• Title/Summary/Keyword: 유상채

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스마트 공장 국제 및 국내 표준화 동향

  • Kim, Yong-Un;Jeong, Sang-Jin;Yu, Sang-Geun;Cha, Seok-Geun
    • Information and Communications Magazine
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    • v.33 no.1
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    • pp.30-36
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    • 2015
  • 본 고에서는 제조업 혁신을 위한 국가 정책적 대응이 진행 중에 있어 스마트 공장에 대한 국제 및 국내 표준화 동향을 소개하도록 한다. 스마트 공장에 관련된 핵심 용어들이 의미 정의가 되지 않은 채 쓰이고 있기에 혼동을 주고 있어 현황에 대해서도 설명하도록 하고, 스마트 공장에 대해 ISO와 IEC에 진행되고 있는 국제 표준화 현황과 국가기술표준원과 TTA를 통해 진행되고 있는 국내 표준화 현황도 함께 소개하도록 한다.

Apoptotic Effects of Curcumin on the Epstein-Barr Virus-Transformed Human B Lymphoma Cells Activated by PWM (Curcumin이 PWM에 의해 활성화된 Epstein-Barr 바이러스 변형 사람 B 림프종 세포의 사멸에 미치는 효과)

  • Ryu, Sang-Chae;Lee, Jang-Suk;Chong, Myong-Soo;Lee, Ki-Nam
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.3
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    • pp.287-292
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    • 2012
  • The results of this study intended to clarify the apoptotic effects of curcumin on Epstein-Barr virus transformed human B lymphoma (EBV-B) cells are summarized as follows: It was found that curcumin induced endoplasmic reticulum(ER) stress as well as apoptotic cell death in EBV-B cells, although the magnitude of action was insignificant. When EBV-B cells activated by pokeweed mitogen (PWM) were treated with the same concentrations of curcumin, it was found that higher ER stress (GRP78, P-PERK, XBP-1, ATF6, and CHOP expressed) increased unfold protein response (UPR) and thus, apoptosis attributed to ER stress, compared to non-activated EBV-B cells In conclusion, it is expected that curcumin will play an important role for leukemia treatment.

Research on Technique of Gold Powder Painting and Conservation Process for White Porcelain Bottle with Phoenix and Peony Design Poly Chrome (백자채색봉황모란문병 보존처리와 금채장식 기법 연구)

  • Lee, Dahae;Hwang, Hyunsung
    • Conservation Science in Museum
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    • v.12
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    • pp.25-34
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    • 2011
  • This study examined conservation process of white porcelain bottle with phoenix and peony design poly chrome, recovery of golden powder painted porcelain being damaged and colored, and recovery material and conservation methods by using a variety of experiments. Not only traditional method but also modern method can recover golden powder painted area being damaged and/or peel off, and suitable recovery was found out by using experiments. The golden powder paint of pattern edge was recovered not by traditional method but by modern method of golden powder paint with acrylic paint and binder.

Nano $MgB_2$ Powder Synthesis by Spray Pyrolysis Method (분무열분해법에 의한 나노 $MgB_2$ 분말 제조 연구)

  • Ko Jae Woong;Yoo Jai Moo;Kim Young Kuk;Chung Kuk Chae;Yoo Sang lm;Han Bong Soo;Kim Young Jun
    • Progress in Superconductivity and Cryogenics
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    • v.7 no.1
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    • pp.1-4
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    • 2005
  • Nano- sized spherical $MgB_2$ Powders were synthesized by spray Pyrolysis method. The Influence of solution concentration and furnace reaction temperature on morphology and average particle size were investigated. For adequate preparation conditions, it has mostly spherical, solid and narrow particle size distribution. Average particle size$(X_{50})$ distribution was below 100 nm. The critical temperature for the synthesized $MgB_2$ was around 36K.

Acaricide Resistance in Field-Collected Populations of Tetranychus kanzawai(Acarina: Tetranychidae) (차응애 야외개체군의 살비제 저항성)

  • 김상수;유상선;백채훈
    • Korean journal of applied entomology
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    • v.37 no.2
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    • pp.207-212
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    • 1998
  • Tea field-collected populations of the tea red spider mite (Tetranychus kazawai Kishida) from five different locations in the southern region of Korea were assessed for resistance to seven acaricides using leaf spray method. There were considerable differences in susceptibility depending on the tested acaricides and the location from which the population was collected. The populations showing high resistance ratio of more than 20 with respect to certain acaricide were as follows: the Sungjun and Cheju populations to azocyclotin, tebufenpyrad, fenpyroximate, pyridaben, propargite, and fenpropathrin; the Haenam population to propargite and fenpyroximate; the Bosung population to propargite; the Youngam population to pyridaben. Therefore, the use of other alternative acaricides against the Sungjun and Cheju populations is needed. However, careful selection of the appropriate acaricide against the Haenam, Bosung and Youngam populations of the tea red spider mite might be maintained in effective control.

