439 results about "Leveling effect" patented technology

Provided are a method and apparatus for wear-leveling of a nonvolatile data storage device, whereby a wear-leveling effect is maximized by storing an age value indicating a write time in each data unit of the nonvolatile data storage device and detecting a static data area based on age values. The method includes storing an age value indicating a write time in each unit assigned to write data therein, reading an age value stored in a unit, and determining a static data area based on the read age value. Accordingly, a static data area can be correctly detected without additional overhead, and a wear-leveling effect of the entire storage device can be increased by moving data to and from the static data area, thereby extending the lifespan of the storage device.

A system for maintaining a height adjustable patient bed in a level position while adjusting height of the bed is provided. The system has electrically powered linear actuators having internal position sensors, the linear actuators operable to adjust the height of the bed. The system also has control means, electrically coupled to the linear actuators, which compares position information from the internal position sensors and then adjusts the power supply to one or the other of the linear actuators in response to the position information. This permits the trailing linear actuator to catch up to the lead linear actuator to maintain the bed in a level position while the height of the bed is being adjusted. Since the internal position sensors work on small changes in position, the leveling effect is not noticeable leading to less tilt of the bed and a smoother motion during height adjustment of he bed.

A system for maintaining a height adjustable patient bed in a level position while adjusting height of the bed is provided. The system has electrically powered linear actuators having internal position sensors, the linear actuators operable to adjust the height of the bed. The system also has control means, electrically coupled to the linear actuators, which compares position information from the internal position sensors and then adjusts the power supply to one or the other of the linear actuators in response to the position information. This permits the trailing linear actuator to catch up to the lead linear actuator to maintain the bed in a level position while the height of the bed is being adjusted. Since the internal position sensors work on small changes in position, the leveling effect is not noticeable leading to less tilt of the bed and a smoother motion during height adjustment of he bed.

A device for the power transmission of microwaves between a strip-line and a number of parallel cavity waveguides arranged in a group antenna. The strip-line includes H-shaped slots. These slots are centered with respect to a central conductor. Opposite each of the slots, a corresponding slot is arranged through the wall of the cavity waveguide. Electrically conducting seals are arranged to follow immediately outside the contours of the slots. The strip-line is fixedly fastened to the seals and the ridge waveguide, whereby good electrical coupling is achieved. Simultaneously, small cavities are formed between the slots. These cavities have a leveling effect such that the demands on mechanical precision is appreciably lowered, such that the tolerance to placement of the slots opposite to each other is increased substantially as compared to the case of the waveguides directly abutting the strip-line.

A low-cost method and system for processing force feedback effects generated at a host for playback at a physical interaction device by moving much of the force feedback effect processing from the device back to the host, and performing this in a manner that does not adversely affect latency effects or the load on the host processor. This is achieved by a novel combination of software and hardware techniques. In particular, the device hardware uses a low-cost microcontroller with limited processing capabilities, minimal memory and a low speed USB interface. The small memory also alleviates the need for buffer assignments and memory management. On the other hand, the device driver software residing on the host computer relies on the host's powerful processor to perform the majority of the effect management and computation, as well as translating all the complex high-level effect commands to a unique, small and simplified set of low-level commands which are periodically updated and transferred to the device for playback.

The invention relates to the technical field of crosscut production equipment for metal sheet materials, in particular to a full set of crosscut production line for the metal sheet materials. The production line comprises an uncoiling unit, a levelling unit, a numerical control cut-to-length unit, a crosscut unit and an overlapping unit. The full set of crosscut production line for the metal sheet materials improves the automatic in uncoiling, levelling, cut-to-length, crosscut, overlapping and the like substantially, and is quick in production speed and high in efficiency; a sixfold levelling mechanism is adopted to perform the leveling on the metal sheet materials, and the leveling effect is good; a numerical control cut-to-length mechanism and a passive correction mechanism are adopted to perform size positioning, so that the cutting precision is improved greatly; and the overlapping unit is adopted, so that the cut metal sheet materials neatly stack up automatically and are favorable for accelerated packaging and transportation. In addition, the invention also designs measures for protecting surfaces of the metal sheet materials at multiple positions, so that the surfaces of the metal sheet materials are not scratched or damaged in the process of cutting.

