Abstract: The invention discloses a life-saving device around a pond, comprising a base, wherein a pillar is fixed on the top surface of the base, a ceiling is fixed on the top surface of the pillar, and a cavity is provided in the ceiling. A recovery shaft is rotatably provided in the cavity, and two sets of ropes are wound around the periphery of the recovery shaft. A hanging plate is fixed on the right side of the column, and a life ring is mounted on the hanging plate. The life ring It can be tied with the rope so that when the life buoy is thrown into the water, it can be rotated by the recovery shaft to pull the life buoy back. The present invention can inflate the life buoy and oxygen mask through the rotation of the inflatable shaft. Accelerating the inflation efficiency, eliminating the need to replace the oxygen mask and life buoy back and forth, saving rescue time, meanwhile, rescuers and rescued people can be quickly pulled back to the shore by a rope at the same time, saving rescue time and energy.

Abstract: An end plate unit for use in a fuel cell stack in an electric vehicle is provided wherein the end plate includes an outer surface, an inner surface disposed opposite the outer surface and a current collector. The inner surface defines at least a first region and a second region which is spaced apart from and substantially parallel to the first region. The current collector may be affixed to the inner surface.

Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.

Abstract: A conjugated polymer comprises repeating units as represented by formula (I), ?A—B?p ??(I) p is the number of the repeating units, and p is an integer more than or equal to 1; and A has a structure as represented by formula (II), and B has a structure as represented by formula (II) or formula (III). The described conjugated polymer has a higher triplet energy level and a higher charge transfer property.

Abstract: A device in an adaptive channel access system may include a processor that is configured initiate access of a channel, and perform a first jammer detection on the channel. The processor is configured to, when a jamming device is detected on the channel, access the channel with a channel occupancy time set to a first duration of time. The processor is configured to, when no jamming devices are detected: access the channel with the channel occupancy time set to the second duration of time that is greater than the first duration, while accessing the channel with the channel occupancy time set to the second duration of time, perform a second jammer detection on the channel, and when the jamming device is detected, cease to access the channel prior to the expiration of the second duration of time, otherwise continue to access the channel without re-initiating access of the channel.

Abstract: A conjugated polymer, comprising repeat units represented by formula (I), wherein p represents the number of the repeated units and is an integer greater than or equal to 1; D1 has a structure represented by formula (II); and B1 has a structure represented by formula (III); The described conjugated polymer has higher triplet energy level and high charge transporting performance.

Abstract: A user equipment including an antenna arrangement comprising at least three antennas configured for use with a wireless connection is described. The user equipment performs a method including, for each antenna of the at least three antennas, determining a performance metric associated with a data exchange over the wireless connection, ranking each antenna of the at least three antennas based at least in part on the performance metric and selecting, when a data exchange error is detected, one of a first ranked antenna or a second ranked antenna of the at least three antennas for a next data exchange.

Abstract: A method of manufacturing a fuel cell stack includes compressing a stack of bipolar plates with a variable applied load a feature non-deformed displacement distance, which is measured from an initial height of the stack of bipolar plates. A first applied load at a first displacement distance and a second applied load at a second displacement distance are sensed. The first displacement distance and the second displacement distance are each less than the feature non-deformed displacement distance. A best fit curve, passing through the first applied load at the first displacement distance and the second applied load at the second displacement distance, is then determined. A final displacement distance, measured from the initial height, is calculated from the best fit curve for a target applied load. The stack of bipolar plates is then compressed to the final displacement distance measured from the initial height.

Abstract: An apparatus and method for cooling a component for a turbine engine which generates a hot gas flow and provides a cooling fluid flow, the component comprising a body having an outer surface, at least a portion of which is exposed to the hot gas flow to define a hot surface, a cooling cavity located within the body and fluidly coupled to the cooling fluid flow and a pin located within the cooling cavity and defining a cooling hole.

Abstract: A non-combustible mixed refrigerant having a low greenhouse effect and an application thereof, the mixed refrigerant comprises the following components in mass fractions: 4-31.5% of R125, 50-80% of R1234ze (E) and 12-22% of R1234yf. Under the cooperation of each component dosage range, the mixed refrigerant becomes non-combustible, the ODP is 0, and the GWP is not greater than 1000. The present invention may be used in a refrigeration system, does not destruct ozone, reduces the greenhouse effect, and has a low slip temperature, relating to ternary azeotropic or near-azeotropic refrigerants, and being beneficial for the stable operation of a refrigeration system. The mixed refrigerant may also be used as a foaming agent or an aerosol propellant, and has the advantages of being non-combustible, having a low ozone destruction index, and being environmentally friendly, safe and reliable.

