8,069 research outputs found
The Influence of Marketing Journals: A Citation Analysis of the Discipline and its Sub-areas
An important characteristic of journals is how influential they are in the generation and dissemination of scholarly knowledge in a discipline.We report a citation analysis of 49 marketing and marketing-related journals to assess their relative influence based on the index of structural influence proposed by Salancik (1986).We investigate the level and span of influence of the 49 journals, both in the marketing discipline as a whole and in five specific sub-areas of marketing.As expected, the Journal of Marketing emerges as the most influential journal in the discipline and as the journal with the broadest span of influence across all sub-areas of marketing.However, different journals are most influential in each of the sub-areas, and the Journal of Marketing is particularly influential among the applied marketing journals.We also find that the index of structural influence is significantly correlated with all other measures of influence but least so with the impact factors reported in the Social Sciences Citation Index.marketing;citation analysis
Spectral theorem for the Lindblad equation for quadratic open fermionic systems
The spectral theorem is proven for the quantum dynamics of quadratic open
systems of n fermions described by the Lindblad equation. Invariant eigenspaces
of the many-body Liouvillean dynamics and their largest Jordan blocks are
explicitly constructed for all eigenvalues. For eigenvalue zero we describe an
algebraic procedure for constructing (possibly higher dimensional) spaces of
(degenerate) non-equilibrium steady states.Comment: 19 pages, no figure
Federal Jurisdiction over State Claims to Shipwrecks: Should the Eleventh Amendment Go Down with the Ship?
The Eleventh Amendment prohibits citizens from bringing actions in law or equity against individual states in federal courts. The Amendment does not address whether states are subject to federal jurisdiction for actions in admiralty in which both a shipwreck salvor and a state claim title to a shipwreck Analyzing applicable admiralty, federal, and common law in the context of Eleventh Amendment jurisprudence, this Note examines whether the states are subject to pure admiralty actions in federal court by citizen-salvors seeking either title to or reward for salvaging a shipwreck. The original intentions of admiralty law: rewarding salvors for their efforts, uniformity, and encouraging the recovery and preservation of shipwrecked property, are considered in answering this jurisdictional question. The Eleventh Amendment remains afloat to protect states from some admiralty actions, but there are circumstances in which federal courts should have jurisdiction over citizens and states competing for claim to shipwrecks
A method of fuel testing in a CFR engine
At the present time, only a very small fraction of motor fuels produced for domestic use in the United States contain any alcohol in their blends. Soma foreign markets, notably the Philippine Islands and South American Countries use high proportions of alcohol in their motor fuel blends. Special purpose fuels in the United States which have alcohol blended with other compounds, have been used for engines from which maximum horsepower output is imperative. An example of this type of motor fuel blend might be found in the competitive motor sports involving motorcycles, stock automotive equipment, and special racing equipment.
An extensive survey of literature brought to light the lack of scientific information and basis for proper blending of alcohol blend fuel mixtures. The most apparent information in the literature was the lack of any scientific approach to the compounding of these fuels. The author considers that this lack of scientific background is due to the difficulty of providing a satisfactory testing procedure to follow in making such an evaluation.
This thesis reports the work involved in (a) preparing a suitable test engine for use in fuel research, (b) calibrating the associated equipment, (c) taking data, and (d) evaluating the resultant data in the light of the objective of the tests.
A standard ASTM-CFR single cylinder fuel research engine was used as the basic engine, with necessary modifications to achieve as near actual operating conditions as possible and still allow maximum control over all the variables. These modifications and the reasons for them are described in detail in the discussion section under the preparation of the test engine.
A piezoelectric crystal pickup was used to determine the cylinder pressures of the engine by electrically amplifying its output and using this output to drive an oscilloscope. The amplifier contained a special pressure evaluating device, and it, along with the pickup were calibrated as described in the discussion under the calibration of associated equipment.
Once the engine was prepared and the associated equipment calibrated, the taking of data was begun in a relatively straight forward manner. However, since the data was taken over a period of time but was evaluated all at one time, it was necessary to maintain rigid control over the variables and the calibrations as the data was taken. The necessary steps and precautions are described in the discussion under the section of operation and data taking --Introduction, pages 1-2
Hierarchic Superposition Revisited
Many applications of automated deduction require reasoning in first-order
logic modulo background theories, in particular some form of integer
arithmetic. A major unsolved research challenge is to design theorem provers
that are "reasonably complete" even in the presence of free function symbols
ranging into a background theory sort. The hierarchic superposition calculus of
Bachmair, Ganzinger, and Waldmann already supports such symbols, but, as we
demonstrate, not optimally. This paper aims to rectify the situation by
introducing a novel form of clause abstraction, a core component in the
hierarchic superposition calculus for transforming clauses into a form needed
for internal operation. We argue for the benefits of the resulting calculus and
provide two new completeness results: one for the fragment where all
background-sorted terms are ground and another one for a special case of linear
(integer or rational) arithmetic as a background theory
Effects of Neutron Irradiation on Pinning Force Scaling in State-of-the-Art Nb3Sn Wires
We present an extensive irradiation study involving five state-of-the-art
Nb3Sn wires which were subjected to sequential neutron irradiation up to a fast
neutron fluence of 1.6 * 10^22 m^-2 (E > 0.1 MeV). The volume pinning force of
short wire samples was assessed in the temperature range from 4.2 to 15 K in
applied fields of up to 7 T by means of SQUID magnetometry in the unirradiated
state and after each irradiation step. Pinning force scaling computations
revealed that the exponents in the pinning force function differ significantly
from those expected for pure grain boundary pinning, and that fast neutron
irradiation causes a substantial change in the functional dependence of the
volume pinning force. A model is presented, which describes the pinning force
function of irradiated wires using a two-component ansatz involving a
point-pinning contribution stemming from radiation induced pinning centers. The
dependence of this point-pinning contribution on fast neutron fluence appears
to be a universal function for all examined wire types.Comment: 8 page
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