Search Results - (Author, Cooperation:D. Fischer)
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1Latest Papers from Table of Contents or Articles in PressJames K.R. Stevenson, Matthew C. Cheung, Craig C. Earle, Hadas D. Fischer, Ximena Camacho, Refik Saskin, Baiju R. Shah, Peter C. Austin, Simron Singh
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-01-10Publisher: Wiley-BlackwellPrint ISSN: 0008-543XElectronic ISSN: 1097-0142Topics: BiologyMedicinePublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-08-17Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Botany, Ecology, Online OnlyPublished by: -
3Latest Papers from Table of Contents or Articles in PressL. R. Doyle ; J. A. Carter ; D. C. Fabrycky ; R. W. Slawson ; S. B. Howell ; J. N. Winn ; J. A. Orosz ; A. Prsa ; W. F. Welsh ; S. N. Quinn ; D. Latham ; G. Torres ; L. A. Buchhave ; G. W. Marcy ; J. J. Fortney ; A. Shporer ; E. B. Ford ; J. J. Lissauer ; D. Ragozzine ; M. Rucker ; N. Batalha ; J. M. Jenkins ; W. J. Borucki ; D. Koch ; C. K. Middour ; J. R. Hall ; S. McCauliff ; M. N. Fanelli ; E. V. Quintana ; M. J. Holman ; D. A. Caldwell ; M. Still ; R. P. Stefanik ; W. R. Brown ; G. A. Esquerdo ; S. Tang ; G. Furesz ; J. C. Geary ; P. Berlind ; M. L. Calkins ; D. R. Short ; J. H. Steffen ; D. Sasselov ; E. W. Dunham ; W. D. Cochran ; A. Boss ; M. R. Haas ; D. Buzasi ; D. Fischer
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-09-17Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressS. Sharma, B. P. Acharya, A. H. N. C. De Silva, N. W. Parris, B. J. Ramsey, K. L. Romans, A. Dorn, V. L. B. de Jesus, and D. Fischer
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-04-26Publisher: American Physical Society (APS)Print ISSN: 1050-2947Electronic ISSN: 1094-1622Topics: PhysicsKeywords: Atomic and molecular processes in external fields, including interactions with strong fields and short pulsesPublished by: -
5Latest Papers from Table of Contents or Articles in PressW. J. Borucki ; E. Agol ; F. Fressin ; L. Kaltenegger ; J. Rowe ; H. Isaacson ; D. Fischer ; N. Batalha ; J. J. Lissauer ; G. W. Marcy ; D. Fabrycky ; J. M. Desert ; S. T. Bryson ; T. Barclay ; F. Bastien ; A. Boss ; E. Brugamyer ; L. A. Buchhave ; C. Burke ; D. A. Caldwell ; J. Carter ; D. Charbonneau ; J. R. Crepp ; J. Christensen-Dalsgaard ; J. L. Christiansen ; D. Ciardi ; W. D. Cochran ; E. DeVore ; L. Doyle ; A. K. Dupree ; M. Endl ; M. E. Everett ; E. B. Ford ; J. Fortney ; T. N. Gautier, 3rd ; J. C. Geary ; A. Gould ; M. Haas ; C. Henze ; A. W. Howard ; S. B. Howell ; D. Huber ; J. M. Jenkins ; H. Kjeldsen ; R. Kolbl ; J. Kolodziejczak ; D. W. Latham ; B. L. Lee ; E. Lopez ; F. Mullally ; J. A. Orosz ; A. Prsa ; E. V. Quintana ; R. Sanchis-Ojeda ; D. Sasselov ; S. Seader ; A. Shporer ; J. H. Steffen ; M. Still ; P. Tenenbaum ; S. E. Thompson ; G. Torres ; J. D. Twicken ; W. F. Welsh ; J. N. Winn
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-04-20Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Exobiology ; Extraterrestrial Environment ; Models, Theoretical ; *Planets ; Stars, Celestial ; *WaterPublished by: -
6Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2012-06-23Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
7SSOARMendius, Hans Gerhard ; Heidling, Eckhard ; Moll, K. ; Fischer, D. ; Drechsel, E.R. ; Wermuth, G. ; Fexer, H.
