• Journal of the Ergonomics Society of Korea
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• v.19 no.3
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• pp.93-107
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• 2000

The excessive exposure to powered hand tools can cause damage to nerves, impair blood circulation, and musculoskeletal damage. The symptoms associated with hand-arm vibration syndrome (HAVS) include numbness, tingling, pain and subsequent reduced dexterity of the hands. This study was performed to report the prevalence of the HAVS and evaluate its related factors among the workers using powered hand tools. Total 282 workers in 11 plants of Kyungki and Inchon areas were examined. A standard symptom questionnaire was developed and administered to collect information on personal characteristics, work history, operating conditions, tool characteristics, and subjective symptoms of HAVS. Mean values (standard deviations) of the age, the duration of powered hand tools used, and the daily hours using powered hand tools were 38.3(8.9) years, 79.3(62.2) months and 6.0(2.6) hours, respectively. 132 workers(46.8%) showed vibration-induced white finger symptoms according to the Taylor-Pelmear classification, and 30 workers(10.6%) were interfered with the work. The results of a multiple logistic regression analysis controlling for age and daily working hours showed that smoking, work duration, weight of tools, and continuous work over 2 hours were significantly associated with the symptom of HAVS.

• The Korean Journal of Community Living Science
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• v.20 no.4
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• pp.515-522
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• 2009

This study was to develope the functional work clothing for livestock farmers. Major demanding performances for livestock work clothing are anti-soil and anti-bacterial properties. On surveys, functional fabrics that have anti-soil, anti-bacterial and waterrepellent performances were developed and the work clothing that have adaptability to body movements were manufactured. The designs of livestock working clothes were two piece and one piece with rubber bade in waist. The thermal responses of subjects wearing the winter working clothes for stock farming worker were measured in the climate chamber($17^{\circ}C$, 40% R.H.). The main results were summarized as follows: Total body weight loss was smaller and the mean skin temperature was higher in developed clothes than the market product. Clothing micro-climate of developed clothes was lower than the market clothes. Subjective sensation did not have significant differences. From the results of various evaluation, developed garments for livestock workers showed better efficiency than the market product.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.45 no.3
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• pp.46-54
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• 2008

Most commercial CCD/CMOS image sensors have CFA(Color Filter Array) where each pixel gathers light of a selective color to reduce the sensor size and cost. There are many algorithms proposed to reconstruct the original clolr image by adopting pettern recognition of regularization methods to name a few. However the resulting image still suffer from errors such as flase color, zipper effect. In this paper we propose an adaptive edge weight demosaicking algorithm that is based on POCS(Projection Onto Convex Sets) not only to improve the entire image's PSNR but also to reduce the edge region's errors that affect subjective image quality. As a result, the proposed algorithm reconstruct better quality images especially at the edge region.

• Journal of Sasang Constitutional Medicine
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• v.16 no.2
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• pp.114-121
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• 2004

1. Objectives Hyperemesis Gravidarum is one of common symptoms clinically and caused by pregnancy. This is defined as vomiting sufficiently pernicious to produce weight loss, dehydration, acid-base imbalance. In severe case, it also leads to neurologic abnormality including confusion, gate disturbance, nystagmus. We have tried researching effect of herbal medicines, Soyangin Hyungbangsabaek-san. 2. Methods To heal the Hyperemesis Gravidarum, we used Soyangin Hyungbangsabaek-san. 3. Results Hyperemesis Gravidarum of a Soyangin patient was treated with a herb-medicine, and change of her subjective symptom & general condition was managed. 4. Conclusions The constitutional treatment with herb-medicine (Soyangin Hyungbangsabaek-san) was efficacious against Hyperemesis Gravidarum. Further study on management of this disease is needed.

• Research in Community and Public Health Nursing
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• v.23 no.3
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• pp.231-243
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• 2012

Purpose: The purpose of this study was to identify the relationships between health status including objective health status and subjective health perception and Health-Promoting Lifestyle Profile II in North Korean immigrants. Methods: During August 2011 to November 2011, a convenience sample of 96 subjects aged 19 to 65 years were recruited from two centers and one public health center in Gyeongnam. The subjects were interviewed face to face by trained people with a survey questionnaire. Results: Approximately 40% of North Korean immigrants rated their health status as 'poor', and the prevalence of health problems in them was 81.3%. The average level of health-promoting lifestyle profile II was $1.78{\pm}0.35$. Females with normal weight or overweight, and have stayed for over 1 year in South Korea were related to the lower score of health-promoting lifestyle profile II. Conclusion: Considering North Korean immigrants' health background and health behaviors, customized health care program focusing on musculoskeletal disorder and psychological problems are required, and at the same time health behavior change program to achieve lifetime wellness should be developed.

