• 한국의료질향상학회지
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• 제6권1_2호
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• pp.18-31
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• 1999

• Tuberculosis and Respiratory Diseases
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• 제80권3호
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• pp.304-310
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• 2017

Background: Chronic obstructive pulmonary disease (COPD), is a chronic inflammatory disorder. We evaluated whether white blood cell (WBC) count, is associated with the severity of COPD, independent of other inflammatory conditions, such as metabolic syndrome. Methods: The WBC counts were compared between 1227 COPD patients and 8679 non-COPD adults older than 40. The relationships between the WBC count, lung function, and symptoms score in COPD patients, were determined, using general linear regression analyses. Results: The WBC count was negatively associated with forced vital capacity (FVC, L), FVC (% predicted), forced expiry volume in one second ($FEV_1$, L), and $FEV_1$ (% predicted) in COPD patients. Additionally, the WBC count was independently associated with the quality of life measure, by EQ5D-index score. However, this relationship between WBC count, and disease severity, was not significant in current smokers, because of the confounding effect of smoking, on the WBC count. Conclusion: The WBC count is associated with current smoking status and COPD severity, and a risk factor for poor lung function, and quality of life, especially in non-currently smoking COPD patients. The WBC count can be used, as an easily measurable COPD biomarker.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.98-115
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• 2012

New trend called ubiquitous leads the recent business by standardization and integration. It should be the main issue how to guarantee the integration and accountability on each business, especially in mission critical system which is mainly supported by M2M (Machine to Machine) control mechanism. This study is from the analysis of digital forensics case study that is from the M2M Sensing Control Mechanism problem of the "Imjin River" case in 2009, where a group of family is swept away to death by water due to M2M control error. The ubiquitous surroundings bring the changes in the field of criminal investigation to real time controls such as M2M systems. The needs of digital forensics on M2M control are increasing on every crime scene but we suffer from the lack of control metrics to get this done efficiently. The court asks for more accurately analyzed results accounting high quality product development design. Investigators in the crime scene need real-time analysis against the crime caused by poor quality of mission critical systems. It seems to be every need of Real-Time-Enterprise, so called ubiquitous society on the case. We try to find the efficiency and productivity in discovering non-functional design defects in M2M convergence products focusing on three metrics in study model with quick implementation. Digital forensics system in present status depends on know-how of each investigator and is hard to expect professional analysis on every field. This study set up a hypothesis "Co-working of professional investigators on each field will qualify Performance and Integrity" especially in mission critical system such as M2M and suggests "Online co-work analysis model" to efficiently detect and prevent mission critical errors in advance. At the conclusion, this study proved the statistical research that was surveyed by digital forensics specialists around M2M crime scene cases with quick implementation of dash board.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2001년도 추계학술대회 논문집
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• pp.35-38
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• 2001

This study was conducted a comparative study to identify the differences in service quality between Incheon and Kimpo international Airport and critical factors influencing satisfaction of airport customers. According the results of this study, all service quality factors except the service factor of geographical location of Incheon international airport are better than those of Kimpo international airport. However, all of service quality factors of Incheon airport are evaluated as inferior to those of american, western european and japanese international airports by both the airport visitors and the employees of one korean airliner. In addition the service factors such as response, safety, airport facility and geographical location are found as critical factors influencing satisfaction of the airport visitors and the airliner's employees. Among them the service quality factor of geographical location of Incheon airport is much inferior to that of Kimpo airport comparing with other service quality factors. Thus, the results of this study suggest that the managing team implement TQM and six sigma to enhance the service quality level of the Incheon international airport up to that of the american and western european international airport. Especially, it is strongly required that the Korean governmen deliberate in deciding the geographical location in case of planning new international airport because geographical location is related to not only traffic to airport but also safety of landing, taking off and flying.

• 한국문헌정보학회지
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• 제50권2호
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• pp.271-287
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• 2016

본 연구는 이용자 중심의 도서관장애인서비스 품질요인을 실증적으로 고찰하고자 하였다. 품질요인의 실증적인 고찰을 위해 기존 도서관서비스의 품질 측정도구와 장애인서비스 기준 및 지침을 분석하여 총 9개의 품질요인을 도출하였으며, 이 요인을 활용하여 설문조사와 사례의 질적 평가가 이루어졌다. 조사 결과, 공공도서관 장애인서비스에서 가장 핵심적이며, 또한 상대적으로 취약한 품질요인은 시설, 장서, 직원 등 기본적인 도서관 자원의 영역으로 나타났다. 또한 도서관장애인서비스 우수사례를 분석한 결과 독서문화프로그램과 정보서비스 품질요인에 강조를 두고 있음이 조사되었다.

