182results about How to "Good efficiency" patented technology

A sub-band antenna matching method and an antenna matching system for selectively matching a communication bandwidth segment impedance have been provided. The method comprises: accepting a frequency-dependent impedance from an antenna; and, selectively supplying a conjugate impedance match for the antenna at a sub-band of a first communication band. In some aspects, the method selectively supplies a conjugate impedance match for the antenna at a sub-band of a second communication band. More specifically, the method comprises: tuning a first tuning circuit to a first frequency; simultaneously tuning a second tuning circuit to a second frequency to match the antenna at a low end of the first communication band. Likewise, the first tuning circuit is tuned to a third frequency and the second tuning circuit is tuned to a fourth frequency to match the antenna at a high end of the first communication band in response to the third and fourth frequencies.

A system and method for determining a similarity between a document and a query includes building a weight vector for each of a plurality of documents in a corpus of documents stored in memory and building a weight vector for a query input into a document retrieval system. A weight matrix is generated which distinguishes between relevant documents and lower ranked documents by comparing document / query tuples using a gradient step approach. A similarity score is determined between weight vectors of the query and documents in a corpus by determining a product of a document weight vector, a query weight vector and the weight matrix.

The lifetime of aerosol monitoring, concentration and collection equipment is extended by acoustic cleaning of accreted particle deposits from internal surfaces where fouling occurs by application of acoustic energy to the particle accretion surface, optionally in combination with a liquid wash or sampling volume. In one application, acoustic cleaning or sampling of particle deposits for analysis is triggered by a signal indicating changes in gas flow associated with particle loading. In another application, electro-acoustic transducers may be used to prevent particle buildup without interruption of particle monitoring.

A method of steering a watercraft propulsion device mounted to a transom plate and having a steering drive unit which allows the watercraft propulsion device to rotationally move about a swivel shaft. The method can include calculating a steering parameter for the steering drive unit in accordance with the degree of operator's steering wheel displacement, and operating the steering drive unit based on the calculated control physical quantity, in which the control physical quantity can be selected from a plurality of preset control physical quantities.

In a motor driver, based on driving waveforms of respective phases generated by a driving waveform generator, a power feeder feeds respective phase-coils with an alternating current consecutively changing in sine wave. Further, a phase advancing controller adjusts phases of the driving waveform, and performs phase-advancing control such that each phase of back electromotive forces induced in respective phase-coils generally coincides with a phase of the ac running through the coils. In phase-advancing controlling, a phase current is detected with a common current. The structure discussed above can reduce torque ripples, vibrations and noises, and a motor thus can be driven efficiently.

A system is disclosed for which a network device with two or more ports determines which of its functions should be performed on which of its ports. A method is disclosed for monitoring the traffic on each port for characteristic traffic that indicates the function that said network device should perform on said port, optionally transmitting new traffic or altering or tagging existing traffic to elicit it, and mapping said network device's operations to its ports accordingly. Also disclosed is a system and method for auto inhibition and auto configuration.

A textile drying machine comprises a tank for receiving textiles with a spindle inside the tank for supporting the textiles, and a solid-state radio frequency generator. The generator is connected to the spindle and the tank is earthed so that when the generator is operated an oscillating electric field is generated between the spindle and the tank, and hence applied to textiles on the spindle. The electric field heats water molecules in the textiles by molecular vibration so that evaporation occurs, and the water vapor is removed from the tank by an extractor fan. The machine may also be used to dye the textiles prior to drying, thus providing an integrated dyeing / drying machine.

An organic electroluminescence device comprising a cathode, an anode and an organic thin film layer which is sandwiched between the cathode and the anode and comprises at least one layer containing a light emitting layer comprising a phosphorescent light emitting compound is provided. The device comprises an electron injecting layer which is adhered to the cathode and comprises at least one compound selected from metal chelate complexes with a ring having nitrogen atom, five-membered cyclic derivatives having nitrogen atom, non-condensed six-membered cyclic derivatives having nitrogen atom and condensed six-membered cyclic derivatives having nitrogen atom and one condensed carbon ring as the main component and at least one compound selected from alkali metals, alkali metal complexes, alkali metal compounds, alkaline earth metals, alkaline earth metal complexes, alkaline earth metal compounds, rare earth metals, rare earth metal complexes and rare earth metal compounds as the reductive dopant. The device uses phosphorescent light emission, exhibits a great efficiency of light emission and has a long life.

