강우시 채수빈도가 논 오염부하량 산정에 미치는 영향

한국헌,김진호,이종식,이정택,조재영,윤광식 한국환경농학회 2005 한국환경농학회지 Vol.24 No.1

한정된 수질자료를 이용 오염부하 산정시 집중적으로 많은 샘플을 채취한 경우에 비해 어느 정도 차이를 갖는지를 규명하는 것은 모니터링에 따른 오염부하량 산정결과의 신뢰 범위 파악뿐만 아니라 경제적인 수질 샘플 채수빈도 수립에 곡 필요한 것으로 사료된다. 그 결과를 요약하면 다음과 같다. 논에서의 강우-유출시 채수 빈도가 오염부하 산정에 미치는 영향을 파악하기 위해 9개의 강우사상에 대해 2시간 간격으로 연속 수질샘플을 실시하여 분석한 결과 전체적으로 강우-유출과정 중 T-N, T-P, SS 농도는 시간별로 증·감변동을 하였으나 유량과의 상관성은 나타나지 않았다. 수질샘플 횟수에 의한 영향은 강우-유출과정 중 5회 정도 샘플을 실시하면 많은 수의 샘플을 채수한 경우에 비해 T-N ±15.2%, T-P는 -20.0~26.2%, SS는 -28.6~35.7% 범위안에서 오염부하를 추정할 수 있는 것으로 나타났으며, 차이범위가 ±10% 내에 들어가기 위한 샘플수는 일주기 조사시 T-N, T-P의 경우는 6회, SS의 경우는 단기유출시는 4회 정도 실시하면 되고, 장기 유출시에는 11회 정도 실시하면 되는 것으로 조사되었다. 유량-유하부하량 관계식으로 ±10%내의 차이를 보일 샘플횟수는 T-N의 경우는 6회 이상, T-P와 SS는 9회 이상 정도 실시하면 되는 것으로 조사되었다. In order to examine effects of sampling frequency during rainfall-runoff process from paddy field on the estimation of pollution load, EMCs of several water sampling frequencies were examined. Water quality samples were conducted by every two hours interval for each event. It was found that difference of load estimation between five times sampling and two hours consecutive sampling during rainfall-runoff showed 15.2~-15.2% for T-N, 20.0~-26.2% for T-P, 28.6~-35.7% for the SS, respectively. In the same way, the effects of number of sampling data on estimation of pollution load using runoff-mass load(L-Q) method were investigated. L-Q equation made of five times sampling data provided 10% differences in estimation of mass loads of T-N, T-P, and SS when compared to those by L-Q equation using entire two hours consecutive sampling data during runoff process.

제10회 ASIAN GAMES의 TENNIS 운영결과분석

서국웅,이종규 釜山大學校 附設 體育科學硏究所 1987 體育科學硏究所 論文集 Vol.3 No.-

성인 급성 백혈병의 치료에 관한 연구

김종완,장준,신승훈,윤일국,박철신,김삼용 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.2

19 adult ALL patients were treated with follwing regimens; VP regimen to 5 patients, VPA regimen to 4 patients, multi-drug combined intensive therapy of Hoelzer regimen to 10 patients. The results of therapy are as follows: 1. Complete remission occured in 3 patients on VP regimen(60%), 4 patients on VPA regimen (100%), 8 patients on Hoelzer regimen (80%), respectively, and overall complete remission rate was 78.9%. 2. Mean survival time of total patients was 13.8 months, and in complete remission group, it was 16.2 month, but in non-complete remission group, it was 1.8 month. 3. Factors favorable for complete remission were absence of organomegaly(P<0.05) and initial leukocyte count under 30,000/㎟(P<0.01), factors favorable for the survival duration were initial leukocyte count under 30,000/㎟(P<0.05) and remission within 4 weeks of treatment.(P<0.01). 4. Recurrence rate were 40% in VP regimen, 50% in VPA regimen, and 20% in Hoelzer regimen. 5. During the remission induction period, common side effects of chemotherapy were alopecia, nausea, vomiting, mucositis, and general weakness and it was severe in VPA regimen and Hoelzer reimen than in VP regimen. But no significant difference was noted between VPA regimen and Hoelzer regimen. From the above results, we could confirm the importance of multiple drug combined intensive chemotherapy of remission regimen and periodic reinduction chemotherapy.

웹 사이트 정보에 대한 사이버 소비자들의 지각과 만족 : 목표지향소비자와 경험지향소비자간 비교를 중심으로

신종국,박민숙 釜山 大學校 經營 經濟 硏究所 2006 經營 經濟 硏究 Vol.25 No.1

액정 함유(W/O)/W 에멀젼형 액막을 이용한 LD-라세믹체 아미노산으로부터 L 및 D 아미노산의 추출분리

김종국,김우식,이병철 연세대학교 산업기술연구소 1993 논문집 Vol.25 No.1

The purpose of this study is to separate each L-and D-amino acid from the racemic mixture of amino acid. which is obtained in chemical synthesis, using the liquid emulison membrane containing cholesteric liquid crystal. The LEM containing cholesteric liquid crystal was made according to kinds of cholesteric liquid crystal. And the selectivity of pure optical amino acid was obtained by extracting L and D-phenylalanine relatively, using the LEM containing cholesteric liquid crystal. When the optical activity of liquid ?? has negative value, the selectivity of D-phenylalanine was greater than that of L-phenylalanine in non-equlibrium state. But the selectivity disapperared as the process appoaches the eqilibrium of extraction and stripping.

