• Title/Summary/Keyword: self-sustaining

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Experimental study on self-sustaied $1kW_e$ liquid fuel reforming operation (자립형 $1kW_e$ 액체 연료 개질기 운전에 관한 연구)

  • Yoon, Sang-Ho;Bae, Gyu-Jong;Bae, Joong-Myeon
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.05a
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    • pp.503-506
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    • 2008
  • Liquid hydrocarbon fuels, such as gasoline, kerosene, diesel and JP 8, can be good candidates for SOFC (solid oxide fuel cell) system fuel due to their high hydrogen density. Autothermal reforming (ATR) is suitable for liquid hydrocarbon fuel reforming because oxygen can decompose the aromatics in liquid fuel and steam can suppress the carbon deposition during catalytic reaction. The advantage of ATR is that it has a simple system construction due to exothermicity of ATR reaction. We control the exothermicity of reaction, make the reaction possible design a self-sustaining ATR reactor. A self-sustained 1kW-class kerosene autothermal reformer is introduced in this paper. The 1kW-class kerosene reformer was continuously operated for about 140 hours without degradation of reforming performance.

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Sustaining the Use of Quantified-Self Technology: A Theoretical Extension and Empirical Test

  • Ayoung Suh
    • Asia pacific journal of information systems
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    • v.28 no.2
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    • pp.114-132
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    • 2018
  • Quantified-self technologies (QSTs) provide functions for users to collect, track, and monitor personal data for self-reflection and acquisition of self-knowledge. Although QSTs require prolonged use to reap the attendant benefits, many users stop using their devices or tracking within weeks or months. To address this issue, this study seeks to determine ways to sustain the use of QSTs. Combining motivational affordance theory with technology continuance theory, this study develops a theoretical model that accounts for an individual's continued intention to use a QST. Within the proposed model, unique QST affordances were identified as antecedents of individual motivation in relation to technology continuance, and their different roles in stimulating hedonic, utilitarian, and eudaimonic motivations were examined. The model was tested using data collected from 180 QST users. Results demonstrate that although utilitarian and eudaimonic motivations are complementary forces in determining continuance intention, hedonic motivation loses its predictive power in favor of eudaimonic motivation. Tracking, visualizing, and sharing affordances play different roles in elevating user motivations. The sharing affordance does not influence utilitarian and eudaimonic motivations, but it positively influences hedonic motivation. This research contributes to the literature on technology continuance by shifting scholarly attention from hedonic-utilitarian duality to eudaimonic motivation, characterized by meaning, self-growth, and pursuit of excellence.

The Problems and the Improvement Plan of the Hospice/Palliative Care and Dying Patient's Decisions on Life-Sustaining Treatment Act (연명의료결정법의 문제점 및 개선 방안)

  • Kim, Myunghee
    • Journal of Hospice and Palliative Care
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    • v.21 no.1
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    • pp.1-8
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    • 2018
  • Nearly 20 years after the Boramea Hospital case, the act on decisions on life-sustaining treatment for patients in hospice and palliative care or at the end of life has taken effect on February 4, 2018 as recommended by the National Bioethics Committee. However, during the legislation process, some parts of the bill that stakeholders and concerned parties did not see eye to eye were either revised or removed. Moreover, the hospice and palliative care part was added in the last minute before the enactment. As a result, the law includes parts that are not in line with the recommendations from the National Bioethics Committee, thereby causing various problems. Therefore, it is crucial to monitor how the decisions on life-sustaining treatments are made in the field and gather various opinions of concerned parties to identify and address problems in the early stage of the implementation of the law. Based on the data, the legislation must be amended to fulfill its purpose that is "to protect the dignity and value of human beings by assuring the best interests of the patients and by respecting their self-determination".

Text Network Analysis of Newspaper Articles on Life-sustaining Treatments (연명의료 관련 신문 기사의 텍스트네트워크분석)

