• 제목/요약/키워드: DI&C

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문학을 통한 고향으로의 귀환 - 피에르 안토니오 콰란톳티 감비니(Pier Antonio Quarantotti Gambini)와 트리에스테(Trieste), 그리고 이스트리아(Istria)- (Ritorno attraverso la letteratura)

  • 김희정
    • 이탈리아어문학
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    • 제29호
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    • pp.161-187
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    • 2010
  • Per discuteretrattare la problematica concernente un significato intimamente legato a Istria(ora è ilsuolo sloveno ) e a Trieste(ora è il suolo italinao) - quello di ≪frontiera≫, assieme alla ≪cultura e letteratura di frontiera≫ - si dovrebbe fare un'incursione nella storia. In un'altra relazione, analizzando il particolare inserimento di queste città adriatiche nella dinamica fluttuante del rapporto fra centro e provincia nello spazio mitteleuropeo, abbiamo accennato al fatto che, alla fine della prima guerra mondiale, Trieste diventa un centro periferico, situato all'estremo confine orientale d'Italia, in altre parole, una vera e propria ≪città di frontiera≫. E Istria è uno stato dell'Europa centrale confinante ad ovest con l'Italia, percui In Slovenia c'è una comunità autoctona italiana nella parte istriana. Vera "città invisibil" nella topografia del Novecento, Trieste ed Istria ebbero in sorte, negli anni che precedettero la Grande Guerra e la sua (per certi aspetti esizale) annessione all'Italia, un manipolo invidiabile di cantori. Il mito storiografico di una " letteratura triestina" sembrano dovuti, fatte salve le necessarie e risapute considerazioni cronlogiche e ambientali, a una straordinaria intuizione collettva. Più sospettiamo in loro la lucida consapevoleza dell'enorme potenzialità spirituale che scaturisce dalle condizioni materiali: dal determinato assetto di un paesaggio umano, razzi, momenti, e mile compresi. È stato forse proprio Pietro Antonio Gambini a spiegare meglio di chiunque altro questa originalissima configurazione dell'intelligenza e della fantasia in quella Rosa rossa. Il saggio esamina il rapporto di Antonio Gambini con la 'letteratura treistina' e con la movimentata attività letteraria di ≪Solaria≫. Si focalizza l'attenzione con il primo romanzo di Gambini La rosa rossa che rappresenta un omaggio al mondo istriano della sua adolescenza alla base della l'assimilazione di un ambiente cosmopolita a una parlata e a una cultura, nella fattispecie la parlata veneta dei commerci e la cultura.

Di-mon교배법에 의하여 육성한 표고 신품종 "산림7호"의 특성 (Characteristics of New Shiitake Strain "Sanlim No. 7" Produced by Di-mon Hybridization Method)

  • 박원철;이봉훈;가강현
    • 한국균학회지
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    • 제38권1호
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    • pp.25-28
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    • 2010
  • Di-mon 교잡에 의해 만들어진 표고품종 산림7호를 원목 재배한 결과, 1년 중 가을발생이 가장 많았으며, 생표고용으로 적합하였다. 발생된 버섯은 평반구형이며, 갓의 직경은 47mm 정도 되었다. 주름살 측면은 평활형이며, 폭은 좁았다. 버섯발 이온도는 평균 $11{\sim}23^{\circ}C$였고, 산발발생하는 경향이 있었다. 그리고 4년간 생산된 버섯량은 골목 1본당 약 1.4 kg이었다.

Analysis of Minor Additives and Polymer in Used-stripper Using Pyrolysis-Gas Chromatography/Mass Spectrometry and Electrospray Mass Spectrometry