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Effects of Dislocation Distribution and Carbon Effective Diffusion on Strain Aging Behavior of a Low Carbon Dual Phase Steel (저탄소 Dual Phase강의 가공시효에 미치는 탄소유효확산 및 전위분포의 영향)

  • Yoo, S.H.;Jung, K.C.;Hong, K.H.;Park, KT.
    • Transactions of Materials Processing
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    • v.30 no.5
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    • pp.226-235
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    • 2021
  • The strain aging behavior of a low carbon dual phase steel was examined in two conditions: representing room temperature strain aging (100 ℃ × 1 hr after 7.5 % prestrain) and bake hardening process (170 ℃ × 20 min after 2 % prestrain), basing on carbon effective diffusion and dislocation distribution. The first principle calculations revealed that (Mn or Cr)-vacancy-C complexes exhibit the strongest attractive interaction compared to other complexes, therefore, act as strong trapping sites for carbon. For room temperature strain aging condition, the carbon effective diffusion distance is smaller than the dislocation distance in the high dislocation density region near ferrite/martensite interfaces as well as ferrite interior considering the carbon trapping effect of the (Mn or Cr)-vacancy-C complexes, implying ineffective Cottrell atmosphere formation. Under bake hardening condition, the carbon effective diffusion distance is larger compared to the dislocation distance in both regions. Therefore, formation of the Cottrell atmosphere is relatively easy resulting in to a relatively large increase in yield strength under bake hardening condition.

Fabrication of $MgB_2$ tape with metal powder addition (금속분말이 첨가된 $MgB_2$ 선재의 제조 및 특성)

  • Ko, Jae-Woong;Yoo, Jai-Moo;Kim, Young-Kuk;Chung, Kook-Chae;Yoo, Sang-Im;Wang, Xio Lin;Dou, Shi Xue
    • Progress in Superconductivity and Cryogenics
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    • v.8 no.1
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    • pp.1-4
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    • 2006
  • The $MgB_2$ tapes with several metal powder addition were fabricated by PIT method with or without heat treatment. The $J_c$ value of $5.600A/cm^2$ and $16.000A/cm^2$ at 4.2 K and 5 T were obtained for the $MgB_2$ tape and 10 vol % of Cu added $MgB_2$ tape without heat treatment respectively. The $J_c$ value of $8.000A/cm^2$ and $35,000A/cm^2$ at 4.2 K and 5 T were obtained for the $MgB_2$ tape and 10 vol. % of Al added $MgB_2$ tape with heat treatment, respectively. The $J_c-B$ curve shows enhancement in $J_c$ under magnetic field. which suggests enhancement in workability and grain connectivity with several metal powder addition.

The Research on the Painted Lead Glaze Pottery in the Northern Qi Dynasty in China (중국 북제(北齊) 채회유도(彩繪釉陶) 시론)

  • Kim, Ji-Hyun
    • Korean Journal of Heritage: History & Science
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    • v.50 no.4
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    • pp.20-37
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    • 2017
  • It is called the "Painted lead glaze pottery" that is painted green, brown, yellow over white or light yellow glazed base among glazed pottery in the Northern Qi Dynasty. Even though the white glazed pot painted green with three ears and the yellow glazed jar painted green with long neck is found in the Fan-cui Tomb in Honghetun Village, Anyang City, Henan Province in 1971, these potteries were not focused in academic circles. While the white glazed pottery found with them was thought as the earliest evidence of the white porcelain that the date is clear, it has constantly been discussed so far. In this paper, focused on the painted lead glaze pottery, the materials from tombs and kiln sites are organized, and based on them, the decoration feature and production technique is analyzed. The emergence time of this pottery is checked by the date of tombs and the social value of this pottery is considered by the position of the buried person. The painted lead glaze pottery of the Northern Qi Dynasty has independent character such as porcelain clay, twice firing burning and painting technique over glazed base. This character emerged from several glazed potteries in the Northern Wei Dynasty and it continued to the Northern Qi Dynasty. At last, the white painted lead glazed pottery appeared. The painted lead glaze pottery was formed by the combination of a shape of the ceramic in Southern China and painting technique after the Northern Wei Dynasty in Northern China.

Validity of Korean Version of the Mini-International Neuropsychiatric Interview (한국판 Mini International Neuropsychiatric Interview 타당도 연구)

  • Yoo, Sang-Woo;Kim, Young-Shin;Noh, Joo-Sun;Oh, Kang-Seob;Kim, Chan-Hyung;NamKoong, Kee;Chae, Jeong-Ho;Lee, Gi-Chul;Jeon, Seong-Ill;Min, Kyung-Jun;Oh, Dong-Jae;Joo, Eun-Jung;Park, Hyun-Ju;Choi, Young-Hee;Kim, Se-Joo
    • Anxiety and mood
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    • v.2 no.1
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    • pp.50-55
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    • 2006
  • Objectives : In the psychiatry, structured interview is very important tool to be used in epidemiological or psychopharmacological studies. However, investigators often find that the administration of comprehensive diagnostic interviews is time-consuming and expensive to be used in clinical or research settings. Considering these points, Sheehan and his colleagues developed MINI (Mini International Neuropsychiatric Interview) to meet the need for a brief, reliable, and valid structured diagnostic interview for psychiatric disorders. The MINI has been translated into many languages and used in many countries. Therefore, we translated the MINI into Korean and determined its validity in this study. Methods : Twohundred seventy patients and normal subjects participated in the validation of the MINI versus an expert's professional opinion. Schizophrenia and other psychotic disorders, mood disorders including major depressive disorder and bipolar disorder, anxiety disorders including panic and other phobic disorders, and alcohol dependence were included in this study. The validity was obtained by examination whether MINI based diagnoses were compatible with diagnoses by expert psychiatrists. Results : The range of Kappa values was 0.22 (somatoform disorder) to 0.93 (bipolar disorder - past). Overall agreement between MINI and expert's diagnoses were good. The Kappa values for anxiety disorders seemed to be higher than those for other disorders. Conclusion : The MINI Korean version has the good validity. It also has potential applications as a diagnostic tool for psychiatric disorders.

