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89results about How to "Excellent quality" patented technology

Electric spark induction controllable erosion and electrolysis compound efficient machining method

The invention discloses an electric spark induction controllable erosion and electrolysis compound efficient machining method which is characterized by comprising the steps of: with electrolyte as a working medium, immersing one end of a to-be-machined workpiece electrode and a tool electrode in the working medium, intermittently introducing air to a machining area and forming an air film between the to-be-machined workpiece electrode and the tool electrode; generating electric spark discharge between the to-be-machined workpiece electrode and the tool electrode under the action of an electric spark power supply to ensure that the to-be-machined workpiece generates an oxidation exothermic reaction with the introduced air under the action of electric spark discharge ignition and forms a burning effect so that efficient ablation is realized; in an air closed stage, carrying out electrochemical machining and surface dressing on the ablation surface under the action of an electrolysis power supply; and alternating to start an electric spark ignition pulse power supply and an electrolysis eroding power supply and moving the tool electrode until machining is finished. The invention has the advantages of high material eroding efficiency up to be several times, even tens of times of that of the conventional electric spark machining and also be higher than that of the conventional electrolysis machining under the same electrical parameters on the premise of ensuring machining quality and precision, good surface quality, precision and controllability and capability of eliminating surface residual stress.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Fine and rough feed composition for latter fattening period of high-quality beef cattle and feeding method of fine and rough feed composition

The invention relates to a fine and rough feed composition for a latter fattening period of high-quality beef cattle and a feeding method of the fine and rough feed composition. A fine feed is prepared by taking corns and corn germ cakes as main materials, and adding brans, cottonseed cakes, soybean cakes, calcium hydrogen phosphate, table salt, baking soda, microelements, vitamin AD3 powder and the like. A rough feed is prepared from 50% of ensiling corn straws and 50% of fresh brewer's grain. The feed resources including the ensiling corn straws, the fresh brewer's grain, the cottonseed cakes and the like are sufficiently utilized so that the cost of the feed is greatly reduced and a feeding method of free feeding of the fine feed for the latter fattening period of the high-quality beef, quantity-limiting and fixed-time feeding, and first-rough feed and second-fine feed feeding is realized; nutrition needed by muscle growth of the beef cattle and deposition of fat between muscle fibers is sufficiently met; the synchronization of the muscle growth and the rapid deposition of the fat between the muscle fibers is realized; the beef color and the fat color and luster meet the standard requirements. The dependence on barley and straws by the latter fattening period of the high-quality beef cattle is completely removed; the beef performance indexes including daily gain of the beef cattle, the slaughter performance, the high-quality beef block yield and the like are improved.
Owner:QINGDAO AGRI UNIV

Data hiding method based on image set

The invention discloses a data hiding method based on an image set. The data hiding method comprises the step of carrying out anti-overflow process on an original carrier image, the step of developing a reserved pixel area, the step of generating a carrier image, the step of respectively carrying out subtraction on the carrier image and a basic image in the built image set to obtain difference images and histogram information, the step of regarding the difference image which has largest peak value of a histogram as a carrier and hiding data based on the information hiding method of the histogram, the step of hiding label information corresponding the difference image which has the largest peak value of the histogram and the difference image which has the lowest peak value of the histogram based on the reserved pixel area serving as the carrier, the step of adding a secret containing difference image and the corresponding image in the image set to obtain a secret containing image, the step of carrying out xor operation on the secret containing image and the basic image corresponding to the lowest histogram peak value to obtain a secret containing carrier image to be transmitted, and the step of extracting label information from the secret containing carrier image through a receiving terminal, carrying out the information hiding inverse process and recovering hidden data and hidden carrier images. The capacity of information hiding is improved through the image set, and safer lossless data hiding is achieved.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Synergistic additive of natural-gas as welding and cutting gas

InactiveCN102604699AEasy to cutLow oxygen consumption per unitGaseous fuelsCeriumRare earth
The invention discloses a synergistic additive of natural-gas as welding and cutting gas, and relates to the technical field of the synergistic additives of the natural-gas as the welding and cutting gas, wherein a preparation process of the synergistic additive comprises the following steps: uniformly mixing ethanol with petroleum ether for later use; adding tetrahydrofuran into a reaction kettle, adding bis(cyclopentadienyl) iron and a liquid cerium-aluminum composite rare earth catalyst into the reaction kettle to stir, and mixing with the mixed solution after dissolving completely; and standing for 4 hours and discharging clear liquid through a liquid discharge valve at the side of the reaction kettle, and filling the clear liquid into a package bucket to obtain the synergistic additive. The synergistic additive combines a catalytic activation principle of the cerium-aluminum composite rare earth and special organic chemical materials to play roles of increasing the temperature and assisting the combustion in the natural gas, resisting against explosion and increasing the flame temperature of the combustion of the natural gas in oxygen. In addition, the synergistic additive can be gasified under certain pressure and mixed with the natural gas to increase the activity coefficient index of the natural gas and increase the temperature of the combustion of the natural gas in oxygen to about 3430 DEG C, which is at an advanced level in the industry. The synergistic additive can completely replace acetylene in cutting, welding, baking and flame spraying functions.
Owner:赵志鑫 +3

