25results about How to "Reduction factor" patented technology

The invention discloses an accurate feeding system based on multi-source heterogeneous data driving and artificial intelligence. The accurate feeding system comprises a control unit, a data acquisition unit, a feeding unit and a feeding monitoring unit. The data acquisition unit comprises an environmental parameter acquisition module and a water quality parameter acquisition module; the feeding monitoring unit comprises an intelligent camera and an underwater identification frame. The feeding method comprises the following steps: S1, data acquisition; s2, the control unit determines the appropriate feeding amount based on the environment parameters, the water quality parameters and the feeding rule data; s3, feeding according to the basic feeding amount, monitoring the feeding condition of the fishes through a feeding monitoring unit after feeding, and performing secondary feeding according to the feeding condition. By means of the accurate feeding system, the bait coefficient can be remarkably reduced, bait waste is reduced, accurate mastering and timely regulation and control of fish feeding requirements can be achieved by using multi-source heterogeneous data such as environment data, water quality data and feeding data, and the scientificity and accuracy of feeding can be improved.

The invention relates to the technical field of medicine feeding devices, and discloses a quantitative medicine feeding device for mouse experiments, which comprises a box body, a collecting tank body is placed at the bottom end of the box body, quantitative feeders are symmetrically mounted and connected to the inner wall of the box body, and a glass sealing plate is fixedly connected to the top end of the box body; the disinfection mechanism horizontally slides on the inner wall of the box body and comprises a bottom plate, holes are uniformly formed in the middle of the bottom plate, sliding openings are formed in the two sides of the bottom plate, L-shaped plates are slidably connected into the sliding openings, and a shell is fixedly connected to the tops of the L-shaped plates. According to the device, the disinfection mechanism is mechanically driven to conduct automatic intermittent cleaning in the bottom plate, the disinfection assembly is matched to abut against the bottom plate, residual urine and the like on the bottom plate can be cleaned while the bottom plate is disinfected and killed, due to the movable design of the shell, the pressure of mice can be reduced, and the mouse disinfection effect is improved. Extra influence factors under quantitative drug feeding of the mice are reduced, and the drug detection and comparison effect is guaranteed.

The invention discloses an ultrasonic transducer and a backing structure thereof, and belongs to the technical field of ultrasound, the backing structure is connected to the back surface of a piezoelectric layer, and the backing structure comprises a first reflecting layer, a backing layer and a second reflecting layer which are sequentially stacked in the direction away from the piezoelectric layer; the impedance of the first reflecting layer is between that of the backing layer and that of the piezoelectric layer, and the impedance difference between the first reflecting layer and the piezoelectric layer is lower than a first threshold value; the impedance of the second reflecting layer is higher than that of the backing layer, and the impedance difference value between the second reflecting layer and the backing layer is higher than a second threshold value. Through the arrangement of the first reflecting layer and the second reflecting layer, reverse ultrasonic waves generated on the back surface of the piezoelectric layer can be reflected for multiple times in the backing layer, so that the reverse ultrasonic waves are absorbed by the backing layer as much as possible, the absorptivity of the reverse ultrasonic waves is effectively improved, and the interference of the reverse ultrasonic waves on forward ultrasonic waves is reduced.

The application discloses an enzymatic shrimp paste compound water product feeding attractant and application thereof, and belongs to the technical field of water animal feed additives, characterized in that the compound water product feeding attractant is composed of the following components in percentage by weight: 85% to 98% of enzymatic shrimp paste, 2% to 15% of food-grade eugenol, wherein the enzymatic shrimp paste is obtained by directional enzymolysis of shrimp head endocrine fluid through a four-component complex flavor protease containing endoprotease, aminopeptidase, carboxypeptidase and glutamine transaminase; the application further provides a preparation method of the enzymatic shrimp paste and application of the compound water product feeding attractant; and the advantages are that the enzymatic shrimp paste is rich in flavor peptides, after being compounded with eugenol, the eugenol can activate the olfactory receptor ion channel of water animals, amplify the sensing signal of flavor substances, and form a significant synergistic feeding effect, so that the feeding amount of the water animals can be effectively improved, and the feed coefficient can be reduced.

