49results about How to "Solve the problem of poor stability" patented technology

The coenzyme Q10 injection emulsion has coenzyme Q10 as the effective medicine component, and each 1000 ml emulsion contains coenzyme Q10 1-10g, vegetable oil for injection 0-200g, emulsifier 1-50g, isoosmotic regulator 5-50g, antioxidant 0.05-5g, pH regulator in the quantity of regulating pH value to 3.0-9.0, co-emulsifier 10-500g and water for injection for the rest. It provides the patient with treating medicine and essential nourishing matter. It has high physical stability and may be prepared into freeze dried preparation for further raised stability and convenient storing and transportation. The coenzyme Q10 injection emulsion has certain targeting effect, so that it has raised bioavailability and lowered toxic side effect.

The invention discloses a steel hoop truss type elevated pile cap tower crane foundation construction method. The method comprises (1) constructing four cast-in-place concrete piles in a foundation pit before foundation pit earthwork excavation, the pile bottom elevation being below the foundation pit bottom elevation and the ratio of the length of the cast-in-place concrete pile below the foundation pit bottom face to the length of the cast-in-place concrete pile in the foundation pit being larger than or equal to 1.5; (2) pouring a reinforced concrete pile cap at the pile top and installing a tower crane on the pile cap; and (3) carrying out the foundation pit earthwork excavation, while forming a steel truss type hoop structure on the exposed sections of the four cast-in-place concrete piles in the foundation pit to connect them together. The invention also discloses a steel hoop truss type elevated pile cap tower crane foundation structure constructed by the method. The tower foundation adopting the invention has stable and firm structure, high safety, convenient construction, and low cost, and the steel components of the steel truss type hoop structure can be recycled.

The invention discloses a zinc-nickel / air hybrid flow battery system and relates to an energy storage technology of a flow battery. The zinc-nickel / air hybrid flow battery system comprises single batteries or a battery module formed by two or more single batteries, a liquid storage tank, a circulating pump and a pipeline, wherein each single battery comprises a positive electrode, a frame and a negative electrode; a composite electrode of a bivalent nickel compound layer and an oxygen reduction layer is adopted by each positive electrode; an electrolyte is an alkaline zincate water solution and is transferred into each frame when charged; an active material bivalent nickel on each positive electrode is oxidized into trivalent nickel and oxygen evolution reaction is carried out; and zinc ions in the electrolyte are deposited on each negative electrode in a form of a zinc element. The trivalent nickel on each positive electrode is reduced into bivalent oxide or hydroxide of nickel when discharged, and then subjected to oxygen reduction reaction; and the zinc element on each negative electrode is oxidized into the zinc ions to return to the liquid storage tank. According to the flow battery, the problems of incomplete zinc discharge and poor stability caused by the damage of the oxygen evolution reaction to a carbon-based electrode are solved, the energy density of the battery isimproved and the system of an application system of the flow battery is expanded.

The preparation process of hydrolytic gelatin with combined enzyme includes compounding water solution with gelatin material, regulating pH value with citric acid and phosphate buffering system, heating to reaction temperature, throwing enzyme via stirring, heating to killing enzyme, filtering, concentrating and drying to obtain hydrolytic gelatin. The combined enzyme contains any two of neutral proteinase containing AS1.398, papain, trypase and pineapple proteinase; the reaction has temperature suitable for the enzyme components, system pH value of 5-8.5 and reaction period of 0.5-5 hr; and the single enzyme adding amount is 0.01-2 wt% of gelatin. The enzyme components are added after being mixed or successively to degrade gelatin, and the process can decrease molecular weight of hydrolytic gelatin, raise hydrolytic gelatin solution stability and eliminate bad smell.