The invention discloses a closed cycloid precision gear reducer. The closed cycloid precision gear reducer comprises an input part, a pin wheel housing, an output part and a small-tooth-difference inside-gear reducing mechanism. Wheel pins used for being meshed with a cycloidal gear of the small-tooth-difference inside-gear reducing mechanism are arranged on the inner ring of the pin wheel housing in the circumferential direction. The inner ring of the pin wheel housing is provided with containing grooves which correspond to the wheel pins in a one-to-one mode and are used for containing the wheel pins. The wheel pins make double-line contact with the inner walls of the corresponding containing grooves. According to the closed cycloid precision gear reducer, the double-line contact characteristic exists between the wheel pins and the containing grooves in the pin wheel housing; as the wheel pins make double-line contact with the corresponding containing grooves in the tooth width direction, the bending strength is enhanced, and carrying capacity is improved; meanwhile, due to the increase of the number of contact lines, the achievement of the error leveling effect is facilitated, transmission accuracy can be improved, and then the requirements for machining errors and assembly errors can be lowered. Compared with an existing RV gear reducer, the return difference of the closed cycloid precision gear reducer is smaller; besides, the closed cycloid precision gear reducer is compact in structure, long in service life, simple in machining process and low in manufacturing cost.

A control method for automatic leveling system in automatic control technology field comprises steps of: automatically protruding transverse support legs in turn; automatically protruding vertical support legs to touchdown in turn; automatically lifting the vertical support legs to take off from ground in turn; stopping the vertical support legs; estimating a lowest leg according to alpha, beta angles in X, Y directions respectively, calculating leveling effect parameter; executing rough leveling if s>Psi1; executing accurate leveling if Psi2<=s<=Psi1; stopping the leveling if s F16M 3 / 00 G05D 3 / 10 2 7 3 2008 / 5 / 22 101280875 2008 / 10 / 8 000000000 Shanghai Jiao Tong University Shanghai 200240 Weng Xinhua Tang Junmao Kong Zuo Wu Changmao Gan Zhimei wangti lin wanggui zhong 31201 The Patent Agency of Shanghai University of Communications No.1954 Huashan Road, Shanghai 200030

The invention discloses a wind and solar storage combining power generation system smooth control method based on power generation power curves. Based on the predication power information of a wind power plant and a photovoltaic power station, a system power prediction curve is subjected to optimization, a system power generation power curve is obtained, according to the total power generation power value in the system power generation power curve, corresponding prediction values in a wind power plant power prediction curve and a photovoltaic power predication curve are processed, a wind power generation power curve, a photovoltaic power generation power curve and an energy storage charging-discharging power curve are obtained, subsystems are controlled to work according to the power curves, and under the premise that an energy storage charging state is kept at a reasonable level, power fluctuation is effectively output through a smooth system. The schedulability of the wind power plant and the photovoltaic power station is fully used, under the premise that fluctuation leveling effect is guaranteed, charging-discharging frequency of energy storage equipment is reduced, and the service life of the energy storage equipment is prolonged.

The invention relates to a production method of tipping base paper with high natural air permeability as well as cigarette paper. The production method of the tipping base cigarette paper with the high natural air permeability comprises a pulping step, a papermaking step and a calendaring step; in the pulping step, softwood pulp, eucalyptus pulp and Spain straw pulp are respectively pulped, the softwood pulp has the pulping concentration of 3.4-3.6 percent, the beating degree / wet weight of 66-680 SR / 8-11g, the eucalyptus pulp has the pulping concentration of 3.6-3.8 percent and the beating degree of 20-220 SR, the Spain straw pulp has the beating degree of 18-220 SR; and 40-60 percent of softwood pulp, 30-40 percent of eucalyptus pulp and 10-20 percent of Spain straw pulp which are well-pulped are proportioned. The invention has higher air permeability and obvious action of diluting mainstream smoke, can greatly decrease the production cost and improve the production efficiency without static electricity or laser printing, the favorable combination strength can satisfy the requirement of a high-speed printer, the base paper is smooth and fine, has good oil print leveling effect and is fully suitable for the production requirement of a gravure printing machine.