The present invention has as its technical problem to obtain an alloy having a low thermal coefficient characteristic or a negative coefficient of thermal expansion in the vicinity of 600 to 800°C. The controlled expansion alloy of the present invention contains, by wt%, Fe: 20 to 50%, Ni: 0 to 25%, and Cr: 0 to 30% and has a balance of Co and impurities.

Disclosed herein are a Mn-Zn ferrite material and a preparation method therefor. The Mn-Zn ferrite material comprises a main component and an auxiliary component; the main component comprises Fe2O3, ZnO and MnO; the auxiliary component comprises CaCO3, Bi2O3 and CoO; on the basis of the total weight of the main component, the content of CoO is 1000-5000 ppm. The preparation method comprises: (1) mixing each member of the main component, then pre-firing, and obtaining a pre-fired mixture; (2) adding each member of the auxiliary component to the pre-fired mixture, and mixing to obtain a ferrite slurry; (3) granulating the ferrite slurry, and pressing and forming after granulation to obtain a manganese-zinc ferrite blank, and (4) sintering and cooling the manganese-zinc ferrite blank to obtain the Mn-Zn ferrite material. The Mn-Zn ferrite material provided in the present application is a material having high magnetic permeability and a low temperature coefficient.

It is an object of the present invention to provide a compound that has a high refractive index and a low extinction coefficient in a wavelength range of 450 to 750 nm, which is favorably used as a material for a capping layer of an organic EL element. Also, it is another object of the present invention to provide an organic EL element whose light extraction efficiency has been improved by using the compound. The present invention is directed to a compound represented by a general formula (1) or (2) below: where A represents a substituted or unsubstituted aromatic hydrocarbon group or the like, B and C are optionally the same or different, and represent an unsubstituted naphthyl group, an unsubstituted quinolyl group, or the like, and each L is optionally the same or different, and represents a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon group, or the like.

A novel compound for a capping layer, and an organic light emitting device containing the same are disclosed.

The invention discloses a compound feed for seriola aureovittata as well as a preparation method and application thereof, and relates to the technical field of aquaculture. Raw materials of the compound feed for the seriola aureovittata comprise a protein source, a fat source, a sugar source and auxiliary materials in a specific ratio, wherein the protein source comprises at least one of enzymolysis fish meal and enzymolysis fish cream; wherein the enzymolysis fish meal is obtained by performing enzymolysis on fish meal through protease, and the enzymolysis fish cream is obtained by performing enzymolysis on minced fillet through protease. Protein is degraded into small peptide and amino acid which are easy to absorb by using compound enzyme, so that nutrition absorption of the juvenile seriola quinqueradiata is facilitated, and the palatability of the compound feed is also improved; besides, a protein source, a fat source and a sugar source in the compound feed are set to be in a specific proportion for optimizing the fat level in the feed, so that the feed can better meet the nutritional requirements of the growth of the seriola aureovittata, the growth speed of the seriola aureovittata is effectively increased, and the feed coefficient and the feed cost are reduced.

The invention provides a feed for improving brightness and whiteness of body surfaces of butterfly carps and a preparation method thereof, and relates to the field of fish feeds. The feed comprises the following raw materials in percentage by weight: 5-35% of fish meal, 5-20% of puffed soybean meal, 5-20% of peanut kernel meal, 2-10% of coconut meal, 5-10% of vital gluten, 10-35% of flour, 1-10% of attapulgite powder, 1-10% of fish oil, 2-10% of hermetia illucens powder, 1-10% of chlorella, 1-10% of spirulina, 0.01-2% of vitamin C, 0.01-2% of phytase, 0.01-2% of lipase, 1-10% of yeast hydrolysate and 0.01-3% of multivitamins. The feed additive comprises the following components in percentage by weight: 1-5% of yeast, 0.01-5% of composite mineral substances, 1-5% of selenium yeast, 0.1-3% of choline chloride and 0.1-5% of bacillus subtilis powder. The feed can improve the body color brightness degree of the butterfly carp, the growth performance is stable, and the body shape is beautiful.

A substrate and method for providing a thermoplastic composite having a fiberglass mat embedded within a thermoplastic polymer. The characteristics of the fiberglass mat combined with a thermal compression bonding method allow for a substantially improved and desirable thermal expansion coefficient over conventionally filled thermoplastic substrates or other fiberglass reinforced thermoplastics.

