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63 results about "Long-term experiment" patented technology
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A long-term experiment is an experimental procedure that runs through a long period of time, in order to test a hypothesis or observe a phenomenon that takes place at an extremely slow rate. Several agricultural field experiments have run for more than 100 years, but much shorter experiments may qualify as "long-term" in other disciplines. An experiment is "a set of actions and observations", implying that one or more treatments (fertilizer, subsidized school lunches, etc.) is imposed on the system under study. Long-term experiments therefore contrast with nonexperimental long-term studies in which manipulation of the system studied is impossible (Jupiter's Great Red Spot) or undesirable (field observations of chimpanzee behavior).
Anaerobic zero-valent iron sewage treatment method
ActiveCN101624250AImprove responseAvoid formingWaste based fuelTreatment with anaerobic digestion processesAnaerobic reactorDyeing wastewater
The invention relates to an anaerobic zero-valent iron sewage treatment method, belonging to the sewage treatment technical field. The anaerobic zero-valent iron sewage treatment places zero-valent iron in an anaerobic reactor and utilizes the environmental conditions of the anaerobic isolated air to largely reduce the formation rate of the rust of zero-valent iron and avoid the formation of hardening; meanwhile, the method uses the reducing action of metal iron to increase the anaerobic reductive atmosphere, balance the pH and increase the effect of the anaerobic organism. A circulating pump is adopted for sewage backflow so as to increase the overflow load of an iron / activated carbon layer and the reaction effect of zero-valent iron, improve the fluidization effect of sludge to increase the anaerobic process efficiency. In a sewage treatment system, ferrous iron contained in the discharged sewage is oxidized to Fe(OH)3 with the air and the coagulation generated in the process can further purify the sewage. Long-term experiment research shows that the decolorizing rate of the sewage treatment method for dye wastewater can teach 85%-95%, the COD can be reduced by more than 50% and the biodegradability can be increased to more than 0.3.
Owner:DALIAN UNIV OF TECH
Brain-machine interface method based on logic thinking and imaginal thinking
ActiveCN104635934AImprove information transfer rateImprove reliabilityInput/output for user-computer interactionGraph readingBrain computer interfacingCrowds
The invention discloses a brain-computer interface method and device based on logic thinking and imaginal thinking and relates to the field of novel pattern of brain-computer interface technology and feature extraction and classification. An experiment requires a testee for mental calculation and a three-dimensional object to rotate, signals of six electrodes are collected, and a common spatial pattern is adopted to extract feature values. Aiming at the problem that the common spatial pattern is suitable for multiple electrodes and the feature values, a common spatial filter algorithm is improved, electroencephalogram signals of one electrode are subjected to separation of different frequency bands and time periods, and the electroencephalogram signals are subjected to feature extraction calculation. The feature values are subjected to classification of a support vector machine, and excellent classification effect can be realized by the data processing mode through offline data analysis. A brain-computer interface based on logic thinking and imaginal thinking is constructed, reliability of a system is improved, experiment imaging difficulty and visual fatigue caused by long-term experiments are reduced, comfortability of the brain-computer interface system is improved, and application population range is expanded.
Owner:SOUTHEAST UNIV
Bending plate and method for producing the same
InactiveCN101474809APerformanceBest glue methodOther plywood/veneer working apparatusNon-macromolecular adhesive additivesFiberEngineering
The present invention provides a bending board and a manufacturing method thereof, which belongs to the technical field of veneer board. The bending board comprises surface boards and a middle board. The invention is characterized in that the upper surface and lower surface of middle board are set with surface boards precisely. Furthermore the wood fiber grain of surface board and wood fiber grain of middle board are distributed across. The manufacturing method comprises the following steps: selecting material, rotary cutting, board bending, drying, adhesive confecting, adhesive spreading, prepressing, hot pressing and grinding with sand. The bending board of the invention selects appropriate wood as raw material and executes strict board matching. The inherent fiber characteristic of wood is scientifically, reasonably and sufficiently. The bending board is bent randomly along with wood fiber. The manufacturing method is confirmed with an optimal adhesive confecting method after long-term experiment. The performance of bending board is more sufficiently represented through the approximate adding amount of solidifying agent and filling agent in adhesive confecting.
