425 research outputs found
RRS Charles Darwin Cruise 135, 24 Oct-18 Nov 2001. ATSR validation cruise: Seychelles - Durban
No full textThis report describes RRS Charles Darwin Cruise 135, an ATSR satellite validation cruise which took place in October-November 2001. The cruise was divided into two legs: Leg 1 primarily focussed on ATSR satellite validation and Leg 2 was planned around the recovery of Netherlands Institute of Sea Research (NIOZ) moorings. Throughout the cruise real-time measurements of the air-sea fluxes of momentum, sensible heat, latent heat and CO2 were made, in addition to the usual mean meteorological parameters. The main aim of Leg 1 (Seychelles to Seychelles) was to achieve as many ATSR satellite overpass validations as possible with the SISTeR radiometer. In addition 5 APEX floats were deployed in support of the ARGO Programme and two XBT equatorial sections were made. During Leg 2 (Seychelles to Durban) the key objective was to recover an array of seven moorings, on a section across the Mozambique Channel roughly at its narrowest part, which had been previously deployed by NIOZ. Further ATSR overpass validations were achieved and two more XBT sections were made
Relational Analysis of the Frauchiger–Renner Paradox and Interaction-Free Detection of Records from the Past
No full textWe present an analysis of the Frauchiger–Renner Gedankenexperiment from the point of view of the relational interpretation of quantum mechanics. Our analysis shows that the paradox obtained by Frauchiger and Renner disappears if one rejects promoting one agent’s certainty to another agent’s certainty when it cannot be validated by records from the past. A by-product of our analysis is an interaction-free detection scheme for the existence of such records.Analysi
Federic G. Renner with Mitchell Wilder at the Amon Carter Museum of Western Art
No full textImage of Frederic G. Renner of Washington, author of the catalog for the exhibition of Russell Illustrated letters. Mr. Renner is photographed having a conversation with Mitchell Wilder, director of the museum. The two men are photographed looking at the Russell letters. Fort Worth Star-Telegram Evening edition January 23, 1962.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/1735/thumbnail.jp
Amon Carter Museum of Western Art; Frank Wardlaw, with Frederic G. Renner Johnson II
No full textFrank Wardlaw, director of the University of Texas Press, left, discusses a Russell bronze with Frederic G. Renner, author of Charles M. Russell: Paintings, Drawings and Sculpture in the Amon G. Carter Collection. Renner was honored at a reception in Amon Carter Museum of Western Art. Fort Worth Star-Telegram Morning edition September 27, 1966.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/3395/thumbnail.jp
THE DOUBLE RENNER EFFECT IN A TRIATOMIC MOLECULE
No full textAuthor Institution: FB 9 - Theoretische Chemie, Bergische Universit\""{a}t; Department of Chemistry, Faculty of Science, Ochanomizu UniversityThe electronic energy of a triatomic molecule can be doubly degenerate at linear configurations but split into two non-degenerate components at bent geometries. This is termed the Renner effect. If two different linear geometries are accessible to the molecule and the electronic energy is doubly degenerate at these geometries, we speak about the `double Renner effect.' For example, a double Renner effect will occur if the triatomic molecule ABC isomerizes between two linear minima ABC and BCA, say, and the electronic energy is doubly degenerate at these minima. An example of this is afforded by the two isomers MgNC and MgCN in the electronic state. Also ABB molecules can exhibit the double Renner effect. In the and electronic states of HOO, the proton orbits the OO moiety with two equivalent minima on each potential surface at bent geometries. At the two linear geometries HOO and OOH (which correspond to maxima on the potential energy surface) the two electronic states are degenerate as a state. The two equivalent minima on each surface are separated by a maximum corresponding to a T-shaped geometry. We have developed a program for calculating the rovibronic energies for a triatomic molecule in `double-Renner'-degenerate electronic states. Our program can treat both ABC- and ABB-type molecules. The new program has been applied to MgNC/MgCN, and to HOO in the and states. We present detailed analyses of rotation-bending-electronic wavefunctions aimed at providing further insight into the nature of the double-Renner interaction
State and nation
No full textTitle: Staat und Nation. Zur österreichischen Nationalitätenfrage (State and nation. To the Austrian nationality question) Originally published: Vienna, published under pseudonym Synopticus on the author’s own expenses in 1899 Language: GermanThe excerpts used are from Ephraim Nimni ed., National Cultural Autonomy and its Contemporary Critics (London and New York: Routledge, 2005), pp. 27–32. About the author Karl Renner [1870, Unter-Tannowitz (Cz. Dolni Dunajovice, present-day Czech Republic..
