• Title/Summary/Keyword: Case history

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Case History for Reduction of Shaft Vibration in a Steam Turbine

  • Kim, In Chul;Kim, Seung Bong;Jung, Jae Won;Kim, Seung Min
    • 유체기계공업학회:학술대회논문집
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    • 2001.11a
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    • pp.315-321
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    • 2001
  • The shaft system of turbine is composed of rotating shaft, blades, bearings which support the shaft, packing seal which prevent the leakage of steam, and couplings which connect the shaft. Shaft system component failure, incorrect assemblage or deflection by unexpected forces causes vibration problem. And every turbine has its own characteristics in dynamic response. In this paper we propose the three-bearing supported type rotor which is real equipment and being operated this time as commercial operation. From 1996 it has a high vibration problem and there are many kinds of trial to solve this problem. In resent outage we performed a special diagnosis and carried out appropriate work. We would like to introduce and explain about this case history.

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Necrotizing sialometaplasia of palate: a case report

  • Krishna, Sowmya;B.K., Ramnarayan
    • Imaging Science in Dentistry
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    • v.41 no.1
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    • pp.35-38
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    • 2011
  • Necrotizing sialometaplasia (NS) which mimics malignancy both clinically and histopathologically is an uncommon benign, self-limiting inflammatory disease of the mucus-secreting minor salivary glands. The lesion is believed to be the result of vascular ischemia that may be initiated by trauma. Till date, the diagnosis of NS remains a challenge. This report demonstrates a case of NS in a 73-year-old male patient who presented with an ulcerative lesion in his palate. He had a history of local trauma and was long-term user of salbutamol inhaler. An incisional biopsy was carried out and the diagnosis was established through history, clinical examination, histopathology using Hematoxylin and Eosin stain. The patient was given symptomatic treatment and the lesion healed in about 7 weeks.

A Case Report on Patient of Acute paralyic ileus with past history of mild depressive episode (급성 마비성 장폐색 환자 치험 1례)

  • Mok, Na-rae;An, Hun-Mo;Lee, Gi-Seung
    • Journal of Korean Medical Ki-Gong Academy
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    • v.13 no.1
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    • pp.19-35
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    • 2013
  • Objective : The purpose of this case is to report the improvement of a patient with acute paralytic ileus with past history of mild depressive episode after acupuncture therapy and herbal medicine. Methods : We treated the patient, who had acute abdominal pain and were diagnosed as paralytic ileus, with acupuncture, herbal medicine and manipulation therapy. We observed changes of chief symptoms and abdominal states. Results : We treated the patient who had severe abdominal pain, constipation and anorexia caused by acute paralytic ileus. For about one month of the treatment, we had the improvement of the symptoms. Conclusions : This study suggests that Conservative korean medical treatment might be useful for abdominal pain caused by acute paralytic ileus, and make a patient feel psychological stability.

A Study on the Formations and Compositions of the Cyber Museum -Focusing on the case of oversea natural history museum- (사이버 뮤지엄의 형식과 구성에 관한 고찰 -자연사 박물관 분야에 대한 해외사례를 중심으로-)

  • 임경부;임채진
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 1999.04a
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    • pp.7-10
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    • 1999
  • The organization of modern society is suddenly changing from the modern society to the ultra modern informationalized society. Various social members must satisfy cultural and artistic desires to serve museum concept and function to move the informationalized society. A lot of natural history museum in the world build cyber space exhibition lines. Audiences do not directly visit but they view but they view the exhibit, get an education, participate in the cultrue programs and earn the museum's informations. Especially, in the case of national and public museums in Korea, they do not concerned the museum architecture before processing the character and collections of the museum. Cyber museums determine museum character, policy, information, collections converge of opinion voluntary collection and grasp of location, because cyber museum can be finished be4fore the work of the future museum.

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A Life History and Hybridization of Antithamnion sparsum Tokida (Rhodophyta, Ceramiaceae) in Culture (홍조 Antithamnion sparsum Tokida의 생활사 및 교배에 관한 연구)

  • 부성민
    • Journal of Plant Biology
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    • v.26 no.3
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    • pp.141-150
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    • 1983
  • Antithamnion sparsum Tokida isolated from the southern and western coasts of Korea was investigated in culture, comparing the morphological character with A. defectum Kylin from the Pacific North America. A. sparsum basically showed a Polysiphonia-type life history. However, it sometimes exhibited a monoecious reproducton and the carpospores released from the cystocarp by self-fertilization unexpectedly developed into the plants bearing spermatangia alone. These male plants were not functional up to 60 days culture. The results of intraspecific crosses between populations of A. sparsum were positive and the hybrid carpospores gave rise to normal tetrasporophytes. On the other hand, theinterspecific crosses between A. sparsum and A. defectum were successful partly, evidenced by the gonimoblast development and the release of carpospores in case of A. sparsum (male)$\times$A. defectum (female), but not in case of A. sparsum (female)$\times$A. defectum (male). Thus, the both species were still under the speciation.

