371results about How to "Economical and reliable" patented technology

An electrochromic variable reflectance mirror for a vehicle includes a reflector / electrode on the third surface of the mirror. This reflector / electrode forms an integral electrode in contact with the electrochromic media, and may be a single layer of a highly reflective material or may comprise a series of coatings. When a series of coatings is used for the reflector / electrode, there should be a base coating which bonds to the glass surface and resists any adverse interaction, e.g., corrosive action, with the constituents comprising the electrochromic media, an optional intermediate layer (or layers) which bonds well to the base coating and resists any adverse interaction with the electrochromic media, and at least one highly reflective layer which directly contacts the electrochromic media and which is chosen primarily for its high reflectance, stable behavior as an electrode, resistance to adverse interaction with the materials of the electrochromic media, resistance to atmospheric corrosion, resistance to electrical contact corrosion, the ability to adhere to the base or intermediate layer(s) (if present) and to the epoxy seal, and ease of cleaning. If a base layer is deposited it preferably covers the entire third surface; however, when this is done the highly reflective layer may optionally only coat the central portion of the third surface and not the perimeter edge portion. The third surface reflector / electrode provides of improved electrical interconnection techniques used to impart a voltage drive potential to a transparent conductor on the mirror's second surface.

The present invention relates to the field of hand-held devices that are equipped wit a processor and a digital camera for capturing motion video or still images. Images captured by the camera are used to determine motion of the hand-held device. A resulting motion signal is used as input to a user interface. Displayed images can be scrolled, zoomed or rotated by moving the hand-held device. The motion signal can also be used as input for graphical user interface to move a cursor or other object of the graphical user interface over the display. The invention relates further to a hand-held device provided with means for sensing motion, a display, a keypad with at least a first- and a second key, and a graphical user interface with objects and a cursor. The hand-held device also includes means for transforming the sensed motion of the handheld device into a signal suitable for moving the cursor over the display.

A high electron mobility transistor is disclosed which has a main semiconductor region formed on a silicon substrate. The main semiconductor region is a lamination of a buffer layer on the substrate, an electron transit layer on the buffer layer, and an electron supply layer on the electron transit layer. A source, drain, and gate overlie the electron supply layer. Also formed on the electron supply layer is a surface-stabilizing organic semiconductor overlay which is of p conductivity type in contrast to the n type of the electron supply layer.

A baton carrier featuring an attachment assembly that is rotatable with respect to the holder portion of the carrier. The baton carrier can be placed in various angular positions with respect to the attachment assembly on the user's belt. The rotatable attachment assembly simplifies the removal of a baton, as well an enhancing comfort for the wearer, by allowing the user to position the carrier at an optimum angle. The baton carrier of the present invention can also accommodate belts of different widths. In one embodiment, the attachment assembly has an adjustable member whose position along the assembly can be changed to allow belts of different widths to be looped therethrough. In another embodiment, one of a plurality of inserts of various sizes may be selected for insertion within the belt loop of the attachment assembly.

The invention discloses an elevator remote monitor system and method based on wireless network. The system includes: an elevator data field collection device independent with an elevator control system, a monitor platform and a monitor terminal, the elevator data field collection device is composed of a carriage top data collection device and a control board data collector which are communicated with each other. The method includes: the monitor terminal sends a request to the monitor platform for acquiring the elevator data; the monitor platform sends the request to the elevator data field collection device through the wireless communication network; the elevator data field collection device sends the elevator field data to the monitor platform through the wireless communication network; the monitor platform sends data to the monitor terminal through internet; when the elevator breaks down, the monitor platform sends data to the monitor terminal and the hand-held or vehicle-mounted interface device. The field data of the elevator can be directly acquired on internet according to the invention, thereby the remote monitor and management of the elevator are realized, without the limitation of the field wiring and elevator space position.

A method of diagnosing sensor faults for a heating, ventilation and air conditioning system includes the steps of creating a component model for a specific component within the system. The component model is created through the use of commonly available manufacturing data. Data within the system is input into the component model and compared to calculated and predicted values that are also calculated using the identical component models. Differences between the calculated and actual values is determined and compared to a threshold difference value. If the difference exceeds the threshold value, then a fault is detected. The specific type of sensor fault is determined using probability distribution analysis. Each type of sensor fault produces a different type of statistical deviation from normal distribution. By recognizing these patterns of deviations from the normal distribution, the specific type of fault such as electrical, intermittent or freezing of the sensor can be determined to provide initial information as to the severity and type of remedial action required.

