Selenium 공급방법이 수경재배 토마토의 생장과 Se 흡수에 미치는 영향

이철규(Cheol-Kyu Lee),조경철(Kyung-Cheol Cho),이정현(Jeong-Hyun Lee),조자용(Ja-Yong Cho),서범석(Beom-Seok Seo),양원모(Won-Mo Yang) (사)한국생물환경조절학회 2005 생물환경조절학회지 Vol.14 No.4

토마토 ‘모모타로’를 공시하여 셀레늄 10㎎ㆍL?¹의 관주 및 엽면시비 등의 단용 및 혼용처리가 수경재배 토마토의 생육 및 과실 내 셀레늄 축적 함량에 미치는 영향을 구명하였다. 토마토 종자를 50공 트레이에 파종하여 70일 동안 육묘한 후 유묘를 코코피트 슬라이브를 이용한 수경재배 시스템에 정식하였다. 양액은 일본원예시험장 배양액 표준처방으로 조성하였으며, pH 5.8~6.2와 EC 2.3 ㎎ㆍL?¹ 등으로 조절하여 공급하였다. 셀레늄은 무기태 SeO₂와 sugar fatty acid ester에 킬레이트화 한 유기태 셀레늄을 10 ㎎ㆍL?¹으로 조성하여 관주, 엽면시비, 관주와 엽면시비를 병행하여 처리하였다. 초장, 엽수, 엽면적 및 엽록소 등의 토마토 생장반응은 셀레늄의 엽면시비, 그리고 엽면시비와 관주를 병행한 처리구에서 현저히 증가하였다. 과실 내 셀레늄 축적 함량은 킬레이트화 한 유기태 셀레늄을 엽면시비와 관주를 병행하여 처리한 경우에 0.302 ㎎ㆍL?¹으로 가장 높았다. 무기태와 유기태 셀레늄의 엽면시비와 관주 등의 단용 처리 보다는 혼용 처리가 전반적인 과실 생장과 체내 셀레늄 축적에 효과적이었다. 무기태 설레늄(SeO₂) 보다는 sugar fatty acid ester에 킬레이트화한 유기태 셀레늄 처리가 셀레늄을 함유한 기능성 토마토의 수경재배에 더 효과적이었다. This study was conducted to clarify the effects of supplying methods of selenium on the growth and Se uptake of hydroponically grown tomato plants. Tomato seeds (Lycopersicum esculentum Mill. cv. Momotaro T-93, Daki Seed Co.) were sown in plug tray with fifty holes, and raised for sixty days. Tomato seedlings transplanted to coco fiber slabs were supplied with the nutrient solutions adjusted to EC 2.3 dSㆍm?¹ and pH 5.8~6.2 recommended by the Japanese Horticultural Experiment Station. Selenium forms used were inorganic SeO₂ (here in after referred to Se) and organic selenium chelated with sugar fatty acid ester (here in after referred to chelated-Se). 10 ppm selenium solutions were treated to tomato plants with foliar applications, drenching, and foliar application plus drenching. Growth characteristics in terms of plant height, number of leaves, leaf area and chlorophyll content were significantly increased in the plot of foliar application of Se, and in the plot of foliar application plus drenching of chelated-Se than other plots, respectively. Transported contents of selenium into the tomato fruits were highest as 0.302 ppm in the plot of foliar application plus drenching of chelated-Se. Also, it had tended to be higher in the plot of foliar application plus drenching than in the plots of foliar application or drenching in both of Se and chelated-Se. Foliar application and drenching of organic chelated-Se were effective to produce the functional tomato fruits.

