• Title/Summary/Keyword: Fog

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General Pharmacological Study of CJ-11828, an Amlodipine adipate

  • Choi, Jae-Mook;Lee, Sung-Hak;Kim, Il-Hwan;Park, Jie-Eun;Park, Choong-Sil;Youn, Yong-Sik;Lim, Dong-Kwon;Cho, Sung-Hwan;Chang, Jun-Hwan;Do, Sun-Hee;Kim, Eun-Joo;Kim, Young-Hoon
    • Biomolecules & Therapeutics
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    • v.12 no.2
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    • pp.114-121
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    • 2004
  • This study was undertaken to evaluate the general pharmacological properties of CJ-11828, an amlodipine adipate, in experimental animals and in vitro system. CJ-11828 had no effects on general behavior, motor coordination, writhing syndromes, pentetrazol-induced chemoshock and electric shock in mice at dose levels of 3,10, anti 30 mg/kg, po. But there were decrease of body temperature, prolongation of sleeping time, and inhibition of intestinal activity in mice treated with CJ-11828 at doses of 10 and 30 mg/kg, po. CJ-11828 decreased the blood pressure in coscuous fog at the dose level of 2mg/kg, po, but it was expected as a result of pharmacological activity of CJ-11828. Any effect on respiratory system was not observed in conscious rat at doses of 3,10, and 30 mg/kg, po. The slight decrease in spontaneous motor activity was observed in mice treated with CJ-11828 at high dose, 30 mg/kg. In vitro experiments, CJ-11828 had no effect on agonists-induced contraction of isolated guinea pig ileum at 0.1, 1, and 10 ${\mu}$M. Based on these results, it was concluded that CJ-11828 had no pharmacological effect ill these studies even up to the 36-fold anticipated clinical dose, 3 mg/kg.

Spatial Experience and Design Method in the Installation Projects of Olafur Eliasson - Focusing on Relationship between Human and Surrounding - (올라퍼 엘리아슨의 설치 작품에 나타난 공간 경험 및 디자인 방법 - 인간, 환경 사이의 관계성을 중심으로 -)

  • Lee, Song-Hak;Kim, Jong-Jin
    • Korean Institute of Interior Design Journal
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    • v.23 no.5
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    • pp.33-40
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    • 2014
  • The Danish-Icelandic artist, Olafur Eliasson who was born in 1967 is known for installation projects employing materials such as colour, fog, mirror and light to rethink the relationship between human and surrounding. Since he started the early projects, Eliasson has been interested in the relationship between an art, a viewer and space. He has used the medium from nature because he thought nature is very common subject to derive new idea of relationship between human and surrounding. Eliasson revealed the idea of relationship between human and surrounding by three characteristics of spatial design such as 'reinterpretation of placeness by juxtaposition of mediums and defamilarization', 'ambiguity and extensity of depth distance of space by mediums' and 'change in spatiality by movement of viewers and time'. This paper focused on four case projects : The mediated motion in 2001, The weather project in 2003, The blind pavilion in 2003, Your rainbow panorama in 2011. It is aimed to discover relationship between human and surrounding in the case projects under three characteristics. This study found that three characteristics were differently applied in the case projects in terms of spatial experience and design methods. Inside & outside locations, formal quality, visual-perceptual relationships in and around each case are crucial elements and tools. The unique relationship between human and surrounding of Eliasson and three characteristics are applicable to architecture and spatial design.

Use of CGF and CCW as Medium Components for Commercial Production of Plug Seedlings of Seogun Tomato (토마토 공정묘의 상업적 생산을 위한 배지구성물질로서 발포유리와 탄화 밤나무 칩의 이용)

  • 황승재;정병룡
    • Journal of Bio-Environment Control
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    • v.13 no.2
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    • pp.81-89
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    • 2004
  • This study was conducted in a commercial plug glasshouse in Sacheon to examine the possibility of producing tomato plug seedlings using various growing media containing cellular glass foam (CGF)and carbonized chestnut woodchips (CCW) as medium components. Plug seedlings of 'Seogun' tomato were grown in media containing 50% CCW+50% peatmoss, 33% CGF+67% peatmoss, and 50% peatmoss+50% granular rockwool. A commercial plug medium (Tosilee) was used as the control. All seeds were sown in 200 cell plug trays on November 28, 2001. Seedling growth was measured at 31 days after sowing. Each treatment showed a similar growth result as compared to the control. Plant height, root grade, fresh weight, and air space and bulk density of the medium were significantly greater in the 33% CGF+67% peatmoss treatment than those in the other media. However, growth was slightly suppressed in the 50% CCW+50% peatmoss. pH and EC of the media were the highest in the control treatment, although no toxicity symptoms had been observed. The results suggest that perlite can be replaced with a new material such as CGF in the commercial scale production of plug seedlings of 'Seogun' tomato.

