• 한국소음진동공학회논문집
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• 제20권9호
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• pp.822-827
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• 2010

In this study, it is experimentally investigated how bell acoustics are influenced by the internal cavity of the bell and the gap between the bell bottom and the floor. Acoustic transmission function and natural frequency of a test bell are measured and analysed. Experimental study is conducted to evaluated how the resonance effect influences the bell sound and how the bell sound is different according to the striking condition and the measurement direction. Acoustic resonance frequency of the cavity-gap system is predicted by boundary element analysis using SYSNOIS and the validity of the predicted result is verified by experiment. The result of the study could be applied to determine the optimal gap size which makes the bell sound strong and long.

• 한국멀티미디어학회논문지
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• 제18권8호
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• pp.968-979
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• 2015

In this paper, we study a vibration bell App which shows waiting sequence numbers by utilizing smartphones to solve an inconveniently long waiting time from ordering to getting foods in restaurants and coffee shops. Unlike existing independently developed hardware and software, the vibration bell App is developed to manage and integrate customer management service, POS service in shops, and group shop management services. The functions of the vibration bell App include two-way communications based on NFC- issuing waiting sequence numbers and electronic coupon, showing event information, and transferring user information. Furthermore, the user's personal information is minimized by recognizing the pre-existing information of the user's smartphone. Replacing the shop's vibration bell system with the vibration bell APP, the shops can reduce the cost of construction and maintenance by up to 1/10, compared to the cost of for existing vibration bell systems. Moreover, the customer's preference and current sales trend can be easily figured out. Thus, it will have a great effect on the future marketing strategies.

• Journal of Acupuncture Research
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• 제31권1호
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• pp.149-158
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• 2014

Objectives : The aim of this study is to investigate the influence of anxiety and depression on motor recovery of acute Bell's palsy to estimate how much psychological factors affect the clinical prognosis. Methods : A total of 20 inpatients with acute unilateral Bell's palsy within 1 week of onset participated in this study. The severity of participants' facial palsy was measured by Yanagihara(Y-system) score, FDI and House-Brackmann scale at the time of 1 week and 3 weeks from the onset. The motor recovery of acute Bell's palsy is defined as ${\Delta}Y$-system during 2 weeks. Beck anxiety scale(BAI) and the center for epidermiologic studies depression scale(CES-D) were adopted to assess anxiety and depression, respectively. Correlation analysis and linear regression analysis were conducted between ${\Delta}Y$-system and prognostic factors including anxiety and depression. Results : Significant associations were found between ${\Delta}Y$-system and depression(CES-D) but no significant associations were found between ${\Delta}Y$-system and other prognostic factors, hypertension, diabetes, postauricular pain, disgeusia, age, degree of initial palsy and anxiety(BAI). And a regression equation with 0.295 for coefficient of determination was obtained. Through this analysis, the ${\Delta}Y$-system can be predicted using regression equation which cover 29.5 % of depression index(CES-D). Conclusion : Depression is a significant clinical prognostic factor on motor recovery of acute Bell's palsy. So, Bell's palsy treatment should be combined with psychological care and support.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.456-460
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• 2008

`디지로그 북 (Digilog Book)' 은 아날로그 책과 디지털 콘텐츠의 장점을 통합함으로써, 아날로그적 감성과 디지털 오감을 함께 느끼도록 한다. 본 논문에서는 디지로그 북의 한 예로써, 범종 체험 시스템 구현에 관한 기술적인 사항을 언급한다. 시스템 구현은 사용자에게 다감각 피드백 (multisensory feedback) 을 제공, 책에 마커를 그림 마커로 대체하는 것, 책의 2D 평면에서 범종이 나올 의 효과, 범종 관찰을 위한 가상버튼을 손으로 누를 수 있도록 하는 부분, 감각형 객체를 이용하여 범종을 타종하는 것, 그리고 마지막으로 감각형 객체를 이용하여 범종의 특정 부분을 포인팅하여 특정 설명을 볼 수 있는 것을 포함한다. 본 논문에서 구현된 범종 체험 시스템은 사용자에게 우리나라의 문화유산을 체험해 볼 수 있는 교육적인 콘텐츠를 제공할 수 있다.

• 동의생리병리학회지
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• 제26권5호
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• pp.788-792
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• 2012

The purpose of this report was to show that the oriental medical treatment is effective on recurrent bell's palsy. We investigated 1 patient with recurrent bell's palsy who was a case of recurrent ipsilateral bell's palsy with four distinct episodes over the past 11 years. As a treatment, Ligigepung-san(Liqiqufeng-san), Acupuncture, and Moxa were tried upon the patient for 40 days in order to relieve the symptom of palsy. In terms of observing the changes of symptoms, the progress of patient's condition was evaluated periodically by using the House-Brackamnn's grading system. In accordance with the observation under House-Brackamann's grading system, the patient's facial nerve palsy had gradually improved throughout the treatment. Therefore, this report suggests that Ligigepung-san (Liqiqufeng-sa n), Acupuncture, and Moxa are probably effective in the treatment of recurrent Bell's palsy.

