척수견인증을 동반한 Faun tail 1예

박하나,김주영,정예리,김수찬 대한피부과학회 2004 大韓皮膚科學會誌 Vol.42 No.6

구성주의 조각을 응용한 헤어조형에 관한 연구

박하나,김정희 한국패션디자인학회 2003 한국패션디자인학회지 Vol.3 No.2

조각의 조형성을 응용한 헤어 아트에 관한 연구

박하나 코리아뷰티디자인학회 2006 코리아뷰티디자인학회지 Vol.2 No.1

다발성 혈관지방종 1예

박하나,천승현,최응호,안성구 대한피부과학회 2003 대한피부과학회지 Vol.41 No.11

Angiolipomas are subcutaneous tumors composed of a mixture of adipocytes and blood vessels. The tumor resembles lipomas clinically, but develops in young adults, and favored sites for this tumor are the arms and the trunk. They are usually multiple, often painful or tender and tend to be small. There have been 4 reported cases of angiolipoma in Korea. But they are mostly few, small and tend to be limited in trunk or upper extremities. Then we report a case that the total number of the masses is over 100 and multiple isolated masses up to 12cm in size were found on the whole body. The treatment with triamcinolone intralesional injection in the only one mass showed partial response but the other trial with enoxaparin didn't. (Korean J Dermatol 2003;41(11) : 1554-1556)

학술대회 자유연제 초록 : 테스토스테론이 피부장벽에 미치는 영향

박하나,안성구,이승헌 한국피부장벽학회 2004 한국피부장벽학회지 Vol.6 No.1

칼 라르손의 작품집 <Ett Hem>에 나타난 스칸디나비아 스타일- 실내 장식을 중심으로 -

박하나 한국일러스아트학회 2018 조형미디어학 Vol.21 No.1

This study investigates Carl Larsson, a Swedish national artist and cultural revolutionary, and explores the characteristics of Scandinavian style through the watercolor painting collection <Ett Hem>. For this study, I studied Carl Larsson's life and the art movements of the times he had lived. Based on this study, I examined the interior decorative culture of Lilla Hyttnäs with his wife Karin Larsson at that time. As a result of analyzing the features of Scandinavian style through <Ett Hem>, first, Lilla Hyttnäs expresses the image of the country with the decoration culture reflecting the traditional folk culture and art and originally combines the Swedish style and foreign advanced styles. This suggests an ideal residential model in Scandinavia. Therefore, Scandinavian countries was able to build a competitive style that cultivated their own style. Second, Carl Larsson's house was a living space that changed and grew with his family members. He pursued simplicity and comfort based on practicality. It has helped define the direction of Scandinavian design in the 20th century, with its philosophy of "Beauty for all" and "More beautiful things than everyday life" and still has its influence today. Third, the desire for light in the Scandinavian geographical characteristics is not only visually bright, but also symbolic of the source of warmth, which is related to the consciousness of pursuing the natural life and life of the Nordic people. Finally, the Scandinavian origins originate from a natural-friendly background and are an important determinant of the spirit and culture of the Nordic people. 본 논문은 스웨덴의 국민 화가이자 문화 혁명가라고 불리는 칼 라르손에 대하여 연구하고 수채화 작품집 <Ett Hem>에 나타난 스칸디나비아 스타일의 전형성을 탐구하여 그 특징을 분석하였다. 이론적 고찰로 역사적 문헌 및 서적을 통해 칼 라르손의 생애와 활동했던 시대의 예술 사조 및 스칸디나비아 스타일의 형성 배경과 특징을 다루었다. 이를 바탕으로 칼 라르손과 그의 부인 카린 라르손과 함께 꾸민 릴라 히트내스의 장식 문화를 살펴보았다. 작품집 <Ett Hem>을 통해 스칸디나비아 스타일의 특징을 분석한 결과 첫 째, 릴라 히트내스는 전통 민속 문화와 예술을 반영한 장식으로 자국의 이미지를 표현하여 전통을 기반으로 한 스웨덴적인 양식과 외국의 선진 양식들을 주체적으로 수용하여 독창적이고 이상적인 주거모델을 제시하였다. 이에 자국의 문화를 함양한 경쟁력 있는 스타일을 구축할 수 있었다. 둘 째, 칼 라르손의 집은 가족 구성원들과 함께 변화하고 성장하는 살아있는 공간으로 당시의 유행하던 양식을 배제하고 실용성에 근거한 소박함과 안락함을 추구하였다. 따라서 “모두를 위한 아름다움(Beauty for all)”과“일상생활을 보다 아름답게(More beautiful things than everyday life)”를 그 철학으로 하고 있는 20세기 스칸디나비아 디자인의 방향을 정의하는데 도움이 되었으며 오늘날에도 여전히 그 영향력이 미치고 있다. 셋 째, 스칸디나비아 지역의 지리적 특성에서 나타난 빛에 대한 열망은 시각적으로 밝음뿐만 아니라 온기의 원천 이상을 상징하는 것으로 북유럽 사람들의 자연적인 삶과 생활을 추구하는 의식과도 관련이 있다. 마지막으로 스칸디나비아 사람들의 전원적 근원은 자연 친화적인 배경에서 비롯된 것으로 북유럽 사람들의 정신 및 문화를 결정짓는 중요한 요소이다.

