646 research outputs found
Entwicklung einer schnellen Pulsformanalyse für asymmetrische AGATA-Germanium-Detektoren
No full textOnTEAM metadata: GDSID: DOC-2007-May-32; Attribute ID: LIBRARY-thesis_diss-2007-005; Title: [GSI Diss 2007-05] Entwicklung einer schnellen Pulsformanalyse für asymmetrische AGATA-Germanium-Detektoren; Author(s): Beck, Torsten; Corporate author(s): ; Publication date: 20070501; Creator: manton; Creation date: 15.05.2007 16:02:12; Change date: 29.10.2008 16:29:34; Access: nur berechtigte Gruppen; Attribute type: Text.Thesis.Diss; Directory path: ['GSI Publications', 'GSI as Publisher']; Attribute path: ['Infrastructure', 'Library and Documentation', 'thesis_diss', 'Added in 2007']; File name(s): ['DOC-2007-May-32-1.pdf']; File title(s): ['']; File access: ['nur berechtigte Gruppen'
Manifolds, sheaves, and cohomology
No full textThis book explains techniques that are essential in almost all branches of modern geometry such as algebraic geometry, complex geometry, or non-archimedian geometry. It uses the most accessible case, real and complex manifolds, as a model. The author especially emphasizes the difference between local and global questions. Cohomology theory of sheaves is introduced and its usage is illustrated by many examples. Content Topological Preliminaries - Algebraic Topological Preliminaries - Sheaves - Manifolds - Local Theory of Manifolds - Lie Groups - Torsors and Non-abelian Cech Cohomology - Bundles - Soft Sheaves - Cohomology of Complexes of Sheaves - Cohomology of Sheaves of Locally Constant Functions - Appendix: Basic Topology, The Language of Categories, Basic Algebra, Homological Algebra, Local Analysis Readership Graduate Students in Mathematics / Master of Science in Mathematics About the Author Prof. Dr. Torsten Wedhorn, Department of Mathematics, Technische Universität Darmstadt, Germany
James Watson, Maclyn McCarty, and Torsten Wiesel
No full textTorsten Wiesel (right) with Professor Emeritus Maclyn McCarty (center), co-author of the paper with Oswald Avery and Colin MacLeod, and James D. Watson, director of Cold Spring Harbor Laboratory, 1994
Photo by Leif Carlsson
To commemorate the fiftieth anniversary of the discovery at The Rockefeller University that genes are made of DNA - considered by many to be the single most important biological discovery of the twentieth century - the university has kicked off a year-long series of events that were running through May 1994. The celebration was formally inaugurated in November 1993 with a lecture by Nobel laureate James D. Watson, best known for discovering the double-helical structure of DNA.
See also Search Winter 1994, vol. 4, no. 1https://digitalcommons.rockefeller.edu/group-portraits/1013/thumbnail.jp
Seltsame Schauspiele. Torsten Fogelqvists Deutschlandreise 1934
No full textIn 1934 Torsten Fogelqvist, a prominent member of the Swedish Academy and a well-known journalist and intellectual, visits Nazi Germany. He writes about his visit to the Third Reich in 17 articles published in the Stockholm daily newspaper Dagens Nyheter. The author, highly critical of the Hitler regime, scrutinizes several aspects of the nazified German society such as the attempts to re-educate the German citizen in accordance with the ideology of the new regime, the hero cult in the Nazi movement, and the relationship between the German state and the churches. In order to further an understanding of political and social developments in Germany Fogelqvist uses a specific strategy. He “translates” them into an imaginary Swedish context. This paper compares his views with those of other Swedish visitors
PISM glacial cycle sensitivity experiments of the Antarctic Ice Sheet
No full textThis dataset contains PISM simulation results (http://www.pism-docs.org) of the Antarctic Ice Sheet based on code release v1.0-paleo-ensemble (https://doi.org/10.5281/zenodo.3574033). PISM is the open-source Parallel Ice Sheet Model developed mainly at UAF, USA and PIK, Germany.
With the help of added python scripts, all figures can be reproduced as in the journal publication:
- Albrecht et al., 2020, doi:10.5194/tc-14-599-2020.
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Data:
Find PISM results as netCDF data. See 'README.md' for a list of all performed experiment.
All forcing input data for the experiments and plots can be downloaded and remapped via https://github.com/pism/pism-ais. Some of the original input data files are freely available, for others please contact the author or the corresponding data publisher.
Figure plotting scripts (jupyter notebook based on python, see https://jupyter.org) in 'plot_scripts' access the uploaded PISM results in 'model_data' and save the plots to 'final_figures'. Jupyter notebook can be run in the browser and shared, see https://nbviewer.jupyter.org/url/www.pik-potsdam.de/~albrecht/notebooks/paleo_paper/paleo_paper_final.ipynb.
