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홍진표(Hong, Jin-Pyo),정재화(Chung, Jae-Hwa),서석빈(Seo, Seok-Bin),지준화(Chi, Jun-Hwa),이승종(Lee, Seung-Jun),정석우(Chung, Suk-Woo) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11
Integrated Gasification Combined Cycle (IGCC) power plant converts coal to syngas, which is mainly composed with hydrogen and carbon monoxide, by the gasification process and produces electric power by the gas and steam turbine combined cycle power plant. The purpose of this study is to investigate the influence of gasification process to type and structure of gasifier. For this purpose, the performance characteristics of gasification reaction are analyzed with the operation characteristic of pilot-scale 2-stage coal gasifier. It is found that gasification reaction, floating characteristic of melted slag, particle stick of inside of the gasifier, particle stick and deposit of Syngas cooler are the causes in the different performance characteristics.
카노 모델을 이용한 고창 자연마당의 서비스 품질 속성 분류
홍진표 ( Hong¸ Jin-pyo ),심윤진 ( Shim¸ Yun-jin ),강필구 ( Kang¸ Pil-goo ),최영자 ( Choi¸ Young-ja ),어양준 ( Eo¸ Yang-jun ),서경원 ( Seo¸ Kyung-won ) 한국환경복원기술학회 2021 한국환경복원기술학회지 Vol.24 No.4
This study was conducted to classify quality attributes for quality elements of public service targeting Gochang Jayeonmadang and analyze their impact on resident satisfaction and dissatisfaction by each service quality element by using the Kano model and the customer satisfaction coefficient and dissatisfaction coefficient of Timko(1993). As a result of the study, all 20 quality elements of public service were classified as one-dimensional attributes. Since the Jayeonmadang project restores the damaged natural environment and restores the ecosystem, it is judged that satisfaction is proportionately satisfied as the natural environment has been restored and the ecosystem has been restored. According to Timko (1993)’s analysis of customer satisfaction coefficient, it is believed that the most effective way to improve residents’ satisfaction is to carefully establish and implement maintenance plans and to create a good environment to ensure that plants have settled.
배기가스 세정장치내 유체 유동에 대한 다공성 매질 적용 기반의 전산해석적 연구
홍진표(Jin-pyo Hong),윤상환(Sang-hwan Yoon),윤현규(Hyeon-kyu Yoon),김래성(Lae-sung Kim),안준태(Jun-tae An) 한국기계가공학회 2022 한국기계가공학회지 Vol.21 No.2
Exhaust gases emitted from internal combustion engines contain nitrogen oxides (NOx) and sulfur oxides (SOx), which are major air pollutants causing acid rain, respiratory diseases, and photochemical smog. As a countermeasure, scrubber systems are being studied extensively. In this study, the pressure drop characteristics were analyzed by changing the exhaust gas inflow velocity using a scrubber for a 700 kW engine as a model. In addition, the fluid flow inside the scrubber and the behavioral characteristics of the droplets were studied using CFD, and the design compatibility of the cleaning device was verified. Flow analysis was performed using inertial and viscous resistances by applying porous media to the complex shape of the scrubber. The speed of the exhaust passing through the outlet nozzle from the inlet was determined through the droplet behavior analysis by spraying, and the flow characteristics for the pressure drop were studied. In addition, it was confirmed through computational analysis whether there was a stagnation section in the exhaust gas flow in the scrubber or the sprayed droplets were in good contact with the exhaust gas.
