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      • SCISCIESCOPUS

        Vapor phase deoxygenation of heptanoic acid over silica-supported palladium and palladium-tin catalysts

        Kaylor, Nicholas,Xie, Jiahan,Kim, Yong-Su,Pham, Hien N.,Datye, Abhaya K.,Lee, Yong-Kul,Davis, Robert J. Elsevier 2016 Journal of catalysis Vol.344 No.-

        <P><B>Abstract</B></P> <P>Silica-supported Pd and PdSn catalysts were prepared by ion exchange or incipient wetness impregnation and characterized with H<SUB>2</SUB> chemisorption, X-ray diffraction, in situ Sn K-edge X-ray absorption near edge structure (XANES), and scanning transmission electron microscopy. The activity of the catalysts was evaluated in the deoxygenation of vapor-phase heptanoic acid at 0.1MPa and 573K. A Pd catalyst synthesized via ion exchange formed nanoparticles of 1.1±0.4nm and was more stable in heptanoic acid conversion compared to a Pd catalyst synthesized via incipient wetness impregnation having nanoparticles of 2.4±0.5nm. The addition of Sn to a Pd catalyst by either co-impregnation of precursors or physical mixing of supported monometallic catalysts improved the overall catalyst stability. Moreover, Sn addition expanded the reaction network from primarily decarbonylation over Pd to include dehydration and decarboxylative ketonization over PdSn. Electron microscopy confirmed the physical migration of Sn during catalytic reaction. In situ XANES analysis during the deoxygenation of a carboxylic acid suggests that partially reduced SnO<SUB>x</SUB> is the active Sn phase associated with Pd nanoparticles under reaction conditions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Initial decarbonylation rate is inversely correlated to Pd catalyst stability. </LI> <LI> Adding Sn to a Pd/SiO<SUB>2</SUB> catalyst promotes the stable conversion of heptanoic acid. </LI> <LI> Dehydration and decarbonylation are the primary reactions over PdSn/SiO<SUB>2</SUB>. </LI> <LI> Sn migrates to Pd when contacted by vapor-phase heptanoic acid. </LI> <LI> Partially-reduced SnO<SUB>x</SUB> is the promoting species associated with Pd in PdSn catalysts. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

      • Holding the Center : Chaucer's Book of Troilus and Dante's Commedia

        Kaylor, Noel Harold 한국중세영문학회 2000 중세영문학 Vol.8 No.-

        Two major influences on the structure of Chaucer's Book Troilus are Dante's Commedia and Boethius's Consolation of Philosophy. The Commedia begins significantly with the word midway, and it is precisely midway through the work that Dante, the Pilgrim, initiates a discussion on the causes of vice. He learns that it is Love that lies behind both vice and virtue, each being but a different manifestation of love. Natural love causes human beings to love; rational love, however, allows love to the either noble or ignoble. The first verses of Chaucer's Troilus direct the reader's attention away from the center, characterized as wele, and toward wo-or being out of joie. Troilus reaches the nadir of his happiness in Book Three of the work, but dead center in that Book Three, the find the verse: "d the bistowed in so heigh a place." It contains the image of the Wheel of Fortune, set at the point from which oかy decline is possible. It is from Book Three that Troilus's fortunes change for the worse. After making mutual pledges of trouthe, Troilus's love develops toward deeper levels of fidelity, but Criseyde's develops toward betrayal. The plot-line that Chaucer borrows for his Book of Troilus comes from Boccaccio's Ⅱ Filostrato, but the elements out of which the adds his own significance to that plot derive from structures and arguments borrowed from Dante and Boethius. The evidence cited above indicates that some of these borrowings converge at the center of the Troilus: the midway importance in Dante (with its discussion of love leading to diametrically differing ends) and the Wheel importance in Boethius (with the necessity of a downward turn of fortune after one reaches the apex of one's good fortune).

      • KCI등재

        The Influence of the Writings of T. S. Eliot upon the English Language Writings of Professor Insoo Lee

        Kaylor, Noel Harold 한국T.S.엘리엇학회 2013 T.S. 엘리엇 연구 Vol.23 No.2

        Among twentieth-century Korean writings in English, those of Professor Insoo Lee are singularly impressive for their particular combination of wit, well-reasoned argument, and mastery of subtitles of English idiom at all levels. The importance of T. S. Eliot as perhaps the most influential English or American poet of the twentieth century is established. Professor Lee is, of course, well known as the translator of Eliot’s The Waste Land into Korean. His rendering of the defining poem of the first half of the twentieth century stands today as a monument in the history of Korean translation. Eliot had influenced the works contained in the volume Inside Cloud Cuckoo Land: The Voice of Korea, containing the collected essays, translations, and journalistic articles produced by Professor Lee. Each also was a force for assuming personal moral responsibility in an age defined by warfare, by the trauma resulting from warfare and destruction: the period of World War I and II and the challenges of the subsequent so-called Cold War, and by a general moral lassitude in the era. The English language writings of Professor Lee attest not only the general influence of the era in which Eliot wrote, they also reveal some of the themes and turns of phrase that characterize the writings of Eliot.

