12results about How to "Volume stability" patented technology

This application provides a voice gain control method, apparatus, voice control device, and storage medium, relating to the field of voice signal processing technology. The method includes: determining a target gain level for the current statistical period based on a first volume parameter of multiple frames of voice signals within a historical statistical period; and adjusting the second volume parameter of each frame of voice signal within the current statistical period based on a second volume parameter and the target gain level. This application can improve the stability of voice signal volume gain control.

The application discloses a kind of segmented hole sealing multi-tube synchronous grouting device and construction method, belong to grouting equipment technical field, including multiple grouting pipes, multiple segmented covers, multiple segmented membrane bags and multiple pressure valves;Multiple segmented covers are set on multiple grouting pipes according to preset grouting section distance interval along grouting pipe length direction;Each grouting pipe includes inlet section pipe body and outlet section pipe body, inlet section pipe body is provided with membrane bag inlet, outlet section pipe body is provided with grouting port, and the membrane bag inlet and grouting port of each grouting pipe are set according to preset grouting section distance interval;Each segmented membrane bag is located at adjacent grouting section boundary and wraps corresponding membrane bag inlet;Each pressure valve is installed inside grouting pipe and located in the pipe section covered by segmented membrane bag, and the pressure valve is configured to: when the pressure of liquid in the pipe is less than the set threshold, it is closed, and it is opened and kept irreversible opening after exceeding the threshold.The application realizes reliable segmented hole sealing, prevents grouting and multi-tube synchronous grouting, improves construction efficiency and grouting quality.

The utility model belongs to clothes cleaning device technical field especially relates to a clothes brush. A clothes brush, include: the body of rubbing, it includes the hair seat and the liquid storage seat, two splices make that the body of rubbing inside forms the liquid storage chamber, and the splicing of hair seat and liquid storage seat is equipped with sealing structure, liquid valve is located on hair seat, and the liquid valve includes: the valve body, with fixed connection of hair seat, be equipped with the liquid outlet chamber that communicates with the liquid storage chamber in the valve body, and the valve body still is equipped with the valve hole that liquid flows to the outside of the body of rubbing, the valve hole is conical, movable valve head is located in the liquid outlet chamber, movable valve head includes the sealing section that cooperates with the valve hole, the sealing section forms the taper surface that adapts with the valve hole, spring is located in the liquid outlet chamber, is used for the pre -tightening force to movable valve head, makes sealing section always close the valve hole, sponge, the head of movable valve head is covered, the utility model has the advantages that the sealing property is good, and the excess overflow of cleaning fluid can be avoided simultaneously.

The invention relates to the technical field of shield tunnel engineering waterproof materials, and discloses a high-resilience compressive deformation resistant shield segment sealing gasket and a preparation method thereof, and the material is prepared from a solid ethylene-propylene-diene copolymer, a reactive pre-dispersed rubber master batch, carbon black, a peroxide vulcanizing agent and the like. Wherein the masterbatch comprises carbon black, zinc methacrylate, liquid ethylene propylene diene monomer and alpha-methylstyrene dimer. According to the invention, an ion and covalent dual cross-linked network is constructed through in-situ polymerization, reactive plasticizing is realized by using liquid rubber, and the problem of volume shrinkage caused by migration of a traditional plasticizer is solved. And in cooperation with a specific pre-dispersion process, the material has excellent compression set resistance and long-term dimensional stability, and the safety and durability of tunnel sealing are remarkably improved.

The application belongs to the technical field of brick and stone cultural relics protection, and particularly discloses a metakaolin-based calcium phosphate chemical bonding mortar, a preparation method and application thereof. The mortar is composed of the following raw materials in percentage by mass: 11.0-14.0% of high-activity coarse metakaolin, 3.0-5.0% of high-activity superfine metakaolin, 13.0-17.0% of calcium dihydrogen phosphate-hydrate powder, 52.0-56.0% of mullite sand, and the balance of mixing water. Compared with the prior art, the repair material can have compatibility, safety and certain weather resistance with the brick and stone cultural relics, the molar ratio of phosphorus and aluminum of the reactant is controlled, the particle size grading of the metakaolin is adjusted, the proportion of the product crystal and amorphous structure is regulated, and then the metakaolin-based calcium phosphate chemical bonding material with a strength gradient is prepared. The setting time of the prepared material is appropriate, the shrinkage rate is low, and there is no soluble salt, so the material has high applicability for the repair and reinforcement of the brick and stone cultural relics.

The invention provides a quantitative feeding mechanism for a special energy high-flux experiment. The quantitative feeding mechanism comprises a shell; a feeding hole and a discharging hole are respectively formed in the top and the bottom of the shell; the top of the feeding port fixedly communicates with a storage hopper. A rotating cylinder is installed in the shell in a matched mode. A charging barrel extending into the rotating barrel is arranged on the barrel wall of the rotating barrel, and a trough is formed in the charging barrel; an adjusting mechanism is arranged on the charging barrel and is used for adjusting the size of the trough; a driving mechanism is installed on the side wall of the shell and connected with a switching assembly. The switching assembly enables one of the adjusting mechanism and the rotating cylinder to be connected with the driving mechanism. By arranging the adjusting mechanism on the charging barrel, the size of the trough for charging and feeding can be adjusted, different requirements of experiments of different groups and different parameters on the material feeding amount in the special energy high-flux experiment can be met without replacing feeding components with different volumes, and the experiment efficiency is greatly improved.

