598results about How to "Avoid intensity" patented technology

The invention relates to an aerogel composite material, in particular to a glass fiber reinforced silicon dioxide aerogel composite material and a preparation method thereof. The excellent properties of aerogel are maintained, the mechanical properties of the aerogel are reinforced, and the glass fiber reinforced silicon dioxide aerogel composite material has good integrity and certain strength. The glass fiber reinforced silicon dioxide aerogel composite material is prepared by compounding glass fiber and silicon dioxide aerogel, wherein the glass fiber is a reinforcement, and the content ofthe glass fiber accounts for 1-15% total mass of a sample; the silicon dioxide aerogel is a matrix, tetraethoxysilane is a silicon source material, and methyltrimethoxysilane or methyltriethoxysilaneis used as a silicon source co-precursor. The preparation method comprises the following steps of: firstly, pretreating the glass fiber; then, preparing glass fiber reinforced silicon dioxide composite wet gel; and finally, aging, secondarily modifying and drying the silicon dioxide composite wet gel.

The present invention discloses building waste treating and reusing process, which includes the following steps: classifying building wastes into waste concrete, waste stone material, waste ceramic, waste sintered brick and waste lime-sand brick; crushing separately into coarse grains and eliminating metal, timber and other impurity; milling into 5 mm below regenerated fine aggregate; sorting 0.15 mm below high quality fine aggregate and milling into regenerated fine powder material of 250-600 sq m/kg specific surface area; and preparing mortar, concrete, asphalt concrete and other building material with the regenerated fine aggregate and the regenerated fine powder.

A SiC semiconductor element includes: a SiC substrate which has a principal surface tilted with respect to a (0001) Si plane; a SiC layer arranged on the principal surface of the substrate; a trench arranged in the SiC layer and having a bottom, a sidewall, and an upper corner region located between the sidewall and the upper surface of the SiC layer; a gate insulating film arranged on at least a part of the sidewall and on at least a part of the upper corner region of the trench and on at least a part of the upper surface of the SiC layer; and a gate electrode arranged on the gate insulating film. The upper corner region has a different surface from the upper surface of the SiC layer and from a surface that defines the sidewall. The gate electrode contacts with both of a first portion of the gate insulating film located on the upper corner region and a second portion of the gate insulating film located on the sidewall. The first portion of the gate insulating film is thicker than a third portion of the gate insulating film located on the upper surface of the SiC layer. And an end portion of the gate electrode is located on the upper corner region.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a locking cover (1) and an inner pot (2). Lifting handles (3) extending towards the outer side in the radial direction are arranged on the circumferential side of the inner pot (2), and an avoiding gap (4) for allowing the lifting handles (3) to extend out is formed in the locking cover (1). By means of the electric pressure cooker, the problem that in the prior art, as a lifting handle structure of an electric pressure cooker is that the gaps are formed in an outer pot to avoid a handle of an inner pot, the strength of the outer pot is influenced can be solved.

The invention belongs to the preparation technology of a continuous fiber reinforced ceramic based composite, and relates to a preparation method of a continuous oxide fiber reinforced oxide ceramic based composite. The technology comprises the steps that an organic ceramic precursor solution is utilized to serve as solvent to prepare slurry with ceramic powder, the slurry is smeared on the surface of oxide fiber fabric to prepare oxide fiber prepreg, the technological processes of laminating, mold pressing and sintering are conducted on the prepreg, a low-porosity ceramic based composite preform is obtained, the repeated processes of soaking and splitting are conducted by adopting an organic ceramic precursor, and the continuous fiber reinforced ceramic based composite with the ideal density is obtained. According to the preparation method of the continuous oxide fiber reinforced oxide ceramic based composite, the organic ceramic precursor is adopted to serve as the solvent to prepare the ceramic slurry, the organic ceramic precursor can play a role of bonder for bonding the ceramic powder, low-temperature inorganic characteristics of the organic ceramic precursor can be utilized, fiber is protected against thermal damage caused by high temperature in the composite preparation process, and the composite strength is improved.

