• 한국산학기술학회논문지
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• 제13권9호
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• pp.4045-4052
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• 2012

본 연구는 냉각 통증 모델을 이용해 간섭파전류와 경피신경전기자극간에 진통 효과를 비교하고자 하였다. 16명의 대상자는 6주기의 냉각 통증 모델 검사를 수행하였다. 대상자는 각 주기에서 차가운 물에 손을 담근 후 통증을 호소하는데 걸리는 시간을 이용하여 통증 역치와 시각적통증강도를 이용하여 통증 강도 및 통증 불편감을 측정하였다. 대상자에게 무작위로 각각 간섭파전류 주파수 50 Hz와 100 Hz, 경피신경전기자극 주파수 50 Hz와 100 Hz를 적용하였다. 본 연구에서 4가지 전기자극은 모두 통계적으로 유의하게 통증 역치가 증가하였으나 전기자극간에는 유의한 차이가 없었다. 그리고 통증 강도와 통증 불편감에서는 모두 유의한 차이가 없었다. 결론적으로 현재의 실험 조건에서 4가지 전기자극간에는 유의한 차이가 없었으나 주파수 50 Hz의 간섭파전류가 다른 전기자극보다 적용시 더 편안하였다.

• 디자인학연구
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• 제15권4호
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• pp.77-86
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• 2002

빛은 형상을 구체화시키고 표면의 특성을 전달한다는 측면에서 모델링, 렌더링, 애니메이션 등과 같은 3차원 컴퓨터 그래픽 어플리케이션이 제공하는 여러 기능 중에서 핵심이라고 할 수 있으며, 공간계획에 있어서 빛은 기능적인 측면과 미적인 측면에서 모두 고려해야할 대상으로서 공간연출의 제반 요소인 색과 질감, 조도를 결정하는 중요한 요소로 간주된다. 본 연구는 현실공간과 디지털공간을 분리해서 취급할 수 없는 현재의 디자인 현실에 관한 인식을 바탕으로, 컴퓨터를 매개로 하여 구축되는 디지털공간의 빛에 관한 특성을 규명하기 위하여 물리적 세계의 빛의 제 속성을 정리하고 이를 디지털 공간의 빛을 구현하기 위한 컴퓨터그래픽 기술과 비교 분석을 시도하였다. 인구의 결과로서 디지털 공간의 빛의 특성은 인식의 평면성, 제어 가능한 표면, 광원의 상징성, 무영광원, 비파동성으로 요약할 수 있으며, 향후 디지털 공간에 있어서 빛의 이용 방식에 대한 연구가 지속되어야 할 것이다.

• 한국지역사회생활과학회지
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• 제23권3호
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• pp.317-328
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• 2012

In this study, printing was introduced to the common dip-dyeing method of persimmon juice dyeing so as to develop two different colored persimmon juice dyed fabrics with printings of 'jorangmal' patterns (a national monument) instead of producing a plain textile. Following are the results of a comparative study between the persimmon dyed fabric and undyed fabric, both with printings, in terms of its properties, and hand values. Cotton and rayon were chosen as samples and were compared separately. Firstly, the samples showed differences in terms of clarity and visual sensation depending on the presence of persimmon dye, even if the same pattern and color was used. Secondly, the air permeability of two samples improved after persimmon dyeing even though their thickness increased, and their moisture regain increased as well in all humidity conditions. Thirdly, protectiveness against UV increased in dyed samples, and sweat, sunlight, and compound colorfastness improved in printed dye-fabrics compared to plain dyed ones. Therefore, printing proved to be effective in preventing discoloration. Fourthly, tensile linearity and resilience, bending rigidity, compressive linearity and resilience, and shearing stiffness increased more in the dyed samples compared to undyed ones. However, shearing recovery decreased in both dyed fabrics. Fifthly, the result of its hand value showed that Koshi value increased in all samples than undyed ones, whereas Fukurami, Numeri, and Softosa values decreased. Incorporating printing in persimmon dyeing process could expect creative outcomes not only in today's diverse fashion but in areas of arts or crafts as well.

