Abstract: The present invention relates to a reliability calculation method of a power distribution system considering hierarchical decentralized control of demand-side resources, including the following steps: step 1, establishing a multi-state model of wind turbine output and a two-state model of wind turbine failure, which respectively consider randomness of wind speed and uncertainty of wind turbine failure; step 2, establishing a multi-state reliability model of distributed wind power system including a plurality of wind turbines; step 3, establishing a reliability model of information communication system considering hierarchical decentralized control of random failures and information delays; step 4, establishing a reliability model of demand-side resources considering hierarchical decentralized control; and step 5, calculating a value of reliability of a power distribution system considering hierarchical decentralized control of demand-side loads, to acquire an analysis result of the reliability of the power di

Abstract: The application relates to the technical field of semiconductor manufacturing, and in particular relates to a front opening unified pod, a wafer transfer system and a wafer transfer method. The front opening unified pod includes a body, a wafer scanning device and a cover. The body is provided with an opening communicating with an interior of the body. The wafer scanning device includes a first wafer scanning device, is arranged on an inner wall of the body, and is configured to scan a storage condition of wafers in the body. The cover is fastened at the opening. The wafer scanning device is arranged on the inner wall of the body of the front opening unified pod, and the wafer scanning device scans and confirms the storage condition of the wafers in the front opening unified pod in real time.

Abstract: This application provides a data transmission method and a terminal device. The method includes the following steps: A terminal device determines that a first connection meets a preset condition. The preset condition includes one or more of the following: Signal strength received by the terminal device on the first connection is less than a strength threshold; and transmit power of the terminal device on the first connection is greater than or equal to a power threshold. Then the terminal device increases an amount of data to be transmitted on a second connection while decreasing an amount of data to be transmitted on the first connection. The method can be applied to uplink data splitting in a dual-connectivity or multi-connectivity system based on an NSA architecture, can improve reliability and efficiency of an uplink service, and can reduce power consumption of the terminal device.

Abstract: The present disclosure provides a preparation method of AM-type polystyrene microsphere ofloxacin imprinted polymer as well as an application thereof. A monomer acrylamide and an initiator ammonium persulfate are subjected to graft polymerization on the surface of modified polystyrene primary amine resin, to get grafted particles; then an adsorption test of a levofloxacin solution by the grafted particles PAM/PSA is conducted, and then a levofloxacin surface molecularly imprinted material MIP-PAM/PSA is prepared by using ethylene glycol diglycidyl ether as the crosslinking agent. The present disclosure can realize the separation and purification of racemic ofloxacin effectively, thus providing a new method and material for separating and enriching s-type ofloxacin in the industry. Because the antibacterial efficacy of S-ofloxacin on Gram-negative bacteria and positive bacteria is 8-128 times that of its enantiomer R-ofloxacin, so the present technology can improve the efficacy of a drug greatly.

Abstract: A system and method for optimal allocation of agricultural water based on water consumption control are provided. The system includes a data management module, configured to store and manage data related to water allocation; a basic data statistics module, configured to take statistics on various stored data; an agricultural evapotranspiration (ET) calculation module, configured to calculate an agricultural ET based on the stored data and statistical data; and a water resource allocation module, configured to generate a corresponding water resource allocation scheme based on an agricultural ET of each water consumption unit and corresponding data. Surface water and groundwater are jointly allocated to reduce groundwater exploitation, increase groundwater recharge, reduce invalid water loss and consumption in a carrying and allocation process, and improve an output benefit of agricultural water supply.

Abstract: A high-precision transient energy response prediction method for a complex structure, including: taking a time dependent term (formula I) of energy transfer between subsystems into account; establishing a transient power balance equation of each subsystem of the structure by combining with a loss factor matrix ? n of the complex structure; and given initial boundary parameters, adopting fourth-order and fifth-order Runge-Kutta algorithms to calculate transient energy response of each subsystem of the structure. The present invention establishes a more complete transient energy balance equation for each subsystem of the complex structure by taking the time dependent term of energy transfer between the subsystems of the complex structure into account, thereby significantly improving the prediction precision of the current transient statistical energy analysis method in the transient energy response prediction, and expanding the research scope of the current transient statistical energy analysis method.

