도시간선가로의 공사중 교통류 특성분석과 적용성에 관한 연구

임채문,이주호,박영환,이영우 대구대학교 과학기술연구소 2001 科學技術硏究 Vol.8 No.1

Since almost roadway improvements are for the public convenient, negative effects by them are ignored. But now due to the increase of traffics demand and limitation of road supply, the positive management scheme and treatment plan on the constructions must be considered. The links operating interrupted flow are intend to yield the traffic between the out flow and inflow part effect zone of street section, we build the delay model using the time gap between under construction and not. And in the case of besides the traffic effect zone, that is street section's occupying construction. This work purpose on only setting up the capacity, delay models, and traffic effect zones as the basic study to find methods for minimizing the traffic delay work zones, and thus it is true that it is incorrPlete of the political, administrative reviews. In future there must be advanced the incomplete in this study, and groping for the various alternatives to minimize the traffic delay by the road occupying construction, with developing the various sets of detailed analyzing models, that is analysis on the street strength, crossroads geometrical forms of crossroads, public traffics, pedestrians, occupying types.

Doppler ultrasound를 이용한 교정적 치아 이동 시 치수 혈류량의 변화의 측정 : 예비실험

임경섭,배영민,차정열,유형석,황충주 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.6

교정적 치아 이동 시 지속되는 압력에 의해 혈류변화가 발생하게 되며, 이러한 변화양상에 있어서 선학들의 연구 방법 및 그 결과의 다양성이 존재하였다. 본 연구에서는 Doppler ultrasound를 이용하여, 교정치료 전과 교정치료 시작 3주, 6주 후 치수 혈류량의 연속적인 변화를 알아보고자 하였다. 만 15세 이상 환자 18명을 연구대상으로 Doppler ultrasound를 이용하여 상, 하악 6전치 중 경도의 총생(2 mm 미만)을 보이는 치아(총생측정: required space-available space)와 인접치아를 포함한 3개의 치아를 대상으로 치수 혈류량의 변화를 알아보았다. 연구결과 부위별(상, 하악), 치아별, 기간에 따른 치수 혈류량의 변화는 교정 치료 시작 전과 시작 후 3주, 6주 혈류량에 유의한 차이가 없었다. 또한 치수 생활력 상실의 내재적 위험성을 비교하고자 교정 치료 시작 전 치아별로 치수혈류량을 비교하였을 때, 상악에서는 측절치, 하악에서는 견치에서 통계학적으로 유의한 차이는 나타나지 않았지만, 모든 항목에서 적은 값을 나타냈다 (p > 0.05). 본 연구의 결과는 이후에 진행될 Doppler ultrasound의 치아이동유형, 환자의 연령을 고려한 세부적인 실험 시 방법론적인 기초 자료로서 뿐만 아니라, 교정치료 시 치수 생활력의 상실에 대한 참고 자료가 될 수 있을 것이다. Objective: This study was to change of pulp blood flow among maxillary and mandibular anterior tooth with mild crowding and adjacent teeth using Ultrasound Doppler graphy. Methods: The change of pulp blood flow was measured three times using Ultrasound Doppler graphy; before the attachment of brackets, after 3 week, and after 6 week. The sample consists of 15 year old eighteen patients. Results: Before the attachment of brackets, after 3 weeks, and after 6 weeks, there were no significant differences in the change of pulp blood flow in each part (maxilla and mandible) and each tooth according to period. In addition, to compare internal dangerousness of loss of the pulp vitality, when pulp blood flow is compared in each tooth before orthodontic treatment, there were no statistically significant differences in maxillary lateral incisor and mandibular canine but it showed low values in all measurement items (p > 0.05). Conclusions: Results of this study can be not only methodological preliminary data in further study such as tooth movement type of Ultrasound Doppler graphy and particular study considered the patient age, but also reference materials for the loss of pulp vitality in orthodontic treatment.

낙동강 상수원수의 오존처리 효과 : II. 회분식 오존처리에 의한 휘발성유기화합물 및 조류제거 효과 II. Removal of VOCs and Algae in Raw Water by Conducting Batch Test of Ozonation Experiments

임영식,이홍재,이도진,허종수,손보균,조주식 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12

This study was carried out to evaluate the pollutant removal efficiencies of the advanced drinking water treatment using ozonation process. For raw water, Nakdong River was used. By conducting batch test of ozonation efficiencies of the ozonation were 94 to 92%, respectively. Removal efficiencies of single VOC compound or mixed VOC compounds in the raw water were 80% to 90% by the ozonation with 2 mg/ℓ dosage and 10 minutes contact time. Removal efficiencies of ABS by the ozonation with 1 mg/ℓ, 3 mg/ℓ dosage and 20 minutes contact time were 83% to 96%, respectively. Almost 67% of chlorophyll-a at the concentration of 38.㎍/ℓ was removed by ozonation at ozone dosage of 1mg/ℓ for 20 min. considering the efficiency of ozone utilization and water treatment, the most effective ozonation could be obtained with high ozone dosage and short and short contact time.

