摘要:
A fluorine rubber composition that provides high tensile strength and high elongation after vulcanization mutually compatible and from which favorable mechanical characteristics are obtained even in a high-temperature environment; and a bladder for tire production, which is manufactured using the same are provided. The fluorine rubber composition includes a rubber component containing a fluorine rubber and carbon black, wherein the carbon black has a specific surface area by nitrogen adsorption (N2SA) of 25 m2/g or more and not more than 180 m2/g and a dibutyl phthalate (DBP) absorption amount of 60 mL/100 g or more and not more than 180 mill 00 g; and in a kneading step (A) of compounding the carbon black in the rubber component, an average shear rate of a rotor surface of a kneading machine is 100 (1/sec) or more, and a kneading maximum temperature Tm is 120° C. or higher and not higher than 200° C.
摘要:
It is provided a mobile communication system comprising base stations, call control servers and access gateways. The call control servers cause a mobile terminal accommodated in one of the control server to transmit the location registration request so that the mobile terminal accommodates in another control server according to a processing amount of control signals. The base station selects a second call control server into which the one of the mobile terminals is to be newly accommodated. The one of the call control server switches to a power-saving state after the mobile terminal is accommodated into the another call control server.
摘要:
This invention relates to a resin composite copper foil capable of applying a copper foil with very small unevenness on a copper foil (matte) surface without deteriorating adhesion force to a resin composition of a copper-clad laminate, and more particularly to a resin composite copper foil comprising a copper foil and a polyimide resin layer wherein the polyimide resin layer contains a specific block copolymerized polyimide resin and an inorganic filler.
摘要:
A resin composite copper foil comprising a copper foil and a resin layer containing a block copolymer polyimide and a maleimide compound, the resin layer being formed on one surface of the copper foil, a production process thereof, a copper-clad laminate using the resin composite copper foil, a production process of a printed wiring board using the copper-clad laminate, and a printed wiring board obtained by the above process.
摘要:
A resin composite metal foil comprising a metal foil and a layer of a block copolymer polyimide resin formed on one surface of the metal foil, a metal-foil-clad laminate using the above resin composite metal foil, a printed wiring board using the above metal-foil-clad laminate, and a process for the production of a printed wiring board comprising removing an external layer metal foil of a metal-foil-clad laminate and forming a conductor layer on an external layer insulating layer by plating, wherein the metal-foil-clad laminate comprises a layer of a block copolymer polyimide resin which layer is in contact with the external layer metal foil.
摘要:
The present invention implements communication control with user's service subscription information reflected in a mobile communication network. A QoS control server for providing a communication quality control function of a network, a user information management server for managing user's service information, a service proxy server for transferring a service control message transmitted by a user to a service control server, a service relay server for relaying a message between service control servers in two different networks, and a service control server for exercising service control based on user service information are included. In user service start processing, the service control server or service relay server transmits a service control message inclusive of service subscription information acquired beforehand to the service proxy server. The QoS control server acquires the service subscription information from the service proxy server. Thus, subscriber information is reflected to communication quality control processing.
摘要:
A session QoS control arrangement wherein for an occurrence of user session information indicating a change of user state and/or a change of session condition from a user communication terminal: said session information analysis means analyses the session state of the user terminal in real-time by referring to said session management database and said user preference database; and, said session QoS control means determines the QoS policy for the user session in real-time, based on the result of session analysis performed by said session information analysis means.
摘要:
A handoff method of wireless LAN comprises the steps of: 1) immediately starting by a mobile terminal to count time from a time point of entering the wireless LAN or building the new association, that is, when building association with a certain access point; 2) always tracking a signal-to-noise ratio (SNR) of the old access point by the mobile terminal, and once the mobile terminal starts getting weak, starting to search for a near access point and making a preparation for handoff, and issuing a probe request signal to a new access point, and always responding to a probe response message by the new access point after receiving the probe request signal; and 3) judging by the mobile terminal whether or not to associate the new access point according to a signal strength and an association time of each of the access points, and if a judging result is yes, issuing the reassociation request signal to the new access point. Accordingly, the new access point issues a reassociation response message to build the new association.
摘要:
A silicone rubber composition for the tire production comprises (A) 100 parts by weight of a specified alkenyl group-containing straight-chain diorganopolysiloxane, (B) 1-20 parts by weight of a specified hydrogen atom-containing organohydrogenpolysiloxane, (C) 30-60 parts by weight of an inorganic filler, (D) 0.5-20 parts by weight of a specified alkenyl group-containing straight-chain diorganopolysiloxane having a weight average molecular weight smaller than that of the component (A), and (E) 5-300 ppm of a platinum group metal catalyst as a conversion by weight of platinum group metal to the total amount of the components (A), (B) and (D), provided that the component (D) is previously uniformly mixed with the component (E) and then mixed with the remaining components.
摘要:
A mobile communication system with a packet switching function which enables sharing of radio resources among mobile stations, wherein a mobile station which has generated a request for communication quality assurance periodically sends a packet for requesting preferential use of a radio channel in order to prevent timeout of the state transition timer, timeout of which would cancel radio channel assignment to the mobile station and bring it into a dormant state if a certain period elapses without transmission or reception of a signal, so that it can remain in the active state and hold the radio channel continuously. In addition, when the mobile station requesting communication quality assurance moves from one cell to another or requests radio channel assignment, the base station controller controls the radio base station so that the mobile station can be assigned a radio channel by sending a priority request packet.