냄새제거용 첨착활성탄 개발에 관한 연구

노성희,차진명,김선일 한국공업화학회 2005 응용화학 Vol.9 No.1

In this study, we developed impregnated activated carbon manufacturing process, and investigated the possibility of using coconut as a activated carbon for odor removal. Among the five collectors, KCI, NaOH, Ki, HNO₃, and H₂SO₄, that were added to the adsorption process for the odor removal of H₂S and NH₃, the treatment with H₂SO₄ showed the best result having the adsorption quantity of 4.6 mg/g.

염색폐수 처리를 위한 부상공정에서 아민투여량과 pH의 영향

노성희,차종희,김선일 조선대학교 생산기술연구소 2006 生産技術硏究 Vol.28 No.2

The removal of colours from aqueous solution and dispersions has been studied by dispersed-air flotation, in a semi-batch column. Two colours were used for the experiments: Basic Yellow 28 (basic) and Direct Orange 31 (basic). All two were effectively removed by flotation within 8 min. Sodium dodecyl sulfate, sodium oleate and amines were found to be effective as collectors in the removal of colour, which was found to be related to the pH of the solution and the amount of collector added to it with high collector dosages causing the process to become pH-independent.

폐석회 담체를 이용한 MBR공정에서 영양염류 제거 특성

노성희,김선일 한국공업화학회 2005 응용화학 Vol.9 No.1

In this research, we developed support carrier manufacturing process, very economical and increased porosity and surface roughness. We used waste lime to do disposed which currently rapidly increased to make support carrier. The manufactured support carrier was used for nutrient removal and its removal efficiency was also investigated. Nutrients removal efficiency increased with the increase of support carrier volume fraction.

폐석회 담체를 이용한 고정생물막 공정에서의 영양염류 제거

노성희,김선일 한국공업화학회 2003 응용화학 Vol.7 No.1

This study was performed to investigated the possibility of using waste lime as a support carrier for wastewater treatment. Cubic type support carriers were prepared as follows : ① mixing in water (waste lime, curdlan) ② pH contorl(pH12 →pH 7) ③heating (120℃, 30min) ④dehydrating using freeze dryer. In the case of filing support carrier high removal efficiencies of 25% were developed waste lime support carrier were confirmed in this test.

응집제 첨가 활성슬러지법과 침지형 막분리의 혼성공정에 의한 폐수처리에 관한 연구

노성희,김선일 한국공업화학회 2003 응용화학 Vol.7 No.2

This study focused on a submerged membrane bioreactor in conjunction with coagulant addition coagulant. such as alum in order to improve treatment efficiency. especially phosphorus removal and to removed by biological, chemical reaction and membrane separation mechanism. As the result of dosing alum into MBR, flux was stable and permeate pressure was bring down remarkably.

통합심리치료의 인지분화훈련이 정신분열병 환자의 기초 인지기능에 미치는 영향

이희상,현명호,조현상,이연희,김태용,장순아,노규식,정기립,이만홍,유계준 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

연구목적 : 정신분열별 환자들을 대상으로 통합심리치료의 소프로그램인 인지분화훈련을 실시하여 실행기능, 개념형성능력, 언어능력 및 추론력에 대한 훈련이 보다 더 하위단계의 인지기능인 주의력, 기억력, 반응시간 등을 호전시킬 수 있는 지를 알아보고자 하였다. 연구방법 : DSM-IV상 정신분열병으로 진단된 24명의 입원환자를 무작위로 양분하여 한 군은 인지분화훈련군으로 다른 한 군은 대조군으로 나누었다. 훈련군은 4주동안 1주일에 3회(매회 60분간)로 총 12회의 통합심리치료의 인지분화훈련을 받았으며 대조군은 동일한 시간동안 정신건강교육을 받았다. 훈련전후에 훈련군과 대조군을 대상으로 개정판 Wechsler 기억검사로 주의집중력, 장·단기 기억력을 측정하였고 Vienna test system중 결정반응시간검사로 반응시간, 반응결정시간, 반응운동시간을 평가하였다. 연구결과 : 1) 주의집중력에서는 훈련군과 대조군사이에 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 2) 단기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=10.46. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 3) 장기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=15.09. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 4) 반응시간에서는 상호작용 효과(F(1,24)=5.18, p〈.05)가 있었다. 5) 반응운동시간에서는 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 6) 반응결정시간에서는 상호작용 효과(F(1.24)=6.00, p〈.05)가 있었다. 결 론 : 통합심리치료의 인지분화훈련은 정신분열병 환자에서 하위단계의 인지기능 중 반응시간(특히 반응결정시간)을 단축시키는 효과가 있었다. Objectives : The purpose of this study was to investigate the effects of cognitive differentiation training of Integrated Psychological Therapy(a training program of executive function, concept formation, language, and abstraction) on micro-level cognitive function such as attention, memory and reaction time in patients time in patients with schizophrenia. Methods : Twenty-four inpatients diagnosed as schizophrenia using DSM-IV were randomly assigned to 2 groups. The training group went through a total of 12 sessions of cognitive differentiation training for 4 weeks. The control group received psychoeducation program during the same period. Wechsler Memory Scale-Revised and Decision-Reaction Timer of Vienna Test System were administered to all patients, both before and after the training program. Results : 1) In the attention and concentration scores of Wechsler Memory Scale-Revised, between group, within group and interaction effects of training were not significant. 2) In the short-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=10.46, p〈0.05), but the between group and interaction effects did not reach significance. 3) In the long-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=15.09, p〈0.05), but the between group and interaction effects did not reach significance. 4) In the reaction time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=5.18, p〈0.05). 5) In the motor time scores of Decision-Reaction Timer, between group, within group and interaction effects of training were not significant. 6) In the decision time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=6.00, p〈0.05). Conclusion : Our findings suggest that cognitive differentiation training of Integrated Psycho-logical Therapy is partly effective on improving micro-level cognitive functions such as reaction time(especially, decision time) in patents with schizophrenia.

