Abstract: A magnetic-induced stiffness changed soft robot drive module includes magnetic-induced stiffness changed layer, two-degree-of-freedom pneumatic driver, magnetic core and sealing fixing device. The magnetic-induced stiffness changed layer and two-degree-of-freedom pneumatic driver are printed and formed. The magnetic core can be deformed together with the driver, and a magnetic field can be generated when it is energized. After the magnetic core is installed into the two-degree-of-freedom pneumatic driver, then assembled with the sealing fixing device, a soft robot drive module with one end fixed is finished. The magnetic-induced stiffness changed layer has the fast, reversible and controllable stiffness adjustment ability under the action of electromagnetic field.

Abstract: Under conventional techniques, wastewater treatment has many problems such as poor production conditions, serious random interference, strong nonlinear behavior, large time-varying, and serious lagging. These problems cause difficulty in detecting wastewater treatment parameters such as biochemical oxygen demand (BOD) values that are used to monitor water quality. To solve problems associated with monitoring BOD values in real-time, the present disclosure utilizes a self-organizing recurrent RBF neural network designed for intelligent detecting of BOD values. Implementations of the present disclosure build a computing model of BOD values based on the self-organizing recurrent RBF neural network to achieve real-time and more accurate detection of the BOD values (e.g., a BOD concentration). The implementations herein quickly and accurately obtain BOD concentrations and improve the quality and efficiency of wastewater treatment.

Abstract: The present invention discloses a saw-toothed electrode and a method for enhancing the performance of a nanowire UV detector, and relates to the field of semiconductor technologies. The saw-toothed electrode includes two symmetrically arranged patterns; the pattern includes a rectangle and multiple isosceles trapeziums; lower bases of the isosceles trapeziums are connected to a same long side of the rectangle; opposite sides of the two patterns are sides on which multiple isosceles trapeziums are located; equal-length legs and the upper base of the isosceles trapezium are used to grow nanowires; and nanowires grown on upper bases of two isosceles trapeziums, symmetric to each other, on the opposite sides of the two patterns form bridges.

Abstract: A chip layout method based on a minimum total wire length, includes: initializing a total wire length to a preset value, initializing a number of iterations, randomly generating a sequence pair to represent a positional relationship between rectangular circuit modules, inputting the sequence pair to a model, and solving to obtain a sequence pair having a minimum wire length within the number of iterations; changing a field operator of the sequence pair to obtain a new one, inputting the new sequence pair to the model, retaining, if an obtained total wire length is less than the original total wire length, the new sequence pair, or otherwise, abandoning the new sequence pair; repeating the above operation till the number of iterations is reached; and outputting a minimum total wire length, and coordinates of each rectangular circuit module to obtain the chip layout based on the minimum total wire length.

Abstract: An electrical isolation process, includes receiving a substrate including a layer of carbon-rich material on silicon, and selectively removing regions of the substrate to form mutually spaced islands of the carbon-rich material on the silicon. The layer of carbon-rich material on silicon includes the layer of carbon-rich material on an electrically conductive layer of silicon on an electrically insulating material. Selectively removing regions of the substrate includes removing the carbon-rich material and at least a portion of the electrically conductive layer of silicon from those regions to provide electrical isolation between the islands of carbon-rich material on silicon.

Abstract: The invention relates to a testing device for material wear of cycloidal gear and needle bearing of RV reducer, comprising: an upper cover (1), a lower cover (2), two sliding shafts (3 and 3?), two connecting shafts (4 and 4?), a driven shaft component (5), two copper sleeves (6 and 6?), two nuts (7 and 7?), two disc springs (8 and 8?), an eccentric shaft component (9), a needle bearing (10), two planetary gears (11 and 11?), two cycloidal gears (12 and 12?), and a motor assembly (13). The device can be installed on various industrial platforms. The motor drives the planetary gear to rotate, and then drives the eccentric shaft to rotate. The first bearing hole of the cycloidal gear fits with the needle bearing and forms a revolute pair with the eccentric shaft. Owning to the eccentric shaft, the cycloidal gears (12 and 12?) are driven to swing. The other bearing hole fits with the sliding shaft (3 and 3?) and the connecting shaft (4 and 4?) to form a loaded rolling friction pair.

