50results about How to "Keep it pristine" patented technology

The invention discloses bean curd and a bean curd production method. The bean curd production method comprises the following steps: preparing soybean milk; and mixing the soybean milk with a coagulant, coagulating to obtain bean curd. The preparation of the soybean milk comprises 1) adopting soybean cotyledon particles to serve as a raw material after breaking, embryo removal and soybean skin removal; 2) grinding after soaking the soybean cotyledon particles in water for 30-60 minutes, removing bean dregs after grinding so as to obtain raw soybean milk, and enabling the weight ratio between the cotyledon particles and water for soaking the cotyledon particles to be 1:6-11 during soaking; and 3) boiling the raw soybean milk, maintaining the temperature at over 85 DEG C for 30-45 minutes toobtain the soybean milk. The bean curd production method is scientific and simple, overcomes various shortcomings in the prior art, enables coagulating process of the soybean milk to be effectively adjusted, is favorable for achieving industrialized production of bean curd, and has the advantages of saving energy, simplifying equipment and reducing sewage discharge. Besides, the quality of the produced bean curd is equal to or close to that of northern bean curd.

The invention discloses a blockchain data sharing method, a system and a device and a medium. The method comprises the following steps: creating member institutions in a blockchain; according to the member institutions, carrying out initialization processing on blockchain nodes, and creating a data chain, a rule chain and an application chain in an alliance chain; standardizing a data source of the data institution, and auditing and registering a standardized processing result through the supervision institution; issuing metainformation and authority rules of a target data source to the blockchain through a first data institution, and adopting the supervision institution to confirm the target data source and then issues the target data source to the data chain; adopting a secret key encryption method to initiate a data request to the target data source by a second data institution, and obtaining the target data source; and determining evaluation information of the target data source bythe second data institution, and storing the evaluation information in the application chain. Data privacy can be protected, data sharing efficiency can be improved, and the method can be widely applied to the technical field of block chains.

The invention relates to a dynamic balance measuring machine, which comprises a stand. A gear box is arranged at the stand, an input shaft and an output shaft are arranged in the gear box, the output shaft is connected with a main shaft of an electric jigger through a clutch, and a main shaft of the electric jigger is driven by an electric motor to rotate forwards and reversely; and a speed change mechanism is arranged between the input shaft and the output shaft in the gear box, and the speed change mechanism comprises a speed change gear and a gear selecting device which are engaged with each other. The invention mainly provides the dynamic balance measuring machine in which the gear box has wide working range and comparatively high raising speed, can bear positive and negative torque, carries out bidirectional measurement and control, and is applied to large-vibration environment; and the dynamic balance measuring machine solves the technical problems that the dynamic balance measuring machine has limited application range, can only bear unidirectional torque and carries out unidirectional measurement and control in the prior art.

The invention relates to a method for preparing an enzyme by using honeysuckle and curcuma longa as main raw materials. The method specifically comprises: (1) selecting 35-45 parts by weight of honeysuckle, 10-15 parts by weight of musa basjoo siebold, 10-15 parts by weight of pineapple, and 10-15 parts by weight of clausena lansium, and washing with clear water so as to be spare; (2) peeling the clausena lansium to expose the flesh, cutting the pineapple with the peel and the musa basjoo siebold with the peel into pineapple slices with the thickness of 1-2 cm and musa basjoo siebold slices with the thickness of 1-2 cm, and uniformly mixing the slices to obtain a mixture; (3) placing the mixture into a sealed container, adding honey and water, uniformly mixing, placing into a room, carrying out sealed fermentation at a room temperature, and maintain for 1 month, wherein stirring is performed everyday at the starting 5-7 days and stirring is performed every 7 days at the later days; and (4) washing fresh curcuma longa picked before and after winter solstice, cutting into curcuma longa slices with the thickness of 0.3-2 cm, taking 15-25 parts by weight of the curcuma longa slices, adding to the sealed container, and carrying out sealed fermentation for more than 3 months so as to obtain the product. According to the present invention, the enzyme prepared through the method has advantages of original food function maintaining, rich probiotics, rich nutrition, good taste, and long shelf life.

