1. A computer-implemented method for graphical object-based access control of computerized devices, comprising:
receiving a designation of a set of authentication credentials for accessing a computerized device, the set of authentication credentials comprising at least one graphical object selected from among a plurality of graphical objects and at least one user interaction with the at least one graphical object;
storing the set of authentication credentials in a computer storage device;
receiving a selection of a particular graphical object from the set of graphical objects from a proposed user; and
determining whether the selection of the particular graphical object and any particular user interaction with the particular graphical object match the set of authentication credentials stored in the computer storage device.
2. The computer-implemented method of claim 1, the graphical object being selected from a group consisting of: a graphical icon, a graphical shortcut, a graphical shape, or a graphical pattern.
3. The computer-implemented method of claim 1, further comprising receiving a particular user interaction with the particular graphical object from the proposed user.
4. The computer-implemented method of claim 1, the particular user interaction comprising at least one of the following: a physical manipulation of the particular graphical object as displayed on the display, or a sound-based interaction with the particular graphical object.
5. The computer-implemented method of claim 4, wherein the physical manipulation is to move a part or a portion of the particular graphical object with a path.
6. The computer-implemented method of claim 4, wherein the physical manipulation is to move a part or a portion of the particular graphical object without a path.
7. The computer-implemented method of claim 6, further comprising storing a start position and a finish position of the movement of the part or the portion of the particular graphical object.
8. The computer-implemented method of claim 1, further comprising granting access to the computerized device if the particular graphical object selected and the particular user interaction match the set of authentication credentials.
9. The computer-implemented method of claim 1, further comprising prompting the proposed user to input a password.
10. The computer-implemented method of claim 1, the designation of the set of authentication credentials being received from an authorized user of the computerized device.
11. The computer-implemented method of claim 1, the computerized device comprising one of the following: a handheld device or a computerized tablet, and the display of the computerized device comprising an interactive screen.
12. A system for graphical object-based access control of computerized devices, comprising:
a memory medium comprising instructions;
a bus coupled to the memory medium; and
a processor coupled to the bus that when executing the instructions causes the system to:
receive a designation of a set of authentication credentials for accessing a computerized device, the set of authentication credentials comprising at least one graphical object selected from among a plurality of graphical objects and at least one user interaction with the at least one graphical object;
store the set of authentication credentials in a computer storage device;
receive a selection of a particular graphical object from the set of graphical objects from a proposed user; and
determine whether the selection of the particular graphical object and any particular user interaction with the particular graphical object match the set of authentication credentials stored in the computer storage device.
13. The system of claim 12, the memory medium further comprising instructions for causing the system to receive a particular user interaction with the particular graphical object from the proposed user.
14. The system of claim 12, the memory medium further comprising instructions for causing the system to grant access to the computerized device if the particular graphical object selected and the particular user interaction match the set of authentication credentials.
15. The system of claim 12, further comprising prompting the proposed user to input a password.
16. The system of claim 12, the designation of the set of authentication credentials being received from an authorized user of the computerized device.
17. The system of claim 12, the computerized device comprising one of the following: a handheld device or a computerized tablet, and the display of the computerized device comprising an interactive screen.
18. A computer program product for graphical object-based access control of computerized devices, the computer program product comprising a computer readable storage media, and program instructions stored on the computer readable storage media, to:
receive a designation of a set of authentication credentials for accessing a computerized device, the set of authentication credentials comprising at least one graphical object selected from among a plurality of graphical objects and at least one user interaction with the at least one graphical object;
store the set of authentication credentials in a computer storage device;
receive a selection of a particular graphical object from the set of graphical objects from a proposed user; and
determine whether the selection of the particular graphical object and any particular user interaction with the particular graphical object match the set of authentication credentials stored in the computer storage device.
19. The computer program product claim 18, the computer readable storage media further comprising instructions to grant access to the computerized device if the particular graphical object selected and the particular user interaction match the set of authentication credentials.
20. A method for deploying a system graphical object-based access control of computerized devices, comprising:
providing a computer infrastructure being operable to:
receive a designation of a set of authentication credentials for accessing a computerized device, the set of authentication credentials comprising at least one graphical object selected from among a plurality of graphical objects and at least one user interaction with the at least one graphical object;
store the set of authentication credentials in a computer storage device;
receive a selection of a particular graphical object from the set of graphical objects from a proposed user; and
determine whether the selection of the particular graphical object and any particular user interaction with the particular graphical object match the set of authentication credentials stored in the computer storage device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method of removing at least a portion of a ceramic coating from a component, the method comprising the step of subjecting the portion of the ceramic coating to an aqueous solution comprising ammonium bifluoride.
2. A method according to claim 1, wherein the subjecting step comprises immersing the component in the solution.
3. A method according to claim 2, wherein the subjecting step further comprises directing ultrasonic energy at the ceramic coating while the component is immersed in the solution.
4. A method according to claim 1, wherein the solution comprises about 20 to about 70 grams of ammonium bifluoride per liter of the solution, the balance essentially water.
5. A method according to claim 1, wherein the solution comprises about 20 to about 70 grams of ammonium bifluoride per liter of the solution, about 0.05 to about 0.2 volume percent wetting agent, the balance essentially water.
6. A method according to claim 1, wherein the solution further comprises acetic acid.
7. A method according to claim 6, wherein the solution comprises about 10 to about 20 grams of acetic acid per liter of the solution, about 20 to about 70 grams of ammonium bifluoride per liter of the solution, about 0.05 to about 0.2 volume percent wetting agent, the balance essentially water.
8. A method according to claim 1, wherein the wetting agent comprises about 1 to 3 weight percent polyethylene glycol with the balance being essentially octylphenoxy polyethoxyethanol.
9. A method according to claim 1, wherein the subjecting step further comprises heating the component and the solution to about 60 C. to about 68 C.
10. A method according to claim 1, wherein the component further comprises a metallic bond coat adhering the ceramic coating to the component, and wherein the solution does not remove the bond coat.
11. A method according to claim 10, wherein the bond coat is a diffusion aluminide.
12. A method according to claim 1, further comprising the step of depositing a ceramic material on a surface of the component exposed when the portion of the ceramic coating was removed.
13. A method according to claim 1, wherein the component is a component of a gas turbine engine.
14. A method of removing a thermal-insulating YSZ layer from a gas turbine engine component without removing a metallic bond coat on a surface of the component that adheres the YSZ layer to the component, the method comprising the step of immersing the component in an aqueous solution comprising ammonium bifluoride and a wetting agent comprising contain about 1 to 3 weight percent polyethylene glycol with the balance being essentially octylphenoxy polyethoxyethanol.
15. A method according to claim 14, wherein the immersing step further comprises directing ultrasonic energy at the YSZ layer while the component is immersed in the solution.
16. A method according to claim 14, wherein the solution comprises about 30 to about 40 grams of ammonium bifluoride per liter of the solution, about 0.1 to about 0.2 volume percent wetting agent, the balance essentially water.
17. A method according to claim 14, wherein the solution further comprises about 10 to about 20 grams of acetic acid per liter of the solution.
18. A method according to claim 14, wherein the immersing step further comprises heating the component and the solution to about 60 C. to about 68 C.
19. A method according to claim 14, wherein the bond coat is a diffusion aluminide.
20. A method according to claim 14, further comprising the step of depositing a YSZ material on a surface of the bond coat exposed when the YSZ layer was removed.