摘要:
In a process for processing waste paper, aqueous suspensions of pulp are treated with cationic layer compounds precipitated in situ. The separated printing inks, fillers and/or unwanted substances are then removed from the fibrous suspensions in a known manner by flotation or washing out.
摘要:
A file (FI) is transmitted via a first channel (CH1). In addition, a second channel (CH2) is used to transmit play parameters (D1, D2, R1, R2) which comprise at least one set (Di, Ri) of information about a play rate (R1, R2) and a delay time (D1, D2) for the file (FI) which is to be transmitted by the first channel (CH1). On the basis of the play parameters (D1, D2, R1, R2), it is possible to determine a time for starting to process the file (FI) which is to be transmitted.
摘要:
In a vector network analyzer with a transmitting and, a receiving side, each including a downward mixing super heterodyne receiver, a high voltage power supply for providing an accelerating voltage is arranged in series with a second power supply with a controllable lower output voltage so that unavoidable voltage variations in the acceleration voltage can be controlled. The second power supply is connected to the output of a phase and frequency discriminator by way of an amplifier and a low-pass filter. The discriminator has two inputs, one receiving the downwardly mixed transmitting side signal and the other the signal provided by a reference oscillator having a constant frequency. As millimeter wave oscillator a backward wave oscillator is used whose frequency drifting by temperature changes or by aging is compensated for by a control signal for the second power supply, which control signal is derived from the phase and frequency discriminator.
摘要:
Implantable access device for removal and/or return of fluids to a patient, comprising a casing attached to an internal conduit to be connected with a lumen of the patient; a connector attached at the casing and connected to an external conduit, and arranged for attachment of an extracorporeal lumen to the device; and an actuator unit within the casing to selectively allow or block the fluid communication between the internal conduit and the external conduit; the device further comprising a fixation unit integrated in or attached at the casing arranged for fixation of the device to a bone of the patient; wherein the fixation unit extends axially along the longitudinal axis of the device. The disclosed access device can be used for high volume removal and/or return of blood or other fluids from the patient.
摘要:
The invention relates to an at least two-stage method for corrosion protection treatment of metal surfaces, wherein, in a first step (i), an organic coating comprising an aqueous phase (A) is applied to the metal surface and, in a following step (ii), the organic coating applied to the metal surface contacted with an acidic, aqueous composition (B) comprising at least one or more water-soluble compounds containing at least one atom selected from the elements Zr, Ti, Si, Hf, V and/or Ce and one or more water-soluble compounds that release copper ions. The invention further comprises a metal component that is at least partially made of steel, iron, zinc and/or aluminum and the alloys thereof and has been treated by the method according to the invention, and to the use thereof in automobile construction and in the construction industry and for producing household appliances and electronics housings.
摘要:
The present invention relates to a storage unit for gases, in particular a sorptive storage, with the storage unit comprising a sorbent for the reversible uptake of the gases to be stored and the sorbent being based on discrete sorptive particles. The sorptive particles are embedded in a solid gas-permeable three-dimensional support having a foam structure and/or are fixed thereto. The storage unit is particularly suitable for the storage of combustible or fossil gases, e.g. hydrogen, natural gas and the like, and thus as gas storage unit in power stations and motor vehicles.
摘要:
A transcutaneous access port to a user has a coupling member destined to be anchored in a bone of the user. A first valve system is removably connectable to the coupling member and a second valve system is removably connected to the first valve system. An internal conduit is connected at its proximal end to the access port and at its distal end to a vascular structure of the user. An external conduit is connected to the access port and to an extracorporeal device. A traversing cavity is formed in the bone at an implantation site of the user, passing the internal conduit. The internal conduit is routed through the traversing cavity to connect its distal end to the vascular structure of the user. The coupling member is anchored to the bone at the implantation site. The proximal end of the internal conduit is connected to the access port.
摘要:
A transcutaneous access port to a user has a coupling member destined to be anchored in a bone of the user. A first valve system is removably connectable to the coupling member and a second valve system is removably connected to the first valve system. An internal conduit is connected at its proximal end to the access port and at its distal end to a vascular structure of the user. An external conduit is connected to the access port and to an extracorporeal device. A traversing cavity is formed in the bone at an implantation site of the user, passing the internal conduit. The internal conduit is routed through the traversing cavity to connect its distal end to the vascular structure of the user. The coupling member is anchored to the bone at the implantation site. The proximal end of the internal conduit is connected to the access port.