80results about How to "Safe absorption" patented technology

The invention discloses an artificial culture method of Zn-enriched cordyceps militaris mycelia and a culture medium thereof; according to weight percentage, the formulation components of the culture medium comprise: 1.0 to 3.0 percent of glucose, 0.5 to 1.0 percent of peptone, 0.1 to 1.0 percent of yeast extract, 1.0 to 2.0 percent of agar powder and the rest of water, and the pH value of the culture medium is 5.0 to 7.5. The artificial culture method comprises the steps of test tube slant surface strain culture (activation), test tube liquid strain culture, triangular flask liquid seed culture, seeding tank culture, fermenter culture, plate-frame filtration, crashing, drying in vacuum, crashing and leading the mycelia into powder. The operation is simple, the culture period is short, the yield of mycelia is high, no pollution and waste are produced, and the method has the function of supplementing zinc, thus being capable of carrying out industrial production.

A fluid-filled surgically-implantable prosthetic device encloses one or more non-enclosing fitted shells arranged adjacent to and in a graduated relation to each other. The invention relates specifically to implantable breast prostheses with a low coefficient of friction between two or more interacting elastomeric shells in an aqueous fluid environment, without the addition of a lubricating agent to the fluid.

A device for fixing and rotationally driving a gripper tool or the like on the arm of a crane, an excavator or a similar transporting and lifting machine is disclosed. The device includes a housing. An adapter plate including an annular flange is arranged on the housing, the flange being rotatable about the housing by a grooved ball bearing. The housing includes a hydromotor which transmits the rotational movement thereof to the adapter plate by an output flange. The output flange and the adapter plate are axially distanced from each other. Screw bolts transfer the rotary driving force between the output flange and the adapter plate.

The invention discloses a method for improving the content of chromium and selenium of farm products, which comprises a method for producing a selenium-rich and chromium-rich organic fertilizer solution and a method for fertilizing crops, wherein a process of the method for producing the selenium-rich and chromium-rich organic fertilizer solution comprises the steps of mixing chromium glycine, sodium selenite and an organic fertilizer solution according to certain proportion, fully stirring the mixture, and then fermenting the mixture for certain time at the temperature of between 20 and 25 DEG C to obtain the selenium-rich and chromium-rich organic fertilizer solution; and the method for fertilizing the crops comprises the steps of diluting the selenium-rich and chromium-rich organic fertilizer solution by adding water with certain proportion, and then evenly spraying the diluted selenium-rich and chromium-rich organic fertilizer solution on leaves of the crops at different growth periods of the crops according to different crop varieties. After the method is implemented, the content of organic chromium and organic selenium of the farm products can be improved by between 10 and 15 times, the content of the chromium of the obtained farm products is between 0.21 and 0.52vg, and the content of the selenium is between 0.15 and 0.42vg. The method for improving the content of the chromium and the selenium of the farm products has simple and convenient operations, and is economical and practical.

A multiple piece firebox for placement within the kettle of a fuel-burning cooking vessel comprising a base formed of a refractory material on the floor of the kettle supporting an upper chamber formed of a refractory material. In a preferred embodiment, a plurality of mating side wall members define the upper chamber.

The invention relates to a selenium-rich mushroom bran feed, a preparation method of the feed, and a method for cultivating selenium-rich barley pests by using the selenium-rich mushroom bran feed. Selenium-rich mushroom bran is taken as a main raw material of the selenium-rich mushroom bran feed; the content of the selenium-rich mushroom bran in the selenium-rich mushroom bran feed is 5-30wt%; the content of selenium in the selenium-rich mushroom bran is 50-250mg / kg; the ultimate content of selenium in the selenium-rich mushroom bran feed is 5-20mg / kg. The preparation method comprises the following steps of: mixing raw materials to obtain a mixture, grinding the mixture, and then drying, grinding, sieving, mixing, grinding and conditioning the mixture. When the selenium-rich mushroom bran feed is used for cultivating the selenium-rich barley pests, barley pest larvae or pupae with high selenium content is obtained, wherein the selenium content of the selenium-rich barley pest larvae is 0.5-2.0mg / kg and the selenium content of the selenium-rich barley pest pupae is 0.5-1.5mg / kg. Through conversion on the selenium-rich mushroom bran by the barley pests, the pollution of mushroom sticks to environment can be effectively avoided, meanwhile the utilization rate of an inorganic selenium additive added in the mushroom sticks is enhanced and therefore, the waste of the selenium element under the condition of the shortage of selenium supply in China is avoided.