Owner:梁计秒 +1
Traditional Chinese medicinal composition with anti-tumor activity
ActiveCN103768534ASignificant clinical effectHas antitumor activityAntineoplastic agentsPlant ingredientsSide effectLife quality
The invention discloses a traditional Chinese medicinal composition with anti-tumor activity. The composition is prepared from the following bulk drugs in parts by weight: 30-60 parts of ginseng, 20-40 parts of radix ophiopogonis, 30-50 parts of oldenlandia diffusa, 10-40 parts of sculellaria barbata, 10-20 parts of rhizoma arisaematis, and 10-30 parts of curcuma zedoary. According to the traditional Chinese medicinal composition, the traditional Chinese medicinal prescription is screened by adopting the theory of treatment based on syndrome differentiation according to traditional Chinese medical theory, and the traditional Chinese medicinal composition is scientific and reasonable in proportion. Experiment results indicate that the traditional Chinese medicinal composition has a good effect in inhibiting tumor cell growth and promoting tumor cell apoptosis, has a strong killing effect on multiple malignant cells, and is wide in application range; pains of a tumor patient can be remarkably reduced, the living period can be prolonged, and the life quality of the patient can be improved. Long-term experiments and researches indicate that the traditional Chinese medicinal composition is high in safety and low in toxic or side effect, and can be developed into a novel anti-tumor medicine.
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
Negative temperature coefficient (NTC) temperature sensor
InactiveCN102680127ANo breakdownReasonable shape and structure designThermometers using electric/magnetic elementsUsing electrical meansElectrical resistance and conductanceNegative temperature
The invention discloses a negative temperature coefficient (NTC) temperature sensor which comprises a silica gel lead and an NTC thermistor. The end of the silica gel lead is welded to the NTC thermistor, a high temperature encapsulating rubber layer is encapsulated on the outer side of the NTC thermistor and the outer side of an exposed portion of the silica gel lead, and a high temperature potting rubber layer and a casing are sequentially wrapped on the outer side of the high temperature encapsulating rubber layer. The NTC temperature sensor has great breakthrough in NTC thermistor response time, the response time is controlled within one second, and reliability and repeatability are verified through long-term experiments. In addition, the NTC temperature sensor has high dielectric strength and can sustain 1 minute without breakdown under the voltage of 3000VAC. The NTC temperature sensor is firm, durable and stable and reliable in performance, can greatly improve service life, is installed conveniently for remote temperature measurement and control, meets requirements of industries such as food equipment and military equipment which have high requirements on temperature variation to a great extend, and fills market vacancy.
Owner:JURONG BOYUAN ELECTRONICS
Aluminum-alloy conductor material and production process thereof
InactiveCN106834836AHigh strengthGood electrical conductivityConductive materialMetal/alloy conductorsLong-term experimentCorrosion
The invention discloses an aluminum-alloy conductor material and a production process of the aluminum-alloy conductor material. An aluminum-alloy conductor comprises the following ingredients according to percentage by weight: 0.42-0.46% of Cu, 0.30-0.32% of Fe, 0.28-0.34% of Si, 0.19-0.23% of P, 0.18-0.20% of Ca, 0.16-0.20% of K, 0.09-0.15% of Mo, 0.09-0.15% of Co, 0.08-0.12% of Mn, 0.07-0.11% of Cr, 0.05-0.07% of Sn, 0.04-0.08% of Ti, 0.04-0.06% of Zn, and the balance of Al and inevitable impurities. The production process comprises smelting the ingredients of the raw material, standing, slagging off, casting, annealing in a homogenizing manner, extruding the raw material and drawing into wires, and a finished product of the aluminum-alloy conductor material is prepared finally through cleaning, shearing, straightening, inspecting and packaging. Compared with the existing aluminum-alloy conductor material, the aluminum-alloy conductor material provided by the invention is higher in strength and better in conductivity, the long-term experiment of the scientific research department shows that the tensile strength is up to 283 Mpa, the conductivity is up to 62.7% IACS, the heat resistance durability is more than 2 years under normal work at the state of 240 DEG C, and the aluminum-alloy conductor material has the advantages of strong corrosion resistance, low cost, light weight and simple and convenient production, and is suitable for power transmission outdoors.
