77results about How to "Uniform displacement" patented technology

A micromachined ultrasonic transducer array comprising a multiplicity of cMUT cells built on a substrate. Each cMUT cell comprises a compliant support structure built on the substrate, a membrane supported over a cavity by the compliant support structure, a first electrode supported by the membrane, and a second electrode that forms a capacitor with the first electrode, the cavity being disposed between the first and second electrodes. The compliant support structure uncouples the non-membrane outer surface of each cMUT cell from the supporting substrate.

A micromachined ultrasonic transducer array comprising a multiplicity of cMUT cells built on a substrate. Each cMUT cell comprises a compliant support structure built on the substrate, a membrane supported over a cavity by the compliant support structure, a first electrode supported by the membrane, and a second electrode that forms a capacitor with the first electrode, the cavity being disposed between the first and second electrodes. The compliant support structure uncouples the non-membrane outer surface of each cMUT cell from the supporting substrate.

An eccentric mass (EM) motor in a vibrotactile transducer provides a wide band vibrational stimulus to a mechanical load in response to an electrical input. The eccentric mass and motor may form part of the transducer actuator moving mass, which is in contact with a load, i.e, the skin of a user. The moving mass and the actuator housing may be in simultaneous contact with the load. The moving mass may be guided by a spring between the actuator housing and the moving mass. The load, moving mass, spring compliance, and housing mass make up a moving mass resonant system. The spring compliance and system component masses may be configured to maximize the actuator displacement and / or tailor the transducer response to a desired level. This configuration may be implemented as a low-mass wearable wide-band vibrotactile transducer.

A micromachined ultrasonic transducer array comprising a multiplicity of cMUT cells built on a substrate. Each cMUT cell comprises a compliant support structure built on the substrate, a membrane supported over a cavity by the compliant support structure, a first electrode supported by the membrane, and a second electrode that forms a capacitor with the first electrode, the cavity being disposed between the first and second electrodes. The compliant support structure uncouples the non-membrane outer surface of each cMUT cell from the supporting substrate.

An eccentric mass (EM) motor in a vibrotactile transducer provides a wide band vibrational stimulus to a mechanical load in response to an electrical input. The eccentric mass and motor may form part of the transducer actuator moving mass, which is in contact with a load, i.e, the skin of a user. The moving mass and the actuator housing may be in simultaneous contact with the load. The moving mass may be guided by a spring between the actuator housing and the moving mass. The load, moving mass, spring compliance, and housing mass make up a moving mass resonant system. The spring compliance and system component masses may be configured to maximize the actuator displacement and / or tailor the transducer response to a desired level. This configuration may be implemented as a low-mass wearable wide-band vibrotactile transducer.

An illuminator and surgical illumination system are disclosed, one embodiment of the surgical illumination system comprising: a light source for providing a light beam; an optical cable, optically coupled to the light source for receiving and transmitting the light beam; a handpiece operably coupled to the optical cable; an optical fiber assembly operably coupled to the handpiece, wherein the optical fiber assembly is optically coupled to the optical cable to receive and transmit the light beam and wherein the optical fiber assembly comprises a plurality of fiber guides, wherein each fiber guide comprises a cladding having one or more fiber cores for transmitting and scattering the light beam to illuminate the surgical field, and a cannula, operably coupled to the handpiece for housing and directing the optical fiber assembly. The surgical illumination system can further comprise a separator operable to maintain a spacing between the fiber guides. The optical fiber assembly, the cannula, and the handpiece can be fabricated from biocompatible materials. The optical fiber assembly can be operably coupled to the handpiece to enable linear displacement of the optical fiber assembly within the cannula. The handpiece can include an adjustment means, such as a push / pull mechanism, for adjusting the linear displacement of the optical fiber assembly. Other adjusting means as known to those in the art can also be used including, for example, a mechanical coupling, an electrical coupling, a magnetic coupling, a pneumatic coupling or any combination thereof. The distal end of the optical fiber assembly can be coincident with an open aperture of the cannula. Adjusting the linear displacement via the adjusting means can thus cause the optical fiber assembly to exit the open aperture by an amount corresponding to the change in linear displacement (a reverse adjustment can retract the optical fiber assembly). Further, a separator can be positioned between the fiber guides in such a way that the fiber guides can be uniformly displaced outward from one another by an amount proportional to the change in linear displacement from the distal end of the cannula.