• 대한한방부인과학회지
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• 제21권3호
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• pp.245-256
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• 2008

Purpose: Bell's palsy is a peripheral facial palsy of unknown etiology. During pregnancy, there is an increased incidence of Bell's palsy. Due to the nature of pregnancy, it is unlikely to treat Bell's palsy during pregnancy. The purpose of this study is to report on 3 patients with Bell's palsy during pregnancy, who improved by oriental medical treatment. Methods: The patients who had Bell's palsy during pregnancy were treated with oriental medical treatment such as herbal medication and acupuncture therapy. House-Brackmann facial nerve grading system was used to estimate the efficacy of these treatments. Results: After the oriental medical treatment, the clinical symptoms of Bell's palsy during pregnancy were improved. Conclusion: This case study shows that the oriental medical therapy is effective in treating Bell's palsy during pregnancy. Further systematic studies and specific guidelines of Bell's palsy during pregnancy would be of much value.

• Journal of Acupuncture Research
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• 제19권5호
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• pp.73-91
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• 2002

Objective : The purpose of this study is to assess treatment of children's bell's palsy based on physiological and pathological character. Methods : At the age of 0 to 15, 30 bell's palsy out-patients who visited and treated more than 3weeks at the Department of Acupuncture & Moxibustion, Dong-indang Oriental Medicine Hospital, from 07-01-2001 to 06-30-2002. They were treated with Acupuncture, Herb, Aqua-acupuncture, Physical therapy and measured by HBGS(House-Brackmann Grading System) and DEFS(Detailed of Facial Symmetry of Phillsbury and Fisch) at visit and 3 weeks after. Result and Conclusion : Children's bell's palsy is mostly caused by recent upper respiratory infection and developed most frequently on March, September, seasonally in Spring, Autumn. A group of children's bell's palsy was marked much higher than a group of adult's bell's palsy conducted by Kim's report with oriental medicine in treatment outcome. But we discovered that there was not the signifcant difference between two groups.

• 한국음향학회지
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• 제30권4호
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• pp.223-230
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• 2011

한국종은 지면으로부터 일정한 간극을 두고 매달리며, 종 아래에 명동이라고 불리는 독특한 음향학적 요소를 갖고 있다. 간극과 명동의 적절한 설계는 공명효과에 의하여 종소리를 극적으로 증폭시킨다. 종체의 내부공동과 간극, 그리고 명동으로 구성된 음향공동계는 공명주파수와 모드를 갖는데, 공명주파수가 종체의 고유진동수에 일치하게 되면, 그 주파수성분이 크게 증폭된다. 이 연구는 성덕대왕신종을 대상으로 간극효과를 고려한 명동의 공명조건을 처음으로 제시한다. 공명조건을 구하기 위하여 신종의 실제 치수를 사용하여 SYSNOISE를 이용한 경계요소해석을 수행하였다. 또한, 계절에 따른 기온의 차이가 공명조건에 어떠한 영향을 미치는가를 규명하고, 가변형 명동의 개념을 제시함으로써, 현장에서 온도차를 보정하여 정확한 공명조건을 구현시킬 수 있는 방안을 제공한다.

• 한국산학기술학회논문지
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• 제21권7호
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• pp.176-183
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• 2020

구조함은 수색 및 구조작업을 위하여 크게 세 가지 형태의 잠수체계(Diver Stage Diving, Wet Bell Diving 및 Scuba Diving)를 보유하고 있다. 어떠한 잠수체계를 활용하더라도 잠수요원이 잠수작업 완료 후 상승 시에는 잠수병 예방을 위하여 잠수작업수심 및 잠수 총 시간에 해당하는 감압표에 따라 감압절차를 준수하여야 한다. 감압절차는 크게 수중감압방법과 수중 및 함상감압을 병행하여 수행하는 방법으로 나뉘게 된다. 특히 수중 및 함상감압을 함께 수행하는 방법의 경우 U.S Navy Diving Manual에 따라 수중감압에서 함상감압으로 넘어가는 단계인 Surface Interval이 5분을 초과하지 않아야 한다. 하지만 실선 테스트결과 Wet Bell Diving에서 Surface Interval이 5분을 초과하는 문제점이 발생하였다. 이에 본 논문에서는 모든 가능한 원인을 식별하여 원인분석을 실시하고, 이를 바탕으로 개선된 Wet Bell Diving의 측정결과를 나타내었다. 그 결과 개선된 잠수체계의 실선 테스트에서 Surface Interval이 5분 이내 만족함을 확인하였다. 본 논문의 연구결과는 향후 잠수체계의 운용 및 개선에 유용한 자료로 활용될 것으로 판단된다.

• 동의생리병리학회지
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• 제28권1호
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• pp.89-93
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• 2014

The aim of this study was to investigate that thermal imaging is objective and effective to evaluate the severity of Bell's palsy. We investigated 19 cases of patients in college of Oriental Medicine, Iksan Oriental medical hospital at Wonkwang university who were diagnosed with Bell's palsy. The degree of palsy was evaluated with House-Brackmann grading system(HBGS) before treatment, then the thermal difference of the face was calculated by thermal imaging, and finally the correlation between HBGS and thermal difference was analyzed. The significance correlation was found between HBGS and thermal imaging's thermal difference. According to the images taken from 17 patients' DITI's temperature value and HBGS's palsy grade, they significantly were correlated. As thermal imaging's thermal differences got larger in number, the palsy grade had increased. These results suggest that thermal imaging identified to be a relatively objective examination method for evaluating the severity of Bell's palsy.