• 융합정보논문지
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• 제11권1호
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• pp.45-53
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• 2021

본 연구는 만성 심폐질환을 가진 말기 노인환자를 대상으로 연명의료결정 전후에 제공된 완화간호의 빈도와 변화를 파악하기 위한 후향적 조사 연구이다. 일개 대학병원 내과계 병동에 입원한 말기 심폐질환 노인환자 124명의 전자 의무기록을 조사한 결과, 연명의료결정 이후에 경구진통제 투여, 통증 경감을 위한 냉온요법과 마사지요법, 요로감염 시 약물투여와 소변 배양검사, 구강간호, 세발간호, 부분목욕의 제공은 유의하게 감소한 것으로 나타났다. 통증 경감을 위한 기도 및 이완요법, 호흡곤란 시 구·비강간호, 정서적 간호 제공은 연명의료결정 전후에 유의한 차이가 없었으며, 영적 간호는 전체적으로 가장 적게 제공된 것으로 나타났다. 따라서 심폐질환을 가진 말기 노인환자를 대상으로 연명의료결정 이후에 비약물적 통증관리와 안위간호의 개선이 필요하겠다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2005년도 전력전자학술대회 논문집
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• pp.445-448
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• 2005

PDP 유지전원단을 위한 고효율을 갖는 새로운 페이지 쉬프트 풀브릿지 컨버터를 제안한다. 제안된 컨버터는 Rectifier로 Voltage Doubler를 사용함으로서, 큰 사이즈의 Output Inductor가 없게 되어 간단한 구조를 가지게 되며 Rectifier Diodes의 전압 스트레스가 출력전압으로 클램핑되어서 스너버회로가 필요없다는 장점을 가지게 된다. 또한 넓은 영전압 스위칭 구간을 가지며, 트랜스포머의 기생성분인 Leakage 인덕터와 Voltage doubler의 캐패시터간의 공진을 이용함으로서 전류가 작은 RMS값을 가지게 되어서 낮은 도통손실과 Rectifier Diode의 전류 스트레스 또한 낮다는 장점을 가지게 된다. 본 논문을 통해 제안된 컨버터의 동작원리와 해석, 실험을 수행하였다.

• 한국간호교육학회지
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• 제19권3호
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• pp.330-340
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• 2013

Purpose: This study was performed to identify the level of Korean elderly's knowledge regarding concepts of end-of-life (EOL), Life-sustaining-treatment (LST), and advance directives (AD) which are critical aspects for establishing AD in Korean society. Methods: A questionnaire survey was done between October 2011 and February 2012. Knowledge of AD was evaluated with 3 aspects including EOL, LST, and AD utilizing a questionnaire that was developed by authors for the study. Data were collected from 268 community dwelling elderly from three cities and analyzed using descriptive statistics, t-tests, one-way analysis of variance, and a Scheffe post hoc test with SAS Ver. 9.1 program. Results: Overall, Korean elderly were poorly acquainted with AD related concepts. Significant differences in awareness of AD including understanding of EOL, the level of comprehension of LST, and knowledge about AD were revealed by gender, education level, economic state, and acquaintance with terms of AD or LST. Conclusion: To acknowledge autonomy and support quality of life for elderly and to meet the purpose of AD, attention should be given to target populations including elderly in terms of knowledge level related to AD, social marketing, and infra structure relevant to practice AD in our society.

• International Journal of Automotive Technology
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• 제7권7호
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• pp.785-793
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• 2006

The topic of this study is the control strategy of a mild hybrid electric vehicle (HEV) equipped with a continuously variable transmission (CVT). A brief powertrain and vehicle configuration is introduced followed by the control strategy of the HEV with emphasis on two key parts. One of them is an ideal operating surface (IOS) that operates the CVT powertrain optimally from the viewpoint of the tank-to-wheel efficiency. The other is a charge sustaining energy management to maintain the battery state of charge (SOC) within an appropriate level. The fuel economy simulation results of the HEV over standard driving cycles were compared with those of the baseline vehicle. Depending on the driving cycle, 1.3-20% fuel saving potential is predicted by the mild hybridisation using an integrated starter alternator (ISA). The detailed energy flow analysis shows that the majority of the improvement comes from the idle stop function and the benefits for electrical accessories. Additionally, the differences between the initial and the final SOC are in the range $-1.0{\sim}+3.8%$ in the examined cycle.

