廢 Ni 觸媒로 부터 Nickel Yellow의 製造에 관한 硏究

김성빈,구철회 한국인쇄학회 1984 한국인쇄학회지 Vol.2 No.-

학술논문-대기압 플라즈마 활용 인쇄기능 향상 기술 개발

김성빈,Kim, Seong-Bin 대한인쇄문화협회 2004 프린팅코리아 Vol.25 No.-

Technegas 스캐닝 후 중력환기에 의한 공간선량율 측정

김성빈,원도연 한국방사선학회 2019 한국방사선학회 논문지 Vol.13 No.4

Because examination with technegas produces images through simple diffusion accumulation, the examination room can become contaminated after scan. Therefore, radiation workers and patients awaiting examination will be affected by internal exposure from technegas inhalation. Before and after gravity ventilation, I am trying to find a way to reduce the exposure dose of waiting patients according to a comparative analysis of horizontal spatial dose rates over time. Spatial dose ratio were measured for 10 minutes from various distances and angles around ventilator’s location before and after gravity ventilation. Then, mean values, standard deviation and reduction ratio were calculated. The highest reduction rate of gravity ventilation was 95.31% and the highest reduction ratio was 1 to 3 minutes. Therefore, the gravity ventilation could reduce the exposure dose of radiologic technologists, waiting patients, patient guardians and nurses. In conclusion, the reduction of the exposure dose during the technegas ventilation study through gravity ventilation will play a role in optimiging the protection and it is in accordance with the recommended reduction of the medical exposure by ICRP 103. Technegas를 사용한 검사는 단순 확산 누적을 통해 폐 영상을 이미지화하기 때문에 검사를 마친 후에 검사실이 오염될 수 있다. 따라서 방사선 작업 종사자와 검사를 기다리는 환자는 technegas 흡입으로 인한 내부 피폭의 영향을 받게 된다. 이에 중력환기 전후의 시간경과에 따른 공간선량율 분포를 비교, 분석함에 따라 방사선사, 의료진, 대기 환자의 피폭선량 저감화 방법을 모색하고자 한다. 중력환기 전후 환자의 호흡기 위치에서 거리별, 각도별로 공간선량율을 10분 동안 측정하고 평균값, 표준 편차 및 감소율을 계산하였다. 실험 결과, 중력 환기 전후 감소율은 최고 95.31%였고 가장 높은 감소율은 1 ∼ 3분 사이에서 나타났다. 중력환기를 통해서 방사선 작업종사자, 대기환자, 환자 보호자 및 간호사의 피폭선량을 감소시킬 수 있다. 결론적으로 중력환기를 통한 피폭선량 감소 결과는 방호 최적화를 이루는 역할을 할 것이며 ICRP 103에서 권고한 의료 피폭 저감화에 부합된다.

