• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제39권6호
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• pp.292-296
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• 2013

Verruciform xanthoma (VX) is a rare, benign lesion that presents in the oral cavity, skin, or genital organs as a verrucous, papillomatous, or flat papule with varying colors. VX has indistinct clinical features, making histopathological examination necessary for a definitive diagnosis. Histologically, VX is characterized by parakeratosis, rete ridges with uniform depth, and an accumulation of the foam cells, which are also known as the "xanthoma cells". These foam cells test positive for antibodies, such as CD-68 and vimentin; it is thought that VX foam cells are derived from the monocyte-macrophage lineage, and that VX's pathogenic mechanism is partly related to an immune mechanism. Nevertheless, the pathogenesis of VX remains unclear. VX can be treated by surgical excision; other medical, chemical, and radiological treatments are not required postoperatively. Recurrence and malignant transformation of VX are rare. Two patients, each with a mass of unknown origin on the palatal gingiva, were presented at our clinic. Excisional biopsies of the masses were performed for a histological diagnosis after clinical and radiological examinations. Histological examination confirmed a diagnosis of VX in both cases.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2011년도 춘계학술발표대회 논문집
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• pp.36-41
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• 2011

BIPV system that can alternate building envelope by making materials of PV module should be considered in initial design step for applying PV system efficiently in office building. Mean while, area of the building skin also increases as the number of floors increases, but the valid area that can apply BIPV system in effect decreases relatively. Despite of this weak point, installing BIPV system is still being evaluated as the only measure left that can reduce electronic energy consumption in the building. Therefore, the impact on building energy consumption according to the increase of the number of floors when BIPV system is applied in the building was analyzed. And it will be used as basic information for application of BIPV in office building. Conomic about application of BIPV is interpreted to be secured within the 10 story high. Forover the 11 floors, the methods of increasing the contribution ratio produced by BIPV system through the optimization of install angle and increase in install area of south, high efficiency should be considered. The ways to reduce basic load by integrated design with another renewable energy besides BIPV should be found. Later, the study on the total building energy comsumption with PV generation according to the various type of the basic load and ratio of the width and depth will be performed based on this study.

• 대한두개안면성형외과학회지
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• 제15권1호
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• pp.1-6
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• 2014

Background: The ear is composed of elastic cartilage as its framework, and is covered with a thin layer of skin. Auricular reconstruction using autogenous cartilage in microtia patients requires delicacy. This paper reports clinical experiences related to elevation of reconstructed ear in the last 11 years. Methods: This study was based on 68 congenital microtia patients who underwent auricular elevation in our hospital. Among these 68 patients, 47 patients were recruited. We compared the differences in the ear size, auriculocephalic angle, and conchal depth with those in the opposite ear, and the patients' satisfaction levels were investigated using a survey. Results: The difference in the sizes of the two ears was less than or equal to 5 mm in 32 patients, 5 to 10 mm in 10 patients, and greater than or equal to 10 mm in 5 patients. The difference in the auriculocephalic angles of the two ears was less than or equal to 10 degrees in 14 patients, 10 to 20 degrees in 26 patients, and greater than or equal to 20 degrees in 7 patients. The difference in the conchal depths of the two ears was less than or equal to 5 mm in 24 patients, 5 to 10 mm in 19 patients, and greater than or equal to 10 mm in 4 patients. The average grade of 3.9 points out of 5 points was obtained by the patients with satisfactory surveys. Conclusion: We could make enough protrusion and maintain the three-dimensional shape for a long time to satisfy our patients.

• 한국항해항만학회지
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• 제33권3호
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• pp.227-233
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• 2009

본 실험 연구는 공기분사공법의 오픈케이슨기초의 주면마찰력 저감효과에 대해 규명하기 위해 이루어졌다. 연육교 건설을 위해 기초로 사용된 공기구멍이 설치된 대구경 케이슨이 본 연구를 위해 이용되었다. 공기분사공법을 사용 시, 침하 시간을 줄일 수 있었으며 일반전인 방법으로 도달할 수 없는 깊이까지 침하를 시킬 수 있었다. 또한, 예상했던 것 보다 두 배 이상의 주면마찰저항력 저항 저감 효과를 얻었으며, 이런 장점 외 추가적인 외부의 재하하중 없이도 케이슨을 침하시킬 수 있음을 보여주었다. 그 외 오픈케이슨 침설 시 발파에 의한 케이슨 손상을 공기분사공법을 이용하면 방지할 수 있음을 보여주었다.

• The Korean Journal of Pain
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• 제20권2호
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• pp.111-115
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• 2007

Background: Selective diagnostic blocks of the medial branches of the dorsal primary ramus are usually performed under the guidance of fluoroscopic or computed tomography. Recently, however, ultrasound guidance has been suggested as an altemative method. In this study, the distances between the vertebral structures were measured and compared with the values measured using magnetic resonance imaging (MRI) to assess the clinical feasibility of using ultrasound-guided block in Korean patients. Methods: Five male and 15 female patients were enrolled in this study. The target point of the medial branch block in our study was the groove at the base of the superior articular process, We measured the depth from the skin to the target point at the transverse process (d-TP) and to the most superficial point of the superior articular process (d-AP). Results: The d-TP and d-AP values measured under ultrasound guidance were concordant with the values measured using MRI. Conclusions: The images of the bony landmarks obtained under ultrasound examination could be useful for ultrasound-guided lumbar medial branch block.

