2454 results about "Transfer efficiency" patented technology

The present invention provides a new family of ultrasonically powered medical devices and systems for powering such devices. Disclosed are methods for improving the overall power transfer efficiency of devices according to the present invention, as well as a wide variety of medical uses for such devices and systems. Devices of the present invention comprise a transducer that, during operation, converts electrical energy into high frequency, low amplitude mechanical vibrations that are transmitted to a driven-member, such as a wheel, that produces macroscopic rotary or linear output mechanical motions. Such motions may be further converted and modified by mechanical means to produce desirable output force and speed characteristics that are transmitted to at least one end-effector that performs useful mechanical work on soft tissue, bone, teeth and the like. Power systems of the present invention comprise one or more such handheld devices electrically connected to a power generator. Examples of powered medical tools enabled by the present invention include, but are not limited to, linear or circular staplers or cutters, biopsy instruments, suturing instruments, medical and dental drills, tissue compactors, tissue and bone debriders, clip appliers, grippers, extractors, and various types of orthopedic instruments. Devices of the present invention may be partly or wholly reusable, partly or wholly disposable, and may operate in forward or reverse directions, as well as combinations of the foregoing. The devices and systems of the present invention provide a safe, effective, and economically viable alternative source for mechanical energy, which is superior to AC or DC (battery) powered motors, compressed air or compressed gas, and hand powered systems.

An inductive power supply system in which the receiving unit includes a secondary coil and a plurality of resonating circuits with different characteristics. Each of the resonating circuits may include a resonating coil and a resonating capacitor. The resonating coils may be inductively coupled to the secondary coil so that energy may be transferred from one or more of the resonating coils to said receiving unit. The plurality of resonating circuits are configured to provide improved power transfer efficiency or performance at different distances between the primary coil and secondary coil. The present invention may also provide a method for tuning the wireless power system including the general steps of measuring an operating characteristic in the primary unit, measuring an operating characteristic in the receiver unit and tuning one or more of the components in the primary unit and the secondary unit based on a comparison of the two measurements.

[OBJECT] To guarantee a data transfer rate irrespective of a performance of a memory card. [SOLVING MEANS]A parameter to show a data transfer efficiency is previously recorded in a recording medium 101 in which data is written per data size that can be increased and decreased stepwise and the data transfer efficiency is variable in accordance with the data size. Next, a data accessing apparatus 105 issues a parameter acquisition command to the recording medium 101. The recording medium 101 which received the parameter acquisition command transmits the parameter. The data accessing apparatus 105 collates the received parameter with the data transfer efficiency required in the data to be written / read to thereby select an optimum data size. Then, the data accessing apparatus 105 writes / reads the data to the recording medium 101 based on the selected optimum data size.

An inductive wireless power system using an array of coils with the ability to dynamically select which coils are energized. The coil array can determine the position of and provide power to one or more portable electronic devices positioned on the charging surface. The coils in the array may be connected with series resonant capacitors so that regardless of the number of coils selected, the resonance point is generally maintained. The coil array can provide spatial freedom, decrease power delivered to parasitic loads, and increase power transfer efficiency to the portable electronic devices.

The invention discloses a device and technique for producing cyclohexane by benzene hydrogenation. The device for producing cyclohexane by benzene hydrogenation comprises a reactor, a superfine bubble generator and a bubble breaker, wherein the reactor is provided with a first containing cavity; the wall of the first containing cavity is provided with a feed port, a circulation discharge port, a circulation return port and a gas phase outlet; the superfine bubble generator is provided with a second containing cavity; the wall of the second containing cavity is provided with a return port and a gas phase outlet; the return port of the superfine bubble generator communicates with the circulation return port of the reactor; the bubble breaker is arranged in the second containing cavity; the bubble breaker is provided with a gas phase inlet and a liquid phase inlet which communicates with the circulation discharge port of the reactor; and the gas phase inlet of the bubble breaker communicates with the gas phase outlet of the reactor. The device disclosed by the embodiment of the invention has the advantages of high mass transfer efficiency, high reaction rate, short reaction time, low material consumption and energy consumption, simple structure, low manufacturing cost and low maintenance cost.

