policy-making, could be caused by the ideological perception differences among experts. This implies that, if values play an important role in policy-making, we should identify the differences in value and seek ways to balance among the diverse values such as efficiency, equity, freedom, and security. For this, the policy issues debated on differences in values should be reconciled for narrowing gaps of experts' perceptions through various ways.

A Study on the Student Perception Survey to Improve the Quality of Field Practice

  • Younghee Noh
    • International Journal of Knowledge Content Development & Technology
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    • v.13 no.2
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    • pp.89-104
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    • 2023
  • The purpose of this study was to propose ways to improve the library field practice of Department of Library and Information Science to improve the field environment and educational content, enhance students' field practice, increase efficiency, and increase students' satisfaction. To this end, a survey and interview survey were conducted on students who were going to do field training, and the results are as follows. First, students were well aware of what preparations should be made at school before going to field training. Second, students showed high awareness of their rights guarantees and requests for action in the event of problems at field training institutions. Third, students showed a high demand that field training should guarantee the minimum hourly wage. What is an issue in this regard is that policies that can satisfy both the burden of universities for continuous student guidance and evaluation, the burden of training institutions to conduct education while paying practical expenses, and the rights of students to be protected. This study was aimed at students, but it seems that realistic field practice policies should be presented from various angles as research on government ministries or university authorities is added.

Suitable Health Pattern Type Mapping Techniques in Body Mass Index

  • Shin, Yoon-Hwan
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.2
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    • pp.105-112
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    • 2016
  • In this paper, we propose a technique that can be mapped to the most appropriate type of health patterns, depending on the health status of health promotion measures to establish a body mass index (BMI). When used as a mapping scheme proposed in this paper it is possible to contribute to effective healthcare and health promotion. BMI is widely used as a simple way to assess obesity because body fat increases the status and relevance. Despite normal weight determined by this and because of the social atmosphere has increased prefer the skinny tend to try to excessive weight loss. Since health can affect the health maintenance and promotion of the rest of your life, depending on whether and how much weight perception and health can be considered as very important. Therefore, this paper identifies the differences in perception and in this respect for the body mass index (BMI). And physical, mental and map the appropriate type of pattern in the relationship between body mass index (BMI) in order to facilitate the social and health conditions. Proposal to give such a mapping technique provides the opportunity to increase the efficiency of health care and health promotion.

A Cyber-Training & Education Model for Tug-barge Operators

  • Lee, Eun-Bang;Yun, Jong-Hwui;Jeong, Tae-Gweon
    • Journal of Navigation and Port Research
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    • v.34 no.4
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    • pp.287-292
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    • 2010
  • The purpose of this study was to create a cyber-training & education program in response to the needs of skippers and crews operating tug-barges within Korean coastal waters and the rapid changers in this industry. Skippers and crews are inclined to operate tug-barges on the basis of experience rather than information. It is not easy to provide useful information whenever they want or to drill them in safety management skills, because of their passive attitude toward education and the few opportunities that exist. In order to increase educational opportunities, efficiency and motivation, the authors have developed this program which consists of a 'tug bridge resource management module, risk perception training module, accident case module, operating module and navigation module', and are hoping that this program will enhance and strengthen all tug-barge operations. We are also putting all our energies into designing up to date animation programs and developing new scenarios concerning the method of evaluation and certification distribution.