370results about How to "Reduce operating power" patented technology

A piezoelectric micromachined ultrasonic transducer comprising a substrate and a first dielectric film formed on the substrate. An opening having a sidewall is formed through the substrate and first dielectric film. A bottom electrode is formed on the first dielectric film spanning the opening. A piezoelectric element is formed on the bottom electrode. A second dielectric film surrounds the piezoelectric element. A conformal insulating film is formed on the sidewall of the opening. A conformal conductive film is formed in contact with the bottom electrode and on the sidewall of the opening, wherein an open cavity is maintained in the opening. A top electrode is formed in contact with the piezoelectric element.

A system for efficiently filtering interfering signals in a front end of a GPS receiver is disclosed. Such interfering signals can emanate from friendly, as well as unfriendly, sources. One embodiment includes a GPS receiver with a space-time adaptive processing (STAP) filter. At least a portion of the interfering signals are removed by applying weights to the inputs. One embodiment adaptively calculates and applies the weights by Fourier Transform convolution and Fourier Transform correlation. The Fourier Transform can be computed via a Fast Fourier Transform (FFT). This approach advantageously reduces computational complexity to practical levels. Another embodiment utilizes redundancy in the covariance matrix to further reduce computational complexity. In another embodiment, an improved FFT and an improved Inverse FFT further reduce computational complexity and improve speed. Advantageously, embodiments can efficiently null a relatively large number of jammers at a relatively low cost and with relatively low operating power.

A piezoelectric micromachined ultrasonic transducer comprising a substrate and a first dielectric film formed on the substrate. An opening having a sidewall is formed through the substrate and first dielectric film. A bottom electrode is formed on the first dielectric film spanning the opening. A piezoelectric element is formed on the bottom electrode. A second dielectric film surrounds the piezoelectric element. A conformal insulating film is formed on the sidewall of the opening. A conformal conductive film is formed in contact with the bottom electrode and on the sidewall of the opening, wherein an open cavity is maintained in the opening. A top electrode is formed in contact with the piezoelectric element.

Provided is a surgical instrument, including: a shaft; a wrist member including a guide member, a wrist body connected to the guide member and formed with a plurality of installation holes, and a plurality of protruding members each disposed to face the wrist body and having an insertion groove, and connected to the shaft; a plurality of effectors each connected to the wrist member by a pin; a support driving unit having first through fourth rotation members inserted into pins that are mounted on the wrist member, respectively, and each first and second wires connected to the plurality of effectors and the first through fourth rotation members, respectively; a main driving unit connected to the support driving unit by wire and having at least one driving unit. The main driving unit enables the entire wrist member to perform a yaw motion by rotating the entire wrist member, and enables the plurality of effectors to perform a pitch motion by simultaneously rotating the plurality of effectors into a single direction, and enables the plurality of effectors to perform a forceps motion of rotating into a direction increasing or decreasing a distance between the plurality of effectors.

A method and apparatus for operation of a hearing aid 205 with signal processing functions performed with an array processor 220. In one embodiment, a reconfiguration module 250 allows reconfiguration of the processors 220 in the field. Another embodiment provides wireless communication by use of earpieces 105, 110 provided with antennas 235 in communication with a user module 260. The method includes steps of converting analog data into digital data 915 filtering out noise 920 and processing the digital data in parallel 925 compensating for the user's hearing deficiencies and convert the digital data back into analog. Another embodiment adds the additional step of reconfiguring the processor in the field 1145. Yet another embodiment adds wireless communication 1040-1065.

An in-line magnetic flow meter has an electrically insulated quasi-annular voltage sensing path defined between an internal wall of a meter body and an outer wall of an axially disposed hollow tube. Although less than 100% of the fluid flow passes through the sensing region, the choice of an inner tube reduces flow impedance introduced by the meter, when compared to other meters providing a quasi-annular sensing path. In addition, by forming two electromagnet coils on a single core and using axially separated pairs of electrodes, the present arrangement allows one to provide two flow meters in the space normally occupied by one.