The invention belongs to the technical field of oxygen ion-electron mixed conductor oxygen-permeable membranes and particularly relates to a titanium-based perovskite ceramic oxygen-permeable membranewith no cobalt or iron and a preparation method and application thereof. The titanium-based perovskite ceramic oxygen-permeable membrane herein is made from materials with no cobalt or iron and has achemical composition expression of A1-xTi1-yByO3-delta, wherein A is selected from one or any of La, Y, Pr, Gd, Sm, Ba, Sr and Ca, and B is selected from one or any of Mg, Al, Er, Y, Gd and Zr, with0< / =x< / =0.2 and 0< / =y< / =0.2. The titanium-based perovskite ceramic oxygen-permeable membrane with no cobalt or iron provided herein is excellently stable in the strict working conditions, such as hightemperature, vapor, hydrogen and methane, is suitable for long-term stable operation under reaction conditions, is suitable for preparing high-purity hydrogen by hydrolysis of oxygen-permeable membranes, and is also suitable for producing hydrogen by coupling hydrolysis of a membrane reactor and producing synthetic gas from methane.

The invention provides a foaming agent for improvement of slag oil of a soil pressure balance shield and a preparation method thereof. The foaming agent for the improvement of the slag oil of the soilpressure balance shield is prepared from the following components in percentage by weight: 4% to 8% of alpha-alkenyl sodium sulfonate, 8% to 12% of lauryl sodium sulfate, 3% to 5% of alkylphenol polyoxyethylene, 0.05% to 0.2% of xanthan gum, 1% to 4% of coconut oil fatty acid diethanolamide, 1% to 3% of sodium gluconate, 0.5% to 2% of polyethylene oxide, 1% to 2% of polyaspartic acid, and the balance of water. The foaming agent has the advantages that by adopting the alpha-alkenyl sodium sulfonate, the lauryl sodium sulfate and the alkylphenol polyoxyethylene to prepare the foaming agent, thefoaming ability is enhanced under the compounding and cooperation function of the alpha-alkenyl sodium sulfonate, the lauryl sodium sulfate and the alkylphenol polyoxyethylene; the foaming time is greater than 30 times; by adopting the coconut oil fatty acid diethanolamide to enhance the surface action force of the air foam through cooperation, the stability of the foam under the high-speed shearing function of a knife disc is improved; the pressure fluctuation of a soil bin is reduced; the stability of the excavated surface of the shield is improved.

The invention relates to immobilized lysine decarboxylase, a preparation thereof, a 1, 5-pentane diamine preparation method and the prepared 1, 5-pentane diamine. The invention specifically relates toimmobilized lysine decarboxylase comprising an aldehyde group-modified polymer carrier and lysine decarboxylase, and a method for preparing immobilized lysine decarboxylase by the aldehyde group-modified polymer carrier; a method for preparing 1, 5-pentane diamine by the immobilized lysine decarboxylase, and the prepared 1, 5-pentane diamine thereof. The immobilization method has high enzyme immobilization efficiency and good stability in use, improves the use efficiency of enzyme, solves the problem of poor use stability of free lysine decarboxylase (cells) in traditional processes, greatlyreduces the use cost of the carrier and the biological production cost of 1, 5-pentanediamine, simplifies the separation step of 1, 5-pentane diamine solution and enzyme, increases the degree of automation of the production of 1, 5-pentane diamine, and promotes the process of industrialization of biological production of 1, 5-pentanediamine.

A compound isopropylphenol injection containing local anesthetic contains proportionally isopropylphenol, the local anesthetic chosen from procaine, lidocaine, etc, the refined plant oil for injection, emulsifier, isotonic regulator, antioxidant, pH regulator and the water for injection. Its preparing process is also disclosed.

The invention discloses a preset type tower crane deep foundation construction method, which comprises the following steps: 1 measuring and setting out, ensuring a tower crane foundation position, and spot using a pre-fabricated tile-shaped cylinder wall member to form a first section cylinder wall at the position of the tower crane foundation position; 2 excavating earthwork in the first section cylinder wall till the first section cylinder wall sinks under the ground; 3 spot using the pre-fabricated tile-shaped cylinder wall member to form a second section cylinder wall connected with the first section cylinder wall; 4 continuing earthwork excavation till the second section cylinder wall sinks under the ground; 5 repeating the step 3 and the step 4 till the bottom face of the first section cylinder wall reaches bottom elevation of the tower crane foundation; and 6 completing tower crane foundation construction at the bottom of the first section cylinder wall. The invention further discloses a tower crane deep foundation structure which adopts the tower crane deep foundation construction method. The preset type tower crane deep foundation construction method and the structure well resolve the problems that during construction process of ultra-deep and ultra-large foundation pits, a tower crane is utilized to perform vertical transportation during the whole course, and the stability of the tower crane is poor.