A furnace heat exchanger with multiple parallel flow passages wherein the last flow passage extends downwardly from its plane as it approaches the outlet so as to result in a lower overall height of the heat exchanger. Preferably both the upper wall and the lower wall of the last passage extend downwardly such that the cross-sectional area of the last flow passage is not reduced and is preferably increased as it approaches the outlet. The bottom wall extension is preferably curvilinear and has substantially the same curvature as a return bend at the inlet of the penultimate flow passage.

A method for transmitting video information is shown, in which at least a first bit-stream (510) and a second bit-stream are formed. The first bit-stream (510) includes a video frame, and the second bit-stream (520) includes a predictive video frame (524). Different encoding parameters are used with encoding of the frames of the first bit-stream (510) and the second bit-stream (520). A frame of the first bit-stream (510) is transmitted, and the transmission is switched over from the first (510) to the second bit-stream (520) during which a secondary switching frame (550) is transmitted encoded using the encoding parameters of the second bit-stream (520) and at least one reference frame from the first bit-stream (510). The secondary switching frame (550) is used as a reference frame in the reconstruction of the predictive video frame (524) of the second set of video frames.

The present invention provides a manufacturing method for a sealed battery includes: a process whereby a sealed battery application electrode assembly 11 is formed that has multiple positive electrode substrate exposed portions 14 at one end and multiple negative electrode substrate exposed portions 15 at the other end; a process whereby the negative electrode collector 181 and negative electrode collector receiving part 183 are brought against both surfaces of the part to be welded on at least the negative electrode substrate exposed portions 15, with tape 23a constituted of thermo deposited resin and having an opening 231 in the center being interposed; and a process whereby resistance welding is effected by passing current between the negative electrode collector 181 and negative electrode collector receiving part 183 positioned at the two sides.

The sliced data structure used for a particle-based simulation using a CPU or GPU is a data structure for a calculation space. The space is a three-dimensional calculation space constructed from numerous voxels; a plurality of slices perpendicular to the Y axis is formed; numerous voxels are divided by a plurality of two-dimensional slices; the respective starting coordinates of the maximum and minimum voxels are calculated for a range of voxels in which particles are present in each of a plurality of two-dimensional slices; the voxel range is determined as a bounding box surrounded by a rectangular shape; and memory is provided for the voxels contained in the bounding boxes of each of the plurality of two-dimensional slices.

A method for operating a dust collection device by reducing the adhesion of high-resistance dust while performing stable charging, with minimal pressure loss and high efficiency. The dust collection device comprises a pre-charging unit and a bag filter in a flue gas duct through which a gas flows, with the pre-charging unit disposed upstream from the bag filter, wherein the pre-charging unit comprises electrodes that charge the dust, a power source that supplies electric power to the electrodes, and a gas flow rate control device that adjusts the flow rate of the gas flowing through the pre-charging unit to a prescribed value. The method comprises a step of charging the dust by applying a voltage from the electrodes to the dust, and a step of removing the dust adhered to the electrodes by increasing the flow rate of the gas flowing through the pre-charging unit.

The invention relates to an ultraviolet laser drilling device. The output end of an ultraviolet Q-switched solid laser is provided with a beam expander; the output end of the beam expander is sequentially provided with a first reflecting mirror and a second reflecting mirror; the output end of the second reflecting mirror is provided with a beam shaping device; the output end of the beam shaping device is provided with a scanning galvanometer; the output end of the scanning galvanometer is connected with a focus lens; a three-dimension moving platform is arranged below the focus lens; light beams emitted from the ultraviolet Q-switched solid laser enter the beam expander; the beam expander outputs collimated light beams; the collimated light beams enter the beam shaping device through the first reflecting mirror and the second reflecting mirror; the shaped light beams enter the focus lens through the scanning galvanometer; focusing light spots, of which the energy is in a flat top distribution, are obtained at a focus position; the focus of the focused light beams is positioned on a processing workpiece of the three-dimensional moving platform. During the action of ultraviolet laser and materials, molecules are stripped off by breaking chemical bonds of the materials, a heat affected area is greatly reduced, and a good effect of processing edges is achieved.

