Thematic Routes of the Thyssen-Bornemisza Collection
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A Preliminary Study on the Interfacial Strength of Red Abalone
University of Vermont ScholarWorks @ UVM Graduate College Dissertations and Theses Dissertations and Theses 2016 A Preliminary Study On The nI terfacial Strength Of Red Abalone Saleh Jaman Alghamdi University of Vermont Follow this and additional works at: https://scholarworks.uvm.edu/graddis Part of the Civil Engineering Commons Recommended Citation Alghamdi, Saleh Jaman, "A Preliminary Study On The nI terfacial Strength Of Red Abalone" (2016). Graduate College Dissertations and Theses. 633. https://scholarworks.uvm.edu/graddis/633 This Thesis is brought to you for free and open access by the Dissertations and Theses at ScholarWorks @ UVM. It has been accepted for inclusion in Graduate College Dissertations and Theses by an authorized administrator of ScholarWorks @ UVM. For more information, please contact [email protected]. A PRELIMINARY STUDY ON THE INTERFACIAL STRENGTH OF RED ABALONE A Thesis Presented by Saleh J Alghamdi to The Faculty of the Graduate College of The University of Vermont In Partial Fulfillment of the Requirements for the Degree of Master of Science Specializing in Civil Engineering October, 2016 Defense Date: June 14, 2016 Thesis Examination Committee: Ting Tan, Ph.D, Advisor Jie Yang, Ph.D., Chairperson George Pinder, Ph.D. Cynthia J. Forehand, Ph.D., Dean of the Graduate College Abstract Nacre is a hierarchical material found within the tough shells of red abalone. Despite being composed of calcium carbonate, nacre exhibits remarkable mechanical properties resulting from the nanoscale brick-and-mortar structure made from aragonite polygons. The objective of this research is to elucidate the toughening mechanisms associated with the interfacial resistance of red abalone. -
Pearls and Organic Gemstones
Pearls and Organic Gemstones INTRODUCTION Pearls were probably the first discovered gems of significance. Because they need no cutting or treatment to enhance their beauty and are rare natural occurrences, they have most likely always been highly esteemed. Organic gemstones are anything created by living processes. We have looked at amber in the past, but bone, teeth (such as ivory), and shells all have some value and are used today as gemstones. Pearls in General A pearl is grown by a mollusk (a bivalve such as a clam, oyster, or mussel or snail [single shell = valve]) in response to an irritant. Bivalves (two shelled mollusks) that secrete pearls live in both fresh‐ and saltwater. The irritant in most cases is a parasite (though it could be a grain of sand or other object). The parasite, a worm or other creature, is walled off by a secretion of calcium carbonate and protein. The calcium carbonate is the same as the inorganic material that makes stalactites in caves, and the protein is called conchiolin. The combination of these two substances (calcium carbonate and protein) makes the pearl's nacre (Nacre is also called mother of pearl). The nacre is a lustrous deposit around the irritant and forms concentric layers (overlapping circles). Many concentric layers of nacre build up over a period of a few years creating a pearl. The internal pattern is much like that seen in a jawbreaker. The layers create a sheen or luster that has iridescence and is described as both pearly luster and if colors of the rainbow are present, the pearl's orient. -
Colored Gemstones Cultured Pearls
Cultured Pearls Colored Gemstones Diamond Council of America ©2016 Cultured Pearls In This Lesson: •A World Apart • Pearl Traditions • Natural Pearls • Cultured Pearls •Value Factors •Product Highlights • Culturing Sales A WORLD APART In Lesson 1 you learned that any kind of gem except diamond is considered a colored gem. Although pearls are included in that broad classification, they really belong to a world apart. Most customers recognize this instinctively, sensing a special appeal about pearls. There are several themes you can use in a sales presenta- tion to evoke or enhance pearl’s separate place in the gem kingdom: • Pearls are born in water. This intuitive contrast with other gems, which are dug from the ground, gives pearls an aura of gentleness, freshness, and fluid grace. • Pearls originate from life. While most gems are minerals produced by inanimate geology, pearls are organic. They come from living beings. Much of pearls’ mystique arises from this connection. • Pearls possess a beauty that’s all their own. Most gems depend on cutting or carving to reveal their charms, but pearls emerge gleaming from their shells. Cultured pearls are born in water and originate from living organisms. They Though certain factors of pearl value are comparable are natural in their beauty and classic to those of other gems, key considerations are unique. as a gem. Colored Gemstones 5 1 Cultured Pearls Cultured pearls are modern forms of a classic gem. They ® combine Nature’s creative power with human art and JA SPC SKILLS If you’re participating in the JA® science. You could even say that cultured pearls show how Sales Professional Certification people can work with the environment to make age-old Program™, this lesson presents infor- mation related to the following Skill beauty available now, and for future generations as well. -
Does Abalone Nacre Form by Heteroepitaxial Nucleation Or by Growth Through Mineral Bridges?
