2,006 research outputs found
Concrete Pavement Containing High Volumes of Recycled Materials
No full textPresented by: Dr. Jeffery Volz Associate Professor, the University of Oklahoma
Concrete production uses a considerable amount of non-renewable natural resources and generates a significant amount of greenhouse gases. To obtain a more sustainable solution requires examining the two main components of concrete – aggregates and cement. Recycling concrete as aggregate for new concrete reduces construction waste, diverts material from already over-burdened landfills, and lowers demand for virgin aggregate. Using supplementary cementitious materials – such as fly ash, blast furnace slag, and glass powder – also diverts material from landfills and reduces the carbon footprint of concrete.
To date, no studies have examined combining high volumes of recycled concrete aggregate and supplementary cementitious materials in concrete. The main objective of this research study was to produce concrete for conventional pavement construction that incorporates at least 50% recycled materials (both recycled concrete aggregate and supplementary cementitious materials) without compromising performance or service life.
The primary deliverable from this research project will be a set of guidelines for material selection and mixture optimization for using high volumes of recycled materials in concrete pavement. These guidelines will be used to create either prescriptive- or performance-based specifications for incorporation into standard specifications or job-specific provisions.
BIO: Dr. Jeffery S. Volz is an Associate Professor in the School of Civil Engineering and Environmental Science at the University of Oklahoma. He has B.S. and M.S. degrees in Architectural Engineering and a Ph.D. in Civil Engineering with a minor in Material Science, all from Penn State. Dr. Volz spent 16 years in Chicago involved in structural design, research, and forensic investigations of buildings and bridges. A Licensed Structural Engineer in Illinois and Professional Engineer in Missouri and Illinois, he has worked for Skidmore, Owings & Merrill, the CTLGroup, Montgomery Watson Harza, and Holabird and Root. His research interests involve the combination of structural engineering and material science aimed at material improvements for structural performance
Lattice expansion of Ca and Ar ion implanted GaN
No full textLattice expansion of Ca and Ar ion implanted GaN / K. Volz ... - In: Applied physics letters. 71. 1997. S. 2313-231
Lattice expansion of Ca and Ar ion implanted GaN
No full textLattice expansion of Ca and Ar ion implanted GaN / K. Volz ... - In: Applied physics letters. 71. 1997. S. 2313-231
Microscopy of SiC layers grown by C60 deposition on Si(100)
No full textMicroscopy of SiC layers grown by C60 deposition on Si(100) / K. Volz ... - In: Japanese journal of applied physics. 1. 37. 1998. S. 6090-609
Joint Symposium IV - NANOSCALE HEAT PROCESSES
No full textThe purpose of the Symposium “Nanoscale heat processes” is to discuss the
state of the art in the Nanoscale Heat Transfer and management, as well as the recent
advances in the study of self-heating via electron-phonon interaction in nano devices,
and of near field radiation, allowing for the exchange relevant information, to promote
collaboration among scientists and to provide the scientific basis to the newcomers.
The symposium will bring together scientists, technology developers and young
researchers who are interested in the theoretical tools and in the development and
investigation of a large variety of new materials and applications.
(https://www.photonics-congress.com/about/conferences/cleoeqec/index.html#conference_topics
Unsere Kolonien : Land und Leute
No full textElektronische Reproduktion von: Unsere Kolonien : Land und Leute / von Berthold Volz. - Leipzig : Brockhaus, 1891. - X, 369 S. : Ill., Kt. -
Standort: Universität Marburg, Universitätsbibliothek. -
Signatur: 085 8 2016/02387. -
Bemerkungen:
Digitalisiert 202
Presence of an expressed 13-tubulin gene (TUBB) in the HLA class I region may provide the genetic basis for HLA-linked microtubule dysfunction
Get PDFAn expressed beta-tubulin gene (TUBB) has previously
been localized to chromosome region 6pter-p21
in man. By using a panel of deletion mutant cell lines and
radiation-reduced hybrids containing fragments of chromosome
6, the TUBB locus could be mapped to the HLA
class I region at 6p21.3. A long range restriction map including
TUBB and several HLA class I genes was then
generated by rotating field gel electrophoresis. The results
show that TUBB maps to a segment 170-370 kb telomeric
of HLA-C. This location suggests that a mutation at the
TUBB locus could be the cause for certain forms of HLAlinked
microtubule dysfunction, including immotile cilia
syndrome
Extraterritoriale Terrorismusbekämpfung
No full textMarkus Volz befasst sich mit den Auswirkungen des internationalen Terrorismus und insbesondere der Anschläge vom 11. September 2001 auf das Völkerrecht. Untersucht werden die Voraussetzungen und Grenzen staatlicher Regelungs- und Durchsetzungshoheit (Jurisdiktion). Anhand zweier Fallbeispiele - der Vorabübermittlung von Fluggastdaten im internationalen Luftverkehr und der Initiative zur Unterbindung der Proliferation von Massenvernichtungswaffen (PSI) - weist der Verfasser eine neue völkergewohnheitsrechtliche Entwicklung zur Anerkennung extensiver Regelungshoheit und eine verstärkte Kooperationsbereitschaft der Staaten im Zusammenhang mit der internationalen Terrorismusbekämpfung nach. Markus Volz zeigt außerdem, dass mit der Ausübung extraterritorialer Hoheitsgewalt die entsprechende extraterritoriale Anwendung völkerrechtlicher Verträge zum Schutz von Menschenrechten einhergehen sollte.The events of September 11, 2001 have triggered a »global war on terror«. One of its hallmarks is to fight terrorism beyond State borders. This study examines the limits of such extraterritorial action and its effects on the rules of jurisdiction in international law. The question of extraterritorial jurisdiction has hitherto been confined to international economic law and international environmental law. This study opens up a novel dimension to one of the fundamental questions of international law. Using two case studies, the author outlines a new development of States more readily recognizing extensive claims to prescriptive jurisdiction where these are justified on grounds of fighting international terrorism. The first case study concerns the demand by US authorities on European and other foreign airlines to provide Passenger Name Record (PNR) data and to allow access to computer systems outside the United States. The second one pertains to the Proliferation Security Initiative (PSI), which provides the framework for the interdiction of weapons of mass destruction at sea. Finally, the author argues that any extension of extraterritorial jurisdiction should be accompanied by the extraterritorial application of human rights instruments
Gender differences in post-stroke depression: A longitudinal analysis of prevalence, persistence and predictive value of known risk factors
No full textVolz M, Ladwig S, Werheid K. Gender differences in post-stroke depression: A longitudinal analysis of prevalence, persistence and predictive value of known risk factors. Neuropsychological Rehabilitation. 2021;31(1):1-17
The development and transformation of the People's Republic of China's financial system
No full textThis paper looks at the development and transformation of the People's Republic of China (PRC)'s financial system since the start of economic and financial reforms in 1978. It describes how despite the rapid development of capital markets since the 1990s, the PRC's financial system continues to be dominated by bank lending. Reforms have not eliminated the credit expansion impetus of large commercial banks, while the effectiveness of capital-based constraints and administrative measures is far below potential. Large state-owned banks have become important players in bond and equity markets, as well as important sources of liquidity provision for smaller commercial banks and a range of non-bank financial institutions through a combination of inter-bank funding activities, wealth management products and shadow banking/grey capital market activities. The importance of non-bank financial institutions has also continued to grow. Off-shore markets have increased the overseas holdings of financial assets, but their potential remains limited by capital controls and the fragility of the domestic financial system. An unintended consequence of this is that although the PRC's state run financial system has become more complex and more interconnected domestically, foreign participation remains low
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