Owner:沈阳新海合金新材料有限公司
Automatic passage type cell long-term experiment integrated module capable of being used for observing on line in real time
ActiveCN104946530ARealize automatic cultivationRealize the experimentBioreactor/fermenter combinationsBiological substance pretreatmentsControl systemCell culture media
The invention relates to a compact cell experiment module, namely an automatic passage type cell long-term experiment integrated module capable of being used for observing on line in real time, which not only has a function of updating an autonomous cell culture medium and a reagent and has an automatic passage ability to realize a long-term cell culture experiment, but also can be used for performing an individualized culture experiment and automatic sampling on cell samples of different culture rooms and can be used for observing the cell growth condition on line in real time. The automatic passage type cell long-term experiment integrated module comprises a reagent component, a culture medium component, a cell culture plate, a base, a multi-branch fluid driven flow path, an image system and a control system. The passage type cell long-term experiment integrated module provided by the invention not only has the function of updating the autonomous cell culture medium and the reagent and has the automatic passage ability of realizing the long-term cell culture experiment, but also can be used for performing the individualized culture experiment and automatic sampling on the cell samples of the different culture rooms and can be used for observing the cell growth condition on line in real time.
Owner:SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
Rainfall test box
InactiveCN110044805AImprove the simulation effectImprove the experimental effectWeather/light/corrosion resistanceEnvironmental/reliability testsLong-term experimentContinuous simulation
The invention discloses a rainfall test box, comprising a box body, a transparent glass door, an air inlet cylinder, a first transparent glass plate, a first scale line, a material mixing cylinder, amaterial mixing motor, a burdening cylinder, a second transparent glass plate, an air inlet fan, a filtering plate, a spray component, a leakage plate, a water inlet, a stirring rod and a discharge valve. The rainfall test box disclosed by the invention is provided with the material mixing cylinder and the burdening cylinder, and is provided with the first scale line and a second scale line, so that matching simulation can be performed according to the pH of the rainwater, the simulation effect is improved, the rainfall test box is provided with the spray component to perform movable spray, sothat multi-angle movable spray can be performed, the rainwater spray state in a natural state can be simulated, the simulation state is diversified, the simulation effect is good, the rainfall test box is provided with the air inlet fan to achieve a cooperative simulation state of the wind power of the spray, so that the test effect is improved, and the rainfall test box is provided with a transfer water pump to achieve the self-circulation of the water in the test box, so that a lot of water resources are saved under a long-term experiment, and long-term continuous simulation can be performed.
Owner:湖北高天试验设备有限公司
Anti-Claudin18A2 chimeric antigen receptor, T cell modified thereby, and preparation method and application of T cell
ActiveCN109206524AExpand attack rangeImprove immunityImmunoglobulin superfamilyImmunoglobulins against cell receptors/antigens/surface-determinantsAntigen receptorsAntigen binding
The invention discloses an anti-Claudin18A2 chimeric antigen receptor, a T cell modified thereby, and a preparation method and application of the T cell. The anti-Claudin18A2 chimeric antigen receptorcomprises a CD8alpha leader, a Claudin18A2 antigen binding region, a Hinge region and a transmembrane region of CD8, a co-stimulation region of 4-1BB and CD28, and a signal transduction region of CD3zeta. After long-term experiments, the Claudin18A2 target is creatively selected and the knockout of PD-1 protein in a T cell is cooperatively implemented, so the modified T cell can be improved in the therapeutic effect on digestive system tumors, especially on gastric cancer.
Owner:SHANDONG XINRUI BIOTECH CO LTD
Purification method of avian leukosis
InactiveCN107549099AReduce infection rateThe purification effect is twice the result with half the effortAnimal husbandryPurification methodsOrganism
The invention relates to a purification method of avian leukosis. The method comprises the following steps that 1, a biological safe system is built; 2, delicacy management in the production process is conducted; 3, the purification procedure of the avian leukosis is conducted. Through long-time experiment, purification of the avian leukosis is conducted by using the purification method, the positive rate of the avian leukosis of all-strain avians is smaller than 1%, the Tiejiaoma strain reaches the negative, and the effect is remarkable; compared with the three purification steps of reduction, control and eradication of the avian leukosis in the prior art, eradication of the avian leukosis is regarded as a target of the purification method of the avian leukosis at the very start, all procedures and measures are conducted according to strictest standards, double results are achieved with half effort, and the purification method is worthy of application and popularization.