The invention provides a wear-leveling method and a wear-leveling device for a memory system and a non-volatile memory, wherein the non-volatile memory comprises a plurality of data blocks and a linked list which is formed by the plurality of data blocks. The wear-leveling method comprises the following steps: firstly, a step of shift operation, namely the plurality of data blocks are arranged in order according to time values respectively corresponding to the plurality of data blocks and according to the time order of the time values, so as to form the linked list; and secondly, a step of erasure judgment, namely judgment is made whether to erase the plurality of data blocks, and when the plurality of data blocks are erased, corresponding data blocks are selected for erasure according to the time order of the time values of the plurality of data blocks in the linked list. The wear-leveling method and the wear-leveling device can simultaneously give attention to the system efficiency and the wear-leveling effect while really reflecting the service life of the erasable blocks in a system.

The invention discloses a leather stretching and leveling device for leather product production and relates to the technical field of leather processing. The leather stretching and leveling device comprises a supporting rack, a leveling table for supporting leather is fixedly mounted on the supporting rack, two clamping mechanisms for clamping leather are symmetrically arranged on two sides of theleveling table, a lead screw I and a lead screw II which are coaxially fixed, opposite in thread rotating direction, are horizontally arranged in the supporting rack, thread bushing blocks in transmission connection to the clamping mechanisms are arranged on the lead screw I and the lead screw II in a threaded connecting sleeving manner, and the lower end of a leaning rod is higher than the bottom surface of a pressure plate. The pressure plate moves downward to compress the leather to the leveling table and the clamping mechanisms are driven by a lifting rack to pull the leather downward, sothat the leather supported by the leveling table is stretched and leveled effectively. A compression roller rolls the leather toward two sides in the process that the pressure plate moves downward, so that the leveling effect of the surface of the leather is improved greatly and the leather leveling efficiency is high.

Mechanisms for modeling system level effects of soft errors are provided. Mechanisms are provided for integrating device-level and component-level soft error rate (SER) analysis mechanisms with micro-architecture level performance analysis tools during a concept phase of the IC design to thereby generate a SER analysis tool. A first SER profile for the IC design is generated by applying the SER analysis tool to the IC design. At a later phase of the IC design, detailed information about SER vulnerabilities of logic and storage elements within the IC design are obtained and the first SER profile is refined based on the detailed information about SER vulnerabilities to thereby generate a second SER profile for the IC design. Modifications to the IC design are made at one or more phases of the IC design based on one of the first SER profile or the second SER profile.

The invention discloses an automatic leveling control system of a fire-fighting truck working platform, a fire-fighting truck and a leveling method. The automatic leveling control system comprises a control device, a horizontal angle sensor, an angle acceleration sensor and a leveling execution mechanism, wherein the horizontal angle sensor collects the inclination angle of the fire-fighting truck working platform relative to a horizontal plane and sends the inclination angle to the control device; the angle acceleration sensor collects the rotary angle acceleration of a crank arm and sends the rotary angle acceleration to the control device; the control device generates control signals according to the inclination angle of the fire-fighting truck working platform relative to the horizontal plane and the rotary angle acceleration of the crank arm and controls the leveling execution mechanism to finish the leveling operation of the fire-fighting truck working platform. According to the automatic leveling control system, the fire-fighting truck and the leveling method, the feedback of the angle acceleration is introduced, the feedback component of the angle acceleration is utilized for restraining a chattering phenomenon, two different control models are utilized for respectively controlling the automatic leveling of the working platform during lifting and falling processes, and a leveling cut-off region is arranged, so that the automatic leveling effect is enhanced.

