Usefulness of the Keystone Flap in Lower Extremity Reconstruction in Patients with Anterior Tibial Artery Variation: A Case Report

Ahn Yujin,Shin Hea Kyeong 대한창상학회 2024 Journal of Wound Management and Research Vol.20 No.1

Reconstruction of lower extremity wounds in patients with abnormalities in vascular anatomy is often challenging. A 71-year-old man was admitted to our hospital after sustaining two contact burns on his right leg while sleeping on an electric blanket. Fourth-degree burns amounting to approximately 3% of total body surface area were confirmed, with eschar formation on the right instep and pretibial area. Both wounds on the lower leg required flap reconstruction. In addition, the patient had anterior tibial artery hypoplasia. We considered a two-flap reconstruction method that should leave the source artery and muscle intact and generally has a good prognosis. A peroneal artery perforator-based keystone flap was used on the right lower leg, and a right dorsalis pedis island flap on the foot dorsum. Surgery was performed successfully, and at 8 months postoperatively, the patient walked naturally and had no complaints of discomfort. Additionally, cosmetic results were satisfactory. Accordingly, we introduce a surgical method that is useful in cases similar to that described.

Toenail Paronychium Flap: Novel Surgical Approach for Ingrowing Toenail and Review of the Literature of Conventional Surgical Methods

Ahn Yujin,Lee Hyunrok,Eo Surak,Shin Heakyeong 대한성형외과학회 2023 Archives of Plastic Surgery Vol.50 No.3

Ingrown toenails are most common among school-age children and adolescents though they can be observed at any age. Causes of ingrown toenails are increased curvature, trauma, and external pressure. Treatment of ingrown toenails can be broadly characterized as conservative and surgical. Conservative treatment can be performed using various methods, such as a gutter splint, dental floss, and cotton. Surgical treatments may be divided into two main approaches; narrowing of the nail plate and debulking of periungual tissues. However, these various conservative and surgical treatments have high recurrence rates, and thus, the author used a permanent surgical method based on the use of a paronychium flap to treat a 15-year-old male adolescent with excessive periungual tissues and curved ingrown toenails who did not improve despite conservative and several surgical treatments over 4 years. Subsequently, toenail shape was maintained without recurrence 22 months after surgery, and there were no complaints of inflammation or pain while walking. This simple surgical method can be performed on patients with advanced ingrown toenails due to excessive periungual tissues and nail curvature and can be expected to have permanent effects.

한국어 교육을 위한 용언 활용 규칙의 기술 방식 고찰

안유진 ( Ahn Yujin ),박새미 ( Park Saemi ),김태경 ( Kim Tae-kyung ) 한국어교육학회(구 한국국어교육연구학회) 2017 국어교육 Vol.0 No.157

Describing Verb Conjugation in Korean Language Education. To learn how verbs conjugate is one of the most important and difficult task for foreign learners of Korean language. This study examined how regular and irregular conjugation is dealt in Korean grammar guide books for Korean language teacher and Korean grammar textbooks for foreign learners. As results, we found that the concept of irregular verbs, in both its definition and scope, were often not coherent. In addition, a lot of types of conjugation seemed to be undescribed. To solve these problems, this study suggested the classification of conjugation. We categorized them into two basic types(phonologically and lexically conditioned) and presented conjugation list for each category. We also suggested that all types of conjugation should be designated according to stem-final forms rather than alternational forms.

단거리 화물 운반에 용이한 공유 소형 픽업 모빌리티 디자인 제안

안유진(Ahn, Yujin),배은준(Bae, Eunjoon),이상진(Lee, Sangjin) 한국디자인학회 2021 한국디자인학회 학술발표대회 논문집 Vol.2021 No.11

뱀버러의 『소금 먹는 사람들』에 나타난 우머니즘적 치유와 영성 연구

안유진 ( Yujin Ahn ) 한국신종교학회 2021 신종교연구 Vol.44 No.-

본 논문은 우머니즘의 관점에서 토니 케이드 뱀버러의 소설 『소금 먹는 사람들』에 나타난 등장인물의 치유유형을 분석하고, 정치, 생태, 영성의 치유적 차원을 탐구하고자 한다. 뱀버러의 우머니즘은 흑인 여성뿐만 아니라 흑인 남성도 포용하고, 나아가 제3세계 여성들과의 연대를 강조한다는 점에서 기존의 페미니즘과는 구별된다. 뱀버러의 『소금 먹는 사람들』은 1970년대 미국의 사회문화적 상황 속에서 흑인여성 사회운동가 벨마를 주인공으로 그녀의 소진과 치유에 관한 서사를 보여준다. 작품에서 개인으로서 흑인 여성은 흑인 공동체와 연결될 때 전인적인 치유가 가능하고, 제3세계 여성들과의 통합과 흑인 전통신앙과 토착문화와 유기적으로 연결되었을 때 비로소 새로운 의식을 가진 존재로 새롭게 태어난다고 주장한다. 또한, 작품은 정치, 생태, 영성의 문제를 균형 있게 다룸으로써 세계에 대한 통합된 인식을 보여준다. 흑인 공동체의 온전함은 우머니즘과 아프리카 전통과 종교에 의해 회복된다. 벨마가 치유 받는 과정에서 조상의 기억과 흑인 여성으로서의 영성을 되찾음으로써 공동체 전체가 치유 받은 벨마를 통해서 온전함을 이룬다. 이는 뱀버러의 우머니즘이 지닌 통합성을 잘 보여준다. 인간의 연대를 통하여 개인과 공동체는 전인적 치유를 성취하고 새로운 우머니즘과 영성의 차원을 구축한다. This paper examines the meaning of healing in Toni Cade Bambara (1939∼1995)’s novel, The Salt Eaters (1980) from the perspective of womanism. I will analyze main characters and the issues of politics, spirituality and ecology of the novel. Bambara’s womanism embraces not only black women but also black men, and puts emphasis on the unification and solidarity of Third World women. This is a distinguishing character compared to different feminisms. Bambara’s The Salt Eaters is a healing story of a black woman social activist, Velma, dealing with the sociocultural context of the 1970’s in the US. The novel maintains that the healing of a black woman is deeply related with the healing of black community and the unification of Third World women, and that African traditional religions and cultures play key roles in creating a new consciousness in the black community. The political, ecological and spiritual dimensions of the novel shows an integrated perception of healing the community and the world. The wholeness of the black community can be recovered by womanist healing and African spirituality. In the process of healing, Velma restores the memory of ancestors and her spiritual power as a black woman. Therefore, the wholeness of the community is recovered by Velma’s healing, which presents the integrity of womanism. The solidarity of people leads to the healing of the individual and the community, and the possibility to search for new womanism and spirituality.