• 중환자간호학회지
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• 제12권1호
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• pp.22-35
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• 2019

Purpose : This study was to determine the levels of environmental stressor, posttraumatic stress disorder, and quality of life in intensive care units (ICU) survivors after intensive care, and to explore the factors affecting posttraumatic stress disorder and quality of life. Methods: With a longitudinal survey design, data were collected from 116 patients who were discharged from the ICU of a university hospital. The environmental stressor, posttraumatic stress disorder, and quality of life were measured immediately following and 1 month after the ICU discharge. Results: Of all the subjects, 16.4% experienced posttraumatic stress disorder after discharge. Multiple regression analysis revealed that ICU environmental stressors, experience of ICU readmission, using psychotropic drugs and narcotic analgesics, and ICU admission after surgery or cardiac intervention accounted for 22.2% of posttraumatic stress disorder. Posttraumatic stress disorder and sedation status when entering ICU accounted for 28.3% of the quality of life 1 month after ICU discharge. Conclusion: Nursing interventions focused on ICU environmental stressors would not only reduce environmental stress but also contribute to the reduction of posttraumatic stress disorder and later improvement of quality of life.

• 품질경영학회지
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• 제51권4호
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• pp.531-550
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• 2023

Purpose: The unique nature of life-and-death healthcare services sets them apart from other service industries. While many studies exist on the relationship between healthcare services and customer satisfaction, most of them focus on mildly ill patients, ignoring the differences between critically ill and non-seriously ill patients. This study discusses the actual quality of healthcare services for patients who are facing life-threatening illnesses and are on life support, as well as their right to protection and dignity. Methods: The survey conducted to 149 patients with the four major illnesses: cancer, heart disease, brain disease and rare and incurable disease, those who have experiences with senior general hospitals. Results: The basic statistics of this study are adequate to represent the four major critical illnesses, and the reliability and validity of this study's hypotheses, which were measured by multiple items, were analyzed, and the internal consistency was judged to be high. In addition, it was found that the convergent validity was good and the discriminant validity was also secured. When examining the goodness of fit of the hypotheses, the SRMR, which is the standardized root mean square of residuals that measures the difference between the covariance matrix of the data variables and the theoretical covariance matrix structure of the model, met the optimal criteria. Conclusion: The academic implications of this study are differentiated from other studies by moving away from evaluating the quality of healthcare services for mildly ill patients and focusing on the rights and dignity of patients with life-threatening illnesses in four senior general hospitals. In terms of academic implications, this study enriches the depth of related studies by demonstrating the right to protection and dignity as a factor of patient-centeredness based on physical environment quality, interaction quality, and outcome quality, which are presented as sub-factors of healthcare quality. We found that the three quality factors classified by Brady and Cronin (2001) are optimized for healthcare quality assessment and management, and that the results of patients' interaction quality assessment can be used to provide a comprehensive quality rating for hospitals. Health and human rights are inextricably linked, so assessing the degree to which rights and dignity are protected can be a superior and more comprehensive measurement tool than traditional health level measures for healthcare organizations. Practical implications: Improving the quality of the physical environment and the quality of outcomes is an important challenge for hospital managers who attract patients with life and death conditions, but given the scale and economics of time, money, and human inputs, improving the quality of interactions and defining them as performance indicators in hospital quality management is an efficient way to create maximum value in the short term.

• International Journal of Quality Innovation
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• 제5권2호
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• pp.132-140
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• 2004

Supply Chain Management (SCM) has drawn high attention and been discussed and under investigation for over two decades. However, how Hong Kong manufacturing firms carry out SCM is still unclear. In order to open the myth on what essentials are critical for SCM implementation, a large-scale questionnaire survey was conducted together with Expert Interviews in 2003. A SCM framework was then developed in which all the critical factors were summarized, categorized and prioritized to come up with a foundation for a self-assessment system for improving SCM performance.

• Nuclear Engineering and Technology
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• 제31권2호
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• pp.236-255
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• 1999

An improved mechanistic model was developed to predict a convective boiling critical heat flux (CHF) in the vertical round tubes with uniform heat fluxes. The CHF formula for subcooled and low quality boiling was derived from the local conservation equations of mass, energy and momentum, together with appropriate constitutive relations. The model is characterized by the momentum balance equation to determine the limiting transverse interchange of mass flux crossing the interface of wall bubbly layer and core by taking account of the convective shear effect due to the frictional drag on the wall-attached bubbles. Comparison between the present model predictions and experimental CHF data from several sources shows good agreement over a wide range of How conditions. The present model shows comparable prediction accuracy with the CHF look-up table of Groeneveld et al. Also the model correctly accounts for the effects of flow variables as well as geometry parameters.

• 중환자간호학회지
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• 제7권1호
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• pp.40-46
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• 2014

Purpose: In Korea, about 30,000 people die in intensive care units annually. However, their quality of life at the end-of-life seems very low. The purpose of this study was to describe palliative care models that could be applied in intensive care units and examine nurses' roles in the models. Methods: A conventional literature review was performed focusing on palliative care in intensive care units and nursing roles in the approaches identified. Results: There are two different models regarding the implementation of palliative care approaches in the intensive care unit. Those are the consultative model and the integrative model. Each model has advantages and disadvantages. Therefore, an appropriate model must be chosen according to the setting. Nurses' roles could vary depending on the setting. Conclusion: Palliative care in the intensive care unit is important to improve patients' quality of life. Moreover, nursing roles are important in providing comprehensive palliative care in intensive care units.