脊髓損傷患者에 對한 統計學的 考察

孫晋式,車慶煥,李鍾吉,李炳孝 中央醫學社 1971 中央醫學 Vol.20 No.1

From July 1968 to June 1970, in 3rd. army hospital, authors studied statistical consideration of 37 cases of spinal cord injuries including the causes and sites of the injuries, neurological findings on admission, interval from injuries to operation, operative findings complications, and prognosis. Thirty two of thirty seven cases were operated, but the others were treated non-surgically. Eighteen of 23 cases had complete motor and sensory loss on admission, which were operated, but not show any signs of improvement. Five of 37 cases had excellent recovery. One of five non-operated cases with complete paraplegia on admission did not show any remission despite continuous treatment. The other four cases with incomplete paraplegia on admission showed slight improve after treatment.

Pulse UV 장치를 이용한 먹는물의 이취미 유발물질 제거효과에 관한 연구

손진식,박순호,정의택 대한상하수도학회 2012 상하수도학회지 Vol.26 No.2

Problems due to the taste and odor in drinking water are common in treatment facilities around the world. Taste and odor are perceived by the public as the primary indicators of the safely and acceptability of drinking water, and are mainly caused by the presence of two semi-volatile compounds–2-methylisoborneol(2-MIB) and geosmin. Conventional treatment processes in water treatment plants, such as coagulation, sedimentation and chlorination have been found to be ineffective for the removal of 2-MIB and geosmin. Pulse UV system is a new UV irradiation system that is a non-mercury lamp-based alternative to currently used continuous wave systems for water disinfection. This study shows pulse UV system to be effective in treatment of these two compounds. Geosmin removal efficiency of UV process alone achieved approximately 70% at 10sec contact time. 2-MIB removal efficiency of UV only process achieved approximately 60% at 10sec contact time. The addition of H2O2 7mg/L increased geosmin and 2-MIB removal efficiency upto approximately 94% and 91%, respectively.

Pulsed UV 처리수에서의 자연유기물질, 잔류염소 및 소독부산물 생성 거동

손진식,한지희 대한상하수도학회 2012 상하수도학회지 Vol.26 No.5

UV technology is widely used in water and wastewater treatment. Many researches have been conducted on microbial disinfection and micro pollutant reduction with UV treatment. However, the study on NOM with UV has limited because low/medium pressure UV lamp is not sufficient to affect refractory organics such as NOM. Pulsed UV treatment using UV flash lamp can be operated in the pulsed mode with much greater peak intensity. The pulse duration is typically in microseconds, whereas the interval between pulses is in the order of milliseconds. The high intensity of pulsed UV would mineralize NOM itself as well as change the characteristics of NOM. Chlorine demand and DBPs formation is affected on the changed amounts and properties of NOM. The objective of this study is to investigate the effect on NOM, chlorine residual, and chlorinated DBPs formation with pulsed UV treatment. UV technology is widely used in water and wastewater treatment. Many researches have been conducted on microbial disinfection and micro pollutant reduction with UV treatment. However, the study on NOM with UV has limited because low/medium pressure UV lamp is not sufficient to affect refractory organics such as NOM. Pulsed UV treatment using UV flash lamp can be operated in the pulsed mode with much greater peak intensity. The pulse duration is typically in microseconds, whereas the interval between pulses is in the order of milliseconds. The high intensity of pulsed UV would mineralize NOM itself as well as change the characteristics of NOM. Chlorine demand and DBPs formation is affected on the changed amounts and properties of NOM. The objective of this study is to investigate the effect on NOM, chlorine residual, and chlorinated DBPs formation with pulsed UV treatment.

제지공정 폐수 전처리 수질예측을 위한 실험적 모델과 통계적 모델 개발

손진식,한지희,이상호 대한상하수도학회 2017 상하수도학회지 Vol.31 No.4

Pulp and paper industry produces large volumes of wastewater and residual sludge waste, resulting in many issues in relation to wastewater treatment and sludge disposal. Contaminants in pulp and paper wastewater include effluent solids, sediments, chemical oxygen demand (COD), and biological oxygen demand (BOD), which should be treated by wastewater treatment processes such as coagulation and biological treatment. However, few works have been attempted to predict the treatment efficiency of pulp and paper wastewater. Accordingly, this study presented empirical models based on experimental data in laboratory-scale coagulation tests and compared them with statistical models such as artificial neural network (ANN). Results showed that the water quality parameters such as turbidity, suspended solids, COD, and UVA can be predicted using either linear or expoential regression models. Nevertheless, the accuracies for turbidity and UVA predictions were relatively lower than those for SS and COD. On the other hand, ANN showed higher accuracies than the emprical models for all water parameters. However, it seems that two kinds of models should be used together to provide more accurate information on the treatment efficiency of pulp and paper wastewater.