Abstract: The present invention discloses a disparity image stitching and visualization method based on multiple pairs of binocular cameras. A calibration algorithm is used to solve the positional relationship between binocular cameras, and the prior information is used to solve a homography matrix between images; internal parameters and external parameters of the cameras are used to perform camera coordinate system transformation of depth images; the graph cut algorithm has high time complexity and depends on the number of nodes in a graph; the present invention divides the images into layers, and solutions are obtained layer by layer and iterated; then the homography matrix is used to perform image coordinate system transformation of the depth images, and a stitching seam is synthesized to realize seamless panoramic depth image stitching; and finally, depth information of a disparity image is superimposed on a visible light image.

Abstract: Provided is construction of Mucor circinelloides cell factory for producing stearidonic acid (SDA) and fermentation technology. ?15 Desaturase gene is obtained by cloning from Mortierella alpina, the gene is ligated to an integrative plasmid pMAT1552, and transformed into a Mucor circinelloides defective strain Mu402, and ?15 Desaturase gene is integrated on Mucor circinelloides genome through homologous recombination, to obtain the recombinant strain Mc-?15, finally, the expression of the ?15 Desaturase gene in Mucor circinelloides is realized. The recombinant new strain is accession number CGMCC No. 15888, and the classification name is Mucor circinelloides-D15D.

Abstract: An ultrasonic testing device having a packaged semiconductor device as a testing target, the device including: an ultrasonic oscillator disposed to face the semiconductor device; a pulse generator generating a driving signal that is used in the generation of an ultrasonic wave to be output from the ultrasonic oscillator; and an analysis unit analyzing an output signal that is output from the semiconductor device in accordance with the irradiation of the ultrasonic wave from the ultrasonic oscillator, in which the pulse generator sets an optimal frequency of the driving signal such that the absorption of the ultrasonic wave in the semiconductor device is maximized.

Abstract: An all-optical optical parametric oscillator includes a laser module, a temperature control module, a plurality of filters and a beam splitter arranged in sequence. A bulk material or waveguide material is arranged in the temperature control module. Both ends of the bulk material are provided with a first OPO cavity mirror M1? and a second OPO cavity mirror M2?. Each of the first OPO cavity mirror M1? and the second OPO cavity mirror M2? is coated with a high-reflectivity film with respect to an OPO signal light and an OPO idler light, and coated with a high-transmittance film with respect to an OPO pump light, a poling fundamental frequency light and a poling frequency doubled light. The temperature of the material is changed by changing the temperature of the temperature control module to realize temperature tuning of wavelength ?s of the OPO signal light and wavelength ?i of the OPO idler light.

Abstract: A controllable rotary brake includes two non-magnetically permeable isolating rings, a shaft, an even number of magnetic field generating portions, at least one resistance disc, and at least one magneto-rheological fluid layer. The non-magnetically permeable isolating rings are spaced apart from each other in an axial direction, and each has a bottom wall. An even number of penetrating holes are formed on the bottom wall. The shaft is rotatably inserted in and adapted to pivot relative to the non-magnetically permeable isolating rings. Two ends of each magnetic field generating portion are tightly fitted to the corresponding penetrating holes. The resistance disc is sleeved on the shaft and is spaced apart from one of the non-magnetically permeable isolating rings. The magneto-rheological fluid layer fills between the resistance disc and one of the non-magnetically permeable isolating rings and contacts the resistance disc and one end of each magnetic field generating portion.

Abstract: A method for multi-connectivity communication in an application layer of a communication network. The method includes generating a plurality of decision elements and repeating a first iterative process. An ith iteration of the first iterative process includes generating an ith transmit message set by executing an application, transmitting the ith transmit message set from a transmitter to a receiver, receiving an ith receive message set of a plurality of receive message sets, and updating the plurality of decision elements. The ith transmit message set is transmitted over a plurality of networks. The ith transmit message set is transmitted based on the plurality of decision elements. Each transmit message in the ith transmit message set is associated with at least one respective network of the plurality of networks. The plurality of decision elements are updated based on a jth receive message set in the plurality of receive message sets.

Abstract: A device for obtaining water from air on an island includes: a concentrated solution air water obtaining system, a solar collector, a dilute solution dehydration system, a heat pump system, a solution heating system, and a water purification system. Humid air is introduced into the concentrated solution air water obtaining system, which performs a heat and mass transfer into a dilute solution and relatively low-temperature dry air. This air is used as interior fresh air. The diluted solution is heated by the solar collector, delivered to the dilute solution dehydration system, and sent to the solution heating system for heating and evaporating into water vapor. The water purification system cools, purifies, filters and stores the water vapor. At the same time, the heat pump system introduces heated humid air into the dilute solution dehydration system to recover heat contained in the heated humid air, and to extract water.

