1681   THE PLACE OF CHRONOLOGICAL STUDIES IN ARCHAEOLOGY A VIEW FROM THE OLD WORLD† THE PLACE OF CHRONOLOGICAL STUDIES IN ARCHAEOLOGY A VIEW FROM THE OLD WORLD† Herbert S. Lewis    2007 This article deals with the univeral problem of chronological versus social change and discusses the methodological foundations and the scientific functions of chronological studies, exemplified by the Nordic Bronze Age, a classic example of the development of a chronological system. First the universal validity of the premises of typology and seriation are questioned. Secondly, there is a discussion of the chronological implications of the many possible relationships between the period of produ... 查看全文

1682   Measurement of mechanical quantities using quartz sensors Measurement of mechanical quantities using quartz sensors R. Grossman    0 Quartz crystals supply a resonant frequency highly stable in time. However, temperature, strain, etc. can affect this frequency. Usually a quartz crystal is part of an oscillator and housed in order to avoid any influence of the environment. On the other hand by clamping it in the most sensitive direction it may work as a sensor for strain and thus for any mechanical quantity. There are three kinds of quartz sensors be presented: SAW delay lines, SAW resonators and BAW resonators. The measuremen... 查看全文

1683   Forum: Social Anthropology Training and the Museum Field Forum: Social Anthropology Training and the Museum Field Herbert S. Lewis    2008 查看全文

1684   Betrachtungen über einige Salze Betrachtungen über einige Salze K. F. Luft    2006 查看全文

1685   Applications of Wide-Diameter Open Tubular Columns in Gas Chromatography. Applications of Wide-Diameter Open Tubular Columns in Gas Chromatography. E. R. Quiram    1963 查看全文

1686   Cardinalities and Diagonalization Cardinalities and Diagonalization    0 This chapter introduced the concept of cardinality and illustrated how various infinite sets might have incomparable cardinalities. The main technique for demonstrating that two sets have different cardinalities is a proof technique by contradiction known as diagonalization. A useful theorem for showing that two sets have the same cardinality is the Schr?der-Bernstein theorem. A thorough description of these concepts in this early of a chapter has been found to be helpful to many... 查看全文

1687   Beam test of niobium sputtered QWRs and upgrading of ALPI medium β cavities Beam test of niobium sputtered QWRs and upgrading of ALPI medium β cavities A. M. Porcellato;S. Y. Stark;V. Palmieri;G. Bisoffi;A. Dainelli;M. Poggi;L. Bertazzo;F. Stivanello;L    0 Four new super-conducting Quarter Wave Resonators (QWR, β = 0.13), obtained by niobium sputtered on an OFHC copper substrate, were recently installed and tested on the ALPI post-accelerator (1). The resonators substituted four similar ones that were operating at 4 MV/m at 7 W, because two of their couplers jammed. Now the cavities have a new coupler design and show an acceleration field, measured with different ion species, in excess of 6 MV/m at 7 W (about 1 MeV energy gain per cavity per char... 查看全文

1688   The Coupled Analysis of Pipe Burst and Multicomponents Fluid of Very High Pressured Natural Gas Pipeline The Coupled Analysis of Pipe Burst and Multicomponents Fluid of Very High Pressured Natural Gas Pipeline Tomoe Oda, Yoshiaki Tamura, Yoichiro Matsumoto;Tetuya Kawamura    0 –  The decompression of natural gas is slower than one of ideal gas. –  The two-dimensional coupled analysis of fluid and structure is developed. –  The large inertia force continue... 查看全文

1689   APPLICATION OF LEAD ISOTOPE ANALYSIS TO A WIDE RANGE OF LATE BRONZE AGE EGYPTIAN MATERIALS† APPLICATION OF LEAD ISOTOPE ANALYSIS TO A WIDE RANGE OF LATE BRONZE AGE EGYPTIAN MATERIALS† Cathy Lynne Costin    2006 Lead isotope analysis was applied to Egyptian materials from the Late Bronze Age in order to investigate the relationship between these different materials, many of which have lead as a significant component. The galena kohls analysed can be provenanced to Gebel Zeit, a large mining site known to have been active during the period. However, the source of lead metal is different and seems to be outside Egypt, along with the source of copper. Lead-based pigments such as lead antimonate that were u... 查看全文

1690   Kinetic applications of electron paramagnetic resonance spectroscopy. XV. Iminyl radicals Kinetic applications of electron paramagnetic resonance spectroscopy. XV. Iminyl radicals D. Griller, G. D. Mendenhall, W. Van Hoof, K. U. Ingold    1974 查看全文

