• Title/Summary/Keyword: effective clearance

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A case of Chronic renal failure complicated by Diabetes mellitus (당뇨합병증으로 인한 만성 신부전 환자 1례에 대한 임상적 고찰)

  • Moon, Mi-Hyun;Cho, Young-Kee;Rhim, Eun-Kyung;Hwang, Sang-Il;Baek, Dong-Gi;Song, Chul-Min;Jang, Tong-Young;Jeong, Hyun-Ae;Yun, Jong-Min;Woo, In;Shin, Sun-Ho;Lee, Yun-Jae
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.442-449
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    • 2004
  • This study was designed to evaluate the effects of oriental medicine and acupuncture therapy on a chronic renal failure patient suffering complications from diabetes mellitus. Methods: The clinical data was analyzed on a patient with chronic renal failure complicated by diabetes mellitus whose main symptoms were edema and numbness of lower limbs, anorexia, indigestion, nausea, vomiting, and general weakness. The patient was admitted to the internal medicine department of Wonkwang University Oriental Jeonju Medicine Hospital on July 31, 2004, and remained until August 17, 2004. He was treated with herbal medicine(Palmijiwhangtanggamibang) and acupuncture therapy. Results: After treatment, improvement was seen in symptoms and laboratory examinations(creatinine clearance). Conclusions: This study suggests that oriental medicine therapy is significantly effective in the treatment of a chronic renal failure complicated by diabetes mellitus.

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Electrorheological Properties of ER Fluid under High Shear Flow (고속 전단유동에서 ER유체의 전기유변 특성)

  • Kim Y. C.;Kim K. W.
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • 2003.11a
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    • pp.229-234
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    • 2003
  • As electrorheological fluid(ER fluid) has a characteristic that apparent viscosity varies when electric field applied, so rheological characteristic(yield stress & viscosity) changes in proportion to the electric field applied and the response time is very short within a few miliseconds . In case of using ER fluid for journal bearing as lubricant, it is estimated that it's possible to realize very effective journal bearing system that is not complicate and has a very quick response time. It is necessary to examine the influence of rheological characteristic that varies with electric field applied on bearing characteristic to apply ER fluid to journal bearing, however there are few studies for about that. As for the journal bearing, it comes under high shear flow mode that has shear rate range of $10^3\~10^4s^{-1}$ because rotational speed is very high and clearance is small. But most of the studies for about ER fluid issued until now is about the range of $10\~10^2s^{-1}$. So, there are a lot of difficulties to understand the characteristic offish shear flow mode and furthermore it is restricted to make an experiment for about the characteristic of ER fluid because of the limitation of experimental equipment. The equipment was prepared to make an experiment lot high shear flow mode that has the range of $10^3\~10^4s^{-1}$ using ER fluid that is composed of silicon oil with dispersed particle of starch. Using the above system, the fluid characteristic of ER fluid was studied.

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Finite Element Bending Analysis of Oval Tubes Using Rotary Draw Bender for Hydroforming Applications (로터리 드로우 벤더를 이용한 타원형 튜브의 유한요소 벤딩 해석)

  • Lee Ho-Kuk;Tyne Chester J. Van
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2005.10a
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    • pp.71-74
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    • 2005
  • In manufacturing automotive parts, such as engine cradles, frame rails, subframes, cross-members, and other parts from circular tubes, pre-bending and pre-forming operations are often required prior to the subsequent tubular hydroforming process. During some pre-forming operations, the cross section of a bent circular tube is crushed into an oval-like shape to ensure proper geometry and sufficient clearance in the hydroforming dies. For such applications, the use of oval Instead of circular tubes could be an effective means of eliminating the pre-forming step. The oval tube could also be produced with less thinning and with less strain on the outside of the bend when controlled by a booster system without the use of mandrel. Hence, the understanding of the issues that occur in the bending of oval tubes is worthy of Investigation. This paper presents parametric studies on the bending of oval tubes without a mandrel. The finite element modeling technique is used to examine the deformation characteristics for both circular and oval tubes. In the simulations, the bending process parameters of bend radius, aspect ratio of the tube ovalness, and tube wall thickness are varied. Observations are made to obtain a hoop-buckle limit diagram in terms of a non-dimensional shape degradation factor. Suggestions based upon developed criteria are made on the acceptability of bend tubes suitable for hydroforming applications without the need ofa pre-forming step or the used of a mandrel.

