• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2022년도 추계학술대회
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• pp.327-328
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• 2022

'KS V 0054–단정용어' 는 '스포츠 및 오락용 단정' 의 용어에 대하여 규정하고 있다. '스포츠 및 오락용 단정'은 "플레저 보트" 라고 부르기도 한다. 특히, 단정(短_짧을 단, 艇_거룻배 정)은 소형선의 총칭으로 현재 국내에서는 소형 선박, 레저 보트, 플레저 보트, 레저 선박, 수상레저기구, 동력수상레저기구 등 용도 및 관계 법령에 따라 달리 정의하고 있다. 이에 일본식, 한자식 용어와 외래어가 혼용되어 사용되고 있는 플레저 보트(선체, 의장품, 범장 등)의 용어 표준화 방안을 제시 하고 또한 'KS V 0054–단정용어' 의 개정 방안을 제시 하고자 한다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 추계학술대회
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• pp.51-52
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• 2023

한국해양수산개발원(KMI) 조사에 따르면, 수상레저장비 중 하나인 전기 추진 보드류 (전동서핑보드, 전동웨이크보드, 전동패들보드 등)의 경제규모는 '28년도 까지 약 59억 달러까지 성장할 것으로 예측 될 정도로 급격한 성장을 하고있는 품목으로, 국내에서도 활발하게 제조, 수입, 유통 등이 이루어지고 있다. 하지만 성능 및 안전을 평가하는 정형화된 국내외 시험 표준이 전무한 실정으로, 시험 및 검사 없이 제조사의 자체 테스트에 의존하여 시장에 출시 되고 있다. 이에 신뢰성 있는 전기 추진 보드류 안전기준(안)을 개발 및 제시함으로써 제품의 품질 및 안전성을 향상시키고, 위해사고의 예방 및 국민의 건전한 수상레저활동 확보를 위한 기반을 조성하고자 한다.

• 한국조경학회지
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• 제39권6호
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• pp.57-66
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• 2011

본 연구는 서울특별시에서 시행한 대학교 담장개방 녹화사업 대상 학교들을 연구 대상으로 선정하였으며, 현재까지 담장개방이 시행된 총 24개의 대학교 중 담장개방 형태를 유형화하여 분류한 후, 각 유형별 대학 중, 시설이 다양하고 이용자가 많아 활성화 된 대표 사례를 선정하여 조사하여 분석하였다. 현장관찰과 문헌조사, 설문조사의 방법을 실시하여 연구하였다. 회수된 설문지는 담장개방 녹화사업 만족도에 대한 신뢰도 분석, 유형별 이용실태에 대한 빈도분석, 전체만족도와 공간환경 및 시설물에 대한 회귀분석, 유형별 차이검증을 위한 One-way ANOVA를 각각 실시하였다. 유형별 이용실태 분석결과, 법제상에서의 개념인 설치위치, 이용자 특성, 이용목적 등 3가지 분석기준과 일치하는 것으로 나타났다. 시설별 전체만족도는 전원형 근린소공원 유형의 서울여자간호대학을 제외한 도시형 근린소공원의 감리교신학대학, 광장형 도심소공원의 건국대학교, 녹지형 도심소공원의 세종대학교는 만족하고 있는 것으로 나타났다. 대체적으로 분수/수경시설, 체력단련시설, 광장시설에 만족하지 않는 것으로 나타나, 대학교 담장개방 녹화사업 시 시설물에 대한 확충이 필요한 것으로 사료된다. 공간 환경에 대한 전체만족도는 전원형 근린소공원 유형의 서울여자간호대학이 만족하지 않는 것으로 나타났고, 도시형 근린소공원의 감리교신학대학, 광장형 도심소공원의 건국대학교, 녹지형 도심소공원의 세종대학교는 만족하고 있는 것으로 나타났다. 또한 네 개의 공원이 대체적으로 시설이용 편리성과 개인사생활에 대해 만족하지 않는 것으로 나타났으며, 대로변에 위치한 도심소공원들은 소음정도에 만족하지 않는 것으로 나타나, 담장개방 녹화사업 시 가장고려해야 할 점으로 사료된다.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 1998년도 The 12th Asia Quality Management Symposium* Total Quality Management for Restoring Competitiveness
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• pp.580-593
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• 1998

2차 반응표면분석을 위한 부분합성계획은 실험 비용이 많이 들거나, 실험 자체가 어려워서 시간의 소비가 많은 경우, 실험오차의 독립추정이 가능할 때 효과적이다. 반응표면분석에서는 회전성과 기울기 회전성을 만족하는 것이 중요하다. 따라서 본 논문에서는 회전성과 기울기 회전성의 관점에서 부분합성계획을 살펴보고 또한 인자의 수와 중심점의 수가 변함에 따라서 어떤 a(중심에서 축점까지의 거리)의 값이 최적의 실험계획이 되도록 하는지를 연구하였다.

• 대한산업공학회지
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• 제41권2호
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• pp.137-143
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• 2015

This thesis focuses on the 3D interface tab page type and mode of screen that affect the usability of the small screen devices such as smartphone. The experiments examined eight 3D UI designs, combinations of two modes (Portrait, Landscape) of screen, and four types (Vertical data mountain, Horizontal data mountain, Vertical carousel, Horizontal carousel). Twenty-six participants participated in the experiment. The completion time, preference and fun score were measured. The results showed that the vertical data mountain type provide the best performance in terms of the all conditions. The results of this study suggest a practical approach for the 3D UI tab page design for the small screen devices.

