Abstract: Disclosed is a terahertz laser device based on phonon vibration excitation, including a resonant cavity composed of a hollow waveguide made of a composite film and optical lenses at both ends of the waveguide, where M represents nano-metal particles. A zinc oxide mesomorphic microsphere is used herein as a source, symmetric stretching vibration of nanosheets on the zinc oxide microsphere is excited and induced by a laser and is transmitted through elastic and electric coupling among the nanosheets, and a terahertz wave with a frequency of 0.

Abstract: A sensing mechanism of a two-dimensional airfoil model, which includes pressure sensor groups, multiple first tubes, the second tube, and a cavity. The pressure sensor groups are vertically fixed to mounting holes in the surface of the two-dimensional airfoil model. The pressure measurement surface of each pressure sensor is vertical to the surface of the two-dimensional airfoil model. Multiple mounting holes are opened in and vertical to the surface of the two-dimensional airfoil model. The cavity is fixed to the interior of the two-dimensional airfoil model. The reference pressure end of each pressure sensor is connected to the cavity through the first tube, the multiple pressure sensors of the pressure sensor groups are in one-to-one correspondence with the multiple first tubes. The cavity is connected with the first end of the second tube. The second end of the second tube is located in the air outside the two-dimensional airfoil model.

Abstract: The invention discloses a fixed bed counter-current regeneration device for ion exchange resin and the method of use, relates to the field of ion exchange resin regeneration. The device comprises a cyclone separator, a regeneration reactor, a fully mixed resin reactor, a desorption solution storage tank, and a regenerant storage tank, wherein the cyclone separator is placed on top of the regeneration reactor, the upper part of the cyclone separator is connected to the fully mixed resin reactor.

Abstract: A preparation method of a bionic adhesive material with a tip-expanded microstructural array includes the following steps: machining through-holes on a metal sheet; modifying morphology of a through-hole by electroplating, using the metal sheet in step 1 as an electroplating cathode, and arranging the electroplating cathode and an electroplating anode in parallel to prepare a hyperboloid-like through-hole array assembly, fitting a lower surface of the hyperboloid-like through-hole array assembly tightly to an upper surface of a substrate assembly to prepare a through-hole assembly of a mold; and filling the mold assembly with a polymer, curing, and demolding to obtain the adhesive material with the tip-expanded microstructural array.

Abstract: An anti-rollover apparatus and control method for heavy-duty vehicles with a pneumatic brake system includes an anti-yaw module, an anti-roll module, an electronic control unit (ECU) (10), a yaw velocity sensor (12), and a vehicle roll angle sensor (18). The ECU (10) controls solenoid valves (4, 9, 11, 19, and 24) to achieve braking of part of wheels to obtain anti-yaw torques and improve the yaw stability of the heavy-duty vehicles. The ECU (10) controls gas switch valves (21 and 22) to spray high-pressure gases recovered in brake chambers (1, 13, 16, and 26) out, anti-roll torques are obtained through the jet reactive force, and the roll stability of the heavy-duty vehicles is improved.

Abstract: An integrated molding device suitable for the bending and hemming of a flat sheet, comprising a stand, a worktable, a slider, and a turning beam. The stand comprises a frame structure composed of an upper cross beam, a lower cross beam, and columns on both sides, two ends of the slider are connected to the columns on both sides by means of a pair of sliding pairs A respectively, and the clutching of a bending die is achieved by means of the linear movement of the sliding pairs A; the worktable is fixed on the lower cross beam, and the clutching of a pressing die is achieved by means of the linear movement of the sliding pairs A; two ends of a swing frame are connected to the columns on both sides by means of one connecting block respectively, the connecting block and the columns are connected therebetween by means of a pair of rotating pairs B, and the connecting block and the swing frame are connected therebetween by means of a pair of sliding pairs C.

Abstract: The present invention provides a method for promoting the growth and preservation quality of Agaricus bisporus, and belongs to the technical field of cultivation and preservation of edible fungi. In the present invention, the methyl jasmonate solution is sprayed onto the surface of Agaricus bisporus at a concentration of 10-200 ?mol/L when the Agaricus bisporus grows to the mushroom bud stage, which can accelerate the growth and development of the Agaricus bisporus, improve the post-harvest preservation quality of the Agaricus bisporus, and prolong the shelf life thereof, then improving the yield and commercial value of the Agaricus bisporus. The present invention provides a new method for increase in both production and income and post-harvest preservation of Agaricus bisporus, can be applied to large-scale industrial production of Agaricus bisporus, and has important economic benefits and application promotion value.

