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The paper examines the relationship between the use of specific knowledge and success among the Hungarian grape growers and wine makers. In the recent decade Hungary has been left behind by the world trends representing an increasing share of premium and superpremium wines (which materialize higher knowledge) in export development. According to our survey, the non-appropriate usage and management of knowledge and skills that would be ‘condition sine qua non’ for wine making might be behind that. However, the use and spread of skills is a basic component in explaining the differences among companies, it is not unambiguous in formulating the business success measured by different indicators. At the same time we can conclude that the Hungarian wine enterprises — keeping the idea of generation, as well as its further development, elaboration, and adequate usage within the frame of the company — can achieve market success.

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Abstract  

Interaction between iron(III)-diphosphate and iron(III)-triphosphate and Ca-form of a clayey meadow soil was followed over a period of three days using radiotracer technique and kinetic evaluation of the results performed.59Fe served to determine the quantity of iron,45Ca to measure the calcium, and phosphorus was measured spectrophotometrically. Approximately 80% of both iron chelates disappeared from the solution during the time of the experiment as a result of two well distinguishable reactions. One of them is a rapid interfacial process of about 10 minutes and the other is a slow reaction leading to the decomposition of iron(III)-polyphosphate chelates. The two processes could be separated using the Christiansen equation.

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Abstract  

Interaction between FeEDTA and calcareous soils was followed over a period of four weeks using a radiotracer technique, and a kinetic evaluation of the results was performed.59Fe served to determine the quantity of iron,14C to assay for EDTA and45Ca to measure calcium. During the experiment, i. e. within four weeks in case of the chernozem soil 61% and in case of the clayey meadow soil 51% of the iron chelate dissapeared from the solution. The loss in soluble iron was partly due to a rapid sorption process of about an hour and partly due to the slow decomposition of FeEDTA to Fe(OH)3. The two processes could be separated using the Christiansen equation.

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In this column Periodica Mathematica Hungarica publishes current research problems whose proposers believe them to be within reach of existing methods. Manuscripts should preferably contain the background of the problem and all references known to the author. The length of the manuscript should not exceed two doublespaced typewritten pages.

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Abstract  

In this column Periodica Mathematica Hungarica publishes current research problems whose proposers believe them to be within reach of existing methods. Manuscripts should preferably contain the background of the problem and all references known to the author. The length of the manuscript should not exceed two doublespaced typewritten pages.

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In this column Periodica Mathematica Hungarica publishes current research problems whose proposers believe them to be within reach of existing methods. Manuscripts should preferably contain the background of the problem and all references known to the author. The length of the manuscript should not exceed two doublespaced typewritten pages.

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Periodica Mathematica Hungarica
Authors: A. Hajnal, L. Tóth, H. Sachs, and G. Tóth
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Periodica Mathematica Hungarica
Authors: A. Hajnal, L. Tóth, and L. Lovász
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