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Effects of Caffeine and Pentoxifylline on Pharmacokinetics of Propentofylline

  • Kwon, Oh-Seung;Kim, Min-Hee;Ryu, Jae-Chun;Chung, Youn-Bok
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1998.11a
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    • pp.122-122
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    • 1998
  • Propentofylline (PPF), a xanthine derivative, has been reported to be effective for the treatment of both vascular dementia and Alzheimer's disease. The elimination half-life of PPF was ranged from 15 to 45 min in rabbit and human, and PPF was rapidly disappeared from the blood. The objective of this experiment is to investigate whether xanthine analogues have effects on the profile of plasma concentration and metabolism of PPF. Caffeine (50 mg/kg, ip) was treated to Sprague-Dawley rats for consecutive 7 days and PPF was intravenously administered to rats 2 hr after the last dose of caffeine. In the other group, PPF was intravenously administered to rats 1 hr after a single dose of pentoxifylline (50 mg/kg, iv). Control group was treated with saline vehicle for the same period as in treatment groups. Blood was withdrawn at specific time intervals. PPF and one of its metabolite (POH) in plasma were determined by gas chromatography/nitrogen phosphorus detector. Plasma concentrations and pharmacokinetic parameters were compared between groups. The area under the curve (AUC) of PPF in rats treated sub chronically with caffeine was significantly decreased compared to control rats. Caffeine treatment results in a significant increase of total body clearance. The AUC of POH was significantly decreased in the caffeine-treated group. A single dose of pentoxifylline has no effect on the phramacokinetics of PPF. Reduction of the AUCs of PPF and POH both suggests that caffeine may increase the excretion of PPF with no affecting the metabolism of PPF to POH.

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Comparative efficacy of photo-activated disinfection and calcium hydroxide for disinfection of remaining carious dentin in deep cavities: a clinical study

  • Sharma, Sidhartha;Logani, Ajay;Shah, Naseem
    • Restorative Dentistry and Endodontics
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    • v.39 no.3
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    • pp.195-200
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    • 2014
  • Objectives: To comparatively evaluate the efficacy of photo-activated disinfection (PAD), calcium hydroxide (CH) and their combination on the treatment outcome of indirect pulp treatment (IPT). Materials and Methods: Institutional ethical clearance and informed consent of the patients were taken. The study was also registered with clinical registry of India. Sixty permanent molars exhibiting deep occlusal carious lesion in patients with the age range of 18 - 22 yr were included. Clinical and radiographic evaluation and set inclusion and exclusion criteria's were followed. Gross caries excavation was accomplished. In group I (n = 20) PAD was applied for sixty seconds. In group II (n = 20), CH was applied to the remaining carious dentin, while in group III (n = 20), PAD application was followed by CH placement. The teeth were permanently restored. They were clinically and radiographically followed-up at 45 day, 6 mon and 12 mon. Relative density of the remaining affected dentin was measured by 'Radiovisiography (RVG) densitometric' analysis. Results: Successful outcome with an increase in radiographic grey values were observed in all three groups. However, on inter-group comparison, this change was not significant (p > 0.05). Conclusions: PAD and CH both have equal disinfection efficacy in the treatment of deep carious dentin. PAD alone is as effective for treatment of deep carious lesion as calcium hydroxide and hence can be used as an alternative to CH. They can be used independently in IPT, since combining both does not offer any additional therapeutic benefits.

A Case Report of Verruca Vulgaris patient treated with Mahaengeuigam-tang and Trichloroacetic acid(TCA) (마행의감탕(麻杏薏甘湯)과 Trichloroacetic acid (TCA) 병행치료를 이용한 심상성 사마귀의 한방 치험 1례)

  • Kang, Eun-Jeong;Kam, Eun-Young;Choi, Jung-Hwa;Kim, Jong-Han;Park, Soo-Yeon;Jung, Min-Yeong
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.33 no.2
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    • pp.156-163
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    • 2020
  • Objectives : The purpose of this study is to report the effects of Mahaengeuigam-tang and Trichloroacetic acid(TCA) on hand warts. Exfoliation, such as TCA is a method developed from traditional medicine and used to treat hyperkeratosis skin in this patient. Methods : A patient with Verruca Vulgaris was treated with herbal medicine, including Mahaengeuigam-tang and application of TCA on wart lesions. Changes in lesions were evaluated by photographs. Results : After 3 months of treatment, The patient's lesions showed complete clearance. There are no adverse effects and no relapse of Verruca Vulgaris after 57 days of last treatment. Conclusions : According to the result, Mahaengeuigam-tang and External treatment such as TCA developed from traditional medicine can be effective for Verruca Vulgaris.