It is described a logging tool 20 for underground formations surrounding a borehole 14, comprising an elongated body 21 along a major axis; a collar 22 disposed peripherally around said body 21 having a collar wall defined by an inner and an outer surface; a radiation emitting source 201 arranged to illuminate the earth formation 16 surrounding the borehole; at least one radiation detector 211 arranged to detect radiation reflected by the earth formation resulting from illumination by the source 201; at least one source collimation—window 202 and one detector collimation window 212 through which the earth formation is illuminated and radiation is detected; and characterized in that it further comprises at least one radiation shield 30 located between said inner collar surface and the outer surface of the tool, said radiation shield positioned so as to eliminate parasitic radiation that has not traversed the outer collar.

PCT No. PCT / IB97 / 00155 Sec. 371 Date Nov. 2, 1998 Sec. 102(e) Date Nov. 2, 1998 PCT Filed Feb. 25, 1997 PCT Pub. No. WO97 / 32681 PCT Pub. Date Sep. 12, 1997The invention concerns a method of cutting blocks of hard materials into plates by the action of an abrasive, which is added in the loose state, and of a continuous, revolving, fixed carrier. As a result of being guided in peripheral grooves in coaxial rollers of a roller system, the carrier forms a chain through which the material to be cut is pressed. The carrier, which runs in the peripheral grooves in the rollers of a roller system comprising at least one pair of deflection rollers and at least one pair of guide rollers, is pressed into the material to be cut such that it is guided in opposite directions in respectively two adjacent cuts in the block.

A system and method for digitally providing impedance mismatch compensation for a communications medium in a communications device. A method comprises producing a power amplifier (PA) output signal, providing the PA output signal to a digitally-controlled transmission line (DCTL), transforming a first load impedance to a second load impedance producing a DCTL output, and coupling the DCTL output to an antenna. The PA having the first load impedance and the transforming is controlled by a digital control word provided to the DCTL.

A boost type power supply circuit for providing a DC output voltage comprising first and second semiconductor switches coupled between respective input lines and a common connection; an AC input voltage from an AC source being supplied across the input lines; first and second diodes coupled in series with respective ones of the switches; third and fourth diodes coupled across respective ones of the switches in a free-wheeling relationship with the switches; an inductance coupled in at least one of the input lines; a controller for controlling the conduction times of the switches by providing a pulse width control signal to each of the switches; wherein the controller turns on at least one of the switches during a positive half cycle of the AC voltage to allow energy storage in the inductance and turns off the at least one switch to allow the energy stored in the inductance to be supplied to an attached load through one of the first and second diodes and one of the third or fourth diodes; and the controller turns on at least one of the switches during a negative half cycle of the AC voltage to allow energy storage in the inductance and turns off at least one switch to allow the energy stored in the inductance to be supplied to the attached load through one of the first and second diodes and one of the third and fourth diodes. The controller determines an on-time and an off-time of a pulse of the pulse width modulated control signal during each half cycle of the AC voltage, the on-time and off-time of the pulse being controlled to regulate said output voltage and to provide power factor correction of said AC input voltage, based on either voltage sensing or current sensing.

Disclosed is a transparent electrode which is configured of a first conductive layer that is composed of a metal or metal oxide fine wire that is formed in a pattern on a substrate; and a second conductive layer that covers the first conductive layer and contains a conductive polymer. The transparent electrode is characterized in that the fine wire of the first conductive layer satisfies the conditions mentioned below. Also disclosed is an organic electronic element Line width (W): 20-200 μm Height (H): 0.2-2.0 μm Aspect ratio: 0.001<H / W≦0.1 Coefficient of cross-sectional shape: 0.6<S / (W·H)<0.9 (In this connection, S represents the cross-sectional area of the conductive layer.)

This invention pertains to methods for cloning microRNA (miRNA) and other small ribonucleic acid (RNA) species from relevant cell sources.

In a DC-DC converter circuit having a plurality of input terminals connected to a plurality of DC power supplies, and an output terminal, the DC-DC converter circuit includes a power supply selection section for selecting a DC power supply of lowest voltage on the condition that the voltage is not less than a predetermined voltage, and a step-down type of regulator section for converting the voltage of the DC power supply selected by the power supply selection section into a predetermined voltage lower than the voltage of the DC power supply selected by the power supply selection section, and outputting the converted voltage through the output terminal.