The present invention discloses a running sand layer and sandy gravel layer dynamic-water double-liquid high-pressure slurry-injecting water-shutoff construction method which comprises the following construction steps: drilling a hole, flushing the hole, executing double-liquid high-pressure slurry-injecting operation and sealing the hole. The running sand layer and sandy gravel layer slurry-injecting liquid adopts an ordinary portland cement (P.O.42.5) and 40''Be sodium silicate as material for preparing the slurry, according to the weight proportion of water: cement, namely the cement slurry is prepared with the water cement ratio for 0.5-1.2:1. Then the slurry-injecting liquid is prepared with the volume ratio of cement slurry: sodium silicate for 1:0.08-0.15. The sodium silicate is taken as additive for regulating the initial setting time of the slurry-injecting liquid. The cement slurry can also be doped with fly-ash with cement consumption (weight proportion) for 10%-15%. The invention executes water-insulating construction aiming at the characteristics of large pressure of the underground dynamic water and high flowing velocity in the running sand layer and sandy gravel layer, and can obtain the maximal application sphere and optimum water-shutoff effect.

A first AC power source comprising a power plant (18), and a second power source, typically grid (10), are normally connected via a high speed isolation switching means (19) to provide sufficient AC power to a critical load (14). The power plant (18) comprises a power generating means, e.g. a fuel cell, (60) and a power conditioning system (PCS) (62) having an inverter (64). Power assurance means (65; 10″, 66, 64, 70; 74, 75) is / are operatively connected to at least one of the first and second power sources to enhance an even and continuous supply of power to the critical load (14). The power assurance means (65; 10″, 66, 64, 70; 74, 75) is / are operatively connected to the PCS inverter (64), and may be one, or a combination of, a surge suppression means (65), a double-conversion power connection means (10″, 66, 64, 70) having a rectifier (66); and / or stored energy means (74), such as a capacitor (75).

Seal for the static or dynamic sealing of joints, machine parts or other components or structures such as may be found in choke, kill, or other auxiliary line strings for marine oil or gas well risers, hydraulic or pneumatic cylinders or other actuators. The seal may have a U-cup or solid geometry profile including a secondary sealing lip on both the inner and outer diameter thereof which functions as a wiper for the exclusion of outside contaminants, such as seawater, from joint sealed.

The combined grouting construction process of reinforcing foundation includes the following steps: drilling grouting hole; establishing hole top grouting apparatus; high pressure rotary spraying clear water to expand hole; high pressure rotary spraying mortar and static pressure grouting. The present invention combines static pressure grouting technology and high pressure rotary spraying grouting technology with different advantages, so as to reach maximum application range, optimized reinforcing effect, and successive and safe reinforcement.

An elevator system uses a supercapacitor to store electric energy. Furthermore, the supercapacitor can be used as a source of reserve power in emergency situations, such as power failures. The supercapacitor is connected together with three switching branches to a rectified signal of the power supply of the motor. By closing and opening the switches, the supercapacitor can be charged when the motor load is small. When the motor load is large or when the power supply fails, the electric energy contained in the supercapacitor can be discharged for use by the motor. In an emergency, the motor drives the elevator at a speed lower than normal, and therefore a supply voltage lower than normal is sufficient. Also, energy obtained from braking of the elevator can be stored in the supercapacitor, which has a storage capacity of considerable magnitude as compared to an ordinary capacitor. By applying the invention, the energy consumption of the elevator can be reduced because the waste energy obtained from the power supply can be stored and utilized when more energy is needed.

