• Analyses & Alternatives
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• v.7 no.3
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• pp.181-230
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• 2023

Evaluating the empirical validity of Modern Monetary Theory, this study implements panel cointegration analysis on annual panel data (2000-2022) of OECD countries. Specifically, the sample countries are divided into groups based on the presence of their own sovereign currencies, and for each group, the long-run equilibrium relation (cointegration) between the ratio of public debt or fiscal deficit and government bond rates is tested and estimated. Main findings are as follows: applying the pooled mean-group estimation for panel cointegration, it is found that both the ratios of public debt and fiscal deficit have significantly positive long-run correlation with government bond rates in countries without sovereign currency such as the Euro-zone or fixed exchange rate regime countries. However, in countries with sovereign currency such as non-Euro-zone or floating exchange rate regime countries, the long-run correlation is either negative or not statistically significant. Particularly, in countries without sovereign currency, the ratio of public debt has significantly positive correlation with the real government bond rates in the short run as well as the long run. These results are consistent with the prediction of Modern Monetary Theory, thus providing a supporting evidence for the empirical validity of the theory.

• Korean Journal of Community Nutrition
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• v.29 no.2
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• pp.129-143
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• 2024

Objectives: The objective of this study is to compare a nutritionally balanced soft blend diet (SBD) with a soft fluid diet (SFD) on the health of inpatients who have undergone oral and maxillofacial (OMF) surgery, ultimately aiming to enhance care outcomes, improve health-related quality of life (QOL), and increase satisfaction with the hospital. Methods: Thirty-two patients were randomized into two groups: sixteen received SFD and sixteen received SBD. Anthropometric, laboratory evaluations were conducted upon admission and discharge. Patients filled out questionnaires on demographics, diet satisfaction, food intake amount, and health-related QOL on the day of discharge, assessed using the EuroQoL 5 Dimensions 3 Level and EuroQoL Visual Analogue Scale (EQ-VAS) instruments. Data were analyzed with descriptive statistics, χ² tests for group differences, and paired nonparametric t-tests for within-group comparisons. The Mann-Whitney U test evaluated inter-group differences in preoperative weight and body mass index (BMI), postoperative changes, meal satisfaction, intake, health-related QOL, and self-assessed health status. P-values were set at a significance level of 0.05. Results: The SBD group had higher dietary intake (63.2% vs. 51.0%) and greater diet satisfaction (80.6 vs. 48.1, P < 0.0001) compared to SFD group. Health-related QOL, measured by EQ-VAS, was better in SBD group (70.3 vs. 58.8, P < 0.05). Postoperative weight and BMI decreased in SFD group but increased in SBD group (P < 0.01). Changes in laboratory results showed more stability in the SBD group. No postoperative infections were reported in SBD group, whereas SFD group had a 31.25% complication rate. Conclusions: While SFD is often recommended after OMF surgery to protect oral wound healing process, our study reveals that SBD not only enhances physical and psychological outcomes but also, somewhat unexpectedly, supports wound healing and reduces complications. Essentially, SBD promotes physical recovery and enhances health-related QOL than SFD by supporting both somatic and mental healing aspects.

• International Journal of Control, Automation, and Systems
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• v.6 no.6
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• pp.928-938
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• 2008

This study presents an approach for approximation an unknown function from a numerical data set based on the synthesis of a neuro-fuzzy model. An adaptive input data space parting method, which is used for building hyperbox-shaped clusters in the input data space, is proposed. Each data cluster is implemented here as a fuzzy set using a membership function MF with a hyperbox core that is constructed from a min vertex and a max vertex. The focus of interest in proposed approach is to increase degree of fit between characteristics of the given numerical data set and the established fuzzy sets used to approximate it. A new cutting procedure, named NCP, is proposed. The NCP is an adaptive cutting procedure using a pure function $\Psi$ and a penalty function $\tau$ for direction the input data space parting process. New algorithms named CSHL, HLM1 and HLM2 are presented. The first new algorithm, CSHL, built based on the cutting procedure NCP, is used to create hyperbox-shaped data clusters. The second and the third algorithm are used to establish adaptive neuro- fuzzy inference systems. A series of numerical experiments are performed to assess the efficiency of the proposed approach.

• Journal of ILASS-Korea
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• v.17 no.4
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• pp.185-191
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• 2012

Particulate matters (PM) that is generated by most diesel engine is regulated by the mass concentration measured by the conventional method it had been. Recently, Europe PMP (Particle Measurement Program) decided to start the regulation of vehicle's nano-sized particle number (PN) from the year of 2011 because of nano-particle's higher degree of harm to the human body. So firstly, the standard level of PN emission is introduced in the Euro 5/6 emissions regulation with a limit of $6{\times}10^{11}$ per km for light duty vehicle. Also KPMP(Korea Particle Measurement Program) was organized to copy quickly international technical trend. In this paper, it was investigated the nano-sized PN measurement characteristics for different particle generators between spray type and soot type. And the difference ratio between particle generators, the characteristic of PN concentration, counting efficiency and linearity was analyzed. Then, we make conclusions as followed. When particle diameter is increased, counting efficiency of two generators is decreased. Also Secondary calibration method is more higher 3% than Primary calibration method. Finally, SOF which is included in soot particles is not totally removed so it have great influence on test result of counting efficiency and linearity.