  • Koo, Jeong-Boon;Park, Chang-Hyun;Han, Cheol;Na, Yun-Cheol
    • Bulletin of the Korean Chemical Society
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    • 제30권2호
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    • pp.368-372
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    • 2009
  • The trace polymer and additives in used stripper solutions were analyzed by a combination of Py-GC/MS and ESI-MS. In the comparison of the pyrolysates produced by the pyrolysis of the pure stripper and photoresist at $500{^{\circ}C}$, the presence of novolac polymer in the used stripper was confirmed by the presence of the characteristic peaks of its pyrolysates, such as those of the methylphenol, di-methylphenol and methylenebis(methylphenol) isomers. The intact trace polymer was measured by ESI-MS, which showed the distribution of oligomers at intervals of 120 Da, indicating di-methylphenol to be the repeat unit. Additional MS/MS measurements demonstrated that the end group is methylphenol and the repeat groups are di-methylphenol. Some modified oligomers caused by the methylation or di-methylation of the repeat unit were also identified. Although the polymer is only present at a trace level in the used stripper, these combined analytical methods provided the means to qualify the stripper solution through the identification and structural determination of the polymer.

Synthesis of Novel Polyurethanes Containing Tricyanocyclopropyl Group as a Piezoelectric Chromophore and Their Properties

  • 이주연;박은주
    • Bulletin of the Korean Chemical Society
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    • 제22권7호
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    • pp.753-757
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    • 2001
  • 1-(2'2'3'-Tricyano-3-carbomethoxycyclopropyl)-34-di-(2'-hydroxyethoxy)benzene, (4) was prepared by the reaction of bromomalononitrile with methyl 3,4-di-(2'-hydroxyethoxy)benzylidenecyanoacetate (3). Diol 4 was condensed with tolylene-2,4-diisocyanate, 3,3'-dimethoxy-4,4'-biphenylenediisocyanate, and 1,6-hexamethylenediisocyanate to yield polyurethanes 5, 6, and 7 containing tricyanocyclopropane functionalities in the pendant group. The resulting polymers 5-7 were soluble in common organic solvents and the inherent viscosities were in the range of 0.25-0.30 dL/g. Polyurethanes 5-7 showed a thermal stability up to 300 $^{\circ}C$ in TGA thermograms. Solution-cast films showed Tg values in the range of 100-125 $^{\circ}C$ and piezoelectric coeffcients (d31) of the poled polymer films were 1.3-2.0 pC/N, which are acceptable for piezoelectric device applications.

편백잎추출수의 실내 가습시 휘발성유기화합물 방출 특성 (Emission Characteristics of Volatile Organic Compounds by Humidifier with Using Hinoki Cypress Extracts)

  • 이민;박상범;이상민;이희영;길덕한
    • Journal of the Korean Wood Science and Technology
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    • 제42권6호
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    • pp.747-757
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    • 2014
  • 건축재료와 생활용품으로부터 방출되는 실내공기 오염물질들로 인한 피해가 증가하고 있는 현시점에서 친환경 제품에 대한 관심이 높아지고 있다. 이러한 관심 속에 피톤치드에 대한 효능이 알려지면서 다양한 방법으로 사용되고 있다. 피톤치드를 다량 함유한 편백잎 증류추출수의 가습시 발생하는 휘발성유기화합물의 방출특성을 GC-MS를 이용하여 그 효과를 조사하였다. 편백잎추출수 가습시 115종의 화합물이 검출되었다. 검출된 화합물들은 aromatic compound, terpenoid, alkane, ketone, ester, aldehyde, alcohol, acid, miscellaneous compound류로 분류하였으며 aromatic compound류(13종, 38%)와 terpenoid류(23종, 33%) 화합물이 다른 화합물류에 비해 높은 비율로 검출되었다. Aromatic compound류 경우 편백잎추출수에 의한 추가 화합물은 검출되지 않아 그 영향이 없는 것으로 판단되며, terpenoid류 경우 편백잎추출수 가습시 10% 정도 증가하였고 7종의 화합물이 추가로 검출되었다. 편백잎추출수 가습시 방출된 terpenoid류 화합물들은 항균, 방충, 방부 효력뿐만 아니라 항고혈압성과 항암에 효과가 있는 것으로 알려져 있어 건강에 도움을 줄 것으로 판단된다.

