Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a hybrid model predictive control (HMPC) module, the HMPC module receiving power goals and operability limits and determining a multi-variable control command for the gas turbine engine, the multi-variable control command determined using the power goals, the operability limits, actuator goals, sensor signals, and synthesis signals. The control system may further include system sensors for determining the sensor signals and a non-linear engine model for estimating corrected speed signals and synthesis signals using the sensor signals, the synthesis signals including an estimated stall margin remaining. The control system may further include a goal generation module for determining actuator goals for the HMPC module using the corrected speed signals and an actuator for controlling the gas turbine engine based on the multivariable control command.

Abstract: A check valve housing is provided and includes a base having opposite sides which are configured to form linear contact surfaces with check valve flappers pivotably disposed on either side of the base, respectively, and an additional structural member having a continuous body and opposite sides which are configured to form additional contact surfaces with each of the check valve flappers, respectively, the check valve flappers being configured to form a lip extending beyond the additional structural member.

Abstract: A power tool includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.

Abstract: Provided herein is a method of screening a tumour cell for resistance to a tubulin-binding agent, the method comprising detecting the expression of any one or more of class II, class III and class IVb ?-tubulin by the tumour cell, wherein the expression of any one or more of class II, class III and class IVb ?-tubulin indicates that the tumour cell has resistance or potential resistance to the tubulin-binding agent. Also provided are methods of modulating the sensitivity of a tumour cell Also provided is a method of modulating the tumorigenesis of a tumour cell.

Abstract: A method of flushing liquid fuel from valves and nozzles in a gas turbine is conducted via a mixing valve including flow passages for fuel and water. In the method, water is flowed through the flow passages, and the flow is interrupted for a period of no flow. This flow profile is repeated such that the water flow is pulsed through the flow passages.

Abstract: One or more techniques and/or systems are disclosed for providing a client application with access to a file based upon a local offline version of the file and/or web online version of the file. That is, a file may be shared/synchronized from a remote source, such as a web storage service. A web online version of the file may be maintained by the web storage service, while local offline versions of the file may be stored at client devices. A sync module comprising knowledge of the local and/or web versions of the file may provide a client application with access to the file based upon the local and/or web version of the file. The sync module may also delegate synchronization authorization to the client application given that the client application may comprise sophisticated file handling functionality.

Abstract: A nasal or full-face mask frame includes a main body and a vent assembly provided to the main body. The vent assembly includes a plurality of holes arranged in at least one column. The holes are positioned on a relatively flat and/or non-recessed portion of the main body.

Abstract: A nasal or full-face mask frame includes a main body and a vent assembly provided to the main body. The vent assembly includes a plurality of holes arranged in at least one column. The holes are positioned on a relatively flat and/or non-recessed portion of the main body.

Abstract: The size of attachments to an electronic message are examined before the message is sent to determine if the attachments exceed a size threshold. When the size of the attachments exceed the threshold, one or more of the attachments are uploaded to a shared location that is accessible to the recipients of the message. A link replaces each attachment that was uploaded to the shared location. Permissions are automatically set at the shared location such that each of the recipients of the message are able to access the uploaded attachment.

Abstract: Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and/or by additional irrigation.

Abstract: In an embodiment, circuitry may be provided that may execute at least one interface process in a user space of a host. The host, in operation, also may have a kernel space. The at least one process may provide at least one interface, at least in part, between at least one virtual appliance and at least one virtual data plane. The at least one virtual data plane may facilitate communication between at least one physical device and the at least one virtual appliance via the at least one interface. The at least one physical device may appear to the at least one virtual appliance, when the at least one virtual appliance communicates with the at least one physical device via the at least one interface, as at least one local device. The at least one virtual appliance and the at least one interface may be resident in the user space.

Abstract: A cushion assembly for use with a respiratory mask includes a bladder filled with the combination of a gel having a first indentation hardness and a gel having a second indentation hardness.

Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a hybrid model predictive control (HMPC) module, the HMPC module receiving power goals and operability limits and determining a multi-variable control command for the gas turbine engine, the multi-variable control command determined using the power goals, the operability limits, actuator goals, sensor signals, and synthesis signals. The control system may further include system sensors for determining the sensor signals and a non-linear engine model for estimating corrected speed signals and synthesis signals using the sensor signals, the synthesis signals including an estimated stall margin remaining. The control system may further include a goal generation module for determining actuator goals for the HMPC module using the corrected speed signals and an actuator for controlling the gas turbine engine based on the multivariable control command.

Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a hybrid model predictive control (HMPC) module, the HMPC module receiving power goals and operability limits and determining a multi-variable control command for the gas turbine engine, the multi-variable control command determined using the power goals, the operability limits, actuator goals, sensor signals, and synthesis signals. The control system may further include system sensors for determining the sensor signals and a non-linear engine model for estimating corrected speed signals and synthesis signals using the sensor signals, the synthesis signals including an estimated stall margin remaining. The control system may further include a goal generation module for determining actuator goals for the HMPC module using the corrected speed signals and an actuator for controlling the gas turbine engine based on the multivariable control command.

Abstract: A method of purging a combustor is provided. The method includes opening an isolation valve configured to regulate a flow rate of a fluid sent to at least one fuel nozzle of a combustor. The method also includes opening a control valve located upstream of the isolation valve after opening the isolation valve, wherein the isolation valve and the control valve are located within a fluid supply line.

Abstract: Headgear for a respiratory mask assembly includes at least one strap. The at least one strap includes one or more bladders filled with a gel.

Abstract: An adjustable light fixture including a base and a mounting member configured to movably connect a light source to the base. The mounting member is configured to rotate about a rotational axis that moves relative to the base. The adjustably light fixture can be implemented as an overhead light fixture by connecting the base to a ceiling. Also provided is a method adjusting an overhead light fixture including rotating a mounting member and translating the mounting member relative to a base.

Abstract: A link to a file to be stored at a network location is calculated using a client before the file is uploaded to the network location. The client may calculate the link to the network location either while online or offline. In response to determining to upload a file, a link to the file at the network location is calculated before uploading the file. The created link may be a direct link that specifies the file at the network location as the destination of the link and/or a redirect link that when used redirects the user to the file at the network location. The link may be created using various information (e.g. a default location, filename, and/or a unique key). When online, the client may reserve a specific link with the network location before the file is uploaded.

Abstract: A patient interface includes a cushioning structure including at least one hollow chamber filled with first and second discrete and/or layered filling materials and a seal forming structure formed in one piece with the cushioning structure. The seal forming structure includes a thin membrane flap that is structured to provide a seal to the patient's face. The chamber extends only around a portion of the perimeter of the cushioning structure such that the chamber with first and second filling materials is provided in cheek and lip regions of the cushioning structure and a solid silicone portion is provided in a nasal bridge region of the cushioning structure.