철근콘크리트조 건축공사의 공종별 위험성 평가

이종빈,고성석,장성록 한국안전학회 2005 한국안전학회지 Vol.20 No.1

Transportation Automation System Design for Visually and Hearing Impaired Users in the Digital Environment

이종빈,김성기 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.7

The transportation card ticket vending machine, a kiosk system first introduced in Korea in 1997, became a world-top-tier technological innovation and was gradually implemented in many other countries. Today, it is practically everywhere and expanded to other variable industry such as restaurant, concert hall and movie theater, and so on, because of cheaper of labor costs and convenience. It has recently achieved more than 95% installed vendinFg machine in most of service markets, stores, even local supermarkets. However, this being part of the digital age, causes a digital discrimination especially on the persons with visual or hearing impairment, which makes performing everyday activities difficult if not properly addressed. Thus, the study proposed an improved transportation card vending machine system, with design and operational flow that will serve these persons with disabilities. It has a simplified menu display with voice recognition and body language service, and a service mode setting automatically detecting the disability level of the user. To increase the success rate among kiosk users, the system recommends destinations through voice or text interface to lead the users to choose only one digit number representing their exact destination. It is intended to reduce the fail attempt during user interaction and to provide an improved transportation card vending machine system with design and operation flow that will serve these persons with disabilities.

Correlation analysis of gingival recession after orthodontic treatment in the anterior region: an evaluation of soft and hard tissues

이종빈,백수진,김민지,방은경 대한치주과학회 2020 Journal of Periodontal & Implant Science Vol.50 No.3

Purpose: The aim of this study was to investigate and identify the main causes of periodontal tissue change associated with labial gingival recession by examining the anterior region of patients who underwent orthodontic treatment. Methods: In total, 45 patients who had undergone orthodontic treatment from January 2010 to December 2015 were included. Before and after the orthodontic treatment, sectioned images from 3-dimensional digital model scanning and cone-beam computed tomography images in the same region were superimposed to measure periodontal parameters. The initial labial gingival thickness (IGT) and the initial labial alveolar bone thickness (IBT) were measured at 4 mm below the cementoenamel junction (CEJ), and the change of the labial gingival margin was defined as the change of the distance from the CEJ to the gingival margin. Additionally, the jaw, tooth position, tooth inclination, tooth rotation, and history of orthognathic surgery were investigated to determine the various factors that could have affected anterior periodontal tissue changes. Results: The mean IGT and IBT were 0.77±0.29 mm and 0.77±0.32 mm, respectively. The mean gingival recession was 0.14±0.57 mm. Tooth inclination had a significant association with gingival recession, and as tooth inclination increased labially, gingival recession increased by approximately 0.2 mm per 1°. Conclusions: In conclusion, the IGT, IBT, tooth position, tooth rotation, and history of orthognathic surgery did not affect labial gingival recession. However, tooth inclination showed a significant association with labial gingival recession of the anterior teeth after orthodontic treatment.

Evaluation of prognosis related to compliance with supportive periodontal treatment in patients with chronic periodontitis: a clinical retrospective study

이종빈,신혜정,김대엽,방은경 대한치주과학회 2019 Journal of Periodontal & Implant Science Vol.49 No.2

Purpose: The purpose of this study was to evaluate the prognostic effect of patient compliance with supportive periodontal treatment (PC-SPT). Chronic periodontitis patients were classified based on their compliance level, and factors affecting PC-SPT and the prognosis of PC-SPT were investigated. Methods: This study selected 206 patients who started SPT after receiving periodontal treatment between 2010 and 2012. Patients who continued SPT through February 2016 were included. The patients were classified according to whether they exhibited complete compliance (100% of visits), excellent compliance (≥70% of visits), incomplete compliance (<70% of visits), or non-compliance (only 2 visits). Patient characteristics that could affect PC-SPT, such as age, sex, distance of the clinic from their residence, implantation, and periodontal treatment, were investigated. The number of newly decayed and extracted teeth, alveolar bone level changes around the teeth and implants, and implant removal were examined to evaluate the prognosis of PC-SPT. Results: Sex and the presence of an implant significantly affected PC-SPT. Additionally, the number of newly decayed and extracted teeth and changes in alveolar bone levels around the teeth and implants were significant prognostic factors related to PC-SPT. Conclusions: PC-SPT in chronic periodontitis patients will help maintain periodontal health and prevent further periodontal disease.

Numerical Modeling of Roller Leveler for Thick Plate Leveling

이종빈,강성수 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.3

To ensure quality of the steel structures used in the shipbuilding and construction industry, the thick plate market increasingly demands for more flatness and higher residual stress. Diminishing slit camber caused by residual stress and incorrect flatness due to aging effect has recently emerged as important quality issues. In the current study, we proposed a new numerical model for a twodimensional roller leveler which calculates the curvature and moment of the material depending on the intermesh. This curvature was used to calculate the stress and strain values of the material along the thickness direction. Correction factors were also introduced to correct the location of the contact point that changes when the relationship between the intermesh and curvature was assumed as three-point bending of a concentrated load at the plate center. The result from this numerical model and that of the finite element analysis were compared to verify the effectiveness of this model.

