• Title/Summary/Keyword: statics

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A Study on Creativity Convergence Competency for Developing Creativity Human Resources (창의융합인재 양성을 위한 일부 대학생의 창의융합역량 수준 분석)

  • Choi, Yong Keum;Oh, Tae-Jin;Lee, Hyun;Lim, Kunok;Hong, Ji-Heon;Jeong, Su Ra
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.1
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    • pp.656-664
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    • 2020
  • This study obtained basic data for developing human resources with creativity convergence competency by surveying and analyzing the level of creativity convergence competency of university students. The study was conducted from October 1, 2019 to November 10, 2019 on university students attending the departments of computer science, pharmaceutical engineering, physical therapy and dental hygiene. The data from 296 students was finally used for this study, and IBM SPSS/Win statics 23.0 programs were used to analyze the data. Students who graduated from Seoul/Gyeonggi High School or those students with high undergraduate satisfaction were found to have high creativity convergence ability, and these results were statistically significant. Further, the group of students who had experience with Campus/Suburban competition, Global Competency training/ International exchange programs or the Capstone Design/Team Based Project showed high creativity convergence competency, and these results were statistically significant. Thus, this study identified the necessity of developing and operating various extra-curricular programs at education institutes in order to enhance students' creativity convergence capability.

A Dynamic Buffer Allocation Scheme in Video-on-Demand System (주문형 비디오 시스템에서의 동적 버퍼 할당 기법)

  • Lee, Sang-Ho;Moon, Yang-Sae;Whang, Kyu-Young;Cho, Wan-Sup
    • Journal of KIISE:Computer Systems and Theory
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    • v.28 no.9
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    • pp.442-460
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    • 2001
  • In video-on-demand(VOD) systems it is important to minimize initial latency and memory requirements. The minimization of initial latency enables the system to provide services with short response time, and the minimization of memory requirements enables the system to service more concurrent user requests with the same amount of memory. In VOD systems, since initial latency and memory requirement increase according to the increment of buffer size allocated to user requests, the buffer size allocated to user requests must be minimized. The existing static buffer allocation scheme, however, determines the buffer size based on the assumption that thy system is in fully loaded state. Thus, when the system is in partially loaded state, the scheme allocates user requests unnecessarily large buffers. This paper proposes a dynamics buffer allocation scheme that allocates user requests the minimum buffer size in fully loaded state as well as a partially loaded state. This scheme dynamically determines the buffer size based on the number of user requests in service and the number of user requests arriving while servicing current requests. In addition, through analyses and simulations, this paper validates that the dynamics buffer allocation outperforms the statics buffer allocation in initial latency and the number of concurrent user requests that can be supported. Our simulation results show that, in proportion to the static buffer allocation scheme, the dynamic buffer allocation scheme reduces the average initial latency by 29%~65%, and in a systems having several disks. increases the average number of concurrent user requests by 48%~68%. Our results show that the dynamic buffer allocation scheme significantly improves the performance and reduce the capacity requirements of VOD systems.

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The effects of Leisure activity, Self esteem, Achievement on Mental Wellbeing among the Aged (노인의 여가활동, 자아존중감, 성취감이 정신적 웰빙에 미치는 영향)

  • Han, Jong Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.11
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    • pp.645-652
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    • 2018
  • This study examined the effects of leisure activity, self-esteem, and the achievement on mental wellbeing among the elderly. The participants in this cross-sectional, descriptive study were 149 elderly who completed a self-report structured questionnaire. The data were analyzed using descriptive statistics, correlation and multiple linear regression analyses with SPSS statistics 20 program. The mental well-being averaged 51.5 (${\pm}15.1$); leisure activity averaged 26.2 (${\pm}6.5$); self-esteem averaged 30.2 (${\pm}5.2$), and self-esteem averaged 44.4 (${\pm}8.3$). The mental well being of the elderly was positively correlated with all three variables. The leisure activity, self-esteem, and achievement were strong predictors of the mental well-being among the elderly. These variables explained 42.7% of the variance in mental wellbeing. The results suggest that the elderly are satisfied with their own situations and abilities, have a positive mind by accepting their present state of being, continue social interactions through active leisure activities, and set specific goals. The mental well-being of the elderly can be improved.

