Abstract: A method for concentrating rubber emulsion and a product prepared by the method are provided, the method includes: a concentrated latex is obtained by separating a superabsorbent resin added in advance into a rubber emulsion with a solid content of 0.01-70% after stirring and concentrating the resin-added rubber emulsion. The method requires simple equipment and consumes less energy, and the prepared polymer emulsion has a solid content up to 76%; the superabsorbent resin adopted herein is reusable after drying, which therefore effectively reduces the production cost; natural latex concentrated by the method has rather high yields of dry rubber and little wastewater production; products prepared from the concentrated natural latex have excellent mechanical property, aging resistance and adhesive property; and concentrating natural latex according to this method does not require advance agglomeration, which reduces the production procedures and improves the production efficiency significantly.

Abstract: A method for concentrating rubber emulsion and a product prepared by the method are provided, the method includes: a concentrated latex is obtained by separating a superabsorbent resin added in advance into a rubber emulsion with a solid content of 0.01-70% after stirring and concentrating the resin-added rubber emulsion. The method requires simple equipment and consumes less energy, and the prepared polymer emulsion has a solid content up to 76%; the superabsorbent resin adopted herein is reusable after drying, which therefore effectively reduces the production cost; natural latex concentrated by the method has rather high yields of dry rubber and little wastewater production; products prepared from the concentrated natural latex have excellent mechanical property, aging resistance and adhesive property; and concentrating natural latex according to this method does not require advance agglomeration, which reduces the production procedures and improves the production efficiency significantly.

Abstract: The present application provides a method of treating a cancer, including administering to a subject in need of cancer treatment a therapeutically effective amount of an mRNA encoding tumor suppressor protein p53 in combination with an anticancer therapeutic agent, or a pharmaceutically acceptable salt thereof, wherein the anticancer therapeutic agent is selected from an mTOR inhibitor, a platinum-based antineoplastic agent, and an AMPK activating agent.

Abstract: An impact testing device used for testing impact resistance of electronic devices is provided. The impact testing device includes a main body, a pneumatic pump connecting to one end of the main body and communicating with the main body, a transmitting element connecting to the other end of the main body and communicating with the main body, and an impact head fastened on the transmitting element. The pneumatic pump renders the main body a pressure to drive the transmitting element and make the impact head move to hit the testing point of the electronic device.

Abstract: A test device is used for projecting light into a to-be-tested product. The product includes a sidewall, the sidewall defines an opening, and the opening communicates with an internal space of the product. The test device includes a collimated light source and a support element. The collimated light source is used for emitting collimated light into the internal space through the opening. The support element supports the collimated light source. An included angle between the collimated light and the sidewall is about 5 degrees.

Abstract: A test device is used for projecting light into a to-be-tested product. The product includes a sidewall, the sidewall defines an opening, and the opening communicates with an internal space of the product. The test device includes a collimated light source and a support element. The collimated light source is used for emitting collimated light into the internal space through the opening. The support element supports the collimated light source. An included angle between the collimated light and the sidewall is about 5 degrees.