1691   Junius Bouton Bird (1907–1982) Junius Bouton Bird (1907–1982) Cathy Lynne Costin    2009 查看全文

1692   Book Review: Comparative Vertebrate Cognition: Are Primates Superior to Nonprimates? Edited by Lesley J. Rogers and Gisela Kaplan. New York: Kluwer Academic Publishers. 2002. 386 pp. $140.00. ISBN 0-3 Book Review: Comparative Vertebrate Cognition: Are Primates Superior to Nonprimates? Edited by Lesley J. Rogers and Gisela Kaplan. New York: Kluwer Academic Publishers. 2002. 386 pp. $140.00. ISBN 0-3 Laurie R. Santos    2004 查看全文

1693   Museums, Women and Empowerment in the MENA Countries Museums, Women and Empowerment in the MENA Countries Cathy Lynne Costin    2007 查看全文

1694   PYROXYLIN, ITS MANUFACTURE AND APPLICATIONS. PYROXYLIN, ITS MANUFACTURE AND APPLICATIONS. Walter D. Field    1894 查看全文

1695   Acoustic control in a tractor cabin using two optimally designed Helmholtz resonators Acoustic control in a tractor cabin using two optimally designed Helmholtz resonators Patricia L. Driesch;Gary H. Koopmann    0 A virtual design methodology is developed to minimize the noise in enclosures with optimally designed, passive, 20 acoustic absorbers (Helmholtz resonators). A series expansion of eigenfunctions is used to represent the acoustic=20 absorbers as external volume velocities, eliminating the need for a solution of large matrix eigenvalue problems. A determination of this type (efficient model/reevaluation approach) significantly increases the design possibilities when optimization techniques are imp 查看全文

1696   Spherical microcavity resonator fabrication based on laser technology Spherical microcavity resonator fabrication based on laser technology Q. K. Kieu    0 We discuss our recent experiments that aim at fabrication of optical microsphere resonators and methods for their quality estimation. First, free space laser melting technique (FSLMT) was investigated. Different regimes of laser action and its corresponding results were discussed. Secondly, we fabricated optical microsphere resonators of different sizes and optical glasses (including active glasses) using FSLMT. Whispering gallery modes (WGMs) in fabricated microsphere resonators were then obser... 查看全文

1697   Zur Berechnung der Unterschallströmung um ein beliebiges dünnes Profil Zur Berechnung der Unterschallströmung um ein beliebiges dünnes Profil Arthur Michael    2006 Die Berechnung der zweiten Nherung für die Unterschallströmung um dünne Profile nach der Verallgemeinerung der Prandtlschen Regel wurde bisher nur für spezielle Profilformen (Kreisbogen, Ellipse usw.) durchgeführt. Es wird hier die Aufgabe gelöst, in dieser Nherung die Unterschallströmung um ein beliebiges Profil zu bestimmen. Dabei zeigt es sich, daß man die Geschwindigkeitsverteilung am Profil berechnen kann, wenn für die konforme Abbildung des Au&... 查看全文

1698   The Integrated Cystoscope: an Alternative to Conventional and Fibreoptic Cystoscopy The Integrated Cystoscope: an Alternative to Conventional and Fibreoptic Cystoscopy    2008 Summary— This report describes a new integrated rigid cystoscope which has been designed for diagnostic and therapeutic cystoscopy under local anaesthesia. The small external diameter (17.5 F) and large instrument channel permit maximum irrigant flow and operating potential whilst causing minimum discomfort to the patient. We believe this instrument to be a practical alternative to conventional cystoscopes, including the fibreoptic cystoscope. 查看全文

1699   A Radiographic Study of Root Filled Teeth A Radiographic Study of Root Filled Teeth    2007 查看全文

1700   POLITICAL ECONOMY AND HISTORY: MAKING SENSE OF HEALTH FINANCING IN SUB-SAHARAN AFRICA POLITICAL ECONOMY AND HISTORY: MAKING SENSE OF HEALTH FINANCING IN SUB-SAHARAN AFRICA John S. Balirwa    2012 This paper demonstrates that fundamental to lack of progress towards universal coverage in sub-Saharan Africa is an elitist post-colonial political economy that dominates the social organisation in the sub-region. Too often, it seems that analyses of these issues ignore history and take no or little account of these post-colonial influences that today still have a bearing on policy in various sectors, especially in health care. We conclude that the achievement of this objective has to be a long-... 查看全文