A semiconductor dynamic quantity sensor has a support substrate with a rectangular opening portion, and a movable electrode and fixed electrodes are respectively supported by the support substrate through supporting portions to face the opening portion. The supporting portions supporting the movable electrode are arranged in a direction approximately the same as that in which the supporting portions supporting the fixed electrodes are arranged.

The integral vertical stepper is comprised by a mechanical system intended to generate a dependent and coordinated ascent and descent constant movement, sliding on an upright structure that holds the pedal system, and this in turn supports the two square profiles utilized as handles, thus achieving that all the elements work in a coordinate way, due that it unifies all its constituent elements, with the only purpose of giving stability, support and motor coordination when performing the exercises and routines proposed, thus avoiding risks and possible accidents. Also, said mechanical system is characterized by its simplicity in the design and its functional features, due that all its constituent parts are designed to carry out the adequate functions, i.e., a metal wire coated with a plastic layer, a pulley, a pedal system, two parallel rectangular profiles, two square profiles used as handles, two rails and three wheels.

The invention discloses a stepless delivery regulation method of reciprocating-piston compressor, which is characterized in that duty cycle is determined using the maximum delivery and the actually required delivery of the compressor under full load; an inhalation valve is forced to open or freely closed through a control system and a or a plurality of executive device (s) for pressing the inhalation valve, enabling load circulation and non-load circulation to be alternatively distributed to comply with the duty cycle, thereby evenly supplying the required delivery. The invention has the advantages of capability of 0 to 100% continuous delivery regulation, less pressure fluctuation, saved energy, lowered noise, simple and reliable regulation effect.

A cosmetic condition (e.g., a pigmented lesion or a vascular lesion) can be treated using a delivery system that displaces blood from a target region of skin. The delivery system can include an optical element having a convex surface. The optical element can be a non-converging optical element that transmits the beam of radiation to the target region of skin.

The invention discloses a stepless adjustment method for the discharge volume of a reciprocating piston compressor. The method determines the duty ratio by the maximum discharge volume of the full-load operation of the compressor and the actual required discharge volume. Through a control system and a Or multiple actuators that can press open the suction valve to control the forced opening or free opening and closing of the compressor suction valve, so that the compressor loading cycle and no-load cycle are distributed at intervals and in line with the duty cycle, so as to uniformly provide all Exhaust volume required. The invention has the effect of realizing continuous adjustment of exhaust volume from 0 to 100%, small pressure fluctuation, energy saving and noise reduction, and simple and reliable adjustment.

The invention relates to an inter-crack space synchronous water injection-oil extraction method of a multistage fracturing horizontal well. The method comprises the following steps: forming multiple cracks of the staged fracturing horizontal well; extracting with natural energy in the initial production stage until bottom hole pressure is reduced to bubble point pressure; taking out an oil pipe; mounting an injection-extraction separation device on each odd-level crack, mounting an injection allocation valve on each even-level crack, forming jet holes, corresponding to the odd-level cracks, in the oil pipe, and putting the oil pipe to the home position; closing a well mouth oil extraction valve, starting the injection allocation valves, and injecting water into the annular space of an oil jacket, wherein the injected water flows through a guide pipe and enters the even-level cracks; and opening the well mouth oil extraction valve, wherein crude oil is produced from the odd-level cracks and enters an annular space formed by the guide pipe and a sleeve and the oil pipe and then is extracted through the oil pipe while water injection into the even-level cracks is continuously kept. Each injection-extraction separation device comprises a guide pipe and a packer. The method is simple in technology, can realize uniform displacement and has relatively high practical application value.

