155results about How to "Reduce the balance" patented technology

A variable speed wind turbine employing a rotor connected to a multiplicity of synchronous generators with wound field or permanent magnet rotors. A passive rectifier and an inverter are used for power transfer back to the grid. A Turbine Control Unit (TCU) commands a required generator torque based on rotor speed and power output of the turbine inverters. Torque is controlled by regulating the DC current by control of the inverter. A main-shaft-damping filter is provided by measurement of the DC bus voltage. In high winds the turbine remains at a constant average output power through a constant torque command and a varying pitch command to a rotor pitch servo system. A set point is fixed at the inverter output such that output VAR load is minimized running the turbine at very nearly unity power factor. Dynamic VAR and power factor control is provided by a separate VAR apparatus.

A variable speed wind turbine employing a rotor connected to a multiplicity of synchronous generators with wound field or permanent magnet rotors. A passive rectifier and an inverter are used for power transfer back to the grid. A Turbine Control Unit (TCU) commands a required generator torque based on rotor speed and power output of the turbine inverters. Torque is controlled by regulating the DC current by control of the inverter. A main-shaft-damping filter is provided by measurement of the DC bus voltage. In high winds the turbine remains at a constant average output power through a constant torque command and a varying pitch command to a rotor pitch servo system. A set point is fixed at the inverter output such that output VAR load is minimized running the turbine at very nearly unity power factor. Dynamic VAR and power factor control is provided by a separate VAR apparatus.

A stimulator for stimulating the leg or other parts of the body e.g. the leg in a patient with drop foot is provided, the stimulator being controlled by e.g a foot switch but being reliable in use and therefore commanding acceptance by users. The foot switch has to work in adverse environmental conditions and is subject to repeated use so that its characteristics vary with time. The invention provides a functional electrical stimulator for attachment to the leg that has adaptive characteristics and comprises first and second electrodes for attachment to the leg to apply an electrical stimulus, a foot switch for sensing foot rise or foot strike, a circuit responsive to said foot switch for generating stimulation pulses; and means forming part of said circuit for responding to changes in the resistance characteristics of said switch means by adjusting a corresponding response threshold of said circuit.The invention also provides a two-channel stimulator that offers various possibilities for controlling the signals to be supplied to different muscle groups. For example, means may be provided defining a signal pathway between the first and second channels so that the supply of stimulation pulses in one of said first and second channels can be controlled by the state of switch means associated with the other of said first and second channels. In a further embodiment means defining a signal pathway between the first and second channels is arranged so that the supply of stimulation pulses in one of said first and second channels can be controlled by the state of activity of the other of said first and second channels. In a yet further embodiment the first channel has means arranged to cause the stimulation pulses to time-out after a predetermined period and the second channel having no or disabled timing means so that supply of stimulation pulses is continuous in a predetermined state of limb position responsive switch means associated with that channel. The two-channel stimulator can be used e.g., to treat bilateral dropped foot.

A method and system for tracking and providing an audit trail for off-line smart card transactions includes storing information representing a monetary transaction in a permanent memo on an smart card microprocessor and holding the transaction amount in escrow until the stored information is transmitted from the smart card, for example, at an on-line terminal, to a host on-line system for logging to a tracking system. The monetary transaction includes a transaction with an off-line device, such as another smart card. The escrowed transaction amount represents, for example, a load transaction to one of the smart cards and an unload transaction to other smart card. Once the memo is deleted from the respective smart cards, the load values of the respective smart cards are incremented or decremented by the transaction amount. Alternatively, the smart cards may be provided with a card-to-card key, in which case, a permanent memo is stored only on the receiving smart card.

A feedback device for measuring balance related information, and for producing a stimulation of the skin that encodes that information in a way that is useful to the wearer of the device. At least one sensor detects balance information and transmits at least one balance information signal to a signal processing subsystem. The signal processing subsystem converts the received balance information signal into at least one stimulation control signal. The signal processing subsystem then transmits the stimulation control signal to at least one stimulator, which provides stimulation to a wearer of the device reflecting the stimulation control signal received from the signal processing subsystem.