• Journal of Yeungnam Medical Science
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• 제21권2호
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• pp.207-214
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• 2004

복압성 요실금에 동반되는 다양한 방광 자극증상은 빈뇨, 잔뇨감, 야간뇨, 절박뇨, 절박성 요실금, 배뇨통의 순이었으며, 이 증상들의 복합 정도가 많으면 삶의 질에 영향을 주고 있음을 알 수 있었다. 그리고 마이크로칩을 이용한 전기자극기는 특별한 부작용 없이 환자의 만족도가 높은 치료기로 생각되었으며, 복압성 요실금과 동반되는 야간뇨, 배뇨통 등의 방광 자극증상을 경감시킴으로 인해 현재의 배뇨 상태가 일상생활에 미치는 영향을 감소시키는 것을 관찰할 수 있었다.

• 대한한방내과학회지
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• 제34권2호
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• pp.122-133
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• 2013

Objectives : Burning mouth syndrome (BMS) is characterized by chronic pain or a burning sensation in the mouth. There is limited evidence available to provide clear guidelines for treating BMS patients and a variety of different treatments have been used. This study was designed to investigate the Effects of Korean medicine therapies on oral pain in patients with BMS. Methods : We surveyed 30 BMS patients who newly visited the Oral Diseases Clinic in the Kyung Hee University Korean Medicine Hospital from February 2012 to March 2013. When the patients visited the clinic for the first time, they were evaluated on sociodemographic characteristics, BMS questionnaire, severity of pain using visual analogue scale (VAS) and pressure pain threshold (PPT) of the acupuncture point CV17. After 3 weeks of Korean medicine therapies (acupuncture, electroacupuncture, pharmacopuncture and herbal medicine), they were re-evaluated with the VAS and the PPT. Results : After 3 weeks of Korean medicine therapies, 30 patients' oral pain improved and the PPT score on CV17 rose, which means decrease of qi-stagnation score. Conclusions : Korean medicine therapies were effective on oral pain in patients with BMS. To confirm the additional curative effect and evaluate the efficacy of each treatment, well-designed randomized controlled trials will be needed in the future.

• KIEAE Journal
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• 제16권5호
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• pp.65-71
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• 2016

Purpose : The solar shading device carries out roles in a reduction of the cooling load and an improvement of the thermal comfort of occupants by adjusting incident solar radiation. In addition, The shading device enhances the visual sensation comfort by controlling the optical properties. In order to improve building performance and comfort of occupancy, interests in application of the shading devices are getting increasing. This study investigated the application and effectiveness of the external shading device design using statistical analysis. The outcome of this paper could be utilized for the realization of status quo and for an estimation of effectiveness of the shading device Method : The period of data gathering was between 2003 and 2014 and total 459 cases of practical building project were investigated. Firstly, this study defined qualification of the shading devices; the shading device should have minimum protruding lengths of 150mm to outside and have the function of shading control. This paper investigated application rate of the shading device in real project, regional rate of application, annual change of application, materials and types. Result : The statistical analysis showed that the application rate of shading devices was 25.7% in total 459 building design projects. The application rate in central and southern region was 25.3% and 27.0% respectively. Meanwhile, Jeju region showed 22.2%, which was the lowest rate although this area needs more shading devices. The application number of the shading device was the smallest in 2007, but the rate gradually increased after that. The applications was the largest in 2014 due to growing interest of the shading devices in the building.

• 대한의용생체공학회:의공학회지
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• 제31권4호
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• pp.292-301
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• 2010

To restore visual sensation of blind patients, we have proposed a fully implantable retinal prosthesis comprising an three dimensionally (3D) stacked retinal chip for transforming optical signal to electrical signal, a flexible cable with stimulus electrode array for stimulating retina cells, and coupling coils for power transmission. The 3D stacked retinal chip is consisted of several LSI chips such as photodetector, signal processing circuit, and stimulus current generator. They are vertically stacked and electrically connected using 3D integration technology. Our retinal prosthesis has a small size and lightweight with high resolution, therefore it could increase the patients` quality of life (QOL). For realizing the fully implantable retinal prosthesis, we developed a retinal prosthesis module comprising a retinal prosthesis chip and a flexible cable with stimulus electrode array for generating optimal stimulus current. In this study, we used a 2D retinal chip as a prototype retinal prosthesis chip. We fabricated the polymide-based flexible cable of $20{\mu}m$ thickness where 16 channels Pt stimulus electrode array was formed in the cable. Pt electrode has an impedance of $9.9k{\Omega}$ at 400Hz frequency. The retinal prosthesis chip was mounted on the flexible cable by an epoxy and electrically connected by Au wire. The retinal prosthesis chip was cappted by a silicone to pretect from corrosive environments in an eyeball. Then, the fabricated retinal prosthesis module was implanted into an eyeball of a rabbit. We successfully recorded electrically evoked potential (EEP) elicited from the rabbit brain by the current stimulation supplied from the implanted retinal prosthesis module. EEP amplitude was increased linearly with illumination intensity and irradiation time of incident light. The retinal prosthesis chip was well functioned after implanting into the eyeball of the rabbit.

