• Title/Summary/Keyword: congestion effects

Search Result 234, Processing Time 0.028 seconds

The Effects of Bojungikgi-tang on the Nasal Tissue in Allergic Rhinitis of Ovalbumin0inhalation Rats. (보중익기탕이 알레르기 비염 유발 白鼠의 과립구 및 조직학적 변화에 미치는 효과)

  • Kim Jong-sung;Sim Sung-yong;Um Yu-sik;Nam Hae-jeong;Kim Kyung-jun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.17 no.1
    • /
    • pp.66-74
    • /
    • 2004
  • Allergic rhinitis is an allergic reaction characterized by sneezing, coughing, itchy nose, mouth and throat, congestion and/or nasal discharge. The offending allergens are usually pollens, molds, dust mites and animal allergens. We aimed to observe inhibitory effects of Bojungikgi-tang on incerase of the number of eosinophil and neutrophil, and protective effects of nasal mucosal tissue in the allergic rhinitis. 1. In Inhibitory Effect of Bojungikgi-tang on Increase of the number of Eosinophil in Serum, Bojungikgi-tang showed significant effects.(p〈0.05) 2. In Inhibitory Effect of Bojungikgi-tang on Increase of the number of Neutrophil in Serum, Bojungikgi-tang showed significant effects.(p〈0.05) 3. In histopathologic change of nasal mucosal tissue, Bojungikgi-tang showed significant protective effects. Depending upon above results, it is considered that Bojungikgi-tang has the inhibitory effects on the process of allergic rhinitis and that it could be used in reliving patients of the symptoms caused by allergic rhinitis.

  • PDF

A Case Study on the Traffic Operational Guidance for Temporary Closure of Climbing Lane; Focusing on Nakdong JC at Jungbunaeryuk Expressway (오르막차로 일시 폐쇄를 위한 교통운영기준 사례연구 (중부내륙고속도로 낙동JC를 중심으로))

  • Choi, Yoon-Hyuk;Lee, Seung-Jun;Bae, Young-Seok;Ko, Han-Geom
    • International Journal of Highway Engineering
    • /
    • v.12 no.4
    • /
    • pp.17-28
    • /
    • 2010
  • A climbing lane is installed to separate low-speed traffic from high-speed traffic if drastic traffic capacity reduction is expected due to a large number of vehicles that slow down in the upward section. Existing studies on climbing lanes have focused on the designation, location of starting and ending points, and installation method of climbing lane with regard to road design standards. However, in terms of traffic operation, it was known that the climbing lanes cause traffic congestion due to the increase of traffic volumes. In this regard, this study aims to establish traffic operational guidance as to how much effects temporary closure of climbing lanes can have on traffic improvement according to the volume-capacity ratio, grade, and composition of trucks. A test section of simulated climbing lane was selected in Nakdong JC bound for Masan(136.9K~133.3K, 3.6km, 3.7%) on Jungbunaeryuk expressway to conduct VISSIM analyses, microscopic traffic simulation based on such control variables as traffic volume(v/c), grade and the trucks ratio. As a result of the analyses, it has been found that v/c and the ratio of trucks are the key variables for efficient traffic management of climbing lanes in order to relieve traffic congestion via climbing lane. If ratio of trucks are more than 50% and when v/c would be 0.8, both climbing lane would be closed and non-operated regardless of grade and ratio of trucks when v/c is 1.0. With the increased traffic due to a five-day work week system, continued peak hours during the weekday, increased and various patterns of congestion on expressway, this study would be expected to contribute to facilitating researches on flexible operational standards for road facilities.

Study Regarding Interrelations of Transportation Network Using Multi-Criteria Analysis (다기준 분석기법을 이용한 교통네트워크의 상호연관성에 관한 연구)

  • NamKung, Baek-Kyu;Chung, Sung-Bong;Kim, Si-Gon;Yi, Su-Ho
    • Proceedings of the KSR Conference
    • /
    • 2011.10a
    • /
    • pp.1816-1824
    • /
    • 2011
  • Recently, with traffic SOC investment policy changing from road-centered to railway-centered according to environment-friendly and sustainable development, issues regarding overlapping and overinvestment of traffic facility have been raised. Regarding investment of various traffic facilities of which departure and destination are similar to each other, academia, civic organizations, government, etc. are recognizing problems including overlapping investment of budget, environmental destruction, etc., but not suggesting definite solutions. Objective transportation network analysis is required because various positive effects including solutions of delay/congestion may occur due to provision of alternative way and distribution of the amount of traffic when accidents occur, as well as negative effects suggested by some of civic organizations in various transportation facility investment of similar departure and destination. Hereupon, this study tries to suggest a tool that can objectively evaluate interrelations of transportation network by applying multi-criteria analysis including economic feasibility regarding analysis of interconnections between and within means of transportation.

