Abstract: An effective capacity estimation method and system for super capacitor energy storage systems are provided. The method includes: establishing a nonlinear electrical model of supercapacitor cell and an equivalent electrical model of a supercapacitor system; obtaining the first test data by charging the supercapacitor cell; based on the first test data, setting the initial value of parameters of the nonlinear electrical model of the supercapacitor cell by a preset algorithm; using a least-square method to identify the parameters of the nonlinear electrical model of the supercapacitor cell; obtaining electrical parameters of the equivalent electrical model of the supercapacitor system except the connection resistance parameters, carrying out a charging test of the supercapacitor system to obtain the connection resistance parameters, and estimating an effective capacity of the supercapacitor energy storage system based on the equivalent electrical model of the supercapacitor system after parameter identification.

Abstract: The present invention discloses a device and method for detecting fluid transparency. The detection device comprises: a detection pipeline, which allows a beam to be incident on and emergent from a fluid therein; a laser tube, used for outputting the incident beam; and a photoelectric detector, used for detecting the emergent beam from the fluid, wherein the photoelectric detector comprises a scatter detector and a transmission detector; and the detection method comprises obtaining a scattered background noise value and a transmission background noise value of a device, obtaining the scattered light intensity Iscatter obtained by the scatter detector and the transmission light intensity Itransmission obtained by the transmission detector, and calculating the particle-absorbed light intensity Iabsorb; obtaining the total light intensity Itotal of a laser; and obtaining a fluid transparency T.

Abstract: The present invention discloses a system for detecting the concentration of non-metal particles in a fluid and detection method thereof. The detection system comprises a particle morphology detection device, a metal particle detection device, and a detection pipeline, the particle morphology detection device and the metal particle detection device being connected to each other and wound around the detection pipeline. The detection method comprises: S1, detecting the concentration of fluid particles; S2, detecting the concentration of fluid metal particles; and S3, detecting concentration of fluid non-metal particles. By means of the detection system and the detection method, the concentration of non-metal particles in a fluid can be more accurately detected, and the detection accuracy is improved.

Abstract: A method for detecting the concentration of particles in a fluid is disclosed. The method comprises the steps of: S1: introducing a pure fluid into a detection device to obtain a scatter background noise value U noise output by the detection device; S2: introducing a fluid to be detected into the detection device, obtaining scatter signals output by the detection device, and obtaining voltage signals of standard particles; S3: sampling signals of the fluid in a certain period of time, extracting effective signals, carrying out threshold value analysis on the effective signals Ux obtained by sampling, and obtaining the number of particles present in the period of time; and S4: obtaining the concentration of the particles in the fluid according to the number of particles in S3. According to this method, the accuracy in calculation of the concentration of particles in a fluid can be effectively improved.

Abstract: The present invention discloses a system for detecting the concentration of non-metal particles in a fluid and detection method thereof. The detection system comprises a particle morphology detection device, a metal particle detection device, and a detection pipeline, the particle morphology detection device and the metal particle detection device being connected to each other and wound around the detection pipeline. The detection method comprises: S1, detecting the concentration of fluid particles; S2, detecting the concentration of fluid metal particles; and S3, detecting concentration of fluid non-metal particles. By means of the detection system and the detection method, the concentration of non-metal particles in a fluid can be more accurately detected, and the detection accuracy is improved.

Abstract: The present invention discloses a device and method for detecting fluid transparency. The detection device comprises: a detection pipeline, which allows a beam to be incident on and emergent from a fluid therein; a laser tube, used for outputting the incident beam; and a photoelectric detector, used for detecting the emergent beam from the fluid, wherein the photoelectric detector comprises a scatter detector and a transmission detector; and the detection method comprises obtaining a scattered background noise value and a transmission background noise value of a device, obtaining the scattered light intensity Iscatter obtained by the scatter detector and the transmission light intensity Itransmission obtained by the transmission detector, and calculating the particle-absorbed light intensity Iabsorb; obtaining the total light intensity Itotal of a laser; and obtaining a fluid transparency T.

Abstract: A method for detecting the concentration of particles in a fluid is disclosed. The method comprises the steps of: S1: introducing a pure fluid into a detection device to obtain a scatter background noise value U noise output by the detection device; S2: introducing a fluid to be detected into the detection device, obtaining scatter signals output by the detection device, and obtaining voltage signals of standard particles; S3: sampling signals of the fluid in a certain period of time, extracting effective signals, carrying out threshold value analysis on the effective signals Ux obtained by sampling, and obtaining the number of particles present in the period of time; and S4: obtaining the concentration of the particles in the fluid according to the number of particles in S3. According to this method, the accuracy in calculation of the concentration of particles in a fluid can be effectively improved.

Abstract: The invention provides a magnetic induction particle detection device and a concentration detection method, wherein the detection device comprises a signal detection system, a detection pipeline, excitation coil and a positive even number of induction coils, and the excitation coil are connected with the signal detection system and wound around the detection pipeline; the induction coils are connected with the signal detection system and wound around the excitation coil sequentially and reversely with respect to each other. By means of the device, preparation and installation can be facilitated, and detection precision can be improved. The method comprises the steps of: S1: acquiring an output signal of the signal detection system and obtaining a voltage amplitude change; and S2: according to the obtained voltage amplitude change, detecting the metal particle concentration. By means of the method, the precision of calculation can be improved.

Abstract: A metal oxide nanostructure is formed by oxidizing metallic metal in the presence of a solution containing a liquid ligand to form a metal-ligand complex, and decomposing the metal-ligand complex to form the metal oxide nanostructure. The metal-ligand complex can be a complex of zinc or copper with formamide. In one form, the nanostructure forms ZnO nanorods having a diameter of 10 to 1000 nm, where the nanorods having a hexagonal crystallographic morphology, and the nanorods are oriented perpendicular to a substrate.

Abstract: A metal oxide nanostructure is formed by oxidizing metallic metal in the presence of a solution containing a liquid ligand to form a metal-ligand complex, and decomposing the metal-ligand complex to form the metal oxide nanostructure. The metal-ligand complex can be a complex of zinc or copper with formamide. In one form, the nanostructure forms ZnO nanorods having a diameter of 10 to 1000 nm, where the nanorods having a hexagonal crystallographic morphology, and the nanorods are oriented perpendicular to a substrate.

Abstract: This transmission method serves to transmit information between a base station (BS) and a multiplicity of subscriber stations (MS) in transmission channels of a broadband signal. The transmission channels can be distinguished by different codes (Cs, C1, . . . , Cq) which modulate the broadband signal and which themselves are each modulated by the information to be transmitted in the respective transmission channel and are superimposed in the broadband signal. In this context, there is provision for at least one of the transmission channels (for example Cs) to be emphasized, as a prioritized transmission channel, in comparison with the other transmission channels (C1, . . . , Cq), in that its phase angle is shifted by a fixed amount in comparison with the phase angle of the other transmission channels.