• Proceedings of the Korean Society of Medical Physics Conference
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• 2002.09a
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• pp.260-262
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• 2002

An accurate measurement of dose distribution is indispensable to perform radiation therapy planning. A measurement technique using a radiographic film, which is called a film dosimetry, is widely used because it is easy to obtain a dose distribution with a good special resolution. In this study, we tried to develop an analyzing system for the film dosimetry using usual office automation equipments such as a personal computer and an image scanner. A film was sandwiched between two solid water phantom blocks (30 ${\times}$ 30 ${\times}$ 15cm). The film was exposed with Cobalt-60 ${\gamma}$-ray whose beam axis was parallel to the film surface. The density distribution on the exposed film was stored in a personal computer through an image scanner (8bits) and the film density was shown as the digital value with NIH-image software. Isodose curves were obtained from the relationship between the digital value and the absorbed dose calculated from percentage depth dose and absorbed dose at the reference point. The isodose curves were also obtained using an Isodose plotter, for reference. The measurements were carried out for 31cGy (exposure time: 120seconds) and 80cGy (exposure time: 300seconds) at the reference point. While the isodose curves obtained with our system were drawn up to 60% dose range for the case of 80cGy, the isodose curves could be drawn up to 80% dose range for the case of 31cGy. Furthermore, the isodose curves almost agreed with that obtained with the isodose plotter in low dose range. However, further improvement of our system is necessary in high dose range.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.391-400
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• 2015

This research analyzes the actual condition and trend in 119 research papers about sadness mediation program for senior citizens, which were published from 1990 to 2014, to find an expansive way for seniors. And the result is as in the following: publish year of subjects is 2010 to 2014, research plan was done by experimental-control group plan, and we quoted the most of the yardstick from foreign research, in the case of the seniors stays in their own house. Art therapy is the most common way of mediation, and most programs were done less than 10 times, once in a week, and less than 60 minutes in once. And variable of efficacy is verified in the order of physical ability, self-worth, and cognitive function. As the first research that analyzes the trend of sadness mediation program for senior citizens, this research is expected to help setting the direction of future research. that is related to convergence.

• The Journal of Korean Medicine
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• v.32 no.2
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• pp.42-62
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• 2011

Objective: This study was designed to identify and explore the pathological patterns of functional dyspepsia (FD) patients. We also evaluated the usefulness of the Pattern Identification Questionnaire by comparing it with other assessment tools for FD. Methods: We recruited 97 FD patients based on the Rome III criteria for FD diagnosis. The pathological patterns of the subjects were determined by the Pattern Identification Questionnaire. Their dyspepsia-related symptoms were assessed using the Gastrointestinal Symptom Questionnaire (GIS) and the Pyeongwi-san (Pingwei-san) Patternization Questionnaire. Depressive symptoms were evaluated with the Beck Depression Inventory (BDI) and quality of life with the Functional Dyspepsia-Related Quality of Life (FD-QoL) Questionnaire. Tongue coating was measured by the Digital Tongue Diagnosis System (DTDS). Results: The male to female ratio was 1:1.1, and the forties and fifties age groups were largest in number. The spleen deficiency and phlegm-dampness pattern was the most common pattern found among the FD patients. No significant differences in the GIS, BDI, FD-QoL, and DTDS scores were found among the five pattern types. All pattern types showed significant correlation with GIS, Pyeongwi-san Patternization Questionnaire, and FD-QoL scores. Conclusions: Pattern Identification Questionnaire can not only identify the pathological pattern types of FD patients but also evaluate the severity of their symptoms. Compared to conventional assessment tools for FD, it could enable a more dynamic evaluation of FD patients reflecting the severity of dyspeptic symptoms and the quality of life. Further studies on the Pattern Identification of FD patients are anticipated in order to improve the diagnosis and therapy for Korean FD patients.

• Journal of Digital Convergence
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• v.15 no.3
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• pp.385-391
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• 2017

The purpose of this study is to understand the food and nutritional value of based on the oriental Qi-flvor theory and to convergence understanding of dietary effects. In this study, dietary effect of Yulmubokyeoljuk based on oriental theory and analyzed the contents of general composition and minerals. We recognize the value as a food that can be used for therapy of Yulmubokyeoljuk. Phosphorus content was high and high calory foods. In addition, by discharging stagnant water in the spleen, excessive wetness is removed and the function of transportation of the spleen is strengthened. The results of this study suggest that it provided the basis of the characteristics of food and the necessity of convergence approach to dietary efficacy based on the traditional Qi-flvor theory and nutrional composition.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.479-486
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• 2017

