Abstract: A method for increasing the production of Erinacine A in liquid fermentation of Hericium erinaceus is provided. Through screening of exogenous factors, methyl violet and/or rotenone are selected as the exogenous factors, which ultimately greatly increases the Erinacine A content in the liquid fermentation of Hericium erinaceus, with important production and application value. The liquid fermentation method has high efficiency and can significantly increase the content of Erinacine A in the liquid fermentation process, breaking through the synthetic barrier and having the characteristics of large increase amplitude and fast effect. Compared with other current research on liquid fermentation of Hericium erinaceus to produce Erinacine A, the method for increasing the liquid fermentation production of Erinacine A from Hericium erinaceus is at the highest level, with important research significance.

Abstract: Provided are a directionally assembled flexible MOF hydrogel, a preparation method and a proton conduction application thereof. The prepared method includes: mixing a transition metal salt and L-Glu to prepare a mixed aqueous solution; putting the mixed aqueous solution into a reaction kettle to react at a constant reaction temperature in a range from 80° C. to 200° C. for a reaction period of 1-5 hours, to thereby obtain a reacted aqueous solution; cooling the reacted aqueous solution to room temperature; and washing the reacted aqueous solution after the cooling with deionized water and absolute ethanol, to thereby obtain the directionally assembled flexible MOF hydrogel, L-Glu-M (M?Zr, Fe, or Co), for sealing and storing. The preparation method is simpler and easier to operate, and the directionally assembled flexible MOF hydrogel has great prospects in the field of proton conducting technologies.

Abstract: A BMOFs nanosheet based on a ZIF/MIL topology, and a preparation method and an application thereof are provided. The preparation method includes dispersing a MOF material of a ZIFs series in an organic phase, then adding an aqueous phase to obtain a mixture; and adding a MOF material of a MILs series into the mixture, sealing, standing for 1-5 days, filtering, performing centrifugal washing, drying, and performing acetone ultrasonic exfoliation to obtain the BMOFs nanosheet based on the ZIF/MIL topology. The preparation method is simple to operate and moderate in conditions, and the prepared ZIF/MIL BMOFs nanosheet has good electrocatalytic activity and stability in an OER.

Abstract: A pile-supported embankment model test device and method under an action of rainfall and dry-wet cycle comprises a unit model box system with adjustable model box height, a vertical reinforcement system of a model box unit block, a transverse reinforcement system of the model box unit block, a rainfall control device, and a drying system combined with voltage control and resistance wire height control; wherein the vertical reinforcement system of the model box unit block and the transverse reinforcement system of the model box unit block reinforce the unit model box system vertically and horizontally; through the rainfall control pipe and rainfall control valve of the rainfall control device, the rainwater conveying pipe can be watered at the same time to simulate rainfall. The device simulates the natural environment rainfall and drying process to study the working behavior of pile-supported embankment under the action of rainfall and dry-wet cycle.

Abstract: A plant leaves-derived carbon material doped with two metals and preparation and use thereof are provided, the carbon material prepared by carbonizing, in an inert atmosphere, plant leaves which have absorbed ions of two metals M1 and M2. The metal M1 is Co, Mn, or Fe. The metal M2 is Ni, Cu, or Zn. The carbon material can be used as an efficient, green, and safe catalyst for the selective oxidation of cycloalkanes to produce cycloalkanols and cycloalkanones, and enable an increased selectivity of the target products (thus less by-products), a low yield of cycloalkyl peroxides, reduced reaction temperature, low environmental impact, and safe production.

Abstract: The present invention relates to the technical field of organic light-emitting materials, and provides a tetradentate cyclometalated platinum (II) complex based on an oxygen atom linkage and containing phenyl acridine and an application thereof. The tetradentate cyclometalated platinum (II) complex has the structure as represented by general formula (I). (I) The cyclometalated platinum (II) complex in the present invention adopts a tetradentate ligand, is high in rigidity, and can improve the light stability of a light-emitting material. At the same time, the complex molecule can strongly emit light, and therefore can be used as a light-emitting material in an OLED device.