Optimization of exposure parameters and relationship between subjective and technical image quality in cone-beam computed tomography

박하나,민창기,김경아,고광준 대한영상치의학회 2019 Imaging Science in Dentistry Vol.49 No.2

Purpose: This study was performed to investigate the effect of exposure parameters on image quality obtained using a cone-beam computed tomography (CBCT) scanner and the relationship between physical factors and clinical image quality depending on the diagnostic task. Materials and Methods: CBCT images of a SedentexCT IQ phantom and a real skull phantom were obtained under different combinations of tube voltage and tube current (Alphard 3030 CBCT scanner, 78-90 kVp and 2-8 mA). The images obtained using a SedentexCT IQ phantom were analyzed technically, and the physical factors of image noise, contrast resolution, spatial resolution, and metal artifacts were measured. The images obtained using a real skull phantom were evaluated for each diagnostic task by 6 oral and maxillofacial radiologists, and each setting was classified as acceptable or unacceptable based on those evaluations. A statistical analysis of the relationships of exposure parameters and physical factors with observer scores was conducted. Results: For periapical diagnosis and implant planning, the tube current of the acceptable images was significantly higher than that of the unacceptable images. Image noise, the contrast-to-noise ratio (CNR), the line pair chart on the Z axis, and modulation transfer function (MTF) values showed statistically significant differences between the acceptable and unacceptable image groups. The cut-off values obtained using receiver operating characteristic curves for CNR and MTF 10 were useful for determining acceptability. Conclusion: Tube current had a major influence on clinical image quality. CNR and MTF 10 were useful physical factors that showed significantly associations with clinical image quality.

키토산 나노 섬유 지지체의 제작과 생체공학적 응용

박하나,이정복,권일근 한국생체재료학회 2010 생체재료학회지 Vol.14 No.2

Functional biomaterial research has been directed toward the development of improved scaffolds for tissue engineering. Many biodegradable and biocompatible polymers both synthetic polymers and natural polymers have been used to make scaffolds. Among the naturally derived polymers, chitosan which is deacetylated derivative of chitin, is widely used for biomedical applications such as tissue engineering scaffolds, drug delivery, and wound dressing due to their unique biological properties such as biocompatibility, biodegradability, anti-bacterial, and non-toxicity. In the recent years, electrospinning has been used to be a novel technique to fabricate nano/micro fibers. These nano/micro fibers have been applied in biomedical fields as tissue engineering scaffold because of their high surface area and porosity. In this reason, there has been a growing interest in electrospinning using chitosan in order to improve similarities to natural tissue. This article reviews the recent and relevant reports of the chitosan nanofibers fabricated by electrospinning and their biomedical applications.

Mini-implant를 이용한 편측성 구치부 설측교차교합의 치험례

박하나,장나영,강경화,김상철 대한치과교정학회 2013 대한치과교정학회 임상저널 Vol.3 No.2

한국인 눈꺼풀 악성종양의 임상 양상

박하나,정수경,조원경,백지선,양석우,Ha Na Park,Su Kyung Jung,Won Kyung Cho,Ji Sun Paik,Suk Woo Yang 대한안과학회 2014 대한안과학회지 Vol.55 No.3

Purpose: To determine the clinical characteristics of patients with malignant eyelid tumors in Korea. Methods: We performed a retrospective review of the medical records of 73 patients with malignant eyelid tumors who were histologically diagnosed at Seoul St. Mary's hospital from April 2004 to September, 2012 and followed for 6 months or longer. Results: Of 73 cases, 41 (56.2%) were diagnosed as basal cell carcinoma, 17 (23.3%) as squamous cell carcinoma, 11 (15.1%) as sebaceous gland carcinoma, 3 (4.1%) as malignant melanoma, and 1 (1.4%) as basosquamous cell carcinoma. The mean age at diagnosis was 68.4 ± 11.5 years. Tumors developed more commonly on the lower lid (54.8%). Most cases were treated by complete resection of tumors and eyelid reconstruction (95.9%). The prognosis of patients with basal cell carcinoma and squamous cell carcinoma was good, while that of the other tumors was relatively poor. Conclusions: The most common diagnosis was basal cell carcinoma (56.2%). Recurrence after complete surgical excision and reconstruction was uncommon. J Korean Ophthalmol Soc 2014;55(3):348-353