Abstract: A system for monitoring a drilling rig condition, the system comprising: a travelling block suspended via a drilling line from a crown block at the top of a mast of the drilling rig; a frame to which the drilling tools and/or a pipe string is mounted; at least one tie rod that connects the frame to the travelling block, wherein the at least one tie rod comprises a tensile sensor; and a control system that receives a signal corresponding to tension sensed by the tensile sensor, wherein the control system determines a drilling rig condition based at least in part on the signal received from the tensile sensor.

Abstract: Embodiments of a locking ring assembly of this disclosure may be used to prevent unwanted rotation of a drill stem sub or tubular when another sub or tubular of the drill stem is subjected to a disconnect or reverse torque force. The locking ring assembly may include an upper and a lower rings having two halves connected on one end by a hinge and on another end by a fastener. Each locking ring half may include convexities located along an inner wall surface. When locking ring is in a closed position the convexities at least partly penetrate an opposing surface of the drill stem sub or tubular, thereby maintaining locking force by shear force rather than friction force. One or more keys may be installed between the upper and lower rings to prevent undesired or excessive torque experienced by one ring being transmitted to the other.

Abstract: The present invention relates to a method for determining at least one gas condition at a location in a combustion chamber of a power plant or a combined heat and power plant by means of a laser pulse. The method comprises emitting (S1) the laser pulse into the chamber, determining (S2) a first point of time at which the laser pulse is emitted into the chamber, detecting (S3) laser light backscattered by gas molecules at the location in the chamber, determining (S4) a second point of time at which the laser light backscattered by the gas molecules is detected, determining (S5) the location based on the first point of time, the second point of time, and a pulse length of the laser pulse, and determining (S5) the at least one gas condition at the location based on at least one characteristic of the backscattered laser light detected at the second point of time. A gas measurement system and a combustion system are also presented herein.

Abstract: A method for reclaiming CO2 absorbing chemical(s) from a lean aqueous CO2 absorbent leaving a regeneration column (8), where lean absorbent (30) is withdrawn and flashed (31) to generate a vapor that is compressed (34) and returned into the regeneration column as stripper gas (37), where a part of the lean absorbent (20) is withdrawn and introduced into a reclaimer (21) in which the lean absorbent is boiled to generate a gas phase (23) that is withdrawn and returned into the regeneration column as reclaimed absorbent, and a liquid phase containing impurities (24), wherein the gaseous phase that is withdrawn from the reclaimer is compressed (34) together with the vapor part (33) from the flashing of the lean absorbent, to generate a pressure in the reclaimer that is lower than the pressure in the regeneration column, and a reboiler (11) for carrying out the method, are described.

Abstract: The present invention relates to a method for determining at least one gas condition at a location in a combustion chamber of a power plant or a combined heat and power plant by means of a laser pulse. The method comprises emitting (S1) the laser pulse into the chamber, determining (S2) a first point of time at which the laser pulse is emitted into the chamber, detecting (S3) laser light backscattered by gas molecules at the location in the chamber, determining (S4) a second point of time at which the laser light backscattered by the gas molecules is detected, determining (S5) the location based on the first point of time, the second point of time, and a pulse length of the laser pulse, and determining (S5) the at least one gas condition at the location based on at least one characteristic of the backscattered laser light detected at the second point of time. A gas measurement system and a combustion system are also presented herein.

Abstract: A process for the treatment of gas phase alkaline chlorides in a combustion plant that is arranged for combustion of solid fuel and which includes a combustion chamber from which a flue-gas flow is directed to pass a heat transfer device. A phosphorous substance is added to the flue-gas flow, separate from the fuel, the substance chosen from a group of substances that form phosphorous oxide at combustion temperatures of approx. 500° C. or above, wherein the phosphorous substance is distributed in the flue-gas at a location upstream of the heat transfer device. The phosphorous substance is added to an amount which results in phosphatising of gas phase alkaline chlorides included in the flue-gas flow before the chlorides reach the heat transfer device. A corresponding combustion plant is disclosed, as well as the use of a phosphorous substance for phosphatising alkaline chloride in gaseous phase in a flue-gas flow.

Abstract: A method for reclaiming CO2 absorbing chemical(s) from a lean aqueous CO2 absorbent leaving a regeneration column (8), where lean absorbent (30) is withdrawn and flashed (31) to generate a vapor that is compressed (34) and returned into the regeneration column as stripper gas (37), where a part of the lean absorbent (20) is withdrawn and introduced into a reclaimer (21) in which the lean absorbent is boiled to generate a gas phase (23) that is withdrawn and returned into the regeneration column as reclaimed absorbent, and a liquid phase containing impurities (24), wherein the gaseous phase that is withdrawn from the reclaimer is compressed (34) together with the vapor part (33) from the flashing of the lean absorbent, to generate a pressure in the reclaimer that is lower than the pressure in the regeneration column, and a reboiler (11) for carrying out the method, are described.

Abstract: A process for the treatment of gas phase alkaline chlorides in a combustion plant that is arranged for combustion of solid fuel and which includes a combustion chamber from which a flue-gas flow is directed to pass a heat transfer device. A phosphorous substance is added to the flue-gas flow, separate from the fuel, the substance chosen from a group of substances that form phosphorous oxide at combustion temperatures of approx. 500° C. or above, wherein the phosphorous substance is distributed in the flue-gas at a location upstream of the heat transfer device. The phosphorous substance is added to an amount which results in phosphatising of gas phase alkaline chlorides included in the flue-gas flow before the chlorides reach the heat transfer device. A corresponding combustion plant is disclosed, as well as the use of a phosphorous substance for phosphatising alkaline chloride in gaseous phase in a flue-gas flow.