In a liquid crystal display device small in the size and having a narrow frame, an alignment film can be coated by ink jet printing, by coating a rapidly drying peripheral alignment film 109 in the shape of a frame to a TFT substrate 100 having a display region having pixel electrode 107 and a peripheral region thereof by ink jet printing, and then coating a display region alignment film 108 drying slower but excellent in the leveling effect by ink jet printing. While the display region alignment film 108 dries slowly, since the peripheral alignment film 109 formed to the periphery functions as a stopper, the shape of the alignment film can be defined accurately, thereby enabling to prevent lowering of the adhesion of the seal member 20 under the effect of the alignment film. This can be applied also on the side of the counter substrate 200.

The invention discloses an application of an acid copper leveling agent. The molecular structural formula of the acid copper leveling agent is shown in the specification. In the formula, an anion X is Cl<-> or Br<->; R1 is O or S or N, and R2, R3 and R4 can be one of H, alkyl groups, alkenyl groups, aralkyl groups, heteroarylalkyl groups, substituted alkyl groups, substituted alkenyl groups, substituted aralkyl groups or substituted heteroarylalkyl groups. The acid copper leveling agent is used in adjustable surface morphology wafer electroplating. Novel acid copper leveling agent molecules having the advantages of good water solubility, colorlessness, non-toxicity and environmental protection are designed and developed, and are different from previous dye leveling agents, and the novel acid copper leveling molecules are compounded with a traditional leveling agent or other molecules having a leveling effect to form the acid copper leveling agent as a composite leveling agent in acid copper electroplating, so the effective control of the copper electroplating surface morphology is realized by blending the molecule concentration proportions of the composite leveling agent in a same chemical system in order to meet demands of different technologies.

The invention discloses a wind power plant composite energy storage capacity planning method based on goal decomposition and complementation and leveling of goal decomposition. The wind power plant composite energy storage capacity planning method based on goal decomposition and complementation and leveling of goal decomposition includes the following steps that firstly, according to medium characteristics of a composite energy storage system, a power target undergoes decomposition and leveling; secondly, a composite system charging and discharging strategy which can exert individual advantages and coordinate and optimize characteristics is built up; finally, a capacity optimizing configuration model where economical operation of the composite energy storage system is the objective function is set up and solving is carried out based on the PSO algorithm. With the wind power plant composite energy storage capacity planning method, equivalent operation cost, the leveling effect, the number of charging and discharging times and the like of the composite energy storage system can be optimized.

The invention discloses a stored energy power station optimizing control method with power prediction considered. The method includes the steps that the control step length of the progressive charge and discharge of a stored energy power station is determined, and a stored energy power station charge and discharge model is built based on the main control strategy and the auxiliary control strategy; a wind power plant stored energy system capacity optimizing target function is built with the optimized operation state of the stored energy power station state of charge (SOC) as the goal, and the charge and discharge power constraint condition and the SOC constraint condition are built; on the condition of meeting the control strategies of the stored energy power station charge and discharge model, solving and computing are conducted on the stored energy system capacity optimizing target function through the PSO algorithm, and the optimized charge and discharge power of the stored energy power station is acquired. The stored energy power station optimizing control method with power prediction considered has the advantages that the charge and discharge converting times of LiB can be reduced effectively on the premise of guaranteeing the operation state of SOC and the leveling effect of all media, the medium features of VRB can be fully played, and the control method is highly efficient and reliable, and certain theoretical value and actual application value are achieved.

A wrist assembly is provided for securing an end effector to a robotic arm. The wrist assembly comprises a first portion (205, 207) containing a slot for releasably engaging an end effector (231), and a second portion (203) which is attached to the first portion. The orientation of the first portion with respect to the second portion is adjustable to impart a leveling effect to the end effector.

The invention belongs to the field of building materials and particularly relates to a non-cement green mortar by using the steel slag as the cementing material and the fine aggregate and a preparation method thereof. The non-cement green mortar comprises the following components in weight part: 30-50 parts of steel slag powders, 50-70 parts of mineral powders, 200-350 parts of steel slag sands, 4-7 parts of activator, 1-4 parts of a water reducing agent, 3-6 parts of a dispersing agent, 0-0.4 parts of a retarder, 0.0002-0.001 part of a defoamer, and 30-40 parts of water. The non-cement green mortar is good in working performance, automatic in leveling effect, adjustable in setting time with the range of 0.5-8 hours, high in early-late strength, and excellent in impermeability and resistance to sulfate attack. The 7d breaking strength of the non-cement green mortar is larger than 8 MPa, and the compression strength thereof is larger than 40 MPa. The 28d breaking strength of the non-cement green mortar is larger than 9 MPa, and the compression strength thereof is larger than 50 MPa. Therefore, the non-cement green mortar can be widely applied to the engineering practice.