• 한국간호교육학회지
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• 제16권2호
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• pp.292-300
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• 2010

Purpose: This study examined the effects of Testicular Self-Examination (TSE) small-group education on knowledge, self-efficacy, and performance intention in male college students. Method: A non-equivalent pre-post test of quasi-experimental design was used. Out of 74 male college students selected by convenient sampling, 37 students were assigned to the experimental group and were given TSE small-group education. A 60-minute program consisted of lecture, demonstration, practice, discussion, and Q&A. Result: With an initial homogeneity between the two group, scores of knowledge about testicular cancer (p<.001), self-efficacy for TSE (p<.001), and performance intention of TSE (p<.01) of the experimental group were significantly higher than those of the control group after the intervention. Conclusion: Small group education for TSE was effective in improving knowledge about testicular cancer, self-efficacy for TSE, and intention to perform TSE. Thus, this education program is considered to be useful for testicular cancer prevention and reproductive health promotion in male college students.

• 한국농공학회논문집
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• 제46권3호
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• pp.3-14
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• 2004

A two-dimensional numerical model based on a finite volume method was formulated to solve the shallow water equations and applied for evaluating drainage characteristics at large-sized paddy fields. Manning roughness coefficient was calibrated using the observed inundating depths at drainage tests, and used for validating the model with the results from another drainage test. The simulated results were in good agreement with the observed inundating depths. The result of surface drainage showed that the longer width of the outlet was or the more the number of drainage outlet was, the shorter the drainage time was taken, and the larger the size of the field become, the longer the drainage time was taken, and the field shape had little effect on drainage time. To reduce the drainage time to 24 hours, the outlet is located lower than the elevation of the basin and small drainage ditch is constructed at the field. The results showed that the drainage time was taken short as the small drainage ditch was constructed. The comparison of drainage time as to the size of field constructed small drainage ditch showed the field, 100m ${\times}$ 200 m, can be drained in 24 hours.

• Journal of Electrical Engineering and Technology
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• 제5권1호
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• pp.16-20
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• 2010

Recently, the smart grid has become a hot issue and interest in related power sources have increased accordingly. The implementation of a smart grid can enable many generation resources to be linked to the power system, including small-scale reactors for the purpose of co-generation. Research on small-scale reactors is being carried out all over the world. Similarly, Korea is also conducting research on multi-purpose regional energy systems using nuclear energy. This paper proposes a real-time data acquisition and analysis system for small-scale reactors, and is known as the REX-10 (Regional Energy rX 10 MVA). This analysis requires real-time simulations for the power system since it needs data communication with a remote REX-10. A RTDS (Real Time Digital Simulator) has been used for the simulation, and a SCADA/HMI system interfaced with the RTDS is proposed for the purpose of monitoring and control of the regional energy system.

• Nuclear Engineering and Technology
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• 제29권1호
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• pp.35-44
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• 1997

Critical too-Phase flow rates of subcooled water through Short Pipes (L 140039n) with small diameters (D$\leq$7.15 min) have been experimentally investigated for wide ranges of subcooling (0~199$^{\circ}C$) and pressure (0.5~2.0 MPa). To examine the effects of various parameters (i.e., the location of flashing inception, the degree of subcooling, the stagnation temperature and pressure, and the pipe size) on the critical two-phase flow rates of subcooled water through short pipes with small diameters, a total of 135 runs were made for various combinations of test parameters using four different L/D test sections. Experimental results that show effect of various parameters on subcooled critical two phase flow rates are presented in the form of graphs such as the dimensionless mass flux ( $G^{*}$) versus the dimensionless subcooling ( $T_{sub}$$^{*}$) curve. An empirical correlation expressed in terms of a dimensionless subcooling is also obtained for subcooled two-phase flow rates through present test sections. Comparisons between the mass fluxes calculated by present correlation and a total of 755 selected experimental data points of 9 different investigators show that the agreement is fairly good except for very low subcooling data obtained from small L/D (less than 10) orifices.s.s.s.

• Journal of the Korean Wood Science and Technology
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• 제30권3호
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• pp.59-65
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• 2002

EYM (European Yield Model), which was adopted in NDS (National Design Specification for wood construction), has been used in Korea without any verification of the analysis of bolted wood connections. In the case of applying lumber from domestic small diameter logs, however, there are some problems with the direct application of EYM ; 1) relatively low dowel bearing strength and dimensional stability due to a large amount of immature wood, 2) effect of MC (moisture contents) on the dowel bearing strength of wood and the yield load of a bolted connection. To evaluate the strength properties of bolted connections with lumber from domestic small diameter logs, effect of MC on the dowel bearing strength of wood was investigated and double shear bolted connection tests were performed. As the MC of wood increased, the dowel bearing strength was linearly reduced, even under 19% MC, which showed that adjustment, not considered in NDS, was required. Double shear bolted connection tests indicated that effect of MC on yield load should be considered in order to determine design value.