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Showing 1 to 20 of 56 for “"NAH"”.

  1. Nah-Infrarot-Spektroskopie für die schnelle Polymeranalytik und die zerstörungsfreie Evaluierung von Materialeigenschaften

    Marquardt, Jürgen

    … fingerprint Charakterisierungsmethoden mittels Nahinfrarot-Spektroskopie (NIR) in Kombination mit multivariater Datenanalyse als Grundvoraussetzung für das im Rahmen dieser Arbeit neu etablierte High-Output Polymer Screening (HOPS). HOPS steht dabei für die an die an die Bedürfnisse der …

    freiburg-diss Repository record

  2. al-Misbāh fī al-Nahw By Nāsir al-Dīn al-Mutarrizī al-Nahwī (d. 610/1213) A Critical Edition of the Text with the Life History of the Author

    Abid, Muhammad-AfzalDurham University2010

    Nāsir al-Dīn al-Mutarrizī al-Nahwī (d.610/1213) was one of the most renowned figures in the field of Arabic Grammar. He has left an indelible mark on the world of Arabic language and literature. He is also known as the successor of al-Zamakhsharī. He wrote a number of books but his al-Misbāh …

    durham Repository record

  3. Helmholtz Equation Least Squares Based Near-Field Acoustic Holography With Laser

    Zhu, Wu2016

    <p>This dissertation presents the HELS based NAH with laser and use normal surface velocity as input in near-field acoustic holography. The conventional HELS based NAH uses acoustic pressure as input to reconstruct sound field quantities, while this modified HELS based NAH with laser utilizes the …

    wayne-thes Repository record

  4. Development of an Energy-Based Nearfield Acoustic Holography System

    Harris, Michael C.2005

    … of the nearfield acoustic holography (NAH) approach. Conventional NAH consists of first capturing pressure data on a two-dimensional conformal measurement contour in the nearfield of the radiating source. These data are then propagated back to the vibrating structure to obtain the …

    byu Repository record

  5. Carbanionisch vermittelte „Methylen“-Insertionen mit N,N-Dimethylformamid als C1-Synthon

    Lederer, AlexanderUniversität Heidelberg

    … Obwohl bei den Umsetzungen der Amide mit NaH in DMF unter Argon in einem Temperaturbereich von 20-154 °C keine Produkte gewonnen werden konnten, die auf SET-gestützte Reaktionsfolgen zurückzuführen waren, entstanden zahlreiche Verbindungen, deren Bildungssequenzen auf außergewöhnlichen …

    heid-diss Repository record

  6. Reconstruction Resolution Of Coherent Point Sources With Helmholtz Equation Least Squares

    Dziklinski, Richard Edward2011

    … in violation of Nearfield Acoustical Holography (NAH) resolution guidelines. In HELS, the Helmholtz equation is solved by matching a series of localized spherical expansion functions to the measured pressures in the field. Expansion coefficients are solved for by least squares and used to …

    wayne-thes Repository record

  7. The Effect of Nonlinear Propagation on Near-field Acoustical Holography

    Shepherd, Micah Raymond2007

    <p>Near-field acoustical holography (NAH) has been used extensively for acoustical imaging of infinitesimal-amplitude (or small-amplitude) sources. However, recent interests are in the application of NAH to image finite-amplitude (or high-amplitude) sources such as jets and rockets. Since NAH is …

    byu Repository record

  8. Carbon Dioxide Fixation in Schistosoma Mansoni

    Carter, Clint Earl

    … acid. To this medium was added 10 μc of either NaH<sup>14</sup>0<sub>3</sub>, glucose-UC<sup>14</sup> or aspartate-4-C<sup>14</sup>. The worms were found to fix carbon from the NaH<sup>14</sup>0<sub>3</sub> and to incorporate the glucose and aspartate. The amount of activity recovered in five …

    loma-linda Repository record

  9. Synthetic and structural studies on early transition metal siloxides

    Jones, Robert EdwardDepartment of Chemistry1993

    … and n-Bu3SiCI. Reactions of n-Bu3SiOH with NaH, LiBun, MC15 (M = Ta or Mo) and Cp2MCl2 (Cp = 115-C5H5, M = Ti or Zr) were investigated, in some cases using the base Et3N as a hydrogen chloride acceptor. Na+(QSiPh3r was prepared from the reaction of Ph3SiOH with NaH, but in poor yield. …

    cape-town Repository record

  10. Synthesis and Characterization of Cyclopentadienyl Transition Metal Complexes Bearing Tetrafluoropyridyl Substituents