The invention discloses an acrylic emulsion with a self-wetting effect and an emulsion type pressure-sensitive adhesive containing the acrylic emulsion. The acrylic emulsion is prepared from a soft monomer, a hard monomer, a functional monomer, an internal crosslinking monomer, an external crosslinking monomer, a reactive emulsifier, a non-reactive anionic emulsifier, an initiator, a pH buffer agent and water. The acrylic emulsion and the emulsion type pressure-sensitive adhesive containing the emulsion have a good self-wetting effect, auxiliaries such as a wetting agent and a leveling agent do not need to be added, the coating leveling effect of the emulsion type pressure-sensitive adhesive is improved, and the pressure-sensitive adhesive tape prepared from the acrylic emulsion not only has high initial adhesion, high holding adhesion and high 180-degree peel strength, but also has good high-temperature resistance, and is suitable for large-scale production and application.

PVC furniture film gravure printing water-based ink consists of the following raw materials in parts by weight: 4 to 18 parts of pigment, 0.2 to 3 parts of fillers, 1 to 7 parts of a dispersing agent, 0.8 to 3.2 parts of a wetting agent, 0.08 to 0.24 part of a defoaming agent, 18 to 50 parts of film-forming resin, 0.2 to 0.3 part of a leveling agent, 8 to 30 parts of low molecule alcohol, 1 to 2 parts of a cosolvent and 10.78 to 43.2 parts of pure water. The bonding strength of the water-based ink on a PVC furniture film and a wear-resistant sheet can compare favorably with the bonding level of oily ink, and the transfer resistance on a plasticizer exceeds the level of the oily ink; furthermore, the printing effect of the water-based ink is more excellent that that of the oily ink in the market, and the leveling effect and the glossiness are more excellent than those of an oily system.

The invention discloses a multi-workstation-conveying tile printing device. A major bin is used for storing and providing major materials for manufacturing tiles, and at least three toner bins are used for storing and providing toner for manufacturing the tiles. Before production, corresponding toners are needed to prepare according to the level effect and the textures of the tiles by presetting color parameters; the toners are introduced into the toner bins respectively, and a control mechanism controls major material valves and toner valves to open or close sequentially respectively according to the prefabricated level effect and texture effect, so that the major materials and the toners form mixture having a certain level and texture effect in a distributor. Via subsequent procedures, the tiles conforming to the level effect, the texture and the color parameters can be obtained, and the internal textures in the tiles are shown.

The invention discloses a two-dimensional optical phased array. The two-dimensional optical phased array can be applied to multiple technical fields, such as laser radar, biomedical imaging, holographic imaging and ultra-high data rate communication. Array elements of the two-dimensional optical phased array are a set of point light sources with the same frequency, the phased array takes one of the array elements as the center of the circle, and the other array elements are evenly divided into a plurality of groups; each group of array elements and the center of the circle form a radial linear array, and the linear arrays have the same structures and are distributed at equiangular intervals in the circumferential direction. The structure of the two-dimensional optical phased array has the characteristics of a circular shape, equiangular intervals, high symmetry, compact spatial distribution of the array elements and the like, and therefore, the two-dimensional optical phased array has the advantages of low in processing difficulty, strong in inhibitive capability of grating lobes, large in two-dimensional scanning range and the like; besides, based on a non-uniform array element distribution grating lobe inhibiting technique, the phases of the array elements of the phased array are controlled so as to achieve beam formation and imaging, and the grating lobes and a multi-level effect can be effectively inhibited; in addition, single beam formation is achieved, and meanwhile the beam scanning resolution is high.