The invention relates to a process for carrying out liquefaction and heavy hydrocarbon treatment on natural gas, which comprises a low temperature liquefaction process and a heavy hydrocarbon treatment process. The low temperature liquefaction process comprises the following step that mixed refrigerant provides refrigerating capacity for the natural gas which is subjected to partial heavy hydrocarbon removal in the heavy hydrocarbon treatment process so as to implement cooling, complete heavy hydrocarbon removal and liquefaction on the natural gas in a cold box to obtain LNG (Liquefied Natural Gas); the heavy hydrocarbon treatment process comprises the following steps that the natural gas rich in heavy hydrocarbon is subjected to partial heavy hydrocarbon in a heavy hydrocarbon washing tower and the removed heavy hydrocarbon sequentially enters a deethanizing column and a rectifying column to be subjected to removal of light components and be separated into LPG (Liquefied Petroleum Gas) and light oil. According to the process disclosed by the invention, by-products, i.e. the LPG and the light oil, are also produced when the LNG is produced, the process route is advanced and the process is economical and reliable; the process can be suitable for the condition that raw material gas comprises aromatic hydrocarbon such as benzene and the like, the aromatic hydrocarbon such as the benzene and the like are removed along with the heavy hydrocarbon component and the cold box is prevented from being frozen and blocked; the process has large operation elasticity and can be suitable for natural gas heavy hydrocarbon content in a large range; the mixed refrigerant is adopted to circulate the flow and provide refrigerating capacity and gas-phase and liquid-phase refrigerants respectively enter the cold box to carry out heat exchange, so that heat exchange curves of cold and hot fluids are further matched; and the adopted refrigerating flow can effectively avoid liquid accumulation at the bottom of the cold box.

A system and method for biometric-secure point-of-sale or online transactions and / or authentication and ID verification for restricted access that simplifies the checkout process and eliminates fraudulent transactions. The system employs a credit-card-sized device with integral fingerprint reader, on-board memory with pre-designated card number, infrared coder, power strip, plus at least one magnetic strip (encoded with designated financial account to be used for transactions, including routing number), one magnetic strip for personal medical and identification information and a bar code and photo ID for security. The card scanner is activated by an activation scan in which a subset of “minutia” are stored locally. To consummate a transaction (after registration), the user simply plugs their card scanner into a multi-function reader, and scans their own fingerprint. Upon authentication the card transmits the card / user ID to the reader as authentication of the transaction, the reader reads the encoded account numbers and routing information, offers a choice of account to charge to, verifies the total charge and completes the transaction. The process is fully secure.

The extent of engagement of an automatically adjustable friction clutch in the power train of a motor vehicle, wherein the clutch receives torque from a rotary output element of an engine and transmits torque to the rotary input element of a transmission, is determined by an electronic control unit in conjunction with an actuator which is responsive to signals from the control unit. Under normal circumstances, the adjustment of the clutch is selected on the basis of control signals which depend upon the actual RPM of the output element and the RPM of the input element. When the actual RPM of the output element departs from a desired RPM, the control signal is altered to reduce the rate of torque transmission by the clutch upon a determination that the actual RPM is below the desired RPM, and to increase the rate of torque transmission by the clutch when the actual RPM exceeds the desired RPM.

The invention discloses an intelligent water-saving field irrigation system of an irrigation district. A data acquisition module comprises a soil moisture acquisition module and a weather information acquisition module, wherein the soil moisture acquisition module is responsible for acquiring information of moisture, temperature and a water level in soil; the weather information acquisition module is responsible for acquiring information of air humiture, wind speed, wind direction, air pressure and rainfall; a transmission base station is used for transmitting the information of the moisture, temperature and water level in the soil acquired by the soil moisture acquisition module in the data acquisition module; an intelligent controller generates a channel gate opening and closing control signal according to the information of the moisture, temperature and water level in the soil and the weather information; an execution module controls a gate motor to operate according to the channel gate opening and closing control signal; a remote monitoring center receives information of water consumption, water rate, water flow and soil moisture of field irrigation and weather information output by the intelligent controller to switch automatic and manual control of the gate; the gate can be directly controlled manually to operate; and a mobile phone monitoring terminal monitors the soil moisture of the field irrigation and can directly control the gate to operate.

A testing system of gas insulated combined electric appliance equipment in the technical field of electric system comprises a control platform, a voltage regulator, a wave filtering box, a test transformer, a temperature sensor, a sleeve and a partial discharge instrument; the wave filtering box comprises a wave filter, a parallel compensation reactor and a quick protection device. In the invention, the technologies of SF6 insulation and reactor compensation are used for shielding spatially coupled partial discharge interference signal at the outside of the measuring system so that the rated partial discharge of the system is lower than 5pC, which not only reduces the partial discharge of the GIS testing equipment but also solves the effect on the test experiment of on-site interference. The invention can be applied in the high voltage power supply of 500kV GIS on-site AC withstand voltage test and local partial discharge test and 110 kV or 220kV GIS on-site AC withstand voltage test and local partial discharge test.