A memory cell unit including: a semiconductor substrate having a source diffusion layer in at least a part of a surface thereof; a column-shaped semiconductor layer provided on the semiconductor substrate, and having a drain diffusion layer provided in an uppermost portion thereof and a first low concentration impurity diffusion layer provided in an entire bottom portion thereof; a memory cell arrangement which includes a plurality of memory cells provided in a peripheral wall of the column-shaped semiconductor layer and connected in series perpendicularly to the substrate, the memory cells each having a charge storage layer and a control gate; a second impurity diffusion layer provided at a lower end of the memory cell arrangement; and a selection transistor having a gate electrode provided around the peripheral wall of the column-shaped semiconductor layer and connecting the second impurity diffusion layer and the first impurity diffusion layer; wherein the first impurity diffusion layer extends into a part of a channel region provided in the peripheral wall of the column-shaped semiconductor layer in opposed relation to the gate electrode of the selection transistor.

A remote sensing system includes a transmitter for generating multiple beams of light; a combiner for combining the multiple beams of light and directing the combined multiple beams toward a target of multiple gases; and a receiver for receiving the combined multiple beams of light from the target. The first and second transmitted beams of light include, respectively, first and second sets of multiple distinct wavelengths that are simultaneously transmitted toward the target. The receiver receives the multiple distinct wavelengths, and simultaneously detects an intensity of each received wavelength. The first set of multiple distinct wavelengths is selected based on absorption characteristics of a first species of gas, and the second set of multiple distinct wavelengths is selected based on absorption characteristics of a second species of gas. The transmitter includes first and second mode-locked based lasers for generating, respectively, the first and second sets of distinct multiple wavelengths. The receiver includes first and second pixel arrays for detecting, respectively, the first and second sets of distinct multiple wavelengths.

The invention relates to a multifunctional physical simulation test system for coal engineering. The system comprises a test chamber, a model forming subsystem, a hydraulic loading control subsystem, a test subsystem and a gas pumping and injecting subsystem, wherein the test chamber comprises a loading frame and a counterforce cover detachably connected to one end of the loading frame; the loading frame and the counterforce cover are coaxially mounted on a base; a guide rail is arranged on the base in an axial direction of the loading frame; and support seats capable of sliding along the guide rail are mounted on the guide rail and are mounted at bottoms of the loading frame and the counterforce cover respectively; a track conveying subsystem for conveying models is detachably connected between the model forming subsystem and the test chamber. The invention further provides a coal model test method. According to the multifunctional physical simulation test system for coal engineering and the coal model test method, operation such as drilling, joint forming, fracturing, coal and gas outburst, excavation and support of underground construction and the like under actions of crustal stress, gas pressure and comprehensive multiple factors can be simulated, and an experimental verification means is provided for coal and gas outburst related occurrence mechanism, prediction and control.

Decrease in optical near-field intensity is prevented when an light propagating medium made of a high refractive index material, such as a waveguide or a lens, is combined with a scatterer for producing optical near-field. Near the optical near-field generating element, a second light propagating medium is disposed in contact with a first light propagating medium of a high refractive index material, such as a waveguide or a lens. The refractive index of the second light propagating medium is made smaller than the refractive index of the first light propagating medium.

To provide a continuous oscillation laser apparatus, and a manufacturing method of a semiconductor device using the continuous oscillation laser apparatus, which can enhance processing efficiency. A laser apparatus according to the present invention includes: a laser oscillation apparatus; a unit for rotating an object to be processed; a unit for moving the object to be processed toward a center of the rotation or toward an outside from the center; and an optical system for processing a laser light outputted from the laser oscillation apparatus and irradiating the processed laser light to a definite region in a moving range of the object to be processed, in which, while the object to be processed is rotated, the object to be processed is moved toward the center of the rotation or toward the outside from the center to move a position where the definite region and the object to be processed overlap.

