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Polymer Composites Based on Reactive Carboxylate-Alumoxanes
No full textabstractEN: Summary: The possibility of applying basic aluminum carboxylates as the cross-linking monomers in radical polymerization processes as well as the initiators for ATRP of styrene and coordination ROP of heterocyclic monomers was examined. It was established, that aluminum carboxylates containing in their structure the acrylic and lauric acids derivatives show high activity in the copolymerization with vinyl monomers which results in the hybrid polymer networks formation. In the typical ATRP conditions, polymers grafted with styrene are obtained while basic aluminum 2-bromopropionate is used as the initiator. Hybrid composites i.e. core-shell nanospheres can be obtained in this way at low degree of polymerization. Nanoparticles of basic aluminum caroboxylates when reacted with triethylaluminum show high activity as initiators in the polymerization processes of ε-caprolactone, trimethylene carbonate as well as propylene and ethylene oxides. Cross-linked products in the form of a gel were formed as the result of ROP in such systems. However, linear polymers characterized by Mn above 104 and PDI ≥ 1.9 were obtained after aluminum residuals removal.score: 0collation: 77–8
Analysis of Experimental Data in the Context of Safety against Derailment of a Railway Vehicle, Using the Energy Method
No full textscore: 8collation: 16-2
Operational Errors in Air Traffic
No full textabstractEN: The obligatory value representing the allowable number of events in air traffic (in particular accidents), calculated upon historical data known as Target Level of Safety - TLS, is at present valid only for accidents and equals 1,55 * 10 -8 an accident per one flight hour. This value, unless the previously calculated TLS, would be reliable and this equation itself might be useful to monitor the current level of safety (CLS) by putting into it the current performance characteristics of a staff.score: 5collation: 191-19
Model of Transportation Network Development in Aspect of Transport Comodality
No full textabstractEN: This paper is the result of research conducted within the development project: "The model logistics system of Poland as a way to comodality of transport in the European Union". The article presents the issues of transport networks development for tasks resulting from the using elements of Logistics System of Poland. There was formulated optimization task of cargo flows and funds distribution in the transport network. Evaluation of adapt the transport network elements to tasks was made in dimension of programming the transport system development.score: 4collation: 341-34
Zwielokrotnienie modowe nową metodą zwiększenia pojemności informacyjnej światłowodu wielomodowego
No full textscore: 3collation: 22-2
An efficient method for calculation of the MM fiber frequency response in the presence of mode coupling
No full textabstractEN: We present a more efficient and less time consuming method for calculating the mode coupling effects in multimode fibers. Instead of solving the power transfer equation, we solve the system of coupled equations. It is shown that this method is much faster, more accurate and easier to implement. It allows defining the fiber transfer function in the matrix formalism. The convergence of the power transfer equation to our method is investigated.score: 20collation: 1195-120
On Design of Discriminant Analysis Diagram for Error based Pattern Recognition
No full textscore: 10collation: 342-35