Abstract: Disclosed is an intelligent frequency-shift anti-interference autonomous communication method based on electromagnetic environment learning, applied to an intelligent frequency-shift anti-interference autonomous communication system based on electromagnetic environment learning. The method comprises a communication link establishing process and an intelligent frequency-shift anti-interference process in the communication process. In the communication link establishing process, a communication initiator initiates communication to a communication responder, and the communication initiator and the communication responder perform frequency point matching, and finally negotiate to establish a communication connection.

Abstract: Implementations herein relate to a method for preparing organic-pollution-resistant ion exchange resins and application thereof. The method includes adding modified inorganic particles to prepare novel ion exchange resins containing inorganic particles modified by a parcel modifier. A weight ratio between the monomer of the ion exchange resins and the modified inorganic particles is about 0.1% to 30%. The method may increase moisture content of the resins 3 to 30% such as to improve the structures of the resins, and therefore increase the regeneration efficiency 0.4 to 70%, as compared to conventions resins. The method improves resistance of resins to organic pollution, increases regeneration efficiency, and extends service life of the resins. In the process of water treatment, the ion exchange resin of the implementations may be regenerated with long-term stability. In addition to securing the water treatment efficiency, the method may avoid frequent replacement operations and lower the costs.

Abstract: A method for preparing a Fenton-like catalytic material with dual reaction centers includes the following steps: (1) placing a nitrogen-containing compound in a muffle furnace for calcination, then dissolving the product in deionized water to form a suspension solution; (2) dissolving aluminum nitrate nonahydrate, copper nitrate trihydrate and glucose in deionized water to form a solution; (3) adding the suspension solution in a dropwise manner to the solution, then performing a closed hydrothermal reaction, washing with water, centrifuging and drying to obtain a solid; and (4) placing the prepared solid in a muffle furnace for calcination to obtain the Fenton-like catalytic material. The catalytic material presents a complete ball-flower shaped mesoporous structure, has a large specific surface area, and can expose more catalytic active sites, so that H2O2 is reduced at the electron-rich center as much as possible to generate hydroxyl radicals during the reaction.

Abstract: The present invention relates to a dye-salt separation membrane and a preparation method thereof. The method includes the following steps: firstly pouring an aqueous phase solution containing tannic acid and anhydrous piperazine on a surface of a polysulfone-based ultrafiltration base membrane at a mass ratio of the tannic acid to the anhydrous piperazine of 1:2 to 2:1, followed by complete infiltration, and draining the aqueous phase solution; and then pouring an organic phase solution of trimesoyl chloride on the surface of the base membrane, and draining the organic phase solution to obtain the dye-salt separation membrane. The method of the present invention is simple and easy to implement, and the dye-salt separation membrane prepared by the method has a relatively high solution permeability, an efficient dye retention and permeability of inorganic salts, thereby achieving an excellent dye-salt separation effect.

Abstract: An integrated molding device suitable for the bending and hemming of a flat sheet, comprising a stand, a worktable, a slider, and a turning beam. The stand comprises a frame structure composed of an upper cross beam, a lower cross beam, and columns on both sides, two ends of the slider are connected to the columns on both sides by means of a pair of sliding pairs A respectively, and the clutching of a bending die is achieved by means of the linear movement of the sliding pairs A; the worktable is fixed on the lower cross beam, and the clutching of a pressing die is achieved by means of the linear movement of the sliding pairs A; two ends of a swing frame are connected to the columns on both sides by means of one connecting block respectively, the connecting block and the columns are connected therebetween by means of a pair of rotating pairs B, and the connecting block and the swing frame are connected therebetween by means of a pair of sliding pairs C.

Abstract: Provided is an auxiliary bending robot capable of processing two workpieces simultaneously, including a linear base slide rail, a slider, a movable major arm, a movable minor arm, a front arm, a swing link, and an additional seventh axis. The slider is slidably connected to the linear base slide rail, and a first axis is formed between the slider and the linear base slide rail. A top portion of the slider is directly or indirectly hinged to a rear end of the movable major arm through a second axis, a front end of the movable major arm is hinged to a rear end of the movable minor arm through a third axis, a front end of the movable minor arm is hinged to a rear end of the front arm through a fourth axis, and a front end of the front arm is rotatably connected to a middle portion of the swing link through a fifth axis.

