摘要:
A composition is prepared by oxidative copolymerization of specific amounts of 2,6-dimethylphenol, 2,3,6-trimethylphenol, and a hydroxyaryl-terminated polysiloxane. The composition exhibits an increased heat resistance relative to a corresponding composition prepared by copolymerizing 2,6-dimethylphenol and hydroxyaryl-terminated polysiloxane, without 2,3,6-trimethylphenol. The composition is useful as a flame-retardant additive in polymer compositions that require high heat resistance.
摘要:
A prosthetic heart valve includes a base and a plurality of polymeric leaflets. Each leaflet has a root portion coupled to the base, and each leaflet has an edge portion substantially opposite the root portion and movable relative to the root portion to coapt with a respective edge portion of at least one of the other leaflets of the plurality of leaflets. Each leaflet includes) at least two polymers along at least one portion of the leaflet, and each leaflet has a composition gradient of each of the at least two polymers along at least one portion of the leaflet.
摘要:
A sign structure having a display, movable member and computer means creates a unique vehicle for displaying content. In one version, the movable member is adjacent to the display and substantially shields a portion of the display as it traverses thereover. Coordinated content transmitted to the display gives the appearance that the movable member is influencing the displayed content. For example, as the member moves upward an image below the member stretches in size while an image above the member compresses in size until the upper image disappears and the lower image occupies the entire visible portion of the display. This continues as the member traverses up and down over the display. The member may appear to manipulate the images by stretching, compressing, pushing, pulling and/or erasing them.
摘要:
A theatrical objects automated motion control system, program product, and method provide, in various implementation, provide techniques for large scale motion and device control. Non-hierarchical art theatrical object movement techniques are provided, wherein combinations of multiple devices on a network include devices functioning as would a single machine. Full-function scalability is provided from one to many machines, wherein neither processor nor device boundaries exist but rather each device has to option of exchanging its operational data with that any other device at any time, in real time. Techniques are provided for coordinating the moving of objects, such as is part of a theatrical performance on a stage in performance venues, and wherein examples of these objects include theatrical props, cameras, stunt persons (e.g., “wirework”), lighting, scenery, drapery and other equipment.
摘要:
A control system is provided for a group of winches in a system. Each motorized winch in the system can have a control board that can process and generate control commands for operation of the winch. The control board can receive inputs from an automation control system and/or the other control boards to be used in the generation of the control commands for the winch.
摘要:
An engagement article is provided that is capable of selectively restricting movement or securing a suspended load in response to a rapid change in tension in one or more lines.
摘要:
A method of simulating an optical effect, and/or characteristic of a selected ophthalmic lens design for a wearer is disclosed. In an embodiment, the method includes retrieving simulation data for the selected ophthalmic lens design and processing the simulation data to generate output image data for an output image simulating the optical effect and/or characteristic of the selected ophthalmic lens design. The output image is displayed, using a head-mounted display worn by the wearer, for viewing by the wearer.A system for simulating an optical effect, and/or characteristic of a selected ophthalmic lens design for a wearer is also disclosed.
摘要:
A crosslinked poly(arylene ether) is described, along with a method for its formation and an article including it. The crosslinked poly(arylene ether) is prepared by a method that includes forming a grafted poly(arylene ether) and reacting the grafted poly(arylene ether) with water to form a crosslinked poly(arylene ether). The grafted poly(arylene ether) is formed by reacting an uncrosslinked poly(arylene ether) with a crosslinking agent having the structure wherein R1 is hydrogen or methyl; R2 is C1-C8 hydrocarbyl; R3 is C1-C4 alkyl or C2-C6 alkoxyalkyl; n is 0, 1, or 2; x is 0 or 1; and Y is selected from —R5—, —O—R5—, —C(O)—R5—, —C(O)—X—R5—, and —X—C(O)—R5— wherein R5 is C1-C12 hydrocarbylene, and X is O, S, or NR6, wherein R6 is hydrogen or C1 -C12 hydrocarbyl.
摘要:
An improved electronic lock system is provided for use with real estate lock boxes. Each user has an identification card with a non-volatile secure memory for exchanging data with the lock box, and for exchanging data with a central computer. The user first inserts the card into a connector at the lock box, or at the central computer. The lock box or central computer must first enable (or unlock) the data in the card memory, and then can read the data stored in that card's memory and record this information in lock box memory. The card must then identify itself, and the user must identify himself/herself to the lock box or central computer. After the identification information is authenticated, the user can enter commands to the lock box; e.g., an access code is manually keyed into the lock box keypad by the user to obtain access to a secure compartment.
摘要:
A communication device is provided for use with a handheld computer. The communication device includes an electrical connector and a coupling mechanism. The coupling mechanism is configured to direct a housing portion of the handheld computer towards the electrical connector so as to create an active contact between the electrical connector and a connector of the handheld computer. Alternatively, the coupling mechanism is configured to resist separation of the handheld computer from the communication device so as to maintain an electrical contact between connectors of the handheld computer and the communication device.