Abstract: The invention provides an anti-falling prefabricated floor slab unit, wherein, the prefabricated floor slab unit is provided with a slab-column mounting hole matched with a column unit in cross section; and the anti-falling prefabricated floor slab unit is provided with a slab-beam mounting hole which is connected with an embedded part on the top surface of a beam unit or/and a lotus root beam unit to mount the anti-falling prefabricated floor slab unit.

Abstract: A dynamic response analysis method based on a dual-mode equation in a random noise environment includes the following steps: (1) dividing a structure and an acoustic cavity in an acoustic-structural coupling system into different subsystems; (2) calculating modes of the structural subsystems and the acoustic cavity subsystems; (3) calculating inter-mode coupling parameters in adjacent subsystems; (4) establishing a dual-mode equation of the coupling system; (5) by means of pre-processing, obtaining a cross power spectrum of generalized force loads applied on the subsystem modes under the action of a random load; (6) calculating the dual-mode equation to obtain cross power spectra of all participation factors of all modes; and (7) by means of modal superposition, calculating a random acoustic-structural coupling response of the system.

Abstract: A method of constructing a dynamic shear constitutive model for a fiber-reinforced composite material includes the following steps: 1. carrying out shearing experiments on the fiber-reinforced composite material under a plurality of strain rate loading working conditions to obtain a load-displacement curve under each working condition; 2. combining a Weibull damage model with a viscoelastic model to deduce a load-displacement relationship to be fitted including a Weibull damage distribution; 3. constructing a multi-curve least-squares objective function according to the load-displacement curve and the load-displacement relationship; 4. using a genetic algorithm to obtain initial values of parameters to be fitted, and searching around the obtained initial values of the parameters through a trust-region method to finally obtain a high-precision parameter value and a determined load-displacement relationship including the Weibull damage distribution; and 5.

Abstract: A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.

Abstract: A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.

Abstract: The present invention provides a power circuit, including a current-limiting chip, a current-limiting value setting circuit, and a baseband chip. A current setting port of the current-limiting chip is connected to a general-purpose input/output port of the baseband chip through the current-limiting value setting circuit. The general-purpose input/output port is configured to generate a first signal in a first time sequence period of timeslot transmitting of the baseband chip so that the current-limiting value setting circuit sets a current-limiting value of the current-limiting chip as a first current-limiting value. In the other time sequence periods of timeslot transmitting of the baseband chip, the general-purpose input/output port generates a second signal so that the current-limiting value setting circuit sets the current-limiting value of the current-limiting chip as a second current-limiting value. The first current-limiting value is greater than the second current-limiting value.

Abstract: The present invention provides a power circuit, including a current-limiting chip, a current-limiting value setting circuit, and a baseband chip. A current setting port of the current-limiting chip is connected to a general-purpose input/output port of the baseband chip through the current-limiting value setting circuit. The general-purpose input/output port is configured to generate a first signal in a first time sequence period of timeslot transmitting of the baseband chip so that the current-limiting value setting circuit sets a current-limiting value of the current-limiting chip as a first current-limiting value. In the other time sequence periods of timeslot transmitting of the baseband chip, the general-purpose input/output port generates a second signal so that the current-limiting value setting circuit sets the current-limiting value of the current-limiting chip as a second current-limiting value. The first current-limiting value is greater than the second current-limiting value.

Abstract: The multichannel capillary biosensor system includes a selecting valve system for selection of the sample or a reagent. The selecting valve system is connected to a second valve system accommodating a sensing channel and a first bypass channel. The second valve system is connected to a directing valve system having at least two positions, with a first position being connected to a second bypass channel and a second position being connected to a detector for detecting the analyte. The device has a pump connected at one end to the second bypass channel and the detector and at a second end to a waste vessel. The device also has a control system for controlling the device. The analyte can be selected from the group of microorganisms, macromolecules, and small molecules.