The tool holder (2) is configured for fastening to a machine tool and for reversibly receiving a rotary tool (4), in particular a ball shank milling cutter. The tool holder (2) is arranged in three parts, comprising a rear machine part (6), made of a ductile elastic tool steel, that reversibly fastens to the spindle of a machine tool, and having a front clamping part (10), also made of a ductile elastic tool steel, that reversibly receives the tool (4), and having an intermediate part (8), made of a heavy metal, in particular solid hard metal, disposed between the rear machine part (6) and the front clamping part (10). Owing to the greater density of the heavy metal in comparison with the tool steel, the tool holder (2) is better able to absorb forces occurring during a milling operation, thereby achieving a milling operation that is sparing of the cutting tool, and consequently achieving a longer service life.

A replaceable module for capturing amalgam and mercury from the waste water disposal system of a dental office, in which the waste water flows into a settling chamber, overflows from the settling chamber into a magnetically-assisted sluice, and then after being further cleaned by the sluice, flows on to a sewer connection.

The invention relates to a superworm powder rich in organic chromium, and a preparation method thereof. The content of organic trivalent chromium in the superworm powder rich in organic chromium is 10-200mg / kg. The preparation method of the superworm powder comprises the following steps: cleaning superworm larvae rich in organic chromium with deionized water, lyophilizing, carrying out low temperature squeezing, crushing, and carrying out ultramicro crushing. The superworm powder prepared in the invention well reserves the conformation of organic complex chromium, is rich in nutrients comprising free amino acids, water-soluble proteins, chitins and the like, and has a low protein denaturation degree, the granularity of crushed nutrients is extremely small, so it is benefit for the digestion and absorption; and the superworm powder has a low fat content, so the superworm powder has substantial healthcare effects on special people comprising fat people, diabetic patients and the like.

The invention relates to a multifunctional natural marine biological calcium preparation. Marine biological calcium raw materials such as shells of mollusks, pearls, corals, fish bones in the pollution-free waters are incompletely calcined for multiple times to prepare nano-aperture biological calcium powder of a porous micro structure containing an appropriate amount of active calcium, the prepared biological calcium powder can be used as a human body calcium supplementing preparation, detergent for food and tableware, heat preservation and heat conduction accelerants of a heat preservation material and the like. According to different uses, a corresponding raw material proportion and technology are adopted to obtain natural high-quality biological calcium fine powder: when used as the human body calcium supplementing preparation, the biological calcium powder can be safely and efficiently absorbed by the human body; when the biological calcium powder is used as the detergent, harmful substances attached to the surface of the food such as fruits and vegetables and the surface of the tableware can be effectively eliminated, and safety and no secondary pollution can be realized; and when the biological calcium powder is used as the heat preservation and heat conduction accelerant and added into the heat preservation composite material, the heat storage capacity and heat conduction coefficient can be effectively improved. By adopting the multifunctional natural marine biological calcium preparation, the problem that the heavy metal content in the continental biological calcium source is out of limits can be solved, and the multifunctional high-quality marine biological calcium preparation can be obtained.

The invention relates to the technical field of planting, in particular to a selenium-rich tea planting method. The method includes the following steps of (1) seedling selection, (2) preparation of selenium-rich soil, (3) breeding of selenium-rich tea seedlings, (4) transplanting of the selenium-rich tea seedlings, and (5) management of a selenium-rich tea seedling forest. According to the selenium-rich tea planting method, by rational combination of a fertilizer and a cultivation method, the planted tea leaves have high survival rate and high growth quality, plants can grow healthily, the survival rate is high, and the harvesting amount is large. Moreover, due to rational fertilization, the obtained tea plants can generate a large number of natural selenium-rich protein elements, the purpose of producing selenium-rich tea leaves is achieved, the production efficiency is high, and the method is suitable for large-scale planting.

A replaceable module for capturing amalgam and mercury from the waste water disposal system of a dental office, in which the waste water flows into a settling chamber, overflows from the settling chamber into a magnetically-assisted sluice, and then after being further cleaned by the sluice, flows on to a sewer connection.