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.

BaFBr:Eu²+,Na+ 영상판 제작과 특성

김찬중,김성환,이병화,김완,강희동,김도성,서효진,도시홍 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

Rifampicin에 의한 것으로 추정되는 위막성 대장염1예

김수현,이은우,정종혁,문승현,김동한,양혁승,오영상,김호동,김도현,박혁,박정환,박경옥,이영직 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Pseudomembranous colitis, caused by altering the normal colonic flora and allowing the multiplication of Clostridium difficile, is an deleterious adverse effect of antibiotics. But it is rarely reported by rifampicin. Rifampicin is one of the first line drug in the treatment of tuberculosis and many patients are exposed to its potential adverse effects. We experienced a patient that had abdominal discomfort and hematochezia due to pseudomembranous colitis after receiving antituberculous medication, and which was probably caused by rifampicin. A 82 years old man was admitted with abdominal discomfort and hematochezia for one week. On the past history he had been diagnosed as endobronchial tuberculosis about 4 months ago. Colonoscopy revealed multiple discrete whitish mucosal lesion on rectosigmoid colon, and histologic findings were consistent with pseudomembranous colitis. The antituberculous agents were discontinued and vancomycin was administered. The patient's symptoms were resolved within several days. There was no recurrence after reinstitution of the antituberculous agents excluding rifampicin. We report here on a case of pseudomembranous colitis probably due to rifampicin.

유도 '되치기 본'의 개선 방안에 관한 연구

김의환,김도준,김규수,김관현,김종달,최종삼,조용철,박순진,윤익선,안병근,정 훈,김미정,한성철 龍仁大學校 武道硏究所 1999 武道硏究所誌 Vol.10 No.1

The purpose of this study was to reform practically a Korean Judo's Doechigi-Bon(Forms of Counterattack, judo's Gaeshi no Kata, Judo's Uradori no Kata, Judo's Gonosen no Kata) that was established in 1955 Korea, according to changing of techniques by Judo's modernization, in order to have Judo's carefulness and systematic diffusion. Reform procedure of Judo's Doechigi-Bon was 1st stage, Questionnaire survey 303 judokas, 2nd stage, Technical seminar by judo experts(12 judo professor) 4 times, 3rd stage, wording report for reform, 4rd stage, Discussion and judgement of Teaching and Judgement commission of Korean judo Association(KJA), 5th stage, Public hearing for reform in KJA, 6th stage, Report and decision of board of directors in KJA, 7th stage, public publication of Judo News(No.53) in KJA. Basic principle of reform of Judo's Doechigi-Bon were as table 1. Table 1. Basic principle of reform of Judo's Doechigi-Bon ------------------------------------------------------------------------------- Items Reformed Key Points of Judo's Doechigi-Bon ------------------------------------------------------------------------------- 1. Structure 1) Grand classification : Classified by 3 parts(1,2,3Gyo) 2)Medium classification : Te waza, Goshi waza, Ashi waza devided per each part(Gyo) 3)Sub-classification : Classified five techniques per each part(Gyo) 2. Contents 1) Selected established techniques as possible 2) Considered rationalty and overlapping of counterattack techniques 3. Decision of Conterattack techniques 1) Refered to results of Basic Questionnaire survey 2) Priority to decisions of Judo expert technical seminar -------------------------------------------------------------------------------- Reformed Korean Judo's Doechigi-Bon(Forms of Counterattack techniques-KJA, 1999) are as follows: 1. Gyo; ① Uki otoshi -> Uchi mata ② Harai goshi -> Harai goshi gaeshi ③ O soto gari -> O soto gake ④ Ko uchi gari -> Sasae tsurikomi ashi ⑤ O uchi gari -> Ko soto gari 2. Gyo; ① Ippon seoi nage -> Okuri eri jime ② Tsuri domi goshi -> Uki waza ③ Okuri ashi harai -> Okuri ashi harai ④ Ko soto gari -> Tai otoshi ⑤ Hiza guruma -> Hiza guruma 3. Gyo; ① Kata guruma -> Sumi gaeshi ② Tai otoshi -> Ko soto gari ③ Hane goshi -> Harai tsurikomi ashi ④ Uchi mata -> Tai otoshi ⑤ Tomoe nage -> O uchi gari

2000년 제27회 시드니 올림픽 유도경기 대비: 세계 여자 우수선수들의 개인별 국제경기 기술 특성에 관한 연구

김의환,박순진,김관현,김도준,안병근,정훈,김미정 용인대학교 무도연구소 2000 武道硏究所誌 Vol.11 No.1

The purpose of this study was to analyze the competition techniques traits and of international contest levels each category individual scoring - losing techniques of world elite judokas who. were awarded in the international judo tournaments (I,J.T.) (part 1: ∼O.G'%, part 2 :from O.G'% to July ,2000), and who are expected to participate in the 27th Olympic Games(O.G.) Sydney 2000 to prepare the 27th O.G, which will be held from 16. to 22 September, 2000 at Exhibition Center, Darling Harbour, in Sydney, Australia. The records of the results and contents of competition were obtained out of 97 for women I.J,T., world elite judokas. To decide individual contest levels, groups were devided into 3(A,B,C)groups and points were graded by 3 ways. The I.J.T. that were devided into 3 groups are shown in the table 1.