Abstract: An optical fiber inclination measurement apparatus and a differential inclination measurement system are provided, which is related to the field of monitoring technology. The apparatus includes a supporting mechanism with a base and a base frame, a swinging mechanism with a pendulum, a cycloid, and a first reflective film is disposed on the pendulum. The measurement mechanism includes a first optical fiber, and an end surface of the first optical fiber is disposed opposite to the first reflective film. During an earthquake generating process, a landform changes and the pendulum swings, resulting in changes in displacement. The end surface of the first optical fiber together with the first reflective film form a Fabry-Perot cavity. The cavity length of the Fabry-Perot cavity changes before and after the landform deforms, and an angle of inclination is equal to a value obtained by dividing the cavity length variation of the Fabry-Perot cavity by the pendulum length.

Abstract: A rigid-flexible coupling high-accuracy galvo scanning motor comprises: a stator, a rotor rotating relative to the stator, bearing seats and at least two groups of encoders. The rigid-flexible coupling bearings are installed on the rotating shaft of the rotor; each of the rigid-flexible coupling bearings comprises: a rigid bearing and a flexible hinge ring which is elastically deformable, and the flexible hinge ring is fixed in an inner ring of the rigid bearing; the at least two groups of encoders comprise: a first group of encoders and a second group of encoders; the first group of encoders is used to measure a rotation angle of the rotating shaft; and the second group of encoders is used to measure a rotation angle of the inner ring of the rigid bearing. A friction dead zone is avoided through the elastic deformation of the flexible hinge ring, thereby reducing a disturbance bandwidth.

Abstract: An apparatus and test method for simulating spark discharge of a high-voltage electrostatic precipitator are provided. The simulation apparatus includes a pulse power supply configured to provide a test voltage, an anode cylinder configured to simulate an anode of a precipitator, a cathode rod configured to simulate a cathode of the precipitator, a pulse capacitor unit configured to simulate an electrode capacitor of the precipitator, an insulating support configured to hang the cathode rod, a voltage divider configured to measure an electrode voltage, and a grounded current sampling unit configured to measure grounded current. The simulation apparatus simulates a discharge process of the high-voltage electrostatic precipitator to measure discharge characteristic parameters such as discharge current and discharge energy of the high-voltage electrostatic precipitator. In this way, characteristics of spark discharge of the precipitator under different load conditions are simulated.

Abstract: A method and device for preparing a graphene-based polyethylene glycol phase change material.

Abstract: A method for preparing comb structure temperature/pH-responsive polycarboxylic acid by end-group functionalization adopts temperature/pH-responsive monomer, unsaturated halogenated hydrocarbon, small monomer of carboxylic acid and other raw materials to prepare polycarboxylic acid material via self-polymerization, substitution and copolymerization. Temperature/pH-responsive monomers are first self-polymerized to obtain temperature/pH-responsive polymer chain with end-group functionalization, and then substitution with unsaturated halogenated hydrocarbons is conducted to obtain temperature/pH-responsive macromonomers with end-group functionalization, finally the obtained product is copolymerized with small carboxylic acid monomers to prepare comb structure polymer with polycarboxylic acid main chain and temperature/pH-responsive side chain.

Abstract: Methods and catalysts for producing benzyl alcohol and homologues thereof from short-chain alcohols by catalytic conversion are disclosed. The methods and catalysts develop a new route for benzyl alcohols and ethyl benzyl alcohols production through cross coupling-aromatization reaction using short-chain alcohols as reactants and provide corresponding catalysts required for the above catalytic reaction. It is emphasized on a single bed catalyst to produce benzyl alcohol and its homologues in one step, and is expected to become an important alternative route for the production of benzyl alcohol and its homologues. A route and corresponding catalysts for directly producing benzyl alcohol and ethyl benzyl alcohol through coupling-aromatization reaction starting from low carbon alcohols are provided. The selectivity of the benzyl alcohol is up to 35%, and the total selectivity of the ethyl benzyl alcohol is up to 11%.

Abstract: A spiral impact drilling machine applicable to rock and soil and a construction method are provided. The drilling machine includes a rock chiseling part, a soil drilling part, a gear, a drill rod, and a drill bit. The rock chiseling part includes an air cylinder. A piston is arranged in the air cylinder. The top of the piston is fixedly connected with to a turbine fan blade. The bottom of the piston is fixedly connected to a force transferring component. The soil drilling part includes a motor. The motor is arranged in the force transferring component. The inner part of the gear is in nested connection with the drill rod. The outer part of the gear is in engaged connection with each of the bottom of the force transferring component and the motor. The bottom of the gear is fixedly connected to the drill rod through a stress component.