The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.

Aging, injury and / or other pathologies of joints, especially weight bearing joints, contribute to changes in natural biomechanics. Deviations from optimal biomechanics lead to acceleration of the natural history of joint pathology and ultimately osteoarthritis. A Magnetic Vector Control System made up of an assembly of magnetic field sources can be disposed at or near a joint typically on or in adjacent bones of the joint, on one side of a first mechanical axis that creates a torque or moment about a second different axis of the joint, that intersects the first mechanical axis, to decrease the joint reactive force at the joint surface or equivalently substantially shift the first mechanical axis to a new or preferred position.

The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.

A method and device for realizing graph processing based on the MapReduce architecture is disclosed in the invention. The method includes the steps of: receiving an input file of a graph processing job; predicating a MapReduce task execution time distribution of the graph processing job using an obtained MapReduce task degree-execution time relationship distribution and a degree distribution of the graph processing job; and dividing the input file of the graph processing job into input data splits of MapReduce tasks according to the predicted MapReduce task execution time distribution of the graph processing job.

An inter-gaming operator (IGO) server and method is described. The IGO server receives gaming and non-gaming transactions from gaming operator systems, comprising gaming platforms and merchants associated with each gaming operator system. Each gaming operator system issues its own casino crypto currency (C3) for use in gaming and non-gaming transactions. For each transaction that is processed by the IGO, the IGO debits and credits user accounts in accordance with the particular C3 involved in each transaction. Each transaction is further maintained by generating one or more crypto-blocks, each crypto-block comprising a cryptographically-encoded version of all or a portion of the information in each transaction received by the IGO server. Because the IGO server is coupled to multiple gaming operator systems, the IGO server may be used to detect illicit wagering activities that heretofore could not be detected.

A feedback device for measuring balance related information, and for producing a stimulation of the skin that encodes that information in a way that is useful to the wearer of the device. At least one sensor detects balance information and transmits at least one balance information signal to a signal processing subsystem. The signal processing subsystem converts the received balance information signal into at least one stimulation control signal. The signal processing subsystem then transmits the stimulation control signal to at least one stimulator, which provides stimulation to a wearer of the device reflecting the stimulation control signal received from the signal processing subsystem.

A gasket includes a fist sealing portion, a second sealing portion, and an elastic arm sealingly connecting between the two. The first sealing portion sealingly engages a first member and the second sealing portion sealingly engages a second member. The elastic arm is not highly compressed between the members, allowing the gasket to vibrationally decouple the first member from the second member.

The invention relates to a tundish flow control device for a slab casting machine, a preparation method of the tundish flow control device and a slagging method using the tundish flow control device, and belongs to the technical field of the ferrous metallurgy slab casting tundish technology. The tundish flow control device for the slab casting machine comprises a turbulence controller, a slag blockage weir and a slag blockage dam, and is characterized in that the upper edge of the slag blockage weir (5) is higher than the highest liquid level (10) of molten steel normally poured by the tundish, but is lower than the working face of tundish overflow port coating (1); the slag blockage weir (5) and the slag blockage dam (6) are vertically staggered; two ends of the slag blockage dam (6) are respectively provided with a through hole; a center distance a between the slag blockage weir (5) and the turbulence controller (4) is 400-600mm; and a center distance b between the slag blockage weir (5) and the slag blockage dam (6) is 300-400mm. After the tundish flow control device for the slab casting machine is adopted, slab tundish injection residue can be reduced by more than 25%, the service life of the flow control device is improved by one time and is above 14 hours, and the production cost of continuous casting refractory material is lowered by more than 30%.

