40results about How to "Consistent stability" patented technology

The invention discloses a sine wave inverter parallel system with variable current ratio, which is characterized by comprising a monitoring management unit and one or a plurality of inverter power supply modules in redundancy parallel operation; the monitoring management unit is connected with all the inverter power supply modules through a communication signal wire; the inverter power supply modules are mutually connected by the communication signal wires, synchronous signal wires and average current signal wires; and each inverter power supply module is simultaneously connected with a DC (Direct Current) input end and an AC (Alternating Current) output end. The proportion of the load current shared by each module of the parallel system provided by the invention can be set as required so as to meet the requirements on uniform load current sharing (current equalization) by parallel inverter power supply modules with same capacity or load current sharing by the inverter power supply modules with different capacities in the parallel system according to different proportions, so that the parallel function of the inverter power supply modules with different capacities is realized.

The invention provides a core-shell-structure silver-gold nanosheet based on epitaxial growth and a preparation method and application thereof. The method includes the steps that firstly, a silver nanosheet solution is prepared, then, chloroauric acid and ligand react in the alkaline environment, and a gold precursor solution is obtained; and a reducing agent, surfactant, a pH modifier, ligand or acetonitrile and the silver nanosheet solution are added to the gold precursor solution, and the core-shell-structure silver-gold nanosheet is obtained after the reaction. The ligand and chloroauric acid radial can generate coordination, a gold precursor is formed, the redox potential of gold is reduced, and the replacement reaction is prevented from being generated; the gold precursor is reduced into gold atoms through the reducing agent, the gold atoms are deposited on the surface layer of a silver nanosheet in an epitaxial growth mode, and the core-shell-structure silver-gold nanosheet is formed. The preparation process is simple and feasible; the shape and the size of the core-shell-structure silver-gold nanosheet are controllable; the excellent stability and the good optical property are achieved; wide application prospects are achieved in the fields of molecular detection and the like.

The invention provides a carbonic acid gas-containing foaming liquid dairy product and a method for producing the same, wherein the foaming liquid dairy product contains 0.15 to 1 percent of lactoprotein and 1.5 to 3.5 percent of grease substances, and each kilogram of the foaming liquid dairy product contains 0.5 to 1 grams of CO2 gas. The selected raw materials are mixed in a ratio to obtain mixed concentrated solution, and the concentrated solution is sterilized and then mixed with CO2-containing acid liquor to form the carbonic acid gas-containing foaming liquid dairy product, and the product has good foam forming property and persistent foaming property and can be preserved for 6 months.

The invention relates to the field of gas sensitive sensors, and in particular relates to an array type smell detecting element based on an MEMS (Micro Electro Mechanical System) technology. The problem that the individuals in the gas sensitive sensor array used by the existing electronic nose are not uniform in response to characteristic drift is solved. The detecting element comprises a semi-conductor substrate, as well as a gas sensitive unit, a temperature sensing unit for detecting the working temperature of the gas sensitive unit, and a heating unit for heating the gas sensitive unit to the needed working temperature, wherein the gas sensitive unit, the temperature sensing unit and the heating unit are obtained by being processed with the MEMS processing technology on the semi-conductor substrate; the gas sensitive unit comprises a plurality of gas sensitive metallic oxide thin films which are arranged in the light of an array; the gas sensitive metallic oxide thin films are different in size parameters but the same in type; and each thin film is provided with two electrodes for connection with data acquisition equipment. The array type smell detecting element is simple in structure and can be realized by being processed with the MEMS technology which is relatively maturely developed; and in addition, the array type smell detecting element is beneficial to the realization of the integration and the miniaturization of the electronic nose and achieves reasonableness in method and correctness in identification.