An illuminator and surgical illumination system are disclosed, one embodiment of the surgical illumination system comprising: a light source for providing a light beam; an optical cable, optically coupled to the light source for receiving and transmitting the light beam; a handpiece operably coupled to the optical cable; an optical fiber assembly operably coupled to the handpiece, wherein the optical fiber assembly is optically coupled to the optical cable to receive and transmit the light beam and wherein the optical fiber assembly comprises a plurality of fiber guides, wherein each fiber guide comprises a cladding having one or more fiber cores for transmitting and scattering the light beam to illuminate the surgical field, and a cannula, operably coupled to the handpiece for housing and directing the optical fiber assembly. The surgical illumination system can further comprise a separator operable to maintain a spacing between the fiber guides.

An aerator for mechanically inducing near laminar flow and controlled turbulence in a liquid waste treatment lagoon or pond. A blower, blower mount platform, diffuser modules, aeration manifold, aeration chamber, an adjustable, telescoping aeration chamber extension, baffles, and buoyancy apparatuses attach to a frame. The diffusers are located beneath the surface of the body of liquid at a predetermined, fixed depth. The blower supplies air to the diffusers and liquid-bubble mixture is released into an aeration chamber where artificial aeration is maximized. The mixture then rises through the aeration chamber. Bubble dissipation and flow conditioning baffles force bubbles to coalesce and vertically dissipate into the atmosphere. The liquid flows over the top of the baffles and a flow manipulation rim to radiate outward and parallel to the pond surface with minimum turbulence at an optimum flow discharge rate. The aerator provides optimized oxygen transfer at low energy costs.

The invention discloses a multi-variety centralized lubrication system for a construction elevator. The multi-variety centralized lubrication system comprises an electric lubricating pump communicated with a filter. The filter is communicated with a distributor communicated with a lubricating accessory. The lubricating accessory is a combined component of a lubricating guide brush or lubricating guide roller and a lubricating guide gear. The lubricating guide brush is provided with a cavity inside, and the cavity is communicated with the distributor. The multi-variety centralized lubrication system has the advantages that the pressure and discharging amount of lubricating grease on lubricating points are even and consistent, defects of unevenness and nonregulation of an existing system can be avoided; usage of the lubricating grease can be saved effectively (the lubricating grease evenly coats on contact faces of guide rails or racks through the guide roller), and defects that no accurate target exists and the lubricating grease is wasted heavily according to the existing system are avoided; when the lubricating grease arranged in an electric lubricating pump of the existing system is in a low level, defects that no grease is sprayed out, spraying power is powerless and spray amount is small exit, and the defects can be overcome by the aid of the novel system.

The invention relates to a socket and spigot type pipeline connector with an anchoring structure. The socket and spigot type pipeline connector with the anchoring structure is used for continuous nodular cast iron pipes. By means of the socket and spigot type pipeline connector, anchoring reliability can be improved, structural service life can be prolonged, pipeline maintaining cost can be reduced, optimization and simulation of the connector structure can be performed easily, and pipeline transporting capacity is improved. The socket and spigot type pipeline connector comprises a socket, a spigot and a sealing piece which is arranged between the socket and the spigot and used for sealing and locking the pipeline connector. The socket comprises an annular groove which is formed by sequentially connecting a first annular vertical wall, a conical wall, a cylindrical inner wall and a second annular vertical wall in a defined manner. The sealing piece comprises an elastic material ring and a plurality of anchoring pieces embedded in the elastic material ring. Each anchoring piece comprises a head and a plurality of meshing teeth. Each anchoring piece is provided with a rotating circle center. The portion, connected with the annular groove in an abutting manner, of each head is an arc supporting face. The abutting joint area of each arc supporting face and the annular groove is located on the joint of the first annular vertical wall and the conical wall.