The invention provides a laminate type high-rise platform pile tower crane foundation and a construction method. The method comprises the following steps of before excavating foundation pit earthwork, constructing four concrete cast-in-place piles, penetrating the concrete cast-in-place piles through a foundation bottom plate, wherein a pile top mark is higher than the ground or the close place; casting a reinforced concrete bearing platform on the tops of the four concrete cast-in-place piles, and pre-burying a tower crane foundation section in the bearing platform, wherein the mounting of a tower crane is finished; and before excavating the foundation pit earthwork, downwards excavating along the surrounding of the tower crane bearing platform, casting a concrete laminate structure layer by layer on the concrete cast-in-place piles above the foundation bottom plate, and widely excavating the earthwork in the other area. The problem that the tower crane is poor in stability when the tower crane is used for vertical conveying in a pit construction process is better solved, the tower crane can be mounted to work before engineering piles are not constructed or the foundation pit earthwork is excavated, the time for excavating a foundation pit is effectively shortened, the working efficiency of foundation pit construction is improved, the period for foundation pit construction can be greatly shortened, and beneficial conditions for the smooth perforation of the subsequent procedures are provided.

The invention discloses a single-pipe communication tower valve base. The single-pipe communication tower valve base comprises a cubic base, wherein a barrel-shaped pipe body, which is vertically mounted, is arranged at the center of the cubic base; the lower end face of the cubic base is borne on a cross-shaped transverse beam; the cross-shaped transverse beam is fixedly connected with four vertex angles on the lower surface of the cubic base; four connection rods, which are parallel to the cross-shaped transverse beam, are arranged on the upper surface of the cross-shaped transverse beam; the two ends of the connection rods are fixedly connected with the vertex angles on the upper surface of the cubic base and a side wall of the barrel-shaped pipe body respectively; a retractable supporting rod is further mounted on the upper surface of the cubic base; one end of the retractable supporting rod is fixed at the edge of the upper surface of the cubic base in a manner of rotating up and down; and a sickle-shaped supporting block is arranged at the other end of the retractable supporting rod and is used for supporting a tower body of a single-pipe communication tower. The single-pipe communication tower valve base is simple in structure and reasonable in design; a structural design of the cross-shaped transverse beam, the barrel-shaped pipe body, the connection rods and the retractable supporting rod is adopted, so that the single-pipe tower can be effectively supported and positioned, and the difficulty that an existing single-pipe communication tower has poor stability is overcome.

The invention belongs to the field of medical instruments, and discloses a traditional Chinese medicinal material placing device which is characterized in that an opening is formed in the bottom surface of a drawer box, a baffle extends into the opening, a slot is formed in the left side surface of the opening, the left end of the baffle extends into the slot, and the right end of the baffle is connected with a pull plate; longitudinal concave main sliding grooves are formed in the left side and the right side of the front side face of the drawing cylinder. Side sliding grooves are formed in the left side surface and the right side surface of the sliding groove; a transverse round-rod-shaped sliding rod is arranged in the main sliding groove. Two ends of the sliding rod are arranged in theside sliding grooves; the sliding rod is sleeved with a lower sleeve in the shape of a transverse circular tube; the outer wall of the lower sleeve is connected with the lower end of a vertical supporting rod, the upper end of the supporting rod is connected with the outer wall of a transverse circular-tube-shaped upper sleeve, the upper sleeve is arranged outside a transverse circular-tube-shaped beam rod in a sleeving mode, the inner end of the beam rod is connected with the left outer wall and the right outer wall of the drawer box, and the outer end of the beam rod is connected with a longitudinal end plate. The traditional Chinese medicinal materials in the drawer box can be conveniently operated, and the firmness and the stability of the drawer box when the drawer box is pulled areimproved.