e-Business를 위한 정보기술 평가모델에 관한 연구

서창갑,황종호,정기호,이석용 동명정보대학교 2002 사이버 비지니스 Vol.1 No.-

최근 몇 년 사이에 인터넷(Internet) 공간상에서 거래되는 선박 매매 사이트의 출현으로 인하여 사이버해운거래 시장이 형성되고 있다. 인터넷은 다양한 정보제공자에 의해 광범위한 분야의 정보를 멀티미디어 형태로 전달한다는 점에서 매우 각광을 받고 있지만 이용자의 증가로 무수한 정보들이 걸러지지 못한 채로 Web상에 존재하게 되었다. 따라서, 이러한 정보들을 체계적으로 정리하고, 이용자들의 구미에 맞게 가공된 정보의 필요성이 대두되게 되었다. 이러한 문제를 해결하기 위해서 이용자가 원하는 것을 스스로 인지하고 판단하여 요구사항을 해결해주는 "지능적 대리인" 또는 "지능을 가진 도우미"라고 일컫는 지능형 에이전트(Intelligent Agent)의 필요성이 대두되었다. 지능형 에이전트는 그 다양한 기능으로 인하여 인터넷에서 매우 중요한 요소로 자리잡게 되었다. 우리나라를 비롯해서 선진 해운국에서는 선박매매사이트를 개설하여 사이버 공간상에서 거래를 수행하고 있지만, 사이트별 등록된 선박의 수가 많지 않을 뿐 아니라 거래대상 선박의 표현 방식도 사이트별 국가별로 매우 달라, 선박 매매 시 충분한 매매 대상 선박정보를 획득하기 어려운 실정이다. 본 연구는 선박매매 시 고객에게 매매 선박정보를 제공해주는 선박매매용 에이전트 설계를 목표로 하고 있다. Bargainfinder, Bargainboat, Shopboat, Price watch 등 쇼핑몰을 대상으로하는 비교쇼핑에이전트는 상용화되어 운영되고 있지만 선박매매용 에이전트에 관한 연구는 시도되지 않고 있다. 본 연구는 선박매매용 에이전트를 개발하기 위한 설계연구로서 다음 사항에 대한 연구가 시도되었다. (a) 구매 선박에 대한 요구? 표현 방법 (b) 관련 선박의 표현, 등록 및 색인방법 (c) 공급 선박의 분류와 표현 방법 (d) 에이전트의 정보 수집을 위한 메시지 표현방법 (e) 수집된 선박정보의 데이터베이스 (f) 요구 선박을 찾아주는 정보제공 서비스가 요구된다. The IT for e-Business performance is composed of the financial performance of a corporation, the effectiveness of IT itself, the suitability of processes and so forth. For the last 30 years many studies about IT evaluation have been conducted, most cases have been measured inclusively in terms of technology level, information level, functional level and management level. However these management oriented evaluation models are too narrow to evaluate IT for 3-Business. The IT in a corporation needs to be measured broadly. Corporate performance of IT needs to use models in the past and concentrate on environmental characteristics. This study intends to find more practical IT evaluation models for e-Business. We found two standardized IT process evaluation models, CMM and SPICE which are analyzed in terms of process in an organization. Afterwards this study will suggest an appropriate conceptual model for evaluating IT for e-Business.

제주도 연안 갈치 채낚기 어구의 생력화 : 1. 연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양자원연구소연구보고 Vol.24 No.-

The authors carried out a model experiment of continuous hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with hairtail hand line in the coast of Jeju The results are as follow : 1. The continuous main line was rotated smoothly by driving roller. 2. The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.