Owner:FOSHAN CITY GAOMING DISTRICT XINGUANG AGRIAND ANIMAL HUSBANDRY
Fountain solution filtering method and device for printing
InactiveCN101380856AFresh mixed stateReduce usageCylinder pressesPrinting pre-treatmentFiltrationProcess engineering
The invention relates to a filtration method for dampening solution used printing and a device thereof. By adopting the method, the dampening solution used for printing in an external circulation loop is inhaled mainly utilizing the pneumatic principles, and then the dampening solution is filtered by the corresponding filtration device for pneumatic dampening solution. The filtration device for the pneumatic dampening solution comprises a filter, a regulator and a shell, wherein, the filter is arranged on the shell, the regulator is arranged inside the shell, furthermore, the filter is connected with the regulator. Proved by long term experiments of researchers, the service life of the dampening solution which is filtered by the method of the invention is six times more than the service life of ordinary dampening solution which is not filtered. In addition, less chemical is used in the invention and exhaust emission and the cost of tail gas treatment is reduced greatly.
Owner:YONGLIAN PRINTING CONSUMABLES SHENZHEN
Coating material for complex tablets and preparation method thereof
ActiveCN102526743APrevent precipitationSolving Film Coating ProblemsPharmaceutical delivery mechanismPharmaceutical non-active ingredientsAcrylic resinGlycerol
The invention relates to a coating material for complex tablets and a preparation method thereof. The coating material is composed of following raw materials by weight: 3 parts to 8 parts of acrylic resin solution, 12 parts to 20 parts of red iron oxide injectable suspension, 1 part to 5 parts of glycerol, 1 part to 5 parts of talcum powder and 60 parts to 80 parts of purified water. The complex tablet thin membrane coated tablet made of the coating material is even in tablet surface color and strong in coating membrane adhesion. Accelerated tests and long term experiments show that the coating material is good in humidity resistance, can effectively prevent volatile element borneol from sublimating and dissolving out, and guarantees quality stability of products in an efficacy period.
Owner:ZHENGZHOU RUILONG PHARMA
Cultivating method capable of promoting root development of flue-cured tobacco at earlier stage of growth
InactiveCN109042208AGood physical propertiesAdd depthClimate change adaptationWatering devicesRoot systemLong-term experiment
The invention discloses a cultivating method capable of promoting root development of flue-cured tobacco at the earlier stage of growth. The cultivating method comprises the steps of soil preparation,fertilization, ridging, film coating and transplanting. According to the cultivating method, on the basis of long-term experiments and demonstrations, the cultivating method capable of promoting rootdevelopment of the flue-cured tobacco at the earlier stage of growth is set up, early growth and quick development of tobacco plants at the root extending stage are accelerated by means of the cultivating method, coordination of root growth and tobacco plant growth is promoted, the drought resisting capacity of the tobacco plants is enhanced, the quality and grade structure of the flue-cured tobacco are improved, and high popularization value is achieved.
Owner:INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
Artificial carassius auratus breeding method
ActiveCN104145853AImprove stress resistanceIncrease growth rateFood processingClimate change adaptationAnti stressSide effect
The invention provides an artificial carassius auratus breeding method, and relates to the field of aquaculture. The artificial carassius auratus breeding method comprises the following steps that pond cleaning and disinfection treatment are carried out on a fish pond before fries are put into the pond, water is injected into the fish pond, the fires are put in the pond one week after water injection, shrimps and snails are put in the fish pond; the fries are fed with a mixed feed with the protein content ranging from 39% to 40%, 10-20 kg of quicklime is put in the fish pond per mu according to the water quality conditions to regulate water quality, and the fish pond is replenished with fresh water at fixed periods. According to the artificial carassius auratus breeding method, additives are added into the mixed feed and achieve the effects of feeding promotion and growth promotion, source of raw materials of the additives is stable, the smell and taste requirements of carassius auratus for the mixed feed can be met, and the ingestion speed and feed intake are increased remarkably; the effective constituents and ratio of the additives of the feed are optimized by the inventor through long-time experiments, the feed promotion effect can be enhanced, the anti-stress capacity and the growth rate of carassius auratus can be remarkably increased, and the feed coefficient is reduced; the additives of the feed are safe, efficient and free of toxic and side effects in long-term use.