    Warren, Andrea D.Virginia Tech2001

    … cyclopentadienide (NaCp) in THF with excess NaH present afforded mixtures of (4-tetrafluoropyridyl)cyclopentadiene (1), 1,3-bis(tetrafluoropyridylcyclopentadiene) (2), and 1,2-bis(tetrafluoropyridylcyclo-pentadiene) (3). Selectivity for mono- and diarylation was controlled by varying the …

    vt Repository record

  11. Molecular and Genetic Relationships of Aromatic Metabolic Plasmids in Pseudomonads

    Farrell, Roberta LeeUniversity of Illinois at Urbana-Champaign2014

    … for growth on the substrates naphthalene, NAH, salicylate, SAL, xylene and toluene, XYL and TOL. Naphthalene and xylene dissimilation pass through salicylate and toluate as intermediates to converge at catechol or its methylated derivative. Catechol is further dissimilated, through the …

    uiuc Repository record

  12. Synthesis of novel heterocyclic difluoro monomers via the chemistry of reissert compounds

    Grisle, Roger AnthonyVirginia Tech1992

    … aforementioned compounds were rearranged using NaH/THF to produce the desired diketones. Finally, difluorotetraketone monomers were produced by oxidation of the benzylic methylenes of the diketones. These reactions were evaluated by FTI R and 1 HNMR. These new activated heterocyclic …

    vt Repository record

  13. Reactivity studies of phosphoric amides and esters

    Davidowitz, BetteDepartment of Chemistry1984

    … conditions of electrophilic (Ag+) and basic (NaH) catalysis. 1,3-Substitution by the nitrogen atom of the phosphdramidates, yielding ethylenimine derivatives was found to be the preferred reaction-pathway; the alternative 1,5-reaction involving the amide nittogen or phosphoryl oxygen atoms was …

    cape-town Repository record

  14. Single atom detection in low finesse cavities

    Haase, AlbrechtUniversität Heidelberg

    … wurde durchgeführt. Indem man den Resonator sehr nah am konzentrischen Punkt betreibt, kann dessen Fokusbreite auf 12µm reduziert werden, bei einer Finesse von 1200. Diese Parameter liegen in der gleichen Größenordnung wie die eines Faserresonators. Experimente mit Atomen, die frei durch den …

    heid-diss Repository record

  15. The synthesis of sterically demanding ligands and examples of their copper complexes

    Rieth, Ryan D., 1978-Massachusetts Institute of Technology2004

    … imidazolinium tetrafluoroborate salt, NaH, and CuCl (L = [1,3-bis-(2,4,6,2",4",6"-hexaisopropyl- [1,1':3',1"]terphenyl-5'-yl)-4,5-dihydroimidazol-2-ylidene]). The LCuOAc complex (71% isolated yield) was made the same way using CuOAc in place of CuCl.

    mit Repository record

  16. Selbstaggregierende Multischichten : Alkyl-Siloxane auf Biphenylthiol-Modelloberflächen

    Stoycheva, SvetlanaUniversität Heidelberg

    … auf Gold (111) bilden, in der die Moleküle nah zur Oberflächennormalen orientiert sind. Die gemischten HMBP/MMBP-Monoschichten haben sich als ein geeignetes System zur präzisen Modifizierung der Hydrophobizität einer Goldoberfläche erwiesen. Für die Qualität der darauf adsorbierten …

    heid-diss Repository record

  17. Part I: Synthesis of Aromatic Polyketones Via Soluble Precursors Derived from Bis(A-Amininitrile)S; Part Ii: Modifications of Epoxy Resins with Functional Hyperbranched Poly(Arylene Ester)s

    Yang, JinlianVirginia Tech1998

    … with activated dihalides using NaH as base in DMF yielded soluble, high molecular weight polyaminonitriles, which were hydrolyzed in acidic conditions to produce the corresponding polyketones. A novel approach to the synthesis of high molecular weight wholly aromatic polyketones …

    vt Repository record

  18. Sprachliche und soziale Normen : quantitative Studie zum Einfluss von Abweichungen des sprachlichen Standards und ethnisch markierten Vornamen bei der Leistungsbewertung von Schulaufsätzen

    John, LindaUniversität Potsdam

    … einer Vorstellung darüber abhängt, wie weit oder nah entfernt der oder die betreffende Schüler*in zur sprachlichen und sozialen Norm steht.

    potsdam-thes Repository record

  19. Körperoszillation und Schallabstrahlung akustischer Wellenleiter unter Berücksichtigung von Wandungseinflüssen und Kopplungseffekten : Verändern Metalllegierung und Wandungsprofil des Rohrresonators den Klang der labialen Orgelpfeife?

    Bergweiler, SteffenUniversität Potsdam

    … vier mal zehn Testpfeifen durchgeführt. Mit Ausnahme der beschriebenen Unterschiede sind die Pfeifen von gleichen Abmessungen und auf gleichen Klang intoniert. Die Überprüfung der Wandungseinflüsse auf den Klang besteht aus drei verschiedenen Untersuchungen: Erstens, einer subjektiven …

    potsdam-diss Repository record

  20. The manufacture of monosodium phosphate from wet process acid by amine extraction

    Price, Roger Nelson DaveyDepartment of Chemical Engineering1974

    Monosodium phosphate (NaH₂PO₄) may be prepared from a mixture of phosphoric acid and sodium chloride on the principle that an amine in organic solution can extract the elements of hydrochloric acid (HCl). This is possible because amines are more selective for hydrochloric than for phosphoric acid. …

    cape-town Repository record

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