The invention discloses a reactor for catalytically oxidizing wastewater through ozone and an application method thereof. The reactor comprises a reaction chamber, a water inlet, a water outlet, a gasoutlet and a circulating water outlet, wherein a separation plate in the reaction chamber is used for separating the lower part of the reaction chamber into a jet flow reaction chamber and a tower type reaction chamber; the jet flow reaction chamber is internally provided with a first catalysis bed layer and an ejector; the circulating water outlet is connected with a working fluid inlet of the ejector; the gas outlet is connected with a sucked liquid inlet of the ejector through a gas circulating pipe; the water inlet is arranged at the bottom of the jet flow reaction chamber; the tower typereaction chamber is internally provided with a tower plate and a second catalysis bed layer; the water outlet is arranged at the bottom of the tower type reaction chamber; a gas inlet is communicatedwith the lower side of the tower plate and the gas circulating pipe; the gas circulating pipe is connected with a tail gas outlet. The reactor has the advantages of high mass transfer efficiency, rapid reaction speed, high ozone utilization rate, high COD (Chemical Oxygen Demand) removal rate and the like.

Described herein are improved configurations for a lighting system with wireless power transfer that includes a source high-Q magnetic resonator coupled to a power source and generating an oscillating magnetic field, at least one device high-Q magnetic resonator configured to convert said oscillating magnetic field to electrical energy used to power a light coupled to the at least one device resonator, and at least one repeater resonator, larger than the device resonator, wherein the repeater resonator is positioned further from the source resonator than the device resonator and improves the power transfer efficiency between the source resonator and the device resonator.

A system and method for variable power transfer in an inductive charging or power system. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field. A receiver comprises a means for receiving the energy from the alternating magnetic field from the pad and transferring it to a mobile device, battery, or other device. In accordance with various embodiments, additional features can be incorporated into the system to provide greater power transfer efficiency, and to allow the system to be easily modified for applications that have different power requirements. These include variations in the material used to manufacture the primary and / or the receiver coils; modified circuit designs to be used on the primary and / or receiver side; and additional circuits and components that perform specialized tasks, such as mobile device or battery identification, and automatic voltage or power-setting for different devices or batteries.

Methods and apparatus are provided for performing authentication and decryption operations in a cryptography accelerator system. Input data passed to a cryptography accelerator from a host such a CPU includes information for a cryptography accelerator to determine where to write the processed data. In one example, processed data is formatted as packet payloads in a network buffer. Checksum information is precalculated and an offset for a header is maintained.

An exemplary inductive power transfer system having a transmitter coil and a receiver coil. A transmitter-side power converter having a mains rectifier stage powering a transmitter-side dc-bus and controlling a transmitter-side dc-bus voltage U1,dc. A transmitter-side inverter stage with a switching frequency fsw supplies the transmitter coil with an alternating current. A receiver-side power converter having a receiver-side rectifier stage that rectifies a voltage induced in the receiver coil and powering a receiver-side dc-bus and a receiver-side charging converter controlling a receiver-side dc-bus voltage U2,dc. Power controllers that determine from a power transfer efficiency of the power transfer, reference values U1,dc*, U2,dc* for the transmitter and receiver side dc-bus voltages. An inverter stage switching controller controls the switching frequency fsw to reduce losses in the transmitter-side inverter stage.

An inductive power supply that maintains resonance and adjusts duty cycle based on feedback from a secondary circuit. A controller, driver circuit and switching circuit cooperate to generate an AC signal at a selected operating frequency and duty cycle. The AC signal is applied to the tank circuit to create an inductive field for powering the secondary. The secondary communicates feedback about the received power back to the primary controller. The power transfer efficiency may be optimized by maintaining the operating frequency substantially at resonance, and the amount of power transferred may be controlled by adjusting the duty cycle.

A multiprocessor system executes parallel threads. A controller receives memory requests from the parallel threads and coalesces the memory requests to improve memory transfer efficiency.

Systems and methods are described for increasing data transfer efficiency between networks. The invention being particularly well suited when establishing connectivity between wireless networks, such as based on IEEE 802 standards, and traditionally wired network protocols (often referred to as internet protocols), such as TCP / IP and UDP. The invention provides formatting of network packets and then processing of network packets according to one or more optimization processes. One optimization process comprises performing partial packet retransmissions to increase network efficiency, especially in high bit error rate networks such as wireless networks. Another optimization process comprises suppressing unnecessary packet acknowledgements, therein reducing burst traffic and saving substantial overhead in lossy networks. Additional aspects of the invention provide further benefits. The invention may be implemented within the MAC layer of a network interface, in particular within wireless network interfaces which are being increasingly utilized for both home and office short range interconnectivity.