The invention relates to immobilized lysine decarboxylase, a preparation thereof, a 1, 5-pentane diamine preparation method and a product. The invention specifically relates to immobilized lysine decarboxylase comprising a diazo group-modified polymer carrier and lysine decarboxylase, and a method for preparing immobilized lysine decarboxylase by the diazo group-modified polymer carrier; a methodfor preparing 1, 5-pentane diamine by the immobilized lysine decarboxylase, and the prepared 1, 5-pentane diamine thereof. The immobilization method has high enzyme immobilization efficiency and goodstability in use, improves the use efficiency of enzyme, solves the problem of poor use stability of free lysine decarboxylase (cells) in traditional processes, greatly reduces the use cost of the carrier and the biological production cost of 1, 5-pentanediamine, simplifies the separation step of 1, 5-pentane diamine solution and enzyme, increases the degree of automation of the production of 1, 5-pentane diamine, and promotes the process of industrialization of biological production of 1, 5-pentanediamine.

The invention discloses a preparation method of a photoelectrocatalysis anode material taking TNTs as a substrate, and belongs to the technical field of anode photoelectrocatalysis and pollutant treatment. The anode material has good photoelectrocatalysis performance and comprises a substrate TNTs, wherein SnO2, Sb and Ag nano ions are loaded on the surface of the substrate, the SnO2 and the Sb nanoparticles are attached to the tube bottom and the internal tube wall of the TNTs, and the nano Ag ions are loaded at the tube opening of the TNTs, so that a microscopic three-dimensional stable structure is formed. According to the invention, the problem that the electric energy utilization rate is low in the photoelectrocatalysis process is solved, the problem that photo-induced electrons and holes are prone to compounding is also solved, the efficient and stable photoelectrocatalytic pollutant degradation performance is achieved, and the beneficial effects of being stable in structure andhigh in photoelectrocatalytic performance are achieved; and the photoelectric test results show that the TNTs-SnO2 / Sb / Ag photoelectrocatalytic anode prepared by the method has good photochemical properties and good electrochemical properties compared with the pure TNTs anode, and has strong pollutant removal capacity.

The invention discloses a multi-chamber aluminum electrolysis tank and a bus system thereof. Anodes and cathodes are arranged in the multi-chamber aluminum electrolysis tank in an alternating manner in the horizontal direction. Platy electrode structures of the same size are adopted in the anodes and the cathodes. The anodes and the cathodes are vertically parallel to each other and fixed into theelectrolysis tank. At least two electrolysis chambers are formed between the adjacent anodes and the cathodes. Anode guide rods of all the anodes in the aluminum electrolysis tank are connected in parallel and collected to the same anode bus. Horizontal flow collecting steel bars of all the cathodes in the aluminum electrolysis groove extend out of the same side of the aluminum electrolysis tankand are connected in parallel and collected to a stand column bus through cathode buses. The stand column bus is connected to a power source negative pole or connected into an anode bus of the next electrolysis tank in series. The anode bus is connected to a power source positive pole or connected into a stand column bus of the former electrolysis tank connected in series. The aluminum electrolysis tank has great significance for energy conservation and economic operation, and guarantee can be provided for deep energy conservation and environmental protection.

The invention discloses a flexible display device, which comprises a body structural part and a locking part, and is characterized in that the body structural part is provided with a hollow space, andthe locking part is connected with the body structural part in the hollow space; flexible display panel, the supporting structural part is rotationally connected to the first side wall of the body structural part, the supporting structural part has a supporting state, in the supporting state, the first end of the supporting structural part is detachably connected with the locking part in the hollow space, and the second end of the supporting structural part extends out of the body structural part to support the flexible display panel in the extending state. The flexible display panel in the stretching state is stably supported by arranging the supporting structural part and the locking part, placement or handholding is facilitated, the problem that a curly screen is poor in stability in use is solved, and the curly screen is convenient to carry and use.