The invention discloses a calcinator for industrial by-product gypsum. The calcinatory comprises a calcination chamber, wherein a feeding port is formed in the upper end of one side of the calcination chamber, and a discharging port is formed in the lower end of the other side; multiple overflow adjusting plates are arranged in the calcination chamber; the multiple overflow adjusting plates are uniformly mounted in the calcination chamber and divide the calcination chamber into multiple calcination cavities; a heat exchange system is mounted in each calcination cavity and comprises a steam pipe and fins mounted on the outer side of the steam pipe, the steam pipe is of a bending structure from top to bottom, a steam inlet is formed in the upper end of the steam pipe, and a condensate outlet is formed in the lower end. The calcinator for industrial by-product gypsum has the advantages of uniform heating, constant temperature, short standing time, high heat transfer efficiency and low energy consumption.

A temperature-operating water flow valve may include a hollow body having axially offset proximal and distal open ends respectively such that the body may have an internal temperature. A temperature-activated plunger release mechanism may be seated inside the body and intermediately positioned between the proximal and distal open ends respectively. The temperature-activated plunger release mechanism may be automatically reciprocated along a linear travel path as the internal temperature rises above a threshold internal temperature and falls below the threshold internal temperature respectively. A temperature-activated plunger release mechanism may automatically open and close during the reciprocation along the linear travel path such that heated water is respectively permitted and prohibited to egress the distal open end of the body.

The invention discloses a multiple thermal fluid composite system oil displacing method and particularly relates to a method for economically and effectively improving the oil recovery rate for the later period of water displacing normal heavy oil reservoir exploitation. The method comprises the steps of a, injecting mixtures, which is 0.15-0.2 time the formation pore volume, of hot water and flue gases; b, injecting a foaming agent solution into a water injection well for 25-30 d; c, injecting a viscosity reducer solution into the water injection well for 5-10 d; d, injecting the mixtures of hot water and flue gases for 60-80 d; e, repeating the steps b, c and d. The method displaces a great amount of residual oil which cannot be extracted through common water displacing in an oil reservoir, the heavy oil reservoir recovery rate after water displacing is improved greatly by 26.4%, and the final reservoir recovery rate can reach 48.8%. Meanwhile, flue gases generated by combustion are directly injected underground, the thermal efficiency can be improved by more than 10%, and environment pollution is reduced.

The invention relates to a method for UV (Ultra-Violet Ray) lustering of an offset press through hollowing lining papers, which has advantages of low production cost, high efficiency and improvement of service life of rubber blankets. The method specifically comprises the following steps of: choosing 3-6 pieces of lining papers, wherein the width of the lining papers is 750-800mm, the length is 1000-1100mm and the thickness of each piece of lining paper is 0.1-0.3mm; cutting the areas of the lining papers where corresponded to non-image parts of a print to form hollows, and reserving printing areas; according to the specification and the thickness of the papers of the print, calibrating the pressures among the ink rollers of all printing units, and then installing color sequence printing plate; flatly paving and correspondingly arranging the cut lining papers on the printing area of the rubber blanket, then installing the lining papers and the rubber blanket on a rubber roller, and then fixing and locking; choosing an anilox roller, starting a gloss oil after calibrating printing pressure, and then pumping UV gloss oil to a gloss oil chamber; adding ink to a printing color unit, then calibrating the pressures of the ink rollers and the printing pressure among the three rollers, and then starting the offset press.

In an electronic component device, electrodes of an electric component and respective wiring lines on a board are collectively bonded together via bumps using ultrasonic vibration. The wiring lines include wiring lines that are substantially parallel to the direction of ultrasonic vibration and wiring lines that are substantially perpendicularly to the direction of ultrasonic vibration. A displacement inhibiting layer is provided inside the board in a portion below the wiring lines that are substantially perpendicular to the direction of ultrasonic vibration.

