Abstract:
Compounds of the formula ##STR1## wherein Ar is ##STR2## R.sub.1 is hydrogen, fluorine, bromine, methyl or methoxy; X is .dbd.CO, .dbd.CH--CN, .dbd.CH--OH, --O--, --S--, --NH--, ##STR3## and R is hydrogen, 4-fluoro, 4-chloro, 4-trifluoromethyl, 3-trifluoromethyl, 3-trifluoromethyl-4-chloro, 4-methyl or 4-methoxy;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as neuroleptics.
Abstract:
In a method and apparatus for determining information concerning the presence of ingredients with oxygen demand in a liquid sample, especially for determining the chemical oxygen demand of a liquid sample, especially a water, or wastewater, sample, by means of electrochemical oxidation of ingredients of the liquid sample, oxidation of ingredients of the liquid sample occurs on a boron doped, diamond electrode.
Abstract:
The invention relates to a method for the endoscopic application of self-closing medical clips (3), in particular, for arresting internal bleeding, whereby the distal end of a catheter tube (1) is introduced into the body of a living being to be treated; several clips (3), arranged successively in the catheter tube (1), are pushed forward in the direction of the distal end thereof by means of a user device which is located at the proximal end of the catheter tube (1); the foremost clip (3) to be applied is pushed out of the distal end and opened by an actuation device. Said actuation device comprises an actuation element (21) which can be actuated by the user device, moved longitudinally into the catheter tube (1) and acts on the first front clip (3), as well as a control part (25) which converts the actuation force of said actuation element into an opening movement of the legs (5) of the clip (3). After the opening of said clip (3), the actuation element (21) is separated from the clip (3), for releasing said clip in order to close the legs (5) thereof for application, and functionally linked with the following clip (3) in the catheter tube (1). The invention also relates to a device for carrying out said method.
Abstract:
A system and a method for positioning an autonomous mobile unit for docking, wherein a slot-shaped light beam which stands perpendicular to the drive surface of the unit is provided, which beam is emitted by a docking device, and position-sensitive detectors for this light beam are present on the unit, these being arranged parallel to the drive surface of the unit. With the aid of the light beam and of the detectors, the precise rotation (beta) of the unit relative to the docking device can be determined, whereby the unit learns its approximate configuration in space by means of ultrasound or odometry measurements. With this guidance, the unit can dock very precisely at a docking device in order to be able to take on goods or to drive into a garage, for example. Position-sensitive detectors, or photodiodes are provided as receptors for the light beam. The present invention preferably can be used in household robots or in industrial cleaning robots.
Abstract:
A method of reducing feedback action on a timely flow of current, which is drawn by a load from a network via rectifier, by active filtering of upper harmonics, which are superimposed on a network first harmonic, with a power factor corrector circuit with a pulse-width modulation of a switch signal which influences the current drawn from the network and flowing through a boost-converter, with the method including dividing a current path between the rectifier (2) and the load (10) in a plurality of parallel channels (It, Jt), and providing in each channel (It, Jt) a similarly active filter, with switch signals of both active filters having a substantially same pulse-width modulation and being phase-sifted relative to each other so that a reduced ripple of the total current, which results form cumulative superimposition of currents in separate channels, is produced at a network input (9); and an active filter for effecting the method.
Abstract:
The invention relates to a device for heating hairdressing scissors, forming a unit (3) comprising openings (2, 2') which can be used as holders (7, 7') into which pairs of scissors (5, 5') can be inserted, and heating devices (6, 6'), each of the heating devices (6, 6') encircling the space into which the pair of scissors is to be inserted.
Abstract:
With the improved path finding method a self-propelled mobile unit determines a path around obstacles. A heuristic avoidance strategy is used, whereby the mobile unit, when encountering an obstacle, first evades by taking a first direction and implements an avoidance procedure up to a limit value if it cannot move around the obstacle. Subsequently, the unit returns to the point of departure of the avoidance maneuver and attempts to evade in the other direction. If it is likewise not possible to move around the obstacle in this direction before the limit value is reached, the barrier for the deviation in the avoidance maneuver is incremented. The unit then again attempts to move around the obstacle, first in the original avoidance direction. The limit value is increased again after respectively two more abortive attempts. The procedure is implemented until a path around the obstacle has been found and the destination can be reached. This avoids situations wherein a self-propelled mobile unit remains captured in an endless loop due to an avoidance maneuver in front of an extensive obstacle, whereby it attempts to move around the obstacle toward the right and toward the left but is prevented by the evasion limit from covering enough distance to move around the obstacle.
Abstract:
A method of rolling up short strands of hair in the process of giving a permanent wave to a person, a holding strip and a curling device including a curling rod used in the method are related. The holding strip is placed about a strand of hair such that the holding strip forms an extension of the strand of hair. The holding strip with the strand of hair fixed to it is rolled up by the curling device. For this purpose, the curling rod engages the holding strip at an end away from the persons's head and it is rotated and moved toward the head thereby rolling up the holding strip and strand of hair. The holding strip therefore serves as a roller for the strand of hair.
Abstract:
Different bonus values and penalty values are allotted for each partial task of the unit such as, for example, drive from A to B, hold your positional uncertainty below a specific threshold, or draw up a map of the surroundings and add landmarks to it. Performance weightings for the individual tasks are yielded, in conjunction with a need to carry the latter out, after analysis of the bonus values and penalty values, and are evaluated in a control unit. Furthermore, in the context of the method a local planning horizon is specified in which the surroundings of the unit are subdivided into grid cells. Preferred directions, which lead the unit by the shortest path to already known or unconfirmed landmarks are stored for these grid cells, with the aim of reducing the positional uncertainty, or of being able to confirm a landmark. All the different routes which are possible within the framework of this grid are then investigated as to what contribution they make to enable the unit to reach the goal. In this process, the different costs and benefits per partial task are added up along each path. That route is selected which has the greatest benefit or the lowest loss. Finally, a destination which is situated outside the local planning horizon is reached by carrying out the method cyclically.
Abstract:
The new compounds of formula A--O--CO--Z (I) (wherein A and Z are defined as explained in the specification) can be prepared by conventional methods; they are suitable as active substances for pharmaceutical compositions.