Abstract: Disclosed is design optimization method of the structure considering centrifugal loads and stress constraints. Compared with the prior art, this application improves the method for obtaining the relaxation coefficient c, including the calculation of the second predicted maximum stress based on the predicted stress method from steps S9.1 to S9.8. The influence of the existence of jagged boundaries and gray densities on the calculation of the structural stress field is reduced. The most important thing is to decide whether to use linear penalty or nonlinear penalty for the elastic modulus of each element according to the ratio of the number of elements with design variables less than 0.1 and greater than 0.9 to the total number of elements. Introducing the predicted maximum stress can make full use of the allowable stress of materials, improve the quality of optimization design, and obtain a design scheme with a lighter mass.

Abstract: The present invention relates to knowledge graph reasoning model, system and reasoning method based on Bayesian few-shot learning, wherein the method at least comprises: building a Gaussian mixture model to entities and relations in a knowledge graph so as to reduce uncertainty of the knowledge graph; taking each said entity as a task to simulate a meta-training process of a newly appearing entity in the dynamic knowledge graph and perform task sampling; constructing a meta learner based on a graph neural network and conducing random reasoning; and training the meta learner so as to use a support set to represent the newly appearing entity. The trained knowledge graph reasoning model in the present invention is highly adaptive and able to infer new facts or new entities without retraining.

Abstract: Disclosed is a recycling purification and reuse system for farmland tail water, which includes a water collecting pool, a water purifying pool and a clean water pool; the water purifying pool is correspondingly arranged with the clean water pool; the water collecting pool is located above the side of the water purifying pool far away from the clean water pool; one side of the water collecting pool close to the water purifying pool is provided with an opening; the opening is provided with a filtering mechanism; the filtering mechanism is correspondingly arranged with the water purifying pool; a water pumping mechanism is arranged in the water purifying pool; and the water outlet end of the pumping mechanism is correspondingly arranged with the clean water pool.

Abstract: The disclosure discloses a synthetic method for benzimidazo[1,2-c]quinazolin-6-ones and belongs to the field of organic synthesis. In the disclosure, an ?-ketoamide compound shown as Formula I and an o-phenylenediamine compound shown as Formula II are used as substrates and undergo a reaction under the action of a catalyst and a base to obtain benzimidazo[1,2-c]quinazolin-6-ones shown as Formula III. In the disclosure, benzimidazo[1,2-c]quinazolin-6-ones are prepared based on a novel and efficient action mechanism, and the disclosure has the advantages that the raw materials are cheap, the catalyst is cheap and easy to obtain, the reaction is efficient and environmentally friendly, the substrate range is wide, the yield is high, and the operation is simple.

Abstract: The disclosure discloses a synthetic method for benzimidazo[1,2-c]quinazolin-6-ones and belongs to the field of organic synthesis. In the disclosure, an ?-ketoamide compound shown as Formula I and an o-phenylenediamine compound shown as Formula II are used as substrates and undergo a reaction under the action of a catalyst and a base to obtain benzimidazo[1,2-c]quinazolin-6-ones shown as Formula III. In the disclosure, benzimidazo[1,2-c]quinazolin-6-ones are prepared based on a novel and efficient action mechanism, and the disclosure has the advantages that the raw materials are cheap, the catalyst is cheap and easy to obtain, the reaction is efficient and environmentally friendly, the substrate range is wide, the yield is high, and the operation is simple.

Abstract: A crash barrier system for forming a crash barrier including a plurality of barrier units, each barrier unit including a body having at least one crash wall, the body defining a cavity for receiving ballast; the crash wall including a series of longitudinal grooves on the outside surface thereof, each groove adapted to house a reinforcement bar; a first barrier unit is connectable to an adjacent second barrier unit by locking pins; at least one locking pin able to pass through apertures in the body of the first barrier unit and reinforcement bar(s) housed in the crash wall of the first barrier unit, and through apertures in the adjacent second barrier unit and reinforcement bar(s) housed in the crash wall of the adjacent second barrier unit so as to lock the barrier units together to form the crash barrier.

Abstract: A method and network system for configuring connections between a plurality of network nodes, wherein each pair of network nodes is connected via virtual direct connections. The invention includes performing quality measurements of the virtual direct connections between each pair of the network nodes, and deciding, based on the results of the quality measurements, whether a virtual direct connection is to be used for conveying data or not, wherein the results of the quality measurements are transmitted to a network configuration control element which performs the deciding step.

Abstract: A power converter having a two stage boost circuit and a small boost converter. The main power flow for the power converter is via the two stage booster circuit having a single switch. The voltage spike of the switch is clamped by a diode and a capacitor. The energy at the capacitor is transferred to the power converter's output terminals by the small boost converter. The two stage boost converter topology enables the use of much lower voltage and Rdson MOSFET switches so as to reduce cost, switch conduction loss and turn on loss.

Abstract: A method and network system for configuring connections between a plurality of network nodes, wherein each pair of network nodes is connected via virtual direct connections. The invention includes performing quality measurements of the virtual direct connections between each pair of the network nodes, and deciding, based on the results of the quality measurements, whether a virtual direct connection is to be used for conveying data or not, wherein the results of the quality measurements are transmitted to a network configuration control element which performs the deciding step.

Abstract: A sensing element for sensing the concentration of an analyte in a medium is disclosed. The sensing element comprises a matrix material having at least one indicator component covalently bonded thereto. The indicator component is capable of providing a signal dependent on the concentration of a analyte in a medium. The indicator component is derived from at least one indicator compound having an aromatic ring to which is directly bonded a group including a functional portion which is conjugated relative to this aromatic ring.