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하수고도처리 공정내 호기성, 무산소성 및 혐기성 반응조에서 종속영양 미생물 생산계수, Y<sub>H</sub>의 비교분석
신정섭,고광백,이지영,임세호,강승현,박재한,Shin, Jung Sub,Ko, Kwang Baik,Lee, Ji Young,Lim, Se Ho,Kang, Seung Hyun,Park, Jae Han 한국물환경학회 2006 한국물환경학회지 Vol.22 No.3
Heterotrophic biomass yield coefficients, $Y_H$, for aerobic, anoxic and anaerobic reactors were successfully estimated for the two wastewater treatment plants, where one plant was operating in the $A^2/O$ process and the other was operating in the 4-stage BNR process. The estimation of $Y_H$ was undertaken by plotting the biomass COD concentrations versus the soluble COD concentrations in order to calculate the ${\Delta}biomass$ COD/ ${\Delta}soluble$ COD in each batch reactor. The batch reactors employed in this study were fed by filtered influent and mixed liquors in the ratio of 10:1, and operated in the aerobic, anoxic and anaerobic conditions, which represented the actual operating conditions for the $A^2/O$ and 4-stage BNR process. The average $Y_H$ values of the aerobic, anoxic and anaerobic reactor for the $A^2/O$ process were 0.52, 0.41 and 0.18 mg COD/mg COD, respectively, and those for the 4-stage BNR process were 0.58, 0.40 and 0.20 mg COD/mg COD, respectively. The average ratio of the $Y_H$ for aerobic reactors to those for the anoxic reactors were about 1:0.79 for the $A^2/O$ process, and about 1:0.69 for the 4-stage BNR process. The experimental method for anoxic and anaerobic $Y_H$ estimation shown in this study has turned out to be simple and efficient in its practical application.
구강악안면외과 소수술시 정맥 의식하 진정법에서의 Bispectral Index and Hemodynamics monitoring을 이용한 진정 깊이에 관한 연구
신정섭,민현기,이주현,이동현,김명래,강나라,Shin, Jung-Sub,Min, Hyun-Gi,Lee, Ju-Hyon,Lee, Dong-Hyun,Kim, Myung-Rae,Kang, Na-Ra 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.6
Purpose: The purpose was to assess the usefulness of midazolam in patients undergoing minor oral surgery under conscious sedation. Materials and methods: Bispectral index was examined in 20 patients receiving oral minor surgery with conscious sedation supplemented with local anesthesia. All patients included were ASA I and had no contraindications to the study medications. The patients were escorted to the day surgery operation room where, before the commencement of the sedation and surgical procedures, routine monitoring was applied, including the noninvasive monitoring of arterial blood pressure, arterial oxygen saturation, and 3-lead electrocardiogram (Electrocardiogram). Bispectral index electrodes were applied on the frontotemporal region after cleansing the skin with alcohol. Bispectral index was calculated with the Electrocardiogram monitor (A-2000; Aspect Co.). Midazolam was then titrated (initially 3mg wait 2min and 2mg). Vital sign and Bispectral index checked every 5 minute until the end of the procedure. The results were then compared. Results: The Bispectral index index values throughout the sedation study period alter many level. The index was dropped at 5 minutes after administration, but raised at injection and odontomy procedure. During the operation, mean Bispectral index index was higher than conscious sedation index range($60{\sim}80$). The amnesic effect was shown 17 cases out of 20 cases(85%). Conclusion: Conscious sedation technique using midazolma is a safe and effective method of controlling behavior in oral and maxillofacial surgery.
하수고도처리 공정내 호기성, 무산소성 및 혐기성 반응조에서 종속영양 미생물 생산계수, Y(H)의 비교분석
신정섭 ( Jung Sub Shin ),고광백 ( Kwang Baik Ko ),이지영 ( Ji Young Lee ),임세호 ( Se Ho Lim ),강승현 ( Seung Hyun Kang ),박재한 ( Jae Han Park ) 한국물환경학회 2006 한국물환경학회지 Vol.22 No.3
Heterotrophic biomass yield coefficients, Y(H), for aerobic, anoxic and anaerobic reactors were successfully estimated for the two wastewater treatment plants, where one plant was operating in the A2/O process and the other was operating in the 4-stage BNR process. The estimation of Y(H) was undertaken by plotting the biomass COD concentrations versus the soluble COD concentrations in order to calculate the △biomass COD/△soluble COD in each batch reactor. The batch reactors employed in this study were fed by filtered influent and mixed liquors in the ratio of 10:1, and operated in the aerobic, anoxic and anaerobic conditions, which represented the actual operating conditions for the A2/O and 4-stage BNR process. The average Y(H) values of the aerobic, anoxic and anaerobic reactor for the A2/O process were 0.52, 0.41 and 0.18㎎ COD/㎎ COD, respectively, and those for the 4-stage BNR process were 0.58, 0.40 and 0.20㎎ COD/㎎ COD, respectively. The average ratio of the Y(H) for aerobic reactors to those for the anoxic reactors were about 1:0.79 for the A2/O process, and about 1:0.69 for the 4-stage BNR process. The experimental method for anoxic and anaerobic Y(H) estimation shown in this study has turned out to be simple and efficient in its practical application.