Owner:株洲杨家寨农业科技股份有限公司
Donkey-hide gelatin-rose mixed wine and production method thereof
The invention discloses donkey-hide gelatin-rose mixed wine and a production method thereof. The formula of the mixed wine consists of the following materials in percentage by weight: 10 to 30 percentof donkey-hide gelatin, 6 to 12 percent of rose, 3 to 7 percent of wolfberry fruit, 3 to 7 percent of Chinese date and 30 to 90 percent of distilled liquor. According to the production method, the steps are simple, the production method is convenient to operate, the materials of the composite mixed wine disclosed by the invention are medicinal and edible, and an experiment proves that the mixed wine has a good therapeutic effect. Medicinal material soaking time and repeated liquor sterilization and filtration are finalized by a long-term experiment. The wine undergoes repeated sterilization and filtration, so that substances which can cause turbid sediment can be removed from the wine, so that the effect of increasing the quality and clarity of the wine is achieved. The composite mixed wine disclosed by the invention can relieve symptoms, such as menoxenia, gynecological diseases, fatigue and weakness caused by deficiency of Qi and blood and liver depression.
Owner:SHANDONG RUIZHI BIOTECH
Rhizoma polygonati-oyster compound wine and preparation method
InactiveCN106497751AQuality improvementHigh clarityDigestive systemAlcoholic beverage preparationNervous systemSide effect
The invention discloses rhizoma polygonati-oyster compound wine and a preparation method. The rhizoma polygonati-oyster compound wine is prepared from the following raw materials by weight percent: 1-2% of rhizoma polygonati, 1-1.2% of oysters, 0.5-1.5% of fructus lycii, 0.4-0.8% of ginseng, 0.4-0.8% of orange peel, 0.5% of deer's sinew, 0.4% of deer's tail and the balance of Baijiu. According to the compound wine disclosed by the invention, the raw materials are medicinal and edible, and a relatively good curative effect is proved by experiments. The soaking time of the medicinal materials and the medicine liquid of two-level filtration are both finally determined by long-term experiment. Through two-level filtration of the wine liquid, the substances leading to turbid sediment in the wine can be removed to achieve an effect of improving the quality and clarity of the medicated wine. The compound wine disclosed by the invention is suitable for the following sub-health people: people with digestive tract diseases, people with senile diseases, people with nervous system functional diseases, people with low immunity, people with kidney-deficiency emission, night sweat and weak male power. The rhizoma polygonati-oyster compound wine causes no toxic or side effect.
Owner:李闯
Regulating device for simulating rat body fluid distribution in weightless state
InactiveCN106212301AKeep weightlessKeep diet freeAnimal watering devicesAnimal feeding devicesAviationEngineering
The invention discloses a regulating device for simulating rat body fluid distribution in a weightless state, and belongs to the technical field of aviation biomedical engineering. The regulating device comprises a lower limb body position regulating control unit, a diet activity platform, a beam, a hanging rod, a tank and a drinking water bottle, wherein the tank is of a rat cage, the drinking water bottle is arranged on the outer side wall of the tank, and the diet activity platform is fixed into the tank. Two parallel rails are arranged on the top wall of the tank, the beam is hung below the rails, the hanging rod is hung below the beam, two ropes are hung on the hanging rod, and the other ends of the ropes are hung on the lower limb body position regulating control unit. The rear limb hanging weightless state and free diet of rats are ensured, blood supply can be changed by regulating rear limb body positions of the rats, and an excellent model method is provided for researching the influence of blood on weightless bone loss. The method used by the device is simple to operate, the rats cannot be wounded, and long-term experiments can be performed.