축산폐수의 3차처리를 위한 미세조류의 선별 및 처리조건의 최적화

김성빈,이석준,김치경,권기석,윤병대,오희목 한국산업미생물학회 1998 한국미생물·생명공학회지 Vol.26 No.1

축산폐수는 과량의 질소와 인을 함유하고 있어서 호소의 부영양화로 수질을 악화시키기 때문에, 본 연구에서는 2차처리된 돈폐수를 대상으로 조류를 이용하여 폐수 내 질소와 인을 효율적으로 제거하고자 조류의 선별 및 배양의 최적화 실험을 수행하였다. Chlorella vulgaris(UTEX 265). Chlorella sp. GE 21, Botryococcus braunii(UTEX 572), Botryococcus sp. GE 24, Scenedesmus quadricauda, Phormidium sp. GE 2, 그리고 Spirulina maxima(UTEX 2342)의 7종을 대상으로 조사한 결과 C. vulgaris(UTEX 265)가 질소와 인의 제거 뿐만 아니라 미세조류의 생산량도 우수하였다. 다음 실험에 사용될 미세조류로 선별된 C. vulgaris는 수온 35℃에서 생장이 가장 좋았으며, 약 알칼리인 초기 pH 8.0에서 생장이 우수하였다. 미세조류의 생산 및 질소와 인의 제거에 있어 광도의 영향을 조사한 결과 40μE/㎡/s 이하에서는 조류의 생장이 억제 받았으나, 그 이상의 광도에서는 비슷한 결과를 얻었다. 시료로 사용된 돈폐수의 질소와 인 농도는 각기 58.7 ㎎/ℓ와 14.7 ㎎/ℓ로 조사되었으며, 대상 폐수를 75%(돈폐수:지하수=3:1)로 희석하였을 때 질소와 인의 제거효율과 미세조류의 생산이 우수하였고, 희석하지 않은 경우 lag time은 길어졌으나 점차로 질소와 인이 제거되었다. 본 실험에서 얻어진 최적 조건하에서 25%의 돈폐수를 처리한 결과 4일 후 폐수중의 총질소는 95.3%가 총인은 96.0%가 제거되었다. The feasibility of algae as means of removing nitrogen and phosphorus from secondary treated swine wastewater was studied. Among the tested 7 species of Chlorella vulgaris (UTEX 265), Chlorella sp. GE 21, Botryococcus braunii (UTEX 572), Botryococcus sp. GE 24, Scenedesmus quadricauda, Phormidium sp. GE 2, and Spirulina maxima (UTEX 2342), C. vulgaris was selected for its fast growth and abilities to remove nitrogen and phosphorus and to produce algal biomass from swine wastewater. C. vulgaris grew well at 35℃, and the optimum initial pH for growth was 8.0. In the effect of light intensity, the growth of C. vulgaris was limited under a light intensity of less than 40μE/㎡/s. The secondary treated swine wastewater contained 58.7 ㎎/ℓof total nitrogen and 14.7 ㎎/ℓof total phosphorus, and was diluted to 75, 50, and 25% with groundwater to be treated. Nitrogen and phosphorus were removed by C. vulgaris in all diluted swine wastewaters among which the most effective removal was in 75% swine wastewater (swine wastewater:groundwater=3:1). There was a tendency of linear increase in nitrogen and phosphorus removal time with increasing concentration of swine wastewater. Under the optimized culture condition, total nitrogen and total phosphorus were effectively removed to 95.3% and 96.0%, respectively, in 25% swine wastewater after 4-day incubation.

화훼류 작물 농약 등록 확대를 위한 약효 그룹화 설정

김성빈,김성우,김민주,문병철 한국농약과학회 2020 한국농약과학회 학술발표대회 논문집 Vol.2020 No.11

LabViewⓇ기반 6축 수직 다관절 로봇의 파라미터 스케쥴링 프로그래밍에 관한 연구

김성빈,정원지,김효곤 한국생산제조학회 2015 한국생산제조학회지 Vol.24 No.3

As industrial robots come into wider use, their control techniques are being developed along with enhancements in their performance. Specially, the dynamic performance of a 6-axis articulated industrial robot is greatly changed according to the position and orientation of the robot. This means that the PI parameter tuning of the robot and orientation of the robot. This mconsidering the dynamic characteristics of robot mechanism. In this study, LabView® programming was applied to automatically conduct parameter scheduling for various robot motions. Using forward and inverse kinematics of RS2, we can divide the working envelope of RS2 into 24 subspaces. We then conduct the gain-tuning according to each subspace. Finally, we program the actual gain scheduling, in which the optimized gain-tuning for each subspace to be passed should be changed for various robot motions using LabView®.