410L Stainless Steel의 소결합금의 자기적 성질과 조직

임종국 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.4

The relationship between magnetic properties and struvture of 410L stainless stell alloy sintered at various tempetature has been studied.

담팔수깍지벌레의 천적에 관한 연구 : Homoptera:Coccidae

김종국,林本 桂 江原大學校 森林科學硏究所 1998 Journal of Forest Science Vol.14 No.-

要約담팔수깍지벌레의 천적 종류는 1차 기생벌 6종, 2차 기생벌 3종, 포식성 무당벌레 5종 및 풀잠자리류 1종등 총15종이 確認되었다. 1차 기생벌 가운데 Aneristus ceroplastae, Microterys flavus, Coccophagus yoshida의 밀도가 높았으며, 최 우점종은 Aneristus ceroplastae이었다. Aneristus ceroplastae와 Coccophagus yoshidae는 單寄生性의 內部寄生者이었으며 Microterys flavus는 多寄生性 內部寄生者이었고 2차 기생벌 가운데 최우점종인 Tetrastichus sp.는 Aneristus ceroplastae와 Microterys flavus의 용에 기생하는 單寄生性의 外部寄生者이었다. 또한 주요 기생벌의 寄生率 및 季節的 發生消長을 究明하였다. 捕食性 天敵은 Rhyzobius forestieri와 Chilocorus kuwanae가 우점종이었으며 이들 種에 대한 發生消長 및 捕食量을 究明하였다. 특히 Rhyzobius forestieri는 담팔수깍지벌레를 포식하는 종으로 일본 구주지방에서 처음 記錄하였다. ABSTRACTIn Fukuoka, the natural enemies of Protopulvinaria mangiferae were confirmed as six primary parasitoids, three hyperparasitoids, and six predators. Among the primary parasitoids. Aneristus ceroplastae, Microtei-ys flavus, and Coccophagus voshidae were relatively abundant in Fukuoka. Aneristus ceroplastae and Coccophagus wshidae were solitary endoparasitoid, whereas Microtek's flavus was a gregarious endoparasitoid. Tetrastichus sp. was a hyperparasitoid and solitarily ectoparasitic to the pupae of Aneristus ceroplastae and Microterys flavus. The seasonal fluctuation of parasitisim and adult emergence of the important parasitoids was investigated in Fukuoka. Among the predatorys, Rhyzobius forestieri and Chilocorus kuwaiwe were relatively abundant, and seasonal fluctuation of adult emergence and consumption of the host were studied. As the first record from Japan, Rhyzobius forestieri was collected on leaves of Elaeocarpus sylvestris with heavy infestation of Protopulvinaria mangiferae.

광펌핑된 루비듐 원자의 원형 편광 분광

박종대,권병국 培材大學校 1997 培材論叢 Vol.2 No.-

반도체 레이저의 주파수를 절대적으로 안정화시키기 위하여 루비듐 원자의 흡수선을 이용하였다. 이를 위해 두 개의 서로 수직인 편광자 안에 류비듐 셀을 설치하고, 광펌핑으로 루비듐 원자에 원형 복굴절을 유도하였다. 반도체 레이저에서 나온 레이저 빔이 이 셀을 통과하여 되먹임 되도록하여 광학적으로 반도체 레이저의 주파수를 안정화 시켰다. Absorption spectrum of Rubidium atoms was utilized to stabilize the oscillation frequency of a semiconductor laser. A Rubidium cell was installed between crossed polarizers and circular birefringence was induced by optical pumping. The frequency of a semiconductor laser was stabilized by optical feedback of transmitted laser beam through the optically pumped cell.

외부자극에 따른 유기박막의 특성에 관한 연구

박종국 三陟大學校 2000 論文集 Vol.33 No.1

We have examined the electrical properties of L-α-DLPC Langmuir(L) films by using a displacement current measuring technique with pressure stimulation. Displacement current was generated when the sample spread volume was about 280㎕, 360㎕ and compression velocity was about 30, 40, 50mm/min. Displacement current was generated in the range of gas state, gas/fluid state and fluid state in the course of monolayer compression. From the result, it is known that displacement current is generated in the range of high surface pressures as compression velocity become faster.

슬개골 재발성 탈구와 아탈구에 대한 수술적 치료

안종국,이창수 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2

Purpose: The purpose of this study is to provide the general guidence of treatment of recurrent patella dislocation and subluxation. Materials and Method: We studied retrospectively 24 patients who underwent the operation for the recurrent patella dislocation and subluxation from september 1997 to august 2002. The procedures were lateral retinacular release, medial reefing and proximal and distal realignment surgery. The clinical evaluation was graded by Crosby and Insall's criteria and radiological parameters were post operative congruence angle(CA) and patellofemoral joint degeneration. Result: In clinical evaluation, 9 patients showed excellent result, 16 patients good result and 3 patients fair to poor result. Among the 3 patients who showed fair to poor result, there was chronic synovitis in one patient. So we did arthroscopic irrigation and debridement. After that, Symptom improved, Congruence angle(CA) changed average 20.4 degrees to 12.3 degrees. Conclusion: Age and Q angle are factor in deciding the procedures of treatment of recurrent patella dislocation and subluxation. Also it is very helpful in deciding the further procedures to evaluate the patella tracking in operation filed artnroscopically.