The invention relates to a high-speed bead planting machine which comprises a rack frame, a lifting mechanism, a mounting plate and an air distribution mechanism are mounted on the rack frame, the high-speed bead planting machine further comprises a lossless material distribution assembly, a bead taking assembly and a bead planting assembly, the bead taking assembly comprises a first driving motor, a base and a bead taking disc, and a stock bin for containing blasting beads is formed between the base and the bead taking disc. A discharging port in the lower end of the lossless material distributing assembly penetrates through the base and is communicated with the material bin, the base is provided with an expansion channel for decelerating blasting beads in the material bin, the edge of the bead taking disc is provided with a material storage channel, material stirring teeth for accelerating the blasting beads and an air passing channel for disturbing blasting bead air blowing, and the bead planting assembly comprises a second driving motor, an air distribution disc and a bead planting disc. The edge of the bead planting disc is in butt joint with the edge of the bead taking disc to conduct blasting bead transferring. The machine has the advantages that the improved blasting bead taking assembly can effectively damage the bridging phenomenon of blasting beads during high-speed operation, the domestic blasting beads can be guaranteed to be used for production through lossless material distribution and the improvement of the material distribution protection plate, and 420 m / min ultra-high-speed production operation can be achieved.

The invention relates to a preparation method of high-stability liquid blueberry anthocyanin, which belongs to the field of food processing. The preparation method includes the following steps: at room temperature, uniformly mixing graphene oxide and chitosan in an MES buffer solution, then successively adding EDC and NHS, and reacting to obtain a first solution; adding dried blueberry anthocyaninpowder in the first solution, adjusting the pH to 4.5-5, and uniformly mixing to obtain a second solution; and processing the second solution at 350-420 MPa and 2-4 DEG C, thereby obtaining high-stability liquid blueberry anthocyanin. With the dried blueberry anthocyanin powder as raw material, the method can improve the stability of blueberry anthocyanin in the process of processing and production by adding the graphene oxide and chitosan combined compound as an anthocyanin stabilizer.

The invention discloses a sawdust smashing machine which comprises a machine support frame. Foldable movable wheels are mounted at the bottom of the machine support frame, a feed conveyor is mounted on the upper side of the left end of the machine support frame, and a discharge outlet is formed in a position above the feed conveyor. The sawdust smashing machine has the advantages that the sawdustsmashing machine is provided with three crusher rolls with different crushing degrees on the basis of an existing sawdust smashing machine, and accordingly the problems of incapability of effectivelysmashing small timber and incapability of thoroughly smashing different types of timber when the existing sawdust smashing machine in the prior art is used can be solved by the aid of the sawdust smashing machine; the sawdust smashing machine is in internal spiral feed modes, and accordingly blockage phenomena of the sawdust smashing machine can be prevented during smashing; the foldable movable wheels are mounted at the bottom of the sawdust smashing machine and can be packed up when the sawdust smashing machine is used, the sawdust smashing machine can be directly connected with the ground by the machine support frame, and accordingly the problem of poor stability of an existing machine when the existing sawdust smashing machine with movable wheels can be solved by the aid of the sawdustsmashing machine.

The invention discloses a feedback control circuit and an output signal control method for an optoelectronic detection apparatus. The feedback control circuit provided by the invention comprises an optoelectronic detection apparatus, a variable optical attenuator (VOA) and a feedback control apparatus, wherein the VOA is connected to an input end of the optoelectronic detection apparatus and is used for performing energy attenuation on an input optical signal and transmitting the attenuated optical signal to the optoelectronic detection apparatus; the feedback control apparatus is connected to an output end of the optoelectronic detection apparatus, an output end of the feedback control apparatus is connected to an input end of the VOA, and the feedback control apparatus is used for generating a first control signal according to an electrical signal output by the optoelectronic detection apparatus, and transmitting the first control signal to the VOA. The invention solves a problem of poor stability of the output signal of the optoelectronic detection apparatus, which is caused by a great influence of change of strength of the input optical signal on the output electrical signal in a process of adopting the optoelectronic detection apparatus to convert the optical signal into the electrical signal.

