Abstract: Disclosed are immunogenic constructs including: a nanoparticle; a cationic polymer electrostatically bound to an exterior surface of the nanoparticle and a stabilizer bound to the cationic polymer or the exterior surface of the nanoparticle; and an antigen or antigen producing agent. Optionally, the constructs may include adjuvant and/or one or more functional oligonucleotide(s) (e.g., siRNA or pDNA). Also disclosed are methods of using the provided immunogenic constructs for co-delivering an adjuvant, antigen, and optionally siRNA to a cell, inducing immune response in a subject, and treating or preventing an infectious disease in a subject.

Abstract: A BBU fault diagnosis method includes, whether a power supply is normal during switching from a main power supply to a target BBU is determined based on power supply switching data. If NO, a fault may be accurately located in a switching logic. If YES, a working state of the target BBU is subsequently determined according to a hardware signal of the target BBU, and whether there is an anomaly occurring to the target BBU during operation is determined based on the working state. If YES, a specific anomaly source causing the anomaly is further determined by fault simulation, such that a targeted repair is performed to make the target BBU return to normal.

Abstract: Disclosed are immunogenic constructs including: a nanoparticle; a cationic polymer electrostatically bound to an exterior surface of the nanoparticle and a stabilizer bound to the cationic polymer or the exterior surface of the nanoparticle; and an antigen or antigen producing agent. Optionally, the constructs may include adjuvant and/or one or more functional oligonucleotide(s) (e.g., siRNA or pDNA). Also disclosed are methods of using the provided immunogenic constructs for co-delivering an adjuvant, antigen, and optionally siRNA to a cell, inducing immune response in a subject, and treating or preventing an infectious disease in a subject.

Abstract: Disclosed are immunogenic constructs including: a nanoparticle; a cationic polymer electrostatically bound to an exterior surface of the nanoparticle and a stabilizer bound to the cationic polymer or the exterior surface of the nanoparticle; and an antigen or antigen producing agent. Optionally, the constructs may include adjuvant and/or one or more functional oligonucleotide(s) (e.g., siRNA or pDNA). Also disclosed are methods of using the provided immunogenic constructs for co-delivering an adjuvant, antigen, and optionally siRNA to a cell, inducing immune response in a subject, and treating or preventing an infectious disease in a subject.

Abstract: The present invention provides a preparation method for a high-performance water infiltration resisting material. Components of the water infiltration resisting material are mixed by the following weight ratio: wherein the content of ammonia silicate is 2.0-7.0 wt %, the content of sodium ethylsiliconate is 1.2-20.5 wt %, the content of polyacrylate-diatomite is 6.0-13.0 wt %, the content of sandy soil is 15.0-40.0 wt %, the content of coarse sand is 4.0-12.0 wt %, the content of calcia is 6.0-17.0 wt %, the content of cement is 30.0-50.0 wt %, and the content of additive is 0.02-0.09 wt %. The present invention can be used in dams, baths, pools, basements, building roofs and other fields of water infiltration resisting, and has the characteristics of high resistance to water infiltration, long effective water resistance time, being non-toxic and harmless, and convenient use.

Abstract: The present invention provides a graphene copper pantograph pan material for high-speed trains and a preparation method thereof, and the pan uses graphene as a reinforcing material, copper and iron as base materials, coke powder and graphite fiber as self-lubricating wear-resistant materials, and titanium, tungsten and molybdenum as additives. After being uniformly mixed, all the components are directly formed by hot pressing. The pantograph pan prepared by the present invention has the advantages of favorable electrical conductivity, wear resistance, impact resistance, ablation resistance and the like, and has little wear to overhead lines. The pan not only has simple preparation process, but also has much better performance than the conventional carbon pans and metal impregnated pans. The pan material is not only suitable for pantograph pans for high-speed trains such as high-speed rails and bullet trains, but also suitable for electric contact materials for low-speed trains such as subways.

Abstract: A preparation method for a plant growth agent for ecological water retention, fertilizer saving and production increase promotion is disclosed. The contents of various components in the growth agent by mass ratio are: straw 40-72 wt %, polyacrylate 5-12 wt %, diatomaceous earth 6-15 wt %, waste paper 1-5 wt %, zeolite 8-30 wt %, water 10-30 wt %, and additive 0.054-0.135 wt %. The growth agent is prepared by a microwave method. When applied into the soil, the growth agent can quickly absorb and keep rainwater or irrigation water without leakage, thereby ensuring sufficient water in rhizosphere and slow release for use by plants. At the same time, the growth agent has the functions of adsorbing fertilizers such as nitrogen, phosphorus and potassium and retaining the fertilizers in the growth agent for use by plants, thus the loss of nutrients is greatly reduced, and the fertilizer effect is prolonged.

Abstract: A transparent sheet for freeing formed floor and wallboard from coating with UV paint and coating, including following raw materials in parts by weight: 100 parts of PVC resin powder, 25-40 parts of plasticizer, 2-5 parts of stabilizer and 1-2 parts of lubricant. A method for preparing the transparent sheet: (1) weighing the raw materials according to a ratio of the PVC resin powder, the plasticizer, the stabilizer and the lubricant; and filtering the raw materials; (2) mixing the filtered raw materials and calendering the mixture by a calender to obtain a transparent sheet blank; (3) ultraviolet-curing the transparent sheet blank and coating a wear-resistant agent onto the transparent sheet blank to obtain the transparent sheet.