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Contact:
Albrecht, Torsten ([email protected]) ; Potsdam-Institute for Climate Impact Research (PIK), Potsdam, German
Die Erfolgsfaktoren für unternehmerisches E-Mail-Marketing nach Dr. Torsten Schwarz am Praxisbeispiel ERGOTOPIA GmbH
No full textThis scientific document reveals the results of an empirical examination within the realm of entrepreneurial e-mail-marketing which is based on a literature review by technical author Dr. Torsten Schwarz. Using the start-up company ERGOTOPIA as a practical example, the author of the master thesis investigates whether the explanations of Dr. Schwarz match with the practical implementation of ERGOTOPIA.
Precisely, the scientific paper focuses on the examination of the four aspects lead generation, newsletter-design, software-requirements and performance measurement through monitoring with regard to successful realization of e-mail-marketing campaigns. The empirical part of this examination is made of the introduction as well as the analysis of two conducted so called split-tests that compare specific aspects of the newsletter-design and measure data-driven results to show which kind of aspect produced the more successful campaign.
This way the author proves whether the recommendations by Dr. Schwarz are practically relevant for the company ERGOTOPIA
Invitation to Dialogue - A Progress Report
No full textFragmentation of knowledge and life milieux, so often associated with specialization in science and planning, provided the broad challenge in science and planning, provided the broad challenge for a DIALOGUE PROJECT initiated by Torsten Hägerstrand and Anne Buttimer in Sweden during the Academic Years 1977-1979. The initial incentive for confronting such a wide-ranging set of issues arose from a paper on Values in Geography (Buttimer, 1974), after which the author was invited as a Fulbright lecturer to offer a series of seminars in Lund on problems of knowledge and experience. More than forty participants from ten widely different disciplines took part in this seminar, and foundations were laid for an experientially-grounded approach to the problems of communication across disciplines. The present project was initiated when Anne Buttimer was invited to accept a full time position in Sweden by the Humanistisk-Samhällsvetenskapliga Forskningsrådet (Council for Humanities and Social Science) in 1977. Financial support for this pilot phase of the Dialogue Project was granted by the Swedish Committee for Future Oriented Research and the Bank of Sweden Tercentenary Foundation. The geography department at the University of Lund continues to provide material and administrative help, with Torsten Hägerstrand as Co-Director
Invitation to Dialogue - A Progress Report
No full textFragmentation of knowledge and life milieux, so often associated with specialization in science and planning, provided the broad challenge in science and planning, provided the broad challenge for a DIALOGUE PROJECT initiated by Torsten Hägerstrand and Anne Buttimer in Sweden during the Academic Years 1977-1979. The initial incentive for confronting such a wide-ranging set of issues arose from a paper on Values in Geography (Buttimer, 1974), after which the author was invited as a Fulbright lecturer to offer a series of seminars in Lund on problems of knowledge and experience. More than forty participants from ten widely different disciplines took part in this seminar, and foundations were laid for an experientially-grounded approach to the problems of communication across disciplines. The present project was initiated when Anne Buttimer was invited to accept a full time position in Sweden by the Humanistisk-Samhällsvetenskapliga Forskningsrådet (Council for Humanities and Social Science) in 1977. Financial support for this pilot phase of the Dialogue Project was granted by the Swedish Committee for Future Oriented Research and the Bank of Sweden Tercentenary Foundation. The geography department at the University of Lund continues to provide material and administrative help, with Torsten Hägerstrand as Co-Director
Mikrowellenheizung und Diagnostik von überthermischen Elektronen in einem überdichten Stellarator-Plasma
No full textEine der Hauptmethoden zur Heizung eines magnetisch eingeschlossenen Plasmas basiert auf der resonanten Einkopplung von Mikrowellen. Von wachsender Bedeutung für Fusionsplasmen hoher Dichte ist die Identifizierung und das Verständnis der Mechanismen zur Heizung von überdichten Plasmen, in denen eine Wellenpropagation im Allgemeinen nicht möglich ist, da die Plasmafrequenz höher als die Heizfrequenz ist. Das Hauptthema in der vorliegenden Arbeit ist die Heizung von überdichten Plasmen am Stellarator WEGA. Die Anregung von Elektron-Bernsteinwellen über den OXB-Konversionsprozess bietet eine Möglichkeit die andernfalls nicht zugängliche resonante Absorptionsschicht im Plasma zu erreichen.
Im speziellen Fall von WEGA wird während der OXB-Heizung eine überthermische Elektronenkomponente mit Energien bis zu 80 keV erzeugt. Die schnellen Elektronen sind im
Plasmazentrum lokalisiert und weisen innerhalb des weichen Röntgenbereiches eine Maxwellsche Verteilung auf. Die entsprechende mittlere Energie liegt im Bereich von einigen
keV.
Die OXB-Entladungen sind zusätzlich begleitet von einem breitbandigen Mikrowellenspektrum mit Strahlungstemperaturen von ebenfalls einigen keV. Die Quelle der Strahlung konnte als parametrischer Zerfall der Heizwelle identifiziert werden ohne eine Verbindung zur überthermischen Elektronenkomponente. Zur detailierten Untersuchung der Mikrowellenemission wurde ein quasioptisches Spiegelsystem aufgebaut, das auf die OX-Konversion optimiert ist. Mit Hilfe der breitbandigen Streustrahlung des Zerfallsprozess konnte die OX-Konversionseffizienz mit 0.56 bestimmt werden, das in guter Übereinstimmung mit dem theoretischen Wert ist.