• 대한간호학회지
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• 제31권2호
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• pp.279-291
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• 2001

Rapid progress in modern medical technology has made it possible to sustain life and/or delay death using 'heroic' treatments. The availability of life-sustaining treatment brings several issues in end-of-life care such as 'dying with dignity' and an radical increase in health care costs. The use of Advance Directives(AD) have been widely heralded by health care providers, gerontologists, and advocacy groups as means of protecting patients' right to accept or refuse life-sustaining treatment in end-of-life care. The use of AD can not only improve patients' autonomy and quality of life but also bring efficiency in distributing health care resources. The proportion of older persons in Korean population has been increasing. Those 65 years of age or over were about 7 percent of the population. Death and dying is not limited to older persons, but it is more prevalent among them. In conjunction with an aging population and the increasing prevalence of death, the issues of death and dying will become crucial in near future in terms of 'dying with dignity', 'autonomy', and 'self-control'. This paper attempts to explode and establish the concept of advance directives (AD) based on literature review. Data sources are computer searches with the MEDLINE database. Due to the lack of prior study on AD for a Korean cases, studies abroad are reviewed. This paper suggests the need for future study on the possibility of the use of AD in Korea.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2001년도 추계학술대회(한국공작기계학회)
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• pp.202-206
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• 2001

The purpose of this research was to study the influence of machining characteristics for aluminum alloys. The effect of metallic microstructural variables on the measures of machinability of aluminum alloys has no been adequately investigated. Machining Characteristics are influenced significantly by mechanical characteristics, composition and structure of material etcs. For improvement of machining characteristics, various studies are reported. In this paper, composition elements add to aluminum alloys within the limit of sustaining mechanical characteristics of metallic material. We have analyzed dynamic characteristics of cutting resistance, tensile strength value, hardness value etcs.

• 융복합기술연구소 논문집
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• 제4권2호
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• pp.67-70
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• 2014

Recently EU has been recognized that there is a difference of emission quantity between emission certification test mode and real-road driving test. Accordingly the European Commission is currently preparing to require real-road testing as part of the passenger car type-approval process in the EU. vehicle manufacturers from 2017 are expected to test new vehicles not only under laboratory conditions but also on the real-road, using PEMS equipment. Therefore the purpose of this study is to analyze the emission and Fuel Economy of CVS-75 mode test using chassis dynamometer and RDE test using PEMS equipment by PHEV passenger car.

• 정보저장시스템학회논문집
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• 제3권2호
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• pp.54-58
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• 2007

Using metal/Si materials as a recording layer, we have achieved good results for a SR disc (super resolution disc). Mainly by controlling metal composition and the ratio of metal to Si of recording layer, signal qualities were greatly enhanced. At the mark length of 75nm, the best CNR (Carrier to Noise Ratio) was about 45dB. Write power was reduced down to about 6.5mW. LFN (Low Frequency Noise) could also be reduced down to 14dB. Single tone pattern jitters for every mark whose length is from 2T through 8T were achieved to be below 10%. The readout signal was stable sustaining CNR>40dB during about 15,000 times reading. The so-called "3T-problem" could be avoided.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2005년도 전력전자학술대회 논문집
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• pp.399-401
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• 2005

A new high performance energy-recovery circuit (ERC) for a plasma display panel (PDP) is proposed. Two different ERCs are employed on both sides of the PDP, and slow falling and fast rising times are applied. It features a zero voltage switching (ZVS), low electromagnetic interference (EMI), low current stress, high efficiency, no severe voltage notch, reduced sustaining voltage, and high energy-recovery capability.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2005년도 추계학술대회
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• pp.228-248
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• 2005

This paper suggests the concept of the innovation management. Above all it is important to make excellent application of the management for the S&T Research Council and Government Sponsored Research Institutes. This paper will discuss three critical issues that is, the first, what makes clear a point of different strategy for the organizational and the technological innovation focused organization. Second, how makes containing the environmental factors and the target of the innovation into the innovation management strategy. Third, how achieves the performance through the managing innovation. We present a modified BSC strategy in order to manage innovation and to set up a platform for sustaining to deal with the innovation.