The invention relates to siRNA for inhibiting expression of a CTGF gene. The siRNA contains a positive-sense strand and an antisense strand, wherein the positive-sense strand contains a nucleotide sequence I, the antisense strand contains a nucleotide sequence II, the nucleotide sequence I and the nucleotide sequence II are both 19 nucleotides in length, and the nucleotide sequence II at least partially and mutually complements a sequence which is 19 nucleotides in length in a region from site No. 700 to site No. 1050 of CTGF mRNA. From a terminal 5' to a terminal 3', nucleotides at sites No.7, No. 8 and No. 9 of the nucleotide sequence I are fluoro-modified nucleotides, and nucleotides at sites No. 2, No. 6, No. 14 and No. 16 of the nucleotide sequence II are fluoro-modified nucleotides.The invention further provides a pharmaceutical composition containing the siRNA. The siRNA and the pharmaceutical composition containing the siRNA can be used for treating or improving diseases relevant with the expression of the CTGF gene.

The invention provides a preparation method for Shuanghuanglian granules. The invention aims at providing a preparation method for solving one or a plurality of problems of an existing preparation method for the Shuanghuanglian granules that the preparation method is complex, the product output is low, the production period is longer, a large number of workers are needed, various devices are adopted, and a grand site is occupied for production. The preparation method comprises the following steps: getting scutellaria baicalensis extractive cream type paste; adding proper water to uniformly mix; adjusting pH (Potential of Hydrogen) to reach neutral by sodium hydroxide solution; agitating to dissolve; adding honeysuckle and fructus forsythiae based on the dose prescribed in the prescription; mixing and extracting the paste; then heating and concentrating into liquid type paste; filtering; collecting the filtrate to be used as adhesive; adding proper auxiliary materials such as cane sugar and dextrin; and then implementing fluidized dry granulating, so as to obtain the finished product. The preparation method adopts the one-step granulating (fluidized dry granulating) manner, so that the time, labor and force are saved, the working strength is reduced, and the cross contamination between the environment and the medicine can be completely avoided. The preparation method is applied to the field of traditional Chinese medicines.

The invention provides siRNA for inhibiting COL1A1 gene expression. The siRNA comprises a positive-sense strand and an antisense strand, wherein the positive-sense strand comprises a nucleotide sequence I, the antisense strand comprises a nucleotide sequence II, the length of the nucleotide sequence I and the length of the nucleotide sequence II are both 19 nucleotides, and the nucleotide sequenceII is at least partially complementary with a sequence with the length of 19 continuous nucleotides in the region from the 800th locus to the 2200th locus of COL1A1 mRNA. According to the direction from a 5' end to a 3' end, the nucleotides at the 7th, 8th and 9th loci of the nucleotide sequence I are fluoro-modified nucleotides, and the nucleotides at the 2nd, 6th, 14th and 16th loci of the nucleotide sequence II are fluoro-modified nucleotides. The invention further provides a pharmaceutical composition containing the siRNA. The siRNA and the pharmaceutical composition containing the siRNAcan treat or improve diseases related to COL1A1 gene expression.

The invention belongs to the technical field of agricultural analysis, specifically relates to a special ammonia indicator for analyzing ammonia content by flow injection instruments. An import flow injection instrument is used for analyzing the ammonia contents of samples such as animal and plant life, food, water and soil, which has been normally-used instrument device and technology in domestic universities and colleges as well as scientific research, animal and plant life and food detection and check units. However, the most important reagent that is ammonia indicator for analyzing ammonia content was monopolized by foreign companies all the time, and the cost is expensive. The invention provides the proper mass ratio of prepared special ammonia indicators of flow injection instruments that are cresol red, bromcresol purple and bromothymol blue. The main technical targets of the special ammonia indicator in the invention all meet analysis requirements, and the cost of the reagent is 3.3% of that of contrast reagent.

The invention discloses a method for grafting and fermenting of Pu'er tea. The method comprises the following steps: separately performing withering, enzyme deactivation and rolling treatment on big leaf type Pu'er crude tea of three major tea producing areas including Yunnan Menghai tea area, Pu'er tea area and Lincang tea area, drying, and uniformly mixing; watering the tea leaves mixed uniformly, and then carrying out pile-fermentation to prepare a mother pile of tea leaves; then, with the Yunnan big leaf type Pu'er crude tea as a raw material, preparing Pu'er tea according to a traditionalmethod, and in the fermentation process, turning the pile for 5 times, and from the 3rd to the 5th turning, adding the mother pile of tea leaves and mixing uniformly; and after the tea leaves are un-piled, deblocking and naturally cooling and drying the tea leaves, and further processing to obtain the Pu'er tea. The method is simple and easy to operate, ensures the stable quality of each batch ofproducts, avoids the problems such as acid, throat rubbing, stinging, stabbing, souring, etc., and is suitable for industrial production as well as marketing and application.

