Optimum Conditions for Production of Bioethanol with Seaweeds

노수빈,장세주,이승범,정구형,홍인권 한국공업화학회 2009 한국공업화학회 연구논문 초록집 Vol.2009 No.1

다양한 코팅 처리에 의한 PEEK 추간체유합보형재의 생체 활성 표면에 관한 연구

노수빈,박수지,이문환 한국표면공학회 2023 한국표면공학회지 Vol.56 No.4

In this study, the surface of Polyetheretherketone (PEEK) disks was modified to have a hydrophilic surface by applying a coating of Polyethylene glycol (PEG), Hyaluronic acid(HA), and Poly-Dopamine(PDA). The investigation aimed to examine whether the coated surfaces showed enhanced bioactivity for orthopedic applications compared to the pure PEEK. The microstructure, surface characteristics, and wettability of PEEK coated with PEG, HA, and PDA were analyzed using scanning electron microscopy(SEM), FT-IR spectrophotometer, Roughness Measurement System, Micro-Vickers, and Contact angle measurement. The mechanical properties were analyzed using a tensile testing machine, while the MTT assay for cell activity was analyzed using a microplate reader to measure optical density. According to the SEM and FT-IR results, the composition and crystal structure of PEG, HA and PDA coated surface were verified. Also, roughness, hardness, and contact angle were all improved in the coating group compared to the pure PEEK. We checked the HepG2 cell proliferation by using MTT assay on 7th days. In MTT assay results, HepG2 cell proliferation was increased with time, at 7 days, cell viability on discs coated with PDA was significantly higher than pure PEEK, PEG, HA coated group. PDA coated PEEK exhibited the highest surface roughness, hardness, contact angle, and cell activity. The mechanical properties were not affected by the presence of the coating.

OLED 광원을 적용한 차량용 Tail Lamp의 회로 설계

노수빈(Su-bin Noh),김상유(Sang-yoo Kim) 한국조명·전기설비학회 2019 한국조명·전기설비학회 학술대회논문집 Vol.2019 No.5

1920~30년대 대구 지역의 ‘불량소년’ 문제와 ‘대구경찰서 소년보호소’

노수빈 ( Noh Su-bin ) 한일민족문제학회 2024 한일민족문제연구 Vol.46 No.0

Founded in 1926, the “Juvenile Detention Center of the Daegu Police Station (Juvenile Detention Center)” was established by the Daegu Police Department with a donation from Jang-woo Lee, a local influential person. Although it was run by the police, it was classified as a “private reformatory” and subsidized as a “private social work organization”. After the opening of the reformatory, the same type of reformatory was established in colonized Korea, a colonial phenomenon that was rare in Japan. It is worth noting that the “Juvenile Detention Center” is an important example of the colonial police’s operation of the reformatory and the reality, and became the prototype of the police-run reformatory. This article examines the history of the establishment and operational characteristics of the “Juvenile Detention Center” in the context of police policing activities and community relations surrounding the problem of “juvenile delinquents”. It traces the logic of “social defense” and the operation of governability in “protection”. In the 1920s, the social phenomenon of street children became visible as a problem of “poor class delinquents/ proletarian delinquents”. They were called “street urchins” or “child beggars” and were the target of social services and police crackdowns. There was a growing social demand for the establishment of state reformatories from the perspective of child protection and social defense. Due to budgetary problems, the police considered establishing a semi-public reformatory by mobilizing private capital from the community. The plan was first implemented in Daegu due to the city’s geographical location and social atmosphere. Since the 1900s, Daegu had been a hotbed of interest in social work and social issues, with a variety of private social work agencies. After the 1920s, rapid urbanization exacerbated the problem of poverty, and there was a need for social work to address the problem of street children. The Daegu Police Department considered establishing a “beggar child camp” as a new policing strategy for the growing number of homeless children. The existence of the Gimcheon Juvenile prison and police leadership with experience in social services were factors in moving the plan forward. And with a donation from Lee Jang-woo, who had close ties to the Daegu authorities, the Daegu Police Department built the facility. The Daegu Police Department’s new initiative caught the attention of police and social workers. And the news spread throughout Japan. Police touted “the Juvenile Detention Center” to help street children become self-sufficient, ultimately preventing crime and keeping society safe. The reformatory, however, was more like a labor camp for street children, wrapped in the rhetoric of child protection. And hierarchical “cooperation” was a process of recruiting and mobilizing individuals into the dominant order through the practice of social work. Work training, which took place in the context of forced labor and imprisonment, could not be a fundamental solution to poverty.

