摘要:
Aromatic amines and iron oxide pigment are produced by reacting a ferrous salt, a reduceable aromatic nitrogen compound chosen from nitroderivatives with a single nitro-group or with two nitro-groups and azoderivatives, and a basic compound, chosen from hydroxides and carbonates of ammonium, alkali metals and alkaline earth metals, operating at 25.degree.-200.degree. C. in an aqueous medium. The color of the pigment can be varied from yellow to black by increasing the reaction temperature and the molar ratio between ferrous salt and aromatic nitrogen compound.
摘要:
There is disclosed an endoscopic instrument comprising a shaft having a distal end at which at least one optical sensor is arranged and a proximal end configured for a connection to a supply unit, further comprising a data transmission element which is provided between the at least one optical sensor and the proximal end and which is configured to differentially transmit at least two signals. The data transmission element is embodied as a star quad cable.
摘要:
A device for the sterile sheathing of a sterilization-sensitive operating part, which can be connected to a medical instrument for surgical intervention, having a handling element, which comprises a bundled sterile hose at a distal end, whereby the handling element further comprises an opening, through which the sterilization-sensitive operating part can be inserted from proximal to distal into the sterile hose such that the sterilization-sensitive operating part can thereby be sheathed with the hose. It is suggested that a medical instrument is connected fixedly at its proximal end region to a distal end of the sterile hose, and that there is a transfer station, in which the sterilization-sensitive operating part is accommodated, whereby the handling element can be connected to the transfer station such that the medical instrument and the sterilization-sensitive operating part can be connected to one another and that this assembly can be withdrawn from the transfer station, whereby the bundled sterile hose can be pulled over the sterilization-sensitive operating part.
摘要:
There is disclosed an endoscopic instrument comprising a shaft having a distal end at which at least one optical sensor is arranged and a proximal end configured for a connection to a supply unit, further comprising a data transmission element which is provided between the at least one optical sensor and the proximal end and which is configured to differentially transmit at least two signals. The data transmission element is embodied as a star quad cable.
摘要:
A medical apparatus to support an endoscopic investigation that includes a housing with a base surface, a front surface and a rear surface, and a light source that is positioned in the housing to generate light to illuminate an object that is to be investigated with an endoscope. In addition the medical apparatus includes a coupling device to couple a proximal end of an endoscope on the medical apparatus and to transmit light from the medical apparatus to the endoscope. The medical apparatus includes a screen, which is positioned on the front surface of the housing to observe an image taken by means of the endoscope, where the front surface and rear surface are each inclined toward the rear at an angle between 5 and 15 degrees with respect to the base surface.
摘要:
A method of determining properties of textured surfaces with the steps: irradiation of radiation onto the surface (10) to be investigated; detection of at least part of the radiation irradiated onto the surface (10) and reflected by the latter by means of a detector device (4) which permits a location-resolved evaluation of the radiation striking it; determination of a first characteristic value (ΔP) from the radiation detected, wherein the first characteristic value (ΔP) is characteristic of a texture of the surface (10); determination of a second characteristic value (ΔE) from the radiation detected, wherein the second characteristic value is characteristic of a further optical property of the surface (10); determination of a result value (ΔI) on the basis of the first characteristic value (ΔP) and the second characteristic value (ΔE).
摘要:
An apparatus for determining surface properties, comprises at least a first radiation device which emits radiation onto a surface to be analyzed, at least a first radiation detector device which receives at least part of the radiation emitted by the at least one radiation device and then scattered or reflected by the surface and outputs at least a first measurement signal which is characteristic of the reflected or scattered radiation, and at least a further radiation detector device which receives at least part of the radiation emitted by the at least one radiation device and then scattered or reflected by a surface and outputs at least a second measurement signal which is characteristic of the reflected or scattered radiation.
摘要:
A device for examining the optical properties of surfaces includes at least one first radiation device emitting radiation to a surface to be examined at least at a first predetermined spatial angle, at least one first detector for capturing the radiation emitted to and reflected back from the surface, wherein the detector, allowing a local resolution of detected radiation, is positioned at least at a second predetermined spatial angle relative to the surface. At least one spatial angle at which the radiation device and/or the detector are positioned, is variable and the radiation device and the detector are positioned in a space at least part of which exhibits light-reflecting properties.
摘要:
A computer network architecture for making procurement-related information that has been generated on a transaction level available to data warehousing techniques is described. The network includes a transaction processing layer with at least one accounting component with a general ledger data base for centrally storing information contained in accounted-related data sets, a data warehousing layer and an additional data sourcing layer. A duplicator receives the data sets that will be or have been stored in the general ledger data base and delivers duplicates of those data sets that fulfil a predefined criteria in a procurement context. A source data base stores the duplicated data sets on a data line level. An extractor of the data sourcing layer interfaces with the data warehousing layer and selectively moves data contained in data lines or sets of data lines from the source data base to the data warehousing layer.