The invention discloses a projector, comprising a wind scooper, a color wheel, a motor of color wheel, a light pipe and a first air inlet. The color wheel is set in the wind scooper. The motor of color wheel is connected with the color wheel and in the wind scooper. The light pipe is in the wind scooper and corresponds with the color wheel. The first air flow enters into the wind scooper from the first air inlet and passes through the motor of the color wheel and light pipe and flows out the wind scooper.

The invention provides a user comfort-based energy-saving control method in a refrigerating mode of an air conditioner. Through monitoring of indoor and outdoor temperature and based on the temperature difference between indoor temperature and set temperature of an energy-saving control mode, the method can control the operation frequency of an inverter compressor, the opening degree of an electronic expansion valve and the wind speed of indoor and outdoor fans more accurately, so that the operation power of a whole air conditioner can be reduced as much as possible on the premise that the user comfort is guaranteed.

The invention discloses a method for controlling power. The method includes the steps: acquiring all time intervals meeting preset conditions in each monitoring period within a specified time range; setting the same system time range as an inactive time range when the probability of the time intervals meeting the preset conditions in the same system time range with each monitoring period exceeds a preset threshold value; and transmitting indication information for reducing the power to each power consumption device in a terminal when the system time of the terminal reaches the inactive time range and the terminal interacts with a user to reduce the operating power of each power consumption device in the terminal. The specified time range includes a plurality of monitoring periods, and the time intervals are duration without interaction of the terminal and the user. The inactive time range is a defaulted time range without interaction of the terminal and the user. The operating power of each power consumption device in the terminal can be reduced, and power consumption of the terminal is saved.

The invention discloses a novel natural cooling resource refrigerating system and a control method thereof. The system comprises a condenser, a liquid accumulator, a freezing medium circulating pump, an electronic expansion valve, an evaporator and a refrigeration compressor. The evaporator, the compressor, the condenser, the liquid accumulator, the freezing medium circulating pump and the electronic expansion valve are connected in sequence to form a circulation loop, wherein the evaporator and the condenser are connected through a first by-pass pipeline, and the liquid accumulator and the electronic expansion valve are connected through a second by-pass pipeline; the refrigeration compressor, the condenser, the liquid accumulator, the electronic expansion valve and the evaporator form an air cooling water chilling unit refrigeration cycle system, and the condenser, the liquid accumulator, the freezing medium circulating pump and the evaporator form a natural cooling resource refrigeration cycle system. Compared with the prior art, a freezing medium is used as a circulating medium, so the novel natural cooling resource refrigerating system has the advantages of an ethylene glycol scheme and a pure water scheme, and no special antifreeze process is needed, the cost can be reduced and the heat exchange efficiency and the convenience of maintenance are improved.

An object of the present invention is to improve the performance of a semiconductor device having a CMISFET. Each of an n channel MISFET and a p channel MISFET which form the CMISFET includes a gate insulating film composed of a silicon oxynitride film and a gate electrode including a silicon film positioned on the gate insulating film. Metal elements such as Hf are introduced near the interface between the gate electrode and the gate insulating film with a surface density of 1×1013 to 5×1014 atoms / cm2. The impurity concentration of channel regions of the n channel MISFET and the p channel MISFET is controlled to be equal to or lower than 1.2×1018 / cm3.

Low power carbon nanotube memory is realized such that a first dynamic circuit serves as a local sense amp for reading a memory cell through a lightly loaded local bit line, a second dynamic circuit serves as a segment sense amp for reading the local sense amp, a first tri-state inverter serves as an inverting amplifier of a global sense amp, and a second tri-state inverter serves as a bypass circuit for bypassing output from previous memory block. When reading, a voltage difference in the local bit line is converted to a time difference for differentiating high data and low data by the sense amps for realizing low power with dynamic operation. In particular, amplify transistor of the sense amps is composed of relatively long channel transistor for reducing turn-off current. And buffered data path is used for achieving fast data transfer. Additionally, alternative circuits and memory cell structures are described.