Production technology of sweet potato vermicelli

The invention relates to a production technology of sweet potato vermicelli, which comprises the processes of starchy sauce preparation, dough preparation, vermicelli preparation, cooling and drying, wherein the processes of starchy sauce preparation and dough preparation comprise the following steps: 1) starchy sauce preparation: pouring a fixed quantity of starch into a starchy sauce jar, adding 35-45 DEG C warm water of which the weight is 1.5-2 times the weight of the starch, and stirring uniformly; and adding 94-97 DEG C hot water of which the weigh is 4.5-5.5 times the weight of the starch in weight, stirring uniformly into a paste, and cooling to 68-70 DEG C; and 2) dough preparation: based on 100kg of starch with over 99% of fineness, adding 20-24kg of prepared starchy sauce paste and 52-55kg of 35-45 DEG C warm water, and stirring for 10-12 minutes while ensuring that the temperature in dough preparation is 40-45 DEG C; and pouring the prepared dough into a vacuum machine, and performing vacuumizing treatment through a vacuumizing machine to finish the dough preparation process. In the production technology of sweet potato vermicelli provided by the invention, no additive is added in the starchy sauce preparation process, the color and internal quality of the vermicelli are guaranteed, and the mouthfeel and toughness of the vermicelli are increased by the vacuumizing treatment.
Owner:河南新天豫食品有限公司

All-weather surface temperature generation method integrating thermal infrared and reanalysis data

The invention provides an all-weather surface temperature generation method integrating thermal infrared and reanalysis data, which is realized on the basis of random forest integrated thermal infrared remote sensing and reanalysis data. The method specifically comprises the following steps: performing data preprocessing and space-time matching; implementing a time algorithm; implementing a spacealgorithm; and generating the final 1km all-weather surface temperature. According to the invention, reanalysis data is introduced, a long surface temperature and related observation data can be provided, the data is integrated with thermal infrared satellite remote sensing to obtain all-weather surface temperature with long time sequence and high temporal-spatial resolution. The obtained surfacetemperature has good consistency with a traditional thermal infrared satellite remote sensing surface temperature product, and through the inspection of the actually measured surface temperature, theprecision is within an acceptable range, the image quality is higher, more space detail information of the surface temperature can be displayed, and the overall quality and precision are superior to those of a method for integrating thermal infrared satellite remote sensing data and passive microwave data.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1

Artificially cultivated selenium-rich radix codonopsitis and cultivating process thereof

The invention relates to an artificially cultivated selenium-rich radix codonopsitis and a cultivating process of the artificially cultivated selenium-rich radix codonopsitis. The content of selenium in the artificially cultivated selenium-rich radix codonopsitis is 3,100-9,800mg/kg, and the content of organic selenium takes up not less than 70% of the selenium total content. The cultivating process of the artificially cultivated selenium-rich radix codonopsitis is implemented in the way of seedling, ditching and transplanting. In the cultivating step, the nano-selenium plant nutrients are uniformly applied into ditches before the radix codonopsitis seedlings are transplanted, and the dose of the nano-selenium plant nutrients is 10-40kg/mu; and then the radix codonopsitis seedlings are obliquely transplanted into ditches so as to turn the soil and bury the seedlings, and then are subjected to field managements, such as weeding, stem cutting, fertilizer applying, irrigation and pest control, and finally foliar application by using 5-15% of aqueous solution of the nano-selenium plant nutrients during a full-bloom stage of the radix codonopsitis. The cultivating method is strong in operability, suitable for standardizing and scale product of the traditional Chinese medicinal materials, and the appearance and quality indexes of the selenium-rich radix codonopsitis cultivated by the method are prior to that of the ordinary radix codonopsitis.
Owner:渭源县莲峰镇绽坡村康荣中药材专业合作社

Preparation method for 4-chlorophenylhydrazine hydrochloride

InactiveCN103910650AEliminates the problem of easy agglomeration and difficult operation of feedingEasy dischargeHydrazine preparationSolubilityHydrogen Sulfate
A provided preparation method for 4-chlorophenylhydrazine hydrochloride comprises the following steps: 1) under an acidic condition, at 5-10 DEG C, dropwise adding a sodium nitrite aqueous solution with a concentration of 20% into 4-chloroaniline to perform a diazo reaction and to generate a diazo salt; 2) under a room temperature condition, dropwise adding an ammonium sulfite aqueous solution into a solution of the diazo salt obtained in the step 1, heating to 50-60 DEG C and keeping the temperature for 3-4 h; and 3) at 50-70 DEG C, dropwise adding a hydrochloric acid solution with a concentration of 20% into the solution obtained in the step 2, keeping the temperature for 1-2 h, reducing the temperature, filtering, washing, discharging the material, and drying to obtain a finished product. The beneficial effects comprise that by using ammonium sulfite aqueous solution as a reducing agent in the reduction reaction, the problems are solved that sodium sulfite solid is easy to cake during material charging in a conventional technology and material charging is not easy to operate; ammonium chloride and ammonium hydrogen sulfate which are generated in the acidification reaction have high solubility in water, and crystallization precipitation is late, thereby facilitating performing of the acidification reaction in the solution and reducing side reactions; and the product crystallizes loosely, is good in fluidity, easy for material discharging and washing, and product quality and yield are both better than conventional production levels.
Owner:TIANJIN QIDONG CHEM PLANT
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