Abstract: Disclosed are a vehicle communication method, system and device, and a storage medium. The method is applied to a secure communication server end in communication connection with a vehicle-mounted secure communication proxy end, and may include: receiving a target service request; sending an authorization request to a client corresponding to the vehicle-mounted secure communication proxy end according to the target service request; receiving an authorization response generated by the client according to the authorization request; and establishing, according to the authorization response, a data channel for communication connection between the vehicle-mounted secure communication proxy end and the secure communication server end.

Abstract: A power device for dual water paths and a washing apparatus are provided. The power device comprises a water path connecting body, a filter, and two pumping units The water path connecting body is provided with a water inflow cavity and two water outflow cavities; the two water outflow cavities are connected in parallel with each other and are connected in series to the water inflow cavity; the filter is provided on the water path connecting body and located at a water outlet end of the water inlet cavity; and the two pumping units are respectively provided on the two water outlet cavities. The optimized design is carried out on the cavities in the water path connecting body, and the two pumping units pump water by means of respective water outflow cavities.

Abstract: Disclosed is a method and system of REV cross-scale simulation for adaptive control in tunnel operations. The method includes establishing a rock mass engineering scale calculation model; dividing the rock mass engineering scale calculation model into a plurality of finite elements, and performing mesh division on the finite elements; presetting a plurality of test blasting parameters; determining a dynamic load based on at least one of the test blasting parameters; applying a boundary condition to the rock mass engineering scale calculation model; determining force information and first motion information of element nodes of the finite elements and determining a failure state of each finite element using a continuous medium method; determining second motion information of particles of an REV model inside at least one failed finite element using a discontinuous medium method; determining an optimal blasting parameter; and controlling a blasting robot to perform a blasting operation.

Abstract: A design method for preventing and controlling water inrush catastrophe in tunnels and techniques for optimizing actual tunnel construction, specifically: discretizing calculation model into material points, setting virtual boundary layers outside boundary of calculation model; selecting size of horizon of material points to form neighborhood matrix of material points; making crustal stress equivalent to stress boundary condition, making karst cave water pressure equivalent to normal pressure, and converting displacement constraint and tunnel support into displacement boundary conditions; solving speed and displacement of material point, determining whether bonds of all material points meet failure condition, recording local damage situations; after initial balance calculation is stable, simulating tunnel construction process by using material point dormancy method; and according to physical values of optimization parameters of actual tunnel construction obtained by simulation results that meet the requiremen

Abstract: An automatic detergent feeding device includes a liquid storage box, the liquid storage box is provided with a liquid outlet channel, the inside of the liquid outlet channel is provided with an opening and closing valve assembly for opening/closing the liquid outlet channel and an anti-backflow valve assembly for preventing an external liquid from flowing backwards into the liquid storage box, and the anti-backflow valve assembly is arranged at the upstream, corresponding to a liquid outlet direction, of the opening and closing valve assembly. The automatic detergent feeding device is provided with the anti-backflow valve assembly to prevent the external liquid from flowing backwards into the liquid storage box. Therefore, in case of failure of an extraction unit, the anti-backflow valve assembly will close the liquid outlet channel of the liquid storage box to prevent the external liquid from flowing backwards into the liquid storage box to cause water overflow.

Abstract: A method for characterizing thixotropic characteristics of submarine landslide mass material, including: performing steady shear on landslide mass material, and determining solid-fluid transition boundary according to variation of yield stress value in yield stress test; performing conversions between shear speed and shear rate and between shear torque and shear stress according to variations of apparent viscosity-shear speed and shear torque-shear speed of landslide mass material at different shear times in apparent viscosity test to obtain variations of the apparent viscosity and the shear stress at different shear rates to construct conventional rheological model; constructing thixotropy characterization equation according to variations of the shear stress and the apparent viscosity with the shear time in the thixotropy test; and constructing rheological model for characterizing the thixotropic characteristics of the submarine landslide mass material according to the solid-fluid transition boundary, the co

Abstract: An electric double-rod grease gun is provided, which includes an oil storage tank, a plunger pump, and a driving device; the plunger pump includes a pump body that is provided with a first plunger chamber and a second plunger chamber, both the first plunger chamber and second plunger chamber are respectively provided with a first plunger rod and a second plunger rod; the driving device includes a driving motor, a reduction mechanism, a main transmission gear, a first secondary transmission gear, a second secondary transmission gear, a first eccentric shaft, a second eccentric shaft, a first connection rod, and a second connection rod. The first secondary transmission gear and the second secondary transmission gear are all meshed with the main transmission gear grease.