Chem. Mater. 1997, 9, 1731-1740 1731 Does Abalone Nacre Form by Heteroepitaxial Nucleation or by Growth through Mineral Bridges? Tilman E. Scha¨ffer,*,† Cristian Ionescu-Zanetti,†,⊥ Roger Proksch,† Monika Fritz,†,‡ Deron A. Walters,† Nils Almqvist,†,| Charlotte M. Zaremba,§,⊥ Angela M. Belcher,‡,§ Bettye L. Smith,†,⊥ Galen D. Stucky,§,⊥ Daniel E. Morse,‡,⊥ and Paul K. Hansma†,⊥ Department of Physics, University of California, Santa Barbara, California 93106; Marine Biotechnology Center and Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106; Department of Chemistry, University of California, Santa Barbara, California 93106; Materials Research Laboratory, University of California, Santa Barbara, California 93106; and Department of Physics, Luleå University of Technology, S-97187 Luleå, Sweden Received August 12, 1996. Revised Manuscript Received June 10, 1997X We present experimental support for a model of abalone nacre growth that is based on mineral bridges between successive aragonite tablets rather than on heteroepitaxial nucleation. Interlamellar sheets of organic polymers delineate the aragonite tablets but allow the tablets to grow mineral bridges through pores in the sheets. Atomic force microscope images of interlamellar organic sheets from flat pearls made by Haliotis rufescens (red abalone; marine gastropod mollusk) reveal a fibrous core and holes of 5-50 nm in diameter. Scanning ion conductance microscopy shows that these holes are actually pores through the interlamellar sheets. With the help of statistical analysis we can associate the pore-to-pore spacings in the interlamellar sheets with the observed offsets of successive nacre tablets. These results, supplemented by AFM, SEM, and TEM images, support and extend the model of biofabrication of gastropod nacre which is based on mineral bridges between the aragonite tablets. -
DIAMOND Natural Colorless Type Iab Diamond with Silicon-Vacancy
Editors Thomas M. Moses | Shane F. McClure DIAMOND logical and spectroscopic features con- Natural Colorless Type IaB firmed the diamond’s natural origin, – Diamond with Silicon-Vacancy despite the occurrence of [Si-V] emis- Defect Center sions. No treatment was detected. Examination of this stone indicated The silicon-vacancy defect, or [Si-V]–, that the [Si-V]– defect can occur, albeit is one of the most important features rarely, in multiple types of natural dia- in identifying CVD synthetic dia- monds. Therefore, all properties should monds. It can be effectively detected be carefully examined in reaching a using laser photoluminescence tech- conclusion when [Si-V]– is present. nology to reveal sharp doublet emis- sions at 736.6 and 736.9 nm. This Carmen “Wai Kar” Lo defect is extremely rare in natural dia- monds (C.M. Breeding and W. Wang, “Occurrence of the Si-V defect center Figure 1. Emissions from the Screening of Small Yellow Melee for in natural colorless gem diamonds,” silicon-vacancy defect at 736.6 and Treatment and Synthetics Diamond and Related Materials, Vol. 736.9 nm were detected in this Diamond treatment and synthesis 17, No. 7–10, pp. 1335–1344) and has 0.40 ct type IaB natural diamond. have undergone significant develop- been detected in very few natural type ments in the last decade. During this IIa and IaAB diamonds over the past showed blue fluorescence with natural time, the trade has grown increasingly several years. diamond growth patterns. These gemo- concerned about the mixing of treated Recently, a 0.40 ct round brilliant diamond with D color and VS2 clarity (figure 1) was submitted to the Hong Figure 2. -
PDF Red List of Colombian Cultural Objects at Risk