Owner:BEIHANG UNIV
Traditional Chinese medicine composition with skin ageing delaying function, aqueous extracts and yeast thereof and application
ActiveCN109394850ADelay agingPromote growthCosmetic preparationsToilet preparationsWrinkle skinSide effect
The invention relates to the technical field of traditional Chinese medicine compositions for delaying skin ageing, in particular to a traditional Chinese medicine composition with a skin ageing delaying function, aqueous extracts and yeast thereof and application. In order to achieve the skin ageing delaying aim, with the traditional Chinese medicine theory in China as the guidance, through lotsof long-term experiments, traditional Chinese medicine raw materials are screened, radix codonopsis, radix pseudostellariae, fiveleaf gynostemma herb, licorice root and cortex moutan are effectively combined together, the extracts prepared through water extraction and the yeast prepared from the composition through yeast fermentation can directly act on skin, no toxic or side effects exist, use issimple and safe, and the effect is mild. The composition has effects of repairing skin exogenous ageing damage, promoting skin cell growth, removing free radicals and resisting oxidization, wrinklescan be reduced, and the composition has the remarkable function of delaying skin ageing.
Owner:温州古木生物科技有限公司
Method for constructing spontaneous hyperuricemia mouse model and application of mouse model
InactiveCN104388467AProlong survival timeAbsence of fatal hyperuricemiaMicroinjection basedAnimal husbandryWild typeBlood urate level
The invention discloses a method for constructing a spontaneous hyperuricemia mouse model. The method for constructing the spontaneous hyperuricemia mouse model provided by the invention comprises the following step: knocking out urate oxidase genes of a target mouse by utilizing transcription activator-like effector nuclease to obtain a homozygote mouse from which the urate oxidase genes are knocked out, namely the spontaneous hyperuricemia mouse model. Experiments prove that the serum uric acid level of the spontaneous hyperuricemia mouse model obtained by the method disclosed by the invention is 3-4 times that of a wild type mouse and achieves the hyperuricemia level, and the pathogenesis of spontaneous hyperuricemia is better simulated. In addition, as the serum uric acid level of the mouse model obtained by the method disclosed by the invention is lower than the ultrahigh-level serum uric acid value reported in the previous literature, the lethal hyperuricemia does not exist, and the survival time of the mouse is long, so that long-term experiment of the mouse is facilitated.
Owner:李长贵
Method for drying honeycomb type denitrated ceramic catalyst
The invention discloses a method for drying a honeycomb type denitrated ceramic catalyst and belongs to the technical field of catalysts for the selective catalytic reduction method. The method for drying the honeycomb type denitrated ceramic catalyst comprises the first drying step of drying the honeycomb type denitrated ceramic catalyst through a drying device and the second drying step of drying the honeycomb type denitrated ceramic catalyst through a drying device. According to the method for drying the honeycomb type denitrated ceramic catalyst, the whole drying process is conducted in a circulating mode, no waste gas is generated, and environmental pollution is avoided; heat is fully utilized, the drying capacity is high, long-term experiment results show that the drying yield reaches 91%, energy is saved, and the production cost is also reduced.
Owner:GUANGXI MEIZHIFENG TECH
Anaerobic zero-valent iron sewage treatment method
ActiveCN101624250BImprove responseAvoid formingWaste based fuelTreatment with anaerobic digestion processesAnaerobic reactorDyeing wastewater
The invention relates to an anaerobic zero-valent iron sewage treatment method, belonging to the sewage treatment technical field. The anaerobic zero-valent iron sewage treatment places zero-valent iron in an anaerobic reactor and utilizes the environmental conditions of the anaerobic isolated air to largely reduce the formation rate of the rust of zero-valent iron and avoid the formation of hardening; meanwhile, the method uses the reducing action of metal iron to increase the anaerobic reductive atmosphere, balance the pH and increase the effect of the anaerobic organism. A circulating pumpis adopted for sewage backflow so as to increase the overflow load of an iron / activated carbon layer and the reaction effect of zero-valent iron, improve the fluidization effect of sludge to increasethe anaerobic process efficiency. In a sewage treatment system, ferrous iron contained in the discharged sewage is oxidized to Fe(OH)3 with the air and the coagulation generated in the process can further purify the sewage. Long-term experiment research shows that the decolorizing rate of the sewage treatment method for dye wastewater can teach 85%-95%, the COD can be reduced by more than 50% andthe biodegradability can be increased to more than 0.3.