The invention belongs to the technical field of radioactive substance preparation, and relates to a freely combined low enriched uranium foil target with multiple single pieces. The freely combined low enriched uranium foil target is used for producing fission <99> Mo by means of irradiation. The freely combined low enriched uranium foil target comprises a target barrel, low enriched uranium foils, a target core plug, a pressure plug and sealing covers. The target core plug is placed in the hollow target barrel, so that the multiple pieces of freely combined low enriched uranium foils can be compressed between the inner wall of the target barrel and the target core plug; the target core plug is compressed by the pressure plug in the target barrel from the upper side of the target core plug; two ends of the target barrel are sealed by the sealing covers by means of welding. The freely combined low enriched uranium foil target with the multiple single pieces has the advantages that processes for preparing the freely combined low enriched uranium foil target can be simplified, the irradiation efficiency can be improved, self-shielding can be reduced, the freely combined low enriched uranium foil target is safe in reactor irradiation periods and is easy to release in follow-up procedures, and the quality of the produced <99> Mo can be guaranteed.

The invention discloses a method for preparing enzyme by using lemons and galangal as main materials. The method comprises the specific steps that 1, 35-45 parts of lemons, 15-20 parts of galangal, 2-5 parts of turmeric, 8-15 parts of rhizoma zedoariae, 8-15 parts of grapefruit and 8-15 parts of musa basjoo are selected and cleaned for usage; 2, the lemons are firstly extruded to make peels broken and expose pulp, then the galangal, the turmeric, the rhizoma zedoariae, the grapefruit and the musa basjoo are cut into galangal slices, turmeric slices, rhizoma zedoariae slices, grapefruit slices and musa basjoo slices which are 0.3-2 cm in thickness, and then the materials are mixed evenly to obtain a mixture; 3, the mixture is put in a sealed container, honey and water are added for even mixing, then the mixture is put in a room, sealed fermentation is performed under room temperature condition, one time of stirring is performed every day in previous 5-7 days, later one time of stirring is performed every 7 days, the cycle is kept for one month, then sealing is performed, and fermentation continues for 6 months. The enzyme prepared by adopting the method retains the effects of original foods, is rich in probiotics and nutrition and long in shelf life and has a good taste.

The present invention relates to a method for processing soybean (or soya) material, which is mainly a mixture of soybean hypocotyls and soybean cracks. In particular, the present invention provides a method for separating a soybean hypocotyl fraction from a soybean crack fraction based on a difference in form, by subjecting said soybean material to a centrifugal force, preferably by use of an indented cylindrical device. On beforehand, it is preferable to remove the main part of the soybean hulls, soybean cotyledons, whole soybeans, and the larger soybean crack fraction from the soybean material by means of traditional separation methods based on differences in size and/or weight (e.g. aspiration). The invention also provides a soybean hypocotyl concentrate and uses thereof, e.g. for the preparation of a soybean hypocotyl (or germ or embryo) oil and/or food products.

The invention discloses a double strain co-immobilized fermented papaya wine and a preparation method thereof. The preparation method comprises the steps of papaya selection, cleaning, peel and seed removing, breaking, pulping, enzymolysis, centrifugation, ingredient regulating, pasteurization, cooling, immobilized saccharomyces cerevisiae and aroma producing yeast fermentation (primary fermentation), clarification, filtration, secondary fermentation, ageing, blending, filtration, ultrafiltration membrane purification, filling and finished product obtaining. According to the double strain co-immobilized fermented papaya wine and the preparation method thereof, the problems that in the papaya mature season, the amount of papayas is large, the papayas are not prone to storage, for traditional fermentation wine, operation is tedious, and strains are prone to inactivation can be effectively solved; the papayas can be used for continuously producing fruit wine on a large scale, the production cycle is shortened, the production capacity is improved, the strains can be reused, and the production cost is reduced; the obtained papaya wine has the advantages that the papaya wine is clear and transparent, the color and luster are stable and orange yellow, the fragrance of papayas is prominent, the papaya wine is rich in fragrance, soft in taste and beneficial for digestion and absorption of foods by human bodies, and the effects of invigorating spleen to promote digestion and prolonging life are achieved.

