1. A terminal device including a radio unit which adopts code division multiple access (cdma), wherein
said radio unit including an RRC (Radio Resource Controller), and
said RRC starts cell re-selection in each predetermined cell re-selection cycle and when an in-zone cell remains unchanged before and after said cell re-selection, extends said cell re-selection cycle, wherein
said radio unit further including a measurement unit, wherein
said RRC outputs an in-zone cell monitoring start instruction to said measurement unit at the start of said cell re-selection and collates a reported in-zone cell received from said measurement unit and an in-zone cell obtained at the time of output of said monitoring start instruction to determined whether said cell re-selection cycle is to be extended, and
said measurement unit records a cell which becomes an in-zone cell for a desired period of time in response to said monitoring start instruction and counts the number of times when the cell becomes an in-zone cell to specify said reported in-zone cell based on the count result and send the obtained result to said RRC.
2. The terminal device as set forth in claim 1,
said radio unit further including a measurement unit, wherein
said RRC outputs an in-zone cell monitoring start instruction to said measurement unit at the start of said cell re-selection and collates a reported in-zone cell received from said measurement unit and an in-zone cell obtained at the time of output of said monitoring start instruction to determine whether said cell re-selection cycle is to be extended,
said measurement unit records a cell which becomes an in-zone cell for a desired period of time in response to said monitoring start instruction and counts the number of times when the cell becomes an in-zone cell to specify said reported in-zone cell based on the count result and send the obtained result to said RRC, and
said measurement unit reports, to said RRC, a cell counted as an in-zone cell a desired number of times or more as said reported in-zone cell.
3. The terminal device as set forth in claim 2, wherein
when there exists no cell which is counted as an in-zone cell a desired number of times or more, said measurement unit reports a cell monitored last in said desired period of time as said reported in-zone cell to said RRC.
4. The terminal device as set forth in claim 2, wherein
when there exists no cell which is counted as an in-zone cell a desired number of times or more, said measurement unit reports a cell counted most in said desired period of time as said reported in-zone cell to said RRC.
5. The terminal device as set forth in claim 1, wherein
said terminal device is a mobile phone.
6. The terminal device as set forth in claim 1, wherein
said terminal device is a digital camera.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A hydrogen gas storage tank that defines a tank cavity, the hydrogen gas storage tank comprising:
a composite layer comprising an epoxy resin matrix, a reinforcement, and a plurality of block copolymer vesicles, spherical or cylindrical micelles in an amount sufficient to improve a fatigue resistance of the resin matrix by retarding microcracking;
a polymeric layer coupled onto said composite layer and in communication with said tank cavity; and
a protective outer layer coupled over said composite layer such that said composite layer is between said protective outer layer and said polymeric layer.
2. A hydrogen gas storage tank as set forth in claim 1 wherein the reinforcement comprises fibers comprising at least one of carbon or silicon dioxide-based glass.
3. A hydrogen gas storage tank as set forth in claim 1 wherein the epoxy resin matrix comprises a copolymer of diglycidyl ether of bisphenol-A, and wherein the plurality of block copolymer vesicles, spherical or cylindrical micelles comprise poly(ethylene oxide-b-ethylene propylene).
4. A hydrogen gas storage tank as set forth in claim 1 wherein the epoxy resin matrix comprises a copolymer of diglycidyl ether of bisphenol-A, and wherein the plurality of block copolymer vesicles, spherical or cylindrical micelles comprise poly(butylene oxide-b-ethylene oxide).
5. A hydrogen gas storage tank as set forth in claim 1 further comprising hydrogen gas in the gas storage tank at a pressure of 5,000 psi or greater.
6. A hydrogen gas storage tank as set forth in claim 1 further comprising hydrogen gas in the gas storage tank at a pressure of 10,000 psi or greater.
7. A hydrogen gas storage tank as set forth in claim 1 constructed and arranged in an application that subjects the hydrogen gas storage tank to fatigue and wherein the plurality of block copolymer vesicles, spherical or cylindrical micelles provide the improved fatigue resistance.
8. A hydrogen gas storage tank as set forth in claim 1 wherein the polymeric layer comprises high-density polyethylene.
9. A hydrogen gas storage tank as set forth in claim 1 wherein the amount of the plurality of block copolymer vesicles, spherical or cylindrical micelles is sufficient to toughen the resin matrix.
10. A hydrogen gas storage tank as set forth in claim 1 wherein the reinforcement comprises silicon dioxide-based glass fibers.
11. A method comprising the steps of:
providing a hydrogen gas storage tank that defines a tank cavity, the hydrogen gas storage tank comprising:
a composite layer comprising an epoxy resin matrix, a reinforcement, and a plurality of block copolymer vesicles, spherical or cylindrical micelles in an amount sufficient to improve a fatigue resistance of the resin matrix by retarding microcracking;
a polymeric layer coupled onto said composite layer and in communication with said tank cavity;
and a protective outer layer coupled over said composite layer such that said composite layer is between said protective outer layer and said polymeric layer, and
subjecting the composite layer to dynamic stresses.
12. The method of claim 11, wherein the dynamic stresses are applied from pressurized hydrogen gas within the gas storage tank.
13. The method of claim 11, wherein the step of subjecting the composite layer to dynamic stresses includes the repeated steps of filling and discharging the hydrogen gas storage tank.
14. The method of claim 11, wherein the dynamic stresses are applied from repeated thermal cycling.
15. The method of claim 13, wherein at least some of the repeated steps of filling include filling the hydrogen gas storage tank to a pressure of 5000 psi or greater.