• Korean Journal of Health Education and Promotion
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• v.27 no.4
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• pp.131-139
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• 2010

Objectives: This pilot study was designed to examine whether the adolescent smoking cessation program with harmonica therapy was effective or not. It was qualitatively explored perceived smoking consequences, cessation and relapse experience, specific harmonica help to overcome smoking urge, preference of harmonica toward cessation, and harmonica intervention planning to quit. Methods: The treatment program was conducted 30-minute, 6-session, and once a week basis. Qualitative data using Focus Group Interview were collected at the completion of the program with 6 participants, and analyzed by Krueger's systematic process. Results: Participants were smoking daily and consumed 3-10 cigarettes. They recognized undesirable smoking consequences in terms of cost, interpersonal relationship, and health that might lead to cessation attempts in the past. Participants who did not want to quit smoking at the program beginning changed their attitude to quit after exploring partial cessation efforts with the help of harmonica therapy. They believe harmonica's consistent help of quitting and leading to success. Conclusion: Adolescent attitudinal change toward smoking cessation has promising insight of motivation enhancement through harmonica therapy that was a major barrier to successful quit.

• Physical Therapy Korea
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• v.25 no.3
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• pp.60-67
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• 2018

Background: Progressive muscle weakness is aggravated not only in the skeletal muscles but also in the respiratory muscles in many patients with neuromuscular diseases (NMD). Inspiratory muscle training (IMT) has been reported as therapy for pulmonary rehabilitation to improve respiratory strength, endurance, exercise capacity, and quality of life, and to reduce dyspnea. Objects: The purpose of this study was to determine the effect of playing harmonica for 5 months on pulmonary function by assessing the force vital capacity (FVC), peak cough flow (PCF), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and maximal voluntary ventilation (MVV) in patients with NMD. Methods: Six subjects with NMD participated in this study. The subjects played harmonica once a week for 2 hours at a harmonica academy and twice a week for 1 hour at home. Thus, training was performed thrice a week for 23 weeks. The examiner assessed pulmonary function by measuring FVC in the sitting and supine positions and PCF, MIP, MEP, and MVV in the sitting position at the beginning of training and once a month for 5 months. Results: Both sitting and supine FVC significantly increased after playing harmonica (p=.042), as did MIP (p=.043) and MEP (p=.042). Conclusion: Playing harmonica can be used as an effective method to improve pulmonary function in patients with NMD.

• Journal of Music and Human Behavior
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• v.15 no.2
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• pp.23-39
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• 2018

The purpose of this research was to investigate the effects of respiratory rehabilitation using a wind instrument for patients suffering from spinal cord injuries. From January 15, 2018 to April 15, 2018, we conducted ten 1-hour sessions of a harmonica program with eight patients with spinal cord injuries with average age of 37 years who could not perform abdominal breathing by themselves. We measured and compared patients' breathing capacity before and after the 10 sessions. Designed particularly for patients with spinal cord injuries resulting in a limited range of neck movement, the study used a 10-hole diatonic harmonica whose length was relatively short. For those patients who had difficulty using their hands, a harmonica holder was provided. Participants were trained to play simple tunes. They were guided to use abdominal breathing to make sounds, with emphasis on those parts requiring long and strong breathing. The results showed that for all eight patients both their breathing volume and their inspiratory volume increased following participation in the harmonica program. Also, the program had psychological benefits (e.g., more life satisfaction and less sadness) and additional physical benefits (e.g., less dizziness due to low blood pressure and better phlegm spitting). This study offers a unique way to help patients with spinal cord injuries to improve their breathing capacity, which may also be associated with a greater quality of life.

• The Journal of Korean Society for School & Community Health Education
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• v.9 no.2
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• pp.119-124
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• 2008

1821년 독일에서 발명된 하모니카는 유럽, 아시아, 미 대륙으로 확산되면서 각 나라와 지역의 기호 및 전통에 따라 수용, 변화되었으며 현재는 약 150여종의 서로 다른 모습으로 그 장점을 따라 활용되고 있다. 하모니카는 인간의 생활에 여러가지 유익을 주는데 다만 심폐기능을 중심으로 하는 신체적 건강뿐만 아니라 정신적, 정서적 건강에 유익한 영향을 미친다. 특히 이러한 하모니카를 활용한 여가생활과 인간관계의 형성은 학령기 어린이와 청소년들에게 더 없이 유익하다. 학령기 어린이와 청소년들의 건강증진과 삶의 질에 미치는 유익한 영향은 구체적으로 학교 자퇴율의 감소, 학습능력의 향상, 수업집중도의 향상, 정신건강수준 향상, 사회관계 형성, 음주, 흡연, 폭력 등 건강위험행위 예방, 신체적, 정서적 안정 등을 들 수 있다. 따라서 하모니카 불기와 감상하기를 학교 재량수업시간에 도입하는 것은 위와 같은 다양한 유익을 확대하는데 의미있는 방법이므로 신중하게 검토할 필요가 있다.