소비자 문제에 대한 대응행동 : 여자대학생을 중심으로

임정빈,이영호,조미환,강은주 漢陽大學校 韓國生活科學硏究所 2000 韓國 生活 科學 硏究 Vol.- No.18

The purpose of this study was to provide with the basic research to aid to establish in the direction of consumer education, which investigate the actual condition of consumer complaining behavior according to consumer problems. Content analysis method was used and the sample 624 case was taken from report about experienced according to consumer problems by university of women. The major results are as follows: They have much more consumer complaining behavior, when they experience the problem about non-durable goods, and less experience them in case about durable goods. But they need to knowledge(information) about the durable goods and a way of settlement when they experience problems after service and structural problems.

연속식 오존처리공정을 이용한 낙동강 상수원수의 정수처리 효과

임영성,강관호,이홍재,서동철,박문수,허종수,조주식 한국환경농학회 2002 한국환경농학회지 Vol.21 No.3

낙동강 상수원수를 대상으로 연속적 오존처리에서 오존주업농도에 따른 유기물 분해 특성을 조사하기 위하여 오존처리에 의한 DOC성분변화, UV254/DOC의 변화와 소비오존에 따른 DOC 제거효율을 조사한 결과는 다음과 같다. 유입원수의 수질변화에 따라 다소 차이는 있었으나 전반적으로 오존주입농도가 증가할수록 DOC 처리효율도 증가되었다. 오존처리에 따른 DOC 성분변화는 전오존을 3 mg/L농도로 처리시 TDOC, ADOC, A&BDOC 및 NRDOC는 각각0.6, 0.2, 0.1 및 1.0 mg/L 정도 오존처리에 의하여 감소되었으나 BDOC는 0.8 mg/L 증가하였다. UV254/DOC의 분율은 오존주입농도를 1, 3 및 5 mg/L 처리하였을 때 전오존의 경우는 각각 0.048, 0.044 및 0.037 이였고, 후오존의 경우는 각각 0.018, 0.015 및 0.012로 나타나 오존주입농도가 증가할수록 감소하는 경향을 보였다. 초기 DOC mg당 소비되는 오존량에 대한 DOC 제거율은 전오존과 후오존처리의 초기 DOC에 대한 소비오존량이 각각 약 1.5와 2.3일 때 각자 25%와 32%로서 최대의 DOC 처리효율을 나타내었다. 낙동강 상수원수에 전오존을 처리할 경우 오존주입량은 초기 DOC mg당 소비된 오존이 1.5 mg 이내의 농도가 되도록 주입하고, 후오존은 유입수인 모래여과수의 초기 DOC mg당 소비된 오존이 2.3 mg이내의 농도가 되도록 조절하여 주입하면 적당할 것으로 생각되었다. This study was carried out to evaluate the pollutant removal efficiencies of the advanced drinking water treatment using ozonation process. For raw water. Nakdong River was used. By conducting continuous ozonation experiments, the following results were obtained. Efficiency of water treatment was enhanced with increase in ozone dosage. When ozone dosage of 3 mg/L was used, preozonation of raw water reduced TDOC, ADOC, A&BDOC and NRDOC as much as 0.6 mg/L, 0.2 mg/L, 0.1 mg/L and 1.0 mg/L, respectively. On the other hand, content of BDOC Increased at the level of 0.8 mg/L. Ratio of UV254 absorbance to DOC content by the preozonation with 1, 3 and 5 mg/L dosage were 0.048, 0.044 and 0.037, respectively. In case of postozonation, it were 0.018, 0.015 and 0.012, respectively. When the ratios of consumpted ozone content to 1 mg of initial DOC were 1.5 and 2.3 in preozonation and postozonation treatment, respectively, the highest DOC removal rates of 25% and 32% were obtained by the continuous ozonation.

저전력 직접 가변 안테나 변조를 위한 DGS 가변 임피던스 선로에 관한 연구

임재봉,박준석,김영주 국민대학교 생산기술연구소 2004 공학기술논문집 Vol.27 No.-

In this paper, we proposed a variable-impedance microstrip circuit using DGS (Defected Ground Structure) and control device. The proposed variable-impedance transmission line with a simple planar antenna can change the resonant frequency and the input impedance of antenna to achieve the DAM (Direct Antenna Modulation). As an application example of the variable-impedance microstrip, we have implemented the ASK modulation of RF signal for the low-power consumption RFID applications. The experimental results show that a patch antenna with a resonant frequency of 2.45 GHz and a 30 MHz bandwidth can transmit a 1 Mbps digital modulated signal with the ultra low-power consumption.