The invention discloses an undisturbed soil sampler, which comprises an inner drilling rod, a rotary handle and an inner drilling bit respectively connected with the upper and lower ends of the innerdrilling rod, an outer drilling bit sleeved outside the inner drilling bit, an outer drilling rod sleeved outside the inner drilling rod and connected with the outer drilling bit, a hammering platformconnected with the top end of the outer drilling rod, a round hammer and a sample storage box, wherein a plurality of plug holes are formed in the inner drilling rod and the outer drilling rod, and the inner drilling rod and the outer drilling rod penetrate through the plug holes through a plug to fix the inner drilling rod and the outer drilling rod; a seal is arranged at the top of the inner drilling bit, an exhaust hole is formed in the side wall, and a plurality of knife edges are arranged at the bottom, the inner drilling bit drills through the knife edges, blocks the soil from enteringthe inner drilling rod through the seal, and exhausts air of the inner drilling bit through the exhaust hole; the round hammer impacts the hammering platform after removing the rotary handle and pulling out the plug, so that the outer drilling bit continues to drill along with the outer drilling rod; a convergent opening is formed in the bottom of the outer drilling bit to collect the soil; and the sample storage box is aligned with the convergent opening to store soil in the outer drilling bit. The device is low in cost, simple and practical, accurate in sampling and easy to carry.

The present invention discloses a preparation method of a fish bait preservative cultivated by a bioengineering technology. The preparation method comprises a mother seed selecting and cooling step, adistilling and material preparing step of fermented grains, an inoculating step, a detecting step and a packaging step. The manufacture principles of the fish bait preservative manufactured by usingthe method are as follows: high-quality distiller's yeasts are optimized to obtain associate strains of yeasts, lactic acid bacteria and enzymes thereof; high-quality starch is used as a main material; plant proteins and plant fibers are auxiliary materials; the materials and water are heated to be gelatinized; a prepared medium is subjected to oxygen-controlled fermentation and cultivation; activity of alpha-amylase is artificially regulated; and thus through the combined actions of the micro-organisms, enzymes and biocatalysts and through a series of complex biochemical reactions, polysaccharides, hyaluronic acid and other components keeping cell activity of animal and plant tissues and conducting repairing of damaged cells are finally formed. The formed fish bait preservative has uniquepreservation, antiseptic and anti-oxidation effects.

Provided is a method for preparing enzymes with smoked plum and turmeric as principal raw materials. The method comprises the steps of (1) selecting, by weight, 35-45 parts of smoked plum, 10-15 parts of bananas, and 10-15 parts of pineapples, and cleaning the materials with clean water to be standby application; (2) firstly, squeezing the peel of the smoked plum to expose the pulp, cutting the pineapples and the bananas with peel into pineapple slices and banana slices both with a thickness of 0.3-2 centimeters; then mixing the materials evenly to obtain a mixture; (3) putting the mixture in a sealed container, adding honey and water into the mixture and mixing the new mixture evenly, wherein the weight ratio of the mixture, the honey and the water is 3:1:10; then putting the new mixture in a room under the normal temperature to be subjected to sealed fermentation, in the first 5-7 days, stirring the new mixture once every day, afterwards stirring the new mixture once every 7 days, keeping doing so for one month; (4) cleaning and cutting fresh turmeric dug around the time of the winter solstice into turmeric slices with a thickness of 0.3-2 centimeters, measuring, by weight, 15-25 parts of the turmeric slices and adding the turmeric slices into the sealed container to be subjected to sealed fermentation, the enzymes are obtained after above three months. According to the method for preparing enzymes with smoked plum and turmeric as principal raw materials, the obtained enzymes retain functions of original food, are rich in probiotics, and have abundant nutrition, good taste and a long shelf life.