RBM 표면처리 내부연결형 비매립 임플란트의 4년 생존율과 주변골 흡수에 관한 임상 및 방사선학적 연구
전혜란,김명래,이동현,신정섭,강나라,Jeon, Hye-Ran,Kim, Myung-Rae,Lee, Dong-Hyun,Shin, Jung-Sub,Kang, Na-Ra 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.3
Implant-supported fixed and removable prostheses provide a proper treatment modality with reliable success. The SS $II^{(R)}$ Implants is a one-stage nonsubmerged threaded titanium implants with Resorbable Blasting Media (RBM) surface developed by Osstem company (Busan, Korea) in October of 2002. This study is to evaluate the survival rate of the SS $II^{(R)}$ Implants for 4 years using radiographic parameters and to review the retrieved implants by the cytotoxicity tests. Since September 2003, 439 SS $II^{(R)}$ implants had been used for 173 patients at Ewha Womans University Medical Center in Korea. Patients consisted of 91 females (52.6 %) and 82 males (47.4 %). The patients' mean age was $42\;{\pm}16$ years, ranging from 21 to 83 years. The follow-up period ranged from 9 to 46 months (mean F/U $24.2\;{\pm}\;10.2$ months). The results are as follows; 1. Of 439 implants, 17 implants were removed and 4-year cumulative survival rate was 96.1%. 2. 82.3% of 17 failed implants were founded during healing phase, and 94.1% of failed fixtures were removed within 5 months after implantation. 3. Crestal bone around the implants was resorbed to 1 mm in 89.0%, to 1 - 2 mm loss of the marginal bone in 8.3%, and the bone loss over 2 mm was occurred in 2.7%. 4. Microscopic examination of the retrieved implants disclosed Grade 0 cytotoxicity in 4 and Grade 1 cytotoxicity in 2 of 6 groups divided according to LOT numbers. Inhibition rate with optical density was acceptable as low as ISO standard.
소형 적외선영상 호밍시스템용 고속 실시간 영상신호처리기 개발
김홍락,박진호,김경일,전효원,신정섭,Kim, Hong-Rak,Park, Jin-Ho,Kim, Kyoung-Il,Jeon, Hyo-won,Shin, Jung-Sub 한국인터넷방송통신학회 2021 한국인터넷방송통신학회 논문지 Vol.21 No.4
A small infrared image homing system is a tracking system that has an infrared image sensor that identifies a target through the day and night infrared image processing of the target on the ground and searches for and detects the target with respect to the main target. This paper describes the development of a board equipped with a high-speed CPU and FPGA (Field Programmable Gate Array) to identify target through real-time image processing by acquiring target information through infrared image. We propose a CPU-FPGA combining architecture for CPU and FPGA selection and video signal processing, and also describe a controller design using FPGA to control infrared sensor. 소형 적외선영상 호밍시스템은 지상의 표적에 대하여 주야간 적외선 영상처리를 통하여 표적을 식별하고 주요 표적에 대하여 표적을 탐색, 탐지하여 추적하는 적외선 영상센서를 보유한 추적시스템이다. 본 논문에서는 지상의 표적을 주야간 적외선 영상을 통하여 표적 정보를 획득하여 실시간 영상처리를 통하여 표적을 식별하기 위한 고속의 CPU와 FPGA(Field Programmable Gate Array)가 탑재된 보드 개발의 내용을 설명한다. CPU, FPGA 선정과 영상신호처리를 위한 CPU-FPGA 결합 아키텍처에 대하여 제안하고 또한 김발구조의 적외선센서를 제어하기 위한 FPGA를 활용에 대하여 설명한다.
소에서 비임신 및 임신 상태의 난소 형태와 혈중 progesterone 농도 변화에 의한 조기 임신진단
김철호 ( Cheol Ho Kim ),박종식 ( Jong Sik Bhak ),신정섭 ( Jung Sub Shin ),강정부 ( Chung Boo Kang ) 한국동물위생학회 2008 한국동물위생학회지 (KOJVS) Vol.31 No.3
In order to evaluate conception rate of Hanwoo in northwestern region of Gyeongsang-nam-do, we investigated conception rate and reduction of reproductive disorder rate after artificial insemination(AI) in 1,000 heads of breeding cows. This study showed that 80.9% of cows were classified as fertility after 1st and 2nd AI. For a accurate pregnancy diagnosis with practicing ovariectomy and histeotomy, we comparatively investigated each of 80 slaugh-tered cows, including 30 of non-pregnancy, and used enzyme-linked immunosorbent assay (ELISA) for estimation of plasma progesterone concentration and serum luteal hormone. The mean diameter of non-pregnant corpus luteum is 18.9±4.2×15.6±3.6㎜ and that of pregnant corpus luteum is 22.5±2.7×18.7±2.9㎜. This indicates that corpus luteum is more developed in the ovary of pregnant than non-pregnant cows(P<0.05) The diameter of pregnant corpus luteum according to the stage of pregnancy showed 21.3±2.4×18.4±2.6㎜ in early stage(1-3month), 23.4±2.8×19.1±2.7㎜ in middle stage(4-6 month) and 22.8±3.0×18.8±2.4㎜ in last stage(7-9 month). This indicates that corpus luteum in middle and last stage is more significantly developed than that of early stage(P<0.05). The mean plasma progesterone concentration of cows showing size of non-pregnant corpus luteum was 4.58±0.92ng/㎖ and that of pregnant corpus luteum 8.26±0.98ng/㎖. Thus, it was more significantly increased in pregnant corpus luteum(P<0.02).. However, it was low to 0.58±0.39ng/㎖. in estrus(corpus albicans). The plasma progesterone concentration according to gestation period was high in proportion to the degree of development in corpus luteum and more significantly increased (P<0.05) and maintained in middle and last state than early state. The concentration was sharply decreased to 0.56±0.32ng/㎖ at parturition. As a consequence, we can practice the early pregnancy diagnosis by confirming non-pregnancy when the mean plasma progesterone con- centration is below 1ng/㎖ 19 to 22 days after AI and this can be available to diagnose reproductive disorder.