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Magnetic field Reduction characteristics of shielding wear for a worker by using AC Arc welder. (교류 아크용접기를 사용하는 작업자의 차폐복 자계저감 특성검토)

  • Park, Jun-Hyeong;Min, Suk-Won
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.1343-1344
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    • 2008
  • This paper analyses current densities induced inside a worker using AC arc welder when he wears a protective cloth. Applying the boundary element method, we calculate current densities induced in organs inside a worker in case he was located at 1[cm], 15[cm], 20[cm] far from a power cable of AC arc welder. As results of study, we find a maximum current density induced in all organs may be lower than 10[$mA/cm^2$] if he wears a protective cloth. We also know high permeability materials can lower current density more than high conductivity materials.

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The effect of Yim Eon Kook's medical theroy on his future generations (임언국(任彦國)의 의론이 후대에 미친 영향 - 『치종비방(治腫秘方)』과 『의림촬요(醫林撮要)』 『동의보감(東醫寶鑑)』 『전원필고(田園必考)』 『침구경험방(鍼灸經驗方)』 『의휘(宜彙)』 『치종방』 『침구집성(鍼灸集成)』을 중심으로-)

  • Seo, Ji Youn;Kim, Nam Il
    • The Journal of Korean Medical History
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    • v.20 no.2
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    • pp.34-41
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    • 2007
  • Yim Eon Kook was deeply involved in founding Chijongcheong(national tumor medical clinic), a government branch in charge of treating tumors mid-Chosun dynasty. He came to be famous nationwide for curing tumors well and when the royal family was notified of this, they founded the Chijongcheong to supply professional health care. He wrote books on treating tumors such as "chijongjinam" and contributed significantly to the advancement of the tumor treating during his times. He also influenced the development and advancement of tumor-related treatments in late-Chosun as well.

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Delayed treatment-free response after romiplostim discontinuation in pediatric chronic immune thrombocytopenia

  • Lim, Hyun Ji;Lim, Young Tae;Hah, Jeong Ok;Lee, Jae Min
    • Journal of Yeungnam Medical Science
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    • v.38 no.2
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    • pp.165-168
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    • 2021
  • We report the case of a 16-month-old patient with chronic immune thrombocytopenia (ITP) patient who experienced delayed treatment-free response (TFR) after romiplostim treatment. He received intravenous immunoglobulin every month to maintain a platelet count above 20,000/µL for 2 years. Thereafter, he received rituximab and cyclosporine as second-line therapy, with no response, followed by romiplostim. After 4 weeks of treatment, the platelet count was maintained above 50,000/µL. Following 7 months of treatment, he discontinued romiplostim, and the platelet count decreased. His platelet counts remained above 50,000/µL, without any bleeding symptoms, 2 years after romiplostim discontinuation. This is the first report of TFR after romiplostim treatment in pediatric chronic ITP.

The review of Aesthetic Eye for Chusa, Kim jeong hee's calligraphy arts- Especially, Focused on the spirituality of literati paintings (추사(秋史) 서예술(書藝術)의 심미안(審美眼) 연구(硏究)- 특(特)히 문인화(文人畵) 정신성(精神性)을 중심(中心)으로)

  • Kwon, Yun Hee
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.3
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    • pp.283-291
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    • 2020
  • Chusa is a pearl in our cultural history. His unfavorable times and circumstances made him more and more devoted, and through this, his art was able to bloom brilliantly. He was born and raised in a prestigious family, and was able to establish his academic world broadly through the encounter with Ongbanggang and Wanwon, the great masters of the Qing Dynasty culture at the time of the 20s. Particularly, his artistic activities in the area where he lived in exile allowed him to establish Chusache. He also showed the essence of his literary spirit as a picture of Sehando. Through numerous letters, he can also examine his culture, art, and thought. Furthermore, based on the archaeology of the Qing Dynasty, you can also examine the thoughts and philosophies of the real world. This article intends to examine and review the Aesthetic Sense of Chusa's literary art in terms of mentality through Sehando·Bujakrando. This is because it is judged to be an aesthetic sense that is the essence of Chusa art.

