ON THE THEORY OF CROSS-MAGNETIZATION EFFECTS IN CYLINDRICAL ROTOR A. C. MACHINES, INCLUDING MAIN FLUX SATURATION

In recently published papers concerned with variable saturation in cylindrical rotor a.c. machines, a cross-saturation effect was described, caused by variable saturation. Using the same approximations as applied in the cited papers we will show that Faraday's law applied to cylindrical rotor a.c. machines including variable saturation excludes any transformer effect that links the mutually perpendicular axes of a general reference frame. In reality the induced component voltages in the directions of coordinate axes are well defined by transformer and rotational effects in agreement with Faraday's law, showing that the coordinate axes of the applied general coordinate system, are magnetically independent

A color in situ hybridization method with improved sensitivity for the detection of low-abundance mRNAs

We have modified a nonradioactive (color) in situ hybridization method for the detection of mRNA populations, transcribed from the calmodulin (CaM) I gene, that exist in low abundances in tissues such as the white matter of the rat spinal cord. Our results indicate that increasing the pH of the hybridization solution from neutral to slightly alkaline (pH 8.0-8.5) drastically improves the detectable signal intensity of the digoxigenin-labeled CaM I gene-specific riboprobe while providing high spatial resolution. This method could be useful for the detection of other mRNA populations present in cells in low concentrations or in tissues where probe penetration might be impaired (e.g. a high lipid content)

Synthetic and steel fibers in prestressed, precast long span beams

Four large-scale, prismatic, T-shaped beams with 19 m span were produced without stirrups, but 2 with synthetic fibres and 2 with steel fibres. Four point bending tests were made to simulate the load bearing process of built-in beams. Three point shear tests were made in the uncracked ends of the beams to prove the shear resistance of FRC. The behaviour of beams made of synthetic and steel fibre reinforced concrete was compared. Finite element calculation was made with the fibre reinforced concrete and plain concrete as well. The material model was according to Eurocode and the effect of the fibre was according to RILEM guideline. The numerical and real test load-deflection results showed close correlation

Network attributes' evaluation by stakeholder groups concerned to the Agri-food sector in Hungary

As a consortium partner, University of Debrecen, Hungary, has been conducting a European four-year project with the acronym NetGrow financed within the Framework Program 7 under the auspices of the EU focusing on network behaviour of food SMEs and the performance of networks. The overall objective is to reveal more evidences and facts on innovation, learning, and networking in the food sector of the EU. Whithin the scope of the project, special attention was paid to reveal how network attributes were evaluated by the main four stakeholder groups of the food sector such as food SMEs, public bodies, research institutions, and network management organisations. The respondents differ in ranking the attributes, while but we got a clear order of attributes, of which the top five can be explicitly selected. Taking the next three ranks into consideration, the attributes behind them have clear meanings and they seem to be complementary for the top five. The stakeholder groups were significantly differ in scoring openmindedness and external relations, the importance of network rendered services, and the goals relevance of the network to the firms