The invention relates to an enzyme spectrum method for determining two-dimensional spatial distribution of activity of aquatic plant rhizosphere phosphatase, which comprises the following steps of constructing an enzyme spectrum imaging system, drawing an enzyme spectrum calibration curve, and actually determining two-dimensional distribution of activity of aquatic plant rhizosphere acid and alkali phosphatase in sediments.The original state of phosphatase in the sediment is kept, the in-situ activity of the aquatic plant phosphatase in the sediment can be reflected more truly, polyacrylamide gel is used as a diffusion layer, transverse diffusion of a substrate and a fluorescent marker in the gel can be reduced by reducing the thickness of the membrane, and the spatial resolution is improved.

The invention discloses a characterization method for a porous structure of a regenerated cellulose material. The characterization method comprises the following steps: firstly, soaking regenerated cellulose into liquid and oscillating; secondly, carrying out nuclear magnetic relaxation hydrogen spectrum test on the regenerated cellulose treated in the first step; thirdly, carrying out inverse laplace transformation on a nuclear magnetic relaxation attenuation curve obtained by the nuclear magnetic relaxation hydrogen spectrum test to obtain parameters for characterizing the porous structure of the regenerated cellulose. According to the characterization method disclosed by the invention, the relationship that relaxation time (logarithms and horizontal coordinates) is in direct proportion to the content of pores (longitudinal coordinates) can be obtained, therefore, the sizes of the pores can be qualitatively explained; if specific values of the sizes of the pores need to be determined, different formulas are adopted for calculating according to difference of samples. According to the characterization method disclosed by the invention, drying or freeze-drying treatment of samples is not needed, so original states of the samples can be well kept.

The invention discloses a method for dissecting the pupa brain of a lepidopteran insect dead by freezing but with undamaged brain. The method comprises the following steps: after the skull of a pupa is cut off, the plasma in the skull is washed by cold physiological liquid, the brain in the skull of the pupa is fixed by fixing liquid after the brain is exposed, the membrane attached to the skull is clamped off, and then the formed brain is dissected out to obtain complete brain tissue. Compared with the prior art, the whole lepidopteran insect pupa brain can be obtained, the original state ofthe ultrastructure in the brain is completely maintained, structural damage is avoided, and the method is beneficial to obtaining of good results in a next experiment.

A special throwing cold weapon for teaching, which relates to the technical field of physical education teaching equipment, is composed of an outer shell, an inner shell, a cover, a connecting pipe, a holding tank and a support column, and an inner shell is arranged in the outer shell, and a holding container is arranged in the inner shell. The storage tank is provided with a connecting pipe and a support column, the connecting pipe is provided with a cover, and the cover is provided with a handle; the present invention has strong practicability, is very convenient to use, and has a very simple structure. The damage of cold weapons to the human body, and maintain the original state of throwing cold weapons, which is greatly conducive to the promotion of throwing cold weapons, so that people not only increase the fun when exercising, but also achieve a good training effect , to avoid the loss of traditional Chinese skills.

The invention discloses an on-site undisturbed soil block sampling device easy to transport and small in disturbance and a sampling method thereof, the sampling device is a totally-closed box body which is composed of a box cover, three box body plates, a soil cutting plate and a sealing plate and is provided with a cavity, a wrapping film is arranged in the totally-closed box body, and a dowel bar is arranged in the center of the top of the box cover. The sampling method comprises the following steps: determining a sampling area and making a corresponding mark; the sampling area is excavated and leveled, a sampling operation space and environment are formed, the sampling depth is determined, and the thickness of an undisturbed soil block sampling protection layer is reserved; an isolation groove is excavated around the sampling area, and the sampling area is separated from the surrounding soil body; a sampling device is adopted for sampling, the sampling device completing sampling is conveyed to an indoor laboratory, and the undisturbed soil blocks are taken out. A wrapping film and a sealing plate are arranged in the sampling device, so that evaporation of moisture in the original soil blocks during sampling, transportation and storage is relieved, and the original state sealing performance of the sampling device on the undisturbed soil blocks is enhanced.