30results about How to "Determination of comprehensive" patented technology

The invention provides a landscape interaction control system and method so as to solve the technical problems of single performance of an existing landscape control system and severe resource waste due to repeated construction. The system comprises a fountain landscape unit, a loudspeaker box power amplifier unit and a light illumination unit. The system also comprises a data acquisition unit for collecting tourist flow, tourist action and tourist distribution information, and a total controller. The data acquisition unit is in communication connection with the total controller through a data acquisition card. The total controller receives data information collected by the data acquisition unit and controls the fountain landscape unit, the loudspeaker box power amplifier unit and the light illumination unit to function cooperatively. The Landscape interaction control system overcomes the defects that a conventional landscape is static and single, has the advantages of being open, dynamic and flexible, can enable a plurality of functions of tourism, entertainment and media of the landscape to be integrated and realizes interaction between persons and the landscape, and enhances enjoyment and experience feeling.

The invention discloses a detection method of brexpiprazole starting material related substances. The detection method comprises steps as follows: a, preparation of a reference substance solution; b, measurement of the reference substance solution; c, preparation of a test solution; d, measurement of the test solution. With the adoption of the detection method of brexpiprazole starting material related substances, through screening with multiple processes, impurities A1-1, A1-2, A1-3 and A1-4 in a brexpiprazole starting material 7-hydroxy-2-quinolone can be effectively separated and detected, the specificity is high, detection results are accurate and reliable, and the method has multiple advantages of being high in precision, good in stability, good in repeatability, convenient to operate, shorter in time and the like. Compared with existing methods, the method has the advantages that various impurities of samples can be measured more comprehensively, the detection time is appropriate, the results are more reliable, and the method is suitable for popularization and application.

The invention discloses a GC-IMS pear production place distinguishing method based on an aromatic substance fingerprint spectrum. According to the invention, a headspace gas chromatography-ion mobility spectrometry instrument is used for detecting pears from different producing areas; GC-IMS sample data are obtained; the GC-IMS sample data is subjected to statistical analysis through LAV analysissoftware and GC * IMS Library Search Software qualitative software of the instrument, and GC-IMS fingerprint spectrums of volatile aroma components of the pears from all production places are obtainedfor distinguishing the production places of the pears. The GC-IMS technology is applied to collection and trace analysis of complex aroma substances in the pears from different producing areas, comprehensive fingerprint information is provided for distinguishing the producing areas of the pears, rapid and accurate distinguishing of the producing areas of the pears from different producing areas is achieved, and theoretical basis and data support are provided for identifying and tracing the producing areas of the pears.

The invention relates to a device for determining soil wind erosion of black soil farmland, and an application method of the device, belonging to the field of wind erosion measurement, aiming at solving the problems that the existing big spring number eight (BSNE) sand collecting instrument is limited in particle size range of collected soil particles and larger in error in the wind erosion measurement value of the northeast black soil area. According to the device for determining the soil wind erosion of the black soil farmland, a trapezoid hollow box body is adopted as a sand excavation box,a ventilation screen is arranged on the top face of the sand excavation box, a ventilation opening is formed in the side face where the narrow side of the sand excavation box is positioned, and a windscreen baffle plate is arranged on the bottom face of the box body of the sand excavation box; the sand excavation box is connected with a sand collection box, so that a sand box assembly is formed;a plurality of bases are fixed on a fixed rod, and support frames are arranged on the bases; the sand box assembly and tail wing wind deflectors are installed on the support frames. The device for determining the soil wind erosion is applied to wind erosion monitoring of the black soil farmland, and the soil sand transport fluxes at different heights are obtained by calculation; the device is easyto operate, small in monitoring error and higher in applicability, and the obtained conclusion is closer to reality.

The invention belongs to the technical field of power grid stability analysis of a power system, and particularly relates to a system and method for testing a volume time constant of a large steam turbine. The system mainly comprises steam turbine governor valves, a main steam pressure transmitter, a governing stage pressure transmitter, an intermediate pressure cylinder steam inlet pressure transmitter, a low pressure cylinder steam inlet pressure transmitter, a displacement sensor and other measuring devices, a data acquisition module, and parallel experiment function modules additionally arranged in the load command link in control logic. Through testing and data analysis of signals for reflecting the steam turbine volume time constant, the accurate steam turbine volume time constant can be acquired, the reliability of a steam turbine speed governing system simulation model and the accuracy of model parameters of the model are improved, the steam turbine volume time constant can be comprehensively and quickly measured, and the requirements for stability calculation and analysis of a power grid are met.

The invention discloses a method for determining phenylpropanoid glycoside substances in a Tibetan medicine Lamiophlomis rotate. According to the invention, the characteristic that phenylpropanoid glycoside can be hydrolyzed to release phenethanol and cinnamic acid compounds is used, various types of phenethanol and cinnamic acid compounds in Lamiophlomis rotata are separated by a high performance liquid chromatography method and determined by using an external standard method, so that accurate determination of phenylpropanoid glycoside substances in the Lamiophlomis rotate can be achieved.

The present invention relates to a method for testing the interaction of a temperature-sensitive random polymer with agglutinin. The method comprises the steps of: preparing a temperature-sensitive random polymer P (DEGMA-co-OVNGlu) solution; preparing an agglutinin protein Con A solution, an agglutinin protein BSA solution and an agglutinin protein RCA120 solution; UV testing the Con A solution,the BSA solution and the RCA120 solution; UV testing the mutual combination of the polymer with Con A, BSA, RCA120; subjecting different concentrations of polymer solutions to a dynamic light scattering test; and adding the agglutinin solution to the polymer solution and then performing a dynamic light scattering test. Compared with other test methods (surface plasmon resonance and isothermal titration calorimetry), the method is easy to operate, low in cost, and fast in test analysis.

The invention discloses a method for rapidly distinguishing production places of jasmine-fragrance grapes based on GC-IMS fingerprint spectrums. According to the method, a headspace gas chromatography-ion mobility spectrometry combined instrument is adopted to detect the jasmine-fragrance grapes from different producing areas to obtain GC-IMS sample data, the GC-IMS sample data is subjected to statistical analysis through LAV analysis software and GC * IMS Library Search Software qualitative software of the instrument, and the GC-IMS fingerprint spectrums of the volatile aroma components of the jasmine-fragrance grapes from various producing areas are acquired so as to distinguish the producing areas of the jasmine-fragrance grapes. According to the invention, the GC-IMS technology is adopted to perform collection and trace analysis on the complex aroma substances in the jasmine-fragrance grapes in different production places, so comprehensive fingerprint information is provided for production place distinguishing of the jasmine-fragrance grapes, the rapid and accurate distinguishing of the jasmine-fragrance grapes in different production places is achieved, and the theoretical basis and the data support are provided for the production place identification and the source tracing of the jasmine-fragrance grapes.

The invention relates to a GC-MS detection method of contents of 12 amino acids. The GC-MS detection method comprises the following steps: (1) preparing a standard working solution; (2) preparing a sample working solution; and (3) detecting and analyzing by a GC-MS method. The method disclosed by the invention is scientific and reasonable in design and can be used for carrying out accurate qualitative and quantitative analysis on 12 amino acids so that component detection and analysis are faster, time is saved, detection sensitivity is high and detection data is accurate.