62 results about "Stress recovery" patented technology

A multi-bath apparatus and method for cooling a superconductor includes both a cooling bath comprising a first cryogen and a shield bath comprising a second cryogen. The cooling bath surrounds the superconductor, and the shield bath surrounds the cooling bath. The cooling bath is maintained at a first pressure and subcooled, while the shield bath is maintained at a second pressure and saturated. The cooling bath and the shield bath are in a thermal relationship with one another, and the first pressure is greater the second pressure. Preferably, the cryogens are liquid nitrogen, and the superconductor is a high temperature superconductor, such as a current limiter. Following a thermal disruption to the superconductor, the first pressure is restored to the cooling bath and the second pressure is restored to the shield bath in order to restore the superconductor to a superconductive state.

The invention relates to a Chinese herbal composite feed additive used for transportation stress recovery of beef cattle, and effectively solves the poor digestive function and immunity problems resulted from poor body conditions brought about during transportation of beef cattle. The additive is prepared by the following components by weight percent: 22-28% of medicated leaven, 15-20% of haws, 0.5-1.5% of astragalus polysaccharides, 1-2% of active yeast, 1.5-2% of niacinamide, 0.7-1.2% of vitamin C, 0.25-0.4% of vitamin E, 0.25-0.5% of zinc sulfate, 20-25% of potassium chloride, 10-15% of ammonium chloride, and 10-15% of magnesium oxide. Specifically, each component is first crushed to a particle size below 0.5mm respectively, the niacinamide, the vitamin C, the vitamin E, the astragaluspolysaccharides and the active yeast are mixed uniformly, then the mixture is mixed with the potassium chloride, the ammonium chloride and the magnesium oxide uniformly, and finally the haws and the medicated leaven are added and stirred uniformly, thus obtaining the feed additive. The composite feed additive of the invention has the advantages of scientific prescription, abundant raw materials, and easy production. Application of the feed additive in the feed of beef cattle after transportation stress can promote the beef cattle to supplement electrolytes, trace elements and vitamins as quickly as possible after transportation stress. Thus, the composite feed additive provided in the invention has the effects of improving body conditions, enhancing digestion function and immunity.

The invention provides a multi-parameter combination test of a horizontal well fixed pipe string to quickly find a water pipe string and a method. The testing instrument (flowmeter, pressure gauge, etc.) Connect and run into the horizontal section of the horizontal well with the packer. According to the number of fracturing stages of the horizontal well and the characteristics of water breakthrough, different numbers of packers are equipped to isolate the horizontal section into different production intervals, and flow meters and pressure gauges are placed correspondingly in each production interval. After running the test pipe string into the well, shut down the well and carry out the pressure recovery test of each layer. After the pressure recovery test is completed, the well will be opened for production, and the large-volume swabbing parameters will be used for production drainage. After a certain period of production, the pipe will be pulled out. The pressure, temperature, flow and other parameters of the pressure gauge are played back in the column, and the pressure, flow and other parameters of each sealing section are tested in sections to comprehensively judge the water-producing section and improve the accuracy and efficiency of water finding in horizontal wells.