The purpose of this study is to investigate the effects of lumbar stabilization exercise on pain-related function of industrial workers with chronic low back pain and lumbar instability. 20 industrial workers with chronic low back pain were divided into two groups, control group(n=10) and experimental group(n=10). Back muscle strength, flexibility, and balance ability were measured to assess physical functions, and visual analog scale(VAS) was used to evaluate pain levels. In both groups, back muscle strength and balance ability increased significantly, and pain levels decreased significantly. In comparison between the groups, the experimental group compared to the control group showed significant improvement in balance ability and significant diminishment in pain levels. In conclusion, the lumbar stabilization exercise has positive effects on industrial workers with lumbar instability and chronic low back pain by improving balance ability and reducing pain.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.253-262
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• 2017

The purpose of this study was to analyze the correlation between psychosocial factors and therapeutic flow in stroke patients and identify the factors influencing therapeutic flow. Total 168 stroke patients from 15 hospitals were measure for depression, stress, self-efficacy, rehabilitation motivation and therapeutic flow. Factors that affect the therapeutic flow correlation as s result of negatively correlated with depression(r=-.349, p<.001), stress(r=-.290, p<.001), self-efficacy(r=.528, p<.001), rehabilitation motivation(r=.186, p<.05) was found in the positively correlated. Finally the effect on therapeutic flow in stroke patients variables affecting self-efficacy(${\beta}=.443$, p<.001) and depression(${\beta}=-.155$, p<.05) were the order of analysis. These result demonstrate that the therapeutic flow of storke patients was a significant correlation on psychosocial factors, future study will continue to be needed.

• Journal of Digital Convergence
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• v.14 no.2
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• pp.415-426
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• 2016

The purpose of this study is to explore the effects of ACT on smartphone addiction level, self-control, and anxiety of college students with smartphone addiction. 320 college students who lived in Chonbuk completed SAPS-A. 42 students who gained more than 40 points score by SAPS-A completed SCRS, STAI, and AAQ-16 as pre-treatment. Final 18 participants were randomly assigned to 9 in the ACT group and 9 in control group. ACT program was administered for 8 sessions, follow-up study was conducted at the end of treatment and at 4 weeks follow-up periods. The results of this study were as follows: Smartphone addiction and anxiety levels of ACT group were significantly reduced and maintained until the follow-up. Self-control and Acceptance-action levels were significantly increased and maintained until the follow-up. It has been confirmed that ACT had an effect on smartphone addiction treatment, anxiety decrease and self-control ability improving, therefore, based on this result, further research will be needed to apply the ACT on smartphone addiction treatment in families, school, local community, etc.

• Journal of Digital Contents Society
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• v.16 no.3
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• pp.483-492
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• 2015

This thesis analysis the CARBO 3000 that is one of a $CO_2$ infuser and improve its effectiveness. The thesis designs H/W and S/W that controls the $CO_2$ infusing mass compared to the CARBO 3000. Specially the designed H/W has a newly CPU, LCD, a flow velocity controller, a solenoid valve and a flow sensor. Also the designed S/W is composed of GUI and the algorithm to control the $CO_2$ infusing mass. The designed and implemented the $CO_2$ Infuser in this thesis is tested for the performance. The commercial measuring sensor is used for the test. The testing results say that the designed and implemented the $CO_2$ Infuser in this thesis is much more accurate compared to the CARBO 3000 on $CO_2$ infusing.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.381-391
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• 2015

The purpose of this study was to investigate the trends in research on the effects of virtual reality technology applied to rehabilitation for disabled. I have collected 60 papers published in Korea(2000-2014), and analyzed it by the P.I.C.O. method. As a result, adults and the elderly are most common subjects, and projection type has been used frequently in researches. It were included mostly balance, upper extremity function, and gait that the dependent variables represents the intervention effects. I interpreted it as the ICF factors. So, research topics were the most common mobility, in contrast to educational, vocational, recreational area as dealing with the participation area is very small. In the future, we should focused on social aspects for useful intervention in real life of people with disabilities based on virtual reality technology, and virtual reality technology should be easy to apply in terms of cost and accessibility.

• Journal of Digital Convergence
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• v.13 no.3
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• pp.295-304
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• 2015

We assessed reading-related skills in children with reading comprehension difficulties ("Poor comprehenders"), word decoding difficulties ("Poor decoders") and normal readers, matched for age and nonverbal IQ. The reading-related skill tests used in our study are phonological processing, visual processing test, and receptive vocabulary test. The authors argue that children who had difficulty in reading comprehension had lower scores only on the phonological short-term memory test compared with normal readers, although their performance on receptive vocabulary and visual processing tests are comparable to normal readers. The results of our study revealed that poor decoders had lower scores on the phonological processing, visual processing, and receptive vocabulary tests.