홍진표,이동은,함봉진,이준영,서동우,조성진,박종익,이동우,배재남,박수빈,조맹제,Hong, Jin-Pyo,Lee, Dong-Eun,Hahm, Bong-Jin,Lee, Jun-Young,Suh, Tong-Woo,Cho, Seong-Jin,Park, Jong-Ik,Lee, Dong-Woo,Bae, Jae-Nam,Park, Su-Bin,Cho, Maeng-Je 대한불안의학회 2009 대한불안의학회지 Vol.5 No.1
Background : In spite of the worldwide relevance of obsessive-compulsive disorder Ed-highlight : Unclear. Perhaps consider changing word choice. (OCD), there are considerable differences in prevalence, sex ratio, comorbidity patterns, and sociodemographic correlates. Data on subclinical OCD have been sparse to date. Methods : Data stemmed from the Korea Epidemiologic Catchment Area (KECA) study which had been carried out from April to December 2001. Korean versions of DSM-IV adapted Composite International Diagnostic Interview were administered to a representative sample of 6275 persons aged 18-64 living in the community. DSM-IV based criteria for subclinical OCD were applied. Results : The lifetime prevalence rates for OCD and subclinical OCD were 0.8% and 6.6%, respectively. In both OCD and subclinical OCD, the rates for males and females were not statistically different. OCD was demonstrated to be associated with depressive disorder, bipolar disorder, social phobia, generalized anxiety disorder, and alcohol and nicotine dependence. Additionally, subclinical OCD was associated with posttraumatic stress and somatoform disorders. Comorbidity rates in subclinical OCD were lower than those in OCD. Conclusions : The lifetime prevalence rate for OCD was less than 1% in the Korean general population. Age distribution and comorbidity patterns suggest that subclinical OCD represents a broad and heterogeneous syndrome and not simply a milder form of OCD.
일 농촌지역에서 알코올 남용 및 의존의 유병률 및 연관 변수
홍진표(Jin-Pyo Hong),김성윤(Seong-Yoon Kim),이무송(Mu-Song Lee),안준호(Jun-Ho Ahn),이창화(Chang-Hwa Lee),최명기(Myung-Gee Choi),강혜영(Hae-Young Kang),이군희(Gun-Hee Lee),이철(Chul Lee) 한국중독정신의학회 1998 중독정신의학 Vol.2 No.2
Objective:The purpose of this study was to investigate the prevalence of alcohol abuse and alcohol dependence in a rural area of Korea and to examine the relationship between those prevalences and sociodemographic characteristics of subjects. Method:This study was done as a part of the chronic disease survey of rural area by the Asan Foundation. Among 30 years or older population from Jung Eup, a rural area of Korea, 1734 subjects was sampled using a cluster probability sampling method. Trained interviewers visited and interviewed subjects aged 30 years or older with the alcoholism part of Composite International Diagnostic Interview (CIDI). Response rate was 68.1% (N=1191). Results:The lifetime prevalence of alcohol abuse and dependence in male subjects were 36.0% and 17.5%, respectively. Those of female subjects were 6.7% and 1.6%, respectively. These estimate are similar to those of previous community study. The frequency of alcohol intake in male respondents was 10 times or more a month, but the amount of alcohol intake was dramatically dropped in group 60 years old and over. According to the logistic regression analysis, male and 50 to 69 aged group were significantly more likely to report lifetime or 12 month alcohol dependence. Low education seemed to be correlated with alcoholism, but did not reach statistically significant level. Conclusion:Alcohol abuse and dependence were highly prevalent in the rural community of Korea. Further study about the influence of the alcohol on brain and other organs in community indwellers will be needed for further understanding of the severity of alcohol use and related problems in Korea.