위험성향을 고려한 자산매각문제 유형별 의사결정 패턴의 비교 분석에 관한 실증 연구

이종빈,손재동 한국경영공학회 2015 한국경영공학회지 Vol.20 No.4

Suppose that someone needs to sell a building by a certain date in the future because of the emigration or studying abroad, etc. Then he/she are faced with a decision problem of when and how to accept the price offered by a potential buyer. This kind of problem is referred to as assets selling problem(ASP). This paper deals with the following three types of ASP model; 1) with only discount factor, 2) with discount factor and search cost, and 3) with discount factor, search cost, and recall with reservation cost. With respect to these three types of ASP, the experimental games are developed by Java. By use of the game, the various decision patterns in ASP are analyzed. In addition, the influence of decision maker’s risk attitude on the decision making in ASP is investigated as well.

안전한 속목정맥의 중심정맥도관삽입을 위한 환자의 자세: 중환자를 대상으로 한전향적 관찰 연구

이종빈,김재윤,임훈,김호중,최재형,조영순 대한응급의학회 2013 大韓應急醫學會誌 Vol.24 No.5

Purpose: Carotid artery injuries are common complications during catheterization of the internal jugular vein. To increase successful catheterization, the best position for the reduction of carotid artery injuries was determined. Unlike a previous study, only critically ill patients who needed central venous catheterization in an emergency medical center were included. Three maneuvers were evaluated:Trendelenburg position, head rotation, and adjustments according to ultrasound probe level. Methods: Eight positions were tested in each patient. The positions were classified by maneuver and ultrasound images of each position were stored. Two factors were determined at each position: “safety width” (the part of the internal jugular vein that did not overlap with the carotid artery) and “overlap width” (the part of the internal jugular vein that did overlap with the carotid artery). Results: Compared with the neutral bed position, safety widths were significantly larger in the Trendelenburg position,and there were no statistical difference in overlap widths. Compared with the non-head rotation position, safety widths were smaller and overlap widths were significantly larger in the 45 head rotation positions. Safety widths didnot statistically change safter adjustments for ultrasound probe level. However, changing the ultrasound probe level from the base of Sedillot’s triangle to thyroid cartilage significantly decreased overlap widths. Overall, The group of Trendeleberg position, with non-head rotation, whose ultrasound probe level was thyroid cartilage had largest safety widths among 8 groups. Conclusion: Among the eight positions tested, the Trendelenburg position (with limited head rotation and adjustments for ultrasound probe level) can reduce carotid artery injuries and increase the successful catheterization of the jugular vein in critically ill patients.

경부에 발생한 림프구 풍부형 전형적 호지킨 림프종 1예

이종빈,김기식,권오성,김기권 東國大學校醫學硏究所 2005 東國醫學 Vol.12 No.1

최근 WHO에서는 호지킨 림프종을 결절성 림프구 풍부형과 전형적 호지킨 림프종으로 크게 나누었으며, 전형적 호지킨 림프종에는 결절성 경화형, 혼합세포형, 림프구 감소형, 림프구 풍부형이 포함된다. 전형적인 호지킨 림프종 중 림프구 풍부형은 특징적인 세포 모양에 근간을 둔 새로운 아형이며, 면역조직화학 염색을 통하여 비정상세포의 특징을 규명함으로써 감별할 수 있다. 전형적 호지킨 림프종의 치료방법은 모든 아형에서 동일하다. 저자들은 27세 남자환자의 경부에 발생한 림프구 풍부형의 전형적 호지킨 림프종 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. The current WHO classification of Hodgkin's lymphoma has two distinct entities: nodular lymphocyte-predominant Hodgkin's lymphoma and classical Hodgkin's lymphoma. Classical Hodgkin's lymphoma is divided into four subtypes: nodular sclerosis type, mixed cellularity type, lymphocyte rich type and lymphocyte depleted type. The classical lymphocyte rich subtype is a new entity and based on the typical morphology, can be recognized by definition only by the immunohistochemical characteristics of the Hodgkin and Reed-Sternberg cells. All subtypes of classical Hodgkin's lymphoma are treated in the same way. We experienced a case of lymphocyte rich classical Hodgkin's lymphoma in a 27 year-old male, and report it with a review of the related literature.

기도를 압박하여 호흡곤란을 유발한 식도이물 1례

이종빈,김호중,조영순,이명갑,유병대,전덕호 대한응급의학회 2011 大韓應急醫學會誌 Vol.22 No.2

Foreign bodies that migrate outside the esophagus into the mediastinum or soft tissues usually cause respiratory symptoms. Also, esophageal foreign body granulomas that cause tracheal stenosis, lobar atelectasis, and bronchoesophageal fistulas are reported as complications. Foreign bodies can become lodged above esophageal strictures, and chronically-embedded esophageal foreign bodies can induce stricture formation, although these are less common. This is rare case report that the trachea was directly compressed due to impacted esophagus by foreign body.

전시 분석을 통한 근대건축물의 리노베이션 연구 - 구 국립농산물품질관리원 충청지원을 대상으로 -

이종빈,전재홍,한필원 대한건축학회지회연합회 2006 대한건축학회지회연합회 학술발표대회논문집 Vol.2 No.1

The key ideas of the renovation design that is proposed through the study are as follows; The office space can be transformed into exhibition space. The court and street are integrated by erasing the site boundary. More service space is designed and the interior and exterior of the building are interrelated. And steel columns are added for the change of interior spatial organization.