• The Journal of Korean Obstetrics and Gynecology
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• v.33 no.3
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• pp.187-197
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• 2020

Objectives: This case report aims to report the clinical effectiveness of the combination treatment of Korean medicine on a post-laparoscopic myomectomy patient's lower urinary symptoms (LUTS). Methods: The patient who diagnosed with uterine myoma had Laparoscopic myomectomy. After the operation, the patient complained of dysuria, nocturia, frequent urination, urgent urination and urinary retention. The patient received combination treatment of Korean medicine during 14 days of hospitalization. The treatment included Ohrim-san, acupuncture, moxibustion, and pharmacoacupuncture. The effects were evaluated through the Numeric Rating Scale (NRS), Overactive Bladder Symptom Score (OABSS), Frequency-Volume chart, and 5-Level version of EuroQol-Five Dimension (EQ-5D-5L). Results: After the treatment, the clinical symptoms such as dysuria, nocturia, frequent urination, urgent urination, urinary retention were improved. Also, the quality of life was enhanced. Conclusions: This case report shows that the combination treatment of Korean Medicine with Ohrim-san may be effective for treating lower urinary tract symptoms (LUTS) after laparoscopic myomectomy.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.04a
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• pp.559-560
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• 2010

전세계적으로 해양교통안전, 해양환경 및 연안관리 등을 목적으로 다양한 해양기상모니터링시스템이 개발되어 운영되고 있다. 미국 NOAA의 해양물리실시간관측시스템(PORTS), 유럽연합의 해양모니터링시스템(EURO SITES), 일본의 연안역 정보제공시스템(MICS) 등 전세계적으로 개발, 운영되고 있는 해양기상모니터링시스템에 대한 고찰을 통하여 해양기상모니터링시스템의 개발방향과 향후전망을 살펴본다. 또한 국내에서 개발, 구축 중인 해양기상모니터링시스템의 현황과 내용에 대하여 고찰하고, 이를 통하여 해양기상모니터링시스템 구축이 해양항만교통안전에 기여할 수 있는 바람직한 기술개발 방향 및 향후 발전 방향에 대해 논의하고자 한다.

• Journal of Korean Biological Nursing Science
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• v.11 no.2
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• pp.136-142
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• 2009

Purpose: The purpose of this study was to identify the factors influencing health related to quality of life with hypertension patients. Methods: The subjects of this study were 409 hypertensive patients. Data were collected from March 1st to April 30th, 2008. A questionnaire consisting of exercise barrier, Psychosocial Wellbeing Index (PWI), EuroQol 5D (EQ-5D) was given. The collected data were analyzed with the SPSS program which was used for descriptive statistics, univariate and multivariate analysis. Results: There was a significant relationship between exercise barrier (t=3.57, p=.000), psychosocial wellbeing (F=29.96, p=.000) and health related to quality of life. According to the result of multiple regression, the identified significant factors were an exercise barrier (F=7.09, p=.000) and psychosocial wellbeing (F=21.5, p=.000) with health related to quality of life. Conclusion: Hypertension patients experienced exercise barrier and psychosocial distress which led to a negative effect on health related to quality of life. Therefore it is needed to encourage motivation of lasting of exercise compliance and relieving of psychosocial distress for better health promotion and high quality of life.

• Transactions of the Korean Society of Mechanical Engineers
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• v.16 no.10
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• pp.1833-1840
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• 1992

In the diagnostic process for automobile, Neuro-Fuzzy technique was compared with the conventional diagnostic method for the verification of performance, and proto-type system was developed. For the utilities of the system, 1/3 octave filter(band-pass filter) and A/D converter were used for data acquisition and then data were analyzed using octave band processing and pattern recognition using hamming network algorithm. In order to raise the reliability of the diagnostic results by considering many operating variables and condition of automobile to be diagnosed, fuzzy inference technique was applied in combining several information. The validation of this diagnostic system was examined through computer simulation and experiment, and it showed an acceptable performance for diagnostic process.

• Journal of Sensor Science and Technology
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• v.22 no.3
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• pp.191-196
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• 2013

A particulate matter sensor fabricated by MEMS process is proposed. It is developed to accommodate Euro6 on-board diagnostics regulation for diesel automobile. In the regulation, emission of diesel particulate matter is restricted to 9 mg/km. Particulate matter sensor is designed to use induced charges by charged particulate matter. To increase sensitivity of the sensor, groove is formed on sensor surface because wider surface area generates more induced charges. Sensitivity of the sensor is measured 10.6 mV/(mg/km) and the sensor shows good linearity up to 15.7 mg/km. Also its minimum detectable range is about 0.25 mg/km. It is suitable to detect failure of a diesel particulate filter which should filter particulate matter more than 9 mg/km. For removing accumulated particulate matter on the sensor which can disturb normal operation, platinum heater is designed on the backside of the sensor. The developed sensor can sense very low amount of particulate matter from exhaust gas in real-time with good linearity.

• Journal of muscle and joint health
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• v.19 no.2
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• pp.152-160
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• 2012

Purpose: The purpose of this study was to test the effects of the Tai Chi exercise on metabolic syndrome and health-related quality of life in middle-aged women. Methods: A quasi-experimental design was used. Subjects were sixty middle-aged women with metabolic syndrome. All of the subjects were met the criteria of the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATP III). The subjects were divided into the experiment group (n=33) trained the Tai Chi for 12 weeks and the control group (n=27). Metabolic syndrome risk factors including blood pressure, waist circumference, glucose, triglyceride (TG), and high density lipoprotein cholesterol (HDL-C) were measured before and after the 12-week period. Euro Quality of Life Questionnaire 5-Dimensional Classification (EQ-5D) was used to evaluate the health-related quality of life. Results: The experiment group showed significant decreases in diastolic blood pressure, waist circumference, glucose, and TG; and increase in HDL-C compared to the control group. For the health-related quality of life evaluation, the experiment group showed significant improvement more than the control group. Conclusion: The Tai Chi exercise may be effective intervention in preventing cardiovascular disease caused by metabolic syndrome in middle-aged women.