1701   Ueber einige Thalliumverbindungen und die Stellung dieses Metalls im System Ueber einige Thalliumverbindungen und die Stellung dieses Metalls im System O. Lemmermann and H. Wieszlig;mann    2006 查看全文

1702   KING DEN IN OXFORD KING DEN IN OXFORD WILLIAM F. KELLEHER JR.    2007 Summary. Conservation treatment of two Egyptian objects of the early Dynastic period in the Ashmolean Museum has revealed inscriptions which include the name of King Den, of the 1st Dynasty (c. 2920–2770 B.C.). One object is a fragmentary ivory from the cache found in the “Main Deposit” at Hierakonpolis; the other is a copper bowl from Tomb U in the Royal Cemetery at Abydos. 查看全文

1703   In focus: the future of sustainable materials for industry In focus: the future of sustainable materials for industry Luanne Lohr and Lennart Salomonsson    2006 查看全文

1704   Patient-specific computational fluid dynamic simulation of a bilateral bidirectional Glenn connection Patient-specific computational fluid dynamic simulation of a bilateral bidirectional Glenn connection Qi Sun, Dawei Wan, Jinfen Liu, Haifa Hong, Yingzheng Liu;Ming Zhu    2008 Computational fluid dynamics (CFD) have been used to investigate the hemodynamic performance in cavopulmonary anastomosis and resulted in improved operative design. In this study, CFD simulations were performed in a patient-specific bilateral bidirectional Glenn (BBDG) connection model and the power losses as well as flow features at different levels of predetermined pulmonary flow splits were calculated and compared. The control volume power loss varied between 0.64 and ... 查看全文

1705   Computational fluid dynamics modeling of multicomponent thermal plasmas Computational fluid dynamics modeling of multicomponent thermal plasmas J. D. Ramshaw;C. H. Chang    1992 A comprehensive computational model has been developed Jbr flowing thermal plasmas in the absence of electromagnetic fields, with particular emphasis on plasma jets. The plasma is represented as a rnulticomponent chemicalh, reacting ideal gas with temperature-dependent thermodynamic and transport properties. The plasma flow is governed by the transient compressible Navier-Stokes equations in two or three space dimensions. Turbulence is represented by subgrid-scale and k- models. Species diffusio... 查看全文

1706   Boltzmann schemes for continuum gas dynamics Boltzmann schemes for continuum gas dynamics S M Deshp;e    1993 Many problems arising in the aerodynamic design of aerospace vehicles require the numerical solution of the Euler equations of gas dynamics. These are nonlinear partial differential equations admitting weak solutions such as shock waves and constructing robust numerical schemes for these equations is a challenging task. A new line of research called Boltzmann or kinetic schemes discussed in the present paper exploits the connection between the Boltzmann equation of the ki... 查看全文

1707   Elastizitt und Hydrodynamik flüssiger Kristalle Elastizitt und Hydrodynamik flüssiger Kristalle    2010 Es wird eine Übersicht über die Kontinuumsmechanik der flüssigen Kristalle gegeben, insbesondere über einige neuere Entwicklungen. 查看全文

1708   Filter zwischen Land und See: Darß-Zingster Boddengewsser Filter zwischen Land und See: Darß-Zingster Boddengewsser Prof. Dr. rer. nat. Hansjouml;rg Sinn    2003 Die Darß-Zingster Boddenkette stellt ein flaches, inneres Küstengewsser ohne Gezeiteneinfluss dar, wie es typisch für die südliche Ostsee ist. Dieses aquatische Ökosystem übt eine Filter- und Pufferwirkung auf die Ostsee aus. Im Gewssersystem existieren ausgeprgte horizontale chemische, physikalische und biologische Gradienten, von denen Salinitt, Konzentration an Nhrstoffen, sowie Verteilung und Aktivitt aquatischer Primrproduzenten besonders auffllig sind. 查看全文

1709   Mathematical Properties of the Fluid Dynamic Equations Mathematical Properties of the Fluid Dynamic Equations J.D. Anderson    0 查看全文

1710   First Nations Cultural Heritage and Law: Case Studies, Voices, and Perspectives. By Catherine Bell and Val Napoleon, eds, and Protection of First Nations Cultural Heritage: Laws, Policy, and Reform. B First Nations Cultural Heritage and Law: Case Studies, Voices, and Perspectives. By Catherine Bell and Val Napoleon, eds, and Protection of First Nations Cultural Heritage: Laws, Policy, and Reform. B Associate Professor Lindsay Jones    2011 查看全文

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