예취빈도에 따른 질소시비가 오차드 그라스의 영양가와 양분수량에 미치는 영향

조익환,전하준,김민 대구대학교 과학기술연구소 1999 科學技術硏究 Vol.6 No.2

This experiment was carried out to investigated the effects of levels of mineral nitrogen under various cutting systems on the nutritive value and nutrient yields of orchardgrass (Dactylis glomerata L.) during harvested years in 1993-1995. The contents of crude protein (CP), total digestible nutrients (TDN), relative feed value (RFV) and annual nutrient yields in relatively wet year (1993) were significantly higher than those in the other harvested years, but the tendency of contents of acid detergent fiber (ADF) and neutral detergent fiber (NDF) were against. The contents of CP, TDN, RFV of all cutting frequencies were highest at the last cut, but lowest at the 2nd cut. The annual nutrient yields were highest at the 1 st cut in 3 cuttings, and at the 2nd cut in 4 and 5 cuttings, respectively. Significantly higher contents of CP in all cutting frequencies appeared in according to increase the levels of mineral nitrogen, but the contents of ADF were lower with nitrogen fertilization of 60 kg ha^(-1) cut^(-1) in 4 and 5 cuttings than those in non-fertilized plots. Higher efficiencies of dry matter production (kg DMY kg^(-1) N), crude protein production (kg CPY kg^(-1) N) and total digestible nutrients production (kg TDNY kg^(-1) N) in response to mineral nitrogen fertilization were recorded as 12.9, 1.4 and 7.6 kg at level of 360 kg ha^(-1) in 3 cuttings, 27.3. 2.7 and 16.0 kg at level of 120 kg ha^(-1) in 4 cuttings, 20.5, 2.0 and 12.7 kg at level of 360 k, ha^(-1) in 5 cuttings, respectively. In all treatments, negative correlation between CP and ADF or NDF appeared (P<0.001). Positive correlations were recorded between CP and TDN or RFV. and among TDN and nutrient yields (P<0.01).

간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례

조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-

Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.

119구급대를 통한 서울지역 외상환자 진료체계에 대한 통계분석

서길준,이승한,조익준,권운용,송형곤,이중의,윤여규 대한응급의학회 2001 대한응급의학회지 Vol.12 No.2

Backgroud: Despite continous efforts to improve the prehospital trauma care system in Korea, the preventable death rate has been reported to be high. The purpose of this study was to evaluate the prehospital trauma care system in Seoul by analyzing 119 rescue databases. Methods: The 119 rescue data bases of 22,275 trauma patients, who were transported to the secondary and tertiary hospital in Seoul by Seoul 119 rescue services from January 1, 2000 to December 31, 2000, were analyzed. Results: The response time(mean 3.7 min.) showed no time, weekly, and regional variations. However, the transport time from field to hospital showed was high in the morning rush hour(7:00 to 10:00 am), and was gradually decreased and the lowest between 10:00 pm and 7:00 am. There was also a regional variation in the transport time, which was short in the central area and long in the peripheral area of Seoul. Prehospital cares were given to the 10,999 trauma patients(49.4%). Of the 464 unresponsive patients(2%), only 236 patients were identified in transported hospitals. The outcomes of these unresponsive patients were DOA(54%), survival(19%), death in ER(14%), transfer to other hospitals(8%), and death after admission(5%) in order. Conclusion: We suggest that this study may be helpful to the establishment and improvement of the prehospital trauma care system as well as the determination of the adequate numbers and locations of trauma center in Seoul.

회맹장 판막에 발생한 아니사키스증 1례

이재익,박정하,김준영,조영완,진한영,강명주,정은욱,박석주,양성연 인제대학교 2006 仁濟醫學 Vol.27 No.-

Anisakiasis refers to parasitic infestation by nematode larvae that belongs to the subfamily Anisakinae, and this condition is seen in people who eat inadequately prepared or raw salt-water fish. While gastric anisakiasis is commonly diagnosed by endoscopic technique, intestinal anisakiasis is rare because it is less common and the clinical and radiologic features are poorly understood. The authors report a case of human anisakiasis involving the ileocecal valve in 62-year-old man who had the history of eating raw cuttlefish.

