Abstract: The disclosure concerns a wind turbine, comprising: a hub with a hollow cylindrical region with a mean circumference UN; at least one rotor blade mounted rotatably on the hub, with a blade laminate which extends in the longitudinal direction of the rotor blade and at least in portions forms a hollow cylinder with a mean circumference UR; and at least one blade bearing for mounting the rotor blade on the hub, with a first bearing ring which is arranged on the hub side and connected by means of a first flange connection to a rotor hub flange formed on a rotor-blade side end portion of the hub, wherein the first flange connection has at least one hub longitudinal bolt which is arranged on a circumference UNB coaxially to the blade bearing; and a second bearing ring which is arranged on the rotor blade side and connected by means of a second flange connection to a rotor blade flange formed on a hub-side end portion of the rotor blade, wherein the second flange connection has at least one rotor blade longitudinal

Abstract: A rotor hub for a wind power installation, with at least two flange portions each for receiving a rotor blade, wherein the rotor hub has a housing with a wall which is interrupted by the flange portions, wherein the housing has a wall region between two adjacent flange portions. A rotor arrangement for a wind power installation, and a wind power installation. A surface portion with cylindrical curvature is formed in the wall region.

Abstract: The disclosure concerns a wind turbine, comprising: a hub with a hollow cylindrical region with a mean circumference UN; at least one rotor blade mounted rotatably on the hub, with a blade laminate which extends in the longitudinal direction of the rotor blade and at least in portions forms a hollow cylinder with a mean circumference UR; and at least one blade bearing for mounting the rotor blade on the hub, with a first bearing ring which is arranged on the hub side and connected by means of a first flange connection to a rotor hub flange formed on a rotor-blade side end portion of the hub, wherein the first flange connection has at least one hub longitudinal bolt which is arranged on a circumference UNB coaxially to the blade bearing; and a second bearing ring which is arranged on the rotor blade side and connected by means of a second flange connection to a rotor blade flange formed on a hub-side end portion of the rotor blade, wherein the second flange connection has at least one rotor blade longitudinal

Abstract: A coupling element prepared for fastening between a oscillatory body and a tower wall of a tower of a wind turbine in order to influence relative motion between the oscillatory body and the tower wall in order to thereby influence vibration behavior of the tower, comprising a first fastening section for fastening to the oscillatory body and a second fastening section for fastening to the tower wall in order to establish mechanical coupling between the oscillatory body and the tower wall via the coupling element, the coupling permitting relative motion between the oscillatory body and the tower wall, and the relative motion having a first motion direction, in the case of which the first and second fastening sections move toward each other, and a second motion direction, in the case of which the first and second fastening sections move away from each other, and the coupling element having a spring element for spring-elastic coupling between the first and second fastening sections, the spring-elastic coupling be

Abstract: A pigment preparation comprising C.I. Pigment Yellow 74 of formula (I) as base pigment and C.I. Pigment Yellow 62 of formula (II) as pigment dispersant.

Abstract: The invention relates to the use of pigment preparations comprising C.I. Pigment Yellow 74 as base pigment and one or more pigment dispersants of the formula (I) wherein R1, R2, R3, R4, R5, and R6 independently represent hydrogen, halogen, such as chlorine or bromine, C1-C4 alkyl, such as methyl, ethyl or tert-butyl, C1-C4 alkoxy, such as methoxy or ethoxy, nitro, trifluoromethyl, cyano, phenyl, a group SO3?E+- or COO?E+, provided that there is at least one and no more than two ionic groups of type SO3?E+- or COO?E+ are supplied, one group being located in the coupling radical and the other being located in the base radical of the compound of the formula (I) in case two ionic groups are supplied, E+ represents H+, the equivalent Mm+/m of a metal cation Mm+, m representing one of the numbers 1, 2, or 3 a phosphonium ion; or an unsubstituted or substituted ammonium ion, for pigmenting electrophotographic toners and developers, inks, aqueous binder systems, and color filters.

Abstract: The invention relates to the use of pigment preparations comprising C.I. Pigment Yellow 74 as base pigment and one or more pigment dispersants of the formula (I) wherein R1, R2, R3, R4, R5, and R6 independently represent hydrogen, halogen, such as chlorine or bromine, C1-C4 alkyl, such as methyl, ethyl or tert-butyl, C1-C4 alkoxy, such as methoxy or ethoxy, nitro, trifluoromethyl, cyano, phenyl, a group SO3?E+- or COO?E+, provided that there is at least one and no more than two ionic groups of type SO3?E+- or COO?E+ are supplied, one group being located in the coupling radical and the other being located in the base radical of the compound of the formula (I) in case two ionic groups are supplied, E+ represents H+, the equivalent Mm+/m of a metal cation Mm+, m representing one of the numbers 1, 2, or 3 a phosphonium ion; or an unsubstituted or substituted ammonium ion, for pigmenting electrophotographic toners and developers, inks, aqueous binder systems, and color filters.

Abstract: The invention relates to a pigment preparation containing CI pigment yellow 74 according to formula (I) as a basic pigment and CI pigment yellow 62 according to formula (II) as a pigment dispersing agent.