농인의 뉴스 시청 경험 향상을 위한 화면 디자인 비교 연구

노여경(Jin-Hyuk Hong),김송이(Songei Kim),옥수빈(Subin Ok),전준렬(Junryeol Jeon),홍진혁(Jin-Hyuk Hong) 한국정보과학회 2020 한국정보과학회 학술발표논문집 Vol.2020 No.12

Risk Factors of and Treatments for Pharyngocutaneous Fistula Occurring after Oropharynx and Hypopharynx Reconstruction

도수빈,정철훈,장용준,김병준,노영수 대한성형외과학회 2017 Archives of Plastic Surgery Vol.44 No.6

Background A pharyngocutaneous fistula is a common and difficult-to-manage complication after head and neck reconstruction. It can lead to serious complications such as flap failure, carotid artery rupture, and pharyngeal stricture, and may require additional surgery. Previous radiotherapy, a low serum albumin level, and a higher T stage have been proposed as contributing factors. We aimed to clarify the risk factors for pharyngocutaneous fistula in patients who underwent flap reconstruction and to describe our experiences in treating pharyngocutaneous fistula. Methods Squamous cell carcinoma cases that underwent flap reconstruction after cancer resection from 1995 to 2013 were analyzed retrospectively. We investigated several significant clinical risk factors. The treatment modality was selected according to the size of the fistula and the state of the surrounding tissue, with options including conservative management, direct closure, flap surgery, and pharyngostoma formation. Results A total of 127 cases (18 with fistulae) were analyzed. A higher T stage (P=0.048) and tube-type reconstruction (P=0.007) increased fistula incidence; other factors did not show statistical significance (P>0.05). Two cases were treated with conservative management, 1 case with direct closure, 4 cases with immediate reconstruction using a pectoralis major musculocutaneous flap, and 11 cases with direct closure (4 cases) or additional flap surgery (7 cases) after pharyngostoma formation. Conclusions Pharyngocutaneous fistula requires global management from prevention to treatment. In cases of advanced-stage cancer and tube-type reconstruction, a more cautious approach should be employed. Once it occurs, an accurate diagnosis of the fistula and a thorough assessment of the surrounding tissue are necessary, and aggressive treatment should be implemented in order to ensure satisfactory long-term results.

에폭시계 수지의 열전도도에 따른 네온변압기의 열내구성 변화

남상욱,노수빈,이승범,김진환,홍인권 한국공업화학회 2010 한국공업화학회 연구논문 초록집 Vol.2010 No.-

Prediction of operating domain of green refrigerant with J/T coefficient

장세주,노수빈,홍인권,한경호 한국공업화학회 2010 한국공업화학회 연구논문 초록집 Vol.2010 No.1

전방경추수술중 추골동맥 손상 : 2예 보고

이동걸,임승철,노성우,임수빈,권양,권병덕,Lee, Dong Girl,Rhim, Seung Chul,Roh, Sung Woo,Im, Su Bin,Kwon, Yang,Kwun, Byung Duk 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2

Vertebral artery injury is a rare complication of anterior cervical approach. We report two patients who suffered injury to vertebral artery during anterior cervical spine surgery. The mechanism of injury, their operative management, and the subsequent outcome were assessed and relevant literatures reviewed. The awareness of the possibility of vertebral artery injury is most important to prevent and it's occurrence is best avoided by a thorough understanding of the anatomical relationships of the artery, the spinal canal, and the vertebral body and careful use of surgical instruments.

척추손상환자의 폐색전증에 관한 전향적 분석

고윤석,류진숙,임수빈,임승철,노성우 대한외상학회 2000 大韓外傷學會誌 Vol.13 No.1

Background: Among various complications during the management of patients with multiple injurles, pulmonary embolism (PE) is known to be rare, but catastrophic, despite aggressive treatment. We present a case control study comparing the occurrence of PE in patients with spinal injury who underwent surgery with that of patient in a control group to determine its incidence and to suggest guidelines for treating this lethal complication. Methods: A prospective analysis of a total of 98 patients (27 spinal-injury and 71 control-group patients) was done during the last 3.5 years. The control group consisted of 71 patients who had undergone spinal surgery due to non-traumatic etiology (degenerative disc disease, 51; infection, 8; instability, 7; and tumor, 5). To detect the PE, we carried out a perfusion/ventilation lung scan preoperatively and one week postoperatively. The incidence of PE and its outcome after treatment were analyzed. A statistical analysis was performed. Results: The incidence of PE in patients with spinal injury was 18.5% (5/27 patients); that of the control group was 1.4% (1/71 patients) (p $lt; 0.05). The PE was detected in 2 patients preoperatively and in 4 patients postoperatively. Among these 6 patients, three were symptomatic. All the patients with PE showed marked improvement clinically and on follow-up perfusion/ventilation lung scan after high-dose heparin therapy for 7-10 days. Conclusions: The results of the present study indicate that PEs develop so frequently in patients with spinal injury that early detection may be possible using a perfusion/ventilation lung scan. Also high-dose heparin therapy was an effective treatment for a PE.