트랙타 부착 대형이앙기 개발 및 재배적 실용성

박성태,장익주,정창화,김상열,김재현,문헌팔,양세준,김순철 한국국제농업개발학회 2002 韓國國際農業開發學會誌 Vol.14 No.3

쌀 생산비를 줄이고 대경지 규모화 영농에 적응할 수 있는 농기계 개발을 목적으로 연구개발한 대규모 경지적응 트랙터 부착 대형벼이앙기의 구성과 특징 및 개발시작기의 재배적 실용성 평가결과를 요약정리하면 다음과 같다. 1. 트랙터 부착 12조 대형벼이앙기는 크게 바퀴자국 제거로타리, 문짝형 정지판, 이앙장치부 등으로 구성되어 있다. 2. 트랙터 부착 12조 이앙기는 트랙터 동력을 이용하여 로타리, 정지 및 이앙작업이 동시에 이루어 질 수 있도록 개발하였다. 3. 바퀴자국을 없애는 날은 기존의 로타리 날을 교체하면 되도록 반달형 날로 제작하였다. 4. 이앙기는 이동시는 접을 수 있도록 설계 제작되어 대형화가 가능하므로 기존 6조 승용이앙기에 비하여 이앙작업 능력이 1.5배 이상이었다. 5. 트랙터 부착 대형벼이앙기는 트랙터와 같은 큰 동력원을 이용할 수 있으므로 측조시비기, 긴매트모 탑재 등 다양한 작업기 및 기능을 추가로 부착 가능하도록 설계되었다. 6. 트랙터 부착 대형벼이앙기는 어린모 및 중묘이앙시 결주율은 3.0∼4.3%로 기계이앙기 결주 허용범위 5% 미만이었다. 하지만 무경운 논에서는 이앙작업은 가능하나 부묘율이 다소 높은 점은 보완이 필요하다. To develop a labor saving rice cultivation technology, a new tractor attached rice transplanter has been developed for large scale farming and its field performance was evaluated. The rice transplanter consists of three major parts such as rotary for removing tractor tire furrow, door-shaped soil leveling plate and transplanting equipment. The rice transplanter is operated using the power of the tractor and performs rotary, harrow and seedling transplanting simultaneously. A half moon shaped rotary blade was found to be very efficient to remove tire furrow developed during seedling transplanting and the original rotary blade can be replaced easily with existed rotary blade. The seedling transplanting part of the transplanter was designed to fold into small size and the transplanting efficiency of the transplanter was found to be 1.5 times higher than that of the conventional riding type six row transplanter. Since the transplanter is operated through a strong power of the tractor, the additional attachment such as fertilizer application apparatus and long mat rice seedling carrier is possible. Based on the field performance of the transplanter, although the missing hill percentage showed roughly with 3.0∼4.3% for 10-day and 30-day old seedlings but the percentage is less than 5% which is maximum missing hill permit in the transplanting rice. Seedling transplanting in no-tillage field condition is acceptable but floating seedling percentage is still high and thus further technology improvement for minimizing floating seedling percontage is needed.

건축설계 교육을 위한 하이퍼미디어 지원 지능형 교습시스템(ITS)의 적용방법에 관한 연구

박익수,신태양,정성구 호남대학교산업기술연구소 1997 산업기술연구논문집 Vol.4 No.-

본 연구의 최종목적은 하이퍼미디어 기법을 이용하여 건축학과 학생들의 설계교육에 필요한 제이론과 실습과정을 학습할 수 있도록 하이퍼미디어 지원 지능형 교습시스템(ITS)을 개발하는 것이다. 본 논문은 이를 위한 기초단계로서 먼저 건축설계 교육에 있어서 이론적 체계화 하이퍼미디어 지원 교습시스템에 적합한 영역구조를 구상해 보았다. 또한 적용방법의 기술적 환경으로서 CAI와 하이퍼텍스트의 개념과 구성 및 역할을 살펴보았으며, 하이퍼텍스트 개념을 적용한 원형모델을 구축하여 건축설계 교육을 위한 ITS 개발의 방법론적 형태를 고찰하였다. 앞으로 건축설계교육을 위한 ITS의 개발을 위해서는 타당성 검증을 통한 체계적인 건축설계교육안의 개발과 이에 적절한 ITS 프로그램 개발이 연구되어야 할 것으로 본다. The purpose of the study was to develope ITS for architectural design education by applying hypertext concept. For the purposes, this paper was the first step for applying architectural design education, dealed with the applicative method. The researchers trided to idealize the situable domain of architectural design education. Then, the researchers studied the concept of CAI and the composition of hypertext, moreover studied the applicative method for ITS development and built a prototype model to apply hypertext concept for architectural design education. The research is needed the development of the systamatic education model and the proper ITS program through a inspection of the propriety.

