DO와 ORP를 이용한 축산폐수처리 SBR운전 제어

전병희 ( Byong Hee Jun ),김도환 ( Do Hwan Kim ),최은희 ( Eun Hee Choi ),김성신 ( Sung Shin Kim ),김창원 ( Chang Won Kim ),배현 ( Hyeon Bae ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.5

A pilot scale SBR (working volume, 20㎥) treating piggery wastewater was operated with real wastewater. The operation mode of intermittent feeding of raw water and sub-cycle with repeating anoxic-aeration conditions were adapted to avoid the high-strength nitrogen inhibition. In sub-cycle, aeration time for nitrification was tried to be controled with ORP and/or DO meter. The characteristics of control was somewhat different between ORP and DO. DO showed potential ability to detect complete ammonia oxidation point by the first order differential values or absolute value. Especially, DO was proved to be useful for high loading rates. ORP indicated the ending point of nitrification by the plateau appearing after bending point. Because ORP can be utilized as a diagnosis tool by its good sensitivity for the microbial condition in reactor, the simultaneous application of DO and ORP was recommended for the stable control of SBR.

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

토당귀 종자의 형태적 특성과 발아와 입모율에 대한 저장방법,생장조절제 및 프라이밍 처리 효과

안희정,안복주,·김도현,·안영섭,·김영국,박춘근,이상원,·박충범·차선우,·송범헌, 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.1

This study was conducted to have basic and applied informations to establish the cultivation method and to improve the cultivation techniques of Angelica gigas Nakai through investigating the rates of germination and seedling establishment with treatment of plant growth regulator and seed priming. The germination rates of round shape seed were about 0.3~12% higher than those of parallel shape. The germination rates with different storage durations were increased at the level of 25oC and 4oC with the storage days, while they were clearly higher at -20oC compared to those at 4oC and 25oC without the storage durations. With the results of germination rates with treating of plant growth regulator and seed priming, their rates with the round shape seeds were comparatively higher about 6% than those with parallel shape seed and they were increased with increasing of the storage durations. The germination rates were generally appeared higher with GA3 than did those with seed priming. The highest germination rate was appeared at 50 ppm GA3 of plant growth regulator and at -0.5 MPa PEG6000 of seed priming. The germination rates?ㅤ ?ㅤ of Angelica gigas were different with different temperature, storage durations and the treatments of plant growth regulator and seed priming. These results could be used according to different cultivating conditions.