후천성면역결핍증후군(Acquired Immune Deficiency Syndrome ; AIDS) 환자의 정신질환 유병률과 심리사회적 적응
박휘준,홍진표,우준희,안준호,Park, Hwi-Jun,Hong, Jin-Pyo,Woo, Jun-Hee,Ahn, Joon-Ho 대한불안의학회 2009 대한불안의학회지 Vol.5 No.2
Objectives : We examined quality of life, psychosocial adjustments to illness, changes in sexual functioning, and prevalence of psychiatric disorders in AIDS patients compared to patients with chronic hepatitis B virus infection (CHB). Methods : Thirty-one men with AIDS and 50 men with CHB were enrolled. The Short-Form 12-Item Health Survey (SF-12), the Psychosocial Adjustment to Illness Scale (PAIS), and the Changes in Sexual Functioning Questionnaire short form (CSFQ-14) were administered. Results on these assessments were compared between the 31 AIDS patients and 50 CHB patients. The Structured Clinical Interview for DSMIV (SCID) was administered to determine the psychiatric diagnosis only for the AIDS patients. Results : The Physical Component Summary score (PCS) was lower in AIDS patients than in CHB patients (p<0.001). In the section examining sexual relationships, AIDS patients exhibited a lower level of adjustment (p<0.05) and had more changes in sexual function (p<0.05) than did CHB patients. Administration of the SCID to AIDS patients indicated that the lifetime prevalence of any psychiatric disorder was 56.7% ; 43.3% for mood disorders, 33.3% for alcohol use disorders, 26.7% for anxiety disorders, and 20% for adjustment disorder. Patients who had experienced any psychiatric disorder had more severe psychosocial distress (p=0.004) and evidenced a lower level of overall psychosocial adjustment (p=0.030) than patients who had not. Conclusion : We showed that AIDS patients have a high prevalence of psychiatric disorders, and that AIDS patients with psychiatric disorders were particularly low in levels of psychosocial adjustment. Thus, careful attention should be given to psychiatric aspects of AIDS patients emphasizing the early diagnosis and treatment of psychiatric disorders.
Jin-pyo Hong(홍진표),Sang-hwan Yoon(윤상환),Hyeon-kyu Yoon(윤현규),Jung-Tae Kim(김정태),Jun-Tae An(안준태) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.8
Gears, which rotate and transmit power by interlocking two cogwheels, were invented in BC. They have been used in various systems, including industrial machinery, transportation devices, and living facilities, through the industrial revolution. Regardless of how they are used, gears are a major source of noise and vibration. Many effective measures are being taken to reduce the radiation noise generated from gears, most commonly by lubrication. Lubrication in gear units reduces friction on interlocking gear surfaces, dampening radioactive noise. This can be very useful for quiet gear design if these lubricating damping effects can be reflected in the analytical phase for gear design. This study experimentally confirms the properties of lubricated and non-lubricated radioactive noise by designing a decelerator gearbox and analyzing the radioactive noise characteristics by torque, rotation, and the number of gears using computer analysis.
필름기재 표면 코팅제의 첨가물질 조성 조건에 따른 수분산 안료잉크의 프린팅 성능 평가
김혁진(Hyeok-Jin Kim),서혜지(Hye-Ji Seo),강은하(Eun-Ha Kang),한민우(Min-Woo Han),이동현(Dong-Hyeon Lee),권동준(Dong-Jun Kwon),홍진표(Jin-Pyo Hong) 한국염색가공학회 2023 韓國染色加工學會誌 Vol.35 No.4
Water-dispersed pigment is on-going study for without air pollution in the textile and print industry. Primer treatment is essential for the substrate to improve the printing quality of eco-friendly water-dispersed pigment ink. Otherwise in the case of untreated primer, the water-dispersed pigment ink will dry onto the surface and cause defective images. This study was conducted on film substrate coating (primer) to fix eco-friendly water-dispersed pigment ink on film substrate. The drying, bleeding, and color strength of the pigment ink were examined depending on the composition and mixing ratio of the coating solution. The mixing ratio of silica gel in the coating film is increased to 0, 0.5, 1, 2 and 3 and results that DK-1-3 of silica gel ratio of 1 showed the lowest bleeding such as 52%, the letter thickness of 0.76mm and DK-1-5 of SG ratio of 3 showed the highest bleeding such as 304%, the letter thickness of 2.02mm. The mixing ratio of SPA in the coating film is increased to 2.5, 5, 7.5, SPA ratio of 7.5 has a bleeding ratio of 9% and letter thickness of 0.544mm. It showed the closest value to 0.5mm. According to the result, the optimal mixing ratio of binder, polymer coagulant, silica gel is 100:7.5:1.