• Journal of the Korean Society of Safety
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• v.26 no.1
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• pp.27-35
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• 2011

There are many countermeasures collected by field experts, safety managers with their subjective decisions, without analysis. Subcontractor does not know which one of those can be more defective countermeasures. More weighted countermeasures should be taken for subcontractor's economical aspects. But there are almost no measures with useful weight so that subcontractors can select some as they need more effective even though there are not many measures at construction sites. AHP technique has been introduced into the analysis of counter measures for subcontractor. Countermeasures which car collected from field-experienced safety engineers have been weighed with frequency rate saying how many responders selected. And then, they are analyzed by AHP Technique for making out relative important level of the countermeasures, by each step such as Direct, Indirect, Management level, and policy level, quantitatively. AHP level in the study is composed of two stories, not three stories, in order to make respondents easier when they are asked. At least 15-year-experienced expert are asked for AHP questionnaire.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.7
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• pp.993-1004
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• 2002

This study was designed to examine the aesthetic characteristics of traditional wedding dress in Japan based on the internal$.$external aesthetics. They were extruded external and internal aesthetics based on pattern, color and fitting. The results of this study can be summarized as follows; Decorative characteristics in external aesthetics extracted into three factors; fantasticism, movement, amusement. The fantasticism was based on the omitted pattern, painting gold. The movement was presented through irregular composition, fitting method, and silhouette. The amusement was expressed through the composition focus on a near view and pattern reminded of bring up the image. Fitting characteristics in external aesthetics extracted into four factors; grace, cubic effect, optical illusion, and tradition. The pace was expressed through the weight, formativeness, and layered look The cubic effect was presented through spacing of belt and H-line silhouette. The optical illusion was based on the straight line of seam, V-pleats and straight silhouette of fitting, and high-waisted belt. The tradition expressed through the unchanged form since Heian-dynasty. Internal aesthetics were characterized by the naturalism and the moderation. The naturalism was presented through the natural pattern which based on subjective feeling, indignity and position of wearing man, and color based on taste. The necessaries, or pressed artificial moderation, were expressed through the clothing silhouette by simplicity.

• Ocean Systems Engineering
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• v.5 no.3
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• pp.161-179
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• 2015

An emergency response system (ERS) for vessel oil spills is a complex and dynamic system comprising a number of subsystems and activities. Failures may occur during the emergency response operations, this has negative impacts on the effectiveness of the ERS. Of the classes of problems in analyzing failures, the lack of quantitative data is fundamental. In fact, most of the empirical data collected via questionnaire survey is subjective in nature and is inevitably associated with uncertainties caused by the human being's inability to provide complete judgement. In addition, incomplete information and/or vagueness of the meaning about the failures add difficulties in evaluating the effectiveness of the system. Therefore this paper proposes a framework to evaluate the ERS effectiveness by using the combination of fuzzy reasoning and evidential synthesis approaches. Based on analyzing the procedure of ERS for oil spills, the failures in the system could be identified, using Analytic Hierarchy Process(AHP)to determine the relative weight of identified failures. Fuzzy reasoning combined with evidential synthesis is applied to evaluate the effectiveness of ERS for oil spills under uncertainties last. The proposed method is capable of dealing with uncertainties in data including ignorance and vagueness which traditional methods cannot effectively handle. A case study is used to illustrate the application of the proposed method.

• Journal of Korea Society of Industrial Information Systems
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• v.24 no.1
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• pp.1-12
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• 2019

This paper proposes a new motion vector smoothing and motion compensation method to increase the frame rate of videos. The proposed method reduces false motion vector smoothing by improving the weight with reflecting accuracy to overcome the limitation of the conventional motion vector smoothing using the adaptively weighted vector median. Also, to improve the interpolated image quality of the conventional OBMC(Overlapped Block Motion Compensation), a scheme that divides an original block into 4 sub-blocks and then generates the interpolated frame using the reestimated motion vector for each sub-block is proposed. The simulation results prove that the proposed method can provide much better objective and subjective image quality than the conventional method.

• Clinical Psychopharmacology and Neuroscience
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• v.16 no.4
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• pp.481-488
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• 2018

Preliminary studies have claimed that short term fasting would negatively affect school performance and cognition. In contrast some other studies have reported not important decline in cognition and executive function as a result of fasting. Also limited attention was generally devoted to dietetic regimens, nutritional status and body weight. Yet neuroscience and neuro-cognitive aspects of acute hunger on the electroencephalogram and differences between obese and non-obese cases is not well understood. Hence, we decided to design and perform a case study in a more controlled situation similar to reality. Therefore, we performed several examinations including subjective tests (for eating status) and objective tests (cognitive tests such as Stroop effect and Sternberg search and electroencephalogram measures such as steady-state visual evoked potential and auditory steady-state responses) for an obese and a non-obese academic case before and after a simple breakfast. The results showed that the breakfast effects on the neuro-cognitive functions depend on either obesity status, nutritional status of the case or the type of cognitive task (visual or auditory). This paper would open a new insight to answer some important questions about the neuro-cognitive implications of fasting and feeding in obese and non-obese human cases.