Apparatus and a method are described for prospecting for water ice on heavenly bodies with the apparatus consisting of site preparation tools and a water ice detector unit. The apparatus is attached at the end of any robotic arm equipped lander or rover spacecraft; for instance, lander designs such as Mars Phoenix or rover designs such as Mars Spirit and Opportunity. Supported on an internal, moveable carriage, the apparatus is also incorporated into smaller, dedicated water ice detection rover spacecraft. The water ice detection unit inserts electrodes into or against a potential water ice deposit and confirms the presence of water ice by making combination impedance and thermal conductivity measurements.

An image processing apparatus enhances contrast without producing color balance distortion or color collapse by generating a gradation-scale correction table from a distribution of a characteristic quantity of an input image signal, using the gradation-scale correction table to derive a gradation correction parameter for each pixel from a maximum component value of the pixel, and multiplying all components of the pixel by the gradation correction parameter.

The present invention provides compositions and methods for improving stool quality of a puppy by adjusting the balance of metabolizable cations to metabolizable anions consumed by the puppy.

Determining server capabilities during a discrete time period, or interval, allows for more efficient processing of client requests. Updating a proportional server capability load balancing information encoding at intervals allows a load balancer to handle client requests without the overhead of determining current server capabilities. Decision-making can be reduced to quick selection of one of a group of servers without considering the server's capability, since the server's capability has previously been considered when collecting the load balancing information.

Executing a FOTA (firmware over the air) method in a LoRa network having low throughput and low power. the transceivers used in the end nodes and in the LoRa gateway are capable of selecting a certain frequency channel and deactivating the LoRa mode. If the spread-spectrum LoRa mode is deactivated, both transceivers at the end node and the gateway function instead using a basic FSK (frequency-shift keying) modulation scheme. This modulation scheme is capable of providing a higher data rate at the expense of reducing the “path balance,” which indicates how much attenuation the transmitted signal may sustain while still being able to be decoded at the receiver. When using the FSK modulation scheme at a high data rate, a FOTA method may be easily carried out, since the end node must have its receiver activated only for a short time.

Systems and methods for providing connectivity to a wireless network may include a point of sale device at a merchant location that is used to receive an account identifier that in turn is associated with a stored value account of a customer. The account identifier is transmitted along with transaction data to a financial network to permit the stored value account to be processed according to the transaction request. When needing to receive wireless access, a customer using a personal communications device transmits a request to obtain wireless access while he is at the merchant location. An evaluation is performed to confirm that the customer has performed a transaction involving the stored value account within a certain time period. Wireless access to the wireless network is provided if the customer has performed the transaction within the certain time period.

A method of providing network access includes entering network access information into a merchant device at a merchant location. The information relates to a request from a customer to obtain network access. The method also includes causing the information to be transmitted to a host computer system from the merchant device, receiving a payment from the customer, receiving activation confirmation from the host computer system at the merchant device, and providing a presentation instrument to the customer. The presentation instrument may be used by the customer to obtain network access. The method further includes using the presentation instrument to settle a transaction with the customer for merchandise.

A gaming machine is disclosed that provides a game in which a player of the gaming machine stakes a wager on one or more outcomes of the game that are represented as symbols arranged in an array of symbol display positions. The player controls the number of outcomes on which a wager is staked by operating a user interface. During play of the game the gaming machine causes a display to display indicia representative of the total number of outcomes selected but not display indicia representative of every available outcome and not display indicia of every selected outcome. Indicia representative of an individual outcome is displayed when that outcome defines a winning combination. A method of providing a graphical user interface for a gaming machine is also disclosed.

A golf club which helps master a proper swing path is provided. A golf club includes a hollow shaft; a club head at a tip portion of the shaft; a grip at a base end portion of the shaft; and a balance-shifting unit which increases a swing balance of the golf club. The balance-shifting unit includes a partitioning portion which divides an inside space of the shaft into a first portion on the base end portion side and a second portion on the tip portion side; and a balancing material. The partitioning portion includes a first shifter portion which allows the balancing material held in the first portion to move to the second portion side in association with a swing; and a second shifter portion which allows the balancing material on the second portion side to return to the first portion. The golf club further includes a balance holder.

