• Title/Summary/Keyword: Sustaining Technology

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Mediating Effects of Role Perception of Life-sustaining Treatment in the Relationship between Knowledge of Life-sustaining Treatment Plans and Attitudes toward Withdrawal of Life-sustaining Treatment among Nursing College Students

  • Park, Youngmi;Nam, Keumhee;Bae, Joohee
    • Journal of Hospice and Palliative Care
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    • v.24 no.1
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    • pp.36-45
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    • 2021
  • Purpose: This study examined the relationship between Knowledge of Life-sustaining Treatment Plans and Attitudes toward Withdrawal of Life-sustaining Treatment among nursing college students, and attempted to identify the mediating effect of Role Perception on Life-sustaining Treatment in that relationship. It is hoped that the findings will ultimately contribute to the development of active nursing strategies. Methods: The participants were 142 nursing college students in the third and fourth years of study who had experienced clinical practice at two universities in cities Y and C. Data were collected from November 1 to 30, 2019. For data analysis, SPSS for Windows version 22.0 was used to calculate descriptive statistics, the t-test, Pearson's correlation coefficients, and multiple regression. To analyze the mediating effect, the Baron and Kenny bootstrapping method was used. Results: Attitudes toward Withdrawal of Life-sustaining Treatment of nursing college students had a significant positive correlation with Knowledge of Life-sustaining Treatment Plans (r=0.34, P<0.001) and Role Perception on Life-sustaining Treatment (r=0.44, P<0.001). Role Perception on Life-sustaining Treatment partially mediated the relationship between Knowledge of Life-sustaining Treatment Plans and Attitudes toward Withdrawal of Life-sustaining Treatment (95% CI, 0.446~1.055). Conclusion: Based on the results of this study, improving nursing college students' Role Perception on Life-sustaining Treatment could be used as a coping strategy to establish positive Attitudes toward Withdrawal of Life-sustaining Treatment.

Low-Cost High-Efficiency PDP Sustaining Driver with a Resonance Bias Level Shift

  • Park, Kyung-Hwa;Yi, Kang-Hyun
    • Journal of Power Electronics
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    • v.13 no.5
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    • pp.779-786
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    • 2013
  • A highly efficient sustaining driver is proposed for plasma display panels (PDPs). When the PDP is charged and discharged, the proposed sustaining driver employs an address voltage source used in an addressing period. A voltage source is used for fully charging the panel to the sustaining voltage, and an initial inductor current helps the panel discharge to 0 V. The resonance between the panel and an inductor is made by shifting the voltage and current bias level when charging and discharging the panel. As a result, the proposed circuit can reduce power consumption, switching loss, heat dissipation, and production cost. Experimental results of a 42-inch PDP are provided to verify the operation and features of the proposed circuit.

Single Sustaining Driver for AC-PDP employing Voltage Stress Reduction Technique (전압 스트레스 저감 기법을 적용한 AC-PDP를 위한 단일 유지 구동 회로)

  • Park Ki-Bum;Choi Seong-Wook;Kim Chong-Eun;Moon Gun-Woo;Youn Myung-Joong
    • Proceedings of the KIPE Conference
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    • 2006.06a
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    • pp.88-90
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    • 2006
  • Conventional sustaining driver (SD) of plasma display panel (PDP) employing auxiliary circuits on both side of a H-bridge inverter increases volume of PDP with cost. To solve this problem, a new single sustaining driver (SSD), which utilize only one side of auxiliary circuit is proposed. Moreover, using the voltage stress reduction technique (VSRT), the proposed SSD effectively reduces switch voltage stress with a simple structure.

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Factors Influencing Attitude toward Withdrawal of Life-Sustaining Tratment among Nursing Students (간호대학생의 연명치료중단 태도에 미치는 영향요인)

  • Yang, Seung-Ae
    • Journal of Convergence for Information Technology
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    • v.10 no.12
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    • pp.226-235
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    • 2020
  • This study aimed to identify the integral factors influencing the attitudes of nursing students toward withdrawal of life-sustaining treatments. Methods: 139 nursing students were selected from the school of nursing of a single university. Questionnaires were used as measurement tools to measure their good death recognition, attitude towards death & towards withdrawal of life-sustaining treatment. The degree of good death recognition, attitude towards death & towards withdrawal of life-sustaining treatment were analyzed using descriptive statistics. Correlation between variables was analyzed using Pearson's correlation coefficient and factors influencing the attitude towards withdrawal of life-sustaining treatment using multiple linear regression. Results: Attitude towards withdrawal of life-sustaining treatment was significantly positively correlated with good death recognition(r=.312, p=.000). As a result of multiple linear regression, good death recognition significantly influenced (β=.312, p=.000), accounting for 8.5% of the variance in attitude towards withdrawal of life-sustaining treatment. Conclusions: The results from this study can be contribute to develop educational programs to foster positive attitudes towards withdrawal of life-sustaining treatment.