A cooling system and method are provided which include a facility cooling unit, a cooling tower, and one or more thermal capacitor units. The facility cooling unit, which includes a heat dissipation coolant loop, facilitates thermal energy extraction from a facility, such as a data center, for expelling of the energy to coolant within the heat dissipation coolant loop. The cooling tower is in fluid communication with the coolant loop, and includes a liquid-to-air heat exchanger for expelling thermal energy from coolant of the heat dissipation coolant loop to the surrounding environment. The thermal capacitor unit is in fluid communication with the heat dissipation coolant loop to facilitate efficient thermal energy transfer from coolant with in the coolant loop to the surrounding environment with variation in ambient temperature about the cooling tower.

A two-dimensional (2D) chemical shift correlated MR spectroscopic (COSY) sequence integrated into a new volume localization technique (90°-180°-90°) for whole body MR Spectroscopy. Using the product operator formalism, a theoretical calculation of the volume localization as well as the coherence transfer efficiencies in 2D MRS is presented. A combination of different MRI transmit / receive rf coils is used. The cross peak intensities excited by the proposed 2D sequence are asymmetric with respect to the diagonal peaks. Localized COSY spectra of cerebral frontal and occipital gray / white matter regions in fifteen healthy controls are presented.

In a WPT system, varying parameters, such as coupling coefficient, may cause the system to fall out of resonance and / or tuning. By monitoring one or more signals within a coil module of the WPT device, this detuning can be detected. Moreover, the WPT system can retune itself by modifying one or more parameters in a transmitting WPT device and / or a receiving WPT device. For example, coil circuits in the transmitting and / or receiving WPT devices can be configured to allow for adjusting of effective capacitance, effective inductance, load resistance, and / or load inductance. In addition, frequency can be modified to permit adjusting power transfer efficiency.

A system and a method to provide alignment between a source resonator and a capture resonator. The system and method may be used to align a vehicle having a capture resonator to the source resonator of a wireless inductive battery charging system for an electric vehicle. The system includes a display device, a sensor to determine a location of the source resonator relative to the capture resonator, and a controller in communication with the source resonator, the capture resonator, the sensor, and the display device. The controller is programmed to determine a relative distance and a relative direction between the source resonator and the capture resonator, determine a transfer efficiency of electrical power between the source resonator and the capture resonator. The display device is configured to indicate the relative distance and the relative direction between the source resonator and the capture resonator and indicate the transfer efficiency.

The invention discloses a method for removing hydrogen sulfide in a gas phase through oxidization under a high gravity field, which comprises the steps of: enabling a desulfurizing agent to be in a countercurrent or cross current contact with a hydrogen sulfide containing gas in a desulfurizing high gravity machine; and then adding the desulfurizing agent rich in sulphur in a sulphur sedimentation agent and then enabling the desulfurizing agent added with the sulphur sedimentation agent to be in a countercurrent or cross current contact with air in a regeneration high gravity machine, whereinthe desulfurizing agent is a mixed solution consisting of complex iron, aqueous alkali, a sulphur modifying agent and a defoaming agent, and in the mixed solution, the concentration of iron ions is 0.1-10g / L, pH is 8.0-9.2, the concentration of the sulphur modifying agent is 10-200ppm, and the concentration of the defoaming agent is 5-50ppm. The high gravity machine is used for replacing the traditional low-transfer-efficiency reactor, and a high gravity rotary packed bed reactor is adopted during hydrogen sulfide oxidization and catalyst regeneration, thus process transfer efficiency is greatly strengthened, and time of oxidization desulfurization and regeneration of a desulfurizing agent is shortened; in addition, the sedimentation agent is adopted in a sulphur sedimentation stage and acts together with the sulphr modifying agent, thus the sulphur sedimentation time is also greatly shortened.

The invention discloses a rapid transaction alliance chain construction method compatible with multiple asset types. The alliance chain technology is introduced to realize transaction intercommunication of multiple types of digit assets, based on that system safety is guaranteed, a fixed multi-party signature consensus mechanism is introduced to replace workload to prove the dynamic multi-party signature mechanism, and the transaction time is substantially shortened. The method is advantaged in that through breaking transaction barriers among the different asset types, wide compatibility of the transaction system with the various asset types is realized, moreover, a fixed signature set scheme is employed, the consensus achievement time of each node in the system can be substantially reduced, transaction is rapidly achieved, asset transfer efficiency is substantially improved, superior robustness for a Byzantine failure problem is realized, and cracking is difficult.