The invention discloses a flexible display device, comprising: a main structural part, a locking part, the main structural part has a hollow space, and the locking part is connected with the main structural part in the hollow space; a flexible display panel, a supporting structural part, a supporting The structural member is rotatably connected to the first side wall of the main structural member, and the supporting structural member has a supporting state. In the supporting state, the first end of the supporting structural member is detachably connected with the locking member in the hollow space, and the supporting structural member The second end protrudes from the main structure to support the stretched flexible display panel. The flexible display panel in the stretched state is stably supported by setting the supporting structure and the locking member, which is convenient for placing or holding, and solves the problem of poor stability in the use of the curly screen, making it easy to carry and use.

The invention relates to immobilized lysine decarboxylase, its preparation, 1,5-pentamethylenediamine preparation method and product. It specifically relates to an immobilized lysine decarboxylase comprising a diazo-modified polymer carrier and a lysine decarboxylase, and a method for preparing an immobilized lysine decarboxylase with a diazo-modified polymer carrier; and A method for preparing 1,5-pentanediamine by immobilized lysine decarboxylase and the prepared 1,5-pentanediamine. This immobilization method has high immobilization efficiency of enzyme, good use stability, improves the use efficiency of enzyme, solves the problem of poor stability of free lysine decarboxylase (cell) in traditional technology, and greatly reduces the use cost and cost of the carrier. The production cost of 1,5-pentamethylenediamine by biological method simplifies the separation steps of 1,5-pentamethylenediamine solution and enzyme, increases the automation of 1,5-pentamethylenediamine production, and promotes the production of 1,5-pentamethylenediamine by biological method The industrialization process of pentamethylenediamine.

The invention provides a pipette tip. The pipette tip comprises a first pipette tip body (1) and a second pipette tip body (2), wherein the first pipette tip body (1) comprises a sharp liquid absorbing end (11), a tubular liquid storage cavity (12) and a tip tail part (13) which are sequentially communicated; the top of the tip tail part (13) is sealed, and a plurality of filter holes (3) are formed in the side face of the tip tail part (13); the second pipette tip body (2) comprises a cover body (21), a filter layer (22) and connecting grooves (23); the cover body (21) is arranged outside the tip tail part (13) of the first pipette tip body (1) in a sleeving manner; the filter layer (22) is arranged between the connecting groove (23) and the cover body (21); two grooves are formed in two sides of the tail end of the second pipette tip body (2), and the connecting grooves are embedded into the grooves. The pipette tip can be used for effectively solving the problems of sealing performance between the pipette tip and a pipette socket and poor use stability of the pipette, and can be used for effectively preventing pollution by setting double filter layers.

The saddle regulating fixer for circular knitting machine includes one regulating gear shaft, which is set on washer and has cap with outer thread, inner hexagon, inner thread below the inner hexagon and outer notch; one small gear, which is meshed with the saddle rising gear and has inner thread for meshing with the cap of the regulating gear shaft; one locating part set to the saddle in the position corresponding the thread hole of the regulating gear shaft; and noe screw bolt fixed onto the regulating gear shaft through the locating part. After regulation, the saddle regulating fixer can fix the saddle to the washer firmly.

A process for preparing Calcium-enriched whole egg beverage similar to milk in appearance includes such steps as ashing egg shells, adding water, adding acid for neutralizing, filtering, enzymolyzing whole egg liquid by papain, deactivating enzyme, dispensing, homogenizing, pouring in containers, sealing, sterilizing and cooling.

The invention discloses a resistance adjusting circuit for improving circuit stability. According to the resistance adjusting circuit for improving the stability of the circuit, the current sampling unit is used for collecting the output current of the circuit with the stability to be improved, and the resistance adjusting unit is used for adjusting the total resistance of the branch where the preset target resistance is located according to the collected output current of the circuit with the stability to be improved. The current on the target resistor is prevented from changing along with the output current. The target resistor is a resistor in the circuit of which the stability is to be improved, and the stability of the circuit is influenced because the current of the target resistor changes along with the output current. The resistance adjusting circuit for improving the stability of the circuit can effectively solve the problem that the stability of an existing circuit is poor due to the fact that the output characteristic of the existing circuit is greatly influenced by load changes.