RED LIST OF COLOMBIAN CULTURAL OBJECTS AT RISK BIAN T OF COLOM D LIS T RISK RE OBJECTS A CULTURAL S T E Illegal excavationL of archIaeological sites ( guaquería ) severs the connection between an object and its context, preventing properG identificEation of the Rartefact aOnd diminiUshing its cultural meaning. As a result, the scientific study of looted sites is very limited since information essential for reconstructing ways of life has been destroyed. Thefts from museums, churches, libraries and archives irreparably damage the integrity of Three thousand pre-Columbian items seized in 2004, collections, leaving gaps that distort the historical by the Administrative Department of Security, record. from a U.S. trafficker living in Colombia. © Instituto Colombiano de Antropología e Historia (ICANH) Colombia’s National Campaign against Illicit Trafficking in Cultural Property seeks to protect Colombian heritage from such criminal acts, implementing its strategies through national and international agreements. It provides both courses and on-line training dedicated to spreading knowledge about movable cultural heritage, and to enhancing its appreciation, conservation and use. It also aims to strengthen legislation, and to publish guides, posters and informative brochures. ICOM contributes to these efforts with this Red List . If you suspect that a cultural object from Colombia may be stolen, looted or illegally exported, please contact: Ministry of Culture, Ministry of Foreign Affairs, National Police, Cultural Heritage Directorate of Heritage -
Wood Curriculum Vitae May 2016
Christopher Stewart WOOD Professor and Chair, Department of German, New York University (Affiliated Faculty, Department of Comparative Literature) 19 University Place New York, NY 10003 email: [email protected] tel 212-998-8650 CURRICULUM VITAE (May 2016) Academic degrees and study 1979-1983 Harvard College A.B. magna cum laude in History and Literature 1983-1985 Ludwig-Maximilians-Universität, Munich three semesters in degree program in art history 1984-1991 Harvard University Ph.D. in Fine Arts Dissertation: "The Independent Landscapes of Albrecht Altdorfer," advised by Konrad Oberhuber and Henri Zerner 2000 Yale University Honorary Master of Arts Privatim (MAH) Employment 1992-2014 Yale University Assistant, (from 1996) Associate, (from 2000) Full Professor, and (from 2013) Carnegie Professor, History of Art 2014-present New York University Professor, Department of German Visiting professorships fall 1997 University of California, Berkeley Visiting Associate Professor spring 2001 Vassar College Belle Ribicoff Distinguished Visiting Scholar spring 2007 Hebrew University, Jerusalem, Visiting Professor fall 2013 New York University, Department of German, Visiting Professor AWARDS AND FELLOWSHIPS: 2 1980 Jacob Wendell Scholarship, Harvard University 1983-1984 Deutscher Akademischer Austauschsdienst (DAAD) fellowship, Munich 1987-1988 Sheldon Fellowship, Harvard University, for study and travel abroad (Vienna, Paris) 1989-1992 Junior Fellow, Society of Fellows, Harvard University summer 1994 Guest scholar, Institut für Europäische -
The Spell of Belgium
The Spell of Belgium By Isabel Anderson THE SPELL OF BELGIUM CHAPTER I THE NEW POST THE winter which I spent in Belgium proved a unique niche in my experience, for it showed me the daily life and characteristics of a people of an old civilization as I could never have known them from casual meetings in the course of ordinary travel. My husband first heard of his nomination as Minister to Belgium over the telephone. We were at Beverly, which was the summer capital that year, when he was told that his name was on the list sent from Washington. Although he had been talked of for the position, still in a way his appointment came as a surprise, and a very pleasant one, too, for we had been assured that “Little Paris” was an attractive post, and that Belgium was especially interesting to diplomats on account of its being the cockpit of Europe. After receiving this first notification, L. called at the “Summer White House” in Beverly, and later went to Washington for instructions. It was not long before we were on our way to the new post. Through a cousin of my husband’s who had married a Belgian, the Comte de Buisseret, we were able to secure a very nice house in Brussels, the Palais d’Assche. As it was being done over by the owners, I remained in Paris during the autumn, waiting until the work should be finished. My husband, of course, went directly to Brussels, and through his letters I was able to gain some idea of what our life there was to be. -