• Journal of the Korean Geosynthetics Society
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• v.4 no.3
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• pp.3-10
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• 2005

This paper aims at investigating the characteristics of discharge capacity according to lateral pressure, hydraulic gradient and deformation of drain materials. A series of experiments were conducted to achieve this objective. In experiments, fiver drain boards as well as harmonica and castle types of drain boards were installed in a rubber membrane, and clay in sully was filled around them. The test results showed that the harmonica type of drain boards have the greatest discharge capacity comparing to castle and fiber drain boards. The results also indicated that the hydraulic gradient has more effect on reduction of discharge capacity than the lateral pressure.

• Proceedings of the KIEE Conference
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• 1987.07a
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• pp.779-781
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• 1987

In phase controlled rectifier(PCR), harmonica are changed according to the variation of a firing angle. These harmonics are supplied with the input of the inverter. And then, inverter output comes about the harmonics combined with the switching frequency of the inverter. Hence the efficiency of the induction motor ia decreased by the harmonic of the inverter output. In this paper, it analyzed about an effect of these harmonics ia analyzed by a computer simulation. The total harmonic distortion (THD) in the case of PCR containing the ripple was considerably larger than THO of the DC source. Therefore, it was proved that the firing angle variation of PCR had to be limited.

• 재활복지
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• v.21 no.1
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• pp.233-252
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• 2017

The purpose of this study is to investigate the influence on respiration, oral motor and articulation using wind-instrument centered music therapy for patients with cervical cord injury who need continuous train of respiratory muscle. Three patients with cervical cord injury who needed continuous training of respiratory muscle were selected and post data was analyzed. The harmonica using both exhalation and inspiration was selected as an wind-instrument. Each session was taken 30 ~ 40 minutes, once a week from total 6 weeks with small group. Material about every session's work was provided for individual to maintain practice after program. Oral motor and articulation test was done to assess reflecting features of maximal expiratory flow and wind-instrument of factor related breath. Maximal expiratory flow has increased by average 25ml more, articulation has increased by 3.16 points more and the movement of oral motor has increased 11.67 points more than pre-test from the analyzation. In the comparison of the details, the increase of oral motor function was confirmed from scores on the jaw and tongue except for the lips. Based on the results of this study, this study suggests that wind-instrument centered music therapy will be a practical and effective intervention for respiratory rehabilitation in patients with cervical cord injury.

• Journal of the Korean Geosynthetics Society
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• v.12 no.1
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• pp.29-38
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• 2013

This paper presents the analysis condition of remediation technique of contaminated fine-grained soil and physical properties of bio-degradable drain for analysis site applicability using bio-degradable drain method. As the result, two kinds of developed degradable drains (cylindricality shaped and harmonica shaped) are satisfied the Korean Industrial Standard. And the cylindricality shaped drain has an excellent discharge capacity than that of another one. By the results of laboratory test, the citric acid is chosen as the washing agent because it has low toxicity, so it is able to minimize harmful influence to environment. Furthermore the subject contaminants were selected as Cd, Cu and Pb. Based on the field pilot test results, the most remedial efficiency is the use of reactive material applied in bio-degradable drain method with the process of injecting the washing agent and extraction of contaminated fluid.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.6C
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• pp.321-329
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• 2008

In this study, a series of column test as a way in order to make up for the weakness point of the conventional acceleration method were conducted to both propose the suction board drain method and grapes the specific improvement character of this method as a result of a sort of plastic drain board and a phase of vacuum pressure conditions. On this occasion, the study focused on computing the effective factors of the fittest Suction board drain method affected by each condition through confirming the settlement generated during the test, the water content reduction and stress increase effect occurred arising from the test, and the ratio of consolidation related to the improvement period. In accordance with the shape of core and that whether the core is attached to the filter(pocket or adhesion), the castle type of adhesion and the column type of pocket are more efficient than the others as a consequence of the test to find out the improvement effect depending on each drainage such as a castle type, coil type, harmonica type, column type of pocket and a castle of the adhesion. In case of the step suction pressure, the shorter the period of $-0.8\;kg/cm^2$ as a final step of the suction pressure is, the better the improvement is. In addition, the correlation between degree of consolidation per each suction pressure level and duration of application was drawn as a curve and the point of inflection on this curve was provided to determine the duration period to maximize the consolidation.