9359 results about "Shortest distance" patented technology

In many processes used in fabricating semiconductors the wafer is seated on the top surface of a pedestal and heated in a high energy process step, such as plasma etching. The pedestal, chuck or platen may be cooling but the wafer gradually heats until the process can no longer continue. Where large, e.g. 300 mm diameter, wafers are being processed the temperature level across the wafer is difficult to maintain substantially constant. In this system and method the lateral temperature distribution is equalized by a heat sink structure in a chamber immediately under the wafer support on top of the pedestal. A number of spatially distributed wicking posts extend downwardly from a layer of wicking material across the top of the chamber, into a pool of a vaporizable liquid. At hot spots, vaporized liquid is generated and transported to adjacent condensation posts extending up from the liquid. The system thus passively extracts heat to equalize temperatures while recirculating liquid and assuring adequate supply. The free volume above and within the liquid, and the short distances between posts, assure adequate heat transfer rates.

The invention relates to an improved mixing arrangement for, primarily, moving bitumen in steam from sources of such bitumen and steam to a reactor or coker for further processing of the bitumen into petroleum products. The invention provides a main conduit connected to an atomizing nozzle mounted in a wall of the reactor and first and second conduits for flowing bitumen and steam respectively into the main conduit. The first conduit is angled relative to the main conduit at an acute angle of about 45° and the second conduit is angled relative to the main conduit at an acute angle of about 30°. The second conduit is positioned upstream of the first conduit by a short distance of about 23 mm and may be angled radially relative to the first conduit by any angle, although a 90° angle is preferred. A flow accelerating nozzle is located in the second conduit adjacent the entrance therefrom into the main conduit The arrangement of the invention improves the flow characteristics of 2-phase material flowing to the atomizing nozzle, reducing pulsations in the main conduit and improving the resulting atomization of the bitumen in the reactor.

An approach to abstracting the circuit switched nature of the public switched telephone network (PSTN) by using VoIP to provide voice actuated services is disclosed. By carrying a telephone call using VoIP technology for a short distance (frequently within a server room) significant benefits to call handling and capacity management can be obtained. Specifically, a PSTN-to-IP gateway is used to receive (and place) calls over the PSTN and route those calls internally to servers over an IP network in a packet switched format. A number of computer systems can receive and handle the calls in the IP format, including: translating the packets into an audio format suitable for speech recognition and creating suitable packets from computer sound files for transmission back over the PSTN.

A polarization-maintaining optical fiber includes a core region and a cladding region formed around the core region. The cladding region has a refractive index lower than a refractive index of the core region. A refractive index profile of the core region is either one of a step shaped or a concave shaped. The cladding region includes two holes formed in such a manner that a shortest distance from the core region is virtually zero at locations in opposite to each other across the core region.

A rapid exchange sheath comprising an elongate tubular member, a guidewire, and support wire having an expandable filter at a distal end. The guidewire passes through a first opening at a distal end of the tubular member and a second opening a short distance proximal from the distal end. The support wire is received in a lumen of the tubular member, or, in certain embodiments, extends proximally through a third opening a short distance proximal from the distal end. Methods of using the sheaths for deploying and / or exchanging medical device(s) in a patient's vessel are also disclosed.

Methods and systems are disclosed herein for managing content, including advertising content, delivered to various network-connected devices, including screens, mobile devices, computers, televisions, radios, and the like, based on usage profiles associated with device-specific identifiers for mobile devices, short-distance wireless technologies for transmission of content and detection of proximity, and content targeting and management techniques.

The invention relates to an improved mixing arrangement for, primarily, moving bitumen in steam from sources of such bitumen and steam to a reactor or coker for further processing of the bitumen into petroleum products. The invention provides a main conduit connected to an atomizing nozzle mounted in a wall of the reactor and first and second conduits for flowing bitumen and steam respectively into the main conduit. The first conduit is angled relative to the main conduit at an acute angle of about 45° and the second conduit is angled relative to the main conduit at an acute angle of about 30°. The second conduit is positioned downstream of the first conduit by a short distance of about 23 mm and may be angled radially relative to the first conduit by any angle, although a 90° angle is preferred. A flow accelerating nozzle is located in the second conduit adjacent the entrance therefrom into the main conduit. The arrangement of the invention improves the flow characteristics of 2-phase material flowing to the atomizing nozzle, reducing pulsations in the main conduit and improving the resulting atomization of the bitumen in the reactor.

Routing table update messages that include both network-level and link-level addresses of nodes of a computer network are exchanged among the nodes of the computer network. Further, a routing table maintained by a first one of the nodes of the computer network may be updated in response to receiving one or more of the update messages. The routing table is preferably updated by selecting a next node to a destination node of the computer network only if every intermediate node in a path from the next node to the destination node satisfies a set of nodal conditions required by the first node for its path to the destination node and the next node offers the shortest distance to the destination node and to every intermediate node along the path from the next node to the destination node. The shortest distance to the destination node may be determined according to one or more link-state and / or node-state metrics regarding communication links and nodes along the path to the destination node. Also, the nodal characteristics of the nodes of the computer system may be exchanged between neighbor nodes, prior to updating the routing table. Preferred paths to one or more destination nodes may be computed according to these nodal characteristics, for example using a Dijkstra shortest-path algorithm.

A cell phone peripheral device comprises a communication unit, for short-distance wireless communicating between said cell phone peripheral device and the cell phone; a processing unit, for receiving information from said communication unit, processing the information to obtain and analyze data information; a display unit, for receiving and displaying said data information. A method for a cell phone perpheral device communicating with a cell phone comprises receiving information from the cell phone by way of short-distance wireless communication; processing the information to obtain and analyze data information; and displaying, by the cell phone peripheral device, the data information. And a communication terminal comprises: a first communication unit for communicating with a cellular network, a processing unit, and a first input / output unit, and further comprising: a second communication unit, for transmitting voice and data information between the processing unit and the first input / output unit by way of short distance wireless communication.

It is sought to provide an indicator lamp, which is excellent not only in short distance visual recognition property but also in long distance one, as well as being further excellent in sight field angle property.An indicator lamp includes a light-emitting element 1 and a light-emitting element lens 2 having a light-emitting element mounting cavity 3 formed at the bottom, in which the light-emitting element disposed in the cavity 3 emits light to be fully reflected by the peripheral surface of the lens 1 and proceeds as emission light flux forwardly of the lens 1. The slope angle of the peripheral surface with respect to the lens axis is reduced progressively from the bottom toward the lens front surface 5 in three stages, thus forming circumferential corners 7 and 8 as boundaries between adjacent ones of the three stages. The circumferential corners scatter light emitted from the light emitting element 2 to provide concentric emission light fluxes as viewed from the side of the lens front.