Abstract: Provided are a mixed refrigerant that is non-flammable and capable of reducing the greenhouse effect, and the use thereof. The mixed refrigerant comprises the following components in mass fractions: 10%-30% of R134a, 5%-70% of R1234ze(E), and 18%-65% of R1234yf. The mixed refrigerant of the present invention, in fitting combination with the amount ranges of all the components, makes the refrigerant non-flammable, and the ODP thereof is 0, and the GWP thereof is no greater than 400. The mixed refrigerant can be used in a refrigeration system, has no ozone destructive power, reduces the greenhouse effect, has a lower temperature glide, and belongs to ternary azeotropic or nearly azeotropic refrigerants, which is beneficial to the stable operation of a refrigeration system.

Abstract: A method for implementing a residential gateway service function, and a server are disclosed. The method may include: receiving, by a server, a data packet forwarded by a residential gateway (RGW) or a network side; identifying, by the server, a service type of the data packet according to information carried in the data packet; and providing, by the server, based on the service type of the data packet, a virtual residential gateway service for a user terminal connected to the RGW.

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.

Abstract: A fuel cell flow field plate providing a uniform gas flow pressure includes a first metal plate and a second metal plate. The first metal plate defines a first opening for providing a first reactant gas to a fuel cell with a first metal bead that surrounds the first opening. The first metal bead is an embossment that defines a first channel. A first plurality of tunnels provides a passage into and out of the first metal bead. Each tunnel of the first plurality of tunnels has an inlet tunnel section that leads to the first metal bead and an outlet tunnel section that extends from the first metal bead to provide the first reactant gas to first reactant gas flow channels defined by the first metal plate. Characteristically, the inlet tunnel section and the outlet tunnel section each having a curved cross section with an opened base side.

Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.

Abstract: A plate includes a working face and a header portion. The working face defines a plurality of reactant channels thereon. The header portion is disposed in a peripheral area of the plate and includes a plurality of flanges and a plurality of beads. The flanges are disposed on the header portion and define a plurality of apertures through the plate. Each flange defines a respective one of the apertures. At least one of the apertures is fluidly connected to the reactant channels. The plurality of beads is disposed on the working face. Each bead is disposed about a respective one of the apertures and thereby defines a respective one of the flanges. Each bead defines a shape consisting of bead-corners and bead-sides. Each bead has a sealing surface thereon. The sealing surface is configured to deflect when exposed to a contact pressure to thereby provide a substantially fluid-tight seal.

Abstract: A disposable core die is provided. The disposable core die includes a first portion defining an inlet configured to receive a slurry therethrough, a second portion integrally formed downstream from the first portion and configured to receive the slurry from the first portion, and a third portion integrally formed downstream from the second portion. The second portion includes a plurality of hollow tubes that are substantially coaxially aligned and have a wall thickness within a range defined between about 0.1 mm and about 0.5 mm, and the third portion defines an outlet configured to discharge excess slurry from the second portion.

Abstract: A plate assembly includes a first plate having a planar portion and a first bead seal formed therein. The first bead seal includes a first end surface spaced away from the planar portion. The first bead seal includes first and second opposing sides extending away from the first end surface and contiguous with the planar portion. The first bead seal includes a first reinforcement structure having a first plurality of walls each intersecting the first opposing side of the first bead seal. The first plate includes a second bead seal formed therein. The first bead seal and the second bead seal may be joined via the first reinforcement structure such that the first plurality of walls of the first reinforcement structure each intersect a third opposing side of the second bead seal.

Abstract: A number of variations may include a product that may include a fuel cell stack assembly that may include at least one bipolar plate including at least one first raised bead which may include a first split corner which may include a first connection.

Abstract: Methods for designing one or a pair of half plates of a fuel cell include providing a first half plate defining a first half plate metal bead, wherein the first half plate metal bead protrudes from the first half plate forming a convex side, providing a second half plate defining a second plate metal bead, wherein the second half plate metal bead protrudes from the second half plate forming a convex side, determining a pressure profile between the convex sides of the first half plate metal bead and the second half plate metal bead in a compressed state, and adjusting a height of the first half plate metal bead and/or the second half plate metal bead in one or more locations to increase the uniformity of the pressure profile. Increasing the uniformity of the pressure profile can include reducing a range of the plurality of pressure measurements.