항균성 펩타이드인 Mastoparan B의 살조효과

서정길,김찬희,배윤정,문호성,김근용,박희연,윤호동,김창훈,변대석,홍용기,박남규 한국어병학회 2003 한국어병학회지 Vol.16 No.3

Mastoparan B (MPB)는 벌독으로부터 정제된 양친매성α-helical 구조를 취하면서 14개의 아미노산 잔기로 구성된 염기성 항균성 펩타이드로서 여러 가지 생물막과 작용한다. 본 연구에서는 우리 나라 연안의 적조 (HABs, harmful algal blooms)를 일으키는 4종의 적조생물 (Alexandrium tamarense, Chattonella catenatum)에 대한 MPB의 살조효과를 조사하였다. MPB의 4종의 적조생물에 대한 살조효과는 31.3㎍/㎖에서 세포의 lysis또는 ecdysis와 같은 형태로 현미경으로 관찰할 수 있었다. 또한 MPB는 C. marina 및 C. polykridorides에 대해서 A. tamarense와 G. catenatum보다 더욱 강한 살조효과를 나타내었다. 이러한 MPB의 HABs에 대한 살조효과연구는 새로운 살조물질을 개발하기 위한 자료가 될 것으로 생각된다. Mastoparan B (MPB), an antimicrobial cationic peptide isolated from the venom of the hornet Vespa basalis, is a basic amphipathic a-helical peptide composed of fourteen amino acid residues. In this study, we have investigated the algicidal effect of MPB against hatmful algae blooms (HABs) casative Alexandrium tamarense, Chattonella marina, Cochlodinium polykrikoides and Gymnodinium catenatum. The algicidal effect of MPB showed in the concentration of 31.3 ㎍/㎖ to 500 ㎍/㎖ against 4 HAB species and observed cell lysis or cell ecdysis by microscopy. MPB reacted more sensitive to C. marina and C.polykrikoides than A. tamarense and G. catenatum. The algicidal study of MPB against HABs will provides much insight into development of new algicidal substances.

제주도 연안 갈치 채낚기 어구의 생력화 : 1.연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양과환경연구소 연구논문집 Vol.24 No.-

The authors carried out a model experiment of continuoius hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with haritail hand line in the coast of Jeju. The results are as follow ; 1.The continuous main line was rotated smoothly by driving roller. 2.The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.

진성 복압성 요실금 환자에서 복강경하 방광경부현수술의 유용성: 타술식과의 비교 연구

김용태,엄민식,이석영,신관희,서정원,윤석중,이상철,김원재 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2

연구목적: 진성 복압성 요실금의 치료법으로서 복강경을 이용한 Burch 수술을 타수술법과 비교하여 그 유용성을 알아보고자 하였다. 대상 및 방법: 진성 복압성 요실금을 주소로 본원 비뇨기과에서 수술을 시행받은 44명의 환자를 수술법별로 분류하여 수술법에 따른 성공률, 수술 시간, 입원 기간 및 합병증의 빈도를 비교 분석 하였다. 결과: 전체 환자에서 수술 성공률은 86.4% 였으며 이들 중 복강경을 이용한 Burch 수술군에서는 성공률이 100% 이었다. 복강경을 이용한 Burch 수술군은 타수술군에 비하여 입원 기간이 짧았다. 복강경을 이용한 Burch 수술군은 합병증이 매우 경미하였으며 전체 환자의 31.8%에서 단기간의 배뇨곤란을 호소하였으나 장기간의 배뇨곤란은 없었으며 슬링 수술군에서는 3례(16.7%)에서 심한 절박성 요실금을 호소하였다. 결론: 복강경을 이용한 Burch 수술은 높은 치료 성공률과 낮은 합병증의 빈도를 나타내어 진성 복압성 요실금의 치료에서 매우 우수한 수술법으로 사료된다. Purpose: We performed this study to investigate the usefulness of laparoscopic Burch colposuspension as a treatment of genuine stress incontinence compare to other anti-incontinence operation. Materials and Methods : We analyzed success rate, operation time, admission day, and complication rate of various anti-incontinence operations in 44 genuine stress incontinence patients who have been received operation in our hospital. Results : Overall success rate was 86.4%, but laparoscopic Burch coposuspension showed 100% success rate. Laparoscopic Burch colposuspension required shorter admission day compared to other anti-incontinence oparations. Complication rate was lower in laparoscopic Burch colposuspension group. Short-term voiding problems were identified in 31.8% of total patients but 3 patients(16.7%) who have received sling operation complained severe urge incontinence. Conclusion : Laparoscopic Burch colposuspension is considered as an effective surgical method for genuine stress incontinence due to high success rate and low complication rate.

국내 해양레저의 발전방안에 대한 연구

김용재,노석규,서국웅 釜山大學校 附設 體育科學硏究所 1998 體育科學硏究所 論文集 Vol.14 No.-

Korean avoid living area on beach side because forigin enermy came in and disturb us historically. We are need marine leisure center. If we close frindship of marina leisure sports and take a pleasure. What was located condition for marine center. 1. Convenient traffic of metropolis which was scenery. 2. Far from commercial port for sailing. 3. Beautiful nature a background. 4. Calm sea and climate. 5. Meteorological observatory and sailing signal equipment. Safety was follow a rule, sailing lane, information of sea condition. Most of all was keep personal safety mind and self responsibility. All drive boat should be take drive licence. This drive licence system was not setting in our contury until now. We emphasis strongly this driving licence system that was control by authorization. Marine leisure sports was a good section for training a mind of human brave. And so we try setting marine civilization and culture for comfortable leisure sports.

