摘要:
Disclosed herein are examples and variations of solar energy collector systems comprising an elevated linear receiver extending generally in an east-west direction, a polar reflector field located on the polar side of the receiver, and an equatorial reflector field located on the equatorial side of the receiver. Each reflector field comprises reflectors positioned in parallel rows which extend generally in the east-west direction. The reflectors in each field are arranged and positioned to reflect incident solar radiation to the receiver during diurnal east-west processing of the sun and pivotally driven to maintain reflection of the incident solar radiation to the receiver during cyclic diurnal north-south processing of the sun. Inter-row spacings of the reflectors on opposite sides of the receiver may be asymmetrical.
摘要:
A thermal energy storage system in which at least one vertically extending cavity is formed within ground constituted by geologically stable consolidated rock, and at least one cylindrical steel vessel having a diametral dimension smaller than its longitudinal dimension is positioned within the cavity and surrounded peripherally by a containment material. Conduits are provided for directing pressurised water in vapour and/or liquid phase into the vessel and for conveying steam from an upper region of the vessel. The vessel has a peripheral wall acting as a liner for the containment material and internal pressure-induced forces are transferred from the vessel to the containment material via the peripheral wall. The containment material in one embodiment of the invention includes the surrounding rock. In a further embodiment the containment material includes a filler material and the internal pressure induced forces are transferred from the vessel to the surrounding rock via the filler material.
摘要:
The invention pertains to the use of six-membered cyclic phosphates as plant growth regulators and methods for regulating the growth of plants using such compounds.
摘要:
A solenoid control valve is described wherein the valve employs a precision molded plastic valve seat member, a corresponding control valve body which includes flying buttresses for supporting and distributing loads on the control valve body, and armature vent features.
摘要:
According to an embodiment of the present invention, an apparatus for addressing compatibility in a session protocol environment is provided that includes a communications platform operable to communicate with a first endpoint and a second endpoint and to recognize signaling capabilities of the first and second endpoints. The apparatus also includes a media termination point (MTP) operable to communicate with the endpoints and the communications platform, the media termination point being provisioned by the communications platform in a stream that involves the first and second endpoints if a signaling compatibility issue is present amongst the endpoints. If an out-of-band digit from the first endpoint is received by the communications platform, the out-of-band digit is sent to the MTP, which is operable to inject a digit associated with the second protocol into the communication session such that a mapping occurs between the digits for the first and second protocols.
摘要:
A method for providing communication protocol interoperability may include receiving a request from a first endpoint to establish a communication session with a second endpoint, the request uses a first communication protocol. The method also includes receiving a first response from the second endpoint, the first response uses a second communication protocol different than the first communication protocol. The method may also include initiating a timer for receiving a set of capabilities from the second endpoint and establishing the communication session between the first endpoint and the second endpoint.
摘要:
A method of making a capacitive micromachined ultrasound transducer cell is provided. The method includes providing a carrier substrate, where the carrier substrate comprises glass. The step of providing the glass substrate may include forming vias in the glass substrate. Further, the method includes providing a membrane such that at least one of the carrier substrate, or the membrane comprises support posts, where the support posts are configured to define a cavity depth. The method further includes bonding the membrane to the carrier substrate by using the support posts, where the carrier substrate, the membrane and the support posts define an acoustic cavity.
摘要:
The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.
摘要:
A cooler comprising a container having a container bottom wall and upstanding side walls standing upwardly from a periphery of the bottom wall and defining an open top and a cover wall hingedly connected to one of the side walls and attachable to at least one other of the side walls so as to close the open top. Each of the side walls and the cover wall being formed of a flexible fabric material with a layer of insulating material thereon such that the side walls can be folded to allow collapse of the container from an expanded position for receiving articles to be maintained cooled to a collapsed storage condition. A bottle for receiving liquid has two opposed side walls and a peripheral wall with one side wall shaped to substantially match the shape of the bottom wall such that the bottle is arranged to be located at the bottom of the container with the side wall lying against the bottom wall to provide stiffening for the bottom wall and the other side wall facing into the interior of the container. The bottle has a bottle neck extending through the peripheral wall through which the liquid can be poured into and discharged from the bottle and a closure cap covering the bottle neck. The bottle neck and the closure cap being arranged so as to be accessible at one side wall of the container for discharge of the liquid.