The effects of death orientation and attitude toward withdrawal of life-sustaining treatment on awareness of biomedical ethics among paramedic students

  • Park, Yunhee;Song, Hyo-Suk
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.2
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    • pp.181-188
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    • 2020
  • This study was conducted to identify the effects of the degree of death orientation, attitudes toward withdrawing life-sustaining treatment, and awareness of biomedical ethics on paramedic students' own biomedical ethics. The participants of this study were 228 paramedic students from a college located in D city. Data were collected from April to June 2019 through a self-report questionnaire. There was a positive correlation between awareness of biomedical ethics and attitude toward withdrawing life-sustaining treatment (r=.63, p<.001). Multiple linear regression analysis showed that the factors affecting students' awareness of biomedical ethics were religion (β=.12, p=.018) and their attitude toward withdrawal of life-sustaining treatment (β=.61, p<.001), with an explanatory power of 41.0%. Educational programs must focus on attitudes toward withdrawing life-sustaining treatment to improve paramedic students' awareness of biomedical ethics.

Nursing students' Awareness of Well-dying, Attitude toward Withdrawal of Life-Sustaining Treatment and Attitude toward Euthanasia (간호대학생의 웰다잉에 대한 인식과 연명치료중단과 안락사에 대한 태도)

  • Kim, Mi-Ja
    • Journal of Industrial Convergence
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    • v.18 no.6
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    • pp.51-59
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    • 2020
  • Although the life-sustaining treatment decision law is in effect, health care worker have many difficulties in determining life-sustaining treatment. Therefore, the relationship between the awareness of well-dying(WD), the attitude toward withdrawal of life-sustaining treatment(AWLST), and the attitude toward euthanasia(AE) for nursing students who will take care of dying patients in the future will be analyzed and used as basic data for bioethics classes. The study period was from April 1 to May 6, 2018, and a survey was conducted on 288 nursing students in D City. As a result of the study, WD was found to have positive (+) correlations with AWLST and AE, while AWLST was positive (+) with active and passive euthanasia. As nurses are expected to experience many ethical conflicts in the life-sustaining treatment process, it is necessary to receive education related to well-dying awareness, bioethics education, and life-sustaining treatment during the nursing student period.

Family Decision-Making to Withdraw Life-Sustaining Treatment for Terminally-Ill Patients in an Unconscious State (의식 없는 말기환자 가족의 연명치료 중단 결정 경험)

  • Kim, Myung-Hee;Kang, Eun-Hee;Kim, Mi-Young
    • Journal of Hospice and Palliative Care
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    • v.15 no.3
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    • pp.147-154
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    • 2012
  • Purpose: The purpose of this study is to understand family members' experience of deciding to withdraw life-sustaining treatments for terminally-ill patients in an unconscious state. Methods: Data were collected by performing an in-depth interview with eight terminally-ill patients' family members who decided to withdraw life-sustaining treatments. Colaizzi's phenomenological method was used for data analysis. Results: Questions were classified into 12 groups and finally into five categories. The five categories were about family members' frustration with patient's condition, emotional preparation for the patient's death upon medical professionals' recommendation, patient's wishes, exhaustion due to caring and past experiences related to life-sustaining treatment. Conclusion: Using the five categories, hospice and palliative professionals could better understand family members' decision making experience of withdrawing life-sustaining treatments for terminally-ill patients. Based on that, the family members could be provided with appropriate counseling and care, which in turn could improve hospice and palliative care intervention.

A Novel Current-fed Energy Recovery Sustaining Driver for Plasma Display Panel(PDP)

  • Han, Sang-Kyoo;Moon, Gun-Woo;Youn, Myung-Joong
    • Journal of Power Electronics
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    • v.4 no.1
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    • pp.39-45
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    • 2004
  • A novel current-fed energy-recovery sustaining driver (CFERSD) for a PDP is proposed in this paper. Its main idea is to recover the energy stored in the PDP or to inject the input source energy to the PDP by using the current source built-up in the energy recovery inductor. This method provides zero-voltage-switching (ZVS) of all main power switches, the reduction of EMI, and more improved operational voltage margins with the aid of the discharge current compensation. In addition, since the current flowing through the energy recovery inductor can compensate the plasma discharge current flowing through the conducting power switches, the current stress through all main power switches can be considerably reduced. Furthermore, it features a low conduction loss and fast transient time. Operations, features and design considerations are presented and verified experimentally on a 1020${\times}$l06mm sized PDP, 50kHz-switching frequency, and sustaining voltage 140V based prototype.

Prototype Development of A 75kW Class Microturbine - Design/Manufacture and Self-Sustaining Test - (분산발전용 75kW급 마이크로터빈의 시제개발 - 설계/제작 및 자력운전 시험 -)

  • Oh, Jongsik;Lee, Heonseok
    • 유체기계공업학회:학술대회논문집
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    • 2002.12a
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    • pp.307-313
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    • 2002
  • In the paper, the prototype development of a 75kW class microturbine for the distributed generation market is partly presented which has continued with the government funding. In the introduction, an overview of the development of microturbines in the world is presented. A series of development procedures are shown with design, manufacture and self-sustaining tests. During the first year, aerodynamic and structural design/analysis, mechanical design are performed for the compressor, the turbine and the combustor. A premixed lean burn combustor technology is used fur the low emission requirements. Foil air bearings and high-speed motors are employed for higher reliability. The self-sustaining conditions have been successfully achieved with the prototype manufactured engine as a preceding operation.

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