원발성 위장관 악성 림프종의 임상적 고찰 : 치료 결과를 중심으로

원종호,백승호,홍대식,오도연,박희숙 순천향대학교 1994 논문집 Vol.17 No.4

저자들은 1984년 3월부터 1992년 12월까지 순천향 대학교 부속병원에서 원발성 위장관 악성 림프종으로 진단되었던 23명을 대상으로 다음과 같은 결론을 얻었다. 1. 대상 환자의 나이의 중앙치는 44(23-75)세로 남녀비가 2.8 : 1이었다. 2. 원발병소는 위 10예(43.5%), 소장 8예(34.8%) 및 회맹장 이행부위 5예(21.7%)였고, 병기 Ⅰ??기 8예(34.8%), Ⅱ??기 12예(52.2%), Ⅲ기 2예(8.7%), Ⅳ기 1예(4.3%)였다. 동반된 다른 장기는 주로 복부 임파절이었으며 폐 임파절 침범이 1예 있었고, 간을 침범한 경우가 1예, 위장과 소장에 병발한 경우가 1예 있었다. 조직학적 분류로는 중등도 19예(82.6%) 및 고도 4예(17.4%)였고 10예(43.5%)에서 B 증후가 있었다. 3. 치료를 시행한 20예중 Ⅰ??기 7예는 수술적 치료후 보조항암화학요법을 시행하였으며, Ⅱ??기 13예중 진단적 개복술후 완전절제가 확인된 3예는 보조항암화학요법을, 불완전절제로 확인된 7예는 관해유도 항암화학요법을 시행하였고, 3예는 항암화학요법만을 시행하였다. 4. 치료를 시행한 20예의 생존기간은 중앙치 43(4-100??개월이었으며, 3년 생존율 60.9%, 5년 생존율 40.6%였다. 5. Ⅰ??기 7예의 생존기간은 중앙치 42(11-100??개월이었으며, Ⅱ??, Ⅲ기 13예에서 치료에 대한 완전 관해가 9례(70%), 부분관해(15%), 무반응이 2례(15%)로 관해율은 85%였으며, 생존기간은 중앙치 44(4-52??개월이었다. 6. 완전관해자가 진행시까지의 관해지속기간은 중앙치 43(10-56??개월이었으며, 3년 무병생존율 79.1%, 5년 무병생존율 36.2%였다. Over a 8-year period(March 1984 through December 1992), 23 patients with primary gastrointestinal non-Hodgkin's lymphoma treated at Soonchunhyang University Hospital were analyzed with the following results; 1. The mean age of the patients was 43(23-75) years with male to female ratio of 2.8 : 1. 2. The primary sites of lymphoma were stomach in 10(43.5%), small intestine in 8(34.8%), and ileocecal area in 5(21.7%) and by modified Ann Arbor system, stage Ⅰ?? was 8(34.8%), stage Ⅱ?? was 12(52.2%), stage Ⅲ was 2(8.7%), and stage Ⅳ was 1(4.3%). Histologic classification by Working formulation revealed 19 cases(82.6%) of intermediate grade and 4 cases(17.4%) of high grade. B symptoms were observed in 10 cases(43.5%). 3. Treatments were performed in 20 cases as follows : In 7 cases with stage Ⅰ, complete surgical resection with systemic combined chemotherapy was performed. In 13 cases with stage ⅡE and Ⅲ, complete resection with systemic combined chemotherapy in 3 cases, incomplete resection with combined chemotherapy in 7 cases, and combined chemotherapy only in 3 cases. 4. Median survival duration of 20 treated patients was 43(4-100?? months and 3-year survival rate and 5-year survival rate were 60.9% and 40.6%, respectively. 5. Median survival duration of 7 cases with stage Ⅰ?? was 42 months(11-100??. In 13 cases with stage Ⅱ??, Ⅲ, response to treatment was complete remission in 9(70%), partial remission in 2(15%), and no response in 2(15%) resulting 85% of response rate and median survival duration was 44(4-52?? months. 6. Disease free survival rate of achieving a complete remission was 43(10-56?? months and 3-year disease-free survival rate and 5-year disease-free survival rate were 79.1% and 39.2%, respectively.

정합용 변압기를 고려한 ZVS-FB형 고주파 공진 인버터에 관한 연구

원재선,김종해,김동희,정도영,이상호,이봉섭 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.1

In this paper, a theoretical analysis of zero-voltage-switching inverter with each capacitor in parallel with each switching device is presented along with experimental results. The proposed inverter offers both zero turn-on and zero turn-off switching losses, yielding high efficiency at high frequencies. In addition, the soft switching method reduces switching noise associated with the high frequency ringing and high voltage stress at the switching instants. Also, the equivalent circuit of a matching transformer converted primary to secondary side and normalized parameter for generally description are introduced to the estimation of the proposed circuit. A 1KW class-D inverter was built and tested. The theoretical results are in good agreement with the experimental ones. ZVS can be achieved above the resonant frequency and in a limited range of the load resistance. The proposed circuit is considered to be useful for induction heating applications.