A Study on the Sijo of Da-seuck Ryu Yeung-mo (다석 유영모의 시조 연구)

  • Park Kyu-hong
    • Sijohaknonchong
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    • v.22
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    • pp.5-25
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    • 2005
  • The purpose of this study is to show Da-seuck(다석) and his Sip those were never introduced to the academic world of Korean literature yet. Daseuck who kept company with Yook-dang(육당) and Chun-won(춘원) was a great philosopher of religion. He had ranged over world wide philosophy and founded his own angle of view to God. He had written diary in which many Sijo Poems more than 2,200 were written for 20 years from 1955 to 1974. The special features of his Sijo and the historical meanings are: First, Daseuck had written the most numerous Sijo Poems in number. Second, one of the special features of his Sijo is that most of his Sijo Poems contains his own ideas of God that is caused by his religious belief and his angle of view to Sijo. Third, his poetic words are too difficult to understand because he had used Korean old language that he understand them peculiarly.

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Gastro-Cavenous Fistula Developed after Esophagectomy(Ivor Lewis Operation) Due to Active Gastric Ulcer in Esophageal Cancer (식도암 환자에서 식도암적출술후 활동성 위궤양에 의해 발생한 위-공동 누공)

  • 김성철;심영목;김관민;김진국
    • Journal of Chest Surgery
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    • v.32 no.1
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    • pp.49-52
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    • 1999
  • A 58-year-old male patient visited our hospital for epigastric discomfort and dysphagia which had developed 5 months earlier. He was diagnosed with esophageal cancer at the mid-thoracic level based on radiologic, endoscopic, and histologic examinations. An esophagectomy(Ivor Lewis technique) was done to treat the esophageal cancer. He was doing well until the 20th postoperative day when he began to complain of cough, sputum, fever and chills, Subsequently, thereafter, abdominal pain and generalized abdominal tenderness developed on the 22nd postoperative day. Upon gastrofiberscopy and esophagographic examinations, he was diagnosed with gastrobronchial fistula and an emergency operation was performed. On operative findings, the gastric fundus was perforated and directly connected to the abscessed cavity of the right upper lobe due to a gastric ulcer. We, herewith, report this case after review of the literature.

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Anticancer Effects of Curcuma C20-Dialdehyde against Colon and Cervical Cancer Cell Lines

  • Chaithongyot, Supattra;Asgar, Ali;Senawong, Gulsiri;Yowapuy, Anongnat;Lattmann, Eric;Sattayasai, Nison;Senawong, Thanaset
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6513-6519
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    • 2015
  • Background: Recent attention on chemotherapeutic intervention against cancer has been focused on discovering and developing phytochemicals as anticancer agents with improved efficacy, low drug resistance and toxicity, low cost and limited adverse side effects. In this study, we investigated the effects of Curcuma C20-dialdehyde on growth, apoptosis and cell cycle arrest in colon and cervical cancer cell lines. Materials and Methods: Antiproliferative, apoptosis induction, and cell cycle arrest activities of Curcuma C20-dialdehyde were determined by WST cell proliferation assay, flow cytometric Alexa fluor 488-annexin V/propidium iodide (PI) staining and PI staining, respectively. Results: Curcuma C20 dialdehyde suppressed the proliferation of HCT116, HT29 and HeLa cells, with IC50 values of $65.4{\pm}1.74{\mu}g/ml$, $58.4{\pm}5.20{\mu}g/ml$ and $72.0{\pm}0.03{\mu}g/ml$, respectively, with 72 h exposure. Flow cytometric analysis revealed that percentages of early apoptotic cells increased in a dose-dependent manner upon exposure to Curcuma C20-dialdehyde. Furthermore, exposure to lower concentrations of this compound significantly induced cell cycle arrest at G1 phase for both HCT116 and HT29 cells, while higher concentrations increased sub-G1 populations. However, the concentrations used in this study could not induce cell cycle arrest but rather induced apoptotic cell death in HeLa cells. Conclusions: Our findings suggest that the phytochemical Curcuma C20-dialdehyde may be a potential antineoplastic agent for colon and cervical cancer chemotherapy and/or chemoprevention. Further studies are needed to characterize the drug target or mode of action of the Curcuma C20-dialdehyde as an anticancer agent.

