• Title/Summary/Keyword: drainage method

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A Case Report on Trephing Opening for Treatment of Empyema in Dairy Cow (젖소의 전두동축농증 치료를 위한 원거술시술 일례)

  • Kwun Hae Byeong
    • Journal of the korean veterinary medical association
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    • v.15 no.8
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    • pp.463-466
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    • 1979
  • In treatment of empyema of frontal sinus in a dairy cow, modified trephing method was applied and aquired satisfactory drainage of pus and discharge from frontal sinus. Methods of trephing opening applied were as follows : 1. Site of trephing opening for

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Evaluation of the Smear Zone by Numerical Analysis Method (수치해석에 의한 스미어 존 평가)

  • Kang, Yun;Nam, Yelwoo;Lee, Seombeom;Kim, Hongtaek
    • Journal of the Korean GEO-environmental Society
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    • v.8 no.3
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    • pp.35-40
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    • 2007
  • The vertical drain method recently being used in Korea is divided into the sand drain method, the pack drain method, the paper drain method, and the PBD method according to the drainage. However, these methods generate the disturbed zone called the smear zone when the drainage is penetrated into the in-situ ground. The characteristics of the smear zone generated cause the problems that the coefficient of permeability decreases and the consolidation time becomes longer than expected in the design. Although the size of the smear zone is a very important factor directly influencing the degree of consolidation, in the existing studies, the general value for the size of the smear zone proposed has been used in the design. However, the size of the smear zone proposed by the existing studies cause a loss of economical efficiency because of the inaccuracy of the design. Hence, in this study, the characteristics on the size of the smear zone were analyzed by carrying out the three dimensional numerical analysis and the method to determine the conversion size of the smear zone considering the change of the coefficient of permeability was proposed in order to consider the change of the coefficient of permeability in the actual design.

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Effects of the Drainage Methods on Phenolic Compounds and Radical Scavenging Activity of Foxtail Millet and Proso Millet (배수방법이 조와 기장의 페놀성분 및 라디칼 소거활성에 미치는 영향)

  • Jung, Ki Yuol;Ko, Jee Yeon;Lee, Jae Saeng;Jeong, Mi Sun;Oh, In Seok;Woo, Koan Sik
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.3
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    • pp.282-292
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    • 2014
  • This study investigated the changes of antioxidant compounds and antioxidant activity of foxtail millet (FM) and proso millet (PM) by drainage methods in poorly drained sloping paddy field. The experimented soils in this study were very poorly drained (VPDP) and imperfectly drained paddy soil (IDP). Two drainage methods namely under pipe drainage (UPD) and open ditch (ODD) were installed within 1-m position at the lower edge of the upper paddy fields. The soil moisture contents of UPD and ODD on VPDP were $18.52{\pm}4.58$ and $19.01{\pm}4.25%$, and IDP were $14.87{\pm}4.82$ and $18.64{\pm}3.85%$, respectively. Generally, crop yields, proximate and minerals composition of FM and PM showed significant differences by drainage methods. The total polyphenol, flavonoid and tannin contents, and radical scavenging activity of the ethanolic extracts of FM and PM showed significant differences by drainage methods. The total polyphenol content of FM and PM by drainage methods was 1.69~2.30 and 1.18~1.35 mg GAE/g, total flavonoid content was 0.31~0.76 and 0.27~0.41 mg CE/g, and total tannin content was 0.36~0.54 and 0.21~0.28 mg TAE/g, respectively. The DPPH radical scavenging activity of FM and PM was 39.53~59.81 and 27.91~40.25 mg TE/100 g, and ABTS radical scavenging activity was 113.59~152.10 and 61.38~79.19 mg TE/100 g, respectively. The antioxidant compounds and radical scavenging activity of FM and PM by drainage methods were frequently affected soil water.

Percutaneous Catheter Drainage of Lung Abscess (폐농양의 경피적 카테타 배농법)

  • Kim, Chang-Ho;Cha, Seoung-Ick;Han, Chun-Duk;Kim, Yeon-Jae;Lee, Yeung-Suk;Park, Jae-Yong;Jung, Tae-Hoon
    • Tuberculosis and Respiratory Diseases
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    • v.40 no.2
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    • pp.158-164
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    • 1993
  • Background: Recently, lung abscess tends to be increased in patients with underlying disease, most of whom are unsuitable for surgery when medical treatment fails. The patients with giant lung abscesses do not frequently respond to antibiotics and often have life-threatening complications. Therefore, more intensive cares are required in these patients. We studied the results and effects of percutaneous catheter drainage in these patients. Method: We performed fluoroscopy-guided percutaneous pigtail catheter (8.3 F) drainage by Seldinger technique in 9 cases of lung abscess (in 7 cases, intractable to medical treatment for an average of 8.4 days and in 2 cases, catheter drainage immediately performed due to a large cavity that was initially 10 cm in diameter). We compared 10 cases of lung abscess as control group which had receieved conventional medical treatment alone. Results: Seven of the 9 patients in study group of percutaneous drainage and 7 of the 10 patients in control group of medical treatment alone clinically improved in the average of 1.8 and 8.7 days, respectively. The mean duration of drainage was 13.2 days. There were 3 cases of death from massive hemoptysis, asphyxia of pus, and sepsis in control group, as compared with 2 cases of death from hepatic encephalopathy and sepsis in study group. The malfunctions of catheter occurred in these 2 cases, obstruction and dislodgement. But there were no significant pleuropulmonary complications of percutaneous drainage. Conclusion: Percutaneous drainage is effective and relatively safe in the management of lung abscesses refractory to medical therapy or giant lung abscesses.