Abstract: The present invention relates to a xylitol preparation device integrating evaporation, crystallization and centrifugation, including a xylitol tank, a cleaning liquid tank, a recycling tank and a multiple distribution system, wherein the multiple distribution system includes J groups of evaporators for evaporation concentration, K groups of vacuum crystallization kettles for vacuum crystallization and L groups of centrifuges for centrifugation, wherein 2?J?6, 6?K?12 and 2?L?4; the evaporator, the vacuum crystallization kettle and the centrifuge in different groups are sequentially connected in series with one another through a pipeline and a valve respectively; by controlling on and off of each valve, a xylitol exchange liquid is switched and controlled between a series-connection mode and a parallel-connection mode in the multiple distribution system to enable evaporation, crystallization and separation processes to reach an optimal effect distribution so as to improve productivity.

Abstract: A method for rapid low-salted pickling of aquatic products is disclosed, which includes preliminary processing of raw materials, bacteria-reducing treatment of plasma activation gas, marinade adding and plasma treatment, cyclic bacteria-reducing treatment with the plasma activation gas and vacuum pickling. The marinade adding and plasma treatment include respectively injecting the marinade and plasma working gas into a tumbler, with a flow rate of ionic working gas injected into the tumbler of 1.5-2 L/min and a flow rate of a pickling solution of 0.5-0.8 L/min: and at the same time, starting a plasma power supply, and performing low-temperature plasma treatment on the aquatic products to be pickled, with a plasma treatment voltage of 12000-15000 V, a current of 60-80 mA, a frequency of 8-10 kHz, which is a second bacteria-reducing treatment, with plasma treatment time of 15-20 min.

Abstract: Related to are a device and a method for performing continuous carbonation and impurity removal for xylose mother liquor.

Abstract: A method for extracting and purifying Dendrobium officinale polysaccharides comprises following steps: (1) fully disperse Dendrobium officinale powder in pure water to obtain crude liquid; (2) removing insoluble impurities from the crude liquid through a microfiltration membrane to obtain permeate 1 and retentate 1; (3) performing macroporous ultrafiltration treatment of the permeate 1 and collect permeate 2 and retentate 2; (4) adding an aqueous solution of edible alkali metal inorganic salt to the retentate 2, fully stirring and dissolving to obtain polysaccharide crude liquid, performing macroporous ultrafiltration treatment and collecting permeate 3 and retentate 3; (5) combining the permeate 2 and permeate 3, adding the combined permeate into an electrodialysis device for desalination, and collecting dilute solution and concentrated solution; (6) performing microporous ultrafiltration treatment of the dilute solution and collect retentate 4 and permeate 4; (7) carrying out freeze-drying of the retentate

Abstract: Disclosed is a confining pressure-adjustable test and observation system for soil deformation features during vacuum preloading. The system includes a soil vacuum consolidation system, a vacuum drive system, a confining pressure system and a monitoring system; where the soil vacuum consolidation system includes a model box filled with test soil, the confining pressure system is arranged in the model box, two sides of the model box are provided with slide plates, and the slide plates on two sides are provided with expansion control cavities at two side ends of the model box correspondingly, and a corrugated air bag is arranged in the expansion control cavity and is connected to an external air pump and an air bag air pressure control device through a pipeline; the test soil in the model box is covered with geotextile, and the geotextile is covered with a vacuum film.

Abstract: A novel geotextile tube type sludge dehydration device combined with vacuum preloading including a geotextile tube for filling sludge, a pump drainage mechanism, vacuum tubes and a vacuum pump, where the geotextile tube is divided into top cloth and bottom cloth, a slurry filling inlet is provided on the top cloth, and the top cloth and the bottom cloth are sewn by means of a portable rechargeable bag sewing machine; and the pump drainage mechanism is arranged in the geotextile tube, is connected to the vacuum pump by means of the vacuum tubes, and includes a drainage plate and a hand connector, the drainage plate being inserted into the hand connector, the hand connector is connected to the vacuum tubes, and is fixed by hoops, and the vacuum tubes pass through flange piece ports on the geotextile tube, to be connected to the vacuum pump.

Abstract: This invention provides a method for preparing electrospraying particles to improve stability of polyphenol including the following steps: preparing a pectin-silica composite; adding polyphenolic compounds into the pectin-silica composite to prepare a core solution; and coaxial electrospraying the core solution and a shell solution to prepare electrospraying particles loaded polyphenol. This method utilizes a pectin-silica composite as a polyphenol loading carrier, improves the encapsulating efficiency of polyphenols, reduces the contact probability of polyphenols with oxygen and water, and improves the stability of polyphenols; and an acidic aqueous solution is used as a shell solution to synergize with the pectin-silica composite to further improve the stability of polyphenols.