傳統建築物保存地區내에서의 燃燒速度式을 고려한 防災計劃의 수립과 災難危險度評價 시스템 構築에 관한 硏究

김희성,노삼규 한국화재소방학회 2001 한국화재소방학회논문지 Vol.15 No.4

The purpose of this study is to set up disaster prevention plan and risk assessment system considering combustion velocity at traditional housing zone. The combustion velocity analysis could contribute to build in disaster prevention technique through the potential risk analysis of the area, such analysis also able to set up comprehensive disaster prevention management system. Following results have achieved through the combustion velocity calculation. ① The combustion velocity was calculated in order of the below winds, the above winds and the side winds. ② It must be careful to set up disaster prevention plan in case of the below winds. ③ The combustion velocity was calculated at the density zone where neighboring Distance and Length was small. ④ It proved that factors of each parameter not mostly effect to analyse the combustion velocity in limit of the 30 minutes after ignition. ⑤ At the density zone where Distance and Length is small the duration of transfer to neighboring house takes up to 4 minutes, it is required to set up of emergency response plan to minimize the fire dispersion. Keywords : Combustion velocity, Disaster prevention, Risk assessment

연속 냉각에 의한 저탄소 보론 강의 베이나이트 변태 특성에 관한 연구

이상윤,김영희,노용식,김영재 동아대학교 공과대학 부설 한국자원개발연구소 1989 硏究報告 Vol.13 No.1

This study has been carried out to investigate into bainitic transformation characteristics systematically with changes in both austenitizing temperature and time. The rapid changes in the slope of cooling curves are thought to occur due to the evolution of transformation latent heat during air cooling to room temperature from austenitizing temperatures. From this rapid change, it is possible to establish the inflection point as bainitic transformation strat temperature which is shown to gradually increase with increasing austenitizing time in a temperature range of 900℃ To 1150℃. Bainitic transformation start temperature has been found to depend on austenite grain size showing that bainitic transformation start temperature increase as austenite grains are coarsened.

폐석회 담체를 이용한 고정생물막 공정에서의 영양염류 제거 특성

김선일,노성희 한국공업화학회 2004 공업화학 Vol.15 No.1

본 연구에서는 폐석회를 재활용하기 위한 방안으로 폐석회를 이용하여 미생물 부착이 용이한 기공이 크고 높은 표면 거칠기를 갖는 담체를 제조하여 폐수 중의 영양염류 제거 가능성을 검토하였다. 선행 연구로서 폐석회 첨가량에 따른 인 제거 특성을 조사하고자 회분식 실험을 수행한 결과 인의 효과적인 처리를 위한 폐석회 첨가량은 PO₄-P 용액 농도 100 ㎎/L에 대하여 8 g/L이며, 폐수 중에 함유되어 있는 PO₄-P 농도에 대한 폐석회의 적정 첨가량은 1 : 80 정도임을 알 수 있었다. 정육면체의 폐석회 담체는 ① 혼합(폐석회, 커들란) ② pH 조절(pH 12 → pH 7) ③ 가열(120 ℃, 30 min) ④ 건조(-70 ℃, 48 hr) 과정을 거쳐 제조하였다. 본 연구로서 새로 개발한 다공성 폐석회의 충진율에 따른 생물학적 포기조 내의 폐수 중 영양염류 제거율에 관하여 조사하였다. 반응기 내에 폐석회 담체의 부피 퍼센트를 10%에서 30%로 증가시켰을 때 질소와 인의 제거율은 각각 60%에서 88%와 10%에서 88%로 증가하였다. 이 결과에서 알 수 있는 바와 같은 새로 개발한 폐석회 담체를 폐수처리에 적용할 경우 매우 유용하게 활용될 수 있을 것으로 사료된다. In this study, new porous waste lime support carriers were developed and their removal efficiency of nutrient from wastewater in the biological aeration reactor was investigated. The effect of waste lime addition on the phosphate removal efficiency was investigated and the optimal waste lime concentration was found to be 8 g/L for 100 mg/L of PO₄-P solution. Cubic support carriers were prepared in the following order : mixing waste lime with curdlan solution. decreasing pH from 12 to 7, heating the samples at 120℃ for 30 min, and finally. dehydrating the samples at 70℃ for 48 hrs. When the volume percentage of the waste lime carriers increased from 10% to 30%, the removal efficiency of nitrogen significantly increased from 60% to 88%, and that of phosphate from 10% to 88%. These results indicate that the application of this new waste lime support carrier for wastewater treatment is very promising.

세라믹 정밀여과막 생물반응기를 이용한 매립지 침출수 처리

윤영재,노성희,김선일 한국공업화학회 2003 응용화학 Vol.7 No.2

The results that the membrane bioreactor allows the treatment of ammonia and part of the COD, with a limited production of sludges. The elimination yields observed on the membrane bioreactor are high, starting from a biologicaly equilibrated efflent, since the ratio C/N/P is slightly deficient in P. The Chemical Oxygen Demand and Total Organic Carbon are climinated more than 70%. The Nitrification rate nears 98% despite the important variability of the ammonia concentrations inside the raw leachate. The Suspended Solids are eliminated 100% thanks to the microfiltration membrane.