A surgical instrument navigation system is provided that visually simulates a virtual volumetric scene of a body cavity of a patient from a point of view of a surgical instrument residing in the cavity of the patient, wherein the surgical instrument, as provided, may be a steerable surgical catheter with a biopsy device and/or a surgical catheter with a side-exiting medical instrument, among others. Additionally, systems, methods and devices are provided for forming a respiratory-gated point cloud of a patient's respiratory system and for placing a localization element in an organ of a patient.

Systems, methods and devices for forming respiratory-gated point cloud for four dimensional soft tissue navigation

The invention relates to crushing and reducing device, in particular to cone crushers, and can be used in the building and ore-dressing industries The inventive method is carried out by means of a crusher which is provided with proximity sensors, the operation of which is controlled by means of a computer, and with a disc R which is rigidly secured to the unbalanced-mass vibration generator of the crusher in such a way that the plane thereof is always perpendicular to the axis of rotation of the unbalanced-mass vibration generator Said method consists in measuring a distance to the disc R, in calculating the three-dimensional position of the disc plane, in calculating the amplitude of the circular vibrations of the internal cone according to said position, in calculating the size of a crushing gap according to the thus calculated amplitude, in comparing said size with the specified parameter of the gap by means of a computer and, if, according to the comparison results, the adjustment of parameters is required, in transferring a control instruction for modifying the position of an adjustment ring from the computer to hydraulic cylinders The adjustment ring position is controlled by means of a proximity sensor which is mounted on the flange of a body top part The inventive method makes it possible to measure and modify the main process parameters directly affecting the quality and performance of the machine operation during the continuous operating mode thereof, to prevent malfunctions and emergency situations with a high degree of probability and to carry out the fullest monitoring of the crusher state at any time, thereby making it possible to efficiently use and to extend the service life of the working surfaces and to apply a totally computerised control by excluding a human factor

Method for controlling process parameters of a cone crusher

A method is disclosed including a client accessing a cache for a value of an object based on an object identification (ID), initiating a request to a cache loader if the cache does not include a value for the object, the cache loader performing a lookup in an object table for the object ID corresponding to the object, the cache loader retrieving a vector of execution context IDs, from an execution context table that correspond to the object IDs looked up in the object table and the cache loader performing an execution context lookup in an execution context table for every retrieved execution context ID in the vector to retrieve object IDs from an object vector.

Methods and systems for caching data using behavioral event correlations

There is described a crushing plant and a method for controlling the same. The crushing plant involves a gyratory crusher (1) with means for controlling a minimum gap in a crushing chamber, and is driven by a diesel engine (18). A load value is retrieved from the diesel engine. If the retrieved value exceeds a predetermined threshold value, the minimum gap is increased. Thereby it can be avoided that the diesel engine stalls, such that continuous operation of the crushing plant may be ensured.

Crushing plant and method for controlling the same

A crusher comprising at least a first crushing blade (1) and a second crushing blade (2) which are arranged to be rotary, one of the crushing blades being also arranged to move back and forth along a substantially harmonic linear path, and the rotating axes (X) of the first crushing blade (1) and the second crushing blade (2) being parallel with the linear direction of movement of the second crushing blade (2). The second crushing blade (2) is adjusted to move substantially harmonically back and forth along a linear path.

Crusher, method for crushing material and method for controlling a crusher

A crusher has a first crushing means (4) and a second crushing means (5) together with the first crushing means (4) defining a crushing grap (6). A measuring device (12. 13) is arranged to measure the instantaneous load on the crusher during at least one period to obtain a number of measured values. A calculation device (11) is arranged to calculate a representative value that is representative of the highest, measured instantaneous load during each such period of time. A control device (11) is arranged to compare the representative value with a desired value and to control the load on the crusher depending on said comparison. In this type of control, a more efficient crushing and reduced risk of the crusher breaking down are obtained.

Method and device for controlling a crusher, and a pointer instrument for indication of load on a crusher

In a method for starting crushing in a gyratory crusher, the following steps are carried out: a) that a driving device (10) is started and brings a crushing head (3) to execute a gyratory pendulum movement and that a first width of a gap (6) is set, b) that a supply of material in the gap (6) is commenced, c) that the resulting load on the crusher is measured, d) that the width of the gap (6) is adjusted so that the load approaches a desired value, e) that a measure which is representative of the width of the gap (6) after adjustment is read, and f) that the read measure which is representative of the width of the gap (6) after adjustment is utilized for calculation of a gap width for use as first width of the gap (6) in carrying out step a) upon a next-coming starting-up of a crushing course. By means of the method, the mechanical load on the crusher is decreased and the efficiency is increased.

Method and control system for starting crushing in a gyratory crusher

The present invention relates to a method to control a crusher, a crusher and a control system for the control of a crusher. The crusher (1) comprises a replaceable first crushing member (4) having a first crusher surface and a replaceable second crushing member (5) having a second crusher surface. The cooperation of the crusher surfaces is defined by at least one crusher setting parameter. From measurements of a quality parameter, which relates to the nature of the crushed material, on at least two different occasions during the service life of a set of a replaceable first and second crushing members (4, 5) and on each occasion for at least two different settings of the crusher setting parameter, a control function can be determined that describes a value, of said at least one crusher setting parameter, which on a given occasion gives a crushed material the quality parameter of which is substantially optimal. The control function is utilized for the adjustment of the crusher setting parameter for a subsequent set of replaceable first and second crushing members (4, 5) in such a way that on given occasion for the subsequent set of replaceable crushing members (4, 5), a crushed material is also given the quality parameter of which being substantially optimal.

Method and device for the control of a crusher

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Method and device for controlling a crusher, and a pointer instrument for indication of load on a crusher

Method and control system for starting crushing in a gyratory crusher

Method and device for the control of a crusher