지렁이분립과 커피찌거기의 혼합상토가 케일유묘의 생육에 미치는 영향

전하준,조익환 대구대학교 과학기술연구소 1996 科學技術硏究 Vol.3 No.1

This study was carried out to find the effects of the mixtures of earthworm cast and coffee lees as a vegetable plant growth medium on the growth of hale seedlings. The mixed ratios of earthworm cast and coffee lees were 100:0, 75:25, 50:50 25: 75 and 0:100%. The results of the study are as follows: 1. The hydrogen ion concentration(pH) was recorded 7.54 in nursery soil with 100% of earthworm cast treatment, but the lower mixed ratios of earthworm cast in nursery soil were, the more it fell down. Thus, pH in 100% of coffee lees treatment and commercial plant growth medium as control treatment was showed 5.68 and 5.80, respectively. 2. The nursery sorb with 100% of earthworm cast was generally higher than treatment of the others in shoot dry weight per plant. The shoot dry weight per plant was also high in the control treatment except 3rd week, but there was no significant between the control treatment and the treatment including 75% of earthworm cast and of 25% of coffee lees. 3. As growth stages were developed, the plant iength(cm), number of leaves and diameter of stem of kale seedling were increased in all treatments. Especially, it was clear in 100% of earthworm cast treatment. In the meanwhile, the plant Iength(cm), number of leaves and the diameter of stem in the control treatment were higher than those of in treaments consisting both of 75:25 and 50:50(%) of mixing ratios with earthworm cast to coffee lees in the early growth, but in the latter growth in the mixture of 75% of earthworm cast and of 25% of coffee lees was showed a similar tendency to the control treatment.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

비예혼합 제트 부상화염에서 노즐 홀톤에 의한 소음 특성 연구

조준익(Joon-Ik Jo),강기중(Ki-Joong Kang),이기만(Kee-Man Lee) 한국연소학회 2011 KOSCOSYMPOSIUM논문집 Vol.- No.43

An experimental investigation of the characteristic of non-premixed lifted flames with high-frequency has been performed. Before the fuel was supplied to nozzle, the fuel was supplied through a burner cavity which was located under the nozzle. The fuel passed through the excitation cavity under the influence of the high-frequency affects the lifted flame characteristics. The measurements were performed in flow range that occurs lifted flame and blow out. When the high-frequency is generated from burner cavity, the lifted length became shorter, and noise reduced comparing to unexcitation case. Additionally, operating flow range was increased and diameter of flame base became smaller with high-frequency effect. Through this experiments, it’s ascertained that the high-frequency excitation can be adopted with effective method for flame stability and noise reduction.

비예혼합 제트 부상화염에서 노즐 홀톤에 의한 소음 특성 연구

조준익(Joon-Ik Jo),강기중(Ki-Joong Kang),이기만(Kee-Man Lee) 한국연소학회 2011 KOSCOSYMPOSIUM논문집 Vol.- No.42

An experimental investigation of the noise characteristics of non-premixed lifted jet flames with a burner cavity has been performed. Before the fuel was supplied to nozzle, the fuel was supplied through a cavity which was located under the nozzle. The range of the experiment was lift-off limit of the flames to blow-off limit. When the burner cavity installed, there was significant reduction in sound level pressure and lift-off height was reduced. Additionally, the width of flame base was got narrowed, and blow-off limit was increased by the cavity effect. Therefore it is ascertained that the cavity can be adopted with effective instruments as a method for noise reduction and flame stability.

비예혼합 제트 화염에서 고주파 발생에 의한 부상 화염 특성 연구

조준익(Joon ik Jo),강기중(Ki Joong Kang),이기만(Kee Man Lee) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10

An experimental investigation of the characteristic of non-premixed lifted flames with high-frequency has been performed. Before the fuel was supplied to nozzle, the fuel was supplied through a speaker which was located under the nozzle. The fuel passed through the excitation speaker under the influence of the high-frequency affects the lifted flame characteristics. The measurements were performed in flow range that occurs lifted flame and blow out. When the high-frequency is generated from speaker, the lifted length became shorter, and noise reduced comparing to unexcitation case. Additionally, operating flow range was increased and diameter of flame base became smaller with high-frequency effect. Through this experiments, its ascertained that the high-frequency excitation can be adopted with effective method for flame stability and noise reduction.

버너공동을 갖은 비예혼합 제트 부상화염에서 소음특성

조준익(Joon Ik Jo),강기중(Ki Joong Kang),이기만(Kee Man Lee) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5

본 연구는 연료가스가 노즐로 분출되기 전 유동경로에 버너공동을 설치하여 발생되는 구멍음에 의해 가진 되었을 때 비예혼합 부상 제트화염의 특징 변화를 관찰하였다. 실험을 위해 1/2” 자유 영역 마이크로 폰을 이용하여 측정하였고 낮은 주파수에서 공동이 장착되었을 때 음압레벨이 대폭 감소되는 효과를 얻을 수 있었으며 L/d를 비교했을 때 같은 레이놀즈 수에서 화염날림 속도가 증가되었다. 실험결과 부상화염의 소음감소와 안정성 개선효과를 확인 할 수 있었다. An experimental investigation of the noise characteristics of non-premixed lifted jet flames with a burner cavity has been performed. The noise is measured by 1/2”microphone at the flame base region. If there is a cavity under a burner nozzle, then flame noise was decreased significantly. Therefore it is ascertained that the cavity can be adopted with effective instruments as a method for noise reduction and flame stability.