• 한국산학기술학회논문지
• /
• 제21권3호
• /
• pp.296-303
• /
• 2020

본 연구의 목적은 간호학생의 객관적 응급간호 임상수행능력에 영향 미치는 요인을 확인하기 위함이다. 영향 변수로는 간호학생의 일반적 특성과 함께 시뮬레이션 관련 변수로 객관적·주관적 임상수행능력, 비판적 사고성향, 학습 성과 성취 정도, 시뮬레이션 만족도, 시뮬레이션 자신감과 시뮬레이션 몰입도가 포함되었다. 대상자는 Y대학의 간호학과 4학년 92명이었으며 대상자들은 시뮬레이션 실습 전 연구에 대한 전반적인 설명과 함께 연구참여에 대한 동의서를 작성하였다. 일반적 특성과 시뮬레이션 관련 변수들은 학생들의 자가설문형태로 자료를 수집하였으며 객관적 임상수행능력은 간호학생들이 시뮬레이션 상황에서 간호수행을 하는 동안 평가자가 수행평가표에 따라 평가하였다. 학습성과 성취는 시뮬레이션 실습이 끝난 후 디브리핑 시간 동안 학생이 작성한 보고서를 평가자가 학습성과 평가도구를 이용하여 평가하였다. 자료 분석은 SPSS/WIN 22.0 Program을 이용하여 실수, 백분율, 평균, 표준편차, X²-test, one-way ANOVA, Pearson correlation, progressive regression으로 분석하였다. 연구결과, 평가자에 의해 측정된 객관적 응급간호 임상수행능력은 임상실습만족도와 부정적인 상관관계가 있었으며(r=-.31, p=.005) 간호학생이 평가한 주관적 응급간호 임상수행능력과 긍정적인 상관관계가 있었다(r=.23, p=.036). 회귀분석 결과, 설명력은 12%로 나타나 시뮬레이션 상황에서 응급간호 임상수행능력을 전반적으로 설명하기에는 다소 부족하였으므로 추후 연구에서는 응급간호 임상수행능력에 영향을 미칠 수 있는 다른 요인에 대한 탐색이 요구된다.

• 한국자동차공학회논문집
• /
• 제11권5호
• /
• pp.147-155
• /
• 2003

The application of object-oriented modeling to develop a powertrain performance simulation program, called O-DYN, is introduced. Powertrain components, such as the engine, transmission, shaft, clutch are modeled as classes which have data and method by using object-oriented modeling methodology. O-DYN, a performance simulation program, based on the object-oriented modeling is made in C++. One powertrain simulation using O-DYN is proposed, and it is expected that the simulation program or individual class constructed in this paper would be useful for automotive engineers to predict the performance of powertrains and to develop a simulation program.

• 한국경영과학회지
• /
• 제22권4호
• /
• pp.1-16
• /
• 1997

The cell loss probability recommended in the B-ISDN is in the range $10^{-8}~10^{-12}$. When a simulation technique is used to analyze the performance of the ATM node, an enormous amount of computer processing time is required. In this study, we derive an importance sampling simulation technique that can be used to evaluate the performance of the ATM node very quickly, that is, the probability that the queue size at the ATM node reaches some large value N. The simulation results show that the backlog probability obtianed by the importance saimpling simulation is very close to that obtained by the ordinary simulation and the computer time can be reduced drastically by the importance sampling simulation.

• 한국자동차공학회논문집
• /
• 제5권1호
• /
• pp.195-206
• /
• 1997

In this study, a simulation tool is developed in order to investigate non steadystate cornering performance of 4WD/4WS vehicles. The 4WD/4WS vehicles are modeled as a 8-th order dynamic system which includes complex non-linear vehicle dynamics and tire models. The vehicle models are constructed into a modulated simulation tool and are utilized for analyzing cornering performance such as combined braking and steering, cornering on the icy read and $\mu$-split braking, The whole analysis is done with the simulation tool which consists of a number of subsystems and offers graphic environment. Simulation results show that this tool is useful and cost-effective in the dynamic analysis of the combustion-engine vehicles as well as electrically driven vehicles.

• 한국콘텐츠학회논문지
• /
• 제17권11호
• /
• pp.577-587
• /
• 2017

본 연구의 목적은 시뮬레이션 실습교육이 간호대학생의 임상판단력, 자신감, 임상수행능력에 영향을 미치는 효과를 파악하고자 실시되었으며 단일군 사전-사후 실험연구이다. 연구 대상자는 S지역에 소재한 간호학과 2학년 시뮬레이션 실습교과목을 수강한 45명의 학생으로 자료는 설문지를 이용하여 시뮬레이션 실습교육 전 후에 수집되었다. 연구결과 임상판단력, 자신감, 임상수행능력 모두가 통계적으로 유의미하게 향상되었다. 그러므로 시뮬레이션 실습교육이 간호대학생의 임상판단력과 자신감, 임상수행능력에 미치는 긍정적인 효과를 확인하였다. 추후 임상판단력, 자신감, 임상수행능력을 향상시킬 수 있는 시뮬레이션 실습교육의 모듈 개발 및 효과를 검증할 수 있는 연구가 필요하다고 사료된다.

• 한국군사과학기술학회지
• /
• 제15권5호
• /
• pp.687-698
• /
• 2012

LADAR systems can rapidly acquire 3D point clouds by sampling the target surfaces using laser pulses. Such point clouds are widely used for diverse applications such as DSM/DTM generation, forest biomass estimation, target detection, wire avoidance and so on. Many kinds of LADAR systems have been developed with their respective purposes and applications. Particularly, Geiger mode imaging LADAR systems are increasingly utilized since they are energy efficient thank to extremely sensitive detectors incorporated into the systems. The purpose of this research is the performance assessment of a Geiger mode imaging LADAR system based on simulation with the real system parameters. We thus developed a simulation method of such a LADAR system by modeling its geometric, radiometric, optic and electronic aspects. Based on the simulation, we performed the performance assessment of a newly designed system to derive the outlier ratio and false alarm rate expected during its operation in almost real environment with reasonable system parameters. The proposed simulation and performance assessment method will be effectively utilized for system design and optimization, and test data generation.

• 한국응급구조학회지
• /
• 제18권3호
• /
• pp.91-104
• /
• 2014

Purpose: This study aimed to confirm the effects of a simulation-based program on knowledge and clinical performance in the post-operative management of emergency patients. Methods: This was a pre- and post-research design with a nonequivalent control group and randomly sampled 29 experimental and control groups, respectively from nursing department juniors for 4 weeks from September of 2014. The experimental group received lectures, team study, team simulation, and debriefing in post-operative management of simulation-based emergency patients and control group conducted in the traditional lecture-type setting. Educational learning effects were measured by using the knowledge and clinical performance measurement tools of 15 and 20 items, respectively. Data were analyzed by using the SPSS program, including frequency, ratio, and results from the Chi-square test, Fisher's exact test, Kolmogorov-Smirnov test, t-test. Results: Our research results indicate that, the experimental group showed significantly higher knowledge and clinical performance score compared with the control group. Conclusion: We confirmed that education on post-operative management of simulation-based emergency patients was an effective educational method to improve the knowledge and clinical performance of nursing students.

• 설비공학논문집
• /
• 제15권6호
• /
• pp.471-479
• /
• 2003

A simulation on the performance of a transcritical $CO_2$ heat pump system is carried out to investigate its characteristics for various operating conditions. Cycle simulation models are established for a steady-state simulation and are verified by comparing experimental data. Based on correlations and methods available in the literature, the processes in individual components of the transcritical cycle are simulated to analyze the performance of $CO_2$ transcritical heat pump system. The simulation models are good enough to predict the performance of a $CO_2$ transcritical cycle. Simulation results are provided to show the relative effects when varying the size of internal heat exchanger and the discharge pressure of a compressor.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2004년도 추계학술대회 논문집
• /
• pp.203-206
• /
• 2004

Recently home network has been developed in the field of Information Technology. And there are many protocols for smart home, such as Lonworks, Echonet, KNX, LnCP etc. However, the performance evaluation has not been nearly known between the protocols. Hence, this paper evaluates the performance of KNX by Konnex Association and LnCP(Living network Control Protocol) by LG Electronics. We developed simulation model using flowchart of KNX and LnCP and simulation scenario through analysis of message to be generated in the home network. Furthermore, we evaluate simulation performance, such as mean transmission delay, maximum transmission delay, and collision rate of both protocols.

• 설비공학논문집
• /
• 제22권6호
• /
• pp.353-360
• /
• 2010

Recently H1N1(swine flu) and SARS has been infected widely in the world; we have to care about germs and virus in indoor air environment. The air sterilization system investigated in this study allows occupants to turn on/off and to control the incoming air speed and direction. To predict the performance of air sterilization system without real experiment, a simulation is considered to compare and analyze the performance of the air sterilization systems in a typical office space. Multiple system parameters including volume flow rate and velocity of supply air were varied and investigated during the simulation. The investigation result shows that difference (between simulation and experiment) was about 3.5% in case of minimum air flow rate and about 0.2% in case of maximum air flow rate. The results indicate that multi-zone simulation technique can be used to predict the performance of a sterilization system in personalized office.