1. A requirements planning management method comprising:
identifying each approving stakeholder for a version of a requirement in a requirements plan;
creating traceability links between each approving stakeholder and the version of the requirement; and,
notifying each approving stakeholder having a traceability link to the version of the requirement whenever a new version of the requirement is proposed by a stakeholder.
2. The method of claim 1, further comprising:
merging multiple versions of the requirement into a single document;
displaying the single document to a viewing stakeholder; and,
marking up the single document to reflect differences between the single document and a most recent version of the requirement for the viewing stakeholder.
3. The method of claim 2, further comprising:
applying a plurality of annotations to the requirement;
displaying the annotations in the single document in association with corresponding sections of the requirement; and,
highlighting selected ones of the annotations that have been either added, removed, or changed since a most recent viewing of the requirement by the viewing stakeholder.
4. The method of claim 2, further comprising:
applying an annotation to the version of the requirement;
associating the annotation with a range of versions of the requirement; and,
filtering a display of the annotation in association with the displaying of the single document according to the range of versions of the requirement.
5. The method of claim 1, further comprising:
applying a question type annotation to the version of the requirement;
identifying a stakeholder responsible for creating the version of the requirement; and,
notifying the identified stakeholder of the question to solicit a comment type annotation by the identified stakeholder as a response to the question type annotation.
6. A requirements planning data processing system comprising:
a requirements planning system configured to maintain traceability links between a version of a requirement in a requirement plan and different stakeholders approving of the version of the requirement; and,
an annotation manager coupled to an annotation data store, the annotation manager comprising program code enabled to accept an annotation description for a version of a requirement and to store in association with the annotation description a scope for the annotation in respect to different versions of the requirement.
7. The system of claim 6, wherein the annotation description is one of a comment, objection and question.
8. The system of claim 6, wherein the scope for the annotation comprises a version start and a version end.
9. A computer program product comprising a computer usable medium embodying computer usable program code for requirements planning management, the computer program product comprising:
computer usable program code for identifying each approving stakeholder for a version of a requirement in a requirements plan;
computer usable program code for creating traceability links between each approving stakeholder and the version of the requirement; and,
computer usable program code for notifying each approving stakeholder having a traceability link to the version of the requirement whenever a new version of the requirement is proposed by a stakeholder.
10. The computer program product of claim 9, further comprising:
computer usable program code for merging multiple versions of the requirement into a single document;
computer usable program code for displaying the single document to a viewing stakeholder; and,
computer usable program code for marking up the single document to reflect differences between the single document and a most recent version of the requirement for the viewing stakeholder.
11. The computer program product of claim 10, further comprising:
computer usable program code for applying a plurality of annotations to the requirement;
computer usable program code for displaying the annotations in the single document in association with corresponding sections of the requirement; and,
computer usable program code for highlighting selected ones of the annotations that have been either added, removed, or changed since a most recent viewing of the requirement by the viewing stakeholder.
12. The computer program product of claim 10, further comprising:
computer usable program code for applying an annotation to the version of the requirement;
computer usable program code for associating the annotation with a range of versions of the requirement; and,
computer usable program code for filtering a display of the annotation in association with the displaying of the single document according to the range of versions of the requirement.
13. The computer program product of claim 9, further comprising:
computer usable program code for applying a question type annotation to the version of the requirement;
computer usable program code for identifying a stakeholder responsible for creating the version of the requirement; and,
computer usable program code for notifying the identified stakeholder of the question to solicit a comment type annotation by the identified stakeholder as a response to the question type annotation.
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 gas detecting device comprising:
a gas detecting unit having
a gas sensing layer, and
an adsorption layer;
a heater layer configured to heat the gas detecting unit; and
a drive processing unit configured to supply current to drive the heater layer and to acquire a sensor resistance from the gas sensing layer, the drive processing unit comprising at least one hardware processor configured to
drive the heater layer for an oxygen adsorption period t0 at an oxygen adsorption temperature T0 at which oxygen is adsorbed to the gas sensing layer,
drive the heater layer for a target gas adsorption period t1 at a target gas adsorption temperature T1 at which a target gas is adsorbed to the adsorption layer after the oxygen adsorption period t0 has elapsed,
drive the heater layer for a target gas desorption period t2 at a target gas desorption temperature T2 at which the target gas adsorbed to the adsorption layer is desorbed to move to the gas sensing layer after the target gas adsorption period t1 has elapsed, and
calculate a gas concentration of the target gas from the sensor resistance of the gas sensing layer after the target gas desorption period t2 has elapsed.
