3,535 research outputs found
Information Technology, Cross-Channel Capabilities, and Managerial Actions: Evidence from the Apparel Industry
Information technology (IT) has changed the dynamics of competition in the U.S. economy. Firms are gaining competitive advantage by competing on technology-enabled processes. For the retail industry, technology is breaking down the barriers between different retail channels and is making omnichannel retailing inevitable—an integrated sales experience that melds touch-and-feel information in the physical world with online content. Omnichannel retailing is becoming a trend and critical for retailers’ success. To keep up with the pace of change, existing retailers will need to create an omnichannel strategy and develop more omnichannel innovations. Based on the theories of the resource-based view (RBV), IT business value, and competitive dynamics, this study examines the factors that affect cross-channel capabilities and managerial actions in the U.S. apparel industry. We collected a longitudinal dataset on public apparel companies from 1995 to 2007. The empirical results reveal that both the quantity and scope of investments in enterprise IT applications were positively related to cross-channel capabilities. Financial resources positively moderated the relationship between enterprise IT applications and cross-channel capabilities. We found that enterprise IT applications increased the frequency and broadened the types of managerial actions. We found that cross-channel capabilities had mixed effects on managerial actions. Whereas market-oriented capabilities such as e-commerce and multi-channel cross-selling capabilities broadened the types of managerial actions, operation-oriented capabilities, such as cross-channel fulfillment, narrow the range of a firm’s managerial actions. Our findings provide important implications for managers in apparel and other retail sectors
Functional renormalization flow and dynamical chiral symmetry breaking of QCD
The dependence of function renormalization group equation on regulators is
investigated. A parameter is introduced to control the suppression of
regulators. Functional renormalization group equations will become
regulator-independent if this newly introduced parameter is sent to infinity in
the end of calculation. One-loop renormalization flow equations of QCD are
derived. The novelty is that both the coupling running equation and the mass
running equation are mass-dependent. Different flow patterns are explored. A
mechanism for non-occurrence of dynamical chiral symmetry breaking is arrived
at. The existence of a conformal window is also discussed in the language of
renormalization flow.Comment: 12 pages, 8 figures, revtex4; typos fixe
Investigation of a New Flux-Modulated Permanent Magnet Brushless Motor for EVs
This paper presents a flux-modulated direct drive (FMDD) motor. The key is to integrate the magnetic gear with the PM motor while removing the gear inner-rotor. Hence, the proposed FMDD motor can achieve the low-speed high-torque output and high-speed compact design requirements as well as high-torque density with a simple structure. The output power equation is analytically derived. By using finite element analysis (FEA), the static characteristics of the proposed motor are obtained. Based on these characteristics, the system mathematical model can be established. Hence, the evaluation of system performances is conducted by computer simulation using the Matlab/Simulink. A prototype is designed and built for experimentation. Experimental results are given to verify the theoretical analysis and simulation
A Coaxial Cable Fabry-Perot Interferometer for Sensing Applications
This paper reports a novel coaxial cable Fabry-Perot interferometer for sensing applications. The sensor is fabricated by drilling two holes half-way into a coaxial cable. The device physics was described. The temperature and strain responses of the sensor were tested. The measurement error was calculated and analyzed
Robustness of quantum correlations against decoherence
We study dynamics of nonclassical correlations by exactly solving a model
consisting of two atomic qubits with spontaneous emission. We find that the
nonclassical correlations defined by different measures give different
qualitative characterizations of those correlations. The relative behaviors of
those correlation measures are presented explicitly for various quantum states
in the two-qubit atomic system. In particular, we find that the robustness of
quantum correlations can be greatly enhanced by performing appropriate local
unitary operations on the initial state of the system.Comment: 7 pages, 6 figure
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