This invention relates to a base station supply management device and a method for a mobile communication system, which installs supply switches in the functional modules and automatically controller by a base station control unit, which can monitor the supply of the main power and residual capacitance parameters of stand-by batteries and sends out control orders to turn off related modules according to the supply management algorithm. This invented device and method can prolong the working time of the base station stand-by batteries when fault happens to the main power to secure the receive and forward service of data streams of the ATM interface not influencing accessing RNV of the successive base stations in the way of chain networking and other cascade networking.

The invention relates to a fixed weight loading device for bulk materials, and belongs to the field of mine transportation equipment. The fixed weight loading device for the bulk materials comprises a drive unit, a material guide groove, a conveying device and a support, wherein the material guide groove is arranged on the conveying device which is connected with the support. The fixed weight loading device for the bulk materials is characterized in that the support and the material guide groove are divided into a material receiving part and a weighing part; a weighing sensor is arranged under the weighing part, namely the support; a conveyer belt of the conveying device can be an adhesive tape, a shell belt or a composite adhesive tape and shell belt; the material receiving part and the weighing part, namely the support and the material guide groove are in flexible connection of which the displacement in the vertical direction is not limited; the weighing part, namely the support, is provided with a tensioning device for limiting the displacement in the horizontal direction; and side-slipping resistant wheels are arranged on both sides of the adhesive tape or the shell belt close to a directive point of a roller. The fixed weight loading device for the bulk materials combines a shell belt feeder and force sensor technology, and has the advantages of high weight measuring precision, small mounting space, strong universality, small operating power, reliable use, convenient maintenance, low operating cost and strong environmental adaptation ability.

When in the 1 operation the temperature inside is maintained at target temperature by an evaporator, the cooling power of the evaporator is increased so as to carry out the 2 operation for temperature inside lowering. When in the 2 operation the temperature inside reaches lower limit temperature (Tmin), the compressor stops so as to carry out the 3 operation. When in the 3 operation the temperature inside reaches upper limit temperature (Tmax), the compressor restarts so as to carry out the 1 operation.

The invention provides a central air conditioner flexible peak regulation remote control method based on a distributed framework. A central air conditioner system flexible peak regulation response physical formwork is established and is composed of an equipment layer, a demand side response layer, a communication layer and a scheduling layer. The equipment layer receives and executes an air conditioner load flexible peak regulation command issued from the demand side response layer, and the demand side response layer upwards receives a peak regulation instruction of a power grid, downwards collects air conditioner equipment information through the equipment layer and issues the peak regulation command. The communication layer is a communication network, and the scheduling layer issues the power grid peak regulation instruction and receives the data information of the demand side response layer. According to the high-intermediate-low peak regulation instruction sent out by the power grid, the demand side response layer sends out the peak regulation command according to the actual work condition of air conditioner equipment, personalized peak regulation is conducted on the air conditioner equipment, and compared with the prior art that partial air conditioners are directly stopped by a power grid in a sweeping approach mode so as to achieve peak regulation, the control method achieves flexible peak regulation on the specific air conditioner equipment through the demand side response layer.

A system for efficiently filtering interfering signals in a front end of a GPS receiver is disclosed. Such interfering signals can emanate from friendly, as well as unfriendly, sources. One embodiment includes a GPS receiver with a space-time adaptive processing (STAP) filter. At least a portion of the interfering signals are removed by applying weights to the inputs. One embodiment adaptively calculates and applies the weights by Fourier Transform convolution and Fourier Transform correlation. The Fourier Transform can be computed via a Fast Fourier Transform (FFT). This approach advantageously reduces computational complexity to practical levels. Another embodiment utilizes redundancy in the covariance matrix to further reduce computational complexity. In another embodiment, an improved FFT and an improved Inverse FFT further reduce computational complexity and improve speed. Advantageously, embodiments can efficiently null a relatively large number of jammers at a relatively low cost and with relatively low operating power.