Abstract: The invention relates to a method and a device for setting up connections between communication terminals and data and/or communication networks having wireless transmission links, for example, wireless local area networks (WLAN) and/or mobile telephone networks, and a corresponding computer program and a corresponding computer-readable storage medium, which can be used, in particular, to set up a secure access to WLAN networks.

Abstract: The invention relates to a method and a system for access to data and/or communication networks via wireless access points, as well as a corresponding computer program and a corresponding computer-readable storage medium, which can be employed, in particular, to enable roaming with mobile terminals between hotspots in the hotspot network of an individual provider and/or between hotspots of different providers. The invention further provides a central support, service and organization center, which includes billing, authentication and accounting systems (BAA). In this way, users of mobile communication terminals obtain standardized, secure, mobile Internet access when changing WLAN hotspots. Existing hotspots are used for access to the Internet. An operator (provider) of a hotspot gains additional customers. Users registered with the BAA system obtain standardized Internet access. In addition to simple access, other value-added services can also be offered. The services are billed via the BAA system.

Abstract: The present invention is directed to a system and a method for roaming in data and/or communication networks, and to a corresponding computer program and a corresponding computer-readable storage medium, which can be used, in particular, to enable users in rapidly moving vehicles to use the Internet. A system for roaming in data and/or communication networks is proposed for clients moving at a high speed, wherein access points (AP) are arranged along the travel route of the clients for providing wireless access to data and/or communication networks, for example the Internet, wherein at least one AP is connected directly via a communication link with the data and/or communication network, and wherein APs without a direct connection to the data and/or communication network are connected to APs that have a direct connection to the data and/or communication network.

Abstract: The present invention provides a solution to the problem concerning how to associate uplink packet data to the originating mobile station in order to be able to direct downlink packet data transmissions to the correct mobile station when using adaptive antennas. A packet scheduler signals the uplink and downlink scheduling information to a direction of arrival (DOA) estimating- or beam selection algorithm, and specifies a DOA- or beam selection algorithm for every mobile station instead of for every timeslot. The received information, i.e. the angular and/or spatial samples of signal strength and signal quality etc. is stored in a physical context memory. It is possible to use adaptive antennas in a system carrying e.g. GPRS/EGPRS traffic.

Abstract: The present invention relates to methods for performing uplink scheduling of packet data when using adaptive antennas. In the solution according to the invention the uplink scheduling information is transmitted in an antenna beam towards the mobile for which the scheduling information is intended and by allocating mobile stations with similar position to the same packet data channel. All other data packets are transmitted in an antenna beam towards the mobile station for which the data are intended. By adopting the proposed solution it is possible to efficiently use adaptive antennas in a system carrying e.g. GPRS/EGPRS traffic. The carrier to interference gain introduced by adaptive antennas produces a pronounced increase in system performance.

Abstract: In a radio network which employs adaptive antennas for transmission of data to mobiles methods and apparatus are provided for improving the reception of transmitted data. When a block is to be transmitted in a first beam of the antenna and the block contains information for the mobile in the second beam, a modulation and coding scheme is used for the transmission of the block such that the modulation and coding scheme provides greater protection to the portion of the block containing information for the mobile in the second beam. The use of greater protection for the portion of the block which includes information for the mobile in the second beam increases the probability that the mobile in the second beam can receive and correctly decode the information intended for the mobile in the second beam in the block.

Abstract: The present invention relates generally to the problems associated with sectorization of cells in cellular communications systems, and more particularly to interference between sectors. The invention provides the possibility of flexibly distributing hardware between sectors in a cell by allowing one transmitter to be shared by all the sectors. Since a beacon signal must be transmitted to each sector in a cell, it can be combined with the signal from the transmitter before being transmitted from an antenna. Thus it is necessary to only deploy one carrier for the beacon. Interference reduction in sectored sites is also improved. In addition, different antenna patterns may be combined to provide the site with all kinds of coverage patterns. Downlink diversity is furthermore attainable by having overlapping uncorrelated antenna patterns.

Abstract: In a radio network which employs adaptive antennas for transmission of data to mobiles methods and apparatus are provided for improving the reception of transmitted data. When a block is to be transmitted in a first beam of the antenna and the block contains information for the mobile in the second beam, a modulation and coding scheme is used for the transmission of the block such that the modulation and coding scheme provides greater protection to the portion of the block containing information for the mobile in the second beam. The use of greater protection for the portion of the block which includes information for the mobile in the second beam increases the probability that the mobile in the second beam can receive and correctly decode the information intended for the mobile in the second beam in the block.

Abstract: A method is provided for feeding objects (15) from a magazine (11, 14) having a set of objects (12, 15) therein, through a feeder path (4) to a correct "catch position" (6) in which the objects (15) are placed in a predetermined correct alignment. One or more objects (15) at a time are let down through a feeding assembly (14, 16) to a feeder path (4) and are brought to pass a barrier (17) of mechanical or other type which is mounted interiorly of a passageway (4a) of the feeder path (4). The feeder passageway (4a) has a cross sectional shape and a cross sectional size which substantially coincides with the cross sectional shape and cross sectional size of the object. An object (15) having the correct positioning will be let down into the passageway (4a) of the feeder path (4), whereas objects (15), at the inlet of the feeder path (4) including the barrier (17), which have an incorrect positioning, e.g.