The Marine Safety Judgment Management System for Scientific Investigation and Analysis of Marine Accidents (해양사고의 과학적인 수사 및 분석을 위한 해양안전심판관리 시스템)

  • Kim, Jeong-Rok;Jong, Jae-Yong;Im, Nam-Kyun;Kim, Chol-Seong
    • Proceedings of KOSOMES biannual meeting
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    • 2006.11a
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    • pp.9-13
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    • 2006
  • In the marine accidents judgment, investigation of truth of matters is one of important process to find out the reason of ship collision accidents. In this paper, reproduce system of ship collision accidents using ship manoeuvirng simulator technique will be introduced with which marine accidents can be easily reproduced in visual display at the case of marine accidents trial. In this system if the users select the type of ship and location of accidents, the process of ship collision will be provided in 2D and 3D display. The system also provides environmental visualizationdisplay such as fog whether and day-night view including various view angle that can be helpful to find out the reason of accidents.

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A Study on Simulation Effect Technique of C.G : Focusing on the Fire Simulation Effect (CG산업에서 Simulation 표현의 기술적 활용에 대한 연구 - 불의 표현 활용사례를 중심으로 -)

  • Kim, Yong-Kwan
    • Cartoon and Animation Studies
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    • s.17
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    • pp.188-204
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    • 2009
  • This study purpose development cg technique our nation because present Technique limit of Computer graphic R&D that the best competition of 3D Computer graphic part and present a answer of how to overcome Technique limit of Computer graphic R&D with success example of Computer graphic R&D an advanced country. if we make full of mutuality supplementation of C.T and I.T then hold a dominant position and the over the limit solution We researches on multi or group simulation of cyber character and water, fire, wind, fog Simulation System of Computer graphic and purpose development of direction Computer graphic R&D to people in Computer graphic the result of this study and introduction of project of a research institution and inflection method this time is a point of R&D time of determined and resolution instead creative part.

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Effect of Dietary Lipids and Guar Gum on Lipid Metabolism in Ovariectomized Rats (식이지방의 종류와 Guar Gum의 첨가가 난소절제한 흰쥐의 지질대사에 미치는 영향)

  • 안혜선
    • Journal of Nutrition and Health
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    • v.30 no.10
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    • pp.1123-1131
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    • 1997
  • This study examined the effect of dietary lipids and guar gum on lipid metabolism in ovariectomized rats. The experimental animals received ovarietomy (OVX). Lipids sources were divided into 3 groups (soybean oil(SB), beef tallow(BT)) and fish oil(FO)) and guar gum was supplemented to each lipid diet (SBG, BTG, FOG). Experimental diets were fed to therats for 16 weeks. Serum triglyceride (TG) levels were higher in the BT group and lower in the FO group as compared to the SB group .Serum total cholesterol (Tc) and HDL-C levels were lower in the FO group as compared to the SB group. Serum LDL-C and phospholipid levels were lower in the FO group as compared to the SB group. Serum lipids levels were lowered by guar gum supplement. Serum SFA(saturated fatty acids) contents were not significantly influenced by dietary lipids and guar gum. Serum MUFA(monounsaturated fatty acids) contents were the lowest in the SB group. Fecal weight was highest in the beef tallow group and lowest in the fish oil group. Fecal weight was increased by guar gum supplement in all lipid groups. Total bile acid content in feces was increased by guar gum supplement in the soybean oil and beef tallow groups. The endothelial cells of the beef tallow group changed from a flat shape to distorted round and enlarged shapes. The subendothelial layer was the thickness the thickest in the beef tallow group ; the interspace between elastic lamina was widened and elastic lamina was straightened and partly disrupted . The fish oil group showed more porminient endothelial cells and subendothelial layer. Internal elastic membrane and elastic lamina exhibited regularly wavy shapes. Guar gum supplement showed positive effects in all lipids groups. Based on the above results , it is suggested that beef tallow increased serum TG levels and injured the wall of the aorta. On the other hand, fish oil , which decreased serum lipid levels, has a positive effect on the walls of the aorta. Guar gum protects the aorta from injury by reducing the serum lipid levels. Therefore, it is suggested that soybean oil and beef tallow consumed with guar gum is beneficial.