Reduction Gas and Chemical Additive Effects on the MOCVD Copper Films Deposited From (hfac)Cu(1,5-DMCOD) as a Precursor ((hfac)Cu(1,5-DMCOD) 전구체를 이용한 MOCVD Cu 증착 특성에 미치는 환원기체와 첨가제의 영향에 관한 연구)

  • Byeon, In-Jae;Seo, Beom-Seok;Yang, Hui-Jeong;Lee, Won-Hui;Lee, Jae-Gap
    • Korean Journal of Materials Research
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    • v.11 no.1
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    • pp.20-26
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    • 2001
  • The deposition characteristics of MOCVO Cu using the (hfac)Cu(I) (1,5-DMCOD)(1,1,1,5,5,5-hexafluoro-2,4-pentanedionato Cu(I) 1,5-dimethyl-cyclooctadine) as a precursor have been investigated in terms of the effects of hydrogen and H(hfac) ligand addition with He carrier gas. MOCVD Cu using a Helium carrier gas showed a low deposition rate (20~$125{\AA}/min$) at the substrate temperature range of 180~$230^{\circ}C$. Moreover, the Cu film deposited at 19$0^{\circ}C$ was very thin (~$700{\AA}$) and showed the lowest resistivity value of $2.8{\mu}{\Omega}-cm$. The deposition rate of MOCVD Cu using $H_2$or H(hfac) addition was significantly enhanced especially at the low temperature region (180~$190^{\circ}C$). Furthermore, thinner Cu films (~$500{\AA}$) provided low resistivity (3.6~$2.86{\mu}{\Omega}-cm$). From surface reflectance measurement, very thin films deposited by using different gas system revealed good surface morphology comparable with sputtered Cu film ($300^{\circ}C$, vacuum-anneal). Hence, Cu film using (hfac)Cu(1,5-DMCOD) as a precursor is expected as a good seed layer in the electrochemical deposition process for Cu metallization.

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The Research of Wang HaoGu's Eum Syndrom Theory (왕호고(王好古)의 음증학설(陰證學說)에 대한 연구(硏究))

  • Cho, Byung-Il;Kim, Yong-Jin
    • Journal of Korean Medical classics
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    • v.20 no.2
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    • pp.125-135
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    • 2007
  • Eum Syndrom include symptoms which is because by the cold thingsand by the infection of SamEum of TaeEum, SoEum, GualEum in Treatise On Exogenous Febrile Diseases(傷寒論). After Wang HoGo, many medical people had proceed the research of Eum Syndrom, but recently, we have almost never or no nothing research about that. So, I want to make modern base of Eum syndrom, and researched mainly for the "YinZhengLueLi". That can be summarized like below. Eum Syndrom shows firstly red face, tremor, waist-and-leg heaviness, lastly body heaviness, fatigue, narcolepsy, congestion of the pupils because of from exogenous attack of wind-cold, impairment of spleen due to Cold things, and dew and mist and rain and damp's invation by mouth and nose, greedy of sexual desire, So, in the diagnosis of Eum Syndrom, we have to look over precisely the color and pulse, especially, by pulse. We can know that, he used the prescription which are have heating kidney function, Byuklyuksan, Jungyangsan, Huahamsan, Huiyangdan, Baneumdan etc, and the prescription which are have strengthening spleen and kidney, Bujasan, Yukgyesan, Bakchulsan etc. So, we can know that he was very interested in deficiency and cold of kidney's function. While, he newly made the prescriptions of Sinchultang, Bakchultang, Huanggitang, Jujunghuan, and he used various prescriptions.

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