The invention relates to a heavy-duty isothermal forging hydraulic press, which comprises an upper transverse beam, a lower transverse beam, upright posts, a main cylinder, side cylinders and a slide block, wherein an upper baseplate is fixed on the lower plane of the slide block; and a movable workbench is arranged on the lower transverse beam. The heavy-duty isothermal forging hydraulic press is characterized in that the upper transverse beam and the lower transverse beam form a combined beam body structure; leveling cylinders are fixed on the four corners of the upper end of the upper transverse beam and the upper end of the lower transverse beam; each leveling cylinder is provided with an independent leveling control system; an upper knock-out device is arranged on the slide block; movable workbench positioning mechanisms are arranged on the lower part of the movable workbench body and in the lower transverse beam; and the movable workbench body is further provided with a movable workbench clamping device. The heavy-duty isothermal forging hydraulic press is characterized in that a combined transverse beam is light in weight and is convenient to transport and produce, and the manufacturing cost can be reduced; a leveling effect is achieved via the leveling cylinders, the leveling response time is shortened, and energy is saved greatly; through the upper knock-out device, successful demolding of workpieces can be realized, and the workpiece forging and pressing quality is ensured; and accurate positioning and stable running of a press workbench can be realized, and the production requirement of forging equipment for heavy-duty aviation forgings is met.

The invention discloses a low-viscosity environmental-friendly UV / moisture dual-curing three-proofing adhesive and a preparation method thereof. The low-viscosity environmental-friendly UV / moisture dual-curing three-proofing adhesive is composed of the following raw materials in parts by weight: 30-50 parts of self-made low-viscosity moisture-curable acrylate, 10-30 parts of self-made low-viscosity bifunctional polyurethane acrylate, 30-50 parts of acrylic reactive diluents, 3-8 parts of a photoinitiator, 0.05-0.2 part of a polymerization inhibitor and 1-3 parts of a silane coupling agent. Thethree-proofing adhesive provided by the invention has the viscosity of less than 50mPa.s, is easy to spray, excellent in leveling effect and excellent in toughness, and reaches the adhesion strengthof 5B. Moreover, in an area with less ultraviolet light, the low-viscosity environmental-friendly UV / moisture dual-curing three-proofing adhesive disclosed by the invention has lower viscosity, does not have any volatile solvent, and is high in curing speed, excellent in surface drying, excellent in toughness, high in adhesion reliability and wide in application range.

Provided are a method and apparatus for wear-leveling of a nonvolatile data storage device, whereby a wear-leveling effect is maximized by storing an age value indicating a write time in each data unit of the nonvolatile data storage device and detecting a static data area based on age values. The method includes storing an age value indicating a write time in each unit assigned to write data therein, reading an age value stored in a unit, and determining a static data area based on the read age value. Accordingly, a static data area can be correctly detected without additional overhead, and a wear-leveling effect of the entire storage device can be increased by moving data to and from the static data area, thereby extending the lifespan of the storage device.

The invention discloses a ground leveling vehicle for municipal construction. The ground leveling vehicle comprises a vehicle body. An upper limit plate and a lower limit plate are fixedly horizontally installed in the vehicle body. A water collection sleeve and a water tank communicating with the water collection sleeve are fixedly vertically installed on the vehicle body. A check valve II is installed on a water inlet tube. Lower connecting rods are fixedly installed on the lower sides of shaft sleeves. Push rods are hinged to the lower ends of the lower connecting rods. Stamping boards arehorizontally fixedly installed at the lower ends of the push rods. The side wall of the vehicle body is horizontally rotationally provided with a driving shaft. Walking wheels are sleeved and fixed onthe surface of the driving shaft. According to the invention, when a vehicle body walks, a crankshaft is driven to rotate to realize the upward and downward reciprocating motion of the stamping boards, thereby achieving repeated stamping on the ground, the ground leveling effect is good, the leveling area is easy to adjust, a piston head reciprocates in the water collection sleeve, so that waterspray discs intermittently spray water, the effects of dust reduction and dust removal are achieved, and a wide range of dust spread in the ground leveling process is avoided.