State and nation
No full textTitle: Staat und Nation. Zur österreichischen Nationalitätenfrage (State and nation. To the Austrian nationality question) Originally published: Vienna, published under pseudonym Synopticus on the author’s own expenses in 1899 Language: GermanThe excerpts used are from Ephraim Nimni ed., National Cultural Autonomy and its Contemporary Critics (London and New York: Routledge, 2005), pp. 27–32. About the author Karl Renner [1870, Unter-Tannowitz (Cz. Dolni Dunajovice, present-day Czech Republic..
Amon Carter Museum of Western Art; Frederic G. Renner, with Mrs. Renner, and Mrs. J. Lee
No full textFrederic G. Renner, author of Charles M. Russell: Paintings, Drawings and Sculpture in the Amon G. Carter Collection, who was honored at a reception in Amon Carter Museum of Western Art, admires color work in the book with his wife, left, and Mrs. J. Lee Johnson III. Mrs. Johnson wrote the book\u27s introduction. The entire collection, pictured in the $17.50 book, is on display at the museum in a special exhibition. Fort Worth Star-Telegram Evening edition September 27, 1966.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/3396/thumbnail.jp
VIBRATION-ROTATION HAMILTONIANS AND THE RENNER-TELLER EFFECT
No full textAuthor Institution: University Chemical LaboratoryA variational method for the determination of vibronic energy levels of Renner-Teller triatomic molecules is introduced. The form of the hamiltonian and the expansion functions will be discussed. Applications to and will be presented, which include a full treatment of bend-stretch interactions and anharmonic effects. The form of vibrational hamiltonians in internal coordinates is discussed
A VARIATIONAL TREATMENT OF THE RENNER-TELLER EFFECT
No full textG. Osmann. P. R. Bunker, P. Jensen, R. J. Buenker, J. P. Gu and G. Hirsch, J. Mol. Spectrosc, 197 262(1999), and references therein. Section 13.4.1 of the book Molecular Symmetry and Spectroscopy, 2nd Edition, by P. R. Bunker and P. Jensen, NRC Research Press, Ottawa 1998. See http://www.nrc.ca/cisti/journals/41653 for the table of contents and ordering information. P. Jense, J. Mol. Spectrosc. 128, 478 (1988); 132, 429 (1988). J. T. Hougen, P. R. Bunker and J. W. C. Johns, J. Mol. Spectrosc, 34, 136 (1970). G. Oxmann, P. R. Bunker, P. Jensen, and W. P. Kraemer, Chem. Phys. 225, 33 (1997).Author Institution: Steacie Institute for Molecular Sciences, National Research Council of Canada; FB 9-Theoretische Chemie, Bergische Universit\""{a}t -Gesamthochschule Wuppertal, D.42097For a triatomic molecule we have developed a rovibronic Hamiltonian that allows for the Renner-Teller effect (i.e., for the effect of electronic angular . The Hamiltonian is based on the MORBID Hamiltonian developed by which itself is based on the Hougen-Bunker-Johns . We determine the eigenfunctions and eigenvalues of this Hamiltonian in a variational manner, and the computer program we have developed is called RENNER; we have used RENNER to calculate the rovibronic energies of and other molecules. As well as calculating rovibronic energies from potential energy surfaces we are able to calculate intensities from dipole moment surfaces, and we can simulate spectra that involve electronic states subject to the Renner-Teller effect. Although there is a breakdown of the Born-Oppenheimer approximation one can still understand the situation using potential energy curves and dipole moment surfaces, but the shapes of the potential energy curves and dipole moment surfaces depend on the value of the rotational quantum number . This will be explained using our results for the molecule as an $example^{e}.
- …
