Abstract: The present invention relates to a ceramic tracing proppant, and belongs to the field of oil and gas exploitation aids. The ceramic tracing proppant of the present invention is mainly prepared from a neutron absorbing material and the following raw materials in parts by weight: 60-90 parts of bauxite, 30-90 parts of kaolin, and 1-5 parts of fluorite. The ceramic tracing proppant of the present invention has a very high compressive strength under a relatively low density, can effectively prop formation cracks, ensure a fracturing effect and provide an efficient channel for oil and gas output, and has a wide raw material source and a relatively low cost. In addition, the neutron absorbing material is used and fused with an existing neutron logging technology, such that permanent tracing can be achieved under non-radioactive conditions, and the crack height can be effectively, accurately, and quantitatively determined.

Abstract: The present disclosure provides a colorimetric nanosensor for detecting trace-levels of Hg2+ in environmental water, which is composed of Fe7S8 nanosheets, glutathione or its aqueous solution, 3,3?,5,5?-tetramethylbenzidine colorimetric solution, H2O2 aqueous solution, and NaAc-Hac buffer. The preparation method of Fe7S8 nanosheets is as follows: FeCl2·4H2O and CH4N2S are dissolved in ethylene glycol in a mass ratio of (2˜3):1, heated at 200° C. for 10˜15 hours, cooled, centrifuged, washed, and dried to obtain. The colorimetric nanosensor of the present disclosure can quickly and sensitively determine the trace-levels Hg2+ in environmental water. The colorimetric nanosensor of the present disclosure does not rely on large detection instruments, and the nanozymes used is low-cost, stable, and recyclable. It has important practical significance for accurate, fast, and low-cost detection of trace-levels of Hg2+ in environmental water.

Abstract: A mapping method for right-turn conflict warning lines at urban road intersections includes: obtaining the conflict data of urban intersections and the driving trajectory information of large vehicles and obtaining the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve through the driving trajectory information of large vehicles; using the regression model to construct the dynamic model of the right-turn conflict area of large vehicles and obtain the relationship between the parameters of the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve and the dynamic and static indexes; inputting the dynamic and static indexes of other road intersections into the dynamic model of the right-turn conflict area of large vehicles to obtain the corresponding outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve, and drawing the urban road warning line.

Abstract: This application provides a method and an apparatus for determining a pull-out direction. The method includes: obtaining environmental information of a current parking space and a parking record of a vehicle; and determining, based on the environmental information and the parking record, a first direction towards which the vehicle pulls out of the current parking space. According to the method for determining a pull-out direction in this application, an appropriate pull-out solution is recommended to a user based on the environmental information of the current parking space and the parking record of the vehicle. This improves user experience and ensures driving safety.

Abstract: A mapping method for right-turn conflict warning lines at urban road intersections includes: obtaining the conflict data of urban intersections and the driving trajectory information of large vehicles and obtaining the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve through the driving trajectory information of large vehicles; using the regression model to construct the dynamic model of the right-turn conflict area of large vehicles and obtain the relationship between the parameters of the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve and the dynamic and static indexes; inputting the dynamic and static indexes of other road intersections into the dynamic model of the right-turn conflict area of large vehicles to obtain the corresponding outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve, and drawing the urban road warning line.

Abstract: Disclosed are a device and a method for advanced water treatment, and the device comprises a plate-and-frame membrane reactor having a water inlet pipe and a water outlet pipe, a raw water delivery system communicating with the water inlet pipe of the plate-and-frame membrane reactor, and a clear water reservoir communicating with the water outlet pipe of the plate-and-frame membrane reactor; the advanced water treatment device further comprises an oxidant dosing system communicating with the water inlet pipe of the plate-and-frame membrane reactor or the raw water delivery system, the plate-and-frame membrane reactor further comprises a carbon nano-material composite membrane, the carbon nano-material composite membrane comprises carbon nano-material layers sequentially disposed between the water inlet pipe and the water outlet pipe, and a base membrane layer supporting the carbon nano-material layers, and the raw material of the carbon nano-material layers comprises mono-layer reduced graphene oxide and mul

Abstract: The present disclosure relates generally to antibodies and binding fragments thereof that bind to anti-CD123 antibodies, chimeric antigen receptors (CARs), or antibody binding fragments. In particular, the disclosed anti-idiotype antibodies and fragments bind to anti-CD123 antibodies, CARs, or fragments thereof and comprise novel complementary determining regions (CDRs). Finally, the present disclosure relates to methods of using the disclosed antibodies and fragments thereof to expand and/or activate CD123-CAR-expressing immune cells, detecting or quantifying CD123-CARs, and isolating CD123-CAR-expressing immune cells.

Abstract: Disclosed are a device and a method for advanced water treatment, and the device comprises a plate-and-frame membrane reactor having a water inlet pipe and a water outlet pipe, a raw water delivery system communicating with the water inlet pipe of the plate-and-frame membrane reactor, and a clear water reservoir communicating with the water outlet pipe of the plate-and-frame membrane reactor; the advanced water treatment device further comprises an oxidant dosing system communicating with the water inlet pipe of the plate-and-frame membrane reactor or the raw water delivery system, the plate-and-frame membrane reactor further comprises a carbon nano-material composite membrane, the carbon nano-material composite membrane comprises carbon nano-material layers sequentially disposed between the water inlet pipe and the water outlet pipe, and a base membrane layer supporting the carbon nano-material layers, and the raw material of the carbon nano-material layers comprises mono-layer reduced graphene oxide and mul

Abstract: Water-soluble artemisinin derivatives, their preparation methods, the pharmaceutical compositions containing the same derivatives and the use thereof are disclosed. The artemisinin derivatives have following formula I. It has been proved by pharmacological tests that these compounds and compositions have evident immuno-suppressive activities, and may be used in the preparation of novel immuno-suppressants for treating the diseases caused by hyperfunction of human immunity (e.g. the auto-immune diseases such as lupus erythematosus, rheumatoid arthritis, multiple sclerosis and the like), and for inhibiting the graft rejection after cell or organ transplantation.

Abstract: The invention provides a type of artemisinin derivatives having following structure I, its preparation method and use, as well as a pharmaceutical composition containing such artemisinin derivatives and its use. The arteminsinin derivatives of the present invention and their pharmaceutical composition containing the artemisinin derivatives. have immunosuppressive activities and can be used more safely. The composition which comprises the artemisinin derivatives can be formulated into long-term dosage forms such as tablet, pellet and the like, and have wider productive and use value.

Abstract: Water-soluble artemisinin derivatives, their preparation methods, the pharmaceutical compositions containing the same derivatives and the use thereof are disclosed. The artemisinin derivatives have following formula I. It has been proved by pharmacological tests that these compounds and compositions have evident immuno-suppressive activities, and may be used in the preparation of novel immuno-suppressants for treating the diseases caused by hyperfunction of human immunity (e.g. the auto-immune diseases such as lupus erythematosus, rheumatoid arthritis, multiple sclerosis and the like), and for inhibiting the graft rejection after cell or organ transplantation.

Abstract: The invention provides a type of artemisinin derivatives having following structure I, its preparation method and use, as well as a pharmaceutical composition containing such artemisinin derivatives and its use. The artemisinin derivatives of the present invention and their pharmaceutical composition containing the artemisinin derivatives. have immunosuppressive activities and can be used more safely. The composition which comprises the artemisinin derivatives can be formulated into long-term dosage forms such as tablet, pellet and the like, and have wider productive and use value.