767 research outputs found
Marketing dynamics and management excellence. The sources of successful internationalization of food processing company from transition economy (Case: MASPEX - Poland)
The paper presents a case story of the fall and rise of the food industry in Poland's transition economy, illustrated with the example of one of its most successful companies. The author distinguishes three stages of the economic transition of Poland: · stage one, in which the Polish food processing industry collapsed, faced with fierce foreign competition after the implementation of a strategy of liberalization and privatization; · stage two (since late 1990s) when young, dynamic and relatively well- educated Polish entrepreneurs and managers not only started to regain the local market but also begun international expansion, intensifying exports, primarily to EU markets, · stage three, during which the internationalization took the form of FDI in the former neighboring socialist/communist countries. The MASPEX Group provides an excellent example of successful revival and expansion achieved thanks to the company's: · dynamic marketing strategy executed by · a young, dynamic and highly professional management team.Poland, food processing industry, internationalization, transition economy., Agribusiness,
Network traffic behaviour near phase transition point
We explore packet traffic dynamics in a data network model near phase
transition point from free flow to congestion. The model of data network is an
abstraction of the Network Layer of the OSI (Open Systems Interconnection)
Reference Model of packet switching networks. The Network Layer is responsible
for routing packets across the network from their sources to their destinations
and for control of congestion in data networks. Using the model we investigate
spatio-temporal packets traffic dynamics near the phase transition point for
various network connection topologies, and static and adaptive routing
algorithms. We present selected simulation results and analyze them
Individual-based lattice model for spatial spread of epidemics
We present a lattice gas cellular automaton (LGCA) to study spatial and
temporal dynamics of an epidemic of SIR (susceptible-infected-removed) type.
The automaton is fully discrete, i.e. space, time and number of individuals are
discrete variables. The automaton can be applied to study spread of epidemics
in both human and animal populations. We investigate effects of spatial
inhomogeneities in initial distribution of infected and vaccinated populations
on the dynamics of epidemic of SIR type. We discuss vaccination strategies
which differ only in spatial distribution of vaccinated individuals. Also, we
derive an approximate, mean-field type description of the automaton, and
discuss differences between the mean-field dynamics and the results of LGCA
simulation.Comment: 13 pages, 5 figure
Effects of population mixing on the spread of SIR epidemics
We study dynamics of spread of epidemics of SIR type in a realistic
spatially-explicit geographical region, Southern and Central Ontario, using
census data obtained from Statistics Canada, and examine the role of population
mixing in epidemic processes. Our model incorporates the random nature of
disease transmission, the discreteness and heterogeneity of distribution of
host population. We find that introduction of a long-range interaction destroys
spatial correlations very easily if neighbourhood sizes are homogeneous. For
inhomogeneous neighbourhoods, very strong long-range coupling is required to
achieve a similar effect. Our work applies to the spread of in influenza during
a single season and our model is applicable to other geographic regions, if
suitable data is available
Crimewarps: The Future of Crime in America
A Review of Crimewarps: The Future of Crime in America by Georgette Bennet
Analysis and Design of a Hybrid Dickson Switched Capacitor Converter for Intermediate Bus Converter Applications
By 2020 it is predicted that 1/3 of all data will pass through the cloud. With society\u27s growing dependency on data, it is vital that data centers, the cloud\u27s physical house of content, operate with optimal energy performance to reduce operating costs.Unfortunately, today\u27s data centers are inefficient, both economically and environmentally. This has led to an increase in demand for energy-efficient servers. One opportunity for improved efficiency is in the power delivery architecture which delivers power from the grid to the motherboard. In this dissertation, the main focus is the intermediate bus converter (IBC), used for the intermediate conversion, typically 48-12V/5V, in server power supplies. The IBC requires compact design so that it can be placed as close to the load as possible to enable more space for computing power and high efficiency to reduce the need for external cooling. Most commonly used converter topologies today include expensive bulky magnetics hindering the converter\u27s power density. Furthermore, high output current of an IBC makes the efficiency very sensitive to any resistance, such as magnetic parasitic resistance or PCB trace resistance. In this work, analytical loss models are used to review the advantages and disadvantages of frequently used IBC topologies such as the phase-shifted full bridge and LLC. The Hybrid Dickson Switched Capacitor (HDSC) topology is also analyzed. The HDSC\u27s high step-down conversion ratio and low dependence on magnetics due to the reduced applied volt-seconds, provides a new opportunity for applications such as the intermediate bus converter. The HDSC designs the on-time of devices in order to achieve soft-charging between flying capacitors. Other advantages of the HDSC include low switch stress, small magnetics and adjustable duty cycle for voltage regulation. Challenges, such as minimizing parasitic inductance and resistance between flying capacitors, are addressed and recommendations for PCB layout are provided. In this paper, a 4:1 24-5V and 8:1 48-5V, 100W GaN-based HDSC is designed and tested. The influences of capacitor mismatch and limitations placed on soft-charging operation for the HDSC is also modeled. This analysis can be used as a tool for designers when selecting flying capacitors
Substantiating Competitive Disadvantage Claims: A Broad Reading of \u3cem\u3eTruitt\u3c/em\u3e
This Note argues that the broad reading of Truitt is correct. It advocates a broad rule which would require an employer to disclose substantiating financial information to its employees\u27 union whenever it claims that meeting a proposed wage demand would place the firm at a competitive disadvantage. Because the appropriateness of substantiating financial information is factually dependent, this Note will not focus on the type or amount of information that should be disclosed. Instead, it will focus on the legal and policy justifications for a broad disclosure rule. Part I reviews Truitt and discusses the various interpretations given to it by lower courts and the NLRB. Part II examines some economic concepts and demonstrates that full disclosure of financial information is crucial when evaluating employer bargaining claims made in response to union wage demands. Part III argues that the concept of good faith bargaining as espoused by the Supreme Court and the relevancy test support a broad disclosure obligation. Part IV discusses the advantages of a broad disclosure rule that would inure to the benefit of employers, employees, the NLRB, the judiciary, and society
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