The invention relates to a bearing for axially mounting a rotor of a gas turbine. Said bearing comprises a bearing body that is disposed stationary relative to the position of the rotor, a hydraulic piston arrangement which is accommodated by the bearing body, and a hydraulic system that is fluidically connected to the hydraulic piston- arrangement. In order to create a bearing which also absorbs bearing forces that occur due to high dynamic thrusts of the rotor while ensuring secure mounting of the rotor, a diaphragm is mounted between the hydraulic piston arrangement and the hydraulic system.

The invention provides an oilfield water injection method capable of realizing balanced displacement of remaining oil. The oilfield water injection method is mainly used for solving the problems of poor oil displacement efficiency and low petroleum recovery efficiency of the existing water injection development applied to a nonhomogeneous reservoir stratum. The method comprises the steps of forming holes in a shaft uniformly and densly, wherein the hole density in the transverse direction of the shaft is determined according to crustal stress, well network, remaining oil and physical properties, and the distance between two rows of holes in the longitudinal direction of the shaft is determeined according to the physical properties of an oil layer during the hole distribution process; carrying out construction according to the distributed holes, and forming a hole in the side direction; arranging a flow rate-adjustable water nozzle in the formed side hole; carrying out underground butt joint between an underground comprehensive testing and controlling meter in an automatic flow rate testing and controlling system and the flow rate-adjustable water nozzle, and adjusting the opening degree of the water nozzle to realize accurate control of the water injection quantity at each point; and beginning the water injection work. When the oilfield water injection method provided by the invention is used for injecting water, water injection quantities at all points are different according to the nonhomogeneity of each point of a reservoir stratum, and therefore, balanced displacement of remaining oil is realized, the water absorption profile of a water well is improved and the oilfield recovery efficiency is improved.

The invention provides a new method for dividing water injection layer sections of an offshore water injection well. The new method for dividing the water injection layer sections of the offshore water injection well includes the following steps: a step 1, comprehensively considering the permeability gradational difference, the thickness gradational difference, the number of small layers in each layer, the water logging degree of each layer and the pressure difference so as to determine a water injection well layered injection boundary standard through a numerical simulation method; a step 2, counting the number of layers, the sand thickness, the permeability, the water logging degree and pressure distribution of an injection opened layer position of an existing layer section of the water injection well, and calculating the thickness gradational difference and the permeability gradational difference of each water injection layer section; a step 3, performing layer section primary division on the water injection well according to the layered injection boundary standard; and a step 4, considering the water injection process, performing suitable adjustment, and acquiring a final division result. The new method for dividing the water injection layer sections of the offshore water injection well is clear in thinking , is simple to apply, is feasible in offshore and similar oil reservoir water injection well layer section division.

The invention relates to a micro-machined ultrasonic transducer and specifically relates to a spring embedded type micro-machined ultrasonic transducer, in particular to a spring embedded type capacitive micro-machined ultrasonic transducer. The micro-machined ultrasonic transducer comprises a first support layer and a second support layer, wherein a first electrode is arranged on the first support layer, a second electrode is arranged on the second support layer, the second support layer is a substrate, an open structure is arranged on the substrate, the substrate is divided into an upper part and a lower part, and the second electrode is arranged on the upper part; and the first support layer is a commercial veneer, the first support layer is connected with the second support layer through a vertical elastic connector, and a gap is formed between the first support layer and the second support layer. As the micro-machined ultrasonic transducer has better transmitting and receiving performances, the whole surface of the transducer can be a useful region, and the micro-machined ultrasonic transducer can further have a perfect fill factor. The micro-machined ultrasonic transducer can reduce the parasitic capacitance, improve the sensitivity, the breakdown voltage and the design flexibility of the transducer, and improve the reliability and the bandwidth.