불응성 자가면역질환에서의 자가조혈모세포이식

민도준,양동원,민창기,김완욱,이상헌,박성환,김동욱,이종욱,조철수,민우성,김범생,김호연,김춘추 대한조혈모세포이식학회 2001 대한조혈모세포이식학회지 Vol.6 No.1

배경: 기존의 치료에 불응하고 예후가 불량한 자가면역질환 환자들에게 최근 고용량 면역억제 및 조혈모 세포이식이 새로운 치료방법으로 대두되고 있다. 저자들은 다발성 경화증(multiple sclerosis, MS) 및 류마티스 관절염(rheumatoid arthritis, RA) 등 2명의 자가면역질환 환자들에서 자가조혈모세포 이식을 시행하였다. 방법: 말초혈액 조혈모세포 가동화를 위하여 cyclophosphamide (4 g/㎡) 및 granulocyte colony stimulating factor (10 g/kg/day)를 투여하였고, CD34+ 세포를 분리·채집 하였다, 이식 전처치로 MS 환자에서 BEAM 및 antihymocyte globulin (ATG) (3.75 mg/kg), RA 환자에서 fludarabine (180 mg/㎡), ATG (10 mg/kg)와 busulfan (8 mg/kg)을 투여하였다. 결과: 호중구 수가 500/㎕ 이상으로 회복되는 기간은 MS 환자에서 9일, RA 환자에서 15일이었다. 혈소판이 20.000/㎕ 이상으로 회복되는 가간은 RA 환자에서 9일 이었고, MS 환자에서는 혈소판 감소증이 발생하지 않았다. 비혈액학적 독성으로 MS 환자에서 WHO 1도의 오심 및 점막염이 관찰되었다. MS 환자는 이식 6개월 후까지 시력감소가 남아있었으나, 이식전에 관찰되던 감각이상 및 운동장애 등의 신경학적 이상 소견은 더 이상 관찰되지 않았다. RA 환자는 이식 1개월 후 관절 증상 및 검사소견의 호전을 보였다. 결론: 불응성 자가면역질환 환자에서 고용량 면역억제 및 조혈모세포이식은 적은 독성으로 높은 치료효과를 기대할수 있으며, 향후 이 시술의 임상적 의의를 규명하기 위하여 전향적이고 장기적인 연구가 필요할 것으로 사료된다. Background: High-dose immunosuppressive therapy followed by autologous hemathpoietic stem cell transplantation (HSCT) has been proposed as a new approach to treat severe, refractory autoimmune diseases. We describe two patients with refractory autoimmune diseases (one multiple sclerosis 〔MS〕and one rheumatoid arthritis〔RA〕) who underwent T-cell-depleted autologous peripheral bleed stem cell transplantation for the first time in Korea. Methods: We mobilized autologous stem cells with cyclophisphamide (4 g/㎡) and granulocyte colony-stimulating factor (10 ㎍/kg/day). Stem cells were enriched ex vivo using CD34-positive immunoselection and reinfused after high-dose chemotherapy with BEAM and antithymocyte globulin (ATG) (3.75 mg/kg) in MS, or fludarabine (180 mg/㎡), ATG (10 mg/kg) and busulfan (8 mg/kg) in RA. Results: The engraftment with an absolute nerutrophil count greater than 500㎕ occurred on day 9 in MS and 15 in RA, respectively. The time to nontransfused platelet count greater than 2.000/㎕ was 9 day in RA. MS patient did not show ant episode of thrombocytopenia. Regimen-related non-hematopoietic toxicity was minimal. For 6 months since HSCT, them patient with MS had been free from previously existed sensory and motor abnormalities except decreased visual acuity. Then patient with RA and only one tender joint and two mildly swollen joints with improvement in laboratory parameters at one month after HSCT. Conclusion: These results underscore the feasibility and potential efficacy of intensive immunosuppression followed by autologous HSCT for treatment of intractable autoimmune diseases. The durability of remission, however, remains to be clarified.

