Abstract: The present disclosure provides a method for maintaining stable combustion of a gas turbine during a dynamic process, a computer-readable medium, and a gas turbine control system. The method comprises: compensating a fuel control valve stroke command ?f,CLC with a fuel flow compensation function Gf,COMP(s); and compensating a VIGV command ?VIGV,CLC with an air flow compensation function Gair,COMP(s), wherein the fuel flow compensation function Gf,COMP(s) and the air flow compensation function Gair,COMP(s) satisfy the following relation: Gf,COMP(s)·Gf(s)=Gair,COMP(s)·Gair(s), and an fuel-to-air ratio is directly proportional to ?f,CLC/?VIGV,CLC even during the dynamic process, where Gf(s) represents an overall transfer function of a fuel channel from a fuel control valve servo system to an inlet of a combustion chamber, and Gair(s) represents an overall transfer function of an air channel from a VIGV servo system to the inlet of the combustion chamber.

Abstract: A cooling purified air breathing system for use during activity or in warm environments. The system includes a wearable portable air purifier having an opening for discharging cooling air, and a face mask configured to cover at least a user's nose and mouth. Air tubing is used to direct cooling filtered air into the mask, either through an opening or via a clip and connector attached to an edge of the mask. The air purifier is preferably worn in close proximity to the mask, such as around the back of the neck of the user.

Abstract: A dust mop head which requires limited handling of a disposable cloth before, during and after use, is described. The mop head includes a base having upper and lower surfaces and lateral side edges, movable first and second lateral side members, and a first connector configured to move between an engaged or closed position and a disengaged or open position. The connector couples the movable first and second lateral side members to the base such that each of the movable first and second lateral side members abuts one of the lateral side edges of the base when the first connector is in the engaged position. Further, an actuatable release mechanism operatively coupled to the first connector permits movement to the disengaged/open position when the release mechanism is actuated. The unique mechanisms within the mop head allow a cloth to be acquired and released without the user having to handle the cloth.

Abstract: A mobile device case system includes a first case system component usable to at least partially enclose a mobile device. A second case system component is attachable to the first case component (e.g., mechanically and/or electronically) to provide additional features and functionality such as, for example, an expansion battery and/or an external display. The second case system component can be replaced with other system components to, for example, change the display, replace the battery, or provide a decorative cover for the external surface of the case system.

Abstract: A system, client and method for transmitting preview message in an instant messaging system are disclosed by the present invention.

Abstract: A system, client and method for transmitting preview message in an instant messaging system are disclosed by the present invention.

Abstract: Disclosed herein is an information feedback method and system based on instant messaging relating to telecommunication techniques. An instant messaging system obtains a location of a mobile terminal from a mobile positioning system according to request information of the mobile terminal. An automatic information processing system generates location-based information according to the content of the request information and obtained location. The instant messaging system feeds back the location-based information to the mobile terminal. The request information that the mobile terminal sends to the instant messaging system includes an instant messaging identifier of the mobile terminal. The instant messaging system obtains a corresponding and relevant mobile identifier according to the instant messaging identifier.