The present invention relates to a color image forming device for forming toner images of a plurality of colors on a medium, and is for improving second transfer efficiency from an intermediate transfer body to the medium. The device has image forming units (12-1 to 12-4) for forming the toner images of the plurality of colors on at least one image bearing body (14-1 to 14-4) by a plurality of developing units (22-1 to 22-4) respectively accommodating toner of different colors; an intermediate transfer body (24); primary transfer means (38-1 to 38-4) for primary transferring the toner images of the plurality of colors onto the intermediate transfer body sequentially for the respective colors; and secondary transfer means (45) for secondary transferring the toner images of the plurality of colors on the intermediate transfer body onto the medium. The image forming units form the toner images of the plurality of colors so that the potentials of toner layers transferred onto the intermediate transfer body (24) are progressively lower in the order in which the plurality of colors are transferred. Since the potential of the toner layer directly adhered to the intermediate transfer body is higher, the directly adhered toner layer becomes easier to be secondary-transferred, and thereby, the secondary transfer efficiency is improved and the reproducibility of the secondary color is improved.

An orthogonal memory for transforming arrangements of system bus data and processing data is placed between a system bus interface and a memory cell mat storing the processing data. The orthogonal memory includes two-port memory cells, and changes data train transferred in a bit parallel and word serial fashion into a data train of word parallel and bit serial data. Data transfer efficiency in a signal processing device performing parallel operational processing can be increased without impairing parallelism of the processing.

The invention provides a descriptor-based PCIE bus DMA controller and a data transmission control method, includes TLP sending engine, TLP receiving engine, interface access control module, DMA transfer control module, descriptor access control module, multi-DMA channel control module, control status register and DMA channel buffer. The DMA transfer process of the DMA controller designed by the invention is completely controlled by a descriptor, and the data bandwidth and the transfer efficiency are improved. DMA data transmission can configure multiple DMA channel, and that priority of each DMA channel, the transmission triggering threshold and the timeout time are programmable, so that the data transmission can be carry out according to the high and low priority, and the real-time data transmission of the specific channel can be guaranteed; The upload / download data buffers of all DMA channels can be dynamically managed to achieve multi-channel DMA multiplexing and ensure the efficiency of DMA transfer bandwidth.

It is provided a power supply device and a power acquisition device for an electromagnetic induction-powered electric vehicle that increase a power transfer efficiency by maximizing a lateral deviation tolerance and by minimizing a gap between the power acquisition device and the power supply device while preventing the power acquisition device from colliding with an obstacle present on a road and being damaged by the collision.

A strain-inducing semiconductor alloy may be formed on the basis of cavities which may have a non-rectangular shape, which may be maintained even during corresponding high temperature treatments by providing an appropriate protection layer, such as a silicon dioxide material. Consequently, a lateral offset of the strain-inducing semiconductor material may be reduced, while nevertheless providing a sufficient thickness of corresponding offset spacers during the cavity etch process, thereby preserving gate electrode integrity. For instance, P-channel transistors may have a silicon / germanium alloy with a hexagonal shape, thereby significantly enhancing the overall strain transfer efficiency.

An inductive wireless power system using an array of coils with the ability to dynamically select which coils are energized. The coil array can determine the position of and provide power to one or more portable electronic devices positioned on the charging surface. The coils in the array may be connected with series resonant capacitors so that regardless of the number of coils selected, the resonance point is generally maintained. The coil array can provide spatial freedom, decrease power delivered to parasitic loads, and increase power transfer efficiency to the portable electronic devices.

Disclosed are a three-phase wireless power transfer (WPT) system and three-phase wireless rechargeable unmanned aerial vehicle (UAV) system based on the same. Three power receiving coils, including resonators, are installed at the ends of three landing leg of the UAV. A three-phase power converter installed in the UAV receives the three-phase AC induction current induced in three power receiving coils, including resonators, converting the three-phase AC induction current into a DC current to be charged in a battery. A three-phase power wireless charging apparatus wirelessly transfers three-phase power from three power transmitting coils to the three power receiving coils of the UAV when the three landing legs land on three coil seating units provided on a charging platform. A magnetic flux leakage shielding coil may be provided to prevent magnetic flux leakage from approaching the UAV. The power transfer efficiency is excellent, and electromagnetic interference can be also reduced.

A contactless power supply system contactlessly supplies electric power from a power transmitting device to a vehicle. The vehicle includes a power receiving unit contactlessly receiving electric power from the power transmitting device, an electrical storage device storing electric power received by the power receiving unit, and a vehicle ECU. The power transmitting device includes a power supply unit, a power transmitting unit contactlessly supplying electric power, supplied from the power supply unit, to the power receiving unit and a matching transformer used to adjust an impedance between the power supply unit and the power transmitting unit. The vehicle ECU is able to output, to the power transmitting device, a command to adjust the matching transformer, and sets an impedance of the matching transformer on the basis of a power transfer efficiency between the power transmitting unit and the power receiving unit while the electrical storage device is being charged.