Abstract: Methods, systems, and computer program products for direct assignment of physical devices to confidential virtual machines (VMs). At a first guest privilege context of a guest partition, a direct assignment of a physical device associated with a host computer system to the guest partition is identified. The guest partition includes the first guest privilege context and a second guest privilege context, which is restricted from accessing memory associated with the first guest privilege context. The guest partition corresponds to a confidential VM, such that a memory region associated with the guest partition is inaccessible to a host operating system. It is determined, based on a policy, that the physical device is allowed to be directly assigned to the guest partition. Communication between the physical device and the second guest privilege context is permitted, such as by exposing the physical device on a virtual bus and/or forwarding an interrupt.

Abstract: A bioprocess system and a method for incubating, growing and harvesting cell cultures is described. Also disclosed is a bioprocess container that can be used with the system. In one aspect of the present disclosure, the bioprocess system includes bioprocess tubes and cell culture tubes having particular dimensions and being made from specific materials that allow the tubes to be welded together while preventing open connections and/or ruptures. In this manner, bioprocess containers can be connected and disconnected from a cell culture apparatus without having to perform the manipulation within a closed environment and without associated monitoring.

Abstract: An apparatus for circulating air in a space using a fan, a sensor for sensing an ambient condition, and a user input for inputting a desired condition. A controller is configured for controlling the fan to operate substantially at a first fan speed for the desired condition, and controlling the fan to operate substantially at a second fan speed for the sensed ambient condition. Related methods are also disclosed.

Abstract: An apparatus is provided for controlling environmental conditions using a fan and a light in connection with a building having a space including a partition, such as a wall. The apparatus may include a control adapted for being mounted to the partition and for coordinating the control of the fan and the light based on a sensed condition, such as temperature or occupancy. Groups of like devices for controlling environmental conditions may be similarly controlled, such as using control. Control may also provide an indication of an operational state of the device(s) controlled by it, or provide for control based on a preference of one or more people upon detecting their presence. Related methods are also described.

Abstract: A fan, such as a ceiling fan, includes a learning mode of operation. This learning mode may permit a user to input a desired speed for the fan for a given condition, such as ambient temperature, and adjustments for other conditions would be automatically determined based on the user input. A subsequent selection of fan speed at that condition (such as, for example, for a different user) or a different condition setting would also be obtained, either during initialization or later, and then used as an updated measure of the desired fan speed for the condition. Related methods of controlling the operation of a fan are also disclosed.

Abstract: A fan, such as a ceiling fan, includes a learning mode of operation. This learning mode may permit a user to input a desired speed for the fan for a given condition, such as ambient temperature, and adjustments for other conditions would be automatically determined based on the user input. A subsequent selection of fan speed at that condition (such as, for example, for a different user) or a different condition setting would also be obtained, either during initialization or later, and then used as an updated measure of the desired fan speed for the condition. Related methods of controlling the operation of a fan are also disclosed.

Abstract: A fan, such as a ceiling fan, includes a learning mode of operation. This learning mode may permit a user to input a desired speed for the fan for a given condition, such as ambient temperature, and adjustments for other conditions would be automatically determined based on the user input. A subsequent selection of fan speed at that condition (such as, for example, for a different user) or a different condition setting would also be obtained, either during initialization or later, and then used as an updated measure of the desired fan speed for the condition. Related methods of controlling the operation of a fan are also disclosed.

Abstract: A fastener cover assembly is disclosed. The cover assembly includes a turbomachinery component having an outer surface exposed to an air flow path; at least one recess formed in the outer surface; a fastener contained in the at least one recess; and a fastener cover secured in the at least one recess, the cover having an outer surface substantially flush with the outer surface of the component to minimize air flow disruption.

Abstract: A device for attaching items to walls, ceilings etc. comprises a plurality of cells wherein each cell comprises a contact fixing and a coupling, and wherein each is attached to its neighbour by a means, such as a hinge or flexible joint, allowing articulation therebetween. The device further has a means for locking the articulation between adjacent cells. The contact fixing advantageously comprises one or more magnets, allowing the device to attach to suitable metals such as the side of a vehicle. The device allows a strong fixing to be obtained, from the combined fixing action of multiple cells, whilst allowing removal a single cell at a time. The invention further extends to an associated article—which may act as the means for locking the articulation—for attaching to the device, such as a shelf, rack or other item. The article may have attachment points arranged to couple to multiple cells, and, when attached, to maintain the cells in a fixed positional relationship to each other.