• 대한한방내과학회지
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• 제38권5호
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• pp.564-575
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• 2017

Objectives: This clinical report describes one patient with the clinical characteristics of burning mouth syndrome accompanied by oro-facial dyskinesia. Methods: The patient with burning mouth syndrome and jaw tremor was treated using the following Korean medicine treatments: the herbal medicines Yukgunja-tang-gami (六君子湯加味) and Sibak-tang-gami (柴朴湯加味) and acupuncture for 16 days, together with 10 Se-sim (Uncaria Ramulus et Uncus) pharmacopuncture procedures. Patient symptoms were evaluated daily using a Visual Analog Scale questionnaire and twice using the STAI (State-Trait Anxiety Inventory) questionnaire. Results: After the treatments, the oro-facial dyskinesia and burning sensation on the tongue were improved by 62.5%. The mental state of anxiety, regarded as the reason for these complaints, was also improved, based on the State-Trait Anxiety Inventory results (67/61 versus 57/52). We found that the improvement was better when combining Se-sim (Uncaria Ramulus et Uncus) pharmacopuncture with the conventional herbal medicine and acupuncture used in Korean medicine. Conclusion: Korean medicine treatments may be valuable for patients with burning mouth syndrome and oro-facial dyskinesia.

• Archives of Plastic Surgery
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• 제39권1호
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• pp.42-45
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• 2012

Background : Conservative techniques designed to block or delay the aging process have been utilized in various ways for many years. However, their effects can be relatively minimal and short-term in most cases compared to surgery. The objective of this study was to evaluate the efficacy and safety of gold thread implantation for the treatment of periorbital wrinkles. Methods : A total of 78 consecutive patients who showed mild to severe periorbital wrinkles were deemed appropriate candidates, including 69 women and 9 men ranging from 31 to 59 years (mean, 47 years). Six gold threads about 4 cm in length were inserted subdermally in each patient at intervals of about 0.5 cm. Follow-up assessments were performed 1, 4, and 12 weeks after the procedure. The efficacy was rated by the physician using the Wrinkle Severity Rating Scale and patients who made global assessments of changes in periorbital wrinkles using the Visual Analog Scale. Adverse events were monitored throughout the course of the study. Results : The patients showed significant improvements after the procedure. There were minor complications such as foreign body sensation in the eye (2.63%) and eye pain (1.32%) that improved spontaneously without any specific treatments. Conclusions : Subdermal implantation of gold thread improves the appearance of periorbital wrinkles and does not appear to have serious side effects. Insertion of gold thread may be an effective and safe method for facial rejuvenation.

• 사상체질의학회지
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• 제31권4호
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• pp.18-27
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• 2019

Objectives The purpose of this study is to estimate the differences in sensory responses(Visual, Auditory, Olfactory and Taste responses) among Sasang Constitution. Methods We recruited 90 healthy subjects who were divided into three groups(30 Soeumin, 30 Soyangin, 30 Taeeumin). First, subjects saw the photo of 'the dress' and were asked to answer three questions about 'the dress'. And we evaluated auditory function by a Tone Deaf Test(TDT) and Adaptive Pitch Test(APT). Olfactory function was evaluated by using Korean Version of Sniffing' Sticks(KVSS) Test II and Taste function was evaluated by using taste strips. Results and Conclusion 1. Overall, 60% of subjects described 'the dress' as blue/black(B/B); 23.3% as white/gold(W/G); 16.7% as something else, and the difference in the proportion of reporting color of 'the dress' was statistically significant. 2. As the result of analysis of taste strips according to Sasang constitution, there was significant difference that Soyangin scored higher than Soeumin in sweet taste score. 3. As the results of analysis of auditory function test(TDT, APT) and that of olfactory function test(KVSS Test II) according to Sasang constitution, there were no statistically significant differences.