• 한국항공우주학회지
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• 제36권6호
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• pp.587-593
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• 2008

본 연구의 목적은 신체 조직의 손상을 최소화할 수 있는 경피(transdermal) 및 국부적인(topical) 약물전달을 가능하게 하는 마이크로 입자가속시스템 개발에 있다. Ballistic 역학을 기반으로 하는 본 방법을 통하여 체순환을 위한 경피 및 국부적 약물 전달이 가능하다. 얇은 금속 포일의 한 쪽 면에 마이크로 입자들을 얹어놓고 뒷면에 레이저를 조사하면 충격파가 발생하고, 이 충격파는 포일을 통과하며 포일의 끝에서 금속-공기간의 acoustic impedance 차이로 expansion wave로 반사되어 포일이 반대 방향으로 변형을 일으키게 한다. 이 순간적인 변형으로 인해 포일에 붙어있던 마이크로 입자들이 가속되어 튕겨 나가게 된다. 입자들이 가속되는 속도가 굉장히 크기 때문에 이들은 신체 조직을 침투할 만한 충분한 운동량을 갖고 있다. 입자들의 침투 여부를 확인하기 위해 우리는 5${\mu}m$ 크기의 코발트 입자들을 연조직을 묘사하는 젤라틴에 가속시켰으며, 주목할 만한 침투 깊이를 얻으며 실험에 성공하였다.

• 동의생리병리학회지
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• 제29권3호
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• pp.203-217
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• 2015

Scolpendra subspinipes (centipede) is pungent in flavor, activates the channels to stop pain, and, removes toxins and resolves masses. So it has been used as a folk remedy. We researched folk remedies which used centipede as a single medicine and results of its prior clinical and experimental study, and figured out that centipedes are effective on ulcerative disease, herpes zoster, clavus, insect bite, inflammatory disease, furunculus, pain disease by external therapy, and oral administration is effective on anti-cancer such as hepatoma and uterine cancer, cerebrovascular disease, inhibition of atherosclerosis, sedation of central nervous system, antipyretic action, and anti-inflammation, and centipede Herb-Acupuncture is effective on inflammatory disease and pain disease. Centipede preparation materials for external therapy were sesame oil, perilla oil, vinegar, salt, and, burnt alum. Fumigation of centipede treated paronychia, pertussis, and hemorrhoids. For the external therapy, the way of centipede powder mixing with other materials has been used. It is needed that we use dusted powder to make skin absorb its ingredients more easily, and we study intensely minor ingredients to make centipede components absorbed more effectively and do pharmacological action. Also, fumigation, a kind of another external therapy, is considered to be effective treatment of upper respiratory infection like pertussis, so it needs an in-depth study on centipede fumigation.

• 한국육종학회지
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• 제41권1호
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• pp.61-67
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• 2009

"Early Valley", is an early maturing potato cultivar with high yield potential. "Early Valley" is a clonal selection resulting from the cross between 'Suncrisp' and 'A87109-10'. It has medium plant height and light green foliage. "Early Valley" has medium flowering habit and white flowers. Tubers are smooth, yellow skin, light yellow flesh, round tuber shape, medium eye depth, and medium dormancy and good keeping quality. It has stable yield under wide range of climatic conditions. "Early Valley" is resistance to late blight, but moderately susceptible to common scab and hollow heart. This cultivar is also resistant to potato rotting at harvesting during the raining season. "Early Valley" has high level of antioxidant activity (about three times higher) and vitamin C (higher by 40%) than the 'Superior'. This cultivar has high level of tuber uniformity and capable of yielding 36.56 t/ha which is 17.07% higher than the control potato cultivar 'Superior' under optimum agronomical practices.

• 대한조선학회논문집
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• 제54권4호
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• pp.312-320
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• 2017

This paper deals with the development of structural test facility for the strength assessment of marine leisure boat built from carbon fiber reinforced plastics (CFRP) materials. The structural test facility consists of test jig, load application and control system, and data acquisition system. Test jig, and load application and control system are designed to accommodate various size and short span to depth ratios of single skin, top-hat stiffened and sandwich constructions in plated structural format such as square and rectangular shapes. A lateral pressure load, typical and important applied load condition to the plates of the hull structure for marine leisure boat, is simulated by employing a number of hydraulic cylinders operated automatically and manually. To examine and operate the structural test facility, five carbon/epoxy based FRP square plates having the test section area of $1m^2$, which are part of CFRP marine leisure boat hull, are prepared and they are subjected to monotonically increasing lateral pressure loads. In the test preparation, considering the symmetry of the plates geometry, various strain gauges and linear variable displacement transformer are used in conjunction with data acquisition system utilizing LabVIEW. From the test observation, the responses of the CFRP hull structure of marine leisure boat are understood by obtaining load to deflection and strain to load curves.

• 중환자간호학회지
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• 제12권3호
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• pp.50-60
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• 2019

Purpose : The purpose of this study was to explore and describe the meanings of hands among clinical nurses. Methods : A descriptive qualitative study design was used. Participants were 1,048 nurses working in a tertiary hospital in G city. From April to May 2018, an open-ended survey on how nurses felt about their hands and what their hands meant to them was conducted. The collected data were analyzed using MAXQDA 2018 version as well as content analysis. Results : A total of 1,048 pieces of data were analyzed, and 2,094 units of analysis were categorized based on their attributes, resulting in physical, emotional, and social domains. The data in the social domain were reported in a narrative format; thus, they were analyzed using content analysis. Three themes and eight sub-themes were elicited. The three themes included "meaning as an instrument," "meaning of infection control," and "meaning of caring." Conclusion : Nurses imbue essential meanings of caring on their hands even though they face negative skin symptoms. Furthermore, nurses understand the importance of hand hygiene on infection control. The findings of this study provide an in-depth look into nurses' perceptions of their hands.