Abstract: A vibration exciter comprises a main body having a relatively large mass; a relatively light-weight dynamic part, to be flexibly supported so as to be movable relative the main body, and driving means for driving the main body and the dynamic part to move relative to each other, or at least generate a force acting between the main body and the dynamic part, under the influence of a control signal. It comprises coupling means for providing a releasable coupling between the main body and the dynamic part, the coupling means comprising at least one coupling element releasably engaging one of the main body and the dynamic part in a coupled condition, the coupling element being arranged on the other one of the main body and the dynamic part so as for the dynamic part to be flexibly supported on the main body in the coupled condition via the coupling element.

Abstract: A vibration exciter comprises a main body having a relatively large mass; a relatively light-weight dynamic part, to be flexibly supported so as to be movable relative the main body, and driving means for driving the main body and the dynamic part to move relative to each other, or at least generate a force acting between the main body and the dynamic part, under the influence of a control signal. It comprises coupling means for providing a releasable coupling between the main body and the dynamic part, the coupling means comprising at least one coupling element releasably engaging one of the main body and the dynamic part in a coupled condition, the coupling element being arranged on the other one of the main body and the dynamic part so as for the dynamic part to be flexibly supported on the main body in the coupled condition via the coupling element.

Abstract: Described is a device for creating a sound source comprising integrated measuring means (50) for measuring a property representative of the strength of the sound source, the device comprising a sound generator (40a, 40b) for generating sound within an annular space defined around a central axis, the device comprising a pair of guiding surfaces (113, 123) for guiding sound away from the annular space in opposite directions along the central axis. With sound being guided as described, sound in addition being allowed to propagate outside the device in a radial direction with respect to the central axis, a high degree of omnidirectionality of the created sound source is attained.

Abstract: Described is a device for creating a sound source comprising integrated measuring means (50) for measuring a property representative of the strength of the sound source, the device comprising a sound generator (40a, 40b) for generating sound within an annular space defined around a central axis, the device comprising a pair of guiding surfaces (113, 123) for guiding sound away from the annular space in opposite directions along the central axis. With sound being guided as described, sound in addition being allowed to propagate outside the device in a radial direction with respect to the central axis, a high degree of omnidirectionality of the created sound source is attained.

Abstract: A vibration excitator including a main body, a stinger which is adapted to move relative to the main body, in a particular working direction, an actuator coupled to the main body and the stinger, wherein the stinger has a first end that is coupled to the main body, and an opposite second end that is intended for attachment to an object to be examined, wherein the stinger has an elastic center point, wherein the main body has a center of gravity, and wherein L1=L3 applies, wherein L1 is the distance between the elastic center point and the second stinger end, measured along the said working direction, and wherein L3 is the distance between the center of gravity and the second stinger end, measured along the said working direction.

Abstract: The present invention relates generally to genetic sequences and their complementary forms capable of facilitating the modification of a phenotype of a plant. More particularly, the present invention relates to polynucleotide sequences defining B-type genes, to the proteins encoded thereby, to methods for isolating such polynucleotides and to nucleic acid constructs for the expression thereof. The present invention further provides cells, particularly transformed bacterial or plant cells and to differentiated tissue including whole plants and their progeny comprising cells which contain these nucleic acid constructs or parts of the constructs. Plants and parts of plants, such as flowering and reproductive parts including seeds, also form part of the present invention.

Abstract: The present invention relates generally to genetic sequences and their complementary forms capable of facilitating the modification of a phenotype of a plant. More particularly, the present invention relates to polynucleotide sequences defining B-type genes, to the proteins encoded thereby, to methods for isolating such polynucleotides and to nucleic acid constructs for the expression thereof. The present invention further provides cells, particularly transformed bacterial or plant cells and to differentiated tissue including whole plants and their progeny comprising cells which contain these nucleic acid constructs or parts of the constructs. Plants and parts of plants, such as flowering and reproductive parts including seeds, also form part of the present invention.

Abstract: A vibration excitator including a main body, a stinger which is adapted to move relative to the main body, in a particular working direction, an actuator coupled to the main body and the stinger, wherein the stinger has a first end that is coupled to the main body, and an opposite second end that is intended for attachment to an object to be examined, wherein the stinger has an elastic centre point, wherein the main body has a centre of gravity, and wherein L1=L3 applies, wherein L1 is the distance between the elastic centre point and the second stinger end, measured along the said working direction, and wherein L3 is the distance between the centre of gravity and the second stinger end, measured along the said working direction.

Abstract: A vibration excitator is described, comprising: a main body (2); a stinger (3) which is adapted to move relative to the main body (2), in a particular working direction; an actuator (5) coupled to the main body (2) and the stinger (3); wherein the stinger (3) has a first end (3a) that is coupled to the main body (2), and an opposite second end (3b) that is intended for attachment to an object (V) to be examined; wherein the stinger (3) has an elastic centre point (Me); wherein the main body (2) has a centre of gravity (G); and wherein L1=L3 applies, wherein L1 is the distance between the elastic centre point (Me) and the second stinger end (3b), measured along the said working direction; and wherein L3 is the distance between the centre of gravity (G) and the second stinger end (3b), measured along the said working direction.

Abstract: A vibration excitator is described, comprising: a main body (2); a stinger (3) which is adapted to move relative to the main body (2), in a particular working direction; an actuator (5) coupled to the main body (2) and the stinger (3); wherein the stinger (3) has a first end (3a) that is coupled to the main body (2), and an opposite second end (3b) that is intended for attachment to an object (V) to be examined; wherein the stinger (3) has an elastic centre point (Me); wherein the main body (2) has a centre of gravity (G); and wherein L1=L3 applies, wherein L1 is the distance between the elastic centre point (Me) and the second stinger end (3b), measured along the said working direction; and wherein L3 is the distance between the centre of gravity (G) and the second stinger end (3b), measured along the said working direction.

Abstract: Apparatus for continuous casting has pairs of rolls defining a path for the solidifying slab of steel. Between the rolls on each side are rows of spray nozzles. To check the operation of the sprays and thus achieve uniform cooling, checking apparatus carrying detectors for the sprayed water is passed through the path. To achieve a useful measure of the spraying efficiency the detectors must be highly sensitive and robust. Each detector has a metal diaphragm which is set in vibration by the sprayed water and a piezo-electric element fixed to the diaphragm so as to emit a signal whose amplitude is dependent on the amplitude of the vibration of the diaphragm.