  • PDF

A study on using practice of contact lens and side effects (연성콘택트렌즈 착용자의 실태와 부작용에 대한 연구)

  • Kang, Hyang Nyeo
    • Journal of Korean Ophthalmic Optics Society
    • /
    • v.7 no.1
    • /
    • pp.69-73
    • /
    • 2002
  • This questionnaire studied the status of wear and care for soft contact lens, of 200students wearing loft contact lens. 50% of man wore soft contact lens, 8 hours and 52% of woman wore soft contact lens 10 hours per a day, 51% of man has worn soft contact lens 3 years 45% of woman has worn soft contact lens 3 year. For the side effects of wearing contact lens 39% of man soft contact lens wearers experienced eye congestion, 72% of woman soft contact lens wearers dryness eyes.

  • PDF

Toxicity and Effects of the Herbicide Glufosinate-Ammonium (Basta) on the Marine Medaka Oryzias dancena

  • Kang, Gil Ran;Song, Ha Yeun;Kim, Dong Soo
    • Fisheries and Aquatic Sciences
    • /
    • v.17 no.1
    • /
    • pp.105-113
    • /
    • 2014
  • Glufosinate-ammonium, a component of the herbicide Basta, is one of the most extensively used pesticides worldwide. In this study, we assessed subchronic and chronic toxicities of Basta and its histopathological effects on the marine medaka Oryzias dancena. Marine medaka were exposed to 0, 2, 4, or 8 mg/L of Basta for 28 or 42 days. The lethal concentration ($LC_{50}$) of Basta for 96 h is 8.76 mg/L. Histological changes in the gills and liver were evaluated with histopathological indices, allowing quantification of the damage to fish exposed to Basta. Blood congestion, lamellar fusion, and epithelial lifting were observed in the gills, and hydropic degeneration, fibrosis, lipid degeneration, leukocyte infiltration, and necrosis were found in the liver. These responses could be useful indicators of Basta toxicity in this species.

An Experimental Study on the Effects of Steel Fibers used at R/C Exterior Joints (철근 콘크리트 보-기둥 외측 접합부에 적용된 강섬유의 효과에 관한 실험연구)

  • Choi, Ki-Bong;Oh, Jong-Han;Kim, Jae
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.2 no.3
    • /
    • pp.188-193
    • /
    • 1998
  • An experimental study was performed on the pull-out behavior of 90-deg standard hooks from exterior beam-column connections. The effects of lateral confinement and fiber reinforcement of joint area were investigated. It was concluded ; (1) Substitution of the transverse column (confining) reinforcement with steel fibers at the joint region effectively reduces the extent of cracking in exterior joints caused by pull-out of hooked bars; and (2) The strength and ductility of hooked bars under pull-out forces are positively influenced by substituting the conventional confining reinforcement of exterior joints with steel fibers. Application of steel fibers to exterior joints seems to be an effective technique for improving the anchorage conditions of hooked bars, and also for reducing the congestion of reinforcement in exterior beam-column connections.