DEU
Published 2010Staff View FulltextPublication Date: 2018-07-27Keywords: Wirtschaft ; Economics ; Economic Sectors ; Business Administration ; Wirtschaftssektoren ; Betriebswirtschaftslehre ; Bundesrepublik Deutschland ; Gewerbe ; Mittelbetrieb ; Kraftfahrzeugindustrie ; Innovation ; Betrieb ; Kooperation ; Vertrieb ; Kleinbetrieb ; Modernisierung ; modernization ; innovation ; industry ; Federal Republic of Germany ; small business ; medium-sized firm ; sales ; firm ; cooperation ; automobile industry ; empirisch ; anwendungsorientiert ; empirical ; applied researchType: final report, Abschlussbericht -
8FIS Bildung LiteraturdatenbankStaff View
Type of Medium: articlePublication Date: 1981Keywords: Geistige Behinderung ; Sonderpädagogik ; SonderschuleIn: Das behinderte Kind, Bd. 18 (1981) H. 1, S. 69-71, 0005-7991Language: German -
9Latest Papers from Table of Contents or Articles in PressJ. Ziegler, R. Kozlovsky, C. Gorini, M.-H. Liu (劉明豪), S. Weishäupl, H. Maier, R. Fischer, D. A. Kozlov, Z. D. Kvon, N. Mikhailov, S. A. Dvoretsky, K. Richter, and D. Weiss
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-01-30Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Electronic structure and strongly correlated systemsPublished by: -
10Latest Papers from Table of Contents or Articles in PressNing, J., Zhong, Z., Fischer, D. K., Harris, G., Watkins, S. C., Ambrose, Z., Zhang, P.
The American Society for Microbiology (ASM)
Published 2018Staff ViewPublication Date: 2018-06-14Publisher: The American Society for Microbiology (ASM)Print ISSN: 0022-538XElectronic ISSN: 1098-5514Topics: MedicinePublished by: -
11Latest Papers from Table of Contents or Articles in PressP. Fischer, D. Harsch, J. Heingärtner, Y. Renkci and P. Hora
Institute of Physics (IOP)
Published 2018Staff ViewPublication Date: 2018-09-22Publisher: Institute of Physics (IOP)Print ISSN: 1757-8981Electronic ISSN: 1757-899XTopics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPublished by: -
12Latest Papers from Table of Contents or Articles in PressR. Wadsworth, N. S. Kelsall, D. G. Jenkins, I. Ragnarsson, S. M. Fischer, D. P. Balamuth, P. A. Hausladen, G. C. Ball, M. P. Carpenter, R. V. F. Janssens, T. Lauritsen, C. J. Lister, D. Seweryniak, R. M. Clark, P. Fallon, A. O. Macchiavelli, C. E. Svensson, S. J. Freeman, and D. G. Sarantites
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-08-22Publisher: American Physical Society (APS)Print ISSN: 0556-2813Electronic ISSN: 1089-490XTopics: PhysicsKeywords: Nuclear StructurePublished by: -
13Articles: DFG German National LicensesFischer, D. W. ; Manasreh, M. O. ; Talwar, D. N. ; Matous, G.
[S.l.] : American Institute of Physics (AIP)
Published 1993Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have performed isochronal annealing experiments on the hydrogen-related local vibrational modes (LVMs) created by proton and deuteron implantation of InP. Implanted samples were annealed in 50 °C increments in the 200–600 °C temperature range for 30 min each and then measured by infrared absorption. A group of four different LVMs is observed, each of which arises from the hydrogen-phosphorus stretching vibration with different defects or impurities at nearest-neighbor sites. Each LVM exhibits an annealing behavior that is different than any of the other LVMs. The annealing results are shown and discussed in relation to the possible microscopic structure of the defect responsible for each LVM.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesFischer, D. W. ; Manasreh, M. O. ; Matous, G.