Abstract: Provided are various Stimulator of Interferon Genes (STING) allosteric modulators as well as methods of making and use thereof. Specifically provided herein are highly active STING inhibitors (antagonists) and activators (agonists). The compounds provide herein may be prepared as pharmaceutical compositions and used in methods of treating conditions related to disrupted or defective STING signaling.

Abstract: Provided are a green sealing material for karst flowing water, and a preparation method and use thereof. The green sealing material includes a component A and a component B, with a volume ratio of the component A to the component B being in a range of 4:1 to 5:1; where the component A includes in parts by weight: 40 parts to 50 parts of a sulphoaluminate cement, 10 parts to 15 parts of a light-burned magnesium oxide, 1 part to 4 parts of boric acid, and 40 parts to 50 parts of water; and the component B includes in parts by weight: 0.2 parts to 0.4 parts of hydroxypropyl methylcellulose, 0.1 parts to 0.5 parts of polyacrylamide, 15 parts to 30 parts of potassium dihydrogen phosphate, 0.2 parts to 0.4 parts of triethanolamine, 0.5 parts to 1 part of lithium carbonate, and 80 parts to 100 parts of water.

Abstract: Disclosed are a vehicle communication method, system and device, and a storage medium. The method is applied to a secure communication server end in communication connection with a vehicle-mounted secure communication proxy end, and may include: receiving a target service request; sending an authorization request to a client corresponding to the vehicle-mounted secure communication proxy end according to the target service request; receiving an authorization response generated by the client according to the authorization request; and establishing, according to the authorization response, a data channel for communication connection between the vehicle-mounted secure communication proxy end and the secure communication server end.

Abstract: A multimedia cloud service method, a communication cloud system and a computer readable storage medium are disclosed. The method may include, receiving, by the signaling cloud system, a media service request; controlling, according to the media service request, by the signaling cloud system, the media control entity to process the media service rule; and establishing, according to the media service rule, by the media control entity, a media data interaction path between the terminal device and the media exchange entity.

Abstract: A metal powder preparation system and method are provided. The metal powder preparation system includes a medium frequency smelting furnace, a homogeneous insulated quantitative pouring furnace, a precision-controlled liquid level temperature pouring ladle, and a plurality of groups of atomization mechanisms connected in sequence. The present application improves the preparation quality of the metal powder, so that the parameters such as the powder particle size, sphericity, fluidity, oxygen content, component distribution, and particle size distribution of the metal powder can all meet the requirements of high-quality metal additive manufacturing, achieving efficient and continuous preparation of the metal powder at the same time.

Abstract: The present disclosure provides a document processing method and apparatus, and an electronic device. A specific implementation of the method comprises: receiving a triggering operation for a target document output by a target client, the target document comprising a first object and a second object, and the first object comprising a first content of a first component. In response to the triggering operation, rendering the first object by using a front-end control in the target client; and rendering the second object by using the target client, wherein the second object comprises a second content of a second component. The implementation achieves a partial same-layer rendering. Thus when the problem of mutual coverage between a native component and a webpage component is reduced, a decrease in the quality and efficiency of rendering is reduced, and the impact on some functions of the native components is also reduced.

Abstract: An electric double-rod grease gun is provided, which includes an oil storage tank, a plunger pump, and a driving device; the plunger pump includes a pump body that is provided with a first plunger chamber and a second plunger chamber, both the first plunger chamber and second plunger chamber are respectively provided with a first plunger rod and a second plunger rod; the driving device includes a driving motor, a reduction mechanism, a main transmission gear, a first secondary transmission gear, a second secondary transmission gear, a first eccentric shaft, a second eccentric shaft, a first connection rod, and a second connection rod. The first secondary transmission gear and the second secondary transmission gear are all meshed with the main transmission gear grease.