Abstract: A concentrated quaternary ammonium compound (QAC) solution comprising a QAC with a concentration greater than about 10% by weight and at least one solubility enhancing agent, such as an alcohol, is disclosed. A diluted QAC solution is useful on food products to prevent microbial growth on the food from a broad spectrum of foodborne microbial contamination. Also disclosed is a method of contacting food products with the dilute QAC for an application time of at least 0.1 second. Foods that can be treated by this method are meat and meat products, seafood, vegetables, fruit, dairy products, pet foods and snacks, and any other food that can be 10 treated and still retain its appearance and texture. One of the treatment methods is spraying and misting the QAC solutions on the food products for an application time of at least 0.1 second to prevent broad spectrum foodborne microbial contamination.

Abstract: The present invention is directed to satisfying the need to detect microbial contamination of food products. The described bioseparator/bioreactor coupled with an optical/electrochemical biosensor was able to specifically detect E. coli O157:H7 from 8.8×101 to 8.8×106 CFU/ml in 2.5 hours without any enrichment. Using this invention, concentrations of S. Typhimurium ranging from 8.6×102 to 8.6×106 CFU/ml in pure culture were detected in 2 hours without any enrichment. The invention may also be used for the detection of S. Seftenberg, which has the same sensitivity as S. Typhimurium. Other pathogens such as L. monocytogenes and S. Heidleberg did not interfere with the detection. The optimum inner diameter of the 25 cm long column for the detection of E. coli O157:H7 is 250 ?m.

Abstract: A concentrated quaternary ammonium compound (QAC) solution comprising a QAC with a concentration greater than about 10% by weight and at least one solubility enhancing agent, such as an alcohol, is disclosed. A diluted QAC solution is useful on food products to prevent microbial growth on the food from a broad spectrum of foodborne microbial contamination. Also disclosed is a method of contacting food products with the dilute QAC for an application time of at least 0.1 second. Foods that can be treated by this method are meat and meat products, seafood, vegetables, fruit, dairy products, pet foods and snacks, and any other food that can be 10 treated and still retain its appearance and texture. One of the treatment methods is spraying and misting the QAC solutions on the food products for an application time of at least 0.1 second to prevent broad spectrum foodborne microbial contamination.

Abstract: The present invention is directed to satisfying the need to detect microbial contamination of food products. The described bioseparator/bioreactor coupled with an optical/electrochemical biosensor was able to specifically detect E. coli O157:H7 from 8.8×101 to 8.8×106 CFU/ml in 2.5 hours without any enrichment. Using this invention, concentrations of S. Typhimurium ranging from 8.6×102 to 8.6×106 CFU/ml in pure culture were detected in 2 hours without any enrichment. The invention may also be used for the detection of S. Seftenberg, which has the same sensitivity as S. Typhimurium. Other pathogens such as L. monocytogenes and S. Heidleberg did not interfere with the detection. The optimum inner diameter of the 25 cm long column for the detection of E. coli O157:H7 is 250 ?m.

Abstract: A method for determining a concentration of a contaminant in a first sample, the method including producing the first sample, including adding a plurality of immuno-beads to a test substance; exposing a crystal microbalance immunosensor to the first sample; determining a change in a first motional resistance of the crystal microbalance immunosensor following exposure to the first sample (?R1); and determining the concentration of the contaminant in the first sample according to ?R1.

Abstract: The multichannel capillary biosensor system includes a selecting valve system for selection of the sample or a reagent. The selecting valve system is connected to a second valve system accommodating a sensing channel and a first bypass channel. The second valve system is connected to a directing valve system having at least two positions, with a first position being connected to a second bypass channel and a second position being connected to a detector for detecting the analyte. The device has a pump connected at one end to the second bypass channel and the detector and at a second end to a waste vessel. The device also has a control system for controlling the device. The analyte can be selected from the group of microorganisms, macromolecules, and small molecules.