Abstract: A device for pyrolysis reactions includes a feeding pump, a flow meter, an atomizer, a pyrolysis reactor, electromagnetic coils, an electromagnetic induction heating power, a temperature sensor, a temperature controller, a condenser and a product tank. The feeding pump is connected with the flow meter which is connected to the inlet of the atomizer in the pyrolysis reactor. There is a port at the bottom of the pyrolysis reactor, with the port at the top of the pyrolysis reactor connected with the condenser. The condenser is connected with the product tank. The external wall of the pyrolysis reactor is surrounded by electromagnetic coils which are connected with the electromagnetic induction heating power. The temperature sensor is placed between the pyrolysis reactor and the coils, which is connected with the temperature controller. The contact resistance between the atomized material and the hot surface can be.

Abstract: A method for rapid low-salted pickling of aquatic products is disclosed, which includes preliminary processing of raw materials, bacteria-reducing treatment of plasma activation gas, marinade adding and plasma treatment, cyclic bacteria-reducing treatment with the plasma activation gas and vacuum pickling. The marinade adding and plasma treatment include respectively injecting the marinade and plasma working gas into a tumbler, with a flow rate of ionic working gas injected into the tumbler of 1.5-2 L/min and a flow rate of a pickling solution of 0.5-0.8 L/min: and at the same time, starting a plasma power supply, and performing low-temperature plasma treatment on the aquatic products to be pickled, with a plasma treatment voltage of 12000-15000 V, a current of 60-80 mA, a frequency of 8-10 kHz, which is a second bacteria-reducing treatment, with plasma treatment time of 15-20 min.

Abstract: The present invention relates to a method for preparing low-sulfur biodiesel.

Abstract: A metal-free catalytic oxidation system, an oxygenation method and a method for producing benzoic acid derivatives. The system includes a feed device; a tubular reactor; a plurality of venturi nozzles mounted on the tubular reactor at intervals; a tubular filter; a discharge device for a solid phase product; and an intermediate tank for reaction mixture. A low-pressure zone is formed at an output end of each of the plurality of venturi nozzles, and an oxygen inlet corresponds to the low-pressure zone; the tubular filter comprises an inner tube and an outer tube connected to each other, where the inner tube is provided with small holes for solid-liquid separation; the discharge device for the solid phase product is located at an end of the inner tube; and the intermediate tank for reaction mixture is connected to the outer tube of the tubular filter through a pipeline.

Abstract: A device for pyrolysis reactions includes a feeding pump, a flow meter, an atomizer, a pyrolysis reactor, electromagnetic coils, an electromagnetic induction heating power, a temperature sensor, a temperature controller, a condenser and a product tank. The feeding pump is connected with the flow meter which is connected to the inlet of the atomizer in the pyrolysis reactor. There is a port at the bottom of the pyrolysis reactor, with the port at the top of the pyrolysis reactor connected with the condenser. The condenser is connected with the product tank. The external wall of the pyrolysis reactor is surrounded by electromagnetic coils which are connected with the electromagnetic induction heating power. The temperature sensor is placed between the pyrolysis reactor and the coils, which is connected with the temperature controller. The contact resistance between the atomized material and the hot surface can be.

Abstract: This invention provides a method for preparing electrospraying particles to improve stability of polyphenol including the following steps: preparing a pectin-silica composite; adding polyphenolic compounds into the pectin-silica composite to prepare a core solution; and coaxial electrospraying the core solution and a shell solution to prepare electrospraying particles loaded polyphenol. This method utilizes a pectin-silica composite as a polyphenol loading carrier, improves the encapsulating efficiency of polyphenols, reduces the contact probability of polyphenols with oxygen and water, and improves the stability of polyphenols; and an acidic aqueous solution is used as a shell solution to synergize with the pectin-silica composite to further improve the stability of polyphenols.

Abstract: The present invention relates to a method and a device for ship-borne freezing of marine products after treated by highly activated water and nondestructive sensing of ice crystals. Through treating the seawater with atmospheric plasma in a certain atmosphere and introducing the tail gas from plasma reactor into the seawater in tail gas collecting device, the highly activated water is obtained. After cooling by the ship-borne refrigeration system, the cooled highly activated water can be used to cool and sterilize the captured marine products timely. During the following freezing processes, both the ultra-high frequency (UHF) electromagnetic field system and pulsed ultrasonic monitoring system are applied simultaneously, which can not only effectively reduce the size of ice crystals and the juice loss of the frozen products during thawing, but also inhibits the thermal effect of electromagnetic field.