[S.l.] : American Institute of Physics (AIP)
Published 1992Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have introduced hydrogen into single crystal InP:Fe by implanting samples with 2 MeV protons and/or deuterons at fluences between 1×1016 and 5×1017 cm−2. This results in the creation of four local vibrational modes (LVMs) in infrared absorption which are all due to the stretching vibration of bonds formed between phosphorous and the implanted atom with various lattice defects or impurities at nearest-neighbor sites. Our implant-created LVMs are much sharper than those reported by previous workers and we observe two additional well separated peaks. The two main LVMs show a strong fluence dependence and are probably associated with lattice defects. The two weakest LVMs are not as fluence-dependent and may be associated with impurities. Two samples were implanted with both protons and deuterons in an attempt to observe the formation of complexes containing both isotopes, but no evidence of such complexes could be found.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: In a previous report we showed the effect of photoquenching the EL2 donor in GaAs on the carbon acceptor electronic absorption and local vibrational mode (LVM) absorption spectra. We agree that for the sample used to illustrate these effects, only a small portion (9% or less) of the total carbon was neutralized by the photoquench. Other samples have been studied, however, in which a much larger fraction (30% or more) of the carbon has been neutralized with no effect on the carbon LVM. We therefore maintain that our previous conclusion, i.e., a change in the charge state of carbon has no significant effect on the LVM structure, is still valid.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We use infrared absorption spectroscopy to study both the electronic excitation and the local vibrational mode (LVM) of the carbon acceptor in semi-insulating GaAs as a function of EL2 photoquenching. The behavior of the far-infrared electronic lines shows that the normally compensated carbon becomes neutralized (i.e., changes its charge state from singly negative to neutral) when the EL2 absorption is photoquenched. At the same time, the LVM absorption band shows no change in spectral form or vibrational frequency of its fine structure after photoquenching which indicates that, contrary to expectations, a charge-state change has no measurable effect on this band.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesHobgood, H. M. ; Henningsen, T. ; Thomas, R. N. ; Hopkins, R. H. ; Ohmer, M. C. ; Mitchel, W. C. ; Fischer, D. W. ; Hegde, S. M. ; Hopkins, F. K.
[S.l.] : American Institute of Physics (AIP)
Published 1993Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The growth of ZnGeP2 by the liquid encapsulated Czochralski method is reported for the first time herein. Large boules of ZnGeP2, with diameters up to 40 mm and weights up to 400 gm were grown by Czochralski pulling from B2O3 encapsulated melts under high pressure (20 atm Ar) using axial gradients ≤120 °C/cm. Boules pulled at ≤4 mm/h exhibited large (50×20×15 mm3) monocrystalline grains of α-phase ZnGeP2 with room temperature electrical properties of p-type conduction, carrier concentrations ranging from 1012 to 1016 cm−3, and mobilities of 20 cm2/V s or less. Optical samples exhibited broad IR transmission (0.7 to 12.5 μm), second harmonic generation at 4.7 μm with 7.2% conversion efficiency, a broad subband gap photoluminescence signature, and near band-edge absorption similar to that observed in Bridgman-grown ZnGeP2.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesZaera, F. ; Fischer, D. A. ; Carr, R. G. ; Gland, J. L.
College Park, Md. : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: We have derived theoretical expressions for the incident beam angular dependence of the absorption cross section for ethylene chemisorbed on single crystal surfaces with linearly polarized light. The changes in the π and σ resonance intensities for C 1s near-edge x-ray absorption fine structure (NEXAFS) spectra can be related to the geometry of chemisorption relative to the surface. The derived equations have been used to analyze experimental data in order to determine the structure of chemisorbed ethylene on Ni(100). At low temperatures ethylene bonds with the molecular axis parallel to the surface but with the molecular plane tilted 50°. The geometry of vinyl fragments formed by annealing the crystal to 180 K was also determined. The C–C bond is bent 35° from the surface normal in this case, with the plane of the molecule tilted by 65°.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesFischer, D. W. ; Ohmer, M. C. ; Schunemann, P. G. ; Pollak, T. M.
[S.l.] : American Institute of Physics (AIP)
Published 1995Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The birefringence (Δn) of ZnGeP2 has been measured directly from polarized light interference spectra obtained in transmittance over the 0.66–12 μm wavelength range from samples of six different thicknesses. The Δn values were determined from the positions of fringe maxima (Δn=kλ/t) and then compared to previously published data which were obtained by a different technique. It was found that the interference fringe method results in values of Δn accurate to ±0.00005. The data are shown to exhibit much less scatter as a function of wavelength than previous results and can lead to more accurate calculations of phase-matching angles for second-harmonic generation applications. © 1995 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesFukumoto, Y. ; Moodenbaugh, A. R. ; Suenaga, M. ; Fischer, D. A. ; Shibutani, K. ; Hase, T. ; Hayashi, S.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Effects of oxygen partial pressure PO2 during low temperature postheat treatments on the superconducting properties of silver-sheathed Bi2Sr2CaCu2Oy tapes were investigated. The critical temperature Tc of the resulting tapes changes systematically with PO2. This variation of Tc is attributed to the change of electronic carrier (hole) concentration by the observation of oxygen K-edge absorption spectra. The intragranular critical current density Jc is essentially unaffected by the heat treatment, while deterioration in grain connectivity is observed in the specimens treated in reduced-oxygen atmospheres. The change of anisotropy in Jc with respect to crystallographic orientations is also quite small for the variation of PO2. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: