Abstract: A turbomachine includes a compressor, a turbine operatively connected to the compressor, and a combustion assembly fluidly connected between the compressor and the turbine. The combustion assembly includes an end cover including a plurality of fuel circuits, a fuel distributing flange fluidly connected to at least one of the plurality of fuel circuits, a nozzle assembly fluidly linked to the at least one of the plurality of fuel circuits, and a fuel distribution system configured and disposed to deliver fuel to the fuel distributing flange. The fuel distribution system is selectively activated to stage fuel delivery to the at least one of the plurality of fuel circuits at a pressure sufficient to achieve atomization at the nozzle assembly without requiring a supplemental atomization air flow prior to delivering fuel to others of the plurality of fuel circuits at a pressure to achieve atomization without requiring a supplemental atomization air flow.

Abstract: A front surface opened welding mask, in which an LCD shielding screen is simply attached to and detached from a welding plane and the LCD shielding screen is safely connected to the welding plane. The front surface opened welding mask includes a connection opening formed through the front surface of the welding plane, a front cover having a transparent window formed through the central portion thereof and attached to and detached from the connection opening, and buttons for connecting the front cover to the connection opening. The front cover having the transparent window is easily attached to and detached from the connection opening of the welding plane so that the LCD shielding screen is simply attached to and detached from the welding plane and a receiving portion fixes the LCD shielding screen without movement so that the LCD shielding screen is safely connected to the welding plane.

Abstract: The invention improves processing time when accessing information in a byte stream and avoids the step of deserializing unneeded portions of the byte stream when the byte stream encodes an information structure corresponding to a schema with arbitrarily nested lists and tuples. It facilitates efficient keyed access when lists of tuples represent tables with key columns by storing tables in nested column order, which extends the well-known concept of column-order so as to apply to arbitrarily nested tables. Using well-known offset calculation techniques within the nested lists that result from nested column order, the invention achieves greater efficiency by grouping together all scalar information items that correspond to the same node in a tree representation of the schema.