알루미늄 합금과 고장력 강판 접합을 위한 헬리컬 SPR의 단조공정 설계

김원영, 김동범, 김기호, 김도훈, 이인환, 조해용 충북대학교 산업과학기술연구소 2013 산업과학기술연구 논문집 Vol.27 No.2

A self-piercing rivet(SPR) is a mechanical component for joining dissimilar materials. It is used for joining dissimilar material sheets such as aluminum alloy and steel. The self-piercing rivet directly pierces into sheets without drilling sheets beforehand unlike conventional rivets. However, the self-piercing rivet occurs buckling when piercing high strength steel. Therefore, a helical SPR which can pierce high strength steel sheet was designed. In this study, forging process was designed for manufacturing the helical SPR and simulated by using commercial FEM code DEFORM-3D. In the simulation of forging process for manufacturing rivet, process sequence, formability, forging load were investigated. The suitable forging process could be designed by comparisons of simulated results. Experimental trials have been carried out for same conditions as simulated ones. The simulated results agreed with the experimental ones. So, the analytic approach in this thesis is useful to save cost and time in the forging industry

Mild Cognitive Impairment 노인군의 점화효과 특성

박재우,김도관,고선규,고효정,김성환,김재경,서민영,이인수,김지혜 大韓神經精神醫學會 2002 신경정신의학 Vol.41 No.3

연구목적 : 이 연구에서는 K-MMSE에서 25점 이하를 받은 50대 이상 노인들을 MCI(Mild Cognitive Impairment) 군으로 보고 이들의 인지 기능 특성을 점화 효과를 중심으로 살펴보고자 하였다. 먼저, 점화 효과가 MCI 노인군에서 있어서도 유지되고 있는지를 알아보고, 인지 기능의 손상 정도에 따라 점화 효과가 유의미하게 변화하는 지를 살펴보고자 하였다. 방 법 : 본 연구에서는 K-NAME 점수 25점 이하의 노인 96명으 대상으로 ADAS-Cog와 일종의 간접 기억 검사 도구인 지각적 파악 과제를 제작하여 점화 효과를 측정하여 인지 기능의 퇴행이 시작된 고연령군이 나타내는 암묵 기억 능력 특성을 알아보았다. 점화효과는 컴퓨터 상에 사전 노출된 자극과 그렇지 않은 자극을 순간 노출시켜 미리 노출된 자극에 대해 반응 시간이 줄어들고 정확 반응이 증가하는 정도로써 측정하였다. 이 때 지능이나 연령, 학력 수준과 같은 변인이 미치는 영향을 통제하기 위해 한국판 웩슬러 지능 검사의 <어휘>, <토막> 소검사를 실시하였고, 인구통계학적 변인에 관한 면접을 실시하였다. 통계적 분석 과정에서는 먼저, 연구에서 측정된 점화효과의 특성을 알아보기 점화 효과 측정치의 기술 통계치를 구하였으며 다른 측정 변인들과의 상관 분석을 실시하였다. 마지막으로 측정된 점화효과가 인지 기능의 퇴행 수준에 비례하는 지의 여부를 파악하기 위해 ADAS-Cog 및 나이, 교육 연한 및 지능 수준을 독립변인으로 회귀분석을 실시하였다. 결 과 : 먼저 기술 통계 분석 결과에 의하면 본 연구에 참여한 피보험자들의 경우 점화효과에 의해 미리 노출된 자극을 평균 3.6개 더 정확히 파악하였으며 평균 59ms 더 빠르게 반응한 것으로 나타나 이들 집단에서도 점화효과가 유지되고 있음을 알 수 있었다. 다음으로 변인들 간의 상관 분석 결과에 따르면, 정확 파악 반응 점수에 따른 점화효과는 전반적인 인지 기능을 평가하는 K-MMSE 및 ADAS-Cog와 정적인 상관이 있는 것으로 나타났으며 반응 속도로 측정한 점화효과의 경우에는 나이와는 정적인 상관이, KWIS의 <어휘> 소검사 점수와는 부적인 상관이 있는 것으로 나타났다. 또한, 본 연구에서 사용된 점화 효과 측정치를 종속 변인으로 ADAS-Cog와 KWIS의 어휘 및 코막 소검사로 측정한 지능 수준, 나이와 교육 연한과 같은 인구 통계학적 변인을 독립 변인으로 회귀 분석을 실시한 결과에 따르면 정화간응 점수로 측정한 점화 효과의 경우 상관 분석 결과에서와 같이 ADAS-Cog 변인만이 유의미한 효과를 갖는 것으로 나타났으며 반응 속도로 측정한 점화 효과의 경우 나이의 효과만 유의미한 것으로 나타났다. 결 론 : 이러한 결과는 경미한 인지 기능의 손상이 진행되고 있는 고연령군의 경우에는 외현 기억 능력은 손상이 시작되지만 점화효과로 측정된 암묵 기억이 전반적으로는 유지되다가 인지 기능의 퇴행이 진행됨에 따라 노출된 자극을 더 정확히 파악하는 능력이 저하되고 점화 효과에 의해 인출 속도가 빨라지는 현상이 연령이 증가함에 따라 함께 증가하는 것으로 나타남을 말해 준다. Objectives : In this study, the cognitive characteristics, especially priming effect, of above 50 years old age group who had less than 25 points in K-MMSE were investigated. Methods : In this study, an implicit memory test measuring priming effect was made and administered ti old age people who had less than 25 points in k-MMSe in screening session. To control the effect of age, educational level and intelligence, demograohic variables were measured, and the subjects of KWIS, vocabulary and block design were administered. Descriptive statistical analysis of the two priming measures and correlational analysis between variables were done. To test the effect of cognitive functioning on priming effect multiple regression analysis was done. Results : Correlational analysis revealed priming score obtained from correct identification response was positively correlated with K-MMSE and ADAS-Cog. And priming score obtained from mean reaction time was positively correlated with age and negatively correlated with vocabulary substest of KWIS. The regression analysis results indicated from correct identification response, whereas age has significant effect on priming score obtained from mean reaction time. Conclusions : The results revealed that as cognitive deterioration progresses priming effect which identify primed stimulus correctly diminish, and as one grow older within age 50 to 70, priming effect which identifies primed stimulus quickly increase.