  • PDF

The Clinical Study on the Effects of BOM Gunbisoyeom-tang(Jianbixiaoyan-tang) Gamibang for Allergic Rhinitis (알레르기 비염에 대한 BOM건비소염탕(健脾消炎湯) 가미방의 치료효과 연구)

  • Kim, Ki-Joon;Lee, Joon-Suk
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.22 no.1
    • /
    • pp.141-147
    • /
    • 2009
  • Objective : We investigated the effects of BOM Gunbisoyeom-tang(Jianbixiaoyan-tang) Gamibang having prescribed clinically to patients with perennial allergic rhinitis. Methods : We prescribed BOM Gunbisoyeom-tang(Jianbixiaoyan-tang) Gamibang for 1 month to 77 patients visiting to KimKiJoon Orentalclinic BOM from January 1 to December 31, 2008 with perennial allergic rhinitis and analysised the questionnaire(symptom severity assessment) before and after treatment. Results : BOM Gunbisoyeom-tang(Jianbixiaoyan-tang) Gamibang improved significantly all nosal symptoms(sneezing, runny nose, congestion, itchy nose and postnasal drip), some non-nasal symptoms(eye and throat symptoms, headache and mental function) except chromic cough and ear symptoms and quality of life. Conclusion : BOM Gunbisoyeom-tang(Jianbixiaoyan-tang) Gamibang cured effectively patients with perennial allergic rhinitis by 1 month treatment but not perfectly. So further studies are needed for treatment duration and changes of pathological index before and after treatment.

  • PDF

Protective Effects of SAPP, a Novel Herbal Complex, in Acute Hepatotoxic Mouse Model

  • Lee, Geum Seon;Lee, Ki Man;Kim, Seung Hyun;Jeong, Nam-Joo;Kim, Young-Jung;Jung, Ju-Young;Kang, Tae Jin
    • Natural Product Sciences
    • /
    • v.19 no.2
    • /
    • pp.173-178
    • /
    • 2013
  • The protective effect of SAPP, an extract from a novel herbal complex, on acute liver injury was investigated using mouse animal model in this study. The content of total phenol in SAPP was increased at dose dependent manner. Consistent with the content of total phenol, SAPP showed the significant anti-oxidative effects on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) method. Acute liver injury was induced by D-galactosamine (D-GalN) in mouse. Treatment with SAPP significantly reduced the level of alanine transaminase (ALT) and aspartate transaminase (AST) in serum. Histological observation revealed that whereas D-GalN treated mouse showed vacuolization of hepatocytes, sinusoidal dilation and congestion, loss of cell boundaries and ballooning degeneration, loss of architecture and cell necrosis, treatment with SAPP improved D-GalN-induced liver injury. These results suggest that SAPP shows protective effects against D-GalN-induced hepatotoxicity in vivo acute mouse model.

Evaluation on Effectiveness of Intelligent Transport Systems in Suwon

  • Oh, Young-Tae;Yun, Il-Soo;Lee, Hwan-Pil;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.10 no.2
    • /
    • pp.55-65
    • /
    • 2011
  • The city of Suwon has introduced various ITS services between 2001 and 2006 as an alternative to solve chronic traffic congestion in the city. After the successful implementation, there was an effort to evaluate effects from the ITS deployments. However, the effects caused from ITS implementations may be realized in many different ways. Therefore, this research effort was aimed at evaluating the effectiveness of ITS implements through the first and second phases in Suwon using reasonable and scientific methods. Based on results from the analysis of variables presenting traffic condition, surveys and economic evaluation, the implementation of ITS services in Suwon can be concluded successful. However, there is a need for efforts to maintain the effects produced from the successful introduction of ITS services through continuous upgrading the systems, intensive maintenance, and efficient operations.

Effectiveness Analysis of Transforming Many-Legs Type Intersection into Roundabout in Jeju (제주지역 다지교차로의 회전교차로 교통시스템 변환에 따른 효과분석)

  • Lee, Dong Weon;Ko, Sang Ick;Lee, Dong Wook
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.32 no.6D
    • /
    • pp.623-636
    • /
    • 2012
  • Roundabout is an intersection that allows vehicles to pass through the intersection by circulating the circular traffic island at the center of the intersection. In this study, a comparative analysis was conducted on roundabout at five locations in order to deduce the operational result and financial effect of roundabout and signal intersection. As for the operational result, it was found that roundabout showed improvement effect in the average delay per vehicle compared to that of signal intersection by minimum of 65.6% and maximum of 91.77%. it was found that roundabout showed financial cost-saving effect in the traffic congestion cost compared to that of signal operation by minimum of 58.59% and maximum of 81.69% per year. It can be known from these analysis results that roundabout has significant operational effects under certain amount of traffic volume by allowing vehicles to pass through the intersection in a continuous way without much waiting time and stoppage from signal control.