      • KCI등재

        Cosmos and Eros: Boethius's Cosmology and Post-CopernicanDiscoveries

        Noel Harold Kaylor,Jr.,Govind Menon 한국중세근세영문학회 2005 중세르네상스 영문학 Vol.13 No.1

        Many studies exist in which the sources of Boethius's scientific understanding of the cosmos are examined. This study reverses that perspective by examining Boethius's scientific understanding as it presages the cosmological observations and theories of Copernicus, Newton, and Einstein. This paper will show that Boethius shares a geometric understanding of the cosmos with Copernicus and Einstein, and that he shares a view of universal gravitation with Newton. It is in the area of gravitation that Boethius adds an element of Eros [actually Amor] to his cosmology. In general, the study indicates that Boethius thought in categories similar to those of Copernicus, Newton, and Einstein, but that the technological observations available to him were not yet so advanced as those available to the other thinkers.

      • KCI등재

        Paradigms of Consciousness in T. S. Eliot’sThe Waste Land and The Cocktail Party

        Noel Harold Kaylor, Jr. 한국T.S.엘리엇학회 2015 T.S. 엘리엇 연구 Vol.25 No.3

        In The Waste Land and The Cocktail Party, T. S. Eliot considers the possibilities and the limitations of religious methods or paradigms (Christian, Hindu, Buddhist) to achieve self-actualization, in the former, and the possibilities and the limitations of a secular method or paradigm (psychology or psychoanalysis), in the latter. Each work approaches a point from which Eliot’s consideration could pass from a purely rational into a mystical realm, but, as in his essay “Tradition and the Individual Talent,” he does not cross the line of demarcation. It is Eliot’s restraint that leads the imagination of his reader to the “overwhelming question” that the reader must ponder and answer.

      • KCI등재
      • SCOPUSKCI등재

        Using Tobit Regression Analysis to Further Understand the Association of Youth Alcohol Problems with Depression and Parental Factors among Korean Adolescent Females

        Delva, Jorge,Grogan-Kaylor, Andrew,Steinhoff, Emily,Shin, Dong-Eok,Siefert, Kristine The Korean Society for Preventive Medicine 2007 예방의학회지 Vol.40 No.2

        Objectives : This study characterized the extent to which youth depressive symptoms, parental alcohol problems, and parental drinking account for differences in alcohol-related problems among a large sample of adolescent females. Methods : The stratified sample consists of 2077 adolescent females from twelve female-only high schools located in a large metropolitan city in the Republic of Korea. Students completed a questionnaire about alcohol use and alcohol problems, their parents' alcohol problems, and a number of risk and protective factors. Data were analyzed using tobit regression analyses to better characterize the associations among variables. Results : Almost two-thirds of students who consume alcohol had experienced at least one to two alcohol-related problems in their lives and 54.6% reported at least one current symptom of depression, with nearly one-third reporting two depressive symptoms. Two-thirds of the students indicated that at least one parent had an alcohol-related problem, and that approximately 29% had experienced several problems. Results of tobit regression analyses indicate that youth alcohol-related problems are positively associated with depressive symptoms (p<0.01) and parent drinking problems (p<0.05). Parental drinking is no longer significant when the variable parental attention is added to the model. Decomposition of the tobit parameters shows that for every unit of increase in depressive symptoms and in parent drinking problems, the probability of a youth experiencing alcohol problems increases by 6% and 1%, respectively. For every unit of increase in parental attention, the probability of youth experiencing drinking problems decreases by 5%. Conclusions : This study presents evidence that alcohol-related problems and depressive symptoms are highly prevalent among adolescent females. Although a comprehensive public health approach is needed to address drinking and mental health problems, different interventions are needed to target factors associated with initiation of alcohol problems and those associated with increased alcohol problems among those who already began experiencing such problems.

      • The Early Education of Queen Elizabeth I and Her Later Translation of Boethius's De Consolatione Philosophiae

        Jackson, John Morris,Kaylor, Noel Harold Jr. 중세영문학연구회 2002 중세영문학 Vol.10 No.2

        At Windsor, Queen Elizabeth I translated Boethius's De Consolatione Philosophiae into English in 1593. She appears to have worked with great speed and relative accuracy, which attests to her command of Latin. This paper considers her early education as informative, both on the classical authors in whose works she had long been steeped and on the methodology that is evident in the translation made in her sixtieth year. Primarily under Roger Ascham's direction, Elizabeth was presented texts that would encourage her use of "e purest diction,"upply her with superior values and perspectives, and endow her with the moral fortitude required in a monarch. The selected texts included those by Cicero, Demonsthenes, Isocrates, Sophocles, Livy, and mostly likely Boethius, whom Ascham cited as a touchstone of his own educational values. It was by instruction in Ascham's "uble translation"ethod, which he described in his The Scholemaster, that Elizabeth acquired her profound command of written and spoken Latin. By his own description, this method entails translating a classical text first into English and then, after a time, translating that English back into the original language of the text. This practice cultivates a literalness in the rendering of a text into English and also a gravitation toward, wherever possible, the use of cognates. An examination of Elizabeth's 1593 translation of the Consolation of Philosophy indicates that the queen continued to benefit from her childhood instruction even to the end of her long and glorious reign.

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