Abstract: A turbomachinery rotor apparatus includes: a rotatable disk having an array of slots spaced around its periphery; an array of blades installed in the slots, wherein the blades have variable weights; and a plurality of connection components installed in the disk, each connection component forming a portion of a mechanical joint between one of the blades and its respective slot, wherein the connection components have variable weights.

Abstract: A load absorbing system that may include a rotor blade retention system is provided. The load absorbing system may include a block, a first retainer plate, and a deformable core. The block may be selectively positioned alongside a dovetail groove. The block may have a first face directed away from the blade root and an axially-spaced second face directed toward the blade root. The first retainer plate may be attached to the second face of the block and axially positioned between the block and the axially-directed surface of the blade root. The deformable core may be positioned between the block and the first retainer plate.

Abstract: A fastener cover assembly is disclosed. The cover assembly includes a turbomachinery component having an outer surface exposed to an air flow path; at least one recess formed in the outer surface; a fastener contained in the at least one recess; and a fastener cover secured in the at least one recess, the cover having an outer surface substantially flush with the outer surface of the component to minimize air flow disruption.

Abstract: A device for attaching items to walls, ceilings etc. comprises a plurality of cells wherein each cell comprises a contact fixing and a coupling, and wherein each is attached to its neighbour by a means, such as a hinge or flexible joint, allowing articulation therebetween. The device further has a means for locking the articulation between adjacent cells. The contact fixing advantageously comprises one or more magnets, allowing the device to attach to suitable metals such as the side of a vehicle. The device allows a strong fixing to be obtained, from the combined fixing action of multiple cells, whilst allowing removal a single cell at a time. The invention further extends to an associated article—which may act as the means for locking the articulation—for attaching to the device, such as a shelf, rack or other item. The article may have attachment points arranged to couple to multiple cells, and, when attached, to maintain the cells in a fixed positional relationship to each other.

Abstract: A bioprocess system and a method for incubating, growing and harvesting cell cultures is described. Also disclosed is a bioprocess container that can be used with the system. In one aspect of the present disclosure, the bioprocess system includes bioprocess tubes and cell culture tubes having particular dimensions and being made from specific materials that allow the tubes to be welded together while preventing open connections and/or ruptures. In this manner, bioprocess containers can be connected and disconnected from a cell culture apparatus without having to perform the manipulation within a closed environment and without associated monitoring.

Abstract: A hybrid support ring comprises a suspender and a belt, the suspender defined by a flange and a leg rearwardly extending having a lug, the suspender also extending circumferentially, the suspender formed of a first material, the belt extending circumferentially and disposed in the lug, the belt being formed of a second material.

Abstract: A turbomachinery rotor apparatus includes: a rotatable disk having an array of slots spaced around its periphery; an array of blades installed in the slots, wherein the blades have variable weights; and a plurality of connection components installed in the disk, each connection component forming a portion of a mechanical joint between one of the blades and its respective slot, wherein the connection components have variable weights.

Abstract: A load absorbing system that may include a rotor blade retention system is provided. The load absorbing system may include a block, a first retainer plate, and a deformable core. The block may be selectively positioned alongside a dovetail groove. The block may have a first face directed away from the blade root and an axially-spaced second face directed toward the blade root. The first retainer plate may be attached to the second face of the block and axially positioned between the block and the axially-directed surface of the blade root. The deformable core may be positioned between the block and the first retainer plate.

Abstract: An apparatus is provided for controlling environmental conditions using a fan and a light in connection with a building having a space including a partition, such as a wall. The apparatus may include a control adapted for being mounted to the partition and for coordinating the control of the fan and the light based on a sensed condition, such as temperature or occupancy. Groups of like devices for controlling environmental conditions may be similarly controlled, such as using control. Control may also provide an indication of an operational state of the device(s) controlled by it, or provide for control based on a preference of one or more people upon detecting their presence. Related methods are also described.

Abstract: A fan, such as a ceiling fan, includes a learning mode of operation. This learning mode may permit a user to input a desired speed for the fan for a given condition, such as ambient temperature, and adjustments for other conditions would be automatically determined based on the user input. A subsequent selection of fan speed at that condition (such as, for example, for a different user) or a different condition setting would also be obtained, either during initialization or later, and then used as an updated measure of the desired fan speed for the condition. Related methods of controlling the operation of a fan are also disclosed.

Abstract: A method for the separation and simultaneous determination of urinary D- and L-lactic acid enantiomers by high performance liquid chromatography tandem mass spectrometry (HPLC/MS/MS). The chiral separation was done using a chirobiotic teicoplanin aglycone column varying mobile phase parameters such as the acetic acid/triethylamine content and the aqueous/organic ratio.