51results about How to "Curb recession" patented technology

The invention discloses a grain refinement and modification master alloy for aluminum and an aluminum alloy, which comprises the following components by weight percentage: 3.0 to 10.0 percent of titanium, 1.0 to 3.0 percent of boron, 0.5 to 5.0 percent of strontium, 0.5 to 2.0 percent of cerium-enriched rare earth, and the balance of aluminum. The preparation method for the master alloy comprises the following steps: weighting potassium fluotitanate, potassium fluoborate, a mixed rare earth ingot, an alloy, and a pure aluminum ingot in proportion; drying the potassium fluotitanate and the potassium fluoborate; heating and melting the aluminum ingot and the aluminum rare earth ingot, adding the mixture of the potassium fluotitanate and the potassium fluoborate, and stirring until the melted mass is completely reacted; adding a Al-Sr master alloy, stirring, and performing heat preservation and slagging off; adding hexachloroethane and evenly stirring; and standing, performing heat preservation for 20 to 30 minutes, casting into an ingot and then extruding into a wire. The master alloy can be well combined with an interface of an aluminum matrix; the particle phase is evenly distributed; the grain size of the refinement phase is small; the activated Sr is enough to ensure the following modification; the conglobation of the refinement phase is effectively reduced, and the degradation is inhibited; and the preparation process is low in cost.

A flat panel speaker according to an embodiment of the disclosure includes a flat panel and a plurality of vibrators that are disposed on a back surface of the flat panel. The plurality of vibrators are disposed to avoid a location that most easily vibrates in an entire range of audio frequencies when vibration is generated in the flat panel by the plurality of vibrators. A large stationary wave with respect to the flat panel therefore does not easily occur.

The invention relates to a desert greening soil module, and a preparation and construction method thereof. The soil module preparation method comprises the following steps: step 1, respectively preparing components according to weight ratios, wherein the components comprise 70-80% of soil (soil for use), 7-15% of an organic fertilizer, 0.5-2% of a soil micro-state active agent, 0.2-1.5% of a soilwater-retaining agent and 9-18.5% of water; step 2, uniformly stirring the components prepared in the step 1, adding water, then carrying out mixing to obtain mortar, carrying out mixing by stirring according to a soil water content ratio of 13-18.5%; step 3, putting the mortar into a mould, and pressing the mortar to form a soil module, wherein a column-shaped body is arranged in the mould, and avertically upward guide pipe hole is formed in the bottom of the soil module when the soil module is formed by pressing; and step 4, preparing a biodegradable conduit, and adding a rooting agent intothe conduit, wherein the rooting agent is a mixture of a soil water-retaining agent and rooting powder.

An ink-jet printer includes an ink-jet head which includes a nozzle, a main liquid droplet trapping section 30 which traps only a main liquid droplet, and a cover member which surrounds a space in which a satellite liquid droplet which is jetted from a nozzle at the same time when the main liquid droplet is jetted, flies. It is possible to suppress a decline in an accuracy of a landing position of the satellite liquid droplet, caused due to a change in a trajectory of flying of the satellite liquid droplet due to an effect of a flow of air in the space. Accordingly, it is possible to provide a liquid droplet jetting apparatus which is capable of controlling accurately the landing position of a very small satellite liquid droplet.

In a printing apparatus, ink mist resulting from ink discharge is suctioned by a fan and moves along a flow path (recovery path) formed by alternating ribs in a recovery unit, and the ribs have a width becoming increasingly smaller as a downstream side of the flow path (recovery path) is approached.

A numerical control device according to the present invention is for a machine tool which causes a tool to move along a movement path decided according to a machining program, and includes: a limit setting storage unit in which limit values of a plurality of parameter related to movement of the tool are set; a limit velocity calculation unit which calculates a plurality of limit velocities which are movement velocities of the tool, which respectively correspond to the limit values of the plurality of parameters at each position of the movement path; a feedrate determination unit which defines a minimum value among an ideal velocity of the tool and the plurality of limit velocities at each position on the movement path as a feedrate of the tool at each position on the movement path; and an adjustment effect calculation unit which calculates variation in movement time required in order to cause the tool to move an entirety of the movement path at the feedrate, in a case of changing the limit value of the parameter.

The invention discloses a method for recovering and preserving a wild small population of neolitsea sericea serving as a rare plant. The method comprises the steps: selecting a neolitsea sericea community remained on a coastal mountainous region in the east of Zhejiang to survey each wood on a typical sample plot; calculating importance values and age structures of species by using a statistical sampling method and a population statistical method; creating an optimal adaptable rehabilitation environment according to the dynamic adaption characteristic of the neolitsea sericea on different landsite types and at community development stages for the environment; optimizing the age structure, space distribution, species composition and land site condition of a popularization by using technical means such as mature tree rejuvenation, young seedling transplanting and updating, interfering wood thinning for tending and forest stand management so as to remarkably promote the survival and growth of small population of the neolitsea sericea, restore the structure of the small population to the maximum extent on the premise of finitely protecting plants and meet a production demand. By usingthe method, the growth vitality and stability of the small population of the rare plant are improved; and the method has a wide application prospect in preservation and ecological rehabilitation of the small population of the rare plant.

An image generation system according to an embodiment includes an acquisition unit, a first processing unit, and a second processing unit. The acquisition unit acquires first image data. The first processing unit generates second image data by subjecting the first image data, acquired by the acquisition unit, to a predetermined type of image processing. The second processing unit performs recognition processing on the second image data. The first processing unit and the second processing unit perform their respective processing in synchronization with each other without depending on an instruction from a processor.

A vehicle 2 includes a power receiving unit 11 which receives electrical power sent from a power supply unit 4; a relative position acquisition unit 21 which acquires a relative position of the power receiving unit 11 relative to the power supply unit 4; and an alignment aid unit 22 which aids in alignment of the power receiving unit 11 relative to the power supply unit 4, by notifying to the driver of information relative to displacement of the power receiving unit 11 relative to the power supply unit 4, based on the relative position acquired by the relative position acquisition unit 21. The alignment aid unit 22 is switchable between a first notification which notifies the information relative to displacement by way of an image display device 12, and a second notification which notifies the information relative to displacement by way of a vehicle information presenting device 14.