Abstract: A method of characterizing a surface topography includes determining scale-dependent parameters. Each of the scale-dependent parameters represents a statistical characterization of a distribution of at least one of a first-order or higher-order derivative of surface height or h determined from one or more measurements of the surface at each of multiple distance scales. For at least one of the one or more measurements, the first-order or higher-order derivative of surface height is determined at the multiple distance scales in real space defined via a scaling factor ? which is greater than or equal to 1 and which is multiplied by the smallest possible distance scale or resolution provided by the at least one of the one or more measurements.

Abstract: A moving device for moving a human thumb, in particular for moving the thumb between a resting position and a grasping position. A thumb bending section is adapted to at least partially move the thumb between a flexed position and an extended position. The thumb bending section has a gear unit for transforming a rotation of a rotation element, which is rotatably mounted to a housing, into an essentially linear movement between a translation element and the housing. The thumb bending section further has a first flexion spring mechanically connected to the translation element and adapted to be fixed with a first proximal end of the first flexion spring relative to a human thumb at a position in a proximal distance to the metacarpophalangeal joint or at a position between the metacarpophalangeal joint and the carpometacarpal joint.

Abstract: The invention concerns novel polyamines having formula (I) obtained from the reaction between a polyol diglycidylether and piperazine: in which n is a whole number between 0 and 30, R1 has different forms, R2 has formula (g5), and R2 has formula (g6) when n=0 R6: H, C1-C6 alkyl or hydroxyalkyl radical, R7: C1-C6 alkyl or hydroxyalkyl radical, R6 and R7 may be connected together to form a heterocycle having 5, 6, 7 or 8 atoms when R6 is other than H, R8: H, C1-C4 alkyl or hydroxyalkyl radical. The invention also concerns their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate H2S from a gaseous effluent containing H2S and CO2.

Abstract: The invention concerns novel polyamines having formula (I) obtained from the reaction between a polyol diglycidylether and piperazine: in which n is a whole number between 0 and 30, R1 has different forms, R2 has formula (g5), and R2 has formula (g6) when n=0 R6: H, C1-C6 alkyl or hydroxyalkyl radical, R7: C1-C6 alkyl or hydroxyalkyl radical, R6 and R7 may be connected together to form a heterocycle having 5, 6, 7 or 8 atoms when R6 is other than H, R8: H, C1-C4 alkyl or hydroxyalkyl radical. The invention also concerns their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate H2S from a gaseous effluent containing H2S and CO2.