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Dental Treatment for a Patient with Seizure History and Intellectual Disability under General Anesthesia -A Case Report- (경련의 병력과 지적 장애를 가진 환자의 전신마취 하치과치료 치험례 -증례보고-)

  • Kong, Eun-Kyung;Jung, Young-Jung;Baek, Kwang-Woo
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.8 no.1
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    • pp.35-39
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    • 2008
  • Patients with seizures tend to demonstrate a poor oral condition and gingival hyperplasia due to some antiepileptic drugs. Although most patients attain good control of their seizures with anticonvulsant drugs, seizures can occur during dental treatment for various reasons. Sedation can be recommended for anxiety control, and general anesthesia should be considered for uncooperative patient such as patients with intellectual disability or autism. The purpose of this case report was to describe the dental treatment for a patient with seizure history and intellectual disability under general anesthesia.

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Airway anesthesia with lidocaine for general anesthesia without using neuromuscular blocking agents in a patient with a history of anaphylaxis to rocuronium: a case report

  • Ji, Sung-Mi;Song, Jaegyok;Choi, Gunhwa
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.20 no.3
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    • pp.173-178
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    • 2020
  • We experienced a case of induction of general anesthesia without using neuromuscular blocking agents (NMBAs) in a 40-year-old woman with a history of anaphylaxis immediately after the administration of anesthetics lidocaine, propofol, and rocuronium to perform endoscopic sinus surgery 2 years before. The skin test showed a positive reaction to rocuronium and cis-atracurium. We induced general anesthesia without using NMBAs after inducing airway anesthesia with lidocaine (transtracheal injection and superior laryngeal nerve block). Deep general anesthesia was maintained with end-tidal 4 vol% sevoflurane. Hypotension was treated with phenylephrine infusion. The operation condition was excellent, and patient recovered without complications after surgery. Airway anesthesia with local anesthetics may be helpful when we cannot use NMBAs for any reason, including hypersensitivity to NMBA and surgery that needs neuromuscular monitoring.

A rare case of abdominal adenoid basal cell carcinoma in a patient with a history of radiation therapy

  • Kim, Ji Hun;Kim, Sun Eung;Cheon, Young Woo
    • Archives of Plastic Surgery
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    • v.47 no.1
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    • pp.78-82
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    • 2020
  • Basal cell carcinoma (BCC) is the most common skin cancer and its incidence is steadily increasing. Prior radiation therapy is one of the most important risk factors for BCC. Although the mechanism remains undefined, long-term studies have shown that people exposed to radiation have an increased risk of BCC. Despite the fact that BCC occurs most frequently in sun-exposed areas of the body, patients with a history of radiation therapy have an increased risk of BCC in areas previously exposed to radiation. Here, we report a case of adenoid BCC on the abdomen in a 67-year-old woman after radiation therapy post-hysterectomy.

Effect of Pre-strain on the Bauschinger Phenomenon of Micro-Alloying Forging Steel (비조질강의 바우싱거 효과에 미치는 변형율 영향)

  • Kwon Y.-N.;Lee Y. S.;Kim S. W.;Lee J. H.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2005.05a
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    • pp.313-316
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    • 2005
  • In the present study, Bauschinger effect was investigated for the micro-alloying forging steel which has been developed for about 30 years ago to save energy consumption by eliminating the heat treatment processes in the forging industry. The micro-alloying steels used fur cold forging industry mainly aim to replace the usual carbon steel. With the conventional carbon steels, all the deformation history can be eliminated after the final heat treatment(quenching and tempering). In the case of micro-alloying forging steels, however, the prior deformation history should be taken into consideration to meet the mechanical property requirement since the microstructure of micro-alloying steels might exhibit the Bauschinger effect, which was not needed to consider in the case of conventional carbon steel having quenching and tempering treatment. In the present study, the reverse loading tests were carried out to determine the Bauschinger effect of micro-alloying steel which composed of ferrite and cementite phases.

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A Case of Sparganosis in the Chest Wall (흉벽에 발생한 Sparganosis;1례 보고)

  • 김상익
    • Journal of Chest Surgery
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    • v.25 no.11
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    • pp.1240-1244
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    • 1992
  • Human sparganosis caused by Sparganum mansoni, the larval plerocercoid worm of the genus Spirometra, is not uncommon in Korea and is mostly found in subcutaneous or adipose tissue of the abdominal, thoracic wall and inguinal region, but is rarely found in the orbital cavity, brain and breast. It, at present, is a surgical disease because its diagnosis depends almost on the demonstration of the larva[e] from lesion or finding the worm section in surgical pathology specimens. We experienced a case of human sparganosis from a 48 years old woman who had a history of eating a raw frog. We report the case and review the related literatures.

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