摘要:
A method for handling aqueous solutions of methanesulfonic acid (MSA) having a concentration from 50 to 99% by weight of MSA and a total chlorine content of less than 50 mg/kg in apparatuses in which the aqueous MSA solution is in contact with steel surfaces. The steel comprises austenitic steels having a chromium content of from 15 to 22% by weight and a nickel content of from 9 to 15% by weight.
摘要:
A method for handling aqueous solutions of methanesulfonic acid (MSA) having a concentration from 50 to 99% by weight of MSA and a total chlorine content of less than 50 mg/kg in apparatuses in which the aqueous MSA solution is in contact with steel surfaces. The steel comprises austenitic steels having a chromium content of from 15 to 22% by weight and a nickel content of from 9 to 15% by weight.
摘要:
A method for testing a data packet transceiver as a device under test (DUT) by communicating, between one or more test instruments and the DUT, multiple data packets having at least one mutually distinct signal characteristic, such as data packet type, transmission power or transmission frequency.
摘要:
A method for regulating the traction in a line (13) of a ladder climbing assistance device, in which method any movement of the line (13) is sensed and in dependence of the sensed movement either increasing the traction in the line to a predetermined high level (L1), maintaining the traction at a predetermined high level (L1), or decreasing the traction to a predetermined low level (L0). Furthermore, a ladder climbing assistance device comprising a line (13) that is movable along the ladder (1) and a motor (8) with a power outlet arranged to provide an essentially constant traction in the line (13). The ladder climbing assistance device comprises sensing means (25) for sensing any movement of the line (13), which sensing means is connected to controlling means (26) for controlling the power outlet from the motor (8) in response to signals from the sensing means in the above-described manner.
摘要:
Methods for providing users with information in audible form are provided. One such method comprises determining content sources from which information is to be retrieved for responding to a request from a user, retrieving grammar fragments corresponding to the content sources determined, providing a menu format including information for providing the grammar fragments to the user in audible form, and aggregating the grammar fragments retrieved such that the grammar fragments can be provided to the user in audible form in conformance with the menu format. Systems and computer-readable media are also provided.
摘要:
A test equipment for testing a wireless communication device includes a wireless transceiver and a controller. The wireless transceiver transmits a first series of packets while operating in a first mode. The wireless transceiver transmits a second series of packets while operating in a second mode. The wireless transceiver receives acknowledgment packets. The controller controls the transceiver to transmit the first series of packets. The controller counts the acknowledgment packets received by the transceiver in response to transmitting each of the first series of packets. The controller controls the transceiver to transmit the second series of packets when the count exceeds a predetermined count.
摘要:
A method and apparatus for generating a reference transmission signal for use in testing a communications system. A data packet transmission signal containing a plurality of reference data is captured and digitized, following which reference data is retrieved. The retrieved data is used to modulate a carrier signal to produce a digital transmission signal, which is stored for later use, such that impairments in a signal from a traditional trusted unit are substantially removed, thereby minimizing uncertainty during later testing using such signal.
摘要:
A distributed test equipment system for testing analog communications systems. One or more analog signal receivers and one or more computers are connected via a packet-switched network such that each computer can remotely control and receive signal data from each receiver. Analog signal data measured by each receiver is available for relaying to each computer where it is processed for analysis in conformance with respective user commands.
摘要:
The invention provides an apparatus and method for heating a vessel having a vessel bottom and at least one vessel side wall. The invention includes a furnace housing which is adapted to contain the vessel and which has a housing bottom and at least one housing side wall. A heater mechanism, located at the housing bottom and at the housing side wall, heats the vessel and is adapted to contact selected portions of the vessel bottom and vessel side wall. Thermal insulation is disposed about the housing for reducing heat loss therefrom, and an extendable temperature sensor is adapted to contact the vessel and monitor the temperature thereof.