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THE CONTROL METHOD OF CONTINUOUS GINGIVAL BLEEDING IN A DISABLED PATIENT WITH BLEEDING DISORDER : REPORT OF A CASE (출혈성 장애환자에서 지속적인 치은출혈시 지혈법 : 증례보고)

  • Son, Jeong-Seog;Oh, Ji-Hyeon;Yoo, Jae-Ha;Kim, Jong-Bae
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.10 no.1
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    • pp.31-37
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    • 2014
  • The general local cause of gingival bleeding is the vessel engorgement and erosion by odontogenic infection. Abnormal gingival bleeding is also associated with systemic causes. Bleeding disorders in which continuous gingival bleeding is encountered include the followings : vascular abnormalities, platelet disorders, hypoprothrombinemia and other coagulation defects. There are classic methods for gingival bleeding control, such as, direct pressure, electrocoagulation, suture, crushing and application of hemostatic agents. If the continuous gingival bleeding is not stopped in spite of the conventional methods, the life of patient is threatened owing to upper airway obstruction, syncope, vomiting and hypovolemic shock. Therefore, the rapid and correct hemostatic method is very important in the emergency condition. This is a case report of continuous gingival bleeding control by primary endodontic drainage & suture in a disabled patient with systemic bleeding disorders.

Numerical analysis of Self-Boring Pressuremeter test results using FEM - Consolidation characteristics of clay (유한요소해석을 이용한 SBP 시험의 결과해석 - 점성토 지반의 압밀특성)

  • 장인성;정충기
    • Proceedings of the Korean Geotechical Society Conference
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    • 1999.10a
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    • pp.67-74
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    • 1999
  • Self-Boring Pressuremeter Test(SBPT) is known to be the most effective in-situ test method which can reliably determine consolidation characteristics as well as deformation modules and untrained shear strength. In order to derive the coefficient of consolidation using SBPT results it is necessary to obtain the dissipation behavior from the pore pressure change with time during constant radial strain(generally 10%) and to derive the reliable time factor(Τ) from the analytical method which considers the real in-situ conditions. As previous studies on time factor are based on the assumptions of plane strain condition that the membrane of SBP is infinite, of untrained condition during the expansion of the probe and of elastic soil behavior during consolidation, these analyses can't consider the real boundary conditions and the real soil behaviour. In this study, consolidation analysis similar to real in-situ conditions including test procedure is conducted using finite element program which employs MCC model and Biot theory. Time factor considering the effects of finite membrane length, the total pressure change during consolidation and partial drainage is proposed and compared with previous results.

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Runoff Analysis by the Geomorphoclimatic Linear Reservoir Model (지형기후학적 선형저수지 모델에 의한 유출해석)

  • 조홍제
    • Water for future
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    • v.18 no.2
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    • pp.143-152
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    • 1985
  • A method is suggested for the reappearance of a surface runoff hudorgraph of a river basin by linking the hydrologic response of a catchment represented by the instantaneous unit hydrograph(IUH) with the Horton's empirical gemorphologic laws. The geomorphologic theory of the IUH developed by G. Itrube et al. and the geomorphoclimatic theory of the IUH developed by Bras et al. are used to derive the new hydrologic response function in consideration of geomorphologic parameters and climatic characteristics by applying to Sukekawa's rainfall-runoff model. The derived response function was tested for on some observed hydrographs in a natural watershed and showed promising, and by considering a drainage basin as m(1∼4) identical linear reservoir in series, it was founded that the model(m=2) is most applicable to predict hydrologic response regardless of the size of basins. A modelization algorithm of a basin using Sthahler's ordering scheme of drainage network will give good result in analysis of the surface runoff huydrograph by the method of this study.

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Experimental Study on Consolidation Behavior of the Smeared Soil for Various Spacing Ratios of Vertical Drains (다양한 배수재 간격비에 따른 스미어 발생 지반의 압밀거동에 대한 실험적 연구)

  • Yune, Chan-Young;Kang, Hee-Woong;Jung, Young-Hoon
    • Journal of the Korean Geotechnical Society
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    • v.27 no.4
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    • pp.77-87
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    • 2011
  • To investigate the effect of drainage spacing and smear on the rate of consolidation and the efficiency of vertical drain method, a series of consolidation tests with a large consolidation chamber and special equipment for inserting mandrels were conducted. As the smeared region increases, total settlement in over-consolidated clay increases whereas apparent change in settlement does not appear in normally consolidated clay. Vertical drain generally accelerates the rate of consolidation, while it could also deteriorate the efficiency of vertical drain method even for the decreasing drainage length and spacing ratio.