반연속폭포 HMM을 이용한 한국어 지역명 인식

조병서,최갑석,이용동 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

This paper studies on the Korean word recognition using the semi-continuous hidden Markov model(SCHMM) which approximate the discrete hidden Markov model(DHMM) to the continuous hidden Markov models(CHMM). In generating of this model, the output probability of an input vector, which is assumed to the mixture continuous Gaussian distribution, is linearly combined with the probability function of each input vector and the symbol output of codewords for approximating to the CHMM, In the word recognition, this model recognized words more correctly than the DHMM because of reducing a quantized distortion due to the DHMM. In order to evaluate this model, comparing experiments between DHMM and SCHMM are carried out for DDD area names. Also, input vector takes the traditional LPC or the LPC cepstrum using euclidean distance. As a result, recognition rate of the SCHMM using the LPC cepstrum is improved.

이중에너지 방사선 흡수계측법을 이용한 성인 남녀의 장골 및 경골의 골밀도에 관한 연구

조용석,김경원,이경호,박현진,서상수,오상엽 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.3

Purpose : The aim of this study was to evaluate the bone mineral density of iliac and tibial bone which are frequently selected as autogenic bone graft donor sites, and to evaluate the efficiency of this method as a guideline for the selection of bone graft donor site. Materials and Methods : In this study 61 male and 70 female volunteers at Chungbuk National University Hospital were involved between Jan. 1998 to Sept. 1999. We measured bone mineral density of the iliac and the tibial bone using dual energy X-ray absorptiometry. We evaluated the data using the SAS system for Windows and bone mineral density of the lumbar was used for control. Results : Age showed the highest correlation in correlation matrix between physical and bone variables. Height and weight showed lower correlation of linear increment. In man, the change of bone density according to age demonstrated linear decrease irrespective of the lumbar, ilium, and tibia. In woman, the change of bone density according to age showed cubic form, which increased in the third and forth decade. So it had a peak bone mass on about 35 year-old, thereafter, the change of bone density slowly decreased until 50 year-old, but it rapidly decreased after 50 year-old and it slowly decreased again after 65 year-old. Both in all subjects and subject with osteoporosis, the change of bone mineral density according to age showed statistically significant decrease in lumbar and tibia, but ilium was irrespective. Conclusion : In patients of aged or with osteoporosis, ilium demonstrated less tendency of decrease in bone mineral density than tibla. So this preliminary study suggested that ilium seemed better donor site for autogenic bone graft than tibia.

역도선수의 경기전 경쟁상태불안 요인이 경기력에 미치는 영향

정용각,서명석 정보과학연구소부산외국어대학교 2002 情報科學論集 Vol.4 No.-

The purpose of this study is to investigate on influence of competitive state anxiety on the game effect of weight lifter. Especially this study shows how confidence, cognitive state anxiety and physical state anxiety have psychological influence on the game effect of weight lifter. The 88 subjects, ranging from 13 to 23 years of age, were to a weight lifter of middle school, high school, university, and an adult who attend all-Korea spring tournament chosen for the analysis. Eighty eight completed questionnaires were analyzed, applying Cornbach's Alpha, Factor Analysis, Multiple Regression, and MANOVA. An IBM personal computer with SPSS was used for the calculations. A significant level of p < .05 was used for all the statistical test. The results of this study are as follows: First, an competitive state anxiety of weight lifter before game has showed a meaningful difference under the present level. Superior athletes showed higher perceived confidence and physical state anxiety factors than inferior athletes, while inferior athletes showed cognitive state anxiety than superior athletes. Second, physical state anxiety factors have strong influence on the game effect of weight lifter, and perceived state confidence factors were significantly related to the game effect of weight lifter.