The invention provides a development and adjustment method for a multi-layer sandstone oil reservoir with developed scattered sand bodies. The development and adjustment method comprises the followingsteps that 1, fine reservoir geological research and geological modeling are carried out; 2, a numerical model is established; 3, the numerical model is combined with an oil reservoir engineering method to study the distribution of remaining oil; 4, a multi-round series of strata alternating feasibility study is carried out; 5, the series of strata alternating resource is evaluated; 6, a multi-round series of strata alternating scheme is designed; and 7, index prediction and economic evaluation are carried out, and the scheme is implemented. The development and adjustment method for the multi-layer sandstone oil reservoir with the developed scattered sand bodies has good practicability for improving the reserve control degree and oil recovery speed in the late stage of ultra-high water cut of the multi-layer oil reservoir, under the condition of low oil price, the recovery ratio of the multi-layer reservoir in the late stage of the ultra-high water cut can be economically and effectively improved, and the development and adjustment method provides support for stable production and production increase in old oil fields.

The invention discloses a chemical intervention in-situ emulsification system, which comprises the following raw materials by weight: 0.1-0.3% of a CO2 responsive monomer, 0.1-0.3% of a surfactant, 0.01-0.1% of a hydrophilic nano-material, and the balance of water, the surfactant is an anionic surfactant or an anionic-nonionic surfactant, The nano material is one or a mixture of more of crystalline flake graphite powder, graphene oxide, hydrophilic silicon dioxide and hydrophilic carbon nanotubes. The chemical intervention emulsification system can be suitable for heavy oil reservoirs and thin oil reservoirs, meanwhile, the viscosity of the chemical intervention emulsification system is adjusted to a moderate degree, the viscosity of the chemical intervention emulsification system is not too small or too large, and the chemical intervention emulsification system can be used for heterogeneous reservoirs. Meanwhile, after the crude oil forms the emulsion, other demulsifiers do not need to be added, and rapid demulsification and dehydration can be realized only by introducing N2 gas.

The invention discloses a method for increasing oil recovery of heavy oil reservoirs through a composite heat carrier, and particularly relates to a method for increasing oil recovery of heavy oil reservoirs through a composite heat carrier composed of hot water, a gas and a chemical agent. According to the method, crude oil recovery is increased, by injecting hot water and flue gas generated by boiler burning together into an oil layer, and by injecting a foaming agent by means of slug injection. The method includes the steps of a, injecting a mixture of hot water and flue gas 0.15-0.2 times the pore volume of a formation; b, injecting foaming agent solution into a water injection well for 25-30 d; c, injecting the hot water and flue gas mixture for 60-80 d; d, repeating the steps b and c. Water (vapor) can be effectively blocked from channeling, vapor wave and volume are increased, heavy oil recovery is substantially increased, and as the flue gas generated by burning is injected directly underground, heat efficiency can be improved and environmental pollution can also be reduced.

The invention provides a fracture-containing tight reservoir air gravity drive potential evaluation experiment method and device. The method comprises the following steps that firstly, gasometry of porosity and permeability of a fracture development core is carried out; secondly, after core oil saturation, a T2 spectrum is measured; S3, in air at the oil saturated core, a centrifugal machine is used for carrying out gas drive oil high-speed centrifuging with the centrifugal force sequentially increased, and the core is centrifuged until no oil is output under various kinds of centrifugal force, and after each time of centrifugation, a core T2 spectrum is tested; and fourthly, the T2 spectrum is used for working out gas drive movable fluid percents and total gas drive movable fluid percentscontrolled by different throat intervals, air gravity drive potential is represented, and fracture-containing tight reservoir air gravity drive potential evaluation is finished. The method achieves the aim that in a lab, the fracture development core is used for carrying out fracture-containing tight reservoir air gravity drive potential evaluation for the first time, high-speed centrifugal gas drive is used for simulating air gravity drive, and the basis is provided for air gravity drive development of a strong heterogeneity tight reservoir particularly a fracture development tight reservoir.