The invention relates to the technical field of multi-frequency broadband notch antennas, in particular to a multi-frequency broadband notch antenna and a manufacturing method thereof. Comprising a signal feed-in point, a two-section PIFA antenna and an open-circuit linear wave trap. The double-section type PIFA antenna comprises a low-frequency PIFA oscillator which extends along one side of a signal feed-in point, a high-frequency PIFA oscillator which extends along the other side of the signal feed-in point, a ground plane which has a height difference with the low-frequency PIFA oscillator and the high-frequency PIFA oscillator, and a short-circuit pin which is arranged on the ground plane and is used for connecting the low-frequency PIFA oscillator and the high-frequency PIFA oscillator. The low-frequency PIFA oscillator and the high-frequency PIFA oscillator are in a U-shaped structure with the whole grounding surface through short-circuit pins. Therefore, the antenna can meet the transmission requirements of signals with different frequencies at the same time, for example, in the communication field, the antenna can adapt to frequency bands corresponding to various communication standards, for example, communication equipment with different frequency bands such as WIFI 6 (the working frequency band comprises 2.4 GHz frequency band), WIFI 6E or WIFI 7 (the working frequency band comprises about 5GHz frequency band) and the like can be adapted at the same time, and the universality of the antenna is effectively improved.

[Problem] To provide: a curable silicone composition that can contain a large amount of a functional inorganic filler, provides a cured product with excellent hot-melt, gap-filling, and homogeneity properties characterized by high fluidity at high temperatures, is suitable for transfer molding and other molding or sealing processes, generates little dust, and has excellent handling workability; a manufacturing method with excellent production efficiency and homogeneity; and the like. [Solution] A granular curable silicone composition containing (A) an organopolysiloxane resin containing at least 20 mol% or more T units, (B) a curing agent, and (C) a functional inorganic filler, wherein the amount of component (C) is 400 to 3000 parts by mass relative to 100 parts by mass of component (A) and component (B), the composition is a solid at 25°C and has a melt viscosity of 200 Pa·s or less as measured by a flow tester at 180°C, and the average particle size thereof is in the range of 0.1 to 10.0 mm; and an application thereof.

The present invention aims to provide a method for producing a pattern-containing liquid and a system for producing a pattern-containing liquid each having a high flexibility in designing, in liquid, a pattern that can generate any sense such as color vision, taste, flavor, mouthfeel, or texture. The present invention relates to a method for producing a pattern-containing liquid, including discharging, using a position-controllable nozzle, a pattern-forming material in which first micro-sized particles containing a first edible organic substance are dispersed in a first liquid into a second liquid, thereby forming a pattern from the first micro-sized particles.

The invention discloses a high-bandwidth multimode optical fiber with a gradient refractive index. The multimode optical fiber sequentially comprises a core layer I, a core layer II, an inner cladding layer I, an inner cladding layer II, a sunken cladding layer, a transition cladding layer and an outer cladding layer from inside to outside in the radial direction of the multimode optical fiber, the refractive index profile of the core layer I and the core layer II is continuously and gradually changed, the refractive index profile of the inner cladding I is continuously and gradually changed, and the refractive index profile is a straight line or a curve. By improving the control opening degree of the core layer II GeCl4 mass flow controller, the defect of flow fluctuation or poor flow control consistency caused by multi-loop flow control is overcome, and the defect of poor valve opening degree repeatability under the low opening degree of the mass flow controller is improved; accurate control of the refractive index profile of the multi-mode optical fiber prepared under single dopant control flow control is achieved, the batch preparation consistency of the multi-mode optical fiber is high, and the bandwidth characteristic is excellent. The refractive index profile of the core layer II is adjusted more accurately, the DMD performance of the 20-23 [mu] m area is optimized, and the effective mode bandwidth EMB of the prepared multimode optical fiber at the wavelength of 953 nm is remarkably improved.