아시아 주요국의 해수담수화 플랜트 시장전망과 진출방안

손진식,한지희,김석화,신동우,임재한 대한상하수도학회 2010 상하수도학회지 Vol.24 No.2

Seawater desalination has vest interest in terms of ultimate water resources for the countries suffering lack of water supply. Water demand is steadily increasing due to the population growth and industrialization in Asia. The objectives of this study are to prospect the desalination market in Asia countries including China, India and Singapore, and to propose possible strategies of getting through Asia water market. Water supply in China is increasing up to 5,322,060m3/d in 2015. Northeast coastal areas such as Tianjin, Shandong, Hubei, and Liaoning are expected rapid increase for water demand. The investment of water supply in India would be 1.74 billion dollars during 2006 to 2015. Chennai, Kutch, and Pondicherry have possibility in introducing seawater desalination plants. Singapore is focusing on water reuse, and operating three NEWater plants (water reuse plants). BOT with total solution providing financing, construction, operation etc. is an adequate strategy to getting through China water market, while desalination plant project connecting with power plant is desirable in India. The cooperative system with Korea and Singapore creates synergy effect regarding planning and operating experience of Singapore and EPC ability of Korea.

국내정수장의 잔류염소농도에 대한 조사연구

손진식,강효순 대한상하수도학회 2006 상하수도학회지 Vol.20 No.2

중동 주요국의 해수담수화 플랜트 시장전망과 진출방안

손진식,한지희,김석화,신동우,임재한,Sohn, Jin-Sik,Han, Ji-Hee,Kim, Suk-Hwa,Sheen, Dong-Woo,Lim, Jae-Han 대한상하수도학회 2010 상하수도학회지 Vol.24 No.2

실험적 모델과 인공신경망을 사용한 소독부산물 생성예측

손진식 국민대학교 생산기술연구소 2004 공학기술논문집 Vol.27 No.-

Water treatment facilities face new challenges with regard to maintaining disinfectants as well as reducing disinfection by-products(DBPs). The need to control DBPs in water treatment facilities has stimulated the development of various models including empirical models, kinetic based models, and artificial neural networks (ANN). In order to evaluate the appropriate models for simulating DBPs, several attempts have been made to compare an empirical based model and ANN simulations using bench-scale experiment data. The empirical based model is considered a powerful modeling tool in simulating DBPs. ANN Simulation also provides a potential modeling tool in predicting DBP formation. The external evaluation of these models is further needed by using full-scale monitoring data.

5-aza-2’-deoxycytidine처치에 의해 유도되는 B16F10 세포주의 유전자 발현

손진식,송달원,김태종,채한수,박종욱 대한이비인후과학회 2002 대한이비인후과학회지 두경부외과학 Vol.45 No.8

Background and Objectives:by a tumor, and many types of vaccines such as gene modified vaccines have been developed to increase imunogenicity of vaccine. We studied to determine whether or not 5-aza-2-deoxycytidine (ADC) can increase the immunogenicity of B16F10 melanoma cell. Materials and Method:B16F10 cell was treated with ADC for the induction of DNA demethylation. An ADC treated B16F10 melanoma cell was analyzed first using the reverse transcriptase-polymerase chain reaction (RT-PCR) (MAGE-2, MAGE-5) and immunity-enhancing cytokines (GM-CSF, IL-12), and then by flow cytometry to evaluate the expression of MHC and B7 that are responsible for antigen expres-sion and T cell activation on B16F10 cell surface. In order to evaluate vaccination effect of ADC-treated B16F10 vaccine, each mouse group were injected with PBS, ADC, B16F10 vaccine or B16F10-ADC vaccine and they were also challenged with live B16F10 cell 7 days after vaccination. On the 20th day after live B16F10 cell challenge, the tumor mass size and the Results:ADC treatment for B16F10 melanoma cell increased expresion of MHC and B7. ADC treatment also increased gene expresion of MAGE-2, MAGE-5, GM-CSF and IL-12. The growth of tumor mass was decreased and the mouse survival period was elongated in B16F10-ADC vaccine imunized group. Conclusion:ADC treatment may increase imunogenicity of B16F10 cell, and B16F10-ADC vaccine imunization can induce anti-cancer imunity in vivo. (Korean J Otolaryngol 2002;45:784-90)

정삼투-역삼투 융합 플랜트 기술 개발

손진식,한지희 한국막학회 2015 한국막학회 총회 및 학술발표회 Vol.2015 No.05

정삼투-역삼투 융합 플랜트 기술 개발 연구단은 국토교통부/국토교통과학기술 진흥원의 지원을 받아 시장지배적인 역삼투 해수담수화 공정기술을 탈피하는 기술선도형 정삼투-역삼투 융합 기술을 개발하고자 한다. 정삼투와 역삼투 기술을 결합시켜 기존 역삼투 해수담수화 기술 대비 톤당 전력량 35% 이상 감소, 톤당 생산단가 25%를 절감하는 기술을 개발하는 것을 목표로 한다. 이를 위하여 정삼투-역삼투 융합 플랜트 엔지니어링 기술, 공정 고도화(시스템 최적화, 막오염 제어 및 예측)기술, 저에너지・고효율의 전처리 기술을 개발한다. 실험실규모에서 개발된 모든 기술은 1,000m3/day 용량의 실증 파일럿 플랜트에 적용된다.