PARTIAL OXIDATION OF PROPANE ON NAFION SUPPORTED CATALYTIC MEMBRANE

  • F. Frusteri;C. Espro;F. Arena;F. Arena;E. Passalacqua;A.Patti;A. Parmaliana
    • 한국막학회:학술대회논문집
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    • 한국막학회 1999년도 The 7th Summer Workshop of the Membrane Society of Korea
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    • pp.55-58
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    • 1999
  • Nafion supported catalytic membranes were found to be active, stable and selective in th partial oxidation of propane to oxygenates with H2O2 under mild condition. Addition of Fe2+ in liquid phase enhances the reaction rate. Reaction proceeds according to a radical mechanism based on th electrophilic activation of propane on superacid sites and subsequent reaction of the activated paraffin with OH radicals. The use of a catalytic membrane, which allow separation of the intermediate products from the liquid phase containing the oxidant, was found to be effective to perform selective partial oxidation of propane with high yields to oxygenated products.

Pb-Acetato Complexes의 이온强度 및 溫度 變化에 따른 安定度常數에 關한 考察 (The Stability Constants of Lead Acetato Complexes as Function of Temperature and Ionic Strength)

  • 황정의;전영주
    • 대한화학회지
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    • 제11권2호
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    • pp.63-69
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    • 1967
  • NaAc와 HAc로 된 緩衝溶液에서 납의 mono di, tri, Acetato Complexes의 安定度常數를 이온强度 2.00, 1.00, 0.75, 그리고 溫度 $150^{\circ}C$, $20^{\circ}C$, $25^{\circ}C$, $35^{\circ}C$에서 Leden의 電位測定法으로 測定하고, $15^{\circ}C$에서는 Hume과 DeFord의 Polarographie Method로서도, 아울러 測定比較하였다. 安定度常數(Kijk)와 이온强度(${\mu}j$), 그리고 溫度(Tk) 사이에 다음과 같은 關係가 있음을 알았다. log Kijk = (Ai/${\mu}j^3$+ Bi) / Tk + Ci/${\mu}j^3$ + Di

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Development and Validation of HPLC-PDA Method and Pattern Recognition Analyses Using Eight Marker Compounds for the Quality Control Between the Seeds of Cuscuta chinensis Lam. and Cuscuta japonica Choisy

  • Nguyen, Duc Hung;Zhao, Bing Tian;Le, Duc Dat;Ma, Eun Sook;Min, Byung Sun;Woo, Mi Hee
    • Natural Product Sciences
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    • 제25권4호
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    • pp.334-340
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    • 2019
  • Cuscuta chinensis Lam. and Cuscuta japonica Choisy are parasitic plants. C. chinensis seeds were traditionally used for treatment of kidney and liver deficiencies. C. japonica seeds were used as tonic medicine to improve liver function and strengthen kidneys, treatment of high blood pressure, chronic diarrhea, and sore eyes. Cuscutae Semen are seeds of only C. chinensis in Korean Herbal Pharmacopoeia (K.H.P.). The developed HPLC-PDA method easily, accurately, and sensitively quantified using eight marker compounds [hyperoside (1), astragalin, (2), quercetin (3), kaempferol (4), chlorogenic acid (5), 3,4-di-O-caffeoylquinic acid (6), 1,5-di-O-caffeoylquinic acid (7), and 4,5-di-O-caffeoylquinic acid (8)]. In addition, the method may be used to distinguish seeds between C. chinensis Lam. and C. japonica Choisy. Furthermore, the result from the current study was applied to clarify samples between steam processed and unprocessed samples of C. chinensis by pattern analysis.

Copolymerization of 4′-vinylbenzo-15-crown-5 with Di(ethylene glycol) Ethyl Ether Acrylate

  • Jin, Long Yi;Mah, Soukil
    • Fibers and Polymers
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    • 제3권2호
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    • pp.49-54
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    • 2002
  • Radical copolymerization behavior of 4'-vinylbenzo-15-crown-5, a vinyl monomer having a pendant 15-membared crown ether unit (VCE) with di(ethylene glycol) ethyl ether acrylate (DEGEEA) was carried out in toluene solution using 2,2-azobisisobutyronitrile (AIBN) as an initiator. The copolymers were characterized by means of FT-IR, $^1{H-NMR}$, and $^{13}{C-NMR}$ . The reactivity ratio of VCE and DEGEEA, determined by Fineman-Ross and Kelen-Tudos method, gave values 0.55 for VCE, and 0.11 for DEGEEA respectively.