A Basic Study of Verbs List for Vocabulary Learning Based on Augmented Reality (증강현실 기반 어휘 지도에서 동사 목록에 대한 기초 연구)

  • Hwang, BoMyung;Kwon, SoonBok;Kim, SeonJong;Shin, BeomJoo
    • 재활복지
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    • v.21 no.2
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    • pp.233-246
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    • 2017
  • The present study is a basic study for application of Augmented Reality (AR) to verb teaching for children with language developmental disorders and is intended to examine validity for the list of verbs at the beginning of development. To confirm the validity of the verbs list, the appropriateness of the verbs was evaluated by three professors with certification of KSLP (Korean Speech-Language Pathologist) working in the department of Speech-Language Pathology at the university. The motion validity test was conducted by showing motion implemented as AR to eight master's students in Speech-Language Pathology major, having them record verbs that came to their mind, and evaluating in the conformity. The second motion validity test was conducted by using 5-point Likert scales to 87 undergraduates in Speech-Language Pathology major and having them see the motions in AR and marked the degrees to which them see the motions conform to the relevant verbs on the scales. Using the SPSS 21.0 program, descriptive statics analyses of the results were conducted. Through this all process, thirty verbs were selected as having content validity. It could be seen that when AR based communication system are applied, things and backgrounds that complement the insufficient movements of motions and help motion recognition should be also provided. In future studies, the 3D images of the AR based communication system will be complemented and the content validity will be verified with typically developing children and the children with language developmental disorders.

Research of Student-teachers' Recognition on Korean Education for Specific Purposes - Focusing on Korean Education for Mission Purposes with Bibles (예비교사들의 특수목적 한국어교육에 관한 인식 연구 - 선교목적 성경 한국어교육을 중심으로 -)

  • Lee, Ran
    • The Journal of the Korea Contents Association
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    • v.21 no.7
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    • pp.427-439
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    • 2021
  • This study surveyed the recognition on the Korean education for specific purposes targeting student-teachers majoring Korean language education in a Cyber University located in Seoul. 50 among 57 students taking the class participated in this survey. The participants were the students-teachers interested in Korean education for the mission purposes and took the class during the second term in 2020. At the end of the term they participated in this survey. 6 items were objective and 4 items were narrative. Among the narrative ones, one was excluded from analysis. The objective items were investigated by descriptive statics and the narrative items were analyzed with qualitative approach. As a result, most of the participants preferred the combined textbooks with others such as the ones for general and mission purposes rather than the bibles only. They had positive opinions on using the bibles, but proposed that the bibles themselves are not the best choice for improving communicative competence and the text combination is the better choice because of the difficulty of the bibles, the lack of teachers' competence, and the learners' needs. However, while taking this class, they became to be aware of the possibilities of the bibles as textbooks, to possess the concern about the mission areas, to consider the possibilities of application and the educational methods in it, and to reflect the ways for self development. This study suggested several points as follows: the development of diverse textbooks according to situations and learners, two directions of teacher education and the cooperative works, and the necessities of the related departments and classes with mission purposes.

