• 제목/요약/키워드: laboratory report

검색결과 1,528건 처리시간 0.03초

수력 발전기 고정자 권선의 절연수명 평가기준 설정에 관한 연구 (A Study on the Evaluation Criteria for the Remaining Life of Hydro-Generator Stator Insulation)

  • 황돈하;김용주;김진봉;박명수;김희곤;이상중
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 하계학술대회 논문집 C
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    • pp.1769-1773
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    • 1996
  • The remaining life of generator stator winding has been the controversial issue amomg many experts in this area. The report from Japan claims that they can predict the remaining life of generator winding, while the North American has the negative opinion about it. This study aimed at verifying the validity of both Japanese criteria and North American argument on evaluation of generator winding insulation. Non destructive and destructive tests were performed on two hydro-generators. The test results showed that the trend analysis of stator winding insulation was the better option.

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Viewing Angle Characteristics of the Ultra-FFS TFT-LCD

  • Kim, H.Y.;Noh, J.D.;Park, C.H.;Koh, J.W.;Lee, W.G.;Park, H.S.;Lee, S.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.459-462
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    • 2002
  • We report viewing angle characteristics of the Ultra-FFS TFT-LCD. The FFS mode is known to exhibit both a wide viewing angle and high transmittance, owing to the approximated in-plane rotation of the LC director. Nevertheless, in the bright state, the device shows bluish and yellowish color parallel and perpendicular to the LC director at off-normal directions since the LC director rotates onl.v in one direction, and in addition, the grey scale inversion exists in large oblique viewing angle. However, the Ultra-FFS shows no grey scale inversion and no color shift in wide viewing angle range.

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당뇨병환자의 연조직염에서 분리된 Arcanobacterium haemolyticum 1예 (A Case Report of Arcanobacterium haemolyticum Isolated from Diabetic Patient with Cellulitis)

  • 이현;이덕희;주세익;김의종
    • 대한임상검사과학회지
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    • 제41권2호
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    • pp.52-56
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    • 2009
  • Arcanobacterium haemolyticum was usually isolated from respiratory infection. Occasionally, the cases were reported to cause pharyngotonsillitis, cellutitis, and abscess. A. haemolyticum is V form gram-positive bacilli (coryneform bacilli), which isoften considered to be non-pathogenic normal flora or contaminants in respiratory, skin and wound infection. In order to discriminate from normal flora, incubation for at least 48 hours is recommended. We describe a case that A. haemolyticum was isolated from cellulitis with group G ${\beta}$-hemolytic Streptococcus, Klebsiella pneumoniae ssp. pneumoniae, and Prevotella disiens.

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Genetic Stability Studies in Micropropagated Date Palm (Phoenix dactylifera L.) Plants using Microsatellite Marker

  • Kumar, Nitish;Singh, Amritpal S.;Modi, Arpan R.;Patel, Armi R.;Gajera, Bhavesh B.;Subhash, Narayanan
    • Journal of Forest and Environmental Science
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    • 제26권1호
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    • pp.31-36
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    • 2010
  • Sixteen microsatellite markers (simple sequence repeat (SSR) markers) were employed to examine the genetic stability of 27 randomly chosen date palm (Phoenix dactylifera L.) plants produced through somatic embryogenesis with upto forty two in vitro subcultures. No microsatellite DNA variation was observed among all micropropagated plants. Our results indicate that the micropropagation protocol used for rapid in vitro multiplication is appropriate and suitable for clonal propagation of date palm and corroborated that somatic embryogenesis can also be used as one of the safe modes for production of true-to-type plants of date palm. This is the first report on the use of microsatellite DNA markers to establish the genetic stability in micropropagated date palm plants.

가상 디지털 키트를 이용한 웹기반 논리회로 가상실험시스템의 구현 (Implementation of a Web-based Virtual Laboratory System for Digital Logic Circuits Using Virtual Digital Kit)

  • 김동식;문일현;우상연
    • 컴퓨터교육학회논문지
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    • 제10권6호
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    • pp.11-18
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    • 2007
  • 본 논문에서 구현된 논리회로 가상실험실은 원리이해를 위한 개념학습실과 가상 디지털 키트에 의한 가상실험실의 두 단계로 설계하였다. 개념학습실에서 학습자는 디지털 논리회로에 대한 중요한 원리나 의미를 쉽게 이해할 수 있도록 하였다. 가상실험실에서는 가상 브레드보드에서 회로를 결선하여 입력전압을 인가하여 출력신호를 측정한 다음 가상실험데이터와 비교하여 서버로 전송한다. 가상실험실에서 수행된 모든 실험활동은 데이터베이스에 저장되어 개인정보와 함께 예비보고서의 형태로 제공되어 교수자는 학습자가 얼마나 회로동작에 대해 잘 이해하였는가를 점검할 수 있도록 하였다. 마지막으로 제안된 가상실험시스템의 유효성을 입증하기 위해 한 학기 동안 실험 중에 발생한 실제 장비의 파손율과 학생들의 성취도를 5개의 설문을 통해 조사하여 분석하였다.

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Characterization of Newcastle disease virus obtained from toco toucan

  • Li, Jiaxin;Ling, Mengmeng;Sun, Yixue;Di, Haiyang;Cong, Yulin;Yu, Haiying;Cong, Yanlong
    • Journal of Veterinary Science
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    • 제21권2호
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    • pp.19.1-19.10
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    • 2020
  • Given that the current Newcastle disease virus (NDV) infection in wild birds poses the threat to poultry, surveillance of Newcastle disease in captive wild birds was carried out in Jilin, China in 2018. Here, an NDV strain obtained from toco toucan was firstly characterized. The results showed that the F gene of the NDV isolate Toucan/China/3/2018 is classified as genotype II in class II. Sequence analysis of the F0 cleavage site was 113RQGR/L117, which supports the result of the intracerebral pathogenicity index assay indicating classification of the isolate as low-pathogenicity. Experimental infection demonstrated that Toucan/China/3/2018 can effectively replicate and transmit among chickens. To our knowledge, this is the first report on genetically and pathogenically characterizing NDV strain isolated from toucan, which enriches the epidemiological information of NDV in wild birds.