The invention relates to a flow control device for a tundish of a slab continuous caster and manufacturing method thereof. The flow control device comprises a turbulent flow controller, a slag weir and a slag dam, wherein the upper edge of the slag weir is higher than the normally poured liquid steel highest liquid surface of the tundish but lower than the working surface of overflow port coating materials of the tundish, the slag weir and the slag dam are arranged in vertically staggered mode, and a through hole is respectively arranged at two ends of the slag dam. The centre distance a between the slag weir and the turbulent flow controller is 400-600mm, the centre distance b between the slag dam and the slag weir is 300-400mm, and the distance y between the working surface of overflow port coating materials of the tundish and the edge of the tundish is 120-160mm. The turbulent flow controller is of a structure made of combined composite materials, and the slag weir and the slag dam is respectively formed by molded pouring materials through casting molding in the intermediate temperate sintering process. By aid of the flow control device, injection residues of the tundish of slabs are reduced by more than 25% on year-on-year basis, service life of the flow control device is prolonged by one time on year-on-year basis, and continuous casting refractory material production cost is reduced by more than 30% on year-on-year basis.

There is provided a technique of preventing occurrence of a shift in white balance even when the ratio of a dark area is greater than the ratio of a bright area as in the case of a night view. A white balance gain calculator calculates white balance gains for an image from color of pixels whose luminance levels are at equal to or greater than a reference luminance level among all pixels of an image. When the ratio of dark pixels whose luminance satisfies a predetermined condition, among all pixels of the image, is equal to or greater than a reference ratio, a correction coefficient calculating section determines a correction coefficient from at least one of factors; namely, image-capturing sensitivity corresponding to an image, the ratio of dark pixels, and firing / non-firing of flash light; and instructs the white balance gain calculator to make a correction to the white balance gain in accordance with the correction coefficient.

A split axle assembly for obtaining gage measurements of a track including a first wheel with a first split axle, a second wheel with a second split axle, a first bearing for rotatably receiving the first split axle, and a second bearing for rotatably receiving the second split axle, the first bearing and the second bearing being positioned inboard between the first wheel and the second wheel. In one embodiment, a sliding barrel device is provided. In another embodiment, the first bearing is received in a first bearing body and the second bearing is received in a second bearing body so that they are axially movable relative to one another. At least one linear guide is provided to allow axial movement of the first bearing body and the second bearing body relative to one another.

The present invention discloses a method and system for clock tree planning for an ASIC, the method comprising: determining a netlist and a timing constraint file of the ASIC; creating a sequential device undirected graph for sequential devices in the netlist according to connection relationships of the sequential devices in the netlist and timing constraint relationships of the sequential devices in the timing constraint file; grouping the sequential devices in the netlist according to the sequential device undirected graph, such that the sequential devices in one group do not have a timing constraint relationship with the sequential devices in another group. The ASIC design method improved by using this method will reduce the design cycle from weeks to days, and enable designer to quickly plan the clock tree, thus reducing the design time and improving the design efficiency.

A balancing machine with a clamping device for mounting a vehicle wheel on a balancing machine shaft. The clamping device has a mounting flange (7) with multiple recesses (13) for receiving at least one centering pin (8). To reduce centering errors and / or balancing errors because of play between the centering pin (8) and the mounting flange (7), e.g., due to manufacturing tolerances or wear, the centering pin has an elastically deformable circumference (21) which in its operating position is in contact with a wall surface (25) of the mounting flange (7) bounding the recess (13). The circumference (21) can be either hydraulically or mechanically deformable. In addition, the invention also relates to a balancing machine having a mounting flange (7) having a central opening for axial guidance on a shaft. To equalize any play between the mounting flange (7) and the shaft, the opening is bounded by an elastically deformable wall area which in the operating position of the mounting flange is in contact with the shaft.