Historical Painting Techniques, Materials, and Studio Practice
Historical Painting Techniques, Materials, and Studio Practice PUBLICATIONS COORDINATION: Dinah Berland EDITING & PRODUCTION COORDINATION: Corinne Lightweaver EDITORIAL CONSULTATION: Jo Hill COVER DESIGN: Jackie Gallagher-Lange PRODUCTION & PRINTING: Allen Press, Inc., Lawrence, Kansas SYMPOSIUM ORGANIZERS: Erma Hermens, Art History Institute of the University of Leiden Marja Peek, Central Research Laboratory for Objects of Art and Science, Amsterdam © 1995 by The J. Paul Getty Trust All rights reserved Printed in the United States of America ISBN 0-89236-322-3 The Getty Conservation Institute is committed to the preservation of cultural heritage worldwide. The Institute seeks to advance scientiRc knowledge and professional practice and to raise public awareness of conservation. Through research, training, documentation, exchange of information, and ReId projects, the Institute addresses issues related to the conservation of museum objects and archival collections, archaeological monuments and sites, and historic bUildings and cities. The Institute is an operating program of the J. Paul Getty Trust. COVER ILLUSTRATION Gherardo Cibo, "Colchico," folio 17r of Herbarium, ca. 1570. Courtesy of the British Library. FRONTISPIECE Detail from Jan Baptiste Collaert, Color Olivi, 1566-1628. After Johannes Stradanus. Courtesy of the Rijksmuseum-Stichting, Amsterdam. Library of Congress Cataloguing-in-Publication Data Historical painting techniques, materials, and studio practice : preprints of a symposium [held at] University of Leiden, the Netherlands, 26-29 June 1995/ edited by Arie Wallert, Erma Hermens, and Marja Peek. p. cm. Includes bibliographical references. ISBN 0-89236-322-3 (pbk.) 1. Painting-Techniques-Congresses. 2. Artists' materials- -Congresses. 3. Polychromy-Congresses. I. Wallert, Arie, 1950- II. Hermens, Erma, 1958- . III. Peek, Marja, 1961- ND1500.H57 1995 751' .09-dc20 95-9805 CIP Second printing 1996 iv Contents vii Foreword viii Preface 1 Leslie A. -
Vereinszeitung Der Freunde Des Kunsthistorischen Museums Nr. 4
April VEREINSZEITUNG DER FREUNDE NR. 4 DES KUNSTHISTORISCHEN MUSEUMS APRIL 2017 Sehr geehrte Mitglieder! Das Theatermuseum verwahrt eine Sie am 13. Mai 2017 ins Triesting- der bedeutendsten Sammlungen tal führt. Hier steht mit Berndorf an Modellen von Bühnendekora- eine Stadt im Brennpunkt, die, be- tionen. Aus dem Gesamtbestand rühmt für ihre einmalige städtebau- von fast 1.000 Objekten wird liche Anlage als Arbeiterstadt mit unter dem Titel „Der magische absolutistisch-unternehmerischen Raum“ eine vielseitige Auswahl Zügen des 19. Jahrhunderts, von präsentiert. Es freut mich, dass der der Persönlichkeit Arthur Krupps Kurator der Ausstellung, Dr. Rudi geprägt ist. Risatti, eine Führung anbietet. Mit Beginn der wärmeren Jah- Die Jubilarin Maria Theresia steht reszeit setzt Mag. Tina Walzer weiterhin im Zentrum diverser ihre Spaziergänge zur jüdischen Ausstellungen. So setzt sich das Geschichte fort, und Matthias Hofmobiliendepot mit der Mon- Fichtinger präsentiert ein neues archin unter dem Gesichtspunkt Format an Architekturführungen. ihrer Heirats- und Familienpolitik Unter dem Motto „Kopf hoch!“ be- auseinander. Erfahren Sie bei ei- gleitet er Sie durch scheinbar ver- ner Führung mit Mag. Alexandra traute Gassen und Viertel Wiens, Matzner oder Mag. Manuel Krei- um auf baukünstlerische Schön- ner mehr über die Regentin und heiten über unserem alltäglichen sich seit dem gemeinsamen Tod ihre 16 Kinder. Blickfeld zu verweisen. Den Auf- von Kronprinz Rudolf und seiner Als weitere Veranstaltungsorte takt bildet eine der bekanntesten jungen Geliebten Mary Vetsera der großen Jubiläumsausstellung und geschäftigsten Straßen Wiens: am 30. Jänner 1889 in Mayerling „300 Jahre Maria Theresia“ sei- die Kärntner Straße. immer wieder Autoren mit diesem en auch Schloss Hof und Schloss tragischen Geschehen auseinan- Niederweiden genannt. -