Owner:DALIAN UNIV OF TECH
Crucian breeding method
InactiveCN107667920AImprove stress resistanceIncrease growth rateFood processingClimate change adaptationFood additiveAnti stress
The invention discloses a crucian breeding method, and relates to the field of aquaculture. The method comprises the following steps that a fish pond is cleaned and disinfected before fry are bred; water is injected into the fish pond; one week after water injection, the fry are bred; shrimps and snails are bred in the fish pond; the fry are fed with mixed feed with the protein content of 39-40%;the water quality is controlled according to the water quality condition of the fish pond by using 10-20 kg of quick lime per mu; fresh water is regularly supplemented into the fish pond. According tothe artificial crucian breeding method, additives are added into the mixed feed, so that the feed has the function of inducing food taking and promoting growth; the raw materials of the additives arestable in source so that the small and gustation requirements of crucian for the compound feed can be met, and the feeding speed and the food intake are obviously increased; the effective componentsand proportions of the feed additives are optimized by the inventor in long-term experiments, the anti-stress capability and growth speed of the crucian can be remarkably improved while the food calling performance is improved, and meanwhile the feed coefficient is reduced; the feed additives are safe and efficient and have no toxic and side effects after long-time use.
Owner:李金城
Oxiracetam enteric-coated preparation and preparation method thereof
InactiveCN109718222ALow dissolution rateGood storage stabilityOrganic active ingredientsNervous disorderEnteric-coated granulesDissolution
The invention provides an oxiracetam enteric-coated capsule. Oxiracetam in special crystallization form is used as an active component. A composite carrier containing polyoxyethylene PEO and hydroxypropyl methyl cellulose ( or polyvinylpyrrolidone) in the mass ratio of the polyoxyethylene PEO to the hydroxypropyl methyl cellulose being (1-3) to 1, is carefully selected, and the prepared oxiracetamenteric-coated preparation can reduce the dissolution rate of the active component in the stomach, and also has favorable slow control slow release properties and storage stability. The prepared oxiracetam enteric-coated granules are subjected to long-term stability test under the condition that the temperature is 25 DEG C+ / -2 DEG C, and the relative humidity is 60%+ / -10%, and after long-term experiment for 24 months, sample properties, content and related substances all conform to specification. The oxiracetam enteric-coated capsule is good in stability, and long in quality guarantee period.The preparation method is simple, and suitable for industrial production.
Owner:CHONGQING RUNZE PHARM CO LTD
Remediation of heavy metal contaminated soil by asymmetrical alternating current electrochemistry
ActiveUS20200324326A1Fast repairChemical cost reductionSolvent extractionContaminated soil reclamationSoil scienceAC - Alternating current
Soil contamination by heavy metals constitutes an important environmental problem, whereas field applicability of existing remediation technologies has encountered numerous obstacles, such as long operation time, high chemical cost, large energy consumption, secondary pollution, and soil degradation. A design and demonstration of a method is provided which is based on asymmetrical alternating current electrochemistry (AACE) that achieves high degrees of contaminant removal for different heavy metals (Cu, Pb, Cd) at different initial concentrations (from 100 to 10,000 ppm), all reaching corresponding regulation levels for residential scenario after rational treatment time (from 30 min to 6 h). No excessive nutrient loss in treated soil was observed and no secondary toxic product was produced. Long-term experiment and plant assay showed the high sustainability of the method and its feasibility for agricultural use.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV
Feed additive for artificial culture of aristichthys nobilis
ActiveCN104171544AGrowth-inducingSafe and efficient for long-term useClimate change adaptationAnimal feeding stuffBetaineFeed additive
The invention provides a feed additive for the artificial culture of aristichthys nobilis and relates to the field of aquaculture. The feed additive for the artificial culture of the aristichthys nobilis is prepared from the following raw materials in parts by weight: 6 parts of dried ginger powder, 3 parts of clove, 2 parts of foeniculum vulgare, 3 parts of peach flower essential oil, 5 parts of non-glutinous rice powder, 6 parts of medicated leaven powder, 4 parts of allicin, 11 parts of lysine, 2 parts of glycine, 2 parts of sodium glutamate, 6 parts of glycine betaine, 12 parts of kelp powder and 8 parts of field snail meal. The feed additive for the artificial culture of the aristichthys nobilis has food calling and growth promoting effects, the source of raw materials is stable, the requirements of the aristichthys nobilis to smell and taste of a compound feed can be met, and the feeding speed and the food intake can be obviously increased; active ingredients and the proportion of the feed additive are optimized by the inventor during long-term experiments, the food calling property is enhanced, the anti-stress property of the aristichthys nobilis is obviously improved, the growth speed of the aristichthys nobilis is obviously increased, and the feed coefficient is also reduced; the feed additive is safe and efficient and produces no toxic and side effects after being used for a long time.