혼합 식물추출물에 대한 차응애의 감수성 검정

김창승(Chang Seung Kim),김도익(Do Ik kim),국용인(Yong In Kuk),현규환(Kyu Hwan Hyun),김상수(Sang Soo Kim1) 한국차학회 2016 한국차학회지 Vol.22 No.1

The acaricidal activity of the mixed plant extracts of Gleditsia japonica var. koraien, Camellia sinensis, Cinnamomum cassia, and Lantana camara, toward the tea red spider mite, Tetranychus kanzawai Kishida was evaluated in laboratory bioassays. Treatments with mixtures 1 and 3 were effective against the adult females of T. kanzawai and yielded 87.0 and 85.6% adulticidal activity at 7 days after treatment, respectively. Mixture 3 revealed 78.7% adulticidal activity. However, mixtures 4 and 5 had lower adulticidal activity than the other treatments. The adult females of T. kanzawai treated with mixtures 1 and 3 produced only 22.5-22.8% as many eggs as did the control females. The residue of the plant extracts tested had low adulticidal activity (16.3-27.2%). All of the plant extracts tested were ineffective against the eggs of T. kanzawai. Treatments with mixtures 1 and 3 were effective against the nymphs of T. kanzawai and led to emergence rates of 20.7 and 25.3%, respectively. These results suggest that mixtures 1 and 3 might be used for the control of T. kanzawai.

SrCI_2:Eu^2+ 형광체의 광발광 및 광자극발광 특성

도시홍,서효진,김영국,김도성,김성환,김찬중,이병화,김완,강희동 한국센서학회 2002 센서학회지 Vol.11 No.6

고상반응법으로 SrCl_2:Eu^2+ 형광체를 제작하고, 제작한 형광체의 광자극발광과 광발광 특성을 조사하였다. SrCl_2:Eu^2+ 형광체와 광발광 및 광자극발광은 Eu^2+ 의 5d->4f 천이에 기인되었으며, 355 nm의 광으로 여기시켰을 때 광자극발광과 광발광 스펙트럼의 파장범위는 모두 380~440nm이었고, 피이크 파장은 407nm이었다. SrCl_2:Eu^2+형광체의 선량의존성은 2.5 mGy~200mGy영역에서 우수한 선형성을 나타내었으며, 상온에서 광자극발광의 fading은 20분에 60%이었다. SrCl_2:Eu^2+ phosphors were prepared by the solid phase reaction method, and their photostimulated luminescence(PSL) and photoluminescence(PL) characteristics were investigated. The PSL and PL peak of the SrCl_2:Eu^2+ phosphors are due to the 5d->4f transition of Eu^2+ ions in phosphors. The PSL and PL spectrum obtained by the 355 nm exitation was observed in 380~440 nm region with the peak at 407 nm. The dose response of the PSL phosphors were linear within 2.5 mGy ~ 200 mGy of 100kV X-ray. The fading of the phosphors at room temperature was approximately 60% after 20 min.