The invention discloses walnut juice and a preparation method thereof. The walnut juice is composed of the following components in percentage by weight: 3.5-6% of walnut kernels, 6.5-7.5% of white granulated sugar, 0.1-0.2% of a compound emulsion thickener, 0.03-0.05% of sodium carbonate and the balance being deionized water. By reasonably setting a formula and selecting and proportioning additives, the adding amount of food additives can be decreased by more than 50% and only accounts for 0.1% of the total amount, moreover, a walnut juice product has the good stability, and can be capable of being stored for a long time.

The invention relates to the field of production of clean energy, in particular to a plateau oxygen-containing multipurpose agent and plateau oxygen-containing clean diesel containing the plateau oxygen-containing multipurpose agent. The plateau oxygen-containing multipurpose agent consists of the following components in percentage by weight: 26-30% of polyoxymethylene dimethyl ether, 1-3% of ferrocene, 10-15% of xylene, 1-3% of isooctyl nitrate, 8-10% of oleic acid, 1-3% of a detergent, and 40-46% of fatty acid methyl ester. The plateau oxygen-containing clean diesel consists of the following components in percentage by weight: 50-58% of the plateau oxygen-containing multipurpose agent, 8-15% of regenerated diesel, 20-30% of diesel composition oil, and 10-30% of aviation kerosene. The plateau oxygen-containing multipurpose agent and the plateau oxygen-containing clean diesel disclosed by the invention have the advantages of being clean, environmental-friendly, energy-saving and economic, and can reach the effects of improving engine power, being good in stability and reducing exhaust emission.

The invention discloses an ursodesoxycholic acid capsule and a preparation method thereof. The ursodesoxycholic acid capsule comprises a content and a capsule shell, wherein the content comprises ursodesoxycholic acid, filling agents, an adhesive and lubricants; the filling agents are microcrystalline cellulose and lactose; the adhesive is povidone K30; and the lubricants are magnesium stearate and silicon dioxide. The ursodesoxycholic acid capsule is obtained by mechanically crushing an ursodesoxycholic acid raw material, the raw material does not need to be micronized, the process is simpleand controllable, types and amounts of the filling agents and the lubricants are optimally selected, parameters of a one-step pelletizing process are optimized, and the prepared ursodesoxycholic acidcapsule product is good in dissolution, small in inter-batch difference and stable in quality, and has dissolution behaviors identical to those of a reference parameter, namely Ursofalk, in five different mediums of a hydrochloric acid solution of which the pHvalue is 1.2, an acetate buffer of which the pH value is 4.5, a phosphate buffer of which the pH value is 6.8, a phosphate buffer of which the pH value is 7.2 and a phosphate buffer of which the pH value is 7.5.

The invention provides a special rotary disc structure for a liquid-by-liquid drop centrifugal atomization method. The special rotary disc structure is characterized by comprising a base body, an atomizing plane and vent holes, wherein the base body is a main body structure with a T-shaped longitudinal section, and the main body structure is composed of a bearing and connecting part at the upper part and a supporting part at the lower part, the upper surface of the bearing and connecting part is provided with a circular groove which is coaxial with a circle center of the bearing and connectingpart and the circular groove has a certain radius; the atomizing plane is of a disc structure, the disc structure cooperates with the circular groove and is in interference fit with the circular groove, and the atomization plane is made of a material with the wettability angle of an atomization melt smaller than 90 degrees; the vent holes are formed in the bearing and connecting part and the supporting part in a penetrating mode, the upper end faces of the vent holes are in contact with the lower end face of the atomizing plane, and the lower ends of the vent holes communicate with the outside. According to the structure, a split type rotary disc structure is mainly adopted, the material with good wettability with the atomized melt is used as the atomization plane of the rotary disc, a material which is poor in thermal conductivity is used as a base body of the rotary disc, so that the metal liquid drops can be well received in an atomizing and pulverizing process, and the spreading atomization of the liquid drop is facilitated.