텍스트 유형에 대한 한국어 학습자의 인식과 요구 조사 연구

안유진 ( Ahn Yujin ) 한국텍스트언어학회 2024 텍스트언어학 Vol.56 No.0

This study conducted and analyzed a survey to find out what perceptions Korean language learners have of the types of texts they encounter in educational texts and everyday life in Korea, and what types of texts they need for learning. The purpose is to find out how much Korean language learners understand about various text types and to what extent the text types for Korean language education correspond to the texts they encounter in their daily lives in Korea, and further examine the text types that should be used in Korean language education through a demand survey. The content of the textbook text has a great influence on the learner's learning. Therefore, in this study, a survey was conducted to determine learners' perceptions of texts used in Korean language education and the types of texts learners need while living in Korea. According to the survey results, the text type frequently encountered by learners during Korean classes was ‘text for conveying and understanding information.’ In addition, it was a text that was frequently encountered and difficult to learn in news and information broadcasting. There were also texts I didn't come across often, such as contracts, self-introductions, discussion papers, and academic papers, but I felt I needed to learn them in class. The research results of this paper can be used to create effective Korean text teaching methods in the future.

Formation of Low-Resistivity Nickel Germanide Using Atomic Layer Deposited Nickel Thin Film

Ahn, Hyun Jun,Moon, Jungmin,Seo, Yujin,Lee, Tae In,Kim, Choong-Ki,Hwang, Wan Sik,Yu, Hyun-Yong,Cho, Byung Jin IEEE 2017 IEEE transactions on electron devices Vol.64 No.6

<P>Nickel germanide (NiGe) was formed from atomic layer deposition (ALD) Ni on Ge and a subequent annealing process; the Ni film with low resistivity (34 mu Omega.cm) at 15 nm was obtained by N-2 + H-2 plasma treatment after Ni precursor injection. The formed NiGe film showed low specific contact resistivity (rho(c)) values of 9.01 mu Omega.cm(2) for an NiGe/n(+)Ge contact and 3.61 mu Omega.cm(2) for an NiGe/p(+) Ge contact. These values were comparable to those obtained using sputteredNi. In addition, the ALD process-based NiGe showed excellent thermal/electrical stability up to 600 degrees C.</P>

A Study on the Geological Characteristics of Critical Rare Earth Elements in Coal Ash from Coal-fired Power Plants

Yujin Jegal,Thriveni Thenepalli,Yu-ri Lee,Jiwhan Ahn 한국에너지학회 2015 한국에너지공학회 학술발표회 Vol.2015 No.4

A PMIPv6-based Handover Mechanism for Vehicular Communication Networks

Yujin Lim,Sanghyun Ahn,Kwon Hee Cho 대한전자공학회 2010 ICEIC:International Conference on Electronics, Inf Vol.1 No.1

The vehicular communication network in which vehicles autonomously form a network based on wireless communications is one of the key components of the Intelligent Transportation System (ITS). In recent years, extensive research on the vehicular communication network has been carried out in the areas of medium access control and routing, while handover mechanisms for fast moving vehicles are not relatively well studied from the perspective of the IP mobility management. The Proxy Mobile IPv6 (PMIPv6) based on the concept of network-mobility support was proposed to overcome the overhead imposed on mobile hosts of the host-based IP mobility management mechanisms like the Mobile IPv6 (MIPv6). Besides, PMIPv6 reduces the handover delay as well as relieving mobile hosts from the mobility management overhead. In this paper, we figure out the scenarios of applying PMIPv6 to the vehicular communication network and propose a handover mechanism that can accommodate highly mobile vehicles and long-distance coverage area. We validate the operation of our proposed handover mechanism by carrying out the ns-2 based simulations.

Balanced Parallel Two-line-center Problem

Yujin Cha(차유진),Chaeyoon Chung(정채윤),Hee-Kap Ahn(안희갑) Korean Institute of Information Scientists and Eng 2024 한국정보과학회 학술발표논문집 Vol.2024 No.6