Abstract: A computer system configured to evaluate a portfolio comprising instruments, comprising a computer memory configured to store, for each instrument, an instrument value for each portfolio scenario in an n-dimensional matrix, a first constraint and a second constraint; and a computer processor configured to transpose the n-dimensional matrix, to determine a first solution by maximizing the product of transpose of the n-dimensional matrix and the first constraint, determine whether the first solution is within an accepted range of an acceptable risk, if the expected first solution is not within an accepted range of an acceptable risk, process the second constraint with the first solution to obtain a second solution, and determine whether the second solution is within the accepted range of the acceptable risk.

Abstract: A computer system configured to evaluate a portfolio comprising instruments, comprising a computer memory configured to store, for each instrument, an instrument value for each portfolio scenario in an n-dimensional matrix, a first constraint and a second constraint; and a computer processor configured to transpose the n-dimensional matrix, to determine a first solution by maximizing the product of transpose of the n-dimensional matrix and the first constraint, determine whether the first solution is within an accepted range of an acceptable risk, if the expected first solution is not within an accepted range of an acceptable risk, process the second constraint with the first solution to obtain a second solution, and determine whether the second solution is within the accepted range of the acceptable risk.

Abstract: A computer system configured to evaluate a portfolio comprising instruments, comprising a computer memory configured to store, for each instrument, an instrument value for each portfolio scenario in an n-dimensional matrix, a first constraint and a second constraint; and a computer processor configured to transpose the n-dimensional matrix, to determine a first solution by maximizing the product of transpose of the n-dimensional matrix and the first constraint, determine whether the first solution is within an accepted range of an acceptable risk, if the expected first solution is not within an accepted range of an acceptable risk, process the second constraint with the first solution to obtain a second solution, and determine whether the second solution is within the accepted range of the acceptable risk.

Abstract: A computer system configured to evaluate a portfolio comprising instruments, comprising a computer memory configured to store, for each instrument, an instrument value for each portfolio scenario in an n-dimensional matrix, a first constraint and a second constraint; and a computer processor configured to transpose the n-dimensional matrix, to determine a first solution by maximizing the product of transpose of the n-dimensional matrix and the first constraint, determine whether the first solution is within an accepted range of an acceptable risk, if the expected first solution is not within an accepted range of an acceptable risk, process the second constraint with the first solution to obtain a second solution, and determine whether the second solution is within the accepted range of the acceptable risk.

Abstract: A device for the drive control of a two-cylinder thick matter pump has a diverter which is arranged in a material charging container and a motor-driven hydraulic variable displacement pump, via which both the drive cylinders of the thick matter pump and the drive mechanism of the diverter are controlled. An adjusting throttle is arranged in a pressure line between the high-pressure outlet of the variable displacement pump and the drive cylinders of the thick matter pump. A control line which leads to an adjusting mechanism of the variable displacement pump is coupled back from the pressure line downstream of the adjusting throttle. A connecting line which leads to a supply connector of the diverter hydraulics and in which a fixedly adjusted throttle can be arranged is branched off from the pressure line upstream of the adjusting throttle.

Abstract: The invention concerns a coating plant for the coating of construction units with a coating medium, in particular a paint system for the lacquer finish of motor vehicle body parts, with a dosing pump, the coating medium supplied with a certain delivery (Fm) proportioned, and a pressure control valve arranged upstream before the dosing pump to adjust a coating medium pressure (p v) at the entrance of the dosing pump, as well as a control unit to adjust the pressure control valve a controlled variable of the pressure difference (?p) through the dosing pump independently of the delivery of the dosing pump and the changing viscosity of the lacquers to an essentially constant desired value (?pTARGET).

Abstract: A device and a method for controlling a two-cylinder thick matter pump to achieve a reliable operation even of single-circuit two-cylinder thick matter pumps. To this end, the pipe switch includes a position transmitter responding to the pivoting position. At least two cylinder switching sensors are arranged on the working cylinders at a distance from each other, responding to the passing pistons of the drive cylinder, and/or a pressure sensor responding to the pressure course at the high-pressure outlet of the reversible pump is provided. A computer-assisted reversing device has a control routine responding to output signals of the position transmitter and to output signals of the cylinder switching sensors and/or the pressure sensors, enabling the programmed control of a control body for adjusting the flow quantity and direction of the reversible pump, and a reversing element arranged in the hydraulic branch of the pipe switch.

