4,095 research outputs found
Consumer behaviour in agricultural direct marketing
Scandals in the food production industry have caused an uncertainty about quality and innocuousness of food for many consumers. This resulted in a strong risk perception of consumers at the point of sale. The direct marketing of products by farmers can be an important way to strengthen consumer confidence. In this contribution, buying behaviour is examined by an observation and a following interview. We develop an econometric model about the number of bought products and the proposition of marketing strategies which can be recommended to farmers involved in direct marketing.Consumer behaviour, direct marketing, observation, econometric model,
Analysis of space vehicle structures using the transfer-function concept
Analysis of large complex systems is accomplished by dividing it into suitable subsystems and determining the individual dynamical and vibrational responses. Frequency transfer functions then determine the vibrational response of the whole system
Landau level spectroscopy of ultrathin graphite layers
Far infrared transmission experiments are performed on ultrathin epitaxial
graphite samples in a magnetic field. The observed cyclotron resonance-like and
electron-positron-like transitions are in excellent agreement with the
expectations of a single-particle model of Dirac fermions in graphene, with an
effective velocity of c* = 1.03 x 10^6 m/s.Comment: 4 pages 4 figures Slight revisions following referees' comments. One
figure modifie
Behavioristische Analyse des Verbraucherverhaltens in der landwirtschaftlichen Direktvermarktung
Scandals in the food industry have caused uncertainty about quality and innocuousness of food for many consumers. Direct marketing of products by farmers may be an important way to strengthen consumers´ confidence. In this article, the buyer is focus of the analysis. In contrast to other studies, the purchasing changes are examined. The objective is the development of an econometric model and the development of strategies for direct marketing.consumer behavior, direct marketing, econometric model, Consumer/Household Economics, Demand and Price Analysis, Institutional and Behavioral Economics,
Формирование подхода и методики, влияющих на процесс генерации стратегии предприятия
Цель исследования состоит в формировании нового подхода и методики, влияющих на процесс генерации стратегии предприятия
Tuning the electron-phonon coupling in multilayer graphene with magnetic fields
Magneto Raman scattering study of the E optical phonons in multi-layer
epitaxial graphene grown on a carbon face of SiC are presented. At 4.2K in
magnetic field up to 33 T, we observe a series of well pronounced avoided
crossings each time the optically active inter Landau level transition is tuned
in resonance with the E phonon excitation (at 196 meV). The width of the
phonon Raman scattering response also shows pronounced variations and is
enhanced in conditions of resonance. The experimental results are well
reproduced by a model that gives directly the strength of the electron-phonon
interaction.Comment: 4 pages, 3 figure
Resonant Excitation of Graphene K-Phonon and Intra-Landau-Level Excitons in Magneto-Optical Spectroscopy
Precise infrared magnetotransmission experiments have been performed in
magnetic fields up to 32 T on a series of multilayer epitaxial graphene
samples. We observe changes in the spectral features and broadening of the main
cyclotron transition when the incoming photon energy is in resonance with the
lowest Landau level separation and the energy of a K point optical phonon. We
have developed a theory that explains and quantitatively reproduces the
frequency and magnetic field dependence of the phenomenon as the absorption of
a photon together with the simultaneous creation of an intervalley,
intra-Landau-level exciton, and a K phonon.Comment: Main manuscript (5 pages); Supplementary Material (18 pages
Plasmon assisted transport through disordered array of quantum wires
Phononless plasmon assisted thermally activated transport through a long
disordered array of finite length quantum wires is investigated analytically.
Generically strong electron plasmon interaction in quantum wires results in a
qualitative change of the temperature dependence of thermally activated
resistance in comparison to phonon assisted transport. At high temperatures,
the thermally activated resistance is determined by the Luttinger liquid
interaction parameter of the wires.Comment: 7 pages, 1 figure, final version as publishe
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