The invention discloses an anchoring structure for a liquid-injection corrosion-resistant anchor rod or anchor cable and a construction method thereof. The anchoring structure comprises a resin end-anchored anchor rod or anchor cable body arranged in an anchor hole, wherein a grouting-stop plug is also arranged at the opening of the anchor hole; an anchor rod head or an anchor cable head is exposed out of the anchor hole from the plug hole of the grouting-stop plug; the grouting-stop plug is also provided with two plug holes; a liquid injection nozzle is inserted into one plug hole and chemical grout is filled into the anchor hole through the liquid injection nozzle; an exhaust pipe with two open ends is inserted into the other plug hole; a check-valve ball and a return spring are arranged in the liquid injection nozzle; a locking slot connected with grouting equipment is reserved on the peripheral surface of the liquid injection nozzle; the length of the exhaust pipe is equivalent to that of the end-anchored anchor rod or anchor cable; and exhaust holes are reserved on the peripheral surface of the exhaust pipe close to the bottom of a drilled hole. The anchoring structure solves the problem of sealing water and preventing corrosion of anchor rod holes at the positions such as an arch part and the like, not only can serve as permanent support, but also can serve as temporary support.

A method for controlling a high-frequency radiator includes the steps of: (a) applying a high-frequency radiation through the solid-state oscillator and the antenna; (b) sensing part of the high-frequency radiation returned from the antenna to the solid-state oscillator; (c) adjusting radiation/propagation conditions for the high-frequency radiation on the basis of the sensed results in the step (b), the high-frequency radiation propagating from the solid-state oscillator to the antenna; and (d) after the step (c), applying the high-frequency radiation through the solid-state oscillator and the antenna to a target object. In the step (c), the oscillation frequency of the solid-state oscillator, the power of the high-frequency radiation applied by the solid-state oscillator, the power supply voltage supplied to the solid-state oscillator, the impedance match between the output impedance of the solid-state oscillator and the impedance of the antenna, or any other condition is changed.

The invention relates to putty powder, in particular to functional diatomite putty powder and a preparation method thereof, wherein the putty powder includes in percent by weight: 10-50% of high-temperature activated diatomite, 5-30% of an inorganic binder, 30-70% of an inorganic filler, 0.01-2% of a functional aid, 0.1-5% of an inorganic pigment, 0.5-5% of an organic binder, and 0.5-5% of an organic aid. The functional diatomite putty powder meets the related standard requirements of putty powder and diatomite, and has qualified constructability and functionality, namely having standard-meeting properties such as humidity regulation, formaldehyde clarifying performance, long duration of formaldehyde purifying performance, mold-proof performance, and mold durability.

An image display includes the following components. A display panel has a plurality of pixels arrayed in a first direction and a second direction intersecting the first direction. A light source emits light toward the display panel. A polarization-axis control unit is disposed between the display panel and the light source. The polarization-axis control unit separates the light emitted from the light source into light having a first polarization axis and light having a second polarization axis different from the first polarization axis. An optical element is arranged between the display panel and the polarization-axis control unit. The optical element allows the light emitted from the light source to travel in a direction substantially orthogonal to the first direction. The polarization-axis control unit includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, a plurality of first electrodes extending in the first direction arranged at a predetermined pitch in the second direction on the first substrate, and a second electrode on the second substrate. The first electrodes each having a connecting part and a plurality of strip electrode segments extending from the connecting part are arranged in such a manner that the respective connecting parts are arranged in opposite end portions of the first substrate and the strip electrode segments are alternately arranged over a surface of the first substrate. The second electrode is superposed over the first electrodes in a region corresponding to a pixel array area of the display panel.