  • Park, Eun-Jun;Ahn, Dae Woong;Park, Chan Sook
    • Research in Community and Public Health Nursing
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    • v.29 no.2
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    • pp.244-256
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    • 2018
  • Purpose: This study tried to understand discourses of life-sustaining treatments in general daily and healthcare newspapers. Methods: A text-network analysis was conducted using the NetMiner program. Firstly, 572 articles from 11 daily newspapers and 258 articles from 8 healthcare newspapers were collected, which were published from August 2013 to October 2016. Secondly, keywords (semantic morphemes) were extracted from the articles and rearranged by removing stop-words, refining similar words, excluding non-relevant words, and defining meaningful phrases. Finally, co-occurrence matrices of the keywords with a frequency of 30 times or higher were developed and statistical measures-indices of degree and betweenness centrality, ego-networks, and clustering-were obtained. Results: In the general daily and healthcare newspapers, the top eight core keywords were common: "patients," "death," "LST (life-sustaining treatments)," "hospice palliative care," "hospitals," "family," "opinion," and "withdrawal." There were also common subtopics shared by the general daily and healthcare newspapers: withdrawal of LST, hospice palliative care, National Bioethics Review Committee, and self-determination and proxy decision of patients and family. Additionally, the general daily newspapers included diverse social interest or events like well-dying, euthanasia, and the death of farmer Baek Nam-ki, whereas the healthcare newspapers discussed problems of the relevant laws, and insufficient infrastructure and low reimbursement for hospice-palliative care. Conclusion: The discourse that withdrawal of futile LST should be allowed according to the patient's will was consistent in the newspapers. Given that newspaper articles influence knowledge and attitudes of the public, RNs are recommended to participate actively in public communication on LST.

Review on Advance Directives (생명연장술 사전선택(Advance Directives) 개념 정립을 위한 문헌 고찰)

  • 김신미;김순이;이미애
    • Journal of Korean Academy of Nursing
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    • v.31 no.2
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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.

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A Study on Development of Effective Organ Donation Education and Public Relations Message: Focusing on Personal Characteristics and Value Factors (효율적인 장기기증 교육·홍보 메시지 개발을 위한 연구: 개인적 특성 및 가치요인을 중심으로)

  • Sun, Hye-Jin
    • The Journal of the Korea Contents Association
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    • v.17 no.7
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    • pp.170-181
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    • 2017
  • The purpose of this study is to provide a more persuasive organ donation campaign based on the understanding of the public based on the personal characteristics and value factors of various age groups. The influence of personal characteristics and value factors (organ donation attitude, organ donation knowledge, self - efficacy, internal medicine, attitude toward discontinuation of life - saving treatment) on the intention of organ donation among 20s to 60s or older was examined. Demographic variables that were predicted to affect individual behavioral intentions such as gender, age, and religion were included. The value factors were also included attitudes toward life-sustaining treatment and afterlife view to identify potential factors. The results showed that attitude toward organ donation, knowledge of organ donation, self-efficacy, attitudes toward life-sustaining treatment had a significant positive effect on organ donation intention.

An Evaluation on the Cultural Sustainability of the Korean Traditional Village -The Case of Sonwon-ri Village in Youngchon- (전통마을의 문화지속성 평가 -경북 영천 선원리를 대상으로-)

  • 고석철;장병관
    • Journal of the Korean Institute of Landscape Architecture
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    • v.29 no.6
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    • pp.1-10
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    • 2002
  • The purpose of this study is to establish a model of cultural sustainability in the traditional village. Cultural sustainability is being advanced by promoting the viability of traditional arts and the unique regional features of traditional culture, such as folklore, traditional landscapes, buildings and other environments of outstanding historical value. These cultural resources were also created or occurred at specific geographic locations at certain points in time by different individuals. The content of this study was to develop a model using indicators for cultural sustainability, and to apply and evaluate the model. In older to evaluate the model, Sonwon-ri village in Yongchon, located in Kyungsangbuk-do, was selected as the case study area. The major findings are as follows: 1) Sonwon-ri village has maintained the vernacular landscape except at the entrance of village. Also, the village people have pride and have adapted to the natural environment. 2) Sonwon-ri village has a self-sustaining system and circular network within its environmental capacity. Sonwon-ri village has many historical sites and buildings such as important folk resources, cultural assets, traditional houses and pavilions. 3) The people how the theory of fens-shui which interprets the location of village in relationship to a crane mountain with the village situated as a crane head. These symbolic and cultural elements have an important role in establishing the boundary of the village. From the research it can be seen that Sonwon-ri village kept many cultural sustainability indicators in terms of active factors, physical factors and psychological factors. By analysing the participation of different scientific disciplines and identifying disciplinary categories, this study provides a basis for understanding how cultural sustainability is subjected to research in the field of landscape planning and design.

Review and Interpretation of Health Care Laws Based on Civil Law (보건의료관련 법령의 동의에 관한 민법적 검토)

  • Yi, Jae Kyeong
    • The Korean Society of Law and Medicine
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    • v.23 no.4
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    • pp.75-102
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    • 2022
  • In this article, 「Act on the hospice and palliative care and decisions on life-sustaining treatment for patients at the end of life」, 「Act On The Improvement Of Mental Health And The Support For Welfare Services For Mental Patients」, 「Organs Transplant Act」, 「Safety And Management Of Human Tissue Act」, 「Pharmaceutical Affairs Act」, 「Prevention Of Acquired Immunodeficiency Syndrome Act」, 「Tuberculosis Prevention Act」, 「Infectious Disease Control And Prevention Act」 were reviewed. Patients' right to self-determination and consent in these laws are related to civil law. even though they are closely related to the civil law in relation to patients' right to self-determination and consent. In order to consistently operate medical administration, it is necessary to understand the principles of civil law decision-making.

Participation and Influencing Factors in the Decision-Making of Life-Sustaining Treatment: A Focus on Deceased Patients with Hematologic Neoplasms

  • Jae Eun Jang;Jeong Moon Ryu;Min Hee Heo;Do Eun Kwon;Ji Yeon Seo;Dong Yeon Kim
    • Journal of Hospice and Palliative Care
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    • v.26 no.2
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    • pp.69-79
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    • 2023
  • Purpose: This study aimed to investigate the involvement of patients who died from hematologic neoplasms in the decision-making process surrounding the withdrawal of life-sustaining treatment (LST). Methods: A total of 255 patients diagnosed with hematologic neoplasms who ultimately died following decisions related to LST during their end-of-life period at a university hospital were included in the study. Data were retrospectively obtained from electronic medical records and analyzed utilizing the chi-square test, independent t-test, and logistic regression. Results: In total, 42.0% of patients participated in the decision-making process regarding LST for their hematologic neoplasms, while 58.0% of decisions were made with family involvement. Among these patients, 65.1% died in general wards and 34.9% in intensive care units (ICUs) as a result of decisions such as the suspension of LST. The period from the LST decision to death was longer when the decision was made by the patient (average, 27.15 days) than when it was made by the family (average, 7.48 days). Most decisions were made by doctors and family members in the ICU, where only 20.6% of patients exercised their right to make decisions regarding LST, a rate considerably lower than 79.4% observed in general wards. Decisions to withhold or withdraw LST were more commonly made by patients themselves than by their families. Conclusion: The key to discussing the decision to suspend hospice care and LST is respecting the patient's self-determination. If a patient is lucid prior to admission to the ICU, considerations about suspending LST should involve the patient input.

The Lived Experience of Children of Alcohol Dependent Fathers (알코올중독 아버지와 사는 자녀의 경험에 관한 연구)

  • Kim Myung Ah
    • 한국보건간호학회:학술대회논문집
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    • 2002.10a
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    • pp.224-227
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    • 2002
  • Alcoholism affects not only the individuals who depend on it, but also their families. Children who have an alcohol dependent parent have various problems and need help, but little attention has been given to them. Many references report only negative characteristics of these children. In order to help the children of alcohol dependent parents, health professionals need more information. A wholistic understanding and analysis of these children is needed as a basis for the development of suitable programs of help them. A phenomenological methodology was used to identify the experience of children whose fathers were addicted to alcohol. The findings portray the essence of the lived experience of children of alcohol dependent fathers. Nine adolescents participated in in-depth inverviews and observation with the researcher, done between October and December 2001. The data were recorded on audio tape and transcribed. Sampling was continued until the data were theorectically saturated. The Colaizzi's method was used for data analysis. The results of this study are as follows. Three themes and twenty six meanings were identified. The first theme is Living Alone: living abusively as partner to an alcohol dependent father, living dangerously like an explosive fury, living as an object that ha no self, living with rejection of fatherly being, living with felt responsibility but having no power to help mother who suffers patiently with pain and abuse, living along with no shoulder to lean on, and living with the prejudice of sex discrimination. The second theme is Paradoxical Coping in Life. The meanings are obsessive behavior as a way to control father's behavior, always on the defensive due to anxiety and tension, being afraid of life alone due to paranoid thoughts, contradictory expectation about father's drinking behavior due to life with chronic tension, stress becoming familiar and life being boring and tendious without stimulation, life that is fake and filled with misinterpretations about reality, affection sought from others due to loneliness, compensatory life within peer group, negative expectation about the future due to negative experiences, controling others to protect ego, denial of real emotion to protect self from hurt, life of regretting self, and strong need for approval from others. The third theme is sustaining life. The meanings are ambivalence between revenge on father and pity, struggle for desirable self against fear of gather-like image, understanding father through self reflection, hope to find fatherly being through father's recovery, being able to stand through emotional control and cognitive restructuring, nurturing the seed of hope for the future while in a situation of desperation. The contribution of this study is to give a wholistic understanding of the empirical reality of children of alcohol dependent parents and to develop substantive theory in nursing knowledge. In nursing practice, the results of this study can provide a foundation for the development of programs for children of alcohol dependent parents.

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