다수 객체 유지 기법을 이용한 항만 하역 장비 시뮬레이터 구현

구영철,김규환,김희연,이양민,이재기 東亞大學校附設 淸報技術硏究所 2006 情報技術硏究所論文誌 Vol.13 No.2

Nowadays there are going to be performed various researches about the operation and management of container terminals. By these researches, problems that arise in operation of container terminals are examined and solved. However the analysis of a port loading equipments actually wastes many time and much money. In these cases, the simulator is the most efficient means among related researches. Therefore this paper studied on a simulator for intelligent port handing equipments. The simulator divided loading courses into five steps and each step made in a module. The virtual port has many 3D objects and objects move each other independently. In this environment, the more 3D objects have, the more the simulator slows by dropping FPS. This problem is solved by the maintenance technique of many objects. Because It took many objects of a container box and guaranteed better FPS.

CdSe ; Cu 광전도 cell 제작

신영진,정태수,신현길,김택성,정철훈,이훈,신영신 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

오·폐수 처리시설용 다공질 석재 개발

신영수,이윤수,연규석,김철영 강원대학교 부설 석재복합신소재 제품연구센터 1999 석재연 논문집 Vol.4 No.-

이 연구는 오·폐수에 함유된 유기물을 제거하기 위하여 일반 시멘트 콘크리트에 비해 우수한 역학적 성질을 갖는 폴리머를 이용한 현무암 다공질 석재를 개발하고, 이에 대한 물리. 역학적 특성 및 정화성능을 실험적으로 구명한 것이다. 그 결과 다공질 소재이나 강도가 높고 적당한 단위체적중량을 갖기 때문에 설치 후 안정성을 확보할 수 있고, 정화성능은 나일론 여재에 비해 떨어지지 않으므로, 현장 설치 및 시공방법에 대한 연구가 이루어질 경우 실용화가 가능할 것으로 판단된다. The objectives of this study were to develop porous media for sewage treatment facility using basalt and to explore the possibility of replacing wall structures of sewage treatment plants improve the efficiency of sewage treatment. It was shown that the porous media developed by using basalt was not as efficient as existing media. However, it is expected that the polymer porous media can be economically applied to existing waste treatment plants and help improve sewage treatment efficiency.

태권도경기시 상대산소섭취량에 관한 연구

박철호,김우규,윤영학 東亞大學校附設스포츠科學硏究所 1998 스포츠科學硏究論文集 Vol.16 No.-

The purpose of this study was to investigate the distribution of VO₂max in Taekwondo competition. Subjects as a T group were seven well-trained Taekwondo players. Control group was composed of seven healthy male students who taking Taekwondo club in D university. With K4b²telemetry, VO₂max was determined for each subject by administering as treadmill exercise test(5% slope, start speed: 120m/min, increased 20m/min each 2min). Data were analyzed by ANOVA with post hoc-test The 0.05 level of significance was as critical level for the study The study has shown that covering all round in the Taekwondo competition, the Taekwondo player group was over 81% VO₂max 55.88%, 71~80% VO₂max 17.20%, below 70%, VO₂max 26.92%, and the control group was over 81% VO₂max 47.35%, 71~80% VO₂max 14.55%, below 70% VO₂max 38.10%. Putting the above-mentioned together, we can assume that in the Taekwondo competition, energy recruitment is anaerobic 55% or so, aerobic 45%. To develop performance of Taekwondo, it is fit that training have to be composed of 60% over 81% VO₂max at least. In the future, I think that it will be necessary to find how to classify the ratio of ATP-PC system which was brought about in the Teakwondo competition, that of lactate system and aerobic on the metabolism.

복숭아 光合成能力의 時基別 變動과 品種間 差異

李喆浩,文永培,金正洙 진주산업대학교 농업기술연구소 1991 農業技術硏究所報 Vol.4 No.-

복숭아 矮性台木 利用에 의한 樹形의 矮性化는 近年의 일이며 低樹高栽培의 實用化 趨勢에 副應하여 矮性台木으로서 有望視되는 Prunus Persica(壽星桃)로서 接首品種은 8年生된 白鳳과 白桃를 供試하여 6月15日, 7月15日, 8月15日과 9月15日에 걸쳐서 地上 3.5m, 2m, 50cm높이에 着生된 主枝의 側枝新梢를 採取하여 잎의 光合成 能力을 分析한 結果는 다음과 같다. 1. 白鳳의 部位別 新梢의 光合成 速度는 上部>中部>下部의 順으로 빠르게 進行되었고 照度가 增加할수록 光合成 速度도 빨라지는 傾向이였다. 2. 白桃의 部位別 新梢의 光合成 速度는 6月과 9月은 上部가, 7月은 下部가, 8月은 中間 部位가 각각 높았다. 3. 복숭아의 光合成 能力은 6月부터 8月까지는 점점 增加되다가 9月부터 떨어지며, 7월과 8월은 白鳳이, 8月과 9月은 白桃가 光合成 能力이 더 큰 것으로 나타났다. There is a growing tendency of dwarfing fruit trees. So in this study the 8-year-old peach varieties, "Baekbong" and "Baekdo", engrafted on Prunus persica, which is promising for dwarf stock, were tried as experimental materials. The shoot sampling was done on June 15, July 15, August 15, and September 15. And the parts or smpling were 3.5m, 2m and 50cm above earth surface, respectively. The shoots were sampled from the outer parts of main branches, and the photosynthetic ability of the shoot leaves was analyzed as follows: 1. The photosynthetic rate of Backbong's shoots was highest at the top main branches; second highest at the middle ; and lowest at the lower main branches. As the light intensity increased, the photosynthetic rate became higher. 2. The Photosynthetic rate was highest at the top main branches in June and September ; in July, it was highest at the lower part ; and in August, it was highest at the middle part. 3. The photosynthetic ability of peaches increased gradually from June till August, but it decreased after September. In July and August, the photosynthetic ability of Baekbong was higher ; in August and September, that of Baekdo was higher than that of Baekbong.

