摘要:
A power supply and control device for a plurality of electric actuators, the device comprising a control circuit and a power circuit, the power circuit having an inverter module connected to a switch module provided with connection means for connection to the actuators, the control circuit being connected to the switch module to operate it so as to connect the actuators sequentially to the inverter module, wherein the control circuit is arranged to control the inverter module and the switch module sequentially, and wherein the control circuit includes a monitoring module arranged to detect a malfunction of the device. An actuator assembly comprising a plurality of actuators and such a power supply and control device, and an aircraft including a plurality of actuators and such a power supply and control device of the above-specified type.
摘要:
In a first aspect, the invention concerns a method for detecting or quantifying DNA methylation at a locus. In one embodiment, a methylation-sensitive endonuclease is formulated together with a polymerase enzyme in an appropriate reaction mixture such that amplification of DNA occurs in a methylation specific manor. Quantitative DNA amplification at selected loci can be used to determine the level of methylation. Kits and reagents for performing such methods are also provided.
摘要:
A static vane ring for gas turbine engines includes a plurality of radial struts extending between and interconnecting outer and inner duct walls which define an annular duct therebetween. A load transfer apparatus is attached to at least one of the outer and inner duct walls to transfer load from vane to ring, and between vanes.
摘要:
A gas turbine engine has an engine casing component, such as a mid turbine frame system, which may includes an outer case surrounding a spoke or strut casing. Load transfer spokes of the spoke casing extend between the outer case and an inner case of the spoke casing. A bearing housing supported by the engine casing may include a fuse arrangement for isolating bearing seizure loads from the engine casing. A seal arrangement may be provided to centralize the rotors after the fuse fails. The mid turbine frame may be provided to have a desired flexibility through the configuration of the casing and bearings in design.
摘要:
A drawing take off system itemizes components shown on a paper drawing. The take off system includes a sleeve for holding a standard pen, a computer having a software module, and an interface connection between the sleeve and the computer. The software module maintains a list of each component model shown on the drawing. The sleeve includes a pen stroke switch for counting pen strokes and a component selection switch for selecting a component model from the component model list compiled in the software module. As an estimator marks components on the paper drawing, the take off system counts pen strokes for each individual component of each model of component marked on the paper project drawing by the estimator and calculates the cost for all of the components taken off of the paper drawing.
摘要:
An automatic tilt mechanism for attaching a monitor to a movable structure, comprising: a hinge having a first leg means for attachment to a monitor, a second leg means for attachment to the movable structure and a pivot joining the first and second leg means so that they can be moved with respect to each other after attachment; a transfer means adapted to move in proportion to movement of the movable structure; and a connecting means for transmitting movement of the transfer means to the hinge so that the first leg means moves proportionally to movement of the movable structure. The invention may further include a reclinable seat back of a seat in a passenger vehicle as the movable structure. The invention may still further include a fixed length sheathed cable as the connecting means. The invention may also provide an automatic tilt mechanism that is driven by motion of the seat back.
摘要:
A concentrated fruit juice powder obtained by a convection current vacuum freeze drying process that includes: selecting and preparing fruits by predetermined quality guideline; extracting fruit juice by inserting the fruits into a screw press juicing apparatus having a precutter and a screw press whose body surface varies non-linearly, which is configured to achieve a maximum extraction efficiency; adding probiotics into the extracted fruit juice; freezing the fruit juice mixed with the probiotics in molds using an individual quick freezer (IQF) to obtain frozen fruit juice blocks; and vacuum freezing the frozen fruit juice blocks using a convection current vacuum freeze drying apparatus.
摘要:
Methods, devices, apparatus, assemblies, and kits for performing a vascular anastomosis are disclosed. A device for a vascular anastomosis includes tissue engaging portions that can move between at least two configurations. In some embodiments, the tissue engaging portions move without the aid of moving parts, while in other embodiments the tissue engaging portions extend from one or more movable wings. The tissue engaging portions may be separated by a first distance when in a pre-deployment configuration and by a second distance when in a deployed configuration. A method includes engaging a plurality of tissue engaging members of a coupling device against first end tissue. After selectively engaging the tissue engaging members and first end tissue, the first end tissue is stretched by at least moving the tissue engaging members. The stretched first end tissue is coupled to the second end tissue by mating the coupling device to a mating anastomosis device.
摘要:
A gas turbine engine mid turbine frame having an inner case supporting at least one bearing and at least three spokes extending radially outwardly to an outer case, the mid turbine frame having an interturbine duct extending through the mid turbine frame, the interturbine duct spaced axially closer to an upstream turbine disc than a bearing supporting structure of the mid turbine frame and mounted axially slidingly relative to the bearing supporting structure to substantially isolate the bearing supporting structure from axial loads, for example such as disc loads incurred in the unlikely event a turbine disc shaft shears within the engine.
摘要:
A gas turbine engine has a casing component, such as a mid turbine frame system, which includes an outer case surrounding a spoke or strut casing. Load transfer spokes of the spoke casing are detachably connected to the outer case and radially extend between the outer case and an inner case of the spoke casing. A bearing housing is supported by the inner case of the spoke casing. An arrangement for radially centring the bearing within the outer case is provided, the arrangement including at least three radial locators mounted to the outer case.