• Title/Summary/Keyword: AmBe

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A Study on the Possibility of Pattern Design Using CAD System (With concentration on the change of coat basic pattern) (CAD System을 이용한 패턴디자인설계 활용가능성에 관한 연구(I)-Coat 원형을 중심으로-)

  • 김옥경
    • Journal of the Korean Society of Costume
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    • v.20
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    • pp.49-62
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    • 1993
  • The purpose of this research was to utilize of Pattern Design System(P.D.S) by using AM-300 The conclusion were like these : 1. A coat of basic pattern was selected by design sketch. 2. The basic pattern was input into computer by digitizing. 3. The basic pattern was change into designed shape by using various skills. This system were enabled to draw straight lines, curves, delete lines, sections of lines, extend lines, cut pattern into sections, measure line or section reproduce whole pattern shape of section, rotate and mirror pattern and complete patterns. 4. Automatic grading of finished master pattern have been developed by creation and modification of grading rules of basic pattern. 5. Production pattern added seam allowance, not-ches was generated by P.D.S menu option. 6. Finished pattern design was plotted out 100% and 20% size by AM-300 Plotter. This results will be the basic materials to develop the CAD SYSTEM if some problems were improve. Furthermore, the utilization of P.D.S is expected to be developing in pattern making process.

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The clinical study on the cased of Herpes Zoster Treated with Korean Oriental Medicine (대상포진 치험 증례 임상보고)

  • Kim, Seong-Wook
    • Journal of Pharmacopuncture
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    • v.4 no.2
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    • pp.73-86
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    • 2001
  • Objective : These case study were made to evaluate and observe the treatment for the Herpes-Zoster through the korean oriental medicine. Method : Clinical observation and analysis about 4 cases of Herpes-zoster including the Ramsay's-hunt syndrome had been done the patients of the Sang-Ji Oriental Medicine Hospital. These cases were mainly treated with oriental medicine using the Herb medication, Korean Bee-Venom therapy, Acupuncture and Electro-acupuncture therapy. Acupuncture technic was mainly used Sa-Am acupuncture(Four needle technique). Result : After treatment, all of cases were completely cured without any complication. Conclusion : Based on the clinical results, Korean Oriental Medicine is believed to be effective for treating Herpes-zoster, and further studies should be conducted to provide more valuable information.

Molecular Nodeling of Complexation of Alkyl Ammonium Ions by p-tert-Butylcalix[4]crown-6-ether

  • Choe, Jong In;Kim, Gwang Ho;Jang, Seok Gyu
    • Bulletin of the Korean Chemical Society
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    • v.21 no.5
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    • pp.465-470
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    • 2000
  • The conformations and energies of p-tert-butylcalix[4] crown-6-ether (1) and its alkyl ammonium complexes have been simulated by AM1 semi-empirical quantum mechanics and molecular mechanics calculations using a variety of forcefields (MM2, MM+, CVFF). We performed molecular dynamics calculations to simulate the behavior of these coplexes primartily focusing on the three representative conformations (cone, partial cone, 1,3-alternate) of host molecule 1. When we performed AM1 semi-empirical and molecular mechanics calculations, the one conformation was generally found to be most stable for all the employed calculation methods. The primary binding site of host 1 for the recognition of alkyl ammonium guests was confirmed to be the central part of the crown moiety. The complexation enthalpy calculations revealed that the alkyl amonium cations having smaller and linear alkyl group showed the better complexation efficiencies when combined with p-tert-butylcalix[4]crown-6-ether, that is in satisfactory agreement with the experimental results.

