Wyniki wyszukiwania - Biblioteka Nauki

1

Maintaining competetive advantage – organization renewal perspective

100%

Kawecki K.

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tom z. 118

279--290

EN

Organization need for constantly increasing its level of effectiveness as well as competitive advantage is a widely known phenomenon. Statement bases on the fact that organization effectiveness is correlated with organization survival and maintaining competitive advantage. While changes in organization environment become more dynamic and uncertain managing presented process poses even greater challenge for any enterprise. Given paper attempts to determine the relation between organization renewal, organization change and maintaining competitive advantage in the Polish, Silesian organizations. In addition discovering the organizational renewal process usage within researched companies can add several findings to the given matter. Presented study followed the qualitative research methods for data collection and analysis. Analysis based on 12 in-depth interviews of managers working in 6 different companies operating in Silesia market. Data collection from interviews was supported with document reviews and field observations. Study findings reveled how organization renewal usage is popular in researched enterprise and how important role it plays with increasing the level of organizational effectiveness. Variety of data collection methods such as in-depth interviews and field observations provided variety of the research data as well as enriched the entire study. Presented findings show the potential of organization renewal process in achieving competitive advantage. In addition combination of renewal and innovation can be utilized as a model of constantly increasing the level of organization effectiveness.

2

Numerical simulations of hydrodynamic open-water characteristics of a ship propeller

51%

Felicjancik J. , Kowalczyk S. , Felicjancik K. , Kawecki K.

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tom nr 4

16--22

EN

The paper presents the results of numerical simulations of ship propeller operation bearing the name of Propeller Open Water (POW) Tests. The object of tests was a sample ship propeller (PPTC1), the geometrical and kinematic data of which are available, along with the results of model tests, on the official page of the research centre involved in the measurements. The research aimed at verifying the correctness of results of numerical simulations performed in the model and real scale. The results of numerical analyses performed in the model scale were confronted with those measured in the experiment. Then, making use of dimensionless coefficients which characterise propeller’s operation, the recorded model data were extrapolated to real conditions and compared with corresponding results of simulations. Both the numerical simulations and the experimental research were performed for the same propeller load states. The reported research is in line with other activities which aim at developing advanced numerical methods to.

3

Numerical simulations of hydrodynamic open-water characteristics of a ship propeller

51%

Felicjancik J. , Kowalczyk S. , Felicjancik K. , Kawecki K.

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tom 23

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nr 4

EN

The paper presents the results of numerical simulations of ship propeller operation bearing the name of Propeller Open Water (POW) Tests. The object of tests was a sample ship propeller (PPTC1), the geometrical and kinematic data of which are available, along with the results of model tests, on the official page of the research centre involved in the measurements. The research aimed at verifying the correctness of results of numerical simulations performed in the model and real scale. The results of numerical analyses performed in the model scale were confronted with those measured in the experiment. Then, making use of dimensionless coefficients which characterise propeller’s operation, the recorded model data were extrapolated to real conditions and compared with corresponding results of simulations. Both the numerical simulations and the experimental research were performed for the same propeller load states. The reported research is in line with other activities which aim at developing advanced numerical methods to support the process of ship propeller designing

4

Evolutionary Algorithms Approach for Cutting Stock Problem

38%

Romanowski A. , Nowotniak R. , Kawecki K. , Jaworski T. , Chaniecki Z. , Grudzień K.

Image Processing & Communications

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2012

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tom Vol. 17, no. 4

297--306

EN

This paper contain study of three algorithms for optimisation of use of materials for cutting process. Cutting Stock Problem (CSP) and one dimensional guillotine cat variant of the CSP is introduced. Afterwards three different way of solving the problem are presented. For each of theme one algorithm is proposed. First is creating all the possible solutions and choosing the best one. Second is trying to recreate a human thinking process by using a heuristic search. Third one is inspired by an evolution process in the nature. Design and implementation of each of them is presented. Proposed algorithms are tested and compared to each other and also to the other known solutions.