نتایج جستجو برای: frequency equation

تعداد نتایج: 703110  

2012
Russell Golman George Loewenstein

Research in psychology typically distinguishes between expectations and aspirations, yet economic models that incorporate reference dependence generally assume a single reference point. We propose a dual reference point model in which loss aversion is determined by an expectations-based reference point and value function curvature is anchored relative to an aspiration level or goal. The model p...

2002
Anna Berno Nicola Laurenti

The Hiperlan/2 standard [1]-[3] for wireless LAN transmission in the 5 GHz frequency band makes use of OFDM modulation with a TDMA access scheme, in order to efficiently exploit time dispersive channels with frequency selective fading. It is well known that the performance of OFDM schemes is very sensitive to synchronization: symbol timing and carrier frequency errors must be carefully estimate...

2009
HANS CHRISTIANSON

We study dispersive properties of one-dimensional surface waterwaves under surface tension, based on the formulation of the problem as a nonlinear dispersive equation coupled with a transport-type equation. We establish a dispersion estimate on time scales depending on the size of the frequencies. We infer that, if s is large enough, then a solution u of the dispersive equation satisfies local-...

Journal: :Int J. Information Management 2009
Stefanie Leimeister Jan Marco Leimeister Uta Franziska Knebel Helmut Krcmar

Purpose: Drawing from literature on innovation, strategy and culture the objective of this study is to explore the role of perceived potentials and perceived strategic importance on CIOs’ perspective on RFID technology in two different cultural settings. Methodology:Based on survey responses from463German and 157 Italian IT decisionmakerswe analyzed the data with PLS structural equation modelin...

2011
PAMELA J. zELBST KENNETH W. GREEN VICTOR E. SOWER ROGER D. ABSHIRE

This study examines the impact of RFID technology utilization on organizational agility in manufacturing firms. Data from a sample of 328 manufacturers were collected and the model was assessed following a structural equation methodology. Findings indicate that adoption of RFID technology utilization directly and positively impacts organizational agility which in turn directly and positively im...

2002
Rafael F. S. Caldeirinha Miqdad O. Al-Nuaimi

An important part of the modelling process applied to vegetation effects is aimed at analysing the radio propagation modes and the identification of individual signal contributions to the scattered signal caused by various elements of the tree. The paper describes detailed studies aimed at the wideband characterisation of propagation mechanisms arising in single trees. It explores effects of ge...

2009
S. Weber J. Bonnet A. Besse A. Arbouet B. Chatel Paul Sabatier

Time shaping of ultrashort UV pulses has been performed using a specially designed acoustooptic programmable dispersive filter in KDP material. A time window shaping up to 4 ps has been obtained on the 250–410 nm range. Characterization by difference frequency mixing as well as two-photon absorption in diamond has been used.

2006
Christian Tellkamp Thomas Wiechert Frédéric Thiesse Elgar Fleisch

It is the aim of this paper to identify the most important factors that influence a retail company's expectations and motivations regarding RFID implementation at the point-of-sale based on empirical data. The data for our research was gathered by means of a questionnaire and analysed using a structural equation model. The results suggest that retailers which expect a high potential from RFID u...

A theoretical model is developed to consider the effect of demulsifier agent on demulsification of water-in-crude oil emulsion. A thermodynamic approach is considered to correlate the critical micelle concentration of a demulsifier to the collision frequency function in population balance equation (PBE). Based on the proposed correlation, the collision frequency function is modified to account ...

Journal: :SIAM J. Math. Analysis 2012
M. B. Erdogan N. Tzirakis Vadim Zharnitsky

The Korteweg-de Vries (KdV) equation with periodic boundary conditions is considered. The interaction of a periodic solitary wave (cnoidal wave) with high frequency radiation of finite energy (L-norm) is studied. It is proved that the interaction of low frequency component (cnoidal wave) and high frequency radiation is weak for finite time in the following sense: the radiation approximately sat...

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