摘要:
Edge nodes form point-to-point communication paths with one another. Multiple communication paths set at one port of an edge node and/or a relay node are regarded as a group. Identification information of the port and identification information of a group that outputs a frame inputted into the port are previously stored as associated with each other. If the destination address of a frame inputted into the port is unknown, an outgoing interface search unit identifies at least one group corresponding to the port. The frame is outputted from a port corresponding to the identified group.
摘要:
Disclosed is a low melting point glass which has excellent water resistance and can impart excellent flame retardancy to a resin composition. Also disclosed is a resin composition comprising the low melting point glass. Further disclosed is a resin molded article. Specifically disclosed is a low melting point glass which comprises 22-27 mol % of P2O3, 3-18 mol % of SO3, 25-40 mol % of ZnO, 0-2 mol % of Al2O3, 0-4 mol % of Li2O, 0-15 mol % of Na2O and 11-35 mol % of K2O, wherein the total amount of Li2O, Na2O and K2O is 25-35 mol %. The low melting point glass has a glass transition temperature of 200 to 300° C. exclusive. A resin composition is produced by mixing the low melting point glass with a resin. A resin molded article is produced by molding or curing the resin composition.
摘要:
A pedal device includes a pedal suspended from a supporting shaft penetrating through a pair of lengthwise walls of a pedal bracket, and shaft detachment means configured to allow one end portion of the supporting shaft to be disengaged from a corresponding one of the lengthwise walls at the time of forward collision. A pedal stroke sensor is arranged on the pedal bracket at a distance from the pedal, and the pedal stroke sensor and the pedal are connected to each other by a transmission mechanism. The transmission mechanism includes permission means for permitting the end portion of the supporting shaft to be disengaged from the corresponding lengthwise wall at the time of forward collision.
摘要:
A packet communication apparatus comprising a node management processor for controlling the whole apparatus, network interfaces for transmitting and receiving packets to and from external networks, function enhancement modules for performing predetermined processes on the packets, and a switch for transferring the packets within the apparatus. The network interface includes a CPU and a memory, the memory stores a program executed by the CPU, the CPU processes the packet received from the external networks by executing the program, and the function enhancement module stores the program stored in the memory.
摘要:
Provided is a communication system which is provided with a plurality of communication devices and transfers a packet between the plurality of communication devices through a communication path. When a packet is looped back at any of the communication devices on the communication path to verify connectivity of the communication path, a first communication device of the plurality of communication devices stores, in a first region of header information of the packet, first information for designating the communication device at which the packet is looped back, further stores, in a second region of the header information of the packet, second information on a loopback point in the designated communication device at which the packet is looped back, and sends the packet to which the first information and the second information have been added.
摘要:
A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.
摘要:
A PON system capable of utilizing the bandwidth of an optical transmission channel in the PON section. In a PON system including an OLT and a plurality of ONUs, the OLT has: a downstream frame processing unit that removes at least part of the header information in a layer 2 header from a downstream frame received from a wide area network, and converts the remaining frame portion into a frame having a header specific to the PON section; and a downstream frame processing unit that extracts a downstream frame portion to be transferred to a user terminal, from a received frame from a PON, and adds the layer 2 header information deleted in the OLT.
摘要:
Compositions for low heat cements developed especially for massive concrete works and which exhibit a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of two inventions provides a powder prepared by mixing CaO, SiO.sub.2, and Al.sub.2 O.sub.3 materials, melting the mixture, quenching the melt, and grinding the quenched matter, the powder being composed mainly of amorphous substances and chemically having a CaO/SiO.sub.2 (molar ratio) of 0.8-1.5 and an Al.sub.2 O.sub.3 content of no more than 10 wt. %. The other invention provides a mixed powder comprising no less than 70 wt. % of a powder and no more than 30 wt. % of an addition (portland cement or the like), the powder being the same as that of the first invention in both predominance of amorphous substances and CaO/SiO.sub.2 (molar ratio) excepting the Al.sub.2 O.sub.3 content which is less than 12 wt. % in the second invention.