Idiopathic Ninth, Tenth, and Twelfth Cranial Nerve Palsy with Ipsilateral Headache: A Case Report

  • Sun, Seung-Ho
    • 대한약침학회지
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    • 제15권4호
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    • pp.66-71
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    • 2012
  • Objective: This case report is to report the effect of Korean traditional treatment for idiopathic ninth, tenth, and twelfth cranial nerve palsy with ipsilateral headache. Methods: The medical history and imaging and laboratory test of a 39-year-old man with cranial palsy were tested to identify the cause of disease. A 0.2-mL dosage of Hwangyeonhaedoktang pharmacopuncture was administered at CV23 and CV17, respectively. Acupuncture was applied at P06, Li05, TE05, and G37 on the right side of the body. Zhuapiandutongbang (左偏頭痛方) was administered at 30 minutes to 1 hour after mealtime three times a day. The symptoms were investigated using Visual Analogue Scale (VAS). Results: The results of magnetic resonance imaging (MRI), computed tomography (CT), and laboratory tests were normal. The medical history showed no trauma, other illnesses, family history of diseases, medications, smoking, drinking and so on. All symptoms disappeared at the 10th day of treatment. Conclusion: Korean traditional treatment such as acupuncture, pharmcopuncture, and herbal medicine for the treatment of ninth, tenth, and twelfth cranial nerve palsy of unknown origin is suggested to be effective even though this conclusion is based on a single.

비알코올성 지방간 환자의 간기능 개선 (A Case Report of a Non-Alcoholic Fatty Liver Disease Patient Treated With Chunggan-tang)

  • 권기현;오서혜;송금주;김상범;이형우;신현수
    • 대한한방내과학회지
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    • 제41권5호
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    • pp.740-744
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    • 2020
  • Objective: The aim of this study was to report on the effectiveness of Chunggan-tang in a patient with non-alcoholic fatty liver disease. Methods: A 57-year-old woman diagnosed with non-alcoholic fatty liver disease took Chunggan-tang from March 27. 2019 to April 3. 2019. We observed her laboratory findings. Results: After treatment, her laboratory findings showed a reduction in liver enzyme levels. Conclusion: This study shows that Chunggan-tang may be an effective treatment for non-alcoholic fatty liver disease.

Virus-associated Rhabdomyolysis in Children

  • You, Jihye;Lee, Jina;Park, Young Seo;Lee, Joo Hoon
    • Childhood Kidney Diseases
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    • 제21권2호
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    • pp.89-93
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    • 2017
  • Purpose: Virus-associated rhabdomyolysis is very rare. We report 15 patients with rhabdomyolysis caused by various viruses. Methods: Fifteen patients who were diagnosed with rhabdomyolysis and a viral infection were included in this study. Clinical, laboratory, and radiologic findings were evaluated through retrospective chart reviews. Results: Chief complaints were severe bilateral lower leg pain and leg weakness. The median age was 5.7 years. The male:female ratio was 2:5. The viral infections were caused by influenza virus B, parainfluenza virus, and rhinovirus. One patient with influenza virus B had coinfection with coronavirus. Median initial laboratory values and ranges were as follows: serum creatinine, 0.4 (0.1-0.5) mg/dL; serum aspartate transaminase, 124 (48-1,098) IU/L; serum alanine transaminase, 30 (16- 1,455) IU/L; serum creatine kinase, 2,965 (672-16,594) IU; serum lactate dehydrogenase, 400 (269-7,394) IU/L; serum myoglobin, 644 (314-3,867) ng/mL; urine myoglobin, 3 (3-10,431) ng/mL. All patients recovered without complications. Conclusion: This is the first report of the simultaneous occurrence of rhabdomyolysis caused by various viruses. This is also the first report of rhinovirus-associated rhabdomyolysis.

자리공 뿌리 섭취로 발생한 급성 중독 1례 : 증례보고 (Phytolacca Radix Poisoning: A Case Report)

  • 전천후;조충식
    • 대한한방내과학회지
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    • 제41권2호
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    • pp.241-247
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    • 2020
  • Objectives: This study aims to present the case of poisoning associated with Phytolacca radix. Case Presentation: A 61-year-old male with nausea, vomiting, dizziness, and abdominal pain after ingesting about 10 centimeters of Phytolacca radix visited Korean medicine hospital. He began to show symptoms one hour after eating the plants. Methods: The patient was diagnosed with poisoning by Phytolacca radix. The patient received acupuncture, moxibustion, and herbal medicine treatment including Glycyrrhizae radix. laboratory test including complete blood count, biochemistry was also conducted. Results: Treatment, including acupuncture, moxibustion, and herbal medicine, improved his symptoms. His symptoms subsided within two hours. The laboratory test conducted on the next day show a slight increase in his white blood cell, blood urea nitrogen, urine ketone levels. There was no damage to the liver or kidneys. Conclusions: This report demonstrates the need for caution when consuming wild plants, which could lead to serious adverse effects. Patients should be alerted to the indiscriminate ingestion of wild plants. Further research on how to treat poisoning in Korean medicine needs to be considered to confirm these findings.