Owner:山西神聚鱼饵有限公司
Tin ring fusion welding process for socket
InactiveCN103752969AReduce manufacturing costWill not polluteSoldering apparatusWelding/soldering/cutting articlesAtmospheric pressureSoldering
The invention discloses a tin ring fusion welding process for a socket. A tin ring is self-fluxed into liquid, and the liquid flows into the periphery of the joint surface of a sintered piece and infiltrates a clad layer of a socket shell in order to seal the joint surface of the sintered piece and the socket shell. In an implementation process, any soldering flux is not needed, thereby preventing the surfaces of parts of the socket from being polluted and greatly reducing the production cost of the socket. The socket can withstand long-term experiments under the condition that the air pressure difference surpasses 25bar, and is high in leak resistance.
Owner:中普天诚(天津)科技有限公司
Injection liquid for treating brain traumas and disturbance of consciousness after brain operation and preparation method of injection liquid
InactiveCN106074366AQuality improvementSimple processOrganic active ingredientsNervous disorderForeign matterCarbonization
The invention belongs to the technical field of medicine and particularly relates to injection liquid for treating brain traumas and disturbance of consciousness after a brain operation and a preparation method of the injection liquid. The injection liquid is mainly prepared from active ingredients including edaravone, sodium chloride, cysteine hydrochloride, disodium glycyrrhizinate, methylparaben, a pH regulation agent and injection water. The prepared injection liquid is free of bubbles, adhesion of bubbles on an ampoule mouth is avoided, the phenomenon that visible foreign matter is not qualified due to carbonization of medicine liquid in the high-temperature sealing process is effectively avoided, the injection liquid is stable in mass and simple in process, and it is inspected through long-term experiments that all indexes meet specifications.
Owner:邢涛
A kind of bream artificial breeding method
ActiveCN104145852BImprove stress resistanceIncrease growth rateClimate change adaptationPisciculture and aquariaFish stockingFood additive
Owner:徐州佳兆农业科技有限公司
Laser positioning type liquid transferring gun
The invention discloses a laser positioning type liquid transferring gun. The laser positioning type liquid transferring gun comprises a main gun body, wherein a directional air conveying device is arranged on the main gun body and communicated with the inside of the main gun body; the main gun body comprises a gun body; a handle part of the gun body is provided with a liquid absorbing button and a liquid discharging button which are electrically connected to the directional air conveying device; a control table is also arranged on the gun body; a groove is formed in the tail end of the gun body of the main gun body, is connected to a liquid transferring tube and is parallel to the handle; the groove is communicated with the directional air conveying device; the inner top of the groove is provided with a laser transmitter and a laser sensor which are electrically connected to the control table. The laser positioning type liquid transferring gun is novel in structure, small in size and light in weight, can be held in the hand, is convenient and practical and is capable of relieving fatigue caused due to long-term experiment and tension caused due to intensive concentration.
Owner:SHANDONG UNIV QILU HOSPITAL
Experimental platform for chemical experiments for high school students
InactiveCN108686731ASimple preheatingAvoid breakingLaboratory benches/tablesEngineeringInstrumentation
Owner:SHANDONG UNIV OF SCI & TECH
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