Abstract: Disclosed is a testing device and method for a service life of an air-conditioning compressor of a new energy vehicle running with pure gas. The testing device includes an alternative refrigeration system, a measurement and control system, and a testing environment room. A main refrigeration cycle system of the alternative refrigeration system runs with pure gas, gas of a testing compressor is discharged via a discharge throttle valve, and then enters a suction end via a suction throttle valve and an electronic expansion valve, and since there is no phase change, a heat exchange amount is small; adjustable ranges of the discharge throttle valve, the suction throttle valve and the electronic expansion valve are wide; and based on the system structure, a small refrigeration system can be used to test a compressor having high cooling capacity, and the system can quickly achieve a target working condition with a small amount of refrigerant.

Abstract: Disclosed are a self-assembled nanoparticle containing a gB protein of an EB virus and a preparation method and use thereof The self-assembled nanoparticle comprises a first polypeptide and a second polypeptide; the first polypeptide comprises the gB protein and a first vector subunit, the second polypeptide comprises a second vector subunit; the first vector subunit is I53-50A1, and the second vector subunit is I53-50B.4PT1. In the self-assembled nanoparticle provided herein, the gB protein of the EB virus is displayed on the surface of the nanoparticle for the first time. The particle size of the self-assembled nanoparticle is larger than that of the antigen gB, and the chemical stability of the self-assembled nanoparticle is higher than that of the antigen gB, and the binding capacity with the neutralizing antibody of the self-assembled nanoparticle are higher than that of the antigen gB.

Abstract: The disclosure relates to a hard-sealing soluble bridge plug, comprising a body made of soluble metal. The body comprises a wedge, a slip and a guide shoe which are connected from top to bottom in turn; at least one metal sealing ring is sleeved at the junction of the outer circumference of the wedge and the slip, and the metal sealing ring is made of soluble metal. The hard-sealing soluble bridge plug provided by the disclosure is applied to the field of fracturing and stimulation operation of an oil and gas well so that the hard-sealing soluble bridge plug is more convenient to store, more stable to seal and more firm to anchor, the setting success rate of the hard-sealing soluble bridge plug is effectively improved to better adapt to down hole environments. Furthermore, due to simple and compact structure, the hard-sealing soluble bridge plug is easy to machine and manufacture, and is effectively reduced in the cost of the soluble bridge plug.

Abstract: The disclosure relates to a hard-sealing soluble bridge plug, comprising a body made of soluble metal. The body comprises a wedge, a slip and a guide shoe which are connected from top to bottom in turn; at least one metal sealing ring is sleeved at the junction of the outer circumference of the wedge and the slip, and the metal sealing ring is made of soluble metal. The hard-sealing soluble bridge plug provided by the disclosure is applied to the field of fracturing and stimulation operation of an oil and gas well so that the hard-sealing soluble bridge plug is more convenient to store, more stable to seal and more firm to anchor, the setting success rate of the hard-sealing soluble bridge plug is effectively improved to better adapt to down hole environments. Furthermore, due to simple and compact structure, the hard-sealing soluble bridge plug is easy to machine and manufacture, and is effectively reduced in the cost of the soluble bridge plug.

Abstract: The present invention relates to the technical field of downhole tools of oil-gas wells, and specifically discloses a large-diameter soluble bridge plug. The large-diameter soluble bridge plug includes a fracturing ball, a cone, slips and a guide shoe. The lower end of the cone is connected with the upper end of the slips; the lower end of the slips is connected with the upper end of the guide shoe; a sealing component is arranged at a joint of the cone and the slips; and the fracturing ball is connected with the upper end of the cone in a sealing manner. A shear pin hole is formed at the upper end of the cone; and a groove is formed in an internal surface of the lower end of the guide shoe.

Abstract: The present invention relates to the technical field of Chinese medicine, in particular to a traditional Chinese medicine composition and the use thereof. The traditional Chinese medicine composition comprises the following ingredients: pear juice, greenish lily bulb juice, fig juice, water chestnut juice, grosvenor momordica fruit, southern almond and northern almond. The traditional Chinese medicine composition has significant promotions on the phlegm-reducing and cough-relieving capabilities of the rats, and on the immune indices of bronchoalveolar lavage fluid of the rats, exhibiting that the traditional Chinese medicine composition provided in the present invention has good effects of clearing heat and moistening the lungs.

Abstract: The present invention relates to the technical field of Traditional Chinese medicine, in particular to a traditional Chinese medicine composition and the use thereof. The traditional Chinese medicine composition comprises the following ingredients: honeysuckle, tangerine peel, stir-baked malt, honey, and hawthorn juice. The traditional Chinese medicine composition of the present invention has significant promotions on the gastric emptying rate, intestinal motility, gastric digestive enzyme (pepsin) activity and pancreatic enzyme (trypsin, chymotrypsin, amylase and lipase) activity of rats, exhibiting that the traditional Chinese medicine composition of the present invention has significant effects of clearing heat-fire and moistening the intestine.

Abstract: The present invention relates to the technical field of Traditional Chinese medicine, in particular to a traditional Chinese medicine composition and the use thereof. The traditional Chinese medicine composition comprises the following ingredients: honeysuckle, tangerine peel, stir-baked malt, honey, and hawthorn juice. The traditional Chinese medicine composition of the present invention has significant promotions on the gastric emptying rate, intestinal motility, gastric digestive enzyme (pepsin) activity and pancreatic enzyme (trypsin, chymotrypsin, amylase and lipase) activity of rats, exhibiting that the traditional Chinese medicine composition of the present invention has significant effects of clearing heat-fire and moistening the intestine.

Abstract: The present invention relates to the technical field of Chinese medicine, in particular to a traditional Chinese medicine composition and the use thereof The traditional Chinese medicine composition comprises the following ingredients: pear juice, greenish lily bulb juice, fig juice, water chestnut juice, grosvenor momordica fruit, southern almond and northern almond. The traditional Chinese medicine composition has significant promotions on the phlegm-reducing and cough-relieving capabilities of the rats, and on the immune indices of bronchoalveolar lavage fluid of the rats, exhibiting that the traditional Chinese medicine composition provided in the present invention has good effects of clearing heat and moistening the lungs.