The invention provides a natural scene character recognition method for warehouse shelf signboard character recognition. The natural scene character recognition method at least comprises the followingsteps of building a to-be-recognized signboard text detection network, wherein the specific structure of the to-be-identified signboard text detection network is 13 convolutional layers from VGG-16,a full convolutional network with convolutional layers being additional convolutional layers for extracting 10 features, and six text box layers connected to six intermediate convolutional layers; andreserving 13 convolutional layers of the VGG-16, and fully linking and replacing the two full-connection layers formed by the VGG-16 with the two convolutional layers adopting a parameter downsampling principle. According to the natural scene character recognition method for the warehouse shelf signboard character recognition provided by the invention, the natural scene character recognition accuracy, the precision rate and the recall rate in a logistics warehouse environment can be relatively high, and meanwhile, the natural scene character recognition method also has very good efficiency.

The invention discloses an ecological organic fermented fertilizer which comprises the following components in parts by mass: 1,200-1,800 parts of crop waste, 2,500-4,000 parts of composted excrement, 1,600-2,000 parts of river mud, 1,200-1,600 parts of cake meal, 800-1,200 parts of bentonite, 300-600 parts of waste oil residue, 80-200 parts of corn flour, 800-1,200 parts of waste fungus spores and 100-140 parts of microbial fermentation bacterial agent. In the organic fertilizer disclosed by the invention, the damage on the crops and seed germination caused by diseases and pests and the influence on the purity and quality of agricultural products after fertilization are avoided; when in use, foul smell in the field is avoided, the dosage of chemical fertilizer is reduced, the cost is saved, and the soil depletion, hardening and salinization are avoided; after use, the soil fertility is improved, the immunity of agricultural and forestry crops is enhanced, the grain yield increase is realized, and the trends of energy saving, environmental protection and sustainable development are met.

A powertrain for driving a motor vehicle includes an internal combustion engine including first and second rotors supported for rotation about an axis, a first epicyclic gear unit including a first component fixed against rotation, a first driving component, and a first driven component, a first power path alternately producing a first drive connection between the driven component and the first rotor, and opening said first drive connection, and a second power path producing a second drive connection between the driven component and the second rotor, and opening said second drive connection.

The invention relates to technical field of energy and particularly discloses a seedling raising device capable of regulating intensity and angle of received light. The device comprises a supporting frame, a control box, and an upright post, wherein culture box cases for raising seedlings are arranged on the supporting frame; the control box is arranged on the supporting frame, and a horizontal motor which controls the horizontal rotation of the supporting frame, an axial motor which controls the vertical rotation of the supporting frame, two motor drivers which are connected with the horizontal motor and the vertical motor respectively and a controller which is connected with the two motor drivers are arranged in the control box; the control box can be connected with a computer for controlling the rotation rate and pitch swing angle of the supporting frame; and the upright post is arranged below the control box for supporting the supporting frame and the control box. In the device, the top layer is kept under optimal illumination all the time because of the automatic light tracing function of the device; and through the rotation and pitch swing of the device, leaves in different directions and different parts of the same leaf receive the same light, so the optimal photosynthesis is realized.

An electric power output control system for electric vehicle with fuel battery features that a DC / DC converter is used to boost the voltage of fuel battery to proper valuve under low-load state, said fuel battery is also used as on-board charger, besides said fuel battery an external high-power secondary battery is used for supplementing additional energy under high load state, and a controller area network is used as control channel.

A jitter buffer control for controlling a provision of a decoded audio content on the basis of an input audio content is configured to select a frame-based time scaling or a sample-based time scaling in a signal-adaptive manner. An audio decoder uses such a jitter buffer control.

A non-linear dispersive transmission line assembly for producing high power radio frequency electrical signals includes a transmission line (6, 7) having a plurality of series connected inductors (8) each incorporating saturable magnetic material to provide non-linearity, a first array (11) of capacitors interconnecting outermost ends of immediately adjacent pairs of the inductors (8) and a secondary array (14) of capacitors interconnecting outermost ends of immediately adjacent pairs of the inductors, with the second array interconnection points being spaced by one inductor from the first array interconnection points. The assembly also includes means for applying a first magnetic field to the transmission line (6,7) in a direction substantially perspectively to the direction of a second magnetic field produced in the transmission line by the application thereto of a high voltage input pulse which propagates through the transmission line to form an output high power radio frequency electrical signal.

The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention has excellent thermal stability due to a high glass transition temperature. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having excellent current / power efficiency and long lifespan.