The invention provides an earth pressure dynamic characteristic modeling method. The earth pressure dynamic characteristic modeling method comprises the steps of collecting historical input and output data of a control system as identification data; determining a soil cabin soil pressure dynamic characteristic ARX model structure of the soil pressure balance shield tunneling machine; and constructing an optimization model of the parameters of the soil pressure ARX model. The invention further provides a shield tunneling machine control system. The shield tunneling machine control system comprises a data acquisition module, a controller, a model training module and a prediction control module. The invention further provides a shield tunneling machine. The shield tunneling machine comprises a shield tunneling machine body, a propelling mechanism and a screw conveyor. According to the method, based on the ARX model, the soil bin pressure and the shield tunneling machine operation parameters are analyzed and modeled, the dynamic mode constraint of the soil pressure system is considered in the model parameter optimization process, and the multi-step forward prediction model of the soil bin soil pressure of the soil pressure balance shield tunneling machine is established, so that the description capability of the model on the dynamic behavior of the soil pressure system is improved. The model established by the invention can be used for designing an earth pressure controller, and provides technical support for effectively controlling the pressure of the sealed cabin of the shield tunneling machine in the tunneling process.

The invention discloses a new aztreonam for injection and a production method thereof. The aztreonam for injection consists of beta crystal form aztreonam and L-arginine, and the weight ratio of the beta crystal form aztreonam to the L-arginine is 1:0.74-1:0.86, wherein the components of aztreonam and L-arginine both need to be ground with the granularity respectively capable of passing a medicinal sieve ranging from 80 meshes to 120 meshes, preferentially a medicinal sieve of 100 meshes. The aztreonam for injection has the advantage of ensuring the crystal form of the aztreonam for injectionsame as that of raw materials, as well as the advantages of accurate rate of two ingredients and subpackage dosage, small subpackage difference among every bottle, uniform mixing, no delamination of two ingredients in production, transportation and storage, and the like. Simultaneously, the invention reduces the impurities of ring-opening aztreonam to some extent.

The invention discloses a preparation method of a cefalexin capsule, and belongs to the technical field of medicines. The method comprises the following steps of: by using cefalexin as a raw material,adding auxiliary materials into the raw material, performing mixing, carrying out dry granulation, filling and packaging to finally obtain a cefalexin capsule preparation, wherein the auxiliary materials include a microcrystalline cellulose-sodium carboxymethylcellulose compound. The national pharmacopoeia standard is met, the effect equal to the quality level of a reference preparation can be achieved, part of quality indexes are even superior to those of the reference preparation, and clinical experiments show that the cefalexin capsule preparation is clinically equivalent to the referencepreparation; and meanwhile, the product quality is improved, consistency evaluation is passed, the method has the advantages of being simple in process, suitable for large-scale industrial productionand the like, and the cefalexin capsule has been commercially produced and sold at present.

A device for monitoring tower stability and filling soil holes in a karst development area comprises a material pipe, air supply equipment, sand supply equipment and slurry supply equipment, one end of the material pipe is located on the ground and provided with an end cover, the end cover is provided with an air inlet hole and a feeding hole which are communicated with the material pipe, the air inlet hole is communicated with the air supply equipment through an air conveying pipe, and the feeding hole is communicated with the sand supply equipment through an air conveying pipe. A first valve is arranged on the air conveying pipe, the feeding hole is communicated with one end of a sand conveying pipe and one end of a slurry conveying pipe through a material conveying pipe, the other end of the sand conveying pipe and the other end of the slurry conveying pipe are communicated with sand supply equipment and slurry supply equipment, a second valve is arranged on the sand conveying pipe, a third valve is arranged on the slurry conveying pipe, and the other end of the material pipe extends to the position close to a soil hole. Monitoring equipment is arranged on the outer surfaces of the side walls at the two ends of the material pipe and the outer surface of the side wall in the middle and is used for monitoring whether materials exist in the material pipe at the mounting position of the monitoring equipment or not. According to the design, the monitoring accuracy is improved, the construction difficulty is reduced, and the construction cost is reduced.