A Study on the Factor of Retention Intention on Nurses in Small and Medium-sized Hospitals (중소병원 간호사의 재직의도 영향요인 연구)

  • Kim, Mi-Hye;Park, Jeong-Min
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.2
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    • pp.195-203
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    • 2020
  • Purpose: This study was a descriptive study to investigate on the effect of calling, self-efficacy, workplace bullying on retention intention among nurses in small and medium-sized hospitals. Methods: The research subjects were 224 nurses selected through convenient sampling from among those who have worked six months or longer in seven small and medium-sized hospitals located in G City. The data were collected using a structured questionnaire from July 17 to 30, 2018. The data was analyzed by descriptive statics, a t-test, ANOVA, Scheffé test, Pearson's correlation coefficient, and a stepwise multiple regression using SPSS/WIN 22.0 program. As a measuring tool, Calling was the Calling & Vocational Questionnaire (CVQ) developed by Dik, Eldrige and Steger (2008). Self-efficacy was developed by Sherer et al. (1982) and modified by Jeong Ae-soon (2007). Workplace bullying was developed by Einarsen, Raknes and Matthiesen (1994) in the Norwegian Negative Behavioral Experience Questionnaire (NAQ), and by Nam Woong et al. (2010). The retention intention was to use NRI (Nurses' Retention Index) developed by Cowin (2002) as a tool for Kim Min-jung (2006). Results: Factors affecting nurses' retention were analyzed. The analysis showed that retention intention was positively affected by self-efficacy (β=.24, p<.001), sense of calling (β=.23, p<.001) and annual wage (β=.21, p=.001) and negatively affected by workplace bullying (β=-.16, p=.008) on a statistically significant level, with an explanatory power of 28.6%.

Development of a Model for Predicting Modulus on Asphalt Pavements Using FWD Deflection Basins (FWD 처짐곡선을 이용한 아스팔트 포장구조체의 탄성계수 추정 모형 개발)

  • Park, Seong Wan;Hwang, Jung Joon;Hwang, Kyu Young;Park, Hee Mun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.5D
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    • pp.797-804
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    • 2006
  • A development of regression model for asphalt concrete pavements using Falling Weight Deflectometer deflections is presented in this paper. A backcalculation program based on layered elastic theory was used to generate the synthetic modulus database, which was used to generate 95% confidence intervals of modulus in each layer. Using deflection basins of FWD data used in developing this procedure were collected from Pavement Management System in flexible pavements. Assumptions of back-calculation are that one is 3 layered flexible pavement structure and another is depth to bedrock is finite. It is found that difference of between 95% confidence intervals and modulus ranges of other papers does not exist. So, the data of 95% confidence intervals in each layer was used to develop multiple regression models. Multiple regression equations of each layer were established by SPSS, package of Statics analysis. These models were proved by regression diagnostics, which include case analysis, multi-collinearity analysis, influence diagnostics and analysis of variance. And these models have higher degree of coefficient of determination than 0.75. So this models were applied to predict modulus of domestic asphalt concrete pavement at FWD field test.

A Study of the Relationship between Positive Psychological Capital and Teaching Professionalism of Pre-service Early Childhood Teachers: An Analysis of the Mediating Effect of Passion for Teaching (예비유아교사의 긍정심리자본이 교사전문성에 미치는 영향 : 교직에 대한 열정의 매개효과)

  • Seung Hwa Jwa;Hae Jung Lee
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.5
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    • pp.193-201
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    • 2023
  • The purpose of this study was to examine the relationship among positive psychological capital, teacher professionalism, and passion for teaching of pre-service early childhood teachers. Specifically, this study investigated the mediating effect of passion for teaching on the relationship between positive psychological capital and teaching professionalism of pre-service early childhood teachers. The study participants were 198 pre-service early childhood teachers. Questionnaire were used to collect data. Data were analyzed using descriptive statics, Pearson correlation, multiple regression, and Sobel test for mediating effect. The results of the study were as follows: First, it was found that pre-service early childhood teachers had relatively high level of positive psychological capital, teacher professionalism, and passion for teaching. Second, there was a significant positive correlation between positive psychological capital, teacher professionalism, and passion for teaching of pre-service early childhood teachers. Third, the mediation effect of passion for teaching of per-service early childhood teachers between positive psychological capital and teacher professionalism was found to be partially significant. This result implies that positive psychological capitals and passion for teaching are to be effective to improve teaching professionalism of per-service early childhood teachers. The results of this study provides basic data on an early childhood teacher training program in improving teaching professionalism.

