Abstract: Some embodiments are directed to a method for controlling a check node of a NB-LDPC decoder. The check node receives dc input lists Ui and delivers and delivers dc output lists Vi, with i?[1 . . . dc]. Each input list and output list includes nm elements and each element of the input or output lists includes a reliability value associated to a symbol of a Galois Field GF(q) with q>nm. The input elements and output elements are sorted according to the reliability values in the lists. The method is a syndrome-based method. The syndromes are sums of dc elements of input lists Ui. The method includes a step of syndrome calculation, a step of decorrelation and a step for generating the output list.

Abstract: A multilayer system on a substrate, the multilayer system being applied to the substrate by plasma deposition, characterized in that the multilayer system is configured such that it has substantial diffusion resistance to ions in an aqueous solution, wherein the current produced by the diffusion of the ions with the connection of an electric field gradient of more than 104V/m, preferably more than 105V/m, most preferred more than 107V/m is IIon<6.5×10?8 A/cm2, preferably IIon<6.5×10?10 A/cm2, particularly IIon<1×10?12 A/cm2.

Abstract: A device for the reduction of nitrogen oxides in the exhaust gas of internal combustion engines has a thermolysis reactor (10). In the thermolysis reactor (10), urea is converted into ammonia and isocyanic acid by means of the supply of heat. In a preferred embodiment of the invention, the thermolysis reactor (10) is arranged within the exhaust gas duct (26) and is thermally coupled to an oxidation catalytic converter (30) which is connected upstream of the thermolysis reactor (10) in the flow direction. As a result of the exothermic reactions taking place in the oxidation catalytic converter (30), it is possible for heating of the thermolysis reactor (10) to take place. In order to further increase the temperature, it is possible for fuel to be injected into the oxidation reactor (30) by means of a fuel supply device. The fuel is burned catalytically in the oxidation catalytic converter (30).