The invention discloses a large highway tunnel wind turbine group efficiency optimization control system. The system comprises a vehicle detector, a CO detector, a VI detector and a wind speed and direction detector, wherein the vehicle detector, the CO detector, the VI detector and the wind speed and direction detector are arranged in a tunnel, an axial flow exhaust fan, an axial flow blower anda jet fan are arranged inside the tunnel ventilation vertical shaft, the jet fan is suspended on a vault of the tunnel, wherein each axial flow fan is provided with a universal frequency converter, each axial flow fan and the jet fan are provided with a programmable controller, one programmable controller is used as a main station, the other programmable controller serves as a slave station, and the master station and the slave station are connected through a communication line; the main station transmits the data detected by the vehicle detector, the CO detector, the VI detector and the windspeed and direction detector to a computer main control system of the tunnel monitoring center through ethernet, the main control system is provided with software for calculating the air volume and the lift pressure of the tunnel and the axial flow fan and the jet flow fan group efficiency optimization control program.

A method and a highway addressable remote transducer (HART) soft modem device for modulating and demodulating one or more analog signals with HART messages are provided. A phase coherent frequency shift keying (FSK) modulator modulates and transmits the analog signals, and a phase coherent FSK demodulator receives and demodulates the analog signals. The FSK modulator outputs 1 or 0 for transmission. With oversampling and low pass filtering, digital modulation performed by the FSK modulator results in low jitter and a good signal to noise ratio. The FSK demodulator applies a fast energy detect algorithm and dynamically reduces or increases a clock speed of a central processing unit (CPU) of the HART soft modem device for reducing power consumption of the CPU. Furthermore, the HART soft modem device uses direct memory access and runs multiple instances of a HART soft modem integrated within a microcontroller to reduce an overall power consumption.

The invention discloses a three-dimensional waterbody circular oxygenation purification plant and a method in waterbody control and restoration field, realizing circular oxygenation purification function for water body in mass flow in big water areas. The circular oxygenation purification plant comprises a power supply, an aeration plant, a water-output vectoring nozzle, a work pipe section, a micro-bubble generator, a water-input vectoring nozzle, a gas supply pipe, a floating body and a floating body support. The method comprises the following steps: pressure gas generated by the aeration plant in water area is fed into the micro-bubble generator fixed in the work pipe section to generate micro-bubble flow flowing upwards; in the water-output vectoring nozzle, micro-bubble flow pushes waterbody to flow upwards to the top, and simultaneously the waterbody at the bottom of the water-input vectoring nozzle enters the vectoring nozzle and then quickly flows to the top of the vectoring nozzle for spraying and then sprays all around, therefore, the purpose of circular oxygenation purification by waterbody exchange is realized by the way that waterbody flows back to the bottom of the vectoring nozzle downwards from a far end for circular flow after surface reoxygenation.

When during a first action of a refrigeration system the internal cold storage temperature is held at a desired temperature by an evaporator, the refrigeration system performs a second action of increasing the cooling capacity of the evaporator to decrease the internal cold storage temperature. When during the second action the internal cold storage temperature reaches a minimum temperature Tmin, the refrigeration system stops a compressor and performs a third action. When during the third action the internal cold storage temperature reaches a maximum temperature Tmin, the refrigeration system drives the compressor and performs the first action.

A refrigerant circuit (20) includes a low stage compressor (101, 102, 121, 122), a high stage compressor (41, 42, 43), an outdoor heat exchanger (44) and a utilization side heat exchanger (83, 93). During a defrosting operation of the refrigeration system (10), the high stage compressor (41, 42, 43) is driven. Refrigerant discharged from the high stage compressor (41, 42, 43) is pumped into the utilization side heat exchanger (83, 93) to heat frost on it from its inside. Thereafter, the refrigerant evaporates in the outdoor heat exchanger (44), is then compressed by the high stage compressor (41, 42, 43) and is sent again to the utilization side heat exchanger (83, 93).

A heat dissipation structure includes a heat sink installed over a heat generating electronic device and a plurality of heat pipes. Proximal ends of the heat pipes are located on the heat sink, and distal ends of the heat pipes extend outside of the heat sink and are connected to a set of fins. The structure is characterized in a plurality of conductor blocks formed on the heat sink at two sides of each heat pipe to aid heat absorption of the heat pipe. Therefore, the lifetime of the heat pipes are prolonged, and the heat dissipation performance is enhanced.