A secure enclosure for an automated banking machine includes a chest portion and a moveable door. The door has mounted thereon a locking bolt work mechanism which is operable to secure the door in a closed position. The bolt work mechanism includes a drive cam that is connected to an idler cam by a cam link. The drive cam is further connected to a locking bolt by a drive bolt link. The idler cam is connected to the locking bolt by an idler bolt link. Movement of the drive cam enables movement of the locking bolt between extended and retracted positions. The locking bolt can have a stepped edge configuration to provide stepped engagement in securing a door having a similar stepped edge configuration.

Silicon particles, including powder suitable for plasma spraying semiconductor devices, is formed by milling by a roller mill including silicon rollers and / or plates and having feed and collection systems comprising silicon and operated in a controlled ambient.

A solar tracking assembly that incorporates a cross-divider shade board, four sensor solar panels, and a control system to automatically track sunlight. The design of this solar tracking system is very simple and economical, and it can achieve high efficiency in the power generation. The design is simple and economical because the tracking mechanism is by utilizing the same solar panels for sensing sunlight as well as for power generation. Together with a cross-divider shade board, signal wires, and a control system, the four sensor solar panels and additional standard solar panels can be assembled to facilitate automatic sun tracking. No additional electronic devices for sensing are needed other than using the standard solar panels.

A repeater system for receiving a modulated input signal and for transmitting a modulated output signal comprising a clock oscillator for providing a repeater system clock, a demodulator for demodulating an input signal and a modulator for modulating the demodulated signal to obtain a modulated signal. The demodulator comprises a first mixer, a first controllable oscillator and a feedback circuit, the first controllable oscillator being controlled by a first control value such that the frequency of the demodulated signal approaches a desired value. The modulator comprises a second mixer and a second controllable oscillator, the second controllable oscillator being controlled by a second control value such that the modulated output signal has a predetermined output frequency. A controller derives the second control value.

Improved fabricated subcomponents, components and rotating biological contactor embodiments that are assembled from, and that incorporate, such subcomponents and components are achieved. The components comprise tank sections, bulkheads, contactor drums, paddle wheels, shaft assemblies including associated bearings and supports, each of which may be assembled from preformed subcomponents if desired. Rotating biological contactors are assemblable at an installation site, which may be a confined space if desired, by two men with simple tools. In an assembled rotating biological contactor, the shaft assemblies can rotated by an electric motor, by fluidic pressure exerted upon paddle wheel blades, or by both in combination.

The invention relates to a high performance bridge structure steel plate as well as a production method. The steel comprises the chemical constituents, in weight percent: 0.02 percent to 0.06 percent of carbon, 0.15 to 0.25 percent of silicon, 1.40 percent to 1.60 percent of manganese, phosphorus<=0.02 percent, sulfur<=0.010 percent, 0.025 percent to 0.045 percent of niobium, 0.008 to 0.020 percent of titanium, 0.020 percent to 0.050 percent of aluminum, 0.15 to 0.30 percent of nickel, 0.25 to 0.35 percent of chromium, 0.15 to 0.30 percent of molybdenum, 0.25 to 0.35 percent of copper, nitrogen<=0.005 percent, balance iron. The method has the production processes of: 1. hot metal pretreatment, 2. converter smelting, 3. LF refining, 4. VD vacuum degassing or RH decarburization degassing, 5. continuous casting, 6. slab heating, 7. rough rolling, 8. finish rolling, 9. cooling control by ACC, 10. tempering, 11. finishing, and 12. warehousing to finished products.

The invention belongs to a device for solid-liquid separation / classification and non-homogeneous separation, specifically a hydraulic cyclone with improved structure of central post and overflow pipe. The device comprises a feed pipe, a cylindrical section, a coniform section, an overflow pipe and a hollow tubular central post with partial-spiral fins and spiral flow deflectors and provided outside the overflow pipe. The central post is a hollow tube provided thereon with a plurality of holes. The spiral flow deflectors are provided on the outer surface of the central post. The spiral fins are provided on the overflow pipe from the bottom of the overflow pipe to a height below the bottom of an inlet pipe. Compared with the prior art, the separation efficiency of the hydraulic cyclone is increased by 5-10% and the energy consumption is reduced by 20%. The hydraulic cyclone has high stability and reliability in separation efficiency and is suitable for solid-liquid separation in ore dressing, dredging, chemical and petroleum industries.