The invention discloses a visual detection method for the appearance of a semi-finished battery. The visual detection method comprises the steps that a qualified battery product picture is photographed and registered as a standard picture; the search range is searched for a picture of a product to be detected through a visual controller, wherein the picture is the most similar to the registered standard picture; the similarity of the picture to be detected and the standard picture is calculated; on the basis of picture analysis, the similarity of the product to be detected and the standard picture is judged, and if the similarity is larger than a set value, position offset correction is performed on the obtained picture of the product to be detected; a battery negative electrode cap is detected through a picture processing method, whether flaws exist in the region outside the negative electrode cap or not is detected through a label setting method. The method is good in detection effect and high in precision; the production efficiency is improved, the uncertainty problem of a current manual visual inspection quality control is eradicated, and it is ensured that the stability of batteries produced in different batches is consistent.

A vane wrap for a projectile is provided where the wrap includes a base configured to wrap entirely around a circumference of a projectile, such as an arrow, and adhere to the arrow. The base includes an outward facing surface having a set of adhesive strips which are placed in predetermined locations and equally spaced about the circumference when the base is applied to the arrow. Each adhesive strip can include an individual corresponding release liner removable from the strip to expose the respective adhesive for application of a vane thereto, and to the arrow in predetermined locations about a circumference of the arrow. A related method of use also is provided.

The invention provides a method for modeling the dynamic characteristics of earth pressure, which includes collecting historical input and output data of the control system as identification data; determining the ARX model structure of the dynamic characteristics of earth pressure in the soil cabin of the earth pressure balance shield machine; and constructing the parameters of the earth pressure ARX model optimization model. The invention also provides a shield machine control system, which includes a data acquisition module, a controller, a model training module and a predictive control module. The invention also provides a shield machine, which includes a shield machine body, a propulsion mechanism and a screw machine. Based on the ARX model, the present invention analyzes and models the pressure of the soil chamber and the operating parameters of the shield machine, and considers the dynamic mode constraints of the earth pressure system during the optimization process of the model parameters, and establishes the earth pressure balance of the earth pressure of the earth chamber of the shield machine. Step forward prediction model to improve the ability of the model to describe the dynamic behavior of the earth pressure system. The model established by the invention can be used in the design of the earth pressure controller, and provides technical support for effectively controlling the pressure of the sealed cabin of the shield machine during the excavation process.

The invention relates to the field of machine learning, in particular to a stability maintaining method in echo state network size compression. The invention aims to provide a method for keeping stability in order to solve the problem that network stability may be changed when network size compression is carried out on an echo state network. The method comprises the following steps: firstly, decomposing an activation function of an original echo state network into two parts at a balance point through Taylor expansion, namely a nonlinear part with a Jacobian matrix being zero and a linear part of a Jacobian matrix inheriting the original activation function; and performing operation such as function approximation on the nonlinear part without changing a Jacobian matrix of the whole function at a balance point. Therefore, the size of the network is compressed, the forward propagation speed of the network is accelerated, and the same stability as that of the original network is kept.

The invention provides a display device which comprises a display panel and a flexible substrate. A bending area is defined on the flexible substrate, and comprises a first layer and a second layer inthe vertical direction. When the bending area is bent, the first layer is located on the outer layer, and the second layer is located on the inner side of the first layer. The first layer is internally provided with a first metal wire of the first shape. The second layer is internally provided with a second metal wire of the second shape. The length of the first metal wire is larger than the length of the second metal wire. According to the display device, the brand-new dual-layer metal wire shape structure design is adopted for the flexible substrate, the intensity of stress borne by the metal wire on the outer layer of the bending area is effectively improved, the metal wires of the inner layer and the outer layer in the bending area both bear force evenly, and the stability of the metal wires is consistent.