대한민국 40-50대 남성에서 만성전립선염 증상 정도가 조루증에 미치는 영향

김성빈,김유석,조인창,민승기 대한요로생식기감염학회 2013 Urogenital Tract Infection Vol.8 No.1

Purpose: The purpose of this study was to analyze the effect of the severity of chronic prostatitis symptoms on premature ejaculation among Korean males in their 40-50s. Materials and Methods: From September 2011 to December 2012, we conducted a survey targeting 319 Koreans who had undergone medical examinations in our institution, using National Institute of Health chronic prostatitis symptom index (NIH-CPSI) and premature ejaculation diagnostic tool (PEDT). Results: The average age of 319 volunteers was 50.8 years (40-59), the average total NIH-CPSI score was 8.6±6.2. And total PEDT score was 7.7±5.0. Twenty eight persons had chronic prostatitis-like symptoms (8.8%). Statistically significant differences in the prevalence of premature ejaculation were observed between persons with chronic prostatitis-like symptoms (82%) and those without (37.5%). In the same manner, the prevalence of premature ejaculation was higher in the moderate and severe symptom groups than in the mild symptom groups according to the symptom scale score (pain plus voiding score) and total score of NIH-CPSI (mild: 38.2%, moderate/severe: 59.6% by symptom scale score and mild: 36.7%, moderate/severe: 65.4% by total score). In univariate and multivariate analyses, presence or absence of chronic prostatitis-like symptoms and classification according to total NIH-CPSI score were independent predictive factors for the prevalence of premature ejaculation on PEDT. Conclusions: Significant statistical relationships were observed between NIH-CPSI and PEDT in Korean males in their 40-50s who have chronic prostatitis-like symptoms or were classified into moderate and severe symptom groups according to total NIH-CPSI score.

소규모 건축공사의 안전관리 현황 및 웨어러블 장치 분석

김성빈,조민진,김재엽 한국생태환경건축학회 2019 한국생태환경건축학회 학술발표대회 논문집 Vol.19 No.2

역사 디지털 휴먼 유형에 따른 제작 기술 및 미디어 활용 특성 연구 - 역사 미디어 콘텐츠 활용 사례를 중심으로 -

김성빈,한정엽 한국공간디자인학회 2022 한국공간디자인학회논문집 Vol.17 No.8

(Background and Purpose) Currently, digital humans are expanding not only in other to games and movies, but also to various industries such as public relations and manufacturing. Looking at the industrial trend, digital humans are being used in various ways, such as virtual YouTubers and digital influencers using various media, so it is time to actively utilize digital humans in historical content as well. Looking at academic research, there is a lack of research on the use cases of historical digital humans despite the fact that there are 318 historical soap operas regularly scheduled from 1964 to 2014, and the historical content is even more extensive when including movies, plays, and games. Therefore, this study analyzes the use cases of historical digital humans in media content for it to be used as basic data for producing historical digital human contents in the future. (Method) In the research method, the historical human types were first classified according to a recording method such as biography, narrative/simple record, existing, or photo/image. It analyzed the utilization and characteristics of the representative cases of historical digital humans by the means of each type based on the characteristics of production technology and media. (Results) Accordingly, in this study, it classified historical digital humans into four types and presents production technology and media utilization. The biographical human type is used in real-time mixed reality media using a 3D modeling writing tool based on historical record culture. The narrative/simple recorded human type is used in broadcast media using a motion capture writing tool based on oral literature. The existing human type is used in fixed device type media using volumetric production technology based on real people. The photo/image human type is utilized in media platforms using AI technology based on images such as portraits or photos of people. (Conclusions) As a result of the analysis, it was possible to identify differences in the appearance of the person whether the person was the same as the real one or the graphic appearance was visible by the historical digital human type, and it was possible to identify differences in the utilization method of media according to the production technology. It was also possible to derive which media was appropriate for historical digital humans depending on the media characteristics. It is hoped that this study will be able to suggest a plan that can be effectively utilized in the future when producing historical media contents based on digital humans.

궤도차량 엔진의 저온 시동성 개선 사례 연구

김성빈,성기창 국방기술품질원 2021 국방품질연구논집 Vol.3 No.2

The cold start requirement of most vehicle is -32℃. So most vehicle system provides starting aid devices as water preheating system and auxiliary power unit (single cylinder engine) to prevent battery discharging problem during long starting time. Cold start-ability is performed under several severe condition, limited starting times and limited operating time of starter, 8hrs maintain time under full soaking temp condition. Limited heating condition and so on those environments are clearly stated in the system-specifications. There are various approaches to improve cold start-ability. Preferentially combustion optimization is most easy approaching method through fuel injection quantity, pressure and multiple injection control and hardware point of view, we introduced the change of the oil storage position by the application of the Oil anti-drain valve in this work which can reduce the starting load by bringing up the effect of oil heating through the preheating condition. This improvement model was applied in engine development and improved outstanding achievement in cold start-ability and this is also applicable to similar systems as extendibility.