Neuropeptide γ의 구조 및 생리활성

구희정,서정길,김은희,허민도,정준기,박장수,강신원,박남규 부산대학교 유전공학연구소 1997 분자생물학 연구보 Vol.13 No.-

생리활성을 지닌 신경펩타이드의 구조와 활성간의 관계를 규명하기 위하여 고상법으로 합성한 세종류의 neuropeptide γ(mammalian-,trout- 그리고 goldfish-neuropeptide γ)를 사용하여 연구하였다. Circular dichroism spectra에 의하면 mammalian-,trout- 와 goldfish-neuropeptide γ는 완충액 조건하에 모두 random한 구조를 나타내었다. 중성 및 산성 지질 존재 하에서, mammalian-과 trout- neuropeptide γ는 여전히 random한 구조를 취하였다. 그러나, goldfish-neuropeptide γ는 중성 및 산성지질하에서 부분적으로 α-helix구조를 나타내었다. 장관 수축활성에 있어서는 carp 장관, guinea-pig 회장 그리고 rat십이지장에 대하여 비교하였다. Carp에 대해서는 goldfish-neuropeptide γ= trout- neuropeptide γ>mammalian-neuropeptide γ순으로 활서이 나타났다. 그러나, guinea-pig 회장과 rat십이지장에 대해서 mammalian-neuropeptide γ는 어류 유래성 neuropeptide g들 보다 높은 수축활성을 나타내었다. 이러한 결과들은 neuropeptide γ들이 종-특이적인 활성을 나타낸다는 것을 제시한다. The relationship between structure and biological activity was studied on the three neuropeptides(mammalian-,trout- and goldfish-neuropeptide γ)that were syntheized by the solid-phase method. Circular dichroism spectra showed that mammalian-,trout- and goldfish-neuropeptide γadopted an undered structure in buffer solution. In the presence od neutral and acidic liposomes, mammalian-and trout- neuropeptide γ also took a random structure. However, goldfish-neuropeptide γ took an α-helical structure in acidic liposomes. The intestinal motility response was investigated with carp interstines, guinea-pig ileums and rat duodenums. In case of carp intestine, contractine activity was as follows:goldfish-neuropeptide γ= trout- neuropeptide γ> mammalian-neuropeptide γ. On the other hand, the contracile activity of mammalian-neuropeptide γ was more potent than trout- and goldfish-neuropeptide γ in the guinea-pig ileums and rat duodenums. these results suggest that neuropeptide γs showed the species-specific activity.

전자화폐의 활성화 방안에 관한 고찰

강도원,강선희,이수형 남서울대학교 2003 남서울대학교 논문집 Vol.9 No.-

As the electxonic commerce motion by increase of internet use smartens recently, trust problem etc.. are happening regarding pnce payment and so on between person concerned that do electronic Commerce. Therefore, establishment of safe payment method to prevent when electronic commerce pays the former to get high trust, forgery of transaction information and improper acquisition is important. So, electronic money was appeared to realize safe electron payment as new electron payment means for electronic commerce on internet. Electron capital transfer or eIectron of disbursement settlement means and so on is being expose in general phenomenon for safe settlement in these environment. End, electronic money of excellent safety that do from various card mean to intermediary instead of cash, check was appeared. This study wishes to present ways that electronic money that is settlement means to analyze success factor and problems of eiectronic settlement system from e-commerce acts important role to get high trust is activated.

열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.

인터넷 광고현황과 개선방안 연구

강도원,강선희,이수형 남서울대학교 경영연구센타 2003 경영연구 Vol.5 No.-

Internet advertising is an important advertising instruments(media) in the present time. So today's internet advertising grown up exceedingly This study is focus on intenet advertising conditions and various problem. And in connection with problems, this study suggests various improvement programs.

폐플라스틱 유동층 열분해 공정연구

선도원,조성호,배달희,박영성 大田大學校 環境問題硏究所 1996 환경문제연구소 논문집 Vol.1 No.-

Process characterization of waste plastics pyrolysis in a bench scale fluidized bed test unit was investigated. Feasibility of commercial scale process such as proper feeding system and reaction control ability were analysed and confirmed based on the reaction characteristics varying with the plaxtics and system assemblies. Eight pure or waste plastic samples were collected from the industrial waste plastics generation source in Korea. Selected samples were HDPE, LDPE autobovile interior, XLPE electric wire coat, synthetic rubber, EVA shoe sole, PS(monomer and styrofoam) and ABS. The pattern of decomposition reflected composition and molecular structure of plastics. Decomposition of polyolifin produced linear paraffinic and olefinic compounds. Recovery of styrene monomer and aromatic compounds were attained from the phrolysis of PS and ABS. However, secondary reaction was monitored was monitored even from the pyrolysis of aliphatic samples of XLPE and EVA.