A variable speed limit sign including a controller and a display operatively coupled to the controller is provided. A traffic control system including a variable speed limit sign and methods of use thereof are also provided.

The invention relates to a method for removing instantaneous short circuit earth faults of a direct current line of a flexible direct current power transmission system, and belongs to the technical field of power electronics. Requirements of an electric power system on the fault removing capability of the flexible direct current power transmission system is considered. By means of the structural characteristics of the flexible direct current power transmission system and the characteristic that an ac circuit breaker can break a direct current the magnitude of which is lower than a certain scope, the ac circuit breaker is connected in series between a converter transformer neutral point and an earth resistor, and plays a role in breaking direct current fault currents. By employing the ac circuit breaker, the problem that the whole flexible direct current power transmission system needs to be shut down in order to remove instantaneous short circuit earth faults of the direct current line is solved. The method is advantaged by being economic and reliable, and being mature in technology, simple to implement and excellent in performance, and can be applied to practical engineering of flexible direct current power transmission.

A thrust bearing assembly including a flexible thrust washer sandwiched between first and second races. The thrust washer includes notches between adjacent support regions. When a thrust load is applied to the bearing assembly, the thrust washer elastically flexes at the notched or unsupported regions and creates undulations in the washer's dynamic surface to create an initial hydrodynamic fluid wedge with respect to the corresponding dynamic surface of the second race. The gradually converging geometry created by these undulations promotes a strong hydrodynamic action that wedges a lubricant film of a predictable magnitude into the dynamic interface between the thrust washer and the second race in response to relative rotation. This lubricant film physically separates the dynamic surfaces of the thrust washer and second race from each other, thus minimizing asperity contact, and reducing friction, wear and bearing-generated heat, while permitting operation at higher load and speed combinations.

The invention provides a multi-point mooring and positioning constant-tension self-adaptive control system and method for a ship. The multi-point mooring and positioning constant-tension self-adaptive control system comprises m mooring winches, a detection system and a monitoring station. Each mooring winch is provided with the following detection equipment including an encoder, a tension sensor, a mooring cable angle sensor, a brake position proximity switch, a clutch position proximity switch and a ratchet wheel and pawl position proximity switch, wherein the encoder is used for detecting the length value and the speed value of a mooring cable; the tension sensor is used for detecting the real-time tension value of the mooring cable; the mooring cable angle sensor is used for detecting the vertical angle and the horizontal angle of an anchor cable; the brake position proximity switch is used for detecting the on-off state of a brake; the clutch position proximity switch is used for detecting the on-off state of a clutch; and the ratchet wheel and pawl position proximity switch is used for detecting the on-off state of a ratchet wheel and pawl stopping device. The monitoring station is connected with all servo drivers and all the pieces of detection equipment. The multi-point mooring and positioning constant-tension self-adaptive control system and method for the ship have the advantages of being simple in structure, economical, reliable, accurate in positioning, low in positioning cost and low in energy consumption.

The invention relates to a medical apparatus for tumor radiation therapy, in particular to a same-source double-energy medical electron linear accelerator for image guided radiation therapy (IGRT). The same-source double-energy medical electron linear accelerator for the IGRT is characterized in that: an accelerating tube is vertically arranged and is connected with a moving target below the accelerating tube; an energy switch is arranged on the accelerating tube; an X-ray heavy metal target and a low atomic number target are arranged on the moving target; and the X-ray heavy metal target and the low atomic number target are connected with a driving mechanism of the moving target. The same-source double-energy medical electron linear accelerator for the IGRT has the advantages that: energy of an electron beam generated by the accelerating tube is reduced by the energy switch; by using the characteristic that the electron beam impacts the low atomic number target to generate more low-energy beams, X rays with clear portal imaging are obtained; and the same-source double-energy medical electron linear accelerator for the IGRT has the characteristics of easy mode conversion, same source, stable beam, clear image, economy, reliability, simpleness and convenience in clinical use and the like.