2. The gas detecting device according to claim 1, wherein
the target gas adsorption period t1 is longer than the oxygen adsorption period t0 and the target gas desorption period t2.
3. The gas detecting device according to claim 1, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, and the target gas desorption temperature T2 satisfy a relation of T1<T2\u2266T0.
4. The gas detecting device according to claim 2, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, and the target gas desorption temperature T2 satisfy a relation of T1<T2\u2266T0.
5. The gas detecting device according to claim 1, wherein
the at least one hardware processor is further configured to drive the heater layer for a target gas detection period t3 at a target gas detection temperature T3 at which the target gas is detected in the gas sensing layer after the target gas desorption period t2 has elapsed, and to calculate the gas concentration of the target gas from the sensor resistance of the gas sensing layer in the target gas detection period t3.
6. The gas detecting device according to claim 5, wherein
the target gas adsorption period t1 is longer than the oxygen adsorption period t0, the target gas desorption period t2, and the target gas detection period t3.
7. The gas detecting device according to claim 5, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, the target gas desorption temperature T2, and the target gas detection temperature T3 satisfy a relation of T1<T3\u2266T2\u2266T0 or T1<T2\u2266T3\u2266T0.
8. The gas detecting device according to claim 6, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, the target gas desorption temperature T2, and the target gas detection temperature T3 satisfy a relation of T1<T3\u2266T2\u2266T0 or T1<T2\u2266T3\u2266T0.
9. The gas detecting device according to claim 1, further comprising:
a silicon substrate having a through-hole or cavity under the gas detecting unit;
a thermal insulation supporting layer disposed on the silicon substrate, covering over the through-hole or cavity, and comprising a SiO2 layer; and
a silicon oxide film on the thermal insulation supporting layer, in which the heater layer is disposed, and supporting the gas detecting unit thereon.
10. A gas detection method comprising:
adsorbing oxygen to a gas sensing layer by heating a gas detecting unit, which includes the gas sensing layer and an adsorption layer, for an oxygen adsorption period t0 at an oxygen adsorption temperature T0 at which oxygen is adsorbed to the gas sensing layer;
adsorbing a target gas to the adsorption layer by heating the gas detecting unit for a target gas adsorption period t1 at a target gas adsorption temperature T1 at which the target gas is adsorbed to the adsorption layer, after the oxygen adsorption period t0 has elapsed;
desorbing the target gas absorbed to the adsorption later to move to the gas sensing layer by heating the gas detecting unit for a target gas desorption period t2 at a target gas desorption temperature T2 at which the target gas adsorbed to the adsorption layer is desorbed, after the target gas absorption period t1 has elapsed; and
calculating a gas concentration of the target gas from a sensor resistance of the gas sensing layer, after the target gas desorption period t2 has elapsed.
11. The gas detection method according to claim 10, wherein
the target gas adsorption period t1 is longer than the oxygen adsorption period t0 and the target gas desorption period t2.
12. The gas detection method according to claim 10, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, and the target gas desorption temperature T2 satisfy a relation of T1<T2\u2266T0.
13. The gas detection method according to claim 11, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, and the target gas desorption temperature T2 are in a relation of T1<T2\u2266T0.
14. The gas detection method according to claim 10, wherein
calculating the gas concentration involves heating the gas detecting unit for a target gas detection period t3 at a target gas detection temperature T3 at which the target gas is detected in the gas sensing layer after the elapse of the target gas desorption period t2, and calculating the gas concentration of the target gas from the sensor resistance of the gas sensing layer in the target gas detection period t3.
15. The gas detection method according to claim 11, wherein
calculating the gas concentration involves heating the gas detector for a target gas detection period t3 at a target gas detection temperature T3 at which the target gas is detected in the gas sensing layer after the elapse of the target gas desorption period t2, and calculating the gas concentration of the target gas from the sensor resistance of the gas sensing layer in the target gas detection period t3.
16. The gas detection method according to claim 14, wherein
the target gas adsorption period t1 is longer than the oxygen adsorption period t0, the target gas desorption period t2, and the target gas detection period t3.
17. The gas detection method according to claim 14, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, the target gas desorption temperature T2, and the target gas detection temperature T3 are in a relation of T1<T3\u2266T2\u2266T0 or T1<T2\u2266T3\u2266T0.
18. The gas detection method according to claim 15, wherein
the oxygen adsorption temperature T0, the target gas adsorption temperature T1, the target gas desorption temperature T2, and the target gas detection temperature T3 are in a relation of T1<T3\u2266T2\u2266T0 or T1<T2\u2266T3\u2266T0.