The invention provides ultrathin uncoated tinplate base high elongation percentage wet leveling technological equipment and a method. By arranging a leveling liquid system taking a low-concentration emulsion as a medium in a two-stand leveling unit, the wet leveling elongation percentage of strip steel is raised substantially; by reasonably arranging a splashing prevention device, the splashing of leveling liquid is effectively prevented; equipped with an alkali liquor washing system and a strip steel cleaning system, the surface of the strip steel is subjected to alkali liquor washing and soft water cleaning, so that the leveling liquid remained on the surface of the strip steel is cleaned, and spots of the leveling liquid are effectively controlled; by adopting a curtain wall air knife type air knife blowing system, high-output and low-noise efficient blowing is realized; and equipped with a hot air drying system, surface cleanness and dryness of the strip steel are guaranteed. By adopting the leveling liquid system taking the low-concentration emulsion with the concentration being 0.5-1.5% as the medium, the elongation percentage and the antirust capability of the strip steel are raised and improved significantly, steel plate deformation is improved substantially and the elongation percentage can reach 5-10%, the high elongation percentage wet leveling can repair and cover a part of surface defects, and thus the plate surface quality and the product overall quality are improved.

The invention discloses high-wear-resistance carbide-containing austenitic ductile iron and a preparation method thereof and belongs to the technical field of wear-resistant materials. In order to provide the high-wear-resistance carbide-containing austenitic ductile iron which is good in hardness and toughness, the formula of the carbide-containing austenitic ductile iron is improved. The high-wear-resistance carbide-containing austenitic ductile iron comprises, by weight percentage, 3.50-3.90% of C, 2.90-3.50% of Si, 1.30-1.70% of Mn, less than 0.08% of P, less than 0.012% of S, 0.01-0.04% of RE, 0.025-0.04% of Mg, 0.08-0.18% of Cr, 0.17-0.32% of V, 0.08-0.18% of Ti, 0.30-0.40% of Cu, 0.001-0.006% of B and the balance Fe, wherein RE is rare-earth metal and is preferably Y. The high-wear-resistance carbide-containing austenitic ductile iron has the advantages that the surface hardness of the high-wear-resistance carbide-containing austenitic ductile iron can reach above HRC62, the impact toughness of the high-wear-resistance carbide-containing austenitic ductile iron is more than 2-3 times of that of chromium-based grinding balls, the high-wear-resistance carbide-containing austenitic ductile iron is excellent in comprehensive performance, breaking and distortion during use are avoided, abrasion is only about 200g per ton, and the high-wear-resistance carbide-containing austenitic ductile iron is promising in application prospect in wear-resistant component fields such as metallurgical mine machinery, coal mine machinery, cement industry, engineering machinery, power generating industry and agricultural machinery.

The invention discloses an air humidifier with a purification function. The air humidifier comprises a shell body, wherein a water tank is arranged at the lower part in the shell body, and an evaporator part and a water distribution structure are further arranged in the shell; the evaporator part is located above the water tank, and the lowest position of the evaporator part is higher than a highest liquid level in the water tank; and a fan assembly is arranged at the upper end of the shell body, an air inlet is formed in the side wall of the shell body, an air outlet is formed in the upper part of the shell body, and the air outlet is arranged above the fan blades of the fan assembly. The air humidifier aims to solve the problems that the humidification rate in a unit volume is not high and the humidification effect is not easy to control in an existing humidifier.

A memory cell (10) comprising at least a source electrode (MS) formed on a substrate (6); at least a drain electrode (MD) formed on the substrate (6); at least a coupling layer (1) formed between the source electrode (MS) and the drain electrode (MD), and at least a gate electrode (MG) formed on the substrate (6), wherein the coupling layer (1) comprises a transition-metal oxide exhibiting a filling-controlled metal-insulator transition property; the gate electrode (MG) comprises an oxygen ion conductor layer (2), and the gate electrode (MG) is arranged relative to the coupling layer (1) such that application of an electrical signal to the gate electrode (MG) causes alteration of the oxygen vacancy (3) concentration in the coupling layer (1).