Status Quo of Powder Bed Fusion Metal Additive Manufacturing Technologies (Powder Bed Fusion 방식 금속 적층 제조 방식 기술 분석)

  • Hwang, In-Seok;Shin, Chang-Seop
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.21 no.7
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    • pp.10-20
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    • 2022
  • Recently, metal additive manufacturing (AM) is being investigated as a new manufacturing technology. In metal AM, powder bed fusion (PBF) is a promising technology that can be used to manufacture small and complex metallic components by selectively fusing each powder layer using an energy source such as laser or an electron beam. PBF includes selective laser melting (SLM) and electron beam melting (EBM). SLM uses high power-density laser to melt and fuse metal powders. EBM is similar to SLM but melts metals using an electron beam. When these processes are applied, the mechanical properties and microstructures change due to the many parameters involved. Therefore, this study is conducted to investigate the effects of the parameters on the mechanical properties and microstructures such that the processes can be performed more economically and efficiently.

Development of the Bubble-Damage Polymer Detector for Neutron Dosimetry (중성자 선량측정을 위한 Bubble-Damage Polymer Detector의 개발)

  • Kang, Y.H.;Hong, U.;Kim, D.S.
    • Journal of Radiation Protection and Research
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    • v.13 no.1
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    • pp.1-7
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    • 1988
  • A bubble-damage polymer detector, which operation principles are based on vaporization of superheated liquid drops by interaction with radiations, is developed for neutron dosimetry. The detectors are fabricated by dispersing the superheated liquid drops of Freon12 into transparent and elastic polymer made of acylamide and glycerine. The bubbles formed by neutron irradiation are immediately visible. The neutron sensitivity of the detectors is 4-7 bubbles/10$\mu$ Sv for Am-Be neutrons.

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Case Series of Advanced Non-Small Cell Lung Cancer Patients Treated with Hang-Am Plus (진행성 비소세포성 폐암환자에 대한 항암플러스의 치료효능 : 연속증례보고)

  • Zheng, Hong-Mei;Yoon, Jeung-Won;Lee, Yeon-Weol;Cho, Chong-Kwan;Oh, Dal-Seok;Yoo, Hwa-Seung
    • The Journal of Internal Korean Medicine
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    • v.32 no.1
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    • pp.113-120
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    • 2011
  • Objectives : A case series was conducted to investigate the therapeutic effects of Hang-Am Plus (HAP) on the tumor response and HRQoL (Health Related Quality of Life) in advanced non-small cell lung cancer (NSCLC) patients. Methods : Three patients were given 1,000-2,000 mg of HAP, three times a day (daily total dosage of 3,000-6,000 mg/day) for 12 weeks. Results : After the 3 month administration with HAP, three patients showed stable disease (SD) condition according to the chest computed tomography (CT), and two of the patients reported a decrease in pain levels. Conclusions : The observed NSCLC cases suggest treatment with HAP may be related to the observed tumor growth inhibition and pain reduction.

Case Series of Advanced or Metastatic Gallbladder Cancer Patients Treated with Hang-Am-Dan (항암단 투여로 호전된 진행성 또는 전이성 담낭암 연속환자증례)

  • Kim, Kyung-Soon;Yoo, Hwa-Seung;Jung, Tae-Young;Lee, Yeon-Weol;Cho, Chong-Kwan
    • The Journal of Internal Korean Medicine
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    • v.31 no.3
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    • pp.667-674
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    • 2010
  • Objective : To investigate the therapeutic effects of Hang-Am-Dan(HAD) on gallbladder cancer patients. Method : We prescribed HAD three times a day(3,000-6,000 mg/day) during a treatment period of 8 and 34 months respectively. Computed tomography(CT) was taken to evaluate the therapeutic efficacy. Results : Two patients diagnosed with gallbladder cancer were recommended to go through chemotherapy. However, they refused the standard regimen due to their old age and the fear of side effects, and chose to go with Oriental medicine treatments instead. The patients were treated for 8 and 34 months respectively. Each patient showed stable disease(SD) state during the treatment period. Conclusion : According to these cases, it could be concluded that HAD may offer potential benefits in treating gallbladder cancer patients.

