Abstract:
A method and a device for realizing an optical channel data unit (ODU) shared protection ring (SPRing) are disclosed by the present invention. The method includes: A first ODU of a first service transmitted in an optical line is taken as a protection granularity, where the first ODU is an ODUk that is directly multiplexed to the optical line; the first ODU is monitored, and a monitoring result is obtained; when the monitoring result indicates that a failure occurs, a switching is performed through cross of a second ODU of the first service, where the second ODU is an ODUm that is multiplexed to the first ODU, and m is smaller than or equal to k. Through the embodiments of the present invention, a protection switching speed may be accelerated.
Abstract:
A signal transmission processing method and apparatus and a distributed base station are provided according to the embodiments of the present invention. The distributed base station includes a Base Band Unit (BBU) and a Remote Radio Unit (RRU). A transmitting end connected to one of the BBU and the RRU receives at least one of interface signals from the one connected thereto, performs optical transport network (OTN) electrical layer multiplexing to obtain OTN signal frames and transmit optical signals including the OTN frames to a receiving end connected to the other of the BBU and the RRU. The receiving end performs frame processing for the OTN frames received from the transmitting end to obtain the interface signals, and transmit the interface signals to the other connected thereto.
Abstract:
The apparatus and process for separating hydrogen isotopes is provided using dual columns, each column having an opposite hydrogen isotopic effect such that when a hydrogen isotope mixture feedstock is cycled between the two respective columns, two different hydrogen isotopes are separated from the feedstock.
Abstract:
Embodiments of the present invention disclose a service transmission processing method, a node device and a network system are provided. One method includes: receiving service data after relay processing by a 3R relay node, where the relay processing includes terminating and regenerating an Optical Channel (OCh) of the service data, and when the OCh is terminated, transparent transmission is performed on an Optical channel Transport Unit (OTU); and performing defect detection on a path of the OTU to obtain a detection result of the path of the OTU. Another method includes: obtaining an overhead in an Optical Transport Network (OTN) frame; and judging whether the overhead includes a Client Signal Fail (CSF) inserted after a signal fails, and if the overhead includes the CSF, determining a path where a defect occurs according to the CSF.
Abstract:
A supported catalyst having an atomic level single atom structure is provided such that substantially all the catalyst is available for catalytic function. A process of forming a single atom catalyst unto a porous catalyst support is also provided.
Abstract:
Methods and apparatuses for dispatching OTN signals are disclosed. The method includes receiving an OTN signal frame; determining in sequence whether each byte in the OTN signal frame is an overhead byte; determining, if the byte is an overhead byte, whether the byte includes frame alignment data; and assigning, if the byte includes frame alignment data, the byte in sequence to a corresponding channel based on a sequence number of an OTN signal frame period, or storing, if the byte does not include frame alignment data, the byte in a buffer; or assigning, if the byte is not an overhead byte, the byte in sequence to a corresponding channel based on a location of the byte in the OTN signal frame.
Abstract:
A depth checking device includes a body member, a pressing member, a checking member and an adjustment nut. The body member defines a stepped through hole forming a stopping surface inside. The pressing member includes a first end and an opposite second end. The first end includes a first end surface defining a first opening. The second end defines a second opening. The checking member is mounted in the stepped through hole and includes an indication end adjacent to the first end and a probe end. The indication end includes a second end surface. The adjustment nut is screwed on the checking member and supported by the stopping surface in a position where the first end surface is coplanar with the second end surface and the probe end protrudes from the body member with a protruding length of the probe end same as a designed depth of a fixing hole.
Abstract:
A method of reducing the ethylbenzene content in a stream containing xylene is disclosed. The method includes the reaction of ethylbenzene, such as a disproportionation or transalkylation reaction, to produce benzene and other hydrocarbon compound and can include the separation of at least a portion of the resulting benzene and other hydrocarbon compounds to produce a xylene stream having reduced ethylbenzene content.
Abstract:
A process for the disproportionation of a toluene containing feedstock employing a nickel modified mordenite catalyst comprising particulate mordenite having nickel dispersed throughout the catalyst particles to provide surface nickel and interior nickel within the mordenite crystal structure. The catalyst is pretreated to selectively deactivate the surface nickel to provide a surface nickel content of reduced catalytic activity. The interior nickel thus has a higher catalytic activity than the surface nickel. The feedstock is supplied to a reaction zone containing the catalyst to cause disproportionation of toluene in the feedstock to produce a mixture of benzene and xylene. The non-aromatic content of the product is less than the non-aromatic content of a corresponding disproportionation product which would be produced by the disproportionation of the feedstream in the presence of a corresponding nickel mordenite catalyst which has not been pretreated.
Abstract:
The present invention provides a process for the preparation of a catalyst having a high surface area and pore volume. The process includes freeze drying an intermediary of the catalyst. The present invention further includes a catalyst prepared by a process that includes the freeze drying step. The present invention also includes a catalyst having a high acidity, as indicated by having an ammonium desorption peak at greater than about 500° C. The prevent invention further includes a method of manufacturing isomerized organic compounds using the catalyst.