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A Framework for Object Detection by Haze Removal (안개 제거에 의한 객체 검출 성능 향상 방법)

  • Kim, Sang-Kyoon;Choi, Kyoung-Ho;Park, Soon-Young
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.5
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    • pp.168-176
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    • 2014
  • Detecting moving objects from a video sequence is a fundamental and critical task in video surveillance, traffic monitoring and analysis, and human detection and tracking. It is very difficult to detect moving objects in a video sequence degraded by the environmental factor such as fog. In particular, the color of an object become similar to the neighbor and it reduces the saturation, thus making it very difficult to distinguish the object from the background. For such a reason, it is shown that the performance and reliability of object detection and tracking are poor in the foggy weather. In this paper, we propose a novel method to improve the performance of object detection, combining a haze removal algorithm and a local histogram-based object tracking method. For the quantitative evaluation of the proposed system, information retrieval measurements, recall and precision, are used to quantify how well the performance is improved before and after the haze removal. As a result, the visibility of the image is enhanced and the performance of objects detection is improved.

Characteristics of Precipitable Water Vapor and Liquid Water Path by Microwave Radiometer (마이크로웨이브 라디오미터에서 관측된 가강수량 및 구름물량 특성 분석)

  • Yang, Ha-Young;Chang, Ki-Ho;Cha, Joo-Wan;Choi, Young-Jean;Ryu, Chan-Soo
    • Journal of the Korean earth science society
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    • v.33 no.3
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    • pp.233-241
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    • 2012
  • Based on the observation of the microwave radiometers at Cheongju, Hapcheon and Daegwallyeong in Korea, the precipitable water vapor and liquid water path have been analyzed for spatio-temporal characteristics. The observed datas have been validated by comparing precipitable water vapor between the microwave radiometer and the radiosonde near the sites. It resulted in the correlation coefficient of more than 0.8 in all three sites. For three regions, the precipitable water vapor shows similar seasonal variation and diurnal cycle, and that amount of precipitable water vapor increases from around 1000 LST and has a maximum value at 1900 LST. On the other hand, the liquid water path of microwave radiometer has regional differences for its seasonal variation, which seems to be caused by the geographical characteristics including the frequent fog and clouds in Daegwallyeong, a high mountain region (834 m from sea level), almost flat land in Chengju, and Sobaek Mountains in Hapcheon that blocks the westerly clouds.

Lane Detection for Adaptive Control of Autonomous Vehicle (지능형 자동차의 적응형 제어를 위한 차선인식)

  • Kim, Hyeon-Koo;Ju, Yeonghwan;Lee, Jonghun;Park, Yongwan;Jeong, Ho-Yeol
    • IEMEK Journal of Embedded Systems and Applications
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    • v.4 no.4
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    • pp.180-189
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    • 2009
  • Currently, most automobile companies are interested in research on intelligent autonomous vehicle. They are mainly focused on driver's intelligent assistant and driver replacement. In order to develop an autonomous vehicle, lateral and longitudinal control is necessary. This paper presents a lateral and longitudinal control system for autonomous vehicle that has only mono-vision camera. For lane detection, we present a new lane detection algorithm using clothoid parabolic road model. The proposed algorithm in compared with three other methods such as virtual line method, gradient method and hough transform method, in terms of lane detection ratio. For adaptive control, we apply a vanishing point estimation to fuzzy control. In order to improve handling and stability of the vehicle, the modeling errors between steering angle and predicted vanishing point are controlled to be minimized. So, we established a fuzzy rule of membership functions of inputs (vanishing point and differential vanishing point) and output (steering angle). For simulation, we developed 1/8 size robot (equipped with mono-vision system) of the actual vehicle and tested it in the athletics track of 400 meter. Through the test, we prove that our proposed method outperforms 98 % in terms of detection rate in normal condition. Compared with virtual line method, gradient method and hough transform method, our method also has good performance in the case of clear, fog and rain weather.

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Novel Defog Algorithm via Evaluation of Local Color Saturation (국부영역 색포화 평가 방법을 통한 안개제거 알고리즘)

  • Park, Hyungjo;Park, Dubok;Ko, Hanseok
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.3
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    • pp.119-128
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    • 2014
  • This paper presents a new method for improving the quality of images corrupted by an external source that generates an attenuation and scattering of light like dust, water droplets and fog. Conventional defog methods typically encounter a distortion such that the restored image has low contrast and oversaturation of color in some regions because of the mis-estimated airlight and wrong media transmission. Therefore, in order to mitigate these problems, we propose a robust airlight selection method and local saturation evaluation method for estimating media transmission. The proposed method addresses the wrong media transmission and over-saturation problems caused by the mis-estimated airlight and thereby improves the restored image quality. The results of relevant experiments of the proposed method against conventional ones confirm the improved accuracy of atmospheric light estimation and the quality of restored images with regard to objective and subjective performance measures.