全南 珍島의 淡水漁類

宋泰坤,朴炅洋,李完玉,金益秀 木浦大學校沿岸生物硏究所 1987 沿岸生物硏究 Vol.4 No.1

1987년 6월과 8월 2회에 걸쳐 珍島內의 7개 調査地点에서 淡水魚類의 분포, 生態 및 形態등을 조사하였다. 총 採集個體數는 2,753個體로 同定 결과는 9科 24屬 30種으로 밝혀졌으며 Pseudorasbora parva, Hemiculter eigenmanni, Abottina rivularis, Aphyocypris chinensis, Acanthorhodeus gracilis, Misgurnus mizolepis 등 6種의 1次 淡水魚와 Trachydermus faciatus, Tridentiger obscurus, T. trigonocephalus, Acanthogobius elongata, A. hasta, A. lactipes, A. flavimanus, Acentrogobius pflaumi, Pseudogobius masago, Mugilogobius abei, Chaenogobius annularis, C. mororanus, Periophthalmus cantonensis, Fugu niphobles 등14종 2次 또는 周綠性 淡水魚가 珍島에서 처음으로 그 분포가 확인되었다. 본 지역에서 採集된 1차 담수어 중 Abottina rivularis, Acanthorhodeus gracilis는 지금까지 어느 島嶼地方에서도 分布가 확인된 적이 없는 種이며, Cobitis longicorpus, A. gracilis는 韓國特産種으로 그중에 C. longicorpus는 珍島가 육지로부터 분리되기 전에 分布되었던 種으로 그리고 A.gracilis는 2次的인 이동에 의해 분포된 種으로 생각된다. 쌍계천 상류지역인 st.1(쌍계천계곡)과 st.3(창포교 일대)에서는 섬의 상류ㅣ지역의 전형적인 특징종인 M.oxycephalus, O. latipes가 st.4(송정저수지)와 st.7(둔전저수지)에서는 혼탁한 수질상태에서 주로 서식하는 H.eigenmanni, P.parva, C.auratus, A.rivularis 등이, st.6(금갑리)와 st.7(벽파리)에서는 汽水域에서 주로 서식하는 망둥어科 어류들이 서식하고 있는 특징을 보였다. 우점종인 M.oxycephalus와 H.eigenmanni의 全長組成과 分布上 特異한 種인A.gracilis, A.rivularis, C.longicorpus의 生態와 측정치 등을 밝혔다. Distributional, morphological and ecological characters of the freshwater fishes were investigated at the seven stations in Jin-do on June and August, 1987. In this survey, 9 families, 24 enera and 30 species (totally 2753 individuals) were collected and indentified. Among them, Pseudorasbora parva, Hemiculter eigenmanni, Abottina rivularis, Aphyocypris chinensis, Acanthorodeus gracilis, Misgrurnus nizolepis were primary freshwater fishes, and Trachydermus fasciatus, Tridentiger obscurus, T. trigonocephalus, Acanthogobius elongata, A. hasta, A. lactipes, A. flavimanus, Acentrogobius pflaumi, Pseudogobius masago, Mugilogobius abei, Chaenogobius annularis, C. mororanus, Periphthalmus cantonensis, Fugu niphobles were pheripheral fishes. It was remarded in the view point of zoogeography of island freshwater fish of Korea that A. rivularis and A. gracilis were observed in the present studied areas for the first time. Two endemic species of C. longicorpus and A. gracilis were found in the present studied area and the former was belived to be the originally distributed species, however the latter might be considered secondary distributed species originated from elsewhere. The abundant species of this studied area were M. oxycephalus, O. latipes at st.1 and st.3, and H.eigenmanni, P. parva, C. auratus, A. rivularis at st. 4 and st. 7 and the gobiid fishes were at st.5 and st.6. The total length of M. oxycephalus and H. eigenmanni, the dominant species of present studied area, were measured and analyzed. Morphological and ecological characters of A. rivularis, A. gracilis and C. longicorpus which were the characteristic species of the distribution were compared with those species reported previously by others.

알코올 금단 발작 환자에서 진전 섬망 예방에 대한 Nimodipine과 Chlordiazepoxide의 효과 비교

정두신,양광익,이보람,방차옥,이태경,성기범,안무영,박형국 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Background & objectives : An increase of calcium influx during alcohol withdrawal state may contribute to neuronal hyperexitability, which cause delirium tremens(DT). Some investigators have found calcium channel blockers effects in prevention of DT in experimental animals. Therefore we evaluated the preventive effects of calcium channel blocker(nimodipine) and benzodiazepine(chlordiazepoxide) on the development of DT in alcohol withdrawal seizure(AWS) patients. Method : A total 59 patients with AWS were divided into three groups according to the management nimodipine-treated, chlordiazepoxide-treated, and control(no specific medication) groups. We compared the incidence rates of DT in the three groups. Results : Total incidence rate of DT was 30.5%(18 of 59 patients). There were 6 DTs of 18 patients(33.5%) in nimodipine-treated group, 4 of 21 patients(22.5%) in chlordiazpoxide-treated group, and 8 of 20 patients(44.0%) in control. Conclusion : The control group(44.0%) showed the highest incidence rate of DT. And nimodipine-treated(33.5%) and chlordiazepoxide-treated group(22.5%) were followed. However, this result failed to demonstrated statistically significant differences due to small numbers size.