도로 공사중 교통류분석에 관한 연구 - 도시가로를 중심으로 -

임채문,이주호,이영우 대구대학교 과학기술연구소 1997 科學技術硏究 Vol.4 No.1

Recently, owing to the emergence of the importance of road maintenance and management, the maintenance and repair of itself is frequent and also the public facilities communication cable construction and water supply and sewerage construction is frequent too. So road taking work or construction is on the increase. To solve these problems, many fundamental researches are needed to establish more reasonable and concrete transfortation planning during road construction. So in this study, we establish a delay model which is applicable to urban road by separating the intersection construction and street construction of Taegu City urban road as a basic document about road construction.

동면동물 혈액상의 생리적 변화에 관한 연구

임영민,한현주,박래백,김효성,박경수,노영복 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

활동기와 동면기에 동면동물인 살모사에 있어서 혈액내 가스함량과 부분압인 TCO_2, P0_2, PO_2 및 pH와 일반적인 혈액상인 적혈구수, 백혈구수, 혈색소, Hematocrit 등의 변화를 조사한바 다음과 같이 요약하였다. 1. 총이산화탄소량 (TCO_2), 이산화탄소부분압P(C0_2), 산소압(PO_2)과 pH는 활동기보다 동면기 에 증가하였다. 2. 적혈구수, 혈색소, 적혈구백분율(Hematocrit)은 활동기보다 동면기에 약간 증가하는 경향이었다. 3. 백혈구수는 활동기보다 동면기에 뚜렷한 감소를 보였다. 환경온도와 체온의 저하로 인한 혈액내의 변화는 인정할 수 있었다. This thesis were performed in order to study physiological changes of vipers in the active phase and hibernation phase, Physiological changes were blood gas volume and pressure (TCO_2, PCO_2, PO_2), blood pH and blood pictures (RBC, WBC, Hemoglobin, Hematocrit) The obtained results were summalize as follows; 1. TCO_2, PCO_2, PO_2 and pH increased considerably in hibernation phase, compared with active phase. 2. RBC, Hemoglobin and Hematocrit increased slightly in hibernation phase, compared with active phase. 3. WBC, decreased considerably in hibernation phase, compared with active phase 4. The decrease of environmental and body temperature showed change of blood components.

1999년에 발생한 기상재해 유형별 벼 수량반응조사 연구

주영철,임갑준,한상욱,박중수,조영철,김순재 한국농림기상학회 2000 한국농림기상학회지 Vol.2 No.1

The objectives of this study were to investigate weather conditions which induced discolored grains and viviparous germination, and to evaluate yield responses following viviparous germination during mid- and late- ripening stage, the submergence during reproductive growth stage, and lodging in the yellow ripe stage. Weather conditions which caused glume discoloration at heading stage were 21.3-26.4℃ in average temperature, 75.2-98.4% in relative humidity, 19.3 in transpiration coefficient and 10.8-13.8 m/sec. in wind speed. Yield reduction was 26-27% and 10∼17%, respectively, when the glume discoloration rates were 63.2-65.7% and 38.3-45.2%, obviously due to the decrease in percent of fertile grain and ripening ratio. Weather conditions during continuous rain for 7 days were 96% in relative humidity, 18.9℃ in average temperature, 21.9℃ in maximum temperature, and 16.8℃ in minimum temperature, causing the most viviparous germination in Juanbyeo(45.5%), followed by Jinbubyeo(14.5%), Bongkwangbyeo(14.2%), and Obongbyeo(12.6%). Lateral tillers started to occur when the submergence at the depth of 1.5-2 m lasted one day during the reproductive growth stage. The submergence for 2-3 days at 3-4 m of water depth induced 269-571 lateral tillers/㎡, supporting 32-52% of the total yield. The rice yield in the paddy fields which were left under the lodging conditions until harvesting was not different compared to that of the paddy fields which were kept upright by tieing them together after lodging, but perfect grain ratio decreased about 9.1% in the transplanting culture and 12.5% in the direct seeding culture on dry paddy field because of the increase in immature grains.

狀態空間 模型을 利用한 道路交通量 推定에 關한 硏究

임채문,박영환,이주호 대구대학교 과학기술연구소 2000 科學技術硏究 Vol.7 No.1

The purpose of this study is to forecasting traffic volume of an express way and a national road through a model of state space as a time series model of multiple variables : they have a function of link with Taegu-Metropolitan as a commercial city and other cities. As a result of such study, I could construct a forecasting model about road traffic volume of the future. There is an efficient construction as a time series one in the model. I examined the significance of data for this study : the result was that the data served for a forecasting model about road traffic of the future by state space model. I also constructed a forecasting model about road traffic volume of the future by ARIMA model of single variable in order to analyze comparatively with others, and I compared the model with a model of state space. As a result of such study, I think that a forecasting model of traffic volume by state space model is able to consider social and economic alteration : the model as a forecasting model for traffic volume of the future is able to apply to a complex society.