The Effect of Emotional Labor, Resilience on Performance of Long-term Care Hospital Employee (요양병원 직원의 감정노동, 회복탄력성 등이 업무성과에 미치는 영향)

  • Park, Jong-won
    • Journal of Venture Innovation
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    • v.4 no.1
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    • pp.39-50
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    • 2021
  • This was empirical research aimed at determining the effects of emotional labor, Resilience and service environment, on the performance of Long-term Care Hospital Employee. The participants were 180 employees working in long-term care hospitals in Gyeonggi-do. The collected data were analyzed using the SPSS statics19.0 program. The study were analyzed by frequency analysis and descriptive statistics, ANOVA, Scheffe? test, Pearson correlation coefficients, and stepwise regression. As a result of the study, age, marriage status, career, and position affected performance among the general characteristics.tion coefficients, and stepwise regression. As a result of the study, the average performance was 91.25 (±12.46) points, emotional labor was 41.25 (±4.21) points, Resilience was 52.89 (±6.37), and the service environment was 78.93(±15.3) points. The performance showed a positive correlation with emotional labor(r=.326, p<.001) service environment (r=.384, p=.005) and Resilience (r=.417, p<.001) of Long-term Care Hospital Employee. Service environment was the biggest factor affecting performance, and the second was resilience. The explanatory power of this regression model was 48.2% and was statistically significant (F=58.249, p<.001).

Economic Analysis of the Livestock Manure Treatment System Using Life-Cycle Cost Technique (LCC 기법을 통한 가축분뇨처리시설의 경제성 분석)

  • Kim, J.H.;Cho, S.H.;Kwag, J.H.;Choi, D.Y.;Jeong, K.H.;Chung, U.S.;Chung, M.S.;Park, S.K.
    • Journal of Animal Environmental Science
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    • v.17 no.sup
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    • pp.61-68
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    • 2011
  • To assess the total cost with all stages of facilities, the feasibility of Life Cycle Cost (LCC) analysis was examined in this study to estimate the livestock manure treatment system and optimal decision making process. For the economic evaluation, the plant/equipment investment and annual operation cost of four Public Livestock Recycling Facilities, whose treatment capacity is 100 ton piggery manure per day, was compared. The initial cost was in the range of 2,699 million won to 3,202 million won, where T and E methods were highest and lowest, respectively. The annual operation cost was in the level of 378 million to 498 million won, which decreased in the following order : T method > J method > E method > B method. For the LCC analysis, 4.7% of interest rate, 3.13% of inflation rate, and 1.52% of net discount rate was considered by the data received from Bank of Korea and Statics Korea in the period of 2000 to 2009. Also, for the calculation of present value factor, the durable years of civil engineering & construction, machinery and electric instrument was 30 years, 10 years and 15 years, respectively. Based on these consideration, operation cost was in the range of 17,570 won/ton to 20,661 won/ton, and E method (17,570 won/ton) was economical and B method (20,661 won/ton) was non-economical. Though initial cost of T method was higher than that of B method, LCC analysis of T method was lower than that of T method due to the lower operation cost. Therefore, LCC analysis, which considers both initial cost and operation cost, is more reasonable evaluation method than either initial cost or annual operation cost. For the change of LCC analysis according to the uncertainty, the sensitivity analysis was carried out using fluctuation magnitude of discount rate in the period of 2000 to 2009. As a result, LCC analysis evaluated by discount rate was stable for the uncertain factors since the cost leadership did not change even though the sensitivity analysis varied. In summary, the economic evaluation using LCC analysis could be an efficient reference to choose the suitable livestock manure treatment plants. Furthermore, standardization of statement calculation for the actual cost analysis should be conducted and more detailed study is necessary to validate this summary. Therefore, the application of comprehensive technology evaluation, which considers LCC analysis, should contribute in obtaining objectivity and enhancing reliability for the 'Evaluation of Livestock Manure Treatment System and its Technology'.