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상한(傷寒) 의학사(醫學史)에 관(關)한 연구(硏究) (III) - 상한학파(傷寒學派)의 형성과 발전시기(명${\sim}$청)(明${\sim}$淸)를 중심으로 -

  • Kim Gi-Uk;Park Hyeon-Guk;Jeong Seong-Chae
    • Journal of Korean Medical classics
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    • v.13 no.1
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    • pp.146-183
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    • 2000
  • 통과이상적연구(通過以上的硏究), 장상한학술적성숙기(將傷寒學術的成熟期), 칙지명대여청대관여상한의학사적내용정리(則至明代與淸代關與傷寒醫學史的內容整理) 여하(如下). 1. 명청시대적시대배경사상한학적내용갱풍부(明淸時代的時代背景使傷寒學的內容更豊富), 촉진상한학술적발전(促進傷寒學術的發展) 병차출현료흔다관여상한적저작(幷且出現了?多關與傷寒的著作), 단실제상야출현료상한론내용적중복여지론술일반부분(但實際上也出現了傷寒論內容的重複與只論述一般部分), 혹저자립안조잡적처방지폐단(或著者立案粗雜的處方之弊端). 차기우출현각종상한학파적리유(此期又出現各種傷寒學派的理由), 시인위당시류행적사조(是因爲當時流行的思潮), 칙정주리학적영향여명대문단부고(則程朱理學的影響與明代文壇復古), 의고적추향(擬古的趨向), 환유금원시대적백가쟁오등(還有金元時代的百家爭嗚等), 성료형성상한학파적기초(成了形成傷寒學派的基礎). 2. 위료불실거상한론적본래의식(爲了不失去傷寒論的本來意識), 주장정리화고정원문회부왕숙화이전모양적착간중정파시왕안도기료개단(主張整理和考訂原文恢復王叔和以前模樣的錯簡重訂派是王安道起了開端), 방유집확대료기의식(方有執擴大了其意識). 유창여침명종시대표저학파학자(喩昌與沈明宗是代表這學派學者), 장로(張?) 정응모(程應?) 주양준(周揚俊) 오겸등수료저학설(吳謙等隨了這學說). 3. 주장(主張)'존왕(尊王)(숙화(叔和))찬성(贊成)(무기(无己))'적유호구론파(的維護舊論派), 주장료불능수변개상한론삼음삼양편적배렬여순서(主張了不能隨變改傷寒論三陰三陽篇的排列與順序), 문자(文字), 구문(句文), 문장(文章), 고세식(高世?), 진념조등인(陳念祖等人). 4. 주장상한론적정수재어변증론치(主張傷寒論的精髓在於辨證論治), 선우운용칙능득상한핵심리론적학파시변증론치학파(善于運用則能得傷寒核心理論的學派是辨證論治學派). 저학파분사개계통(這學派分四?系統), 이처방수집증상적의가유허굉(以處方收集證狀的醫家有許宏), 가금(柯琴), 서대춘(徐大椿); 이치법수집증상적의가유오인구(以治法收集證狀的醫家有吳人駒), 우이(尤怡); 이분유륙경찰증상적의가유진념조(以分有六經察證狀的醫家有陳念祖), 포성(包誠); 이증상분류증후적의가유류순(以證狀分類證候的醫家有劉純), 왕긍당(王肯堂), 진지정(秦之楨), 침금오등인(沈金鰲等人). 5. 회통파유량종류형(?通派有兩種類型), 일시수통상한여온병적학파(一是誰通傷寒與溫病的學派), 간칭회통파(簡稱?通派), 대표의가유도화(代表醫家有陶華), 오정(吳貞), 유근초등인(兪根初等人), 령일개유회통중의여서의적립장상해석상한적의가당종해(?一?有?通中醫與西醫的立場上解釋傷寒的醫家唐宗海). 6. 경전학파시이상한론위보귀적경전래인식(經典學派是以傷寒論爲保貴的經典來認識), 병차지유숭상차경여사상적학파(幷且持有崇尙此經與思想的學派), 차리분량개편우원문적고증래연구적경전고증파(此里分兩?偏于原文的考證來硏究的經典考證派), 화인위지유상한론(和認爲只有傷寒論), 재능총괄치료외감병(才能總括治療外感病), 부정온병학설병배척적경전림상파(否定溫病學說幷排斥的經典臨床派).

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