The invention provides a leakproof ostomy bag convenient to replace and clean, which comprises a bag body assembly and a sealing mechanism, the bag body assembly comprises an outer lining bag, a collecting bag and an ostomy base plate; wherein the collecting bag is fixedly connected to the inner side wall of the outer lining bag. The hydrocolloid dressing ring is used for absorbing wound exudate and expanding to form a gel barrier so as to improve the leakage-proof performance of the ostomy bag, the expansion characteristic of the hydrocolloid dressing ring can be used for being matched with the quick-release connecting mechanism to form mechanical pre-tightening force, and the sealing performance between the quick-release connecting mechanism and the artificial ostomy is improved; the collecting bag and the stoma base plate are connected through the quick-release connecting mechanism, so that when the stoma bag is replaced, axial stress is replaced with radial stress, or dismounting and mounting force does not directly act on the skin of a patient; or the dismounting force is concentrated in the mechanism; or a dismounting force reduction coefficient is increased; the traction force to the skin is reduced, and the disturbance to the stoma is reduced.

The application provides a sparse medical entity recognition method based on an attention mechanism, and comprises the following steps: S1, extracting a word vector through a BERT model and further extracting features by using a Bi-LSTM; S2, using an Attention mechanism to extract deep connections inside the word vector; S3, dynamically adjusting entity category weights and fusion weights in ensemble learning according to the entity sparsity characteristics of each batch; and S4, outputting a prediction result through a CRF layer. The named entity recognition model provided by the application can not only dynamically focus on difficult-to-identify samples to improve learning efficiency, but also introduce a reduction factor to reduce the interference caused by sparse entities during parameter updating. This makes the model have significantly improved performance in dealing with the problems of unbalanced entity quantity and sparse entities in medical named entity recognition.

The invention relates to the field of aquaculture, in particular to a special environment-friendly compound feed for improving the body color of pseudosciaena crocea for deep-sea net cages and a preparation method thereof. The invention discloses environment-friendly compound feed. Comprising the following preparation raw materials: 60-70 parts of a marine biological protein source, 10-15 parts of low-fat vegetable oil, 20-22 parts of soybean meal, 2-4 parts of soybean oil, 4-7 parts of fish oil, 1-2 parts of soybean lecithin, 1-2 parts of L-lysine, 8-11 parts of a Chinese herbal medicine extract, 1-2 parts of a natural plant extract pigment, 8-12 parts of a gardenia jasminoides ellis extracting solution, 4-6 parts of carboxymethylcellulose and 2-3 parts of a mineral premix. 3 to 5 parts of vitamin premix, 1 to 2 parts of choline chloride and 0.8 to 1.1 parts of probiotics. The feed not only can improve the color and growth performance of fish bodies, but also can improve immunity, optimize water quality, improve muscle quality and increase survival rate. Due to the characteristics, the feed becomes an ideal choice for large-scale culture of large yellow croakers.

Provided are: a composition for a freezer, which can decrease a friction coefficient in the friction between sliding members in a freezer; and a composition kit for a freezer, which is used for the preparation of the composition for a freezer. The composition for a freezer according to the present disclosure comprises a freezer oil, nano-diamond particles dispersed in the freezer oil, and a dispersing agent. It is preferred for the freezer oil to contain a polyvinyl ether, a polyol ester, a polyalkylene glycol, an alkyl benzene, or a mineral oil. The composition kit for a freezer according to the present disclosure comprises: a freezer oil (A) comprising a base oil and nano-diamond particles dispersed in the base oil; and a cooling medium (B).

[Problem] To provide a curable resin composition having low weight reduction ratio during heat curing for obtaining a cured product having high heat resistance, but having reduced mold shrinkage ratio and coefficient of thermal expansion, a cured product thereof, and a method of producing the curable resin composition and the cured product. Also provided is a semiconductor device using the product as a sealant. [Solution] A curable resin composition of the present invention includes: (A) a benzoxazine compound; (B) an epoxy compound; and (C) a phenolic curing agent, wherein the number of epoxy groups in the (B) epoxy compound, the number of benzoxazine rings in the (A) benzoxazine compound, and the number of hydroxyl groups in the (C) phenolic curing agent satisfy the mathematical formula (1), and the content of the (B) alicyclic epoxy compound is 3 to 12 mass% with respect to the total of the (A), (B), and (C).