Evidence to Support the Therapeutic Potential of Bacteriophage Kpn5 in Burn Wound Infection Caused by Klebsiella pneumoniae in BALB/c Mice

  • Kumar, Seema;Harja, Kusum;Chhibber, Sanjay
    • Journal of Microbiology and Biotechnology
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    • v.20 no.5
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    • pp.935-941
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    • 2010
  • The emergence of antibiotic-resistant bacterial strains is one of the most critical problems of modern medicine. Bacteriophages have been suggested as an alternative therapeutic agent for such bacterial infections. In the present study, we examined the therapeutic potential of phage Kpn5 in the treatment of Klebsiella pneumoniae B5055-induced burn wound infection in a mouse model. An experimental model of contact burn wound infection was established in mice employing K. pneumoniae B5055 to assess the efficacy of phage Kpn5 in vivo. Survival and stability of phage Kpn5 were evaluated in mice and the maximum phage count in various organs was obtained at 6 h and persisted until 36 h. The Kpn5 phage was found to be effective in the treatment of Klebsiella-induced burn wound infection in mice when phage was administered immediately after bacterial challange. Even when treatment was delayed up to 18 h post infection, when all animals were moribund, approximately 26.66% of the mice could be rescued by a single injection of this phage preparation. The ability of this phage to protect bacteremic mice was demonstrated to be due to the functional capabilities of the phage and not due to a nonspecific immune effect. The levels of pro-inflammatory cytokines (IL-$1{\beta}$ and TNF-${\alpha}$) and anti-inflammatory cytokines (IL-10) were significantly lower in sera and lungs of phage-treated mice than phage untreated control mice. The results of the present study bring out the potential of bacteriophage therapy as an alternate preventive approach to treat K. pneumoniae B5055-induced burn wound infections. This approach not only helps in the clearance of bacteria from the host but also protects against the ensuing inflammatory damage due to the exaggerated response seen in any infectious process.

An Assessment of Records Management Practice in Selected Local Government Councils in Ogun State, Nigeria

  • Bakare, Abdullahi A.;Abioye, Abiola A.;Issa, Abdulwahab Olanrewaju
    • Journal of Information Science Theory and Practice
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    • v.4 no.1
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    • pp.49-64
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    • 2016
  • What government does/fails to do is conveyed to the public largely by records and information of various types in the public service, without which there will be no government. When records are poorly managed, much time is involved in sorting and locating needed information from large volumes of records. The rate of records misplaced or lost from which useful information for decision making is usually obtained makes it difficult to provide concise and up-to-date records of both past and present operations, raising the challenge of effective record-keeping. Thus this study examined records management practices in selected local government councils in Ogun State, Nigeria, adopting the descriptive survey research method using questionnaires for data collection. Its population comprised 415 records of personnel in the selected councils, of which 208 were sampled using simple random technique. From the 208 copies of the questionnaire administered on the registry personnel, 150 copies were useable, with a 72.12% response rate. Descriptive statistics were used for the analysis. The results indicated a prevalence of paper as the dominant medium for recording/conveying information in the councils with most of these being either in active state, semi-active, and vital and were kept and maintained in the registry, while in-active records were kept in the records store. Storage facilities for record-keeping were insufficient. Security measures against unauthorized access to records were by restrictions and subject users to managerial clearance. The study concluded that council records were in chaos and recommended the formulation of coherent records management policy, adequate budgetary provision, and adequate finance.

Three Cases of Pulmonary Alveolar Proteinosis (폐포 단백증 3예)

  • Kim, Yeon-Jae;Han, Chun-Duk;Cha, Seung-Ick;Kim, Chang-Ho;Lee, Yeung-Suk;Park, Jae-Yong;Jung, Tae-Hoon;Park, Tae-In;Sohn, Yun-Kyung
    • Tuberculosis and Respiratory Diseases
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    • v.40 no.4
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    • pp.416-423
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    • 1993
  • Pulmonary alveolar proteinosis(PAP) is thought to be a rare disease of unknown etiology characterized by the accumulation of strong PAS-positive lipoproteinaceous material in the pulmonary alveolar spaces. The defect in the clearance and degradation of intra-alveolar phospholipoproteinaceous material in PAP likely represents dysfunction of type II pneumocytes. Although the causative treatment of PAP is not well known, yet whole lung bronchopulmonary lavage is a relatively safe and effective treatment. We experienced three cases of PAP, which were confirmed by light and electron microscopic examinations of lung tissues obtained by open lung biopsy, transbronchial lung biopsy and lung lavage, so we present 3 cases of PAP with a review of the literature.

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Safe Management for Hazardous Cargo in relation to explosions in port of Tianjin (천진항 사고에 따른 안전한 위험물 관리방안)

  • An, Jung-Min;Lee, Hong-Hoon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.10a
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    • pp.208-210
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    • 2015
  • After the huge explosive accident in port of Tianjin, it is being strengthened on the dangerous goods regulations. This also has been make an extra impact which must meet international standards and even different parts became possible import customs regulations exporting from Korea. Since 2004, internationally in compliance with the enforced the transport of dangerous goods regulations (IMDG Code), but becomes substantial damage to the domestic industry that exports of dangerous goods is a lot of difficulties in the logistics of efficiency due to possible follows only the clearance to the needs of the Chinese Government. In Korea and secure hazardous materials management needs have emerged, but piecemeal ad hoc policy is connected economically costly and unnecessary regulations weighted long-term safe at the same time enables continuation of the development of the only domestic chemical industry to find effective hazardous materials management plan it is.

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