Abstract:
Disclosed herein are attic stair assemblies, in which each attic stair assembly may include: a frame that may include: a first wall; and a second wall; a stair coupled to the frame closer to the first wall than the second wall; a floorboard disposed above the stair; a port extending through the frame and the floorboard; and a support frame removably coupled to the floorboard that may include: a first leg having a first leg upper end, wherein the first leg may be closer to the first wall than the second wall; and a second leg having a second leg upper end, wherein the second leg may be shorter than the first leg and may be closer to the first wall than the second wall; and a rail portion extending from the first leg upper end to the second leg upper end at a first acute angle to the floorboard.
Abstract:
Techniques to provide run-time access to a database image through a target database management system (DBMS) are described. An empty database in the target DBMS (the “target database”) is created having substantially the same schema as the database image. At run-time, queries directed to the target database are intercepted and redirected to the database image. Information returned in response to the redirected query is modified so that internal database identifiers retrieved from the database image are replaced with like database identifiers associated with the target database management system. Thus, run-time access to database image content is provided without the need to load the database image's data content into a target database.
Abstract:
Methods and systems for providing access to spaces in a database during a recovery process affecting the database. Spaces in the database that are affected by the recovery process are identified and I/O requests sent to a media manager associated with the database are intercepted. If the I/O request is for a read operation to a space affected by the recovery process and the corresponding page has been recovered, the data in the page may be read. If the page has not been recovered, the read operation may be held in a cache until the recovery utility indicates that the page has been recovered. If the I/O request is for a write operation to a space affected by the recovery process, the data may be written to a cache.
Abstract:
A mixture comprised of about 60-85% of 2,4-toluenediamine (2,4-TDA) and about 15-40% of 2,6-toluenediamine (2,6-TDA) is melted, the temperature of the mixture is lowered to a 2,4-TDA nucleation temperature, and the temperature of the mixture is gradually reduced from the nucleation temperature to about 65 to about 70° C. The resultant mixture is in the form of a solids phase enriched in 2,4-TDA, and a novel and useful liquid phase enriched in 2,6-TDA. These phases are separated. Preferably the solids are further purified by “sweating” them and removing the sweated liquid impurities. The sweated liquid can be recycled together with another charge of a mixture comprised of 2,4-TDA and 2,6-TDA. 2,4-TDA can be produced with a purity of 96-99%.
Abstract:
An arctic drilling barge to perform offshore activities in the shallow water, fast ice regions of the arctic seas. Optimal ice interaction is obtained by shaping the hull of the barge in the form of an upright frustum. Ice which does adhere to the barge is detached and melted by circulating fluid through a plurality of interior hull compartments next to the hull sidewalls of the barge.
Abstract:
A biocontainer having a first film, the film having an interior and exterior side; articulating elements disposed on or within the first film, the articulating elements comprising at least one a folded hinge, a sealed joint, a thinned pathway, a bowed path, an embedded polymeric or metallic cylindrical fiber or rod; and a second film, optionally comprising articulating elements, joined to the first film, to form a biocontainer having a closed volume, wherein the articulating elements permit the biocontainer to expand and collapse along the articulating elements.