The invention relates to a method for removing potassium nitrate impurity ions on line in chemical tempering production. The method implements the invention through the following steps in the mass chemical tempering operation: (1) the concentration of sodium, calcium and magnesium ions in molten potassium nitrate in a chemical tempering furnace is detected; when the glass stress and strength are lower than set values after a certain amount of chemical tempering, the tempering is stopped, and the concentration of the sodium, calcium and magnesium ions in the molten potassium nitrate in the furnace is recorded; (2) an appropriate amount of treated reagent (potassium pyroantimonate) is added in the potassium nitrate of which the tempering is stopped and simultaneously is stirred, so that the reaction is uniform and full; (3) the molten potassium nitrate obtained in the step (2) stands at constant temperature, so that the molten potassium nitrate reacts, is deposited and clarified thoroughly; and (4) after the molten potassium nitrate obtained in step (3) is fully clarified, the chemical tempering is re-started. The method can reduce the replacing frequency of the chemically tempered potassium nitrate, reduces the cost, improves the production efficiency, is simple in process and is convenient to implement.

The invention discloses a mid-infrared laser measurement system and method for engine combustion process monitoring. The measurement system comprises a laser device and detectors, the laser device cantransmit mid-infrared laser within a specific wavelength range, and the mid-infrared laser is absorbed by engine combustion flames. Particularly, the laser transmitted by the laser device is dividedinto two beams by a beam splitter, one beam of laser passes a laser calibration device and is measured by the first detector and used for calibrating wavelengths generated by the laser device, the other beam of laser is absorbed by carbon dioxide gas generated by combustion, measured by the second detector and acquired by a data acquisition system, and concentration information of carbon dioxide can be acquired by processing, so that the combustion efficiency of an engine is acquired. According to the system, background absorption interference of the carbon dioxide in an environment is omittedwithin the selected laser wavelength range, the carbon dioxide is obviously absorbed in the high-temperature environment, interference of other combustion products such as water molecules and intermediates is omitted, and high measurement accuracy of the combustion efficiency of the engine can be achieved.

The invention discloses a portable spliced guide rail, a butt joint method and a work fixture. The spliced guide rail is divided into a base section part, an extension section and a tail section which are mutually in butt joint along a cross section direction, wherein butt joint faces are connected in a mutual intersection manner, so that the defects of poor butt-joint stability, low connection strength and difficult in precision guarantee on the same horizontal plane are avoided. On the butt joint faces of a guide rail body, two pairs of positioning pins and positioning holes are adopted, sothat the positioning is accurate and the positional connection is reliable; guide posts and guide faces are mutually matched so that the splicing accuracy is enhanced; and auxiliary dowel shafts are used for fixed connection so that the structural stability and the integrity of the spliced guide rail are ensured, and the specially designed work fixture ensures that the butt joint process of the guide rail is more accurate and easier to operate. The entire spliced guide rail has a simple structure, is convenient for butt joint, and can be dismounted and assembled without professional personnel, and the extended guide rail is beneficial to enlargement of an applicable range for product processing and is suitable for popularization and application in various industries and fields.

The invention discloses belite cement and a preparation method thereof. Belite cement clinker comprises mineral components in percentage by weight as follows: 40%-70% of dicalcium silicate, 10%-40% of tricalcium silicate, 6%-15% of tetra calcium aluminoferrite, 1%-10% of anhydrous calcium sulphoaluminate, 0%-8% of tricalcium aluminate and 0%-2% of calcium sulfate. A small number of anhydrous calcium sulphoaluminate minerals are introduced into the belite cement clinker, and on the basis that advantages of low calcium, low energy consumption, low requirements for raw material taste and the like of belite cement are not changed, the early strength of the belite cement is substantially improved and approaches that of ordinary cement; and the belite cement has a remarkable effect of resource and energy saving with utilization of low-grade limestone and industrial residue resources.

The invention relates to hardened and tempered low-temperature steel, which comprises the following chemical ingredients by weight percentage: 0.040 percent to 0.080 percent of C, at most 0.15 percent of Si, 1.20 percent to 1.60 percent of Mn, at most 0.015 percent of P, at most 0.003 percent of S, at most 0.010 percent of Als, 0.05 percent to 0.35 percent of Cu, 0.10 to 0.40 percent of Ni, 0.10 percent to 0.30 percent of Mo, 0.007 percent to 0.012 percent of Ti, 0.020 percent to 0.050 percent of V, 0.0055 percent to 0.0085 percent of N, 0.0008 percent to 0.0020 percent of B and 0.001 percentto 0.004 percent of Ca. In addition, the element contents meet the following relationship that: Mn/C is greater than or equal to 15 but smaller than or equal to 30; the equivalent weight of Ni is greater than or equal to 0.25 percent; Ti/N is between 1.0 and 2.0; B is greater than 0.714(N-0.292Ti-0.518Als); Ni/Cu is greater than or equal to 1.0; Ca/S is between 1.0 and 3.0, and in addition, the Ca(percentage)*S(percentage)0.28 is greater than or equal to 1.0*10<-4> but smaller than or equal to 1.5*10<-3>; and the rest are iron and unavoidable impurities. The steel is manufactured through combining processes of recrystallization control milling, on-line direct quenching, tempering heat treatment, the excellent low-temperature performance can be obtained, and in addition, a steel plate can bear large-line energy welding and is particularly suitable for being used for making liquefied petroleum gas (LPG) low-temperature storage tanks.

The invention provides a high-strength sand prevention casing pipe with high perpetration rate. The casing pipe comprises a pipe body suitable for being inserted into the periphery of well wall. The pipe body comprises aggregate particles, a resin film used for coating the surface of the aggregate particles and polythiol curing agent used for solidifying the resin film, wherein the resin film refers to epoxy modified organic silicon resin with an epoxy value of 0.23-0.56 eq/100g. A weight percentage of the resin film and the aggregate particles is 0.5-10: 100 and the weight percentage of the polythiol curing agent and the resin film is 15-20: 100. The casing pipe has the advantages of being high in strength, permeating oil effectively, preventing water effectively and being capable of being suitable for the sand prevention casing pipe of the periphery of the well wall.

An absolute rotary encoder comprises a rotor having a bore passing through the center thereof to receive a shaft therein and arranged rotatably about the shaft and opposite a stator. Tracks are arranged concentrically on the rotor to form a track group. A transmitting winding group is arranged on the stator as capable of flux coupling with the track group. A receiving winding group is arranged on the stator as capable of flux coupling with the track group. Each track in the track group comprises a flux coupling winding that includes linear arc portions having first and second radii and arranged alternately on the rotor and has the shape of a ring continuous about the shaft. At least two tracks in the track group have the linear arc portions different in number from each other.

The invention discloses a piezoelectric elastic wave deicing method. A signal generator generates two paths of alternating voltage which have phi/2 phase difference and are same in frequency, the two paths of alternating voltage are respectively amplified by two power amplifiers, two piezoelectric units which are attached on the inner surface of an aircraft skin are used for exciting two piezoelectric vibrators in different vibration type on the skin, i.e. the vibrations of the first vibration type of piezoelectric vibrators and the second vibration type of piezoelectric vibrators, under the excitation of the same driving frequency, the first vibration type of piezoelectric vibrators and the second vibration type of piezoelectric vibrators generate two vibration modes, i.e. longitudinal vibration or bending vibration, the two vibration modes are stacked on elastic waves formed on the aircraft skin, the elastic waves are similar to traveling waves, the shearing force is generated on the attaching interface of an ice layer, the ice layer is forced to strip from the skin under the action of the shearing force, and then the aircraft surface is deiced. The piezoelectric elastic wave deicing method has the advantages that the energy consumption is low, the power consumption is low, the piezoelectric elastic wave deicing method is compatible with an aircraft avionics system and does not require single power supplying, and the continuous operation is realized.