다른 국소 신경학적 측위 징후 없이 발생한 전실어증 1예

송운욱,정두신,양광익,이태경,박형국,안무영 대한노인병학회 2001 대한노인병학회지 Vol.5 No.3

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.

미분탄 순산소 버너의 화염 안정성 파악을 위한 실험적 연구

최종균(Chong-Gun Choi),나익환(Ik-Hwan Na),채태영(Tae Young Chae),류태우(Tae-U Yu),양원(Won Yang),강태석(Tae Seok Kang),김태형(Tae Hyung Kim),서상일(Sangil Seo),류승관(Seung Kwan Ryu) 한국연소학회 2009 KOSCOSYMPOSIUM논문집 Vol.- No.39

Oxy-coal combustion is one of the key technologies for CO2 capture in coal power plants. In this study, flame stability of an oxy-puverized coal flame was investigated in two burners: a 300 ㎾ pulverized coal burner in KITECH and a 1 ㎿MW pulverized coal burner in KEPRI. Flame attachment characteristics were observed visually for air and oxy-fuel conditions, and effect of various ratios of primary and secondary oxidants was also investigated. We found that the operating conditions of oxy-PC flame should be determined more carefully than those of air-PC flame, observing characteristics of the flame attachment in various conditions. Based on the information, stable flame could be achieved for various oxygen concentrations in the oxdizer stream. However, more investigation should be performed for design of a real-scale oxy-PC burner.

Fournier's Gangrene 15례

박태호,김상익,박양일 大韓泌尿器科學會 1999 Korean Journal of Urology Vol.40 No.12

Encoded Executable File Detection Technique via Executable File Header Analysis

Yang-seo Choi,Ik-kyun Kim,Jin-tae Oh,Jae-cheol Ryou 보안공학연구지원센터 2009 International Journal of Hybrid Information Techno Vol.2 No.2

Recently, the attack trends have been changed from fast and widespread malware propagation attacks to more sophisticated “targeted” attacks such as spy/adware, password stealers, ransom-ware, and botenets etc. and the attacks are tried via the automated malwares. In this situation, the malware is the most powerful weapon for the attackers. So, the attackers do not want their malwares to be reviled by anti-virus analyzer. In order to conceal their malware, malware programmers are getting utilize the anti reverse engineering techniques and code changing techniques such as the packing, encoding and encryption techniques. If the malware is packed or encrypted, then it is very difficult to analyze. Therefore, to prevent the harmful effects of malware and to generate signatures for malware detection, the packed and encrypted executable codes must initially be unpacked. The first step of unpacking is to detect the packed executable files. In this paper, a packed file detection technique based on a PE Header Analysis is proposed. In many cases, to pack and unpack the executable codes, PE files have unusual attributes in their PE headers. In this paper, these characteristics are utilized to detect the packed files. A Characteristic Vector (CV) that consists of eight elements is defined, and the Euclidean distance (ED) of the CV is calculated. The EDs of the packed files are calculated and represent the base threshold for the detection of packed files.

P285 : Gene expression profiling in melasma in Korean women

( Ik Jun Moon ),( Bo Young Chung ),( Tai Kyung Noh ),( Sang Hwa Yang ),( Il Hwan Kim ),( Mi Woo Lee ),( Tae Jin Yoon ),( Sung Eun Chang ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2

Background: There has been a paucity of data about the difference in the expression of the genes between the malasma lesional skin and normal adjacent one. Objectives: Our aim was to identify novel genes involved in the pathogenesis of melasma. Methods: We performed a microarray analysis and confirmed the results on the quantitative real-time polymerase chain reaction (qRT-PCR) in Korean women with melasma. Results: There were 334 genes which degree of expression showed a significant difference between the melasma lesional skin and normal adjacent one. Of these, five genes were confirmed on qRT-PCR. In the melasma lesional skin, there were down-regulation of genes involved in the PPAR signaling pathway and up-regulation of genes involved in neuronal component and the functions of stratum corneum barrier. Conclusion: This result suggests that the pathogenesis of melasma might be associated with novel genes involved in the above signaling pathway in Korean women