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  • 1
    Electronic Resource
    Electronic Resource
    Negative ion production in collisions between K(nd) Rydberg atoms and CF3Br and CF2Br2 (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 92 (1990), S. 1672-1676 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Negative ion production via electron transfer in collisions between K(nd) Rydberg atoms and CF3Br and CF2Br2 has been investigated over a wide range of of n (10≤n≤70). For both species, the major negative ion observed is Br−, although with CF2Br2, a small Br−2 signal is also detected. Kinematic studies show that Br− production via dissociative attachment is accompanied by sizable translational energy release (∼0.35 eV for CF3Br; ∼0.2 eV for CF2Br2). These studies further show that, despite this large energy release, post-attachment interactions between the product ions are important at intermediate values of n(n(approximately-less-than)20) and suggest that the transient CF3Br−@B| and CF2Br2−* ions initially formed by electron capture have quite different lifetimes against dissociation. Cross sections for free-electron attachment to both species are derived from measurements of rate constants for electron transfer at high n. These cross sections are in reasonable agreement with results obtained in free-electron studies using the threshold photoelectron spectroscopy technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458048
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  • 2
    Electronic Resource
    Electronic Resource
    Semiclassical model for analysis of dissociative electron transfer reactions involving Rydberg atoms (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 8669-8675 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Collisions between atoms in high Rydberg states and molecules that dissociatively attach free low-energy electrons can lead to ionization through capture of the excited electron by the target molecule. A Monte Carlo code is described that models the detailed kinematics of such dissociative electron transfer reactions. The model takes into account the velocity distributions of the reactants, the lifetime and decay energetics of the transient intermediate negative ion, and the electrostatic interaction between the product positive and negative ions. Data for CF3I are presented that illustrate how detailed comparisons between model predictions and experimental data can lead to a better understanding of the dynamics of dissociative electron attachment reactions. In particular, such comparisons can provide estimates of the lifetime of the intermediate negative ions and show how the excess energy of reaction is partitioned between translational and internal degrees of freedom in the dissociation process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.459253
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  • 3
    Electronic Resource
    Electronic Resource
    Rydberg-atom destruction in collisions with electron attaching targets at low-to-intermediate n (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 92 (1990), S. 285-287 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Semiclassical model calculations of rate constants for Rydberg-atom destruction through electron transfer in collisions between K(nd) atoms and CF3I and SF6 are presented. The calculated rate constants are in good agreement with experimental data, but at low-to-intermediate values of n fall below those expected on the basis of the simple free-electron model. Reasons for this apparent discrepancy are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458475
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  • 4
    Electronic Resource
    Electronic Resource
    Proposing an architectural framework of a hybrid knowledge-based system for production rescheduling (1999)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 16 (1999), S. 0 
    Details
    ISSN: 1468-0394
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Notes: An architectural configuration of a knowledge-based system for production rescheduling reported in this paper uncovers a number of points of interest to practitioners as well as researchers. The study shows that knowledge-based methods applied to production rescheduling are a valuable approach for manufacturers to manage production disturbances and deliver customer orders on time. Very often, developing an effective scheduling system whilst solving some problems requires an appropriate combination of a rigorous analysis of the production system state and the rules of thumb used by the human scheduler. In the actual performance of this hybrid system, an expert simulation system was used to produce new schedules that fit the real production environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1468-0394.00119
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  • 5
    Electronic Resource
    Electronic Resource
    An analysis of sources of competitiveness and performance of Chinese manufacturers (2000)
    Bingley : Emerald
    International journal of operations & production management 20 (2000), S. 299-315 
    Details
    ISSN: 0144-3577
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: An exploratory model of competence and performance is presented and tested in the study. Competence in marketing, product innovation, manufacturing, and human resource development across a list of 42 items have been analyzed. Marketing competence was ranked high by Chinese managers. Elements contributed to manufacturing competence regarding process reengineering have not been emphasized as much by Chinese managers. Human resource competence, on the other hand, has been found to be significantly correlated with performance. The results clearly show a trend moving from the state-planned economy to the market economy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/01443570010294307
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  • 6
    Electronic Resource
    Electronic Resource
    The role of technology and quality on hospital financial performance: An exploratory analysis (2000)
    Bingley : Emerald
    International journal of service industry management 11 (2000), S. 202-224 
    Details
    ISSN: 0956-4233
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: The stimulus for this research is that as US hospitals and health care organizations become more competitive, wise investments in technology and quality improvement are keys to financial success and survival. A structural equation model is hypothesized using the following five constructs: clinical technology; information technology; clinical quality; process quality; and hospital financial performance. No research to date has examined the relationships between the type of technology, the type of quality, and hospital financial performance. The general research hypothesis tested is that hospital technology directly drives (affects) quality and hospital financial performance. The results indicate that the type of hospital technology (clinical or information) drives different types of quality-related performance (clinical or process), and directly and indirectly affects hospital financial performance. The simple recursive model documented here is an important first step to defining more complete models that accurately predict hospital financial performance as a function of technology and quality investments and initiatives. The article concludes by summarizing results, discussing their implications, and proposing future research ideas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09564230010340715
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  • 7
    Electronic Resource
    Electronic Resource
    Cloning and identification of the pig ribosomal gene promoter
    Amsterdam : Elsevier
    Gene 150 (1994), S. 375-379 
    Details
    ISSN: 0378-1119
    Keywords: Transcription ; polymerase chain reaction ; rRNA
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-1119(94)90456-1
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  • 8
    Electronic Resource
    Electronic Resource
    Diffusion of point defects in two-dimensional colloidal crystals (2001)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 413 (2001), S. 147-150 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Uniform colloidal microspheres dispersed in a solvent will, under appropriate conditions, self-assemble into ordered crystalline structures. Using these colloidal crystals as a model system, a great variety of problems of interest to materials science, physical chemistry, and condensed-matter ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35093077
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  • 9
    Electronic Resource
    Electronic Resource
    The role of inversion transitions in K(150p)/NH3, ND3 collisions (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 2486-2487 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Data for K(150p)/NH3, ND3 collisions are presented showing that near-resonant energy transfer associated with transitions between different inversion levels of the target is an important process leading to collisional state changing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.464181
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  • 10
    Electronic Resource
    Electronic Resource
    Use of the Stark effect to minimize residual electric fields in an experimental volume (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 3649-3650 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A technique based on the Stark effect is described that allows the residual electric field in a small experimental volume to be systematically reduced to (approximately-less-than)50 μV cm−1. Although developed initially to allow production of Rydberg atoms in states with very large values of principal quantum number n, it will also permit high resolution studies involving near threshold photoionization or very low-energy free electrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144246
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