• Journal of Korean Academy of Nursing
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• v.40 no.4
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• pp.599-609
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• 2010

Purpose: The purpose of this study was to develop and evaluate a transitional care program for patients discharged from military hospitals. The study consists of two phases: developing the program and evaluating its effectiveness. Methods: The conceptual framework used to guide the development of the program was Meleis's transition theory. A quasiexperimental design was employed for this study. Participants were recruited from patients discharged from one military hospital, 72 in the control group and 56 in the experiment group. Data were analyzed using SPSS WIN 12.0 program with chi-square, Fisher's exact test, independent t-test, and mixed model. Results: Participants in the transitional care program reported promoting a positive personal condition, and more healthy patterns of response in the first week after being discharged and a smoother discharge transition. Conclusion: The transitional care program developed for discharge patients from military hospital promoted discharge readiness and promoted smooth discharge transition.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2011.04a
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• pp.73-76
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• 2011

The hot-firing tests of a subscale gas generator were successfully performed to investigate the effect of injector shape variation on discharge coefficients. The test results showed that discharge coefficients of fuel and liquid oxygen injectors remained nearly constant irrespective of variations of a mixture ratio and a chamber pressure. Especially, the discharge coefficient of the liquid oxygen injector was largely increased compared to the previous works.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.26 no.4
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• pp.524-530
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• 2002

Micro electric spark discharge device was fabricated on a FOTURAN glass wafer using MEMS processing technique and its performance of electron discharge and subsequent formation of ignition kernel were tested. Micro electric spark device is an essential subsystem of a power MEMS that has been under development in this laboratories. In a combustion chamber of sub millimeter scale depth, spark electrodes are formed by electroplating Ni on a base plate of FOTURAN glass wafer. Optimization of spark voltage and spark gap is crucial for stable ignition and endurance of the electrodes. Namely, wider spark gaps insures stable ignition but requires higher ignition voltage to overcome the spark barrier. Also, electron discharge across larger voltage tends to erode the electrodes limiting the endurance of the overall system. In the present study, the discharge characteristics of the proptotype ignition device was measured in terms of electric quantities such as voltage and currant with spark gap and end shape as parameters. Discharge voltage shows a little decrease in width of less than 50㎛ and increases with electrode gap size. Reliability test shows no severe damage over 10$\^$6/ times of discharge test resulting in satisfactory performance for application to proposed power MEMS devices.

• Fire Science and Engineering
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• v.19 no.2 s.58
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• pp.29-36
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• 2005

We carried out discharge and fire extinguishing tests of new inert gas clean agent, which consists of $92\%$ nitrogen and $8\%$ carbon dioxide, as an alternative of Halon that is banned by Montreal Protocol to protect the ozone layer of the earth. Discharge and fire extinguishing tests were performed in $27m^3$ and $190m^3$ rooms with piping which allows gaseous agent to transport from storage to test rooms. We confirmed that it took less than regulation time, 60 seconds for the discharge of over $95\%$ initial charged amounts. Discharge test variables were piping length and orifice size. Fire extinguishing tests verified that this new inert gas clean agent is suitable for both n-Heptane fire and deep seated fire of wood crib.

• Child Health Nursing Research
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• v.16 no.4
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• pp.344-351
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• 2010

Purpose: This study was done to examine effects of a discharge education program using on-line community on parenting stress, baby care confidence for mothers of premature infants and health problem of premature infants. Methods: Using a non-equivalent control group pretest-posttest quasi-experimental design, 32 participants were assigned to an experimental (17) or a control group (15). Mothers in the experimental group were introduced to the discharge education program 2 weeks before the baby was discharged. They participated in the on-line community for 4 weeks after discharge. Parenting Stress Index and Baby Care Confidence Scale were utilized for data collection. Data were analyzed using descriptive statistics, $X^2$-test, Fisher's exact test, and Mann-Whitney U test with the SPSS program 16.0 version. Results: In the experimental group, mean scores for parenting stress were lower than for the control group (Z=-3.176, p=.001), while scores for confidence in baby care were higher than for the control group (Z=-3.195, p=.001). Conclusion: Findings indicate that discharge education programs using on-line community have the positive effect of decreasing parenting stress and increasing baby care confidence for mothers and decreasing health problems for infants. Therefore utilization of the internet and online community to educate parents of premature infants is recommended.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.22 no.4
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• pp.235-240
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• 2010

The foam produced by the effluent cooling water which is released to the discharge channel provokes civil complaints due to the visual pollution to the neighboring residents. In this study, a physical model test was conducted by placing tetrapods on the bottom slope of the discharge channel in order to suggest an effective method of reducing the amount of generated foam. Field application of the main results of the model test showed qualitatively apparent reduction of the foam generation at the discharge channel.

• Proceedings of the KIPE Conference
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• 1998.07a
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• pp.433-437
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• 1998

Equalize SOC of the cell which effect on the charge.discharge ability and the efficiency of the battery, through the charge.discharge characteristic test of the battery source, and develope the high efficiency charge.discharge system in the series HEV have a constant engine-generator output. For this, in this paper, establish the electrical model and the condition of high efficiency charge.discharge, and proposed the improvement method of charge.discharge characteristic in the battery source that consist of twenty Ni-MH cells connected serial/parallel

• Journal of Korea Water Resources Association
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• v.54 no.2
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• pp.135-144
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• 2021

This paper attempted to find implications for water resource management and water quality improvement by analyzing the causal relationship among discharge, water temperature and pollution index, which were expected to have a great effect on water quality with the rise of water temperature and precipitation change as the warming effect in recent years. For this purpose, the unit root test, cointegration test, and Granger causal test were carried out for 10 multi-purpose dams in Korean major water systems using time series data on discharge, water temperature, BOD, COD and DO. It was analyzed that the fluctuation of water temperature affected the pollution index more than the fluctuation of discharge volume. Also, Hapcheon dam and Chungju dam were the best water quality management dams based on the high causal relationship between water quality and discharge. The second rank was Daecheong dam. The third-ranking group were Yongdam and Andong dam, whose causal relationships between water quality and discharge were low. The last group were the remaining five dams.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.20 no.2
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• pp.168-175
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• 2008

In this study, we estimated the discharge capacity of Solicheon sluice gate in Gunjang national industrial complex by hydraulic physical scale model test and FLOW-3D. It was showed that the discharge capacity of gate carried by physical model test and numerical analysis was similar.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.10
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• pp.1875-1880
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• 2011

This paper proposes a battery model applicable to Autonomie environment. Also, a various of experiment is implemented for validation. The proposed battery model modifies Randles equivalent circuit and battery parameters are extracted from pulsed current tests. The parameters are two-dimensional function of current and SOC(State of Charge). The battery model is developed in the Matlab/Simulink and is implemented for NiMH Panasonic HHR650D and compared with pulsed current discharge curves. The simulation results validate the accuracy of the proposed model and the model is also tested by adding it on Autonomie for HEV application. Constant current charge/discharge, pulsed current test that can be used to extract battery parameter are performed and test results are used to build up the proposed battery model for Autonomie.