감자의 가공품질에 영향을 미치는 토양 및 기상조건

정진철,윤영호,장동칠,박천수,김숭열 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4

감자의 가공품질에 영향을 미치는 토양 및 기상조건을 구명하기 위하여 국내 주요 감자재배 지역 7곳에 1994년부터 1995년까지 2년에 걸쳐 각 지역별 2~3개 농가에서 감자를 재배하였으며, 각 재배포장의 토양시료 채취 및 괴경을 수확하였다. 지역별 감자 괴경의 가공품질 차이의 원인을 구명키 위하여 토양분석과 수확일 기준으로 수확전 70~10일 사이의 기상조건을 10일 간격으로 조사하였으며, 수확된 괴경의 가공품질과 이들 요인과의 상관계수를 계산하였다. 시험결과 감자의 가공품질은 토양의 화학적 특성 중에서 토양내 유기물함량과 높은 상관계수를 보였다. 또한 기상조건과 관련하여 수확전 30~10일 사이의 최저온도가 낮으며, 일조시간이 많을수록 감자의 가공품질이 향상되었다. 또한 이들 상관관계가 높은 요인들을 대상으로 가공품질 요인에 대한 다중회귀식을 구한 결과 괴경건물율과 칩색도는 비교적 높은 결정계수를 보여주었다. 따라서 우리나라에서 고품질의 가공원료 생산을 위한 적지 선정에 있어 토양중의 유기물 함량과 그 지역의 최저온도 및 일조시간 둥이 고려되어야 할 것으로 생각된다. In order to examine the difference in processing quality of potato tubers among localities, chemical properties of soils were analyzed and climatic conditions were investigated. potatoes (Solanum tuberosum L) were grow at seven localities of Korea during two years from 1994 to 1995. Soil samples and tubers were obtained from 2 to 3 commercial farms per locality with 10 days interval from 70 days before harvesting. As the result of that, higher correlation in processing quality was found with organic material content among soil conditions. On the climatic conditions, minimum temperature and sunshine hours during the period from 30 to 11 days before harvesting exhibited highly significant negative correlations with all quality parameters except reducing sugar content. Additionally, regression equations based on the observed level of these factors showed the relatively high coefficients of determination for dry matter content and chip color. To produce higher quality potatoes for processing, therefore, climatic conditions such as minimum temperature and sunshine hour and soil condition such as organic matter content have to be considered before the selection of areas or fields.

RFID를 이용한 u-Campus 기자재 관리 서비스 개발에 관한 연구

구영철,이양민,이재기 東亞大學校附設 情報技術硏究所 2005 情報技術硏究所論文誌 Vol.13 No.1

The advent of the era of ubiquitous computing is attempting to change toward u-Campus. u-Campus requires various ubiquitous computing and network technologies. In this paper, we propose a new facility management service that uses RFID system instead id bar code system. This system can provide the information of facilities by means of radio recognition in real-time, and can support the function of security by carrying in or carrying out management. Using the proposed service in this paper, we expect to able to reduce the manpower, the time, the cost as compared with the existing system.

日本語 身體語 慣用句에 관한 考察(上) : 胴體部를 中心으로

안영길 동의대학교 2005 인간과 문화 연구 Vol.- No.10

Machiavelli와 宗敎

朴永哲 동국대학교 대학원 1982 연구논집 Vol.12 No.

치과용 자성 어태치먼트 재료의 안정성 개선에 관한 연구 : II.질화티타늄 코팅이 치과용 자성재의 내식성에 미치는 영향 Ⅱ.Effect of TiN Coating on Corrosion Resistance of Dental Magnetic Materials

최한철,고영무,정재헌,신종연,김일선,최성욱,정효수 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.4

Dental magnetic materials have been applied to removable prosthetic appliances, maxillofacial prostheses, obturator and dental implant but they still have some problems such as low corrosion resistance in oral environments. To increase the corrosion resistance of dental magnetic materials, surfaces of Sm-Co and Nd-Fe-B based magnetic materials were plated with TiN and then electrochemical corrosion test were performed in 4 kinds of electrolyte solutions(0.9% NaCl. 1% lactic acid, 0.05% HCl and modified Fusayama's artificial saliva). From this study, corrosion behavior, amount of elements released, mean average surface roughness values and the changing of mean surface microhardness values were measured comparing with control group of non-sputtered plating magnetic materials. The results were as follows: 1. TiN layer coated on magnet grows into preferred direction with lamellar structure and its thickness is 3.0㎛. 2. Sm-Co base magnetic materials coated with TiN have good corrosion resistance in 1% lactic acid and their pitting corrosion can not be seen. 3. Nd-Fe-B base magnetic materials coated with TiN showed good tendency of corrosion resistance in 0.05% HCl solution. 4. The amount of elements released from both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were more significantly decreased than that of uncoated magnetic materials. 5. The mean surface roughness values of both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were smooth than that of uncoated magnetic materials after corrosion test. 6. The decreasing rate of microhardness of both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were lower than that of uncoated magnetic materials after corrosion test. 7. Dental magnetic materials coated with TiN produced various corrosion products such as TiO, TiO₂, Ti₂O₃on the surface and resulted in better corrosion resistance than uncoated magnetic materials. In conclusion, it is considered that the corrosion problem of dental magnetic materials could be solved to some extent by EB-PVD with TiN on the surface of dental magnetic materials.