The utility model discloses a multifunctional limestone lifting conveying belt, including base, the rim fixedly connected with apron at base top, the side wall of base top end is the inclined structure, one side fixedly connected with the link box of base, the link box is the hollow structure, and inside detachable connection has the conveying belt, and the interval groove that is established has between the conveying belt and base, the outside side wall of conveying belt evenly fixedly connected with the collection board, and the top of collection board is established with the anti -fall board, the utility model has the following advantages: because the anti -fall board is connected on the collection board, and the anti -fall board is connected with the collection board through the pivot and the torsional spring, thereby the anti -fall board will block in the top of collection board under the action of torsional spring, thereby the limestone in collection board is restricted, reduces the limestone drop rate in the process of lifting, guarantees single -time lifting transportation capacity is relatively stable, thereby improves the efficiency of transportation.

The present specification discloses a multi-view X-ray inspection system having, in one of several embodiments, a three-view configuration with three X-ray sources. Each X-ray source rotates and is configured to emit a rotating X-ray pencil beam and at least two detector arrays, where each detector array has multiple non-pixellated detectors such that at least a portion of the non-pixellated detectors are oriented toward both the two X-ray sources.

The utility model discloses a kind of air outlet pipe assembly of soft and hard tube combination as resonant cavity, belong to engine intake system technical field, for solving the problem of traditional air cleaner air outlet pipe resonant cavity structure complexity, process is complicated and big mould investment. The assembly includes corrugated hose, hard tube, clamp and rubber sleeve;Hard tube one end is inserted into hose, and sealing resonant cavity is formed by clamp holding and fixing, and the other end of hard tube is equipped with rubber sleeve to connect supercharger;Hose outer peripheral wall is provided with corrugated structure to realize decoupling, and hard tube outer wall is integrated with air supply pipe joint and venturi pipe joint. When working, airflow passes through resonant cavity, attenuates noise by cavity resonance, corrugated structure absorbs vibration, integrated joint meets the functional requirement of whole vehicle, and rubber sleeve realizes sealed connection with supercharger. The utility model replaces traditional welding plastic piece cavity by soft and hard tube combination and clamp connection, saves welding process and additional rubber pipeline, simplifies structure, reduces mould investment, reduces cost, while realizing noise reduction and decoupling function.

The application provides application of desalted plant ash in protection of cultural relics in grotto temples. The application also provides a mixed mortar for reinforcement of the cultural relics in the grotto temples and a preparation method thereof. The multi-scale fiber reinforced mixed mortar provided by the application has mechanical properties matched with the protection requirements of the cultural relics in the grotto temples, low shrinkage, good acid resistance and salt resistance, and can cope with various adverse environmental factors such as dry-wet changes, crack water seepage, acid rain, salt crystallization damage and the like in the preservation of the cultural relics in the grotto temples. The preparation method is simple, raw materials are economical and easy to obtain, and the product is light and flexible. The application can solve the problem of insufficient anti-cracking capacity of the existing protection materials for the cultural relics in the grotto temples, improve the safety and durability of the cultural relics in the grotto temples, and has a comprehensive protection effect.

The invention discloses a connector technology, and aims to provide a four-core beam-expanding oil-filled optical fiber connector and an assembling method thereof. According to the technical scheme, the oil-filled plug is characterized by comprising a threaded sleeve, a plug shell, a four-optical-fiber beam expanding insulator, a pressure compensator, an oil-filled plug tail clamp, a sealing assembly and a calibration gasket which is clamped between the butt joint end faces of the oil-filled plug tail clamp and the plug shell and used for adjusting the pre-compression stroke of the pressure compensator. The screw sleeve, the plug shell, the four-optical-fiber beam expanding insulator, the pressure compensator, the oil-filled plug tail clamp, the sealing assembly and the calibration gasket jointly define a completely-closed oil-filled cavity, fluorinated oil or synthetic hydrocarbon oil subjected to degassing treatment is injected into the oil-filled cavity through a valve, and the oil-filled cavity is matched with the pressure compensator to construct an active pressure compensation sealing system. The invention is suitable for the technical field of connectors.

The utility model relates to the technical field of pressure casting sprayers, in particular to a connecting rod type sprayer for pressure casting, which comprises a pneumatic control box, a connecting rod mechanism, a translation mechanism and an atomizing mechanism, and the atomizing mechanism comprises a lower shell, a splitter plate, a plurality of electromagnetic valves, two pneumatic control valves, a plurality of atomizing nozzles and a plurality of quick drain valves. When atomization demolding is carried out, spraying and demolding are carried out through a plurality of atomizing nozzles, and through the arrangement of a plurality of quick drain valves, the situation that water enters a two-position five-way valve and the two-position five-way valve is damaged when an air source and the plurality of atomizing nozzles are damaged and return water enters the two-position five-way valve can be prevented, so that the device adopts a plurality of inner diameters to enlarge the pipe diameter, the air quantity is stable and the pressure drop is low in the spraying process; the mold release agent has the advantages of simple structure, strong explosive force, excellent atomization effect, double release agent consumption cost, double operation speed and double service life. And as the atomization effect is good, the use amount of the release agent is small.