The invention relates to the field of gas sensitive sensors, and in particular relates to an array type smell detecting element based on an MEMS (Micro Electro Mechanical System) technology. The problem that the individuals in the gas sensitive sensor array used by the existing electronic nose are not uniform in response to characteristic drift is solved. The detecting element comprises a semi-conductor substrate, as well as a gas sensitive unit, a temperature sensing unit for detecting the working temperature of the gas sensitive unit, and a heating unit for heating the gas sensitive unit to the needed working temperature, wherein the gas sensitive unit, the temperature sensing unit and the heating unit are obtained by being processed with the MEMS processing technology on the semi-conductor substrate; the gas sensitive unit comprises a plurality of gas sensitive metallic oxide thin films which are arranged in the light of an array; the gas sensitive metallic oxide thin films are different in size parameters but the same in type; and each thin film is provided with two electrodes for connection with data acquisition equipment. The array type smell detecting element is simple in structure and can be realized by being processed with the MEMS technology which is relatively maturely developed; and in addition, the array type smell detecting element is beneficial to the realization of the integration and the miniaturization of the electronic nose and achieves reasonableness in method and correctness in identification.

A vane wrap for a projectile is provided where the wrap includes a base configured to wrap entirely around a circumference of a projectile, such as an arrow, and adhere to the arrow. The base includes an outward facing surface having a set of adhesive strips which are placed in predetermined locations and equally spaced about the circumference when the base is applied to the arrow. Each adhesive strip can include an individual corresponding release liner removable from the strip to expose the respective adhesive for application of a vane thereto, and to the arrow in predetermined locations about a circumference of the arrow. A related method of use also is provided.

The invention relates to siRNA capable of inhibiting expression of a TIMP-1 gene. The siRNA contains a positive-sense strand and an antisense strand, wherein the positive-sense strand comprises a nucleotide sequence I; the antisense strand comprises a nucleotide sequence II; the length of the nucleotide sequence I and the length of the nucleotide sequence II are both 19 nucleotides; and the nucleotide sequence II is at least partially complementary with the sequence of 19 continuous nucleotides in the 350th-700th region of TIMP-1 mRNA. According to the direction from the 5'tail end to the 3 'tail end, the nucleotides at the seventh, eighth and ninth positions of the nucleotide sequence I are fluoro-modified nucleotides, and the nucleotides at the second, sixth, fourteenth and sixteenth positions of the nucleotide sequence II are fluoro-modified nucleotides. The invention also provides a pharmaceutical composition containing the siRNA. The siRNA and the pharmaceutical composition containing the siRNA can be used for treating or improving diseases related to expression of the TIMP-1 gene.

The invention belongs to the technical field of formwork support for construction wells, and discloses a climbing system for formwork support in engineering construction wells. The movable frame is provided with a lifting drive mechanism, and the lifting movable frame can be moved along the height direction of the lifting fixed frame through the lifting driving mechanism; the lifting fixed frame is provided with a first wall-attached mechanism, and through the first wall-attached mechanism and Well wall connection of engineering construction wells. The present invention, through the setting of the lifting movable frame and the lifting movable frame and the lifting driving mechanism, can climb step by step during the climbing of the formwork, and has the effects of mutual protection, stable operation and small vibration; by setting the first wall-attached mechanism and the second The second wall-attachment mechanism makes the wall-attachment method novel and can be shared with the reinforcement point of the telescopic formwork, without preset pre-embedding, and has little impact on the wall.

The invention relates to a tissue box capable of rapidly switching locking modes, which comprises a box body and a flip cover, a locking module is arranged between the box body and the flip cover, the locking module comprises a button opening and closing mode and a key opening and closing mode, and a switcher for switching the button opening and closing mode and the key opening and closing mode is arranged on the locking module. The switcher is detachably connected with the locking module, and the locking module is detachably connected with the box body. By the adoption of the technical scheme, the switcher is inserted into the locking module in different scenes so that the two opening and closing modes of button opening and closing and key opening and closing can be switched, when the locking module is damaged, the locking module and the box body can be detached for replacement, the service life is long, and when the key opening and closing mode serves as a common mode, the operation is convenient. The roll paper in the tissue box is prevented from being taken away by people to cause loss and increase the operation cost and management difficulty of a management party, operation is easy, use is convenient, button and key opening and closing are integrated, applicability is higher, operation is convenient, the structure is simplified, cost is reduced, and popularization and consumption are easier.