HNA Apr 2015 Cover.Indd
historians of netherlandish art NEWSLETTER AND REVIEW OF BOOKS Dedicated to the Study of Netherlandish, German and Franco-Flemish Art and Architecture, 1350-1750 Vol. 32, No. 1 April 2015 Peter Paul Rubens, Agrippina and Germanicus, c. 1614, oil on panel, National Gallery of Art, Washington, DC, Andrew W. Mellon Fund, 1963.8.1. Exhibited at the Academy Art Museum, Easton, MD, April 25 – July 5, 2015. HNA Newsletter, Vol. 23, No. 2, November 2006 1 historians of netherlandish art 23 S. Adelaide Avenue, Highland Park, NJ 08904 Telephone: (732) 937-8394 E-Mail: [email protected] www.hnanews.org Historians of Netherlandish Art Offi cers President – Amy Golahny (2013-2017) Lycoming College Williamsport PA 17701 Vice-President – Paul Crenshaw (2013-2017) Providence College Department of Art History 1 Cummingham Square Providence RI 02918-0001 Treasurer – Dawn Odell Lewis and Clark College 0615 SW Palatine Hill Road Portland OR 97219-7899 European Treasurer and Liaison - Fiona Healy Seminarstrasse 7 D-55127 Mainz Germany Contents Board Members President's Message .............................................................. 1 Obituary/Tributes ................................................................. 1 Lloyd DeWitt (2012-2016) Stephanie Dickey (2013-2017) HNA News ............................................................................7 Martha Hollander (2012-2016) Personalia ............................................................................... 8 Walter Melion (2014-2018) Exhibitions ........................................................................... -
14 CH14 P468-503.Qxp 9/10/09 11:40 Page 468 14 CH14 P468-503.Qxp 9/10/09 11:40 Page 469 CHAPTER 14 Artistic Innovations in Fifteenth-Century Northern Europe
14_CH14_P468-503.qxp 9/10/09 11:40 Page 468 14_CH14_P468-503.qxp 9/10/09 11:40 Page 469 CHAPTER 14 Artistic Innovations in Fifteenth-Century Northern Europe HE GREAT CATHEDRALS OF EUROPE’S GOTHIC ERA—THE PRODUCTS of collaboration among church officials, rulers, and the laity—were mostly completed by 1400. As monuments of Christian faith, they T exemplify the medieval outlook. But cathedrals are also monuments of cities, where major social and economic changes would set the stage for the modern world. As the fourteenth century came to an end, the were emboldened to seek more autonomy from the traditional medieval agrarian economy was giving way to an economy based aristocracy, who sought to maintain the feudal status quo. on manufacturing and trade, activities that took place in urban Two of the most far-reaching changes concerned increased centers. A social shift accompanied this economic change. Many literacy and changes in religious expression. In the fourteenth city dwellers belonged to the middle classes, whose upper ranks century, the pope left Rome for Avignon, France, where his enjoyed literacy, leisure, and disposable income. With these successors resided until 1378. On the papacy’s return to Rome, advantages, the middle classes gained greater social and cultural however, a faction remained in France and elected their own pope. influence than they had wielded in the Middle Ages, when the This created a schism in the Church that only ended in 1417. But clergy and aristocracy had dominated. This transformation had a the damage to the integrity of the papacy had already been done.