Darüber hinaus wurde bei Plasmen ohne eine Elektronen-Zyklotron-Resonanz bezüglich der Heizwelle ein überdichter nicht-resonanter Heizprozess untersucht. Whistler-Wellen oder allgemeiner Wellen mit einer rechtsdrehenden Polarisation sind die einzigen ausbreitungsfähigen Wellen innerhalb der untersuchten stark überdichten Plasmen. Durch Analyse der Heizeffizienz in Abhängigkeit von der magnetischen Flussdichte in der Umgebung der Reflexionsschicht lässt sich auf die Tunnelung als wahrscheinlichster Kopplungsmechanismus schließen.
Zur Bestimmung der Heizeffizienz für die verschiedenen Heizszenarien (überdichte nichtresonante Heizung sowie underdichte und überdichte resonante Heizung) wurde eine Vielzahl von Diagnostik-Methoden angewendet. Im Fall von Wärmewellenexperimenten wurden unter anderem die Zeitabhängigkeit der Plasmastrahlung genutzt um zu einer Abschätzung der Heizleistung sowie der Energieeinschlusszeit zu kommen. Die Genauigkeit der Methode kann auf ±10% abgeschätzt werden abhängig von der Messgenauigkeit der Strahlungsmessung.The resonant coupling of microwaves into a magnetically confined plasma is one of the fundamental methods for the heating of such plasmas. Identifying and understanding the processes of the heating of overdense plasmas, in which the wave propagation is generally not possible because the wave frequency is below the plasma frequency, is becoming increasingly important for high density fusion plasmas. This work focuses on the heating of overdense plasmas in the WEGA stellarator. The excitation of electron Bernstein waves, utilizing the OXB-conversion process, provides a mechanism for the wave to reach the otherwise not accessible resonant absorption layer.
In WEGA these OXB-heated plasmas exhibit a suprathermal electron component with energies up to 80 keV. The fast electrons are located in the plasma center and have a Maxwellian energy distribution function within the soft X-ray related energy range. The corresponding averaged energy is a few keV.
The OXB-discharges are accompanied by a broadband microwave radiation spectrum with radiation temperatures of the order of keV. Its source was identified as a parametric decay of
the heating wave and has no connection to the suprathermal electron component. For the detailed investigation of the microwave emission, a quasioptical mirror system, optimized for the OX-conversion, has been installed. Based on the measurement of the broadband microwave stray radiation of the decay process, the OX-conversion efficiency has been determined to 0.56 being in good agreement with full-wave calculations.
In plasmas without an electron cyclotron resonance, corresponding to the wave frequency used, non-resonant heating mechanisms have been identified in the overdense plasma regions. Whistler waves or R-like waves are the only propagable wave types within the overdense plasmas. The analysis of the heating efficiency in dependence on the magnetic flux density leads to tunneling as the most probable coupling mechanism.
For the determination of the heating efficiencies of the different heating scenarios (overdense
non-resonant heating, underdense and overdense resonant heating) a variety of diagnostic methods have been used. Based on heat wave experiments and measuring the response of the total plasma radiation, an estimate of the absorbed heating power and the energy confinement time has been achieved with an accuracy of ±10% dependent on the measurement accuracy of the radiated power
1926:3
No full textARTIKLAR
Arvid Runestam: Augustinus »evdämonism». Med anledning av Holls Augustinustolkning
Gustaf Aulén: Luther – strömbrytaren
Gustaf Aulén: Den evangeliska teologiens tvenne huvudskeden och vår tid
TEOLOGISK LITTERATUR
Erling Eidem: Paulus-böcker
Karl Adam: Das Wesen des Katholizismus. 2 uppl. Karl Heim: Das Wesen des evangelischen Christentums. 2 uppl. Anm. av Gustaf Ljunggren
Samuel Ödmanns skrifter och brev, utgivna med levnadsteckning och kommentar av Henning Wijkmark. Anm. av Hilding Pleijel
Paul Althaus: Die letzten Dinge. 3 uppl. Anm. av Torsten Bohlin
H. Scholz: Der Unsterblichkeitsgedanke als philosophisches Problem. H. Münsterberg: Det eviga livet. Alf Ahlberg: Odödlighetsproblemet. En metafysisk studie. C. Stange: Die Unsterblichkeit der Seele. P. Althaus: Die Unsterblichkeit der Seele bei Luther. C. Stange: Zur Auslegung der Aussagen Luthers über die Unsterblichkeit der Seele. P. Althaus: Die letzten Dinge. Entwurf einer christlichen Eschatologie. Anm. av Anders Nygren
FRÅN DEN TEOLOGISKA SAMTIDE
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