Determination of Acrylamide in Foods by Solid Phase Microextraction-Gas Chromatography

  • Chen, Liangbi;Liu, Haizhu;Yu, Ping;Zhao, Jinyun;Chen, Xi
    • Food Science and Biotechnology
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    • v.18 no.4
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    • pp.895-899
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    • 2009
  • A new approach for the determination of acrylamide (AM) in foods by solid phase microextraction-gas chromatography (SPME-GC) was established. AM was bromized and transformed to 2-bromoacrylamide (2-BAM). 2-BAM was then extracted by a commercial SPME fiber, $75-{\mu}m$ Car/PDMS fiber, for GC detection. The influence of extraction and desorption parameters such as extraction temperature and time, stirring rate, desorption temperature, and time were studied and optimized. The mass concentration was proportional to the peak area of 2-BPA from 1.0 to 8,000 ${\mu}g/L$. The detection limit of the SPME-GC for 2-BAM was found to be 0.1 ${\mu}g/L$, and the recoveries and relative standard deviations for different food samples were 74.5 to 102.0%, and 4.2 to 9.1%, respectively. The presented method was applied to the determination of AM in fried foods.

Influence of Arbuscular Mycorrhizal Fungus and Kinetin on the Response of Mungbean Plants to Irrigation by Seawater

  • Rabie, G.H.
    • Mycobiology
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    • v.32 no.2
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    • pp.79-87
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    • 2004
  • An experiment was carried out to investigate the effects of pre-inoculation with the mycorrhizal fungus Glomus clarum and foliar application of kinetin on the growth of mungbean plant irrigated wht different dilution of seawater. Arbuscular-mycorrhizal(AM) infection significantly increased dry weight, height, chlorophyll, sugar and protein content, nitrogen and phosphorus-use efficiencies, leaf conductivity, transpiration rate, nitrogenase, acid and alkaline phosphates activities of all salinized mungbean plants in comparison with control and non-mycorrhizal plants irrespective of the presence or absence of kinetin. Mycorrrhizal plants showed higher concentrations of N, P, K, Ca and Mg and lower Na/N, Na/P, Na/K, Na/Ca and Na/Mg ratios than non-mycorrhizal plants when irrigated with certain dilution of seawater. Mungbean plants showed 597% and 770% dependency on AM fungus G. clarum in absence and presence of kinetin, respectively, for biomass production under a level of 30% of seawater. The average value of tolerance index for mycorrhizal plants accounted 267% and 364% in absence and presence kinetin respectively. This study provides evidence for the benefits of kinetin which are actually known for mycorrhizal than non-mycorrhzal plants. AM fungus and kinetin protected the host plants against the detrimental effects of salt. However, mycorrhizal infection was much more effective than kinetin applications. Thus management applications of this arbuscular mycorrhizal endophyte(G. clarum) with kinetin could be of importance in using seawater in certain dilution for irrigation in agriculture.

Optimization of a-IGZO Thin-Film Transistors for OLED Applications

  • Chung, Hyun-Joong;Yang, Hui-Won;Kim, Min-Kyu;Jeong, Jong-Han;Ahn, Tae-Kyung;Kim, Kwang-Suk;Kim, Eun-Hyun;Kim, Sung-Ho;Im, Jang-Soon;Choi, Jong-Hyun;Park, Jin-Seong;Jeong, Jae-Kyeong;Mo, Yeon-Gon;Kim, Hye-Dong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1097-1100
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    • 2008
  • We demonstrate that the performance of amorphous indium-gallium-zinc-oxide (IGZO) thin-film transistors (TFT) can be optimized by controlling the interfaces between IGZO and sandwiching insulators and by proper deposition of IGZO layer. Specifically, contact and channel resistances are decreased by reducing IGZO bulk resistance and optimizing dry-etch process, respectively. Field-effect mobility ($\mu_{FE}$) and subthreshold gate swing (S) are further enhanced by fine-tuning IGZO deposition condition.

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