Abstract:
Provided are novel crystalline and amorphous forms of ibandronic acid, methods for their preparation, and pharmaceutical compositions containing them. Also provided are methods for purifying and assaying ibandronic acid in any crystalline form (or amorphous).
Abstract:
A coupling for connecting two components, such as a drive element to a drive element, transmission, or the like, having a clamping hub and a centering hub which are connected to one another in an axially displaceable manner by at least one bellows, and as additional torsional locking, the clamping hub and centering hub are connected with a positive fit and are radially locked torsionally with respect to one another.
Abstract:
A drive control for controlling a gear system which is connected to a motor. The drive control comprises one or several sensors for detecting operationally specific parameters of the gear system, and a decentralized sensor evaluation unit. The sensor or each sensor is connected to the decentralized sensor evaluation unit for separate evaluation of information provided by the sensor or sensors.
Abstract:
A drive, particularly a planetary drive, comprising a drive shaft and at least one driven shaft which are connected by at least one element. The drive shaft and the driven shaft are mounted opposite the housing parts by bearings. The drive is characterized in that the annular space for receiving at least two sealing elements which are disposed consecutively is formed between the housing parts and the drive shaft and/or driven shaft.
Abstract:
A method for recognition, determination and localization of at least one arbitrary object or space and the picking up of said object, by at least on robot, in particular, a service robot, which operates independently on the base surface. The method is achieved, whereby the robot is oriented within at least one room by room co-ordinates and/or co-ordinates of arbitrary objects in the room, transmitted to the robot by at least one sensor element, in particular, a transponder or transmitter.
Abstract:
The invention relates to sorting items of mail in a plurality of sorting passes. In order not to have to read the address in each sorting pass and also not to have to print any machine-readable identification code on each item of mail, features characteristic of the items of mail are additionally determined during the first sorting pass and are stored together with distribution codes determined in the reading process. During the subsequent sorting passes only the characteristic features of the items of mail are measured and compared with the stored features. In the event of agreement, the item of mail is assigned the associated distribution code. A particular feed regime with defined orders ensures that in each case only n items of mail have to be compared, where n=maximum multiple delivery rate to be expected.
Abstract:
A lift/swivel drive comprising a working element which can traverse rotationally and linearly in relation to a housing element. In order to displace the working element in a controllable linear and rotative manner in relation to the housing element, at least one linear motor and at least one rotative motor are assigned to the working element and/or the housing element.
Abstract:
The invention relates to calibration standards which are used chiefly for the calibration of profilometers and in atomic force- and scanning probe microscopes. The calibration standard has one step of defined height H or a multi-step system formed of several steps of the same step-height H and consisting of exactly one material. The manufacturing procedure for the calibration standard requires only a single masking layer for each of the different versions in the form of a one-step standard or a multi-step system.
Abstract:
A calibration standard comprises a supporting structure (1) of single crystal material with at least one pair of different kinds of structures consisting of a raised line (2) and a trench (3). These structures have the identical width in the range of about 500 nm. The single crystal material preferably is silicon with (110)-orientation. A method of producing the calibration standard comprises the steps: providing two polished wafers of the same single crystal material and with the same crystal orientation, forming an oxide layer on the polished surface of the first wafer, bonding the second wafer to the first oxidized wafer with the polished surfaces of the wafers facing each other, cutting the bonded structure transverse to the polished surfaces, selectively etching both the wafers to a defined depth to expose a portion of the oxide layer, masking the portions of the oxide layer now representing the raised line (2) and selectively etching the oxide layer in the unmasked areas to a defined depth to form the trench (3). The calibration standard overcomes the problem of measuring the diameter of an ultrafine tip for AFM/STM profilometry in the sub-nanometer range.
Abstract:
Disclosed is a reproducible process for making an SiO.sub.2 layer by thermal oxidation which assures an extremely uniform thickness of the SiO.sub.2 layer of approximately 1%. The process of the invention comprises the steps growing an initial layer of SiO.sub.2 to a defined minimal thickness by dry oxidation and increasing the thickness of the initial layer by simultaneous wet and dry oxidation until the desired final thickness is reached.