Abstract: A device and a method for controlling a two-cylinder thick matter pump comprising pistons that are actuated in a push-pull manner by means of a hydraulic reversible pump (6) and hydraulic drive cylinders controlled by said pump. To ensure a reliable operation of the pump the expected length of the stroke of the pistons (8, 8?) in the drive cylinders (5, 5?) is measured and recorded, the stroke time of each conveyance stroke is monitored and compared with the expected stroke duration, and the reversible pump (6) is respectively pivoted, reversing the flow, and/or the pipe switch (56) is reversed when the stroke time exceeds the expected stroke duration by a pre-determined value.

Abstract: The invention relates to a device and a method for controlling a two-cylinder thick matter pump comprising delivery pistons that are actuated in a push-pull manner by means of a hydraulic reversible pump (6) and hydraulic drive cylinders controlled by said pump. For each pressure stroke, the delivery cylinders (50, 50?) are connected to a delivery conduit (58) by means of a pipe junction (56). At the end of a pressure stroke, a reversal process of the reversible pump (6) and the pipe junction (56) is triggered. The aim of the invention is to obtain a targeted reversal of the reversal pump and the pipe junction, even when the deliverable quantity is varied, whereby the delivery cylinders are completely emptied, but also without pistons banging the ends of the cylinders.

Abstract: The invention concerns a coating plant for the coating of construction units with a coating medium, in particular a paint system for the lacquer finish of motor vehicle body parts, with a dosing pump, the coating medium supplied with a certain delivery (Fm) proportioned, and a pressure control valve arranged upstream before the dosing pump to adjust a coating medium pressure (p v) at the entrance of the dosing pump, as well as a control unit to adjust the pressure control valve a controlled variable of the pressure difference (?p) through the dosing pump independently of the delivery of the dosing pump and the changing viscosity of the lacquers to an essentially constant desired value (?pTARGET).

Abstract: A device and a method for controlling a two-cylinder thick matter pump comprising conveyance pistons that are actuated in a push-pull manner by means of a hydraulic reversible pump (6) and hydraulic drive cylinders controlled by said pump. For each pressure stroke, the conveyance cylinders (50, 50?) are connected to a conveyance conduit (58) by means of a pipe switch (56). At the end of each conveyance stroke in the conveyance cylinders (50, 50?), a reversal process of the pipe switch (56) and the reversible pump (6) is triggered. The aim of the invention is to ensure a reliable operation of the pump, even in the event of a breakdown of switching and pressure sensors (20, 22, 24).

Abstract: The invention relates to a device and a method for controlling a two-cylinder thick matter pump comprising delivery pistons that are actuated in a push-pull manner by means of a hydraulic reversible pump (6) and hydraulic drive cylinders controlled by said pump. For each pressure stroke, the delivery cylinders (50, 50?) are connected to a delivery conduit (58) by means of a pipe junction (56). At the end of a pressure stroke, a reversal process of the reversible pump (6) and the pipe junction (56) is triggered. The aim of the invention is to obtain a targeted reversal of the reversal pump and the pipe junction, even when the deliverable quantity is varied, whereby the delivery cylinders are completely emptied, but also without pistons banging the ends of the cylinders.

Abstract: A device and a method for controlling a two-cylinder thick matter pump comprising delivery pistons that are actuated by means of a hydraulic reversible pump (6) via hydraulic drive cylinders that are controlled by said pump in a push-pull manner. For each pressure stroke, the delivery cylinders (50, 50?) are connected to a delivery conduit (58) by means of a pipe switch (56). At the end of each delivery stroke, a reversal process of the pipe switch (56) and the reversible pump (6) is triggered. The aim of the invention is to achieve a reliable operation even of single-circuit two-cylinder thick matter pumps. To this end, the pipe switch comprises a position transmitter responding to the pivoting position thereof.

Abstract: A tool device has a toolholder and a profile tool detachably secured to this, both of which comprise stops cooperating with one another for the precise positioning of the cutting profile of the profile tool relative to the toolholder which can be mounted on a machine tool, the stops being constructed in the form of mating surfaces. At least one adjusting element is provided between the toolholder and the profile tool to bring the profile tool to bear on the mating surfaces on the toolholder.