Abstract: The present invention discloses a flexible temperature-sensitive pressure sensor based on nanoparticle array quantum conductance, and an assembly method and application thereof. The sensor includes a high polymer film, metal nanoparticle arrays, metal microelectrodes, and an external circuit for conductance measurement; at least one group of metal nanoparticle arrays are deposited on upper and lower surfaces of the high polymer film, and in the same group, positions of metal nanoparticle arrays on the upper and lower surfaces are in one-to-one correspondence; the metal microelectrodes are arranged on two sides of each group of metal nanoparticle arrays and are symmetrically distributed on the upper and lower surfaces of the high polymer film; and the external circuit for conductance measurement is electrically connected to the metal microelectrodes. Conductance response signals of the nanoparticle arrays in the present invention have an exponential relationship with a distance between particles.

Abstract: The present disclosure provides a four-dimensional imaging method for structural damage based on a time-invariant characteristic signal. The method first uses a probability statistical modeling method to describe the uncertainty distribution of the amplitude of each sampling point in the signal in the healthy state and the damaged state of the structure, respectively. Then the degree of difference between the two distributions at each point is measured to suppress the influence of the time-varying factor, highlight the influence of damage, and construct a time-invariant characteristic signal. Finally, the time-invariant characteristic signal of the pitch-catch channel is fused by using the guided wave imaging method to further enhance the influence of damage. Based on this, four-dimensional imaging is performed to achieve reliable and accurate location of structural damage.

Abstract: Provided is a Schizochytrium limacinum strain, a building method therefor and an application thereof. The strain disclosed is classified and named as Schizochytrium sp. HX-RS, and the preservation number is CCTCC NO: M2017046. An acyltransferase functional domain originating from shewanella PKS enzyme is adopted instead of an acyltransferase functional domain originating from schizochytrium sp. PKS enzyme, and the strain is obtained by performing flat panel screening and acclimation screening with a high rotation speed and a low temperature.

Abstract: The present invention provides a method for promoting the growth and preservation quality of Agaricus bisporus, and belongs to the technical field of cultivation and preservation of edible fungi. In the present invention, the methyl jasmonate solution is sprayed onto the surface of Agaricus bisporus at a concentration of 10-200 ?mol/L when the Agaricus bisporus grows to the mushroom bud stage, which can accelerate the growth and development of the Agaricus bisporus, improve the post-harvest preservation quality of the Agaricus bisporus, and prolong the shelf life thereof, thereby improving the yield and commercial value of the Agaricus bisporus. The present invention provides a new method for increase in both production and income and post-harvest preservation of Agaricus bisporus, can be applied to large-scale industrial production of Agaricus bisporus, and thus has important economic benefits and application promotion value.

Abstract: A system for automatic buffer overflow warning inspection and bug repair is disclosed. The system includes a first module for warning reachability analysis, the first module accepts static overflow warnings and source code as an input, the first module is functionally connected to the second and the third modules, and sends out a warning path set as an output. The system also includes a second module for guided symbolic execution, the second module is functionally connected to the first module and the third module. The system further includes a third module for buffer overflow validation, the third module is functionally connected to the first, the second and the four modules and sends out undecided warnings and false warnings as output. The system further includes a fourth module for targeted automatic repair, the fourth module is functionally connected to the third module and sends out true warnings as output.

Abstract: A highly efficient three-dimensional image acquisition method based on multi-mode composite encoding and epipolar constraint, respectively using a fast imaging mode or a high-precision imaging mode, wherein in the fast imaging mode, two phase maps having different frequencies are obtained by four stripe gratings, and a high-frequency absolute phase is obtained by means of the epipolar constraint and a left-right consistency check, and the three-dimensional image is obtained by means of a mapping relationship between the phase and three-dimensional coordinates; and in the high precision imaging mode, two phases having different frequencies are obtained by means of N+2 stripe gratings, a low-frequency absolute phase is obtained by the epipolar constraint, and the unwrapping of a high-frequency phase is assisted by means of the low-frequency absolute phase, so as to obtain the high-frequency absolute phase, and finally, the three-dimensional image is obtained by the mapping relationship between the phase and the

Abstract: Provided is an auxiliary bending robot capable of processing two workpieces simultaneously, including a linear base slide rail, a slider, a movable major arm, a movable minor arm, a front arm, a swing link, and an additional seventh axis. The slider is slidably connected to the linear base slide rail, and a first axis is formed between the slider and the linear base slide rail. A top portion of the slider is directly or indirectly hinged to a rear end of the movable major arm through a second axis, a front end of the movable major arm is hinged to a rear end of the movable minor arm